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Chamfering blade and cutter rod special for bearing

A blade and chamfering technology, applied to lathe tools, accessories of tool holders, turning equipment, etc., can solve problems such as scratching blades, easy to block wires, and damaged products, so as to improve efficiency, ensure quality, The effect of improving the service life

Pending Publication Date: 2019-06-18
慈溪市精恒机械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing ordinary chamfering inserts are kept parallel to the spindle of the machine tool when installed on the tool holder. During the cutting process, the iron wire will be discharged along the spindle of the machine tool, so it is very easy to get stuck on the cutter holder and the chamfering of the inner circular groove. Between the knife rods, it is very easy to block the wire after a long time, and when the wire is discharged outwards, it will not only scratch the inner hole of the bearing and the inner circular groove, but also hit the inner circular groove blade, thereby damaging the product and scratching the blade. Seriously affect product quality

Method used

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  • Chamfering blade and cutter rod special for bearing
  • Chamfering blade and cutter rod special for bearing
  • Chamfering blade and cutter rod special for bearing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In this embodiment, the blade body 1 is provided with three cutting parts 2 . Through the three cutting parts 2, the overall shape of the insert body 1 is triangular, which has better stability and prevents vibration of the bearing during chamfering.

[0026] In this embodiment, the rotation angle α is 45 degrees. This rotation angle α degrees results in a chip removal surface with a larger space on the insert body 1 .

[0027] In this embodiment, the first inclination angle β is 6 degrees. Through the first inclination angle β, the iron wire is discharged relatively slowly and orderly, and it is discharged in a slide type, preventing the blade from being too large as a whole, and the blade is too small and has no cutting strength and is easy to collapse, or is too small Or when it is at a negative angle, the iron wire cannot be discharged from the chip removal surface.

[0028] In this embodiment, the second inclination angle γ is 80 degrees. Through the second inc...

Embodiment 2

[0034] In this embodiment, the blade body 1 is provided with three cutting parts 2 . Through the three cutting parts 2, the overall shape of the insert body 1 is triangular, which has better stability and prevents vibration of the bearing during chamfering.

[0035] In this embodiment, the rotation angle α is 65 degrees. This angle of rotation α degrees results in a relatively small-space chip removal surface 7 on the insert body 1 .

[0036] In this embodiment, the first inclination angle β is 8 degrees. Through the first inclination angle β, the iron wire is discharged relatively quickly, and it is discharged in a slide type, preventing the blade from being too large inclination and too small in size without cutting strength and easy to collapse, or too small, When it is at a negative angle, the iron wire cannot be discharged from the chip removal surface 7 .

[0037] In this embodiment, the second inclination angle γ is 95 degrees. Because the wire discharge area is sma...

Embodiment 3

[0043] In this embodiment, four cutting parts 2 are provided on the blade main body 1 . While considering the cutting strength and stability, it ensures the effective use of the blade and saves costs. Through a large number of tests, four cutting parts 2 are selected on the blade main body 1 .

[0044] In this embodiment, the rotation angle α is 45 degrees. This rotation angle α degrees results in a chip removal surface with a larger space on the insert body 1 .

[0045] In this embodiment, the first inclination angle β is 6 degrees. Through the first inclination angle β, the iron wire is discharged relatively slowly and orderly, and it is discharged in a slide type, preventing the blade from being too large as a whole, and the blade is too small and has no cutting strength and is easy to collapse, or is too small Or when it is at a negative angle, the iron wire cannot be discharged from the chip removal surface.

[0046] In this embodiment, the second inclination angle γ ...

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Abstract

The invention provides a chamfering blade and cutter rod special for a bearing. The chamfering blade comprises a blade main body and a cutter rod main body. The blade main body is provided with a cutting portion. The cutting portion comprises a first cutting face and a second cutting face. The cutting portion is further provided with a rotating face. A rotating angle alpha is formed between the rotating face and a main shaft of a machine tool and is 40-70 degrees. The cutting portion further comprises a scrap discharging face. A first inclination angle beta is formed between the scrap discharging face and the horizontal plane and is 6-8 degrees. The scrap discharging face and the blade main body form an arc connector. A second inclination angle gamma is formed between the arc connector andthe main shaft of the machine tool and is 80-100 degrees. A containing groove is formed in the cutter rod main body and provided with a first locating face and a second locating face. An included angle is formed between the first locating face and the main shaft of the machine tool. The included angle is consistent with the rotating angle. The first locating face and the second locating face areintersected. By means of the blade and the cutter rod, iron wires are discharged along the scrap discharging face in the horizontal direction, the original iron wire discharging direction is changed,and the phenomenon that the wire is stuck is avoided.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a special chamfering blade and cutter bar for bearings. Background technique [0002] Bearings are indispensable parts in contemporary mechanical equipment. Their main function is to support the mechanical rotating body, reduce its friction coefficient during operation, and ensure the rotation accuracy. Due to the gradual development of the industrial age, more complex mechanical equipment has gradually increased, and the demand for bearings has also increased. [0003] With the increasing demand for bearings, many existing ordinary machine tools have been gradually converted into semi-automatic machine tools in order to increase product output and ensure quality. And during the processing of the bearing, the bearing will also perform a chamfering process on the outer circle while processing its inner circle groove. However, the existing ordinary chamfering inserts are kept...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B27/00
Inventor 喻真雪
Owner 慈溪市精恒机械有限公司
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