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Arc trimming and fine adjustment mechanism for grinding wheel

A technology of fine-tuning mechanism and circular arc, which is applied to the parts of grinding machine tools, abrasive surface adjustment devices, metal processing equipment, etc., which can solve the problems of unsatisfactory bearing raceways, etc., achieve good adjustment, improve machining accuracy, and improve accuracy Effect

Pending Publication Date: 2019-09-13
马鞍山市恒永利机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] After retrieval, Chinese patent application number: 201320760806.1, authorized announcement date: May 21, 2014, invention name: a double-supported single-point arc dresser; another example, Chinese patent application number: CN 201610967905.5, application publication date : On January 25, 2017, the name of the invention: grinder grinding wheel dresser; the above two applications are all aimed at the diamond pen for the grinding wheel to be oscillated and trimmed, and the motor drives the diamond pen on the pendulum to swing on the horizontal plane, thereby The grinding wheel is trimmed, but the shape of the dressing wheel is convex, and the shape of the processed workpiece is concave, which cannot meet the convexity of the bearing raceway. In addition, in the above two comparative patents, the diamond pen is equipped with an eccentric In comparison document 1, the diamond pen on the eccentric sleeve is driven by adjusting the hand wheel to move back and forth along the center hole of the rotary pendulum to achieve the purpose of adjusting the dressing radius of the grinding wheel; the design of the eccentric sleeve in comparison document 2 is to facilitate adjustment The height of the diamond pen
Although the two schemes can realize the adjustment of the diamond pen, the whole adjustment process is only for the adjustment in the processing engineering, not for the adjustment of the assembly error existing in the assembly process of the trimming device

Method used

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  • Arc trimming and fine adjustment mechanism for grinding wheel
  • Arc trimming and fine adjustment mechanism for grinding wheel
  • Arc trimming and fine adjustment mechanism for grinding wheel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] combine figure 1 and figure 2 , a grinding wheel arc trimming and fine-tuning mechanism in this embodiment includes a diamond pen 100 installed on a workbench 400, wherein the diamond pen 100 is fixedly mounted on a rotating arm 300, and the rotating arm 300 is connected to the rotating shaft 501 of a servo motor 500 . Drive rotating arm 300 to rotate by servomotor 500 running, and then drive diamond pen 100 to rotate, thereby the emery wheel 200 to be processed on the workbench 400 is trimmed.

[0040] Control the diamond pen 100 by the servo motor 500 with the rotating shaft 501 as the center of a circle, and rotate with the distance of the central axis of the diamond pen 100 from the central axis of the rotating shaft 501 as a radius, so that the dressing machine of the diamond pen 100 to the emery wheel 200 is easy to process, and The trajectory of the diamond pen 100 is smoother and more stable, which improves the dressing accuracy of the grinding wheel 200 .

...

Embodiment 2

[0045] A grinding wheel arc trimming and fine-tuning mechanism in this embodiment is basically the same as in Embodiment 1, except that the rotating arm 300 in this embodiment can be vertically installed on the rotating shaft 501, combined with figure 1 and 4 ; It can also be installed obliquely on the rotating shaft 501, combined with 5; as long as the servo motor 500 can drive the diamond pen 100 to swing, and the diamond pen 100 moves on a vertical plane.

[0046] As a preference, the rotating arm 300 in this embodiment is arranged perpendicular to the rotating shaft 501, which is convenient for dressing the grinding wheel 200 and installing the rotating arm 300 on the rotating shaft 501.

[0047] combine figure 1 and Figure 4 In this embodiment, in order to prevent the diameter of the diamond pen 100 from being greater than the diameter of the fine-tuning shaft 600, and then it cannot be guaranteed that the diamond pen 100 deviates from the central axis of the fine-tuni...

Embodiment 3

[0053] combine image 3 , a grinding wheel arc trimming and fine-tuning mechanism of this embodiment is basically the same as Embodiment 2, except that the distance between the central axis of the diamond pen 100 and the central axis of the fine-tuning shaft 600 in this embodiment is 2 mm. In addition, in order to facilitate artificial adjustment of the position of the diamond pen 100 on the rotating arm 300, that is, to adjust the highest point of rotation of the diamond pen 100 to be at the same height as the center of rotation of the grinding wheel 200, the other end of the diamond pen 100 is fixedly installed on the fine-tuning shaft 600 in this embodiment There is a rotating part 601, which drives the fine-tuning shaft 600 to rotate in the upper mounting hole 301 when the rotating part 601 rotates, and then drives the diamond pen 100 to rotate. It is worth noting that the rotating part 601 in this embodiment can be applied to it by an auxiliary tool. Turning force, auxili...

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Abstract

The invention discloses an arc trimming and fine adjustment mechanism for a grinding wheel, and belongs to the technical field of grinding wheel trimming. The arc trimming and fine adjustment mechanism for the grinding wheel comprises a diamond pen and the grinding wheel which are installed on a workbench, wherein the diamond pen is arranged on a fine adjustment shaft on a rotary arm in a manner of deviating from the central axis of the fine adjustment shaft, the rotary arm is connected with a servo motor, and the diamond pen is driven through the servo motor to rotate to trim the grinding wheel to be machined; and moreover, the diamond pen is capable of being adjusted on the rotary arm, so that the height of the highest rotary point of the diamond pen is changed. According to the arc trimming and fine adjustment mechanism for the grinding wheel, the diamond pen is designed to be of an adjustable structure, that is, a user adjusts the highest rotary point of the diamond pen by adjusting the position of the diamond pen on the rotary arm, and enables the highest rotary point of the diamond pen to be located at the same height as the rotary center of the grinding wheel, so that the subsequent arc swing trimming of the diamond pen for the grinding wheel is benefited; and the assembly error generated by the arc trimming device in an assembly process is greatly reduced, and the machining accuracy is increased, so that the subsequently-produced bearing achieves the requirement of high quality, and is adaptive to the rapid development of a bearing market.

Description

technical field [0001] The invention relates to the technical field of grinding wheel dressing, and more specifically relates to a fine-tuning mechanism for grinding wheel arc dressing. Background technique [0002] With the gradual improvement of market requirements for bearing quality, in the grinding of inner and outer rings and rollers of roller bearings, most of the contact surfaces are required to have a certain slight convex shape, that is, in the inner ring, outer ring, The rollers must have a certain convex shape, which is called "three convex" in the industry. This is because when the bearing is running, there is a large contact stress concentration phenomenon at the edge of the raceway, causing most of the damage of the bearing to start at the edge of the raceway. In order to eliminate the concentration of edge stress and improve the working life of the raceway, most of the industry adopts this convex raceway. In addition, the design of the convexity facilitates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24B53/12B24B53/06
CPCB24B53/12B24B53/06
Inventor 张合军石勇俞伟锋王伟
Owner 马鞍山市恒永利机械科技有限公司
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