Balance compensation structure and mode for three hanging points of spindle box

A technology of balance compensation and spindle box, which is applied to other manufacturing equipment/tools, parts of boring machine/drilling machine, drilling/drilling equipment, etc., can solve problems such as headstock tilt, to ensure machining accuracy, ensure movement accuracy, Craft and Control Simple Effects
CN102248183AActive Publication Date: 2011-11-23WUHAN HEAVY MACHINE TOOL GRP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
WUHAN HEAVY MACHINE TOOL GRP
Publication Date
2011-11-23

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Abstract

The invention belongs to a balance compensation structure and a balance compensation mode suitable for a spindle box of a numerical control milling and boring machine with a ram. The balance compensation structure mainly comprises a balance and tilt compensation unit and a spindle box three-hanging-point mechanism, wherein the spindle box is provided with front, middle and rear hanging points; the three hanging points are connected with the gravity center of a balance weight through a connecting rope and a pulley group; compensation oil cylinders are arranged at the front and rear hanging points; and an oil circuit control device consisting of an electro-hydraulic proportional valve, a hydraulic control one-way valve and an electromagnetic reversing valve is arranged in front of each compensation oil cylinder. The balance compensation mode is that: a numerical control system measures the working condition of the ram in real time, and oil pressure in each oil cylinder is controlled by the electro-hydraulic proportional valve. By the balance compensation structure and the balance compensation mode, the inclination of the spindle box can be corrected in real time, the structure, the process and control are simple, and the movement accuracy of the ram of the milling and boring machine and the machining accuracy of a workpiece are ensured.
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Description

[0001] Field:

[0002] The invention belongs to a spindle box balance compensation structure and a balance compensation method, and is especially suitable for a numerically controlled floor type boring machine with a ram. Background technique:

[0003] In the processing of modern large-scale machine tools, the movement of the ram of the large-scale machine tool is of great significance to the processing, such as the movement of the ram of the floor milling and boring machine, mainly because the end surface of the ram has the function of installing accessories, and the movement of the ram is equivalent to the movement of the entire accessory. It can make the accessories better approach the workpiece or go deep into the workpiece. Even if the accessories are not installed, only using the ram to move also expands the processing range of the machine tool. Due to the needs of the above processes, the movement stroke of the ram of the milling and boring machine is required to be lar...

Claims

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