How to get higher efficiency in CNC parts machining?
The jig is an effective support tool in the CNC parts machining. In which, the CNC milling machine vise is a type of fixture common very commonly today. There are many different types of vises with different sizes, functions, and materials. Let's learn more about this type of equipment with Imported CNC Machine through the following article!
What is a cnc parts machining?
The CNC parts machining has the effect of fixing and clamping the part at the required position during the machining process. The vise usually consists of 1 body and 2 clamping jaws to hold as well as clamp the part when machining.
In the figure above, the vise clamp can be fixed or changed to clamp different shaped workpieces. The vise needs to be structurally sound and should be made of cast iron or cast steel that grips the workpiece.
Recommendations for higher efficiency of vise clamp
For high efficiency and durability CNC parts machining, have certain specifications. It helps to increase heat resistance and does not deform when subjected to strong impacts. As well as helping to prevent rust despite frequent exposure to temperature changes and humidity in the machining environment.
Features of CNC parts machining
- Firstly, the part clamped by vise can be moved along the Z and X axes
- Secondly, refined by cast iron or alloy steel with a hardness of about 50-60 RC.
- Moreover, handwheel should be manufactured from chrome material and be resistant to rust
- Surfaces are smoothed and hardened
- Moreover, the clamps and soleplate are smooth and precisely machined in CNC parts machining
- Versatile visor can also be rotated horizontally or vertically. Creating many angles of inclination is very convenient in machining inclined surfaces of the part.
- Both the outer profile and the inner cavity profile can be machined
- However, only low-height parts can be machined that do not exceed the clamping range
- Unable to process parts that are too large
CNC milling machine vise structure
It has two parallel cheeks
- Type with turntable
- Firstly, cooling table mounting hole
- Secondly, bolts
- Fixed table
- Moreover, turntable
- Static cheeks
- Nuts are main element in CNC parts machining
- Lead screw
- Clamping bolt
- Type without turntable
- First, body
- Second, pads
- Also, static cheeks
- Moreover, lead screw
- Furthermore, sliding life
- Lastly, nuts
Construction of CNC clamping jaws.
The CNC milling machine vise has two clamping jaws. There is one movable clamping jaw and one fixed clamping jaw. The clamp surface is machined with high precision as well as achieving a smooth surface finish, and the casting material has high tensile strength. These CNC parts machining are made of alloy
Commonly common in machining large-sized parts but keeping high accuracy. Today's modern CNC milling machine vises have a smart design that makes clamping and tightening operations easy and quick. The screw mechanism has an internal design that minimizes debris and dirt during machining.
Classification of CNC parts machining
Currently, the market has many types of CNC milling machines and is divided into three basic types:
- Parallel table visor: commonly common in cold work, especially in the filing process. This is the type of car that is commonly common today.
- Foot visor: Often common in jobs that require a large impact force such as chopping, hammering
- Small table visor has the main function of clamping micro-sized parts, requiring high precision in processing.
In addition, the vise in CNC parts machining is also classified according to its use and clamping force such as: mechanical vise, hydraulic vise, pneumatic vise, tilting vise, turntable vise, etc. In particular, the hydraulic vise is the most common type of vise today.
Hydraulic e-bike in CNC parts machining
Hydraulic visor is the vise common for detailed milling, applicable to CNC milling machines. The car is powered by a hydraulic system, so it has a firm clamping force. The opening of the hydraulic vise usually falls in the medium to large range. Clamps most of the workpieces with different sizes.
High precision part clamping hydraulic vise brings stability to part machining. To create precision machined products. This type of vise in CNC parts machining can clamp products with a clamping force of 2500 to 6000 kg. The opening is from 170mm to 300mm depending on the product model.
Working principle of CNC parts machining
The car has a structure consisting of 2 functions placed parallel to each other, one moving and one fixed. The screw and lever-based sliding mechanism holds the part securely during machining. The flexibility of the vise is quite high, it can almost be attached to most parts of different shapes.
A self-centering rotary hydraulic vise
In the picture above, the two clamps move together to self-center the workpiece. The workpiece is clamped with an oil pressure of 500N/cm2 from the pump mounted at the bottom (9) of the torch. Oil pressure causes piston to move downwards in CNC parts machining.
The lever arms rotate about the shaft on the screw and causing the two clamps to move the same distances simultaneously. T-shaped grooves (2) position and clamp the workpiece during machining. This vise can be rotated 360 degrees with respect to the bottom (9).
CNC parts machining mounting method
Visor mounting method
- First, clamps
- Second, mandrel
- Lastly, gasket (angle steel)
When mounting the vise, we use the key in the groove in the middle of the table. Figure a is a correction method for mounting directly by the mandrel in contact with the fixed clamp on the milling machine table and secured by the lead screw.
If the clamp in CNC parts machining is perpendicular to the mandrel of the machine, we put an angle steel bar close to the mandrel. There are many types of CNC milling machines. Each type has different characteristics, functions, and structures, suitable for many different processing needs.
Significance of machine selection (CNC)
Therefore, you need to understand the structure and function of each type of machine to choose and install a vise suitable for each different workpiece processing purposes. To ensure that the product is accurate and the machining process is easier and faster.