Spray-suction type hole machining method

A hole processing method and hole processing technology are applied in metal processing equipment, metal processing machinery parts, manufacturing tools, etc., and can solve problems such as difficulty in chip removal

CN112589153APending Publication Date: 2021-04-02ZHONGBEI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2021-04-02

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Abstract

The invention belongs to the field of hole machining, and particularly relates to a spray-suction type hole machining method which is used for improving hole machining capacity and quality. One part of cutting fluid flows to a cutting edge part, and the other part of the cutting fluid is obliquely sprayed backwards. A plurality of wedge-shaped protrusions are arranged on a drill bit along the circumference, the wedge-shaped protrusions and the inner wall of a machined deep hole form a wedge-shaped space, and a wedge-shaped oil film is formed when oil flows through the wedge-shaped space. The distance between the wedge-shaped protrusions and the inner wall of the machined deep hole is very small or equal to zero. Self-centering force of the drill bit is finely adjusted through an adjustingcushion block, a positioning piece and a screw rod as required. The length of the drill bit is larger than that of a drill bit of an existing corresponding spray-suction drill. The machining method comprises the steps that firstly, a spray-suction drill system and the drill bit thereof are assembled; secondly, the spray-suction drill system, the drill bit and a workpiece are installed on a machinetool; and thirdly, the drill bit is rotated, and the cutting fluid is brought into the wedge-shaped space. The force of the liquid is large, and estimation is convenient. The drill bit is high in self-centering precision and good in self-correcting effect. The precision of a cutter system is easy to guarantee, and high-speed rotation can be achieved.
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Description

Technical field

[0001] The present invention belongs to the field of holes, and more particularly to a vacuum hole processing method.Background technique

[0002] When machining is machined compared to the outer surface, the tandem is difficult. The flow of the liquid can be discharged from the flow of liquid. Increase the pressure differential of the liquid, improve the dragging effect.

[0003] The bearing lubrication form includes dynamic pressure lubrication and static pressure lubrication. The static pressure lubrication uses the oil pump to supply high pressure liquid to separate the journal from the bearing wall. The working principle of the dynamic pressure sliding bearing is different from the static pressure lubrication, and the principle has an inspiration for deep hole processing. When the dynamic pressure is lubricated, the journal rotates the lubricating oil into the bearing friction surface, and when the viscosity of the lubricants, when the sufficiently high relative rotation ...

Examples

Embodiment Construction

[0045]The embodiments of the present invention will be further described below, and the specific embodiments are not limited to the present invention.

[0046]1. The wedge projection is a connection structure or an integral structure.

[0047]2. The liquid force is adjusted by mechanical, or electricity, or magnetic.

[0048]3. The wedge profile of the wedge-shaped convex portion is a circle, or a combination of the Aquiimed spiral surface, a line, other curves, or the above line.

[0049]4, the blade is a symmetrical arrangement or asymmetric arrangement; the cutting liquid is oil or other liquid, filtered through the mesh, or filtration, or magnetic method.

[0050]5, wedge-shaped projections or adjustment pads are in contact with the positioning parts.

[0051]6, the material and heat treatment requirements of the wedge-shaped projection require the same or different materials from the wedge-shaped projection body; the top of the wedge-shaped projection has a coating or a cemented carbide or no co...