Device and process for local thinning electric spark machining on complicated shape sheet piece

A complex shape and local thinning technology, which is applied in the direction of electric processing equipment, accessory devices, metal processing equipment, etc., can solve problems such as deformation of thin plate parts, improve the efficiency of replacement, ensure processing accuracy and surface quality, and improve processing efficiency Effect

Inactive Publication Date: 2013-10-09
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides an EDM device and processing technology for local thinning of thin plate parts with complex shapes, which realizes high-precision processing of complex thin plate parts and solves the problem of deformation of thin plate parts during the thinning process

Method used

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  • Device and process for local thinning electric spark machining on complicated shape sheet piece
  • Device and process for local thinning electric spark machining on complicated shape sheet piece
  • Device and process for local thinning electric spark machining on complicated shape sheet piece

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Embodiment Construction

[0038] Please refer to figure 1 and figure 2 As shown, the EDM device for local thinning of complex-shaped thin plate parts of the present invention includes a reference element 1, a first screw 3, a second screw 4, a first hollowed out plate 5, a second hollowed out plate 7, a positioning pin 8 and a base 9 , use the first hollow plate 5 and the second hollow plate 7 to press the thin plate 6 in the middle, use the positioning pin 8 to position the three, clamp them with the second screw 4 to make the three a rigid body, pull out the positioning pin 8, Then use the positioning pin 8 to position the three components on the base 9, clamp them with the first screw 3, connect the electrode 2 with the reference element 1 and clamp it on the machine tool spindle (not shown).

[0039] Among them, the reference element 1 refers to a reference block that is always connected to the electrode from the electrode blank. By positioning the reference element and clamping it on the referen...

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Abstract

The invention discloses a device and process for local thinning electric spark machining on a complicated shape sheet piece, and belongs to the field of sheet piece machining. The device for local thinning electric spark machining on the complicated shape sheet piece comprises a reference element, a screw, two hollowed-out slabs, a positioning pin and a base. The device and process for local thinning electric spark machining on the complicated shape sheet piece are characterized in that a non-machined area of the sheet piece and a reinforcing rib are pressed and held by the upper hollowed-out slab and the lower hollowed-out slab; the hollowed-out slabs and the reinforcing rib form a rigid body after positioning and clamping, then the rigid body is positioned and clamped on the base, and an overall electrode is used for conducting thinning electric spark machining on the obverse side and the reverse side of the sheet piece in an alternate mode; finally, the reinforcing rib is removed to obtain the final element. The device and process for local thinning electric spark machining on the complicated shape sheet piece effectively solve the problem that the sheet piece deforms in the thinning machining process and improve the thinning machining accuracy of the sheet piece.

Description

technical field [0001] The invention relates to an electric discharge machining device and a processing technology for local thinning of complex-shaped thin-plate parts, which belong to the technical field of processing thin-plate and thin-wall parts. Background technique [0002] At present, both in the field of general machinery and in the field of aerospace, thin-plate and thin-walled parts are widely used. These parts usually have the following characteristics: thin wall, weak rigidity, and easy deformation during processing; high precision requirements, and the accuracy of key dimensions is IT5-IT2 level, the key shape and position accuracy is above level 5-3. [0003] Due to application reasons, the primary purpose of engineering design is to meet its physical indicators such as shape, thickness, precision and quality. Therefore, limited by the shape and quality, the strength of the parts can meet the requirements of use, but the stiffness index is often ignored or no...

Claims

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Application Information

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IPC IPC(8): B23H1/00B23H7/02B23H11/00
Inventor 郁子欣陈建宁杨桂珍周旭娇
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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