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Spindle executing device for electric discharge machining of non-rounded regular hexagonal hole and machining method

A technology of regular hexagon and actuator, applied in electric machining equipment, accessories, metal processing equipment, etc., can solve the problems of rounded corners, difficult to meet the expected machining requirements, difficult chip removal, etc., and achieve easy chip removal and lifting. Wear resistance and the effect of improving processing efficiency

Inactive Publication Date: 2019-10-29
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problems such as difficulty in chip removal when EDM machining regular hexagonal holes, rounded corners when EDM milling regular hexagonal holes, and difficulty in meeting expected processing requirements. The present invention provides an EDM without Spindle actuator and processing method for regular hexagonal holes with rounded corners

Method used

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  • Spindle executing device for electric discharge machining of non-rounded regular hexagonal hole and machining method
  • Spindle executing device for electric discharge machining of non-rounded regular hexagonal hole and machining method
  • Spindle executing device for electric discharge machining of non-rounded regular hexagonal hole and machining method

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specific Embodiment approach 1

[0022] Specific implementation mode one: see figure 1 According to this embodiment, a spindle actuator for electric discharge machining of a regular hexagonal hole without rounded corners, the device includes a support plate 1, a DC motor 2, a motor bracket 3, a universal coupling 4, and a five-sided Leroux Shaped cam 5, regular hexagonal sleeve 6, sharp angle electrode fixture 7;

[0023] Among them, the motor bracket 3 and the regular hexagonal sleeve 6 are coaxially fixed on the support plate 1, and the motor output shaft, the universal coupling 4, the Lelo pentagonal cam 5, and the sharp-angled electrode 7 are sequentially connected and installed coaxially. The Lolo pentagonal cam 5 is completely fitted and installed in the regular hexagonal sleeve. After the motor is energized, the main shaft is driven to rotate. Revolutionary movement around the mandrel of the regular hexagonal sleeve;

[0024] The pointed electrode 7 is a graphite electrode; the Lelo pentagonal cam 5...

specific Embodiment approach 2

[0028] Embodiment 2: The difference between this embodiment and the spindle actuator for electric discharge machining of regular hexagonal holes without rounded corners described in Embodiment 1 is that the Leroux pentagonal cam 5 and the sharp-angled electrode 7 adopt Threaded connection, which makes the connection more compact, but needs to process the threaded electrode.

specific Embodiment approach 3

[0029] Specific Embodiment 3: The difference between this embodiment and the spindle actuator for electric discharge machining of a regular hexagonal hole without rounded corners described in the first or second specific embodiment is that the Leroux pentagonal cam 5 and the regular hexagonal The edge-shaped sleeve 6 can adopt heat treatment methods such as carburizing and quenching or nitriding treatment to improve the surface hardness and wear resistance of the cam mechanism. Compared with the specific embodiment 1, it has the advantage of not requiring secondary processing, but the heat treatment process is relatively cumbersome.

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Abstract

The invention provides a spindle executing device for the electric discharge machining of a non-rounded regular hexagonal hole and a machining method and belongs to the field of electric discharge machining. The problems of poor etched product discharging effect, unstable electric discharge state and rounded corner machining during electric discharge forming machining are solved. A sharp angle electrode is manufactured by a slow wire feeding cutting machining method and mounted on a reuleaux pentagonal cam. When the reuleaux pentagonal cam makes rotation and revolution compound motion in a hexagonal sleeve, the sharp angle electrode makes rotation motion and makes revolution motion around a spindle of the regular hexagonal sleeve, and the compound motion path of the sharp angle electrode is a standard regular hexagon, so that a non-rounded regular hexagon is made through electric discharge machining. Due to the rotation and revolution motion of the sharp angle electrode, etched products produced in the electric discharge machining process can be brought out of machining gaps with the motion of the sharp angle electrode, the discharging of the etched products is facilitated, and themachining efficiency and the machining depth-diameter ratio of the regular hexagonal hole can be obviously increased. The method is mainly used for machining the non-rounded regular hexagonal hole.

Description

technical field [0001] The invention relates to the field of electric discharge machining, in particular to a spindle actuator for electric discharge machining regular hexagonal holes without rounded corners, and a processing method for machining regular hexagonal holes without rounded corners using the device. Background technique [0002] The regular hexagonal structure has stable stress and high space utilization rate. Using the same amount of materials for processing, the regular hexagonal structure is the most material-saving way to achieve the required performance requirements. Regular hexagonal holes have good structural properties, and are widely used in the layout design of tiny spatial structures and the connection of precision parts, such as micro-hexagonal cavity in MEMS microphones, hexagonal hole fit in precision connections, and micro-hexagonal holes in micro-filters. The tiny filter mesh and the honeycomb tube in the optical fiber feeder all adopt regular hex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23H1/00B23H9/14B23H11/00
CPCB23H1/00B23H9/14B23H11/00
Inventor 解宝成刘建国张汗阳
Owner HARBIN UNIV OF SCI & TECH
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