What are the processing technologies of CNC three-side boring lathes?
The processing technologies of CNC three-side boring lathes mainly include the following aspects:
1.Workpiece preparation
Drawing analysis
Carefully study the processing drawings of the workpiece to clarify the technical requirements such as dimensional accuracy,geometric tolerance,surface roughness,etc.
Determine the feasibility of the processing technology,considering the structural characteristics,material properties and processing difficulty of the workpiece.
Material selection and preparation
Select the appropriate material according to the use requirements and processing technology of the workpiece.Common materials include cast iron,steel,aluminum alloy,etc.
Inspect the raw materials to ensure that their quality meets the requirements.If necessary,pre-treat the materials,such as annealing,normalizing,etc.
Workpiece clamping
Select the appropriate fixture to ensure that the workpiece is stable and reliable during the processing.The selection of fixtures should take into account the shape,size,processing location and processing accuracy requirements of the workpiece.
Perform the clamping operation of the workpiece to ensure that the clamping force is evenly distributed and avoid deformation of the workpiece.At the same time,ensure that the workpiece is accurately positioned to ensure processing accuracy.
2.Tool selection and installation
Tool type selection
Select the appropriate tool type according to the material,processing technology and processing requirements of the workpiece.Common tool types include carbide tools,ceramic tools,diamond tools,etc.
For different machining processes,such as roughing,semi-finishing and finishing,different tool types and specifications should be selected.
Tool parameter determination
Determine the cutting parameters of the tool,such as cutting speed,feed rate,cutting depth,etc.The selection of these parameters should be comprehensively considered based on the workpiece material,tool type,processing technology and processing requirements.
Consider the life of the tool and processing efficiency,and reasonably select the parameters of the tool to achieve the best processing effect.
Tool installation and debugging
Correctly install the tool to ensure that the tool is installed firmly and reliably.The installation position of the tool should be accurate to ensure the processing accuracy.
Debug the tool to check whether the cutting edge of the tool is sharp and whether the installation angle of the tool is correct.If necessary,sharpen and adjust the tool.
3.Processing process
Roughing
Use a larger cutting depth and feed rate to quickly remove most of the workpiece excess and improve processing efficiency.
Pay attention to controlling the cutting force and cutting temperature to avoid workpiece deformation and tool damage.
Semi-finishing
Reduce the cutting depth and feed rate to improve processing accuracy and surface quality.
Semi-finish the workpiece to prepare for finishing.
Finishing
Use a smaller cutting depth and feed rate for high-precision machining to ensure the dimensional accuracy,form and position tolerance and surface roughness of the workpiece.
Pay attention to controlling the cutting force and cutting temperature during the machining process to avoid deformation of the workpiece and degradation of the surface quality.
Hole machining
For workpieces that need to be machined with holes,use a suitable boring tool to machine the holes.Pay attention to controlling the dimensional accuracy,form and position tolerance and surface roughness of the holes.
Rough boring,semi-finishing boring and finishing boring processes can be used to ensure the machining quality of the holes.
IV.Quality inspection and control
Dimensional accuracy inspection
Use measuring tools to measure the dimensions of the workpiece to ensure that the dimensional accuracy meets the requirements.Common measuring tools include calipers,micrometers,dial indicators,etc.
For important dimensions,precision measuring equipment such as three-coordinate measuring machines can be used for measurement.
Form and position tolerance inspection
Use measuring tools and measuring instruments to measure the form and position tolerances of the workpiece,such as parallelism,verticality,roundness,cylindricity,etc.
For high-precision workpieces,optical measuring instruments,laser interferometers and other precision measuring equipment can be used for measurement.
Surface roughness inspection
Use a surface roughness meter to measure the surface roughness of the workpiece to ensure that the surface roughness meets the requirements.
For higher surface roughness requirements,polishing,grinding and other processes can be used for processing.
Quality control
During the processing process,the processing parameters must be strictly controlled to ensure stable and reliable processing quality.
Periodically inspect the workpieces during processing to find and solve problems in a timely manner.If necessary,process adjustments and optimizations can be made to improve processing quality.
V.Post-processing
Cleaning and rust prevention
After processing,clean the chips and oil stains on the surface of the workpiece in time to keep the workpiece clean.
Rust-proof the workpiece to prevent rust.Anti-rust oil,rust-proof agent,etc.can be used for treatment.
Packaging and transportation
Choose appropriate packaging materials and packaging methods according to the shape,size and weight of the workpiece.Ensure that the workpiece is not damaged during transportation.
Mark the packaged workpieces and indicate the name,specifications,quantity,production date and other information of the workpiece.Convenient management and traceability.
