Machine Features
“High Precision Features of CNC Broach Grinding Machines”
CNC broach grinding machines stand out prominently for their remarkable high precision capabilities. These machines are meticulously designed and engineered to meet the most stringent demands of modern manufacturing.
The grinding spindles within the CNC broach grinding machines are of the highest precision grade. They can rotate with minimal runout, ensuring that the grinding process imparts an extremely smooth and accurate surface finish on the broaches. The advanced control systems, often with high-resolution encoders, allow for micro-level adjustments of the grinding parameters. This means that the speed, feed rate, and depth of cut can be precisely controlled to within fractions of a millimeter or even finer tolerances.
The machine structures are built with great rigidity and stability. High-quality materials, such as specially treated cast iron, are used to construct the beds and columns, effectively reducing vibrations during the grinding operation. This stability is crucial as it prevents any unwanted deviations that could compromise the precision of the broach’s teeth and overall geometry.
Moreover, the automatic measurement and compensation systems integrated into these machines play a vital role in maintaining accuracy. They continuously monitor the grinding process and make real-time adjustments to correct any potential errors. This not only ensures the consistency of each broach produced but also enables the achievement of tight tolerances that are essential for critical applications, such as in the aerospace and automotive industries.
In conclusion, the high precision of CNC broach grinding machines makes them indispensable tools in industries where the quality and accuracy of broaches are of utmost importance, enabling the production of broaches that meet and exceed the most demanding specifications.
Machine Specifications
Main technical specifications | Specific parameters | Remarks |
Repairable broach type | Grinding of the front edge of circular broaches, spline broaches, and other inner hole broaches, flat broaches, and keyway broaches | When grinding a flat broach, a special fixture or suction cup should be installed on the workbench |
Maximum length of sharpable broach | 1900mm | |
Diameter of sharpable broach | 100mm | |
Maximum length of sharpable broach | 1600mm | |
Maximum width of sharpable broach | 160mm | |
Height from the center of the thimble to the workbench | 160mm | |
Workbench size | 2550mmX200mm | Length x width |
Left and right movement stroke of workbench | 1750mm | Numerical control X axis |
Left and right movement speed of workbench | 3m/min | |
Workbench repeat positioning accuracy | 0.005mm | |
Forward and backward movement stroke of grinding head | 180mm | Numerical control Y axis |
Speed of forward and backward movement of grinding head | 3m/min | |
Repeated positioning accuracy | 0.01mm | |
Up and down movement stroke of grinding head | 250mm | Numerical control Z axis |
Speed of up and down movement of grinding head | 750mm/min | |
Repeated positioning accuracy | 0.01mm | |
Workpiece spindle: | ||
Taper of workpiece spindle top pinhole | No. 4 Mohs taper | |
Workpiece spindle speed | 0-100 rpm | |
Workpiece spindle center height | 160mm | |
Tailstock: | ||
Spindle pinhole taper | No. 3 Mohs taper | |
Top syringe sleeve stroke | 30 mm | |
Grinding head spindle: | Synchronous spindle, interface HSK-C40 | |
Grinding head spindle speed (frequency converter control) | 0～12000 rpm | |
Grinding head spindle power | 5Kw | |
Grinding head vertical rotation angle (manual B-axis) | 0-90° | |
Grinding head horizontal rotation angle (manual C-axis) | ±20° | |
Other: | ||
Machine tool dimensions (length × width × height): | 5000X2000X2200 | |
Input power supply | Three-phase 380V | |
Operating ambient temperature range | Room temperature | |
Equipment power | 25KW | |
Equipment gas consumption | 50L/min | |
Machine tool net weight | 5000Kg |
Machine Configuration
No. | Item | Brand |
1 | Numerical control system | Germany Siemens 828D |
2 | Linear guide | Kate or Han Jiang |
3 | Ball spindle | Taiwan Intime or Han River |
4 | Grinding head electric spindle | Brother Kai |
5 | Pneumatic device | Germany Festo |
6 | Lubrication system | Becher |
7 | Workpiece probe | Renishaw, United Kingdom |
8 | Low voltage components | Domestic and foreign well-known brands |
9 | Wire rod bearing | Japan NSK |
10 | Synthetic rubber coupling | Germany R + W |
11 | Electric spindle independent cooler | Rebo |
12 | Electrostatic suction mist | Lebo or Dingyou |
13 | Cooling filtration system | Hongshi |