Precision Holes Grinding

Realize High Precision Grinding of 2-5μm Machining Accuracy Stably.

Applications

The Fitting Testpiece of Hole and Column

Size:
200×200×200mm(single plate)
Material:
S136(HRC52)
Machine:
JDHGT600T
Highlights:

+ Milling and grinding of the inner holes;

+ Surface roughness of holes is Ra < 0.1μm;

+ Position deviation of holes is less than 3μm;

+ Holes and columns in the same diameter can be interchangeably fit.

Upper Cover Plate Part of the Metering Pump

Size:
φ45×15mm
Material:
440C(HRC55-60)
Machine:
JDHGT600T
Highlights:

+ Based on the center hole, the dimensional error, positioning error and cylindricity of the positioning holes are all less than 5μm;

+ Surface roughness Ra<0.2μm.

Mold Base

Size:
400×310×35mm
Material:
4Cr13(HRC52)
Machine:
JDHGT600T
Highlights:

+ Consistency error of holes ≤2μm; Dimensional accuracy of hole diameter < 3μm;

+ Positional accuracy of holes is ±5μm; Roundness, cylindricity, verticality ≤ 3μm.

The Fitting Testpiece of Hole and Column

Size:
200×200×200mm(single plate)
Material:
S136(HRC52)
Machine:
JDHGT600T
Highlights:

+ Milling and grinding of the inner holes;

+ Surface roughness of holes is Ra < 0.1μm;

+ Position deviation of holes is less than 3μm;

+ Holes and columns in the same diameter can be interchangeably fit.

Upper Cover Plate Part of the Metering Pump

Size:
φ45×15mm
Material:
440C(HRC55-60)
Machine:
JDHGT600T
Highlights:

+ Based on the center hole, the dimensional error, positioning error and cylindricity of the positioning holes are all less than 5μm;

+ Surface roughness Ra<0.2μm.

Mold Base

Size:
400×310×35mm
Material:
4Cr13(HRC52)
Machine:
JDHGT600T
Highlights:

+ Consistency error of holes ≤2μm; Dimensional accuracy of hole diameter < 3μm;

+ Positional accuracy of holes is ±5μm; Roundness, cylindricity, verticality ≤ 3μm.

Key Configuration

High-Speed Precision Spindle

Grinding Protection System

Grinding Filtration System

Grinding Wheel Dressing System

Grinding Wheel Diameter Measurement Device

JD130S-24-BT30 High-Speed Precision Spindle

High speed and low vibration is the basic guarantee for precision grinding.

Grinding Protection System Protects Key Parts of Machine Tool

Prevent the grinding chips from entering the inner of machine tool, reduce the wear of the rail and screw, and ensure the accuracy of the machine tool.

High Precision Grinding Filtration System

Adopting 4-stage filtration, and the filtration accuracy is 25μm.

The Grinding Wheel Trimming System Helps Maintain the Grinding Capability

After working for a long time, the grinding wheel will be clogged or abrasive passivated, which will lead to the decrease of grinding capability. In order to improve the grinding capability, the grinding wheel trimming system can trim on-line.

The Automatic Measuring Device of Grinding Wheel Diameter Replaces the Manual Tool Set and Obtains the Actual Diameter of the Grinding Wheel

The diameter of the grinding wheel needs to be measured for the first use, and using this device can reduce the probability of overcutting and scratching the side wall of hole. After trimmed, using this device can reduce the manual measurement error.

JINGDIAO Proven Precision Machining Solutions

High precision hole grinding requires multiple grinding process. In addition to grinding, other operation are required, including workpiece position alignment, incoming material inspection, workpiece cleaning, workpiece remaining stock inspection etc. If these operations are completed manually, the processing will be discontinuous and the in-machine environment will be changed.

JINGDIAO 3-axis high-speed machining center can automatically run the above actions. The key is to complete the planning of processing, inspection and control programs in the software, and let the program drive the machine tool to execute, so as to ensure the continuity of machining in the machine and realize the working mode of "in-machine automation".

Feel free to contact us and introduce this efficient and accurate working mode into your workshop.