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Precise finishing method of large abrasive grain diamond grinding wheel

A diamond grinding wheel and diamond roller technology, which is applied in the field of diamond grinding wheel processing, can solve the problems of high cost and low efficiency, improve the surface quality of workpieces, reduce radial rotation errors and axial height gradient differences, and efficiently and precisely process surfaces Effect

Inactive Publication Date: 2012-11-14
HARBIN INST OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a method for precision dressing of large abrasive diamond grinding wheels

Method used

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  • Precise finishing method of large abrasive grain diamond grinding wheel
  • Precise finishing method of large abrasive grain diamond grinding wheel
  • Precise finishing method of large abrasive grain diamond grinding wheel

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specific Embodiment approach 1

[0010] Specific implementation mode one: combine Figure 1-Figure 5 Describe this embodiment, the described method of this embodiment comprises the following steps: Step 1, install large-grain diamond parallel grinding wheel 1 on the plane precision grinding machine, place square Cr12 steel block 2 on the vertical magnetic workbench, through numerical control program Control the large-abrasive diamond parallel grinding wheel 1 to surface grind the Cr12 steel block 2 in the way of transverse feed grinding, and measure the rotation error of the large-abrasive diamond grinding wheel until the rotation error value is less than 10 μm;

[0011] During the dressing with Cr12 steel block 2, due to the dry grinding method and the graphite and iron filings generated during the dressing process, the large abrasive grain diamond parallel grinding wheel 1 is slightly blocked, which accelerates the heat accumulation and catalyzes the diamond grinding process. The wear of the grains effectiv...

specific Embodiment approach 2

[0014] Specific implementation mode two: combination figure 1 Illustrate present embodiment, the rotating speed of large abrasive grain diamond grinding wheel in present embodiment step 1 is 1500-2000r / min, longitudinal feed speed is 800-1200mm / min, and each lateral feed is 2-5mm (the feed The amount must be less than the width of the abrasive grain layer of the grinding wheel). Other implementation steps are the same as those in the first embodiment. Other implementation steps are the same as those in the first embodiment.

specific Embodiment approach 3

[0015] Specific implementation mode three: combination figure 1 This embodiment will be described. In Step 1 of this embodiment, when the large abrasive diamond parallel grinding wheel 1 is clogged, it is sharpened with a whetstone. Other implementation steps are the same as those in the first embodiment.

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Abstract

A precise finishing method of a large abrasive grain diamond grinding wheel relates to processing methods of diamond grinding wheels. The method solves the conventional problem that the conventional method for precisely processing hard and brittle materials is low in efficiency and high in cost. The method comprises the following steps: step 1. placing a square Cr12 steel bloom on a longitudinal magnetic worktable, and controlling a large abrasive grain diamond parallel grinding wheel to carry out plane grinding machining on the Cr12 steel bloom in a transverse feed grinding manner through a numerical control program; and step 2. clamping a finishing shaft with a cup-shaped diamond roller on a clamp fixture, absorbing on the magnetic worktable of a machine tool, and controlling and adjusting the rotating speed of the cup-shaped diamond roller to be 1200-1800r/min by using a frequency converter in a finishing system through the relative motion of a cup-shaped finishing roller and the large abrasive grain diamond parallel grinding wheel 1. The method is used for the precise finishing of the large abrasive grain diamond grinding wheel.

Description

technical field [0001] The invention relates to a diamond grinding wheel processing method. Background technique [0002] At present, in the processing of hard and brittle materials, most of them first use the rough machining method with high processing efficiency, then use the semi-finishing method with better processing surface, and finally use fine-grained or granular grinding wheels for precision / ultra-precision machining . In this way, two to three processes are used continuously for processing, and different grinding wheels are replaced in each process, resulting in high processing costs and low overall grinding efficiency. Moreover, the chip space is very small when the fine-grained / micro-particle grinding wheel is processed, and more particles will fall off, which may not meet the requirements of processing accuracy. Moreover, the irregular arrangement and aggregation of abrasive grains on the surface of the grinding wheel cause periodic dressing, which makes it di...

Claims

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Application Information

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IPC IPC(8): B24B53/06
Inventor 朱红赵清亮赵玲玲郭兵姜涛曹国友孙国燕韩帅
Owner HARBIN INST OF TECH