Anti-vibration tool rest with adjustable cutter bar extended length for deep hole turning

A deep-hole turning and tool holder technology, applied in the direction of tool holder, etc., can solve the problems of cutting chatter, tool change, efficiency tool setting error, and the inability to automatically adjust the overhang length of the tool holder, so as to improve processing efficiency and ensure consistency. , to facilitate the effect of cutting chatter

Inactive Publication Date: 2016-01-20
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose an anti-vibration tool post with adjustable overhang length of the tool bar for deep hole turning, which solves the problems in the prior art that the overhang length of the tool bar cannot be automatically adjusted, the phenomenon of cutting chatter is serious, and the tool change affects the efficiency and is easy. Introduce the problem of tool setting error

Method used

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  • Anti-vibration tool rest with adjustable cutter bar extended length for deep hole turning
  • Anti-vibration tool rest with adjustable cutter bar extended length for deep hole turning
  • Anti-vibration tool rest with adjustable cutter bar extended length for deep hole turning

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Experimental program
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Effect test

Embodiment 1

[0024] An anti-vibration tool holder with adjustable length of tool bar for deep hole turning of the present invention comprises a combined blade 1, a tool bar, a tool bar support 3 and a power drive unit; end, the other end of the knife rod passes through the knife rod groove 302 of the knife rod support 3, and the said knife rod realizes expansion and contraction in the length direction through the power drive unit.

[0025] See attached figure 1 , attached figure 2 And attached image 3 , the cutter bar is a rack-type cutter bar 2, and the power drive unit includes a stepper motor 4, a motor base 5 and a drive gear 6; the motor base 5 is connected to the cutter bar support 3, and the The driving gear 6 is arranged inside the motor base 5, the driving gear 6 is engaged with the rack on the rack type knife bar 2, the stepping motor 4 is fixed on the motor base 5, the The output shaft of the stepping motor 4 is fixedly connected with the drive gear 6 .

[0026] The output...

Embodiment 2

[0032] The difference between this embodiment and the first embodiment is that the adjustment of the suspension length of the tool rod of the anti-vibration tool post is realized in the form of a screw guide.

Embodiment 3

[0034] See attached Figure 7 , The difference between this embodiment and Embodiment 1 is that the adjustment of the suspension length of the tool bar of the anti-vibration tool post is realized in the form of a differential hydraulic cylinder 13 .

[0035] The cutter rod is a hydraulic rod type cutter rod 11, and both the hydraulic rod type cutter rod 11 and the differential hydraulic cylinder 13 are installed on the hydraulic cylinder base 12 fixed on the servo tool holder of the machine tool, and the differential pressure is controlled by the servo valve. Type hydraulic cylinder 13 drives hydraulic rod type knife bar 11 telescopic, can realize the adjustment of knife bar suspension length equally.

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Abstract

The invention discloses an anti-vibration tool rest with adjustable cutter bar extended length for deep hole turning, belongs to the technical field of mechanical processing, and aims to solve the problems that in the prior art, cutter bar extended length cannot be automatically regulated, a cutting chattering phenomenon is severe, efficiency is affected by tool changing and tool setting errors are easily caused. The anti-vibration tool rest with adjustable cutter bar extended length for deep hole turning comprises a combined type blade, a cutter bar, a cutter bar supporting base and a power drive unit, wherein the blade is arranged at one end part of the cutter bar; the other end of the cutter bar penetrates through a cutter bar slot of the cutter bar supporting base; and the cutter bar realizes stretching out and drawing back by virtue of the power drive unit. According to the anti-vibration tool rest with adjustable cutter bar extended length for deep hole turning disclosed by the invention, the principle of restraining cutting chattering is mainly realized by regulating extended length of the cutter bar, and improving dynamic rigidity of the cutter bar under the same cutting condition. For a hole with greater depth, a mode of gradually increasing extended length distribution of the cutter bar to process to the final depth is adopted, so that the cutting chattering phenomenon generated when directly adopting cutter bar extended length bigger than or equal to hole depth can be avoided.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, and in particular relates to an anti-vibration tool holder with adjustable suspension length of a tool bar for deep hole turning. Background technique [0002] CNC lathes are generally used for processing inner holes with larger diameters. In the process of deep hole processing, slender inner circle turning tools or boring tools with relatively large long diameters are usually used. As the hole depth increases, the length of the tool bar must be lengthened. The length can meet the processing depth. If the tool holder with sufficient length is directly used, the overhang length of the tool holder after installation is relatively large, and the dynamic stiffness is low, which will easily lead to cutting chatter, which makes the processing quality of the inner circle surface from the beginning of cutting to the final depth. Unable to meet processing requirements. However, if the shor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B29/10
CPCB23B29/10
Inventor 崔涛葛成隋永新杨怀江
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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