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A grinding device for the outer peripheral surface of a cylindrical workpiece

A technology for grinding devices and peripheral surfaces, applied in the direction of abrasive feeding devices, abrasives, manufacturing tools, etc., can solve problems such as low processing efficiency, potential safety hazards, abrasive waste, etc., to improve processing efficiency, improve safety, and reduce costs Effect

Active Publication Date: 2017-12-26
无锡鸿源轴承制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. Jet polishing needs to use a high-pressure liquid pump to form a high-speed jet, which is costly; the high-speed jet is formed directly in the nozzle, causing the nozzle to be easily worn; the high-speed jet sputters heavily, and the abrasive waste is serious
[0007] 2. Abrasive flow processing usually requires a more complex hydraulic system to realize the clamping of the workpiece and the action of the pushing cylinder, which is costly and has certain safety hazards
[0008] 3. Whether it is jet polishing or abrasive flow processing, the same equipment can only polish a certain part of a single workpiece at the same time, and the processing efficiency is low

Method used

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  • A grinding device for the outer peripheral surface of a cylindrical workpiece
  • A grinding device for the outer peripheral surface of a cylindrical workpiece
  • A grinding device for the outer peripheral surface of a cylindrical workpiece

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0037] see Figure 1~5 , the grinding chamber 5 of the grinding device is a rectangular box, the top of which is covered with a case cover 5-1, and the walls of the grinding chamber 5 two ends are respectively provided with a grinding liquid inlet 5-2 and a grinding liquid outlet 5-3. In the grinding chamber 5, a positioning plate 6 parallel to the case cover 5-1 is provided near the position of the case cover 5-1, and the positioning plate 6 is supported on a shoulder provided on the inner wall of the grinding chamber 5; The space is the space through which the grinding fluid flows, and the dimensions of the space are: width * height (distance from the bottom of the grinding chamber to the lower side of the positioning plate) = 600mm * 400mm (hydraulic diameter D is 480mm), length = 1600mm.

[0038] see Figure 1~5 and combine Image 6 A vortex generating column 7 perpendicular to the positioning plate 6 is provided at a position 300 mm apart from the grinding liquid inlet ...

example 2

[0050] see Figure 9 In this example, the Reynolds number of the grinding chamber 5 flowing through the grinding fluid is designed to be 60, and the positions of the two groups of workpiece positioning pins 8 can be represented by the following coordinates: Ⅰ (570,130), Ⅱ (920,190), Ⅲ (1290, 215), Ⅳ (740, -180), V (1110, -200), VI (1480, -210); in this example, the implementation methods other than the above are the same as in Example 1.

[0051] The numerical simulation software Fluent16 is used to analyze the grinding liquid fluid in order to verify the effect of the grinding device in this example:

[0052] The calculation conditions are: a steady-state laminar flow model, input the density and dynamic viscosity of the abrasive fluid, the momentum item of the flow equation is discretized by the second-order upwind method, the pressure item is discretized by the standard format, and the SIMPLE algorithm is used to solve it, and other settings are defaulted. The outer diamet...

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PUM

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Abstract

The invention discloses a grinding device for the peripheral surfaces of cylindrical workpieces. The grinding device comprises a cuboid grinding chamber consisting of a box cover and a box body, wherein a grinding fluid inlet and a grinding fluid outlet are separately formed in the two ends of the grinding chamber; a positioning plate parallel with the box cover is arranged in the grinding chamber, and a grinding fluid flowing space is formed below the positioning plate; a vortex generating column and workpiece positioning pins vertically and downwards penetrate through the positioning plate, the number of the workpiece positioning pins is an even integer smaller than or equal to six, and the upper end of each workpiece positioning pin is connected with a motor positioned on the upper surface of the positioning plate; the profile passing the central line in the length direction of the positioning plate is a symmetry plane, and the axis of the vortex generating column passes the symmetry plane and is positioned at the grinding fluid inlet; and the same number of workpiece positioning pins are distributed on the two sides of the symmetry plane. The grinding device can simultaneously grind and polish a plurality of workpieces and greatly improves the processing efficiency.

Description

technical field [0001] The invention relates to a device for grinding or polishing, in particular to a special device for special grinding. The device utilizes the Karman vortex street principle to enhance fluidity abrasives to grind workpieces. Background technique [0002] Grinding and polishing the workpiece surface with flowing abrasives is a new finishing method. There are two common methods, jet polishing and abrasive flow machining. [0003] Injection polishing is to use the polishing liquid mixed with fine abrasive particles sprayed out at high speed from the small hole of the nozzle to act on the surface of the workpiece. The microscopic uneven materials are removed through the high-speed collision and shearing of the abrasive particles. By controlling the pressure and angle of the polishing liquid when spraying The polishing process that quantitatively corrects the surface roughness of the workpiece through process parameters such as injection time and injection ti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24C3/32B24C7/00
CPCB24C3/32B24C7/0007
Inventor 江帆
Owner 无锡鸿源轴承制造有限公司