Yuhuan CNC Machine Tool Co., Ltd.

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YHMG7776 High-Precision CNC Vertical Double Disc Grinding Machine

The YHMG7776 high-precision CNC vertical double-sided grinding machine is a high-end equipment specially developed for the precise grinding needs of carbon ceramic/carbon-carbon brake discs in the field of new energy vehicles.This machine achieves single-clamping of the parts,completing the processing of two parallel end faces simultaneously,and possesses significant advantages such as high grinding precision,excellent surface roughness,and high production efficiency.

Keywords

Precision grinding, intelligent manufacturing technology, integrated solutions

Classification

CNC grinding machine series

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Typical Machining Parts

Equipment Highlights

Technical characters

HOST STRUCTURE CHARACTERISTICS

1.The machine adopts a vertical layout,with the upper and lower spindle components located inside the upper and lower housings,and the feeding components located at the front of the housing.The structure is compact,rigid,and easy to operate.

2.The upper and lower housings are connected using spherical hinge support connections.The entire machine is referenced to the grinding wheel,and the position accuracy of the upper grinding wheel is adjusted through the hinge support.The radial and axial run out of the upper and lower spindle flange faces is≤0.003mm.

3.The feeding component can be fed longitudinally in a horizontal direction as a whole.The moving feeding table is connected to the machine base through rigid rails and is driven by a servo+ball screw,which offers high rigidity and high feed accuracy.

4.The mobile feeding table is connected to the base with four pairs of spherical hinge supports,allowing adjustment of the position accuracy of the feeding turntable installation surface relative to the lower grinding wheel to be≤0.01,ensuring the positioning and processing accuracy of the workpiece.

5.Dual mechanical spindles (internally through grinding fluid),45KW frequency conversion motor+belt drive,with high power,stable power,and high reliability.

6.The spindle adopts a servo motor+worm gear pair+large diameter high-precision ball screw feed,with a repeatability of 0.003mm,and can withstand a static load of 180KN.

7.The main shaft bearings are selected with high-precision machine tool-specific bearings from FAG,featuring high rotational accuracy and high reliability.

8.The feed component adopts a servo motor+high-precision gear transmission,selects bearings from brands such as NSK or equivalent,ensuring high motion accuracy and reliability.

9.Reserved automation detection and loading/unloading interface.

Performance

No.	Key technical indicators		Unit	Parameter
1	Processed part dimensions	Outer Diameter	mm	≤φ500
2		Internal Diameter	mm	≥φ100
3		Thickness	mm	15-60
4	Cycle time		Minutes per item	15
5	Processing accuracy	Flatness	mm	0.02
6		Parallelism	mm	0.03
7		Peripheral to DTV	mm	0.008
8		Radial DTV	mm	0.03
9		Surface roughness	μm	Ra1.6
10		Coating Thickness Deviation	mm	0.1
11		The deviation of grinding amount between two working surfaces	mm	0.2
12	Upper and lower grinding wheels	Diameter	mm	φ760-φ800
13		Itinerary	mm	100/100
14		Rotational speed	rpm	50-960
15	Upper and lower grinding heads	Feed resolution	mm	0.001
16		Rotational speed	r/min	50-960
17		Spindle power	kw	2×45
18		Feed power	kw	2×3.5
19	Feeding table	Orbital velocity	rpm	5-10
20		Linear feed process	mm	0-120
21		Mobile speed	m/min	2-20
22	Workpiece	Rotational speed	rpm	10-150
23	Cooling filtration	Filtering precision	μm	≤10
24		Traffic	L/min	≥150
25		Water tank volume	L	≥1500