In-situ trimming method for shaping abrasive wheel

A form grinding and grinding wheel correction technology, which is applied to the parts of grinding machine tools, grinding/polishing equipment, abrasive surface adjustment devices, etc., can solve the problem of affecting processing accuracy, difficulty in accurately grasping the time of grinding wheel dressing, long processing time, etc. problem, achieve the effect of improving grinding accuracy and reducing invalid processing time

Inactive Publication Date: 2003-11-05
UNIV OF SHANGHAI FOR SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the lack of on-line measurement technology at present, the grinding wheel dressing generally adopts offline measurement of the workpiece, and the dressing of the grinding wheel is controlled according to the measurement results. m

Method used

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  • In-situ trimming method for shaping abrasive wheel
  • In-situ trimming method for shaping abrasive wheel
  • In-situ trimming method for shaping abrasive wheel

Examples

Experimental program
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Embodiment Construction

[0023] Depend on figure 1 As shown, the grinding wheel online dresser for grinding machine includes an online measuring head 2 for the processed curve shape of the workpiece and a measurement data processor. The measuring head 2 and the diamond roller 4 are connected to the X-axis servo motor 5 and the Z-axis servo motor 6 respectively. The measuring head adopts a lever-type inductive probe head.

[0024] figure 1 The gear 1 in the figure is the processing workpiece, and the grinding wheel 3 is the forming grinding wheel on the grinding machine. When the grinding wheel needs to be trimmed, such as figure 2 As shown, the grinding wheel dresser controls the movement of the X-axis (longitudinal) servo motor and the Z-axis (up and down direction) servo motor through the numerical control system to realize the curved movement of the diamond roller, thereby completing the dressing of the curved surface of the grinding wheel. In order to measure the tooth shape error of the proces...

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Abstract

The present invention features that one digitally controlled grinding wheel corrector is used in in-situ measurement and data processing to judge the work state, determine the correcting curve and create the correcting program automatically. The trimming process includes the following steps: the machine tool to control the shaping abrasive wheel to move in X direction to grind gear; to set the measuring head locate in gear measuring position and contact with the base circle; to control the measuring head to move along the ideal involute locus by means of the interpolation of the X-servo motor and the Z-servo motor to obtain the data; to evaluate the gear tooth shape error; and to control the grinding wheel to trim. The said method reduces the idle machining time and raise the grinding precision, and is suitable for machining gear and spline shaft.

Description

technical field [0001] The invention relates to an on-line dressing method for a shaped grinding wheel, which belongs to the technical field of precision machining. Background technique [0002] In CNC forming grinding machine processing, the forming of the workpiece directly depends on the shape of the grinding wheel. When the grinding wheel is worn, its shape should be trimmed in time, otherwise it will cause processing errors. Due to the lack of on-line measurement technology at present, the grinding wheel dressing generally adopts offline measurement of the workpiece, and the dressing of the grinding wheel is controlled according to the measurement results. The processing accuracy is too high, and the processing time is too long; on the other hand, it is difficult to accurately grasp the dressing time of the grinding wheel, and it can only be determined by experience when the grinding wheel should be dressed. Contents of the invention [0003] The object of the presen...

Claims

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Application Information

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IPC IPC(8): B24B53/06B24B53/08
Inventor 李郝林
Owner UNIV OF SHANGHAI FOR SCI & TECH
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