Abstract

An abrasive belt grinding center applicable to grinding and polishing of a whole profile of a blisk is provided, an X-axis feed mechanism, a Y-axis feed mechanism, a Z-axis feed mechanism, a B-axis rotation mechanism and a C-axis rotation mechanism constitute a grinding head feed mechanism, and a housing, a drum, a synchronous driven pulley, a synchronous belt, a synchronous driving pulley, and a grinding head rotation driving motor constitute a grinding head rotation mechanism. In the present application, two grinding heads are utilized to reasonably assign the machining angle and the feeding, and rough machining and fine machining can be both realized by one time of clamping, and the combination of six degrees of freedom in space is achieved by a short drive chain, and further the rigidities of a grinding head mechanism and a workpiece clamping mechanism are ensured.

IPC Classes  ?

• B24B 21/16 - Machines or devices using grinding or polishing beltsAccessories therefor for grinding other surfaces of particular shape
• B24B 21/18 - Accessories
• B24B 19/14 - Single purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
• B24B 21/00 - Machines or devices using grinding or polishing beltsAccessories therefor
• B24B 27/00 - Other grinding machines or devices
• B24B 41/02 - FramesBedsCarriages
• B23Q 1/48 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs and rotating pairs
• B23Q 1/62 - Movable or adjustable work or tool supports using particular mechanisms with sliding pairs only two sliding pairs only with perpendicular axes, e.g. cross-slides

Abstract

An abrasive belt grinding device is provided, a supporting plate passes through an inner cylinder, and is fixed to the inner cylinder, the inner cylinder is rotatably connected to an outer cylinder bracket, a winding reel and an unwinding reel are arranged side by side in a left-right direction at an upper end of the supporting plate, and are driven by respective first servo motors, one end of the abrasive belt is wound in a belt groove of the winding reel, and another end of the abrasive belt is wound over the first transition wheel, the first tension pulley, the third transition wheel, the fifth transition wheel, the seventh transition wheel, the contact wheel, the eighth transition wheel, the sixth transition wheel, the fourth transition wheel, the second tension pulley, and the second transition wheel, and is finally wound in a belt groove of the unwinding reel.

IPC Classes  ?

• B24B 21/16 - Machines or devices using grinding or polishing beltsAccessories therefor for grinding other surfaces of particular shape
• B24B 21/20 - Accessories for controlling or adjusting the tracking or the tension of the grinding belt

Abstract

An abrasive belt grinding center applicable to grinding and polishing machining of the overall profile of a blisk. An X-axis feed mechanism, a Y-axis feed mechanism, a Z-axis feed mechanism, a B-axis rotating mechanism, and a C-axis rotating mechanism constitute a feed mechanism of each grinding head. A housing, a rotating cylinder, a driven synchronous pulley, a synchronous belt, a driving synchronous pulley, and a grinding head rotating driving motor constitute a grinding head rotating mechanism. According to the present invention, machining angles and feeding are reasonably assigned by means of two grinding heads, rough machining and finishing can be implemented simultaneously by one time of clamping, and six degrees of freedom of space can be combined by means of a short transmission chain; meanwhile, the rigidity of grinding head mechanisms and a workpiece clamping mechanism are ensured. Grinding and polishing machining of the overall profile of a blisk can be implemented by means of the combination of the double grinding heads and a robot. Contact wheels and abrasive belts of the grinding head mechanisms can cut into narrow gaps between blades of a blisk; the machining precision of a complex curved surface and the quality of the profile can be ensured, the machining efficiency can be significantly improved, and the management and production costs can be reduced.

IPC Classes  ?

• B24B 21/16 - Machines or devices using grinding or polishing beltsAccessories therefor for grinding other surfaces of particular shape
• B24B 21/18 - Accessories

Abstract

An abrasive belt grinding device for profile precision consistency. A support plate passes through an inner cylinder and fixed to the inner cylinder; the inner cylinder is rotatably connected with an outer cylinder support; a winding wheel and an unwinding wheel are provided side by side at the upper end of the support plate; the winding wheel and the unwinding wheel are driven by respective first servo motors; one end of an abrasive belt is wound in the groove of the winding wheel, and the other end of the abrasive belt passes by a first transition wheel, a first tension wheel, a third transition wheel, a fifth transition wheel, a seventh transition wheel, a contact wheel, an eighth transition wheel, a sixth transition wheel, a fourth transition wheel, a second tension wheel, and a second transition wheel, and is finally wound in the groove of the unwinding wheel. The present invention can switch the winding wheel and the unwinding wheel between winding and unwinding by means of forward and reverse rotating of the servo motors, so that the abrasive belt can perform grinding in a reciprocating manner. Torque control can be performed on the tension force of the abrasive belt by the motors, so that the tension force can be kept constant, the precision and surface quality of the ground workpiece can be improved, and faults, such as belt breakage, during grinding can be reduced.

IPC Classes  ?

• B24B 21/16 - Machines or devices using grinding or polishing beltsAccessories therefor for grinding other surfaces of particular shape
• B24B 21/20 - Accessories for controlling or adjusting the tracking or the tension of the grinding belt