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Micro-feeding device for hydraulic boring tool and boring lathe with micro-feeding device

A hydraulic and knife device technology, which is applied in the direction of feeding device, automatic control device, boring machine/drilling machine parts, etc., can solve the problems of limited precision, poor knife-engaging rigidity, and many transmission links, so as to improve control accuracy, The effect of high precision and simplified mechanical structure

Inactive Publication Date: 2015-05-27
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing domestic mechanical mechanism of "longitudinal stepping motor + lever + push rod" ("special-shaped pin hole boring device (patent number: ZL98112446.1)") has many transmission links and poor rigidity of the knife. The accuracy is limited; the hydraulic deformation represented by Japan NT Company in the world controls the pressure through the servo valve, and the specially designed elastic deformation mechanism realizes the displacement compensation of the tool. The requirements are harsh and the use is greatly restricted

Method used

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  • Micro-feeding device for hydraulic boring tool and boring lathe with micro-feeding device
  • Micro-feeding device for hydraulic boring tool and boring lathe with micro-feeding device
  • Micro-feeding device for hydraulic boring tool and boring lathe with micro-feeding device

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Embodiment Construction

[0030] A new type of boring machine, its structure includes: machine bed 1, automatic lubrication device 2, tool compensation drive device 3, rotary joint 4, belt pulley 5, precision hydrostatic boring head 6, pressure gauge 7, elastic deformation device 8, knife Rod 9, workpiece clamping mechanism 10, workpiece positioning mechanism 11, numerical control device 12, longitudinal moving slide table 13 adopting linear guide rail, longitudinal servo drive motor 14;

[0031]The spindle system includes: a spindle box 16, a pressure oil pipe 17, a spindle base 20, and an elastic deformation body 18; the spindle box is installed on a spindle base, and a pressure oil pipe connected to a hydraulic oil chamber is arranged in the spindle box. The other end of the oil pipe communicates with the oil cavity in the elastic deformation body, and the elastic deformation body drives the movement of the knife rod.

[0032] The elastic deformation body 18 includes a power unit fixed part 22, a po...

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Abstract

The invention discloses a micro-feeding device for a hydraulic boring tool and a boring lathe with the micro-feeding device. A servo motor, a spring, hydraulic parts and an elastic deformation body are adopted, the servo motor is controlled to rotate to enable a sliding platform to move and compress the spring, the spring is deformed to generate pressure acting on a hydraulic oil cavity, and hydraulic oil obtains certain pressure to act on a piston component in the elastic deformation body; a piston drives the elastic deformation body of a four-link structure to translate to realize the radial displacement compensation of the boring tool under the action of the hydraulic oil. According to the micro-feeding device and the boring lathe with the same, the characteristics of a mechanical tool compensation device and a hydraulic servo tool compensation device are combined, and control over the radial displacement of the tool is converted into control over the displacement of the servo motor, so that the micro-feeding device and the boring lathe with the same have the characteristics of high accuracy, simple structure, easiness in control and maintenance, and the like.

Description

technical field [0001] The invention relates to a novel hydraulic boring tool micro-displacement compensation driving device, which can be used for tool wear compensation and adjustment of boring diameter during the boring process, and can also be used for boring special-shaped pin holes of pistons. Background technique [0002] The existing domestic mechanical mechanism of "longitudinal stepping motor + lever + push rod" ("special-shaped pin hole boring device (patent number: ZL98112446.1)") has many transmission links and poor rigidity of the knife. The accuracy is limited; the hydraulic deformation represented by Japan NT Company in the world controls the pressure through the servo valve, and the specially designed elastic deformation mechanism realizes the displacement compensation of the tool. The requirements are harsh and the use is greatly restricted. Invention content: [0003] In order to solve the defects in the prior art, the present invention provides a hydra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B41/04B23B47/00B23Q23/00
CPCB23B41/00B23B41/04B23Q5/36B23Q5/40B23Q15/22
Inventor 翟鹏张洪洋王春阳秦磊张琨肖博涵贺凯刘维娟
Owner SHANDONG UNIV
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