Gas-liquid balancing device for vertical ram milling head

A column and gantry milling machine technology, applied in the hydraulic field, can solve the problems of poor stability of the hydraulic balance system, and achieve the effects of low procurement cost and use cost, avoiding mechanical accidents and small temperature rise.

Active Publication Date: 2013-09-18
JIER MACHINE TOOL GROUP
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  • Abstract
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Problems solved by technology

[0009] In addition to the poor stability of the hydraulic balance system due to the

Method used

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  • Gas-liquid balancing device for vertical ram milling head

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[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The following descriptions are only exemplary and do not limit the protection scope of the present invention.

[0026] Reference attached figure 1 , a gas-liquid balance device for a vertical ram milling head, comprising two balance cylinders 7, an accumulator 4 and an overflow throttling structure; the two balance cylinders 7 are respectively arranged on both sides of the ram milling head 6; The accumulator 4 is simultaneously connected to the oil outlet pipes 16 of the two balance cylinders 7 through a main pipeline 15 and a three-way connecting mechanism 17, and the accumulator 4 is provided with an oil drain branch 13 with a pressure gauge 3. The oil drain branch The outlet of the road 13 is connected to the oil tank 14; the overflow throttling structure 5 includes a safety valve 10, a first control valve 11 and a second control valve...

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Abstract

The invention provides a gas-liquid balancing device for a vertical ram milling head, which can realize balance of a machine ram. The invention adopts the following technical scheme that the gas-liquid balancing device for the vertical ram milling head comprises two balancing cylinders, an energy accumulator and an overflowing and throttling structure; the two balancing cylinders are respectively arranged on both sides of the ram milling head; the energy accumulator is simultaneously connected with oil outlet pipelines of the two balancing cylinders through a main pipeline by a three-way connecting mechanism; the energy accumulator is provided with an oil drainage branch circuit; the overflowing and throttling structure comprises a safety valve, a first control valve and a second control valve; the safety valve and the first control valve are arranged on the oil drainage branch circuit; and the second control valve is arranged on the main pipeline.

Description

technical field [0001] The invention relates to the field of hydraulic technology, in particular to a gas-liquid balance device for a milling head of a vertical ram, which is suitable for hydraulic balance of a vertical ram of a large-scale high-speed five-axis linkage numerical control machine tool. Background technique [0002] The vertical ram milling head of the heavy-duty CNC gantry boring and milling machine usually needs to be balanced and counterweighted. The current common balance principle is to rely on the motor to drive the variable plunger pump to increase the system pipeline pressure, control the system working pressure through the overflow valve, and maintain the pressure with the accumulator. In the reverse direction, the hydraulic control check valve is used to discharge oil and unload. This balance principle has the following disadvantages in practical application: [0003] After the machine tool stops, the hydraulic oil in the balance cylinder gradually l...

Claims

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Application Information

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IPC IPC(8): B23Q11/00F15B1/02
Inventor 孙建宏史振文刘健
Owner JIER MACHINE TOOL GROUP
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