Electric machining device and method for small deep holes

A technology of deep and small holes and electric processing, which is applied in the direction of electric processing equipment, accessory devices, metal processing equipment, etc., can solve problems such as easy vibration, deep and small holes are easy to deflect, and poor rigidity, so as to improve rigidity and promote discharge Effect

Inactive Publication Date: 2019-08-30
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The following difficulties exist in deep and small hole electric machining: the machining process is carried out in a relatively closed space, and it is difficult to discharge the heat generated in the machining gap and the processed products dur

Method used

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  • Electric machining device and method for small deep holes
  • Electric machining device and method for small deep holes
  • Electric machining device and method for small deep holes

Examples

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Example Embodiment

[0016] Such as figure 1 Shown is a schematic diagram of a deep small hole electrical machining device. The tube electrode clamping and driving device (6) is installed on the feeding device (5), and the feeding device (5) is connected to the control system (11). The feeding movement of the tube electrode (8), and the tube electrode (8) is installed on the tube electrode clamping and driving device (6), so that through the feeding device (5) and the tube electrode clamping and driving device (6) The tube electrode (8) can be rotated or fed, or the tube electrode (8) can be rotated and fed simultaneously. The tube electrode clamping and driving device (6) is connected with the working fluid circulation system (12) and the control system (11). The working fluid circulation system (12) provides high-pressure working fluid to ensure that the working fluid and processed products can flow out of the workpiece smoothly ( 9) Processing port. Therefore, the stability during the feeding p...

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Abstract

The invention provides an electric machining device and method for small deep holes and belongs to the field of special machining. The electric machining method is characterized in that electric machining of the small deep holes is carried out by utilizing a tubular electrode with a micropore structure opened in a side face close to a machining end; working fluid is sprayed out from an outlet of the machining end of the tubular electrode and the micropore structure close to a side wall of the machining end, and then enters an end face machining gap and a side wall machining gap to realize regulation and control on a flow field of a machining process; and a rotary indexing device is used for adjusting an angle among the tubular electrode, a machined workpiece and the horizontal plane, so that a gravity field of the machining process is regulated and controlled, the flowing state of a machined product in the machining gap is changed and the discharging of the machined product in the machining gap is promoted. The machining device comprises a connection plate, a feeding device, a tubular electrode clamping and driving device, a guide device, the tubular electrode, the workpiece, a chuck, a workpiece rotary driving and clamping device, a machine tool base, a machine tool stand column and the rotary indexing device. The electric machining device and method for the small deep holes have significance in the aspects of effectively promoting the discharging of the machined product in the machining gap and ensuring the machining stability.

Description

technical field [0001] The invention relates to a device and method for electric processing of deep and small holes, belonging to the field of special processing. Background technique [0002] Deep and small holes are important structures that are widely used in core components in the fields of aerospace, precision instruments, and mechanical equipment, such as air film cooling holes in aeroengine blades, die holes in metal wire drawing dies, and fine and deep holes in tire molds. The group of holes and the engine fuel injector are both deep and small hole structures. These deep and small hole structures have a small diameter (φ0.3-2mm) and a large depth-to-diameter ratio (40-150), and the parts used are generally difficult-to-machine materials with high strength, high hardness and toughness. [0003] The processing of deep and small holes has always been a technical problem, especially the processing of deep and small holes with a large depth-to-diameter ratio, high precis...

Claims

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Application Information

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IPC IPC(8): B23H9/14B23H1/10B23H1/04B23H11/00
CPCB23H1/04B23H1/10B23H9/14B23H11/003
Inventor 黄绍服丁亮亮李君
Owner ANHUI UNIV OF SCI & TECH
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