JP2018024054A5 - - Google Patents
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- JP2018024054A5 JP2018024054A5 JP2016157262A JP2016157262A JP2018024054A5 JP 2018024054 A5 JP2018024054 A5 JP 2018024054A5 JP 2016157262 A JP2016157262 A JP 2016157262A JP 2016157262 A JP2016157262 A JP 2016157262A JP 2018024054 A5 JP2018024054 A5 JP 2018024054A5
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- JP
- Japan
- Prior art keywords
- grinding
- grindstone
- workpiece
- allowance
- patent document
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000001514 detection method Methods 0.000 description 4
- 239000004575 stone Substances 0.000 description 2
- 235000004789 Rosa xanthina Nutrition 0.000 description 1
- 241000109329 Rosa xanthina Species 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Description
特許文献２には、研削装置の別例が開示されている。具体的に、特許文献２に係る研削装置（精密研削加工装置）は、駆動モータの駆動電流の変化を検出する検出回路を備えて構成されており、ワーク（被加工物）と砥石（加工工具）とを高速で接近させている最中、検出回路の検出信号が所定の閾値（検出レベル）を超えたとき、ワークと砥石とが接触したものと判定するようになっている。この特許文献２に係る研削装置は、ワークと砥石との接触を検出すると、ワークに対する砥石の送り速度を低速へ切り換えるよう構成されている。 Patent Document 2 discloses another example of a grinding apparatus. Specifically, a grinding apparatus according to Patent Document 2 (precision grinding apparatus) is constituted by a detection circuit for detecting a change in the drive current of the drive motor, the workpiece (workpiece) and the grinding wheel (machining tool When the detection signal of the detection circuit exceeds a predetermined threshold (detection level), it is determined that the workpiece and the grindstone are in contact with each other. The grinding apparatus according to Patent Document 2 is configured to switch the feed speed of the grindstone to the work to a low speed when contact between the work and the grindstone is detected.
研削サイクルＳｎの各工程において、駆動電力は、砥石２１とワークＷとの相対位置関係、砥石径、及び、クーラントのかかり具合等に応じてバラつく。また、早送りの最中、駆動電力は、砥石２１とワークＷとが接近するにしたがって、概ね、増加するようになっている。その結果、実施例では、駆動電力は、砥石２１が送り込まれるにしたがって、振動しながら漸増するようになっている。ここで、予定以上の取代を有するワークＷ ｎ が投入された結果、砥石２１とワークＷ ｎ とが接触してしまった場合、砥石駆動モータ４４にかかる負荷が増大した分だけ、駆動電力は、急速に上昇する。その場合、駆動電力が、前記の如く設定された取代閾値Ｕ ｎ を超えることになり、制御装置１００は、前述のステップＳ３〜Ｓ５に示すように、操作者へ異常を報知して、研削サイクルＳ ｎ を中止する。尚、取代閾値Ｕ ｎ に基づいた判定は、早送りの最中に砥石２１とワークＷとが接触した結果、砥石２１や研削装置１に破損が生じてしまうことが無いように行っている。そのため、準急送り以降の工程では、取代閾値Ｕ ｎ に基づいた判定は、原則として行わない。 In each step of the grinding cycle S n, driving power is relative positional relationship between the grinding stone 21 and the workpiece W, the grinding wheel diameter, and attached roses depending on the depth at such coolant. During fast-forwarding, the drive power generally increases as the grindstone 21 and the workpiece W approach each other. As a result, in the embodiment, the drive power gradually increases while vibrating as the grindstone 21 is fed. Here, as a result of the work W n having planned more allowance is turned on, if the grinding stone 21 and the workpiece W n is accidentally contacted by the amount of load on the grinding wheel drive motor 44 is increased, the driving power is It rises rapidly. In that case, driving power, it will exceed the allowance threshold U n that is set as the control device 100, as shown in the above-described step S3 to S5, and notifies the abnormality to the operator, grinding cycle to cancel the S n. The determination based on the allowance threshold U n is the grindstone 21 to the results and the workpiece W is in contact during the fast-forward is performed as it is not to damage the grindstone 21 and the grinding device 1 occurs. Therefore, in the local express subsequent feeding step, the determination based on the allowance threshold U n is not performed in principle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016157262A JP6618867B2 (en) | 2016-08-10 | 2016-08-10 | Grinding apparatus and grinding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016157262A JP6618867B2 (en) | 2016-08-10 | 2016-08-10 | Grinding apparatus and grinding method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2018024054A JP2018024054A (en) | 2018-02-15 |
| JP2018024054A5 true JP2018024054A5 (en) | 2018-10-25 |
| JP6618867B2 JP6618867B2 (en) | 2019-12-11 |
Family
ID=61194489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2016157262A Active JP6618867B2 (en) | 2016-08-10 | 2016-08-10 | Grinding apparatus and grinding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6618867B2 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539012Y2 (en) * | 1971-04-10 | 1978-03-09 | ||
| US4163346A (en) * | 1978-02-01 | 1979-08-07 | Cincinnati Milacron Inc. | Grinding machine control |
| JPH07299744A (en) * | 1994-04-28 | 1995-11-14 | Kubota Corp | Pipe cutting method |
| JP2004066392A (en) * | 2002-08-06 | 2004-03-04 | Daisho Seiki Kk | Grinding method of vertical type double-head surface grinding machine for machining brake disk |
| JP4345322B2 (en) * | 2003-02-25 | 2009-10-14 | 株式会社ジェイテクト | Grinding apparatus and control method thereof |
| JP2014000660A (en) * | 2012-06-20 | 2014-01-09 | Avanstrate Inc | Substrate processing device and substrate processing method |
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2016
- 2016-08-10 JP JP2016157262A patent/JP6618867B2/en active Active
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