Rotary polishing device and method for blind hole polishing

Abstract

The invention discloses a rotary polishing device and method for blind hole polishing. The rotary polishing device comprises a workbench, a movable positioning assembly, a flow pass assembly and a rotary clamping assembly. The movable positioning assembly comprises a horizontal module mounting rack, a horizontal straight line module, a horizontal module driving motor, a vertical straight line module and a vertical module driving motor. The rotary clamping assembly comprises a rotary motor, a motor mounting base, a bearing, a supporting block, an auxiliary clamping head and a vertical mountingbase. The flow pass assembly comprises a main clamping head, a rotary joint fixing base, a flow pass fixing plate, a sliding rail connecting plate, an extraction opening check valve, a gas-liquid abrasive particle flow joint, an abrasive particle flow inlet valve, an air pressure opening check valve, a flow pass joint, a flange-type rotating joint and a main clamping end O ring. By adoption of therotary polishing device and method for blind hole polishing, blind holes of blind hole type workpieces can be polished, the rotary motor can be used for driving the workpieces to be machined to rotate in the machining process, abrasive particle flow can impact the inner walls of the blind holes in a more unordered mode during machining, and machining efficiency of the blind holes is improved.

Description

technical field [0001] The present invention relates to the field of abrasive flow polishing, more particularly, to a rotary polishing device and method for blind hole polishing, which utilizes periodic positive and negative pressures to make abrasive flow impact a rotating workpiece. Background technique [0002] 3D printing technology is also called additive manufacturing technology, which is an advanced manufacturing technology called rapid prototyping in China. The manufacture of three-dimensional solids is transformed into the accumulation of two-dimensional layers and the continuous superposition along the forming direction, and finally the manufacture of three-dimensional solids is realized. With the increasing use of 3D printing technology, more and more blind hole products are produced using 3D printing technology. Compared with through holes, blind holes refer to non-penetrating holes, which are widely used in daily life and industrial production. At the same time...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing polishing method cannot polish the blind hole printed by 3D printing technology, and proposes a rotary polishing device and method for blind hole polishing, by using periodic positive and negative The pressure makes the abrasive grain flow impact the blind hole of the workpiece, and the blind hole type workpiece can be polished. The blind hole of the workpiece to be processed is in a negative pressure state by pumping air, so that the abrasive grain flow can enter the blind hole more smoothly. During the polishing process In the process, mechanical rotation and abrasive flow are used to repeatedly impact the blind hole of the workpiece, and the blind hole of the workpiece to be processed is subjected to micro-cutting and polishing

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