MKY7660 Double-End Grinding Machine
1. Equipment Purpose
The LYJSD Precision MY7660 Series is primarily used for processing bearing rings, rollers, cross shafts, automobile and motorcycle connecting rods, air conditioners, radars, mobile phones, ceramics, hardware tools, etc. This machine employs a turntable with open material trays for automatic loading and unloading, offering high automation, easy operation, and high precision with excellent stability.
2. Equipment Structure
The machine bed consists of a main bed and a feeding bed connected by M20 screws. The two grinding heads are horizontally positioned on the same plane of the main bed. Key components include:
-
Machine Bed:
- Manufactured using high-precision resin sand casting, featuring multiple aging treatments for a flat and aesthetic surface.
- Vibration-damping design ensures good stability and deformation resistance.
- The feeding bed is installed centrally on the main bed.
-
Guide Rails and Seats:
- Utilize advanced high-strength polymer rectangular guide rails.
- Features centralized automatic lubrication with low wear and excellent vibration absorption.
-
Main Spindle:
- Uses angular contact bearings at the front and double-row short cylindrical roller bearings at the rear.
- Designed for high precision and durability, with excellent sealing and waterproof features.
-
Feed and Compensation:
- Employs a single servo motor and precision screw rod for high-speed feeding and precise compensation.
- Ensures consistent dimensions before and after material cutting.
-
Wheel Dressing:
- Features a single-arm diamond pen dressing mechanism driven by a compact oil cylinder.
-
Waterproof and Dustproof Design:
- Fully enclosed structure with integrated waterproof and dustproof covers.
- Easy to replace protective components without disassembling the grinding head guide rail.
-
Cooling System:
- Centralized spindle water outlet for efficient cooling, ensuring a clean and leak-free work environment.
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Feeding System:
- Material tray turntable or open tray feeding, with variable speed controlled by an inverter.
-
Electrical Control:
- Operated via Mitsubishi PLC and touch screen, supporting manual, automatic, and compensation functions.
3. Main Parameters
| Parameter |
Specification |
| Grinding Wheel Dimensions |
φ600 × φ305 × 65-75 mm |
| Grinding Wheel Speed |
950 r/min |
| Feeding Speed |
0–8 rotations/min (variable) |
| Processing Range |
φ10–85 mm; Thickness: 6–60 mm |
| Grinding Head Travel |
100 mm (auto/manual) |
| Feed Increment |
0.001 mm/step (PLC set) |
| Motor Power |
11 kW/15 kW × 2 |
| Machine Weight |
6000 kg |
| Repeated Positioning Accuracy |
≤0.002 mm |
| Overall Dimensions |
Customized |
4. Accessories and Configuration
| Item |
Specification |
Quantity |
Notes |
| Double-end Grinding Machine |
MY7660 |
1 |
Main Unit |
| Grinding Machine Control Box |
MY7660 |
1 |
Included |
| Machine Foundation Pads |
200 × 100 × 80 mm |
6 |
|
| Adjustment Wrench |
55 mm |
1 |
For angle adjustments |
| Hexagonal Wrench Set |
≤20 mm |
1 set |
|
| Screwdrivers |
4-inch |
2 |
Cross and flat types |
| Grinding Wheels |
φ750 × 65 × 50 mm |
1 pair |
Mounted on machine |
| Dressing Tools |
φ10 × 35 mm |
2 |
Mounted on machine |
| Cooling Pipes |
Inner diameter φ20 mm |
6 m |
|
5. Delivery List
- Operation Manual: 1 copy
- Quality Certificate: 1 copy
- Servo Motor Manual: 1 copy
- PLC Manual: 1 copy
- Additional tools and accessories as per list