Changsha Epoch Direct Drive Technology Co., Ltd.

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ETK2106A Final Boring Machine

Function Introduction:
This machine tool is mainly used for machining piston irregular pin holes, including conical holes, curved holes, and hyperbolic holes;
It adopts the SIEMENS 828D numerical control system, which is flexible and convenient for programming and has good stability;
Equipped with a micro-displacement servo boring device, the micro-displacement movement of the boring bar is completed under the condition of high-speed rotation of the spindle, with automatic dynamic balancing function, which can maintain high precision of the spindle; the size of the pin hole can be finely adjusted through the program, and the shape and position of the irregular hole can be adjusted through the program.

Technical Parameter
Describe

Commodity name: ETK2106A Final Boring Machine

Serial Number	Item	Unit	ETK2106A
1	Piston Pin Hole Diameter	mm	Ф15～Ф60
2	Piston Outer Diameter	mm	Ф50～Ф160
3	Spindle Accuracy	mm	0.002
4	Spindle Speed	rpm	50～3600
5	Maximum Effective Offset of Boring Bar (Single Side)	mm	0.06
6	Straight Hole Cylindricity	mm	0.002
7	Straight Hole Roundness	mm	0.001
8	Surface Roughness	μm	Ra0.3
9	Process Capability Index		ΦD±0.003mmCmK≥1.67
10	Main Machine (Length × Width × Height)	mm	2650×1720×2025
11	Net Weight of Main Machine	Kg	4500
12	Total Power	Kw	20

Main Machine Configurations:
1. Basic Components
The machine's base, slide, spindle box, and other basic components are made using high-strength casting technology, with a stable internal microstructure. The casting structure has undergone machine dynamics analysis and finite element analysis to optimize its geometry and ensure high rigidity. The wide and solid machine base, with its full-support load design, adheres to advanced material mechanics design concepts, ensuring load capacity during machining.
2. Numerical Control (NC) and Electrical Control Systems
Utilizes a SIEMENS 828D numerical control system, offering ease of operation, high reliability, and excellent stability. The NC programming and automatic machining program for pistons are both instruction code-based, simplifying programming. The interface is user-friendly, clear, and feature-rich.
3. Spindle Unit
Employs a high-precision hydrostatic-dynamic spindle with an independent constant-temperature oil tank, variable frequency stepless speed regulation, high precision, long lifespan, and easy maintenance.
4. Linear Axes
The Z-axis uses a high-precision ball screw and imported high-precision linear rolling guideways. The ball screw employs a pre-tensioned assembly process, significantly increasing transmission rigidity and eliminating thermal deformation during high-speed movement, thus ensuring the machine's positioning accuracy, repeatability, and stable machining precision.
The X-axis is equipped with a micro-displacement boring servo device (a patented product of YiPai CNC), enabling the machining of piston irregular hole surfaces (tapered holes, curved holes). The diameter of the pin hole can be fine-tuned through the machining program.
5. Micro-Displacement Boring Servo Device
The machine's micro-displacement boring servo device is independently developed by YiPai, with proprietary intellectual property rights. The micro-displacement movement of the boring bar is accomplished at high spindle speeds, featuring automatic dynamic balancing to maintain high spindle rotation precision. The electrical resolution reaches 0.0001mm, with an effective radial displacement of 0.06mm, offering extremely high machining accuracy and stability.
6. Lubrication System
The machine uses a timed, quantitative (adjustable flow rate) automatic lubrication system, automatically supplying oil to the guideways, screws, and other moving parts, avoiding waste and reducing environmental pollution.
7. Others
The machine is equipped with a fully enclosed protective cover, a high-flow cooling system, ensuring aesthetics, safety, and leak prevention. The chip removal device is simple, environmentally friendly, practical, and reliable.

ETK2606A Final Boring Machine