WO2014061327A1 - ドレッシング装置および歯車研削装置 - Google Patents
ドレッシング装置および歯車研削装置 Download PDFInfo
- Publication number
- WO2014061327A1 WO2014061327A1 PCT/JP2013/069589 JP2013069589W WO2014061327A1 WO 2014061327 A1 WO2014061327 A1 WO 2014061327A1 JP 2013069589 W JP2013069589 W JP 2013069589W WO 2014061327 A1 WO2014061327 A1 WO 2014061327A1
- Authority
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- WIPO (PCT)
- Prior art keywords
- grindstone
- threaded
- gear
- dressing
- screw
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/12—Other devices, e.g. tool holders; Checking devices for controlling workpieces in machines for manufacturing gear teeth
- B23F23/1225—Arrangements of abrasive wheel dressing devices on gear-cutting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
- B23F5/02—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by grinding
- B23F5/04—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by grinding the tool being a grinding worm
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F9/00—Making gears having teeth curved in their longitudinal direction
- B23F9/02—Making gears having teeth curved in their longitudinal direction by grinding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
- B24B53/075—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
- B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
- B24B53/08—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like
- B24B53/085—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like for workpieces having a grooved profile, e.g. gears, splined shafts, threads, worms
Definitions
- the present invention relates to a thread grinding wheel dressing device and a gear grinding device using the thread grinding wheel.
- Gears are categorized into various types depending on the usage, etc.
- the gear teeth are finely shaped according to the usage and usage environment.
- ⁇ 20 °
- by providing crowning on the tooth surface such that the center of the tooth swells along the direction of the tooth trace and both ends of the tooth are thinned it is possible to prevent tooth breakage due to contact with the tooth surface.
- the fine shape as described above can be easily set on the gear by a gear grinding device.
- both the involute curve and the crowning are processed constant. difficult.
- the involute curve and the pressure angle ⁇ change in the tooth trace direction, resulting in a twisted tooth surface.
- bias Such a twist of the tooth surface is called a bias, and the degree of twist is called a bias amount.
- bias correction and bias adjustment that makes the bias amount zero so that the tooth surface is not twisted has been performed.
- Patent Literature 1 discloses a technique for correcting the bias in the gear as described above. This is a technique for changing the pressure angle ⁇ of the teeth formed in a spiral shape on the peripheral surface of the threaded grindstone along the tooth trace direction by inclining the threaded grindstone and performing dressing with a dressing tool. According to this, as the pressure angle ⁇ of the screw-shaped grindstone changes, the pressure angle ⁇ of the helical gear tooth surface gradually changes from one end side to the other end side along the tooth trace direction. Bias correction can be given.
- the present invention has been made in view of the above-described problems, and an object of the present invention is to enable adjustment of a bias amount in a gear without increasing the size of the apparatus and increasing the manufacturing cost.
- a dressing apparatus for solving the above-mentioned problems is a gear grinding tool shaft that rotatably supports a thread-like grindstone for use in gear processing, and is rotatably supported in parallel with the gear grinding tool shaft, A dressing tool for dressing the threaded grindstone, rotating the threaded grindstone, bringing the threaded grindstone and the dressing tool into contact with each other, and at least one of the threaded grindstone and the dressing tool relatively
- a dressing device that performs dressing of the threaded grindstone by moving the threaded grindstone and the dressing tool in the axial direction, wherein at least one of the threaded grindstone and the dressing tool is constant in the axial direction.
- a gear grinding apparatus for solving the above-described problem is provided such that a work gear shaft that rotatably supports a work gear and a screw-like grindstone that grinds the work gear are rotatably supported.
- a gear grinding device having a gear grinding tool shaft parallel to a direction perpendicular to the cutting gear shaft and capable of adjusting a bias of the work gear by the screw-shaped grinding wheel, wherein the screw-shaped grinding wheel has a pressure angle of Using a tool that changes along the tooth trace direction, the work gear and the threaded grindstone are driven to rotate, and the tooth surface of the threaded grindstone contacts the tooth surface of the work gear.
- At least one of the work gear and the threaded grindstone is moved in the axial direction of the threaded grindstone, and the rotational speed of the work gear is controlled so as to correspond to a change in the lead in the threaded grindstone.
- the dressing apparatus According to the dressing apparatus according to the first invention, at least one of the threaded grindstone and the dressing tool is moved at a constant speed in the axial direction of the threaded grindstone and the dressing tool, and the rotational speed of the threaded grindstone is changed, or
- the gear grinding tool shaft and dressing tool are tilted by rotating the threaded grinding wheel at a constant speed and changing the moving speed of the threaded grinding wheel and dressing tool in the axial direction. Without making it, the thread-shaped grindstone can be dressed so that the pressure angle changes along the tooth trace direction. Therefore, since it is not necessary to provide a mechanism for inclining the gear grinding tool shaft and the dressing tool, a sensor for measuring the inclination, etc., an increase in manufacturing cost of the dressing apparatus can be suppressed.
- the workpiece gear and the threaded grindstone are driven to rotate, and the tooth surface of the threaded grinding wheel is in contact with the tooth surface of the threaded grindstone whose pressure angle changes.
- the lead is fixed to the workpiece.
- the gear can be manufactured in a predetermined shape, and the bias can be easily adjusted.
- FIG. 1 is a schematic diagram illustrating a gear grinding apparatus according to a first embodiment.
- the gear grinding apparatus of the present embodiment is an apparatus incorporating a gear grinding function and a thread-like grinding stone dressing function, and has a bed 1, a column 2, a table 3, and a counter column 4, as shown in FIG.
- a column 2 is installed so as to be movable in one direction (X direction)
- a table 3 is rotatably installed at the end of the column 2 in the moving direction
- a counter column 4 is installed further ahead.
- the moving direction of the column 2 is the X axis
- the vertical direction orthogonal to the X axis is the Z axis
- the direction orthogonal to the X axis and the Z axis is the Y axis
- the X axis rotation is the A axis rotation
- the Y axis rotation is Is the B-axis rotation and the Z-axis rotation is the C-axis rotation.
- the column 2 movable in the X-axis direction in the bed 1 includes a gear grinding tool shaft 7 via a Z-axis moving mechanism 5 movable in the Z-axis direction and a Y-axis moving mechanism 6 movable in the Y-axis direction.
- the screw-like grindstone 10 that is a gear grinding tool is rotatably supported.
- the threaded grinding wheel 10 used for gear grinding in the gear grinding apparatus of the present embodiment is dressed into a shape different from the conventional one by the dressing operation of the threaded grinding wheel 10 described later.
- the threaded grindstone 10 is provided with a single tooth in a spiral shape, and the tooth lead gradually decreases from one axial end to the other end of the threaded grindstone 10, and one end of the threaded grindstone 10 in the tooth trace direction.
- the tooth pressure angle ⁇ gradually increases from the side toward the other end. In this way, by changing the pressure angle ⁇ in the tooth trace direction, it is possible to adjust the bias amount in grinding of the work gear 20 by the threaded grindstone 10.
- the counter column 4 is provided with a swiveling ring 8 that can swivel around its outer periphery.
- the work gear 20 is gripped by a gripper (not shown) provided on the swivel ring 8, and the work gear 20 is carried into and out of the table 4 by turning the swivel ring 8.
- the work gear 20 can be ground by the threaded grinding wheel 10 (see FIG. 2).
- the work gear 20 is rotated by moving the column-shaped threaded grinding wheel 10 in the X-axis direction with respect to the work gear 20 rotating with the C axis. , Moved in the Z-axis direction by the Z-axis moving mechanism 5 of the column 2, and moved in the Y-axis direction by the Y-axis moving mechanism 6 of the column 2.
- the dressing unit 9 for dressing the threaded grindstone 10 is provided at a position different from the gripper (not shown) of the swivel ring 8, and a dressing tool 30 is attached to the dressing unit 9.
- the dressing unit 9 moves toward and away from the threaded grindstone 10 when the swivel ring 8 swivels.
- the threaded grindstone 10 can be dressed by the dressing tool 30 (see FIG. 1).
- the dressing tool 30 is applied to the threaded grindstone 10 by a pressing mechanism (not shown) against the threaded grindstone 10 rotating on the B axis.
- the Y-axis moving mechanism 6 of the column 2 moves in the Y-axis direction.
- the work gear 20 is made detachable from the table 3 and is gripped by a gripper (not shown) provided in the counter column 4.
- the counter column 4 is rotated in a state where the work gear 20 is gripped by a gripper (not shown), the work gear 20 is detached from the table 3, and the dressing unit 9 is brought close to the screw-like grindstone 10.
- the gear grinding tool shaft 7 and the threaded grinding wheel 10 are driven to rotate, and the dressing tool 30 is applied to the threaded grinding wheel 10 rotated by a pressing mechanism (not shown) to perform dressing.
- the Y-axis moving mechanism 6 of the column 2 moves the threaded grindstone 10 at a constant speed to the Y axis.
- the rotational speed of the threaded grinding wheel 10 is changed by the gear grinding tool shaft 7.
- the lead of the threaded grindstone 10 is changed in the axial direction to form a single tooth whose pressure angle ⁇ is changed in the tooth trace direction.
- the position where the dressing tool 30 is applied to the threaded grindstone 10 reaches the other end side from the one end side to the other end side.
- the rotational speed of the grindstone 10 is changed from low to high. Comparing the tooth leads of the threaded grindstone 10, the lead is large on one end side and the lead is small on the other end side.
- the tooth pressure angle ⁇ in the threaded grinding wheel 10 changes as the tooth lead in the threaded grinding wheel 10 changes. When comparing the pressure angle ⁇ of the teeth in the threaded grindstone 10, the pressure angle ⁇ is small on one end side and the pressure angle ⁇ is large on the other end side.
- the shape of the teeth in the threaded grinding wheel 10 is not limited to this embodiment.
- the rotational speed of the screw-shaped grindstone 10 is changed from high rotation to low rotation from one end side of the screw-shaped grindstone 10 to the center portion, and the other end from the center portion of the screw-shaped grindstone 10
- the rotational speed of the threaded grindstone 10 is changed from the low rotation to the high rotation toward the side.
- the screw-shaped grindstone 10 having a large pressure angle ⁇ near both ends and a small pressure angle ⁇ near the center can be formed.
- the threaded grinding wheel 10 is rotated at a constant speed by the gear grinding tool shaft 7, and the Y axis of the column 2 is rotated.
- the moving mechanism 6 changes the moving speed of the threaded grindstone 10 in the Y-axis direction.
- the lead of the threaded grindstone 10 is changed in the axial direction to form a single tooth whose pressure angle ⁇ is changed in the direction of the tooth trace. Also good.
- crowning is provided on the teeth of the work gear 20, and the work gear 20 is ground so that the pressure angle ⁇ of one tooth is constant in the tooth trace direction. That is, the work gear 20 with zero bias is manufactured.
- the unmachined work gear 20 is gripped by a gripper (not shown) provided in the counter column 4 in order to carry the unprocessed work gear 20 into the table 3. .
- the counter column 4 is rotated in a state where the work gear 20 is gripped by the gripper, and the dressing tool 30 is detached from the screw-shaped grindstone 10 and the work gear 20 is carried into the table 3.
- the work gear 20 is fixed to the table 3.
- a supply device (not shown) delivers the unmachined workpiece gear 20 to a gripper (not shown), and a discharge device (not shown) receives the machined workpiece gear 20 from a gripper (not shown).
- the gear grinding tool shaft 7 and the threaded grinding wheel 10 are driven to rotate, and the work gear 20 is ground. Grinding of the work gear 20 is performed by the following control by a control device (not shown).
- the work gear is ground with the rotation speed of the work gear, the rotation speed of the screw-type grindstone, and the Z-axis feed speed being constant.
- the pressure angle ⁇ and the lead in the threaded grinding wheel 10 are changed in a non-constant manner, so the rotational speed of the work gear 20, the rotational speed of the threaded grinding wheel 10, and the Z-axis feed speed are changed. By doing so, the work gear 20 is ground into a predetermined shape.
- each speed value is calculated by a control device (not shown), and based on the calculated values, the rotation of the work gear 20 and Drive control is performed in the rotation of the screw-shaped grindstone 10 and the Z-axis feed.
- tooth tip lowering To the part where the pressure angle ⁇ is processed to be larger than the setting (hereinafter referred to as the tooth tip lowering), a tooth on one end side with a small pressure angle ⁇ in the screw-shaped grindstone 10 is applied, and the processing is performed with the pressure angle ⁇ smaller than the setting.
- the tooth on the other end side where the pressure angle ⁇ of the screw-shaped grindstone 10 is large is applied to the portion (hereinafter referred to as “tooth rise”).
- the tooth tip descending of the work gear 20 is one end side in the tooth trace direction, and the tooth tip rise is the other end side in the tooth trace direction.
- One end side of the tooth of the grindstone 10 is applied, and the other end side of the tooth of the threaded grinding wheel 10 is applied to the other end side of the tooth of the work gear 20. That is, the other end side is applied from one end side of the single tooth in the threaded grinding wheel 10 to the single tooth in the work gear 20. Therefore, the threaded grindstone 10 is largely moved in the Z-axis direction with respect to the work gear 20.
- the rotational speed of the work gear 20 is changed so as to correspond to the change in the tooth lead in the threaded grinding wheel 10.
- the shape of the work gear 20 is not limited to this embodiment.
- the work gear 20 may be formed by adjusting so that a predetermined bias is generated.
- different crowning may be set for the left tooth surface and the right tooth surface of the tooth of the work gear 20, and the bias adjustment may be performed according to each.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
- Gear Processing (AREA)
Abstract
Description
2 コラム
3 テーブル
4 カウンタコラム
5 Z軸移動機構
6 Y軸移動機構
7 歯車研削工具軸
8 旋回リング
9 ドレッシングユニット
10 ネジ状砥石
20 被削歯車
30 ドレッシング工具
Claims (2)
- 歯車の加工に供するネジ状砥石を回転自在に支持する歯車研削工具軸と、前記歯車研削工具軸と平行でかつ回転自在に支持され、前記ネジ状砥石をドレッシングするドレッシング工具とを有し、
前記ネジ状砥石を回転駆動させ、前記ネジ状砥石と前記ドレッシング工具とを接触させ、前記ネジ状砥石および前記ドレッシング工具の少なくとも一方を相対的に前記ネジ状砥石および前記ドレッシング工具の軸方向へ移動させることにより、前記ネジ状砥石のドレッシングを行うドレッシング装置であって、
前記ネジ状砥石と前記ドレッシング工具の少なくとも一方を、前記軸方向に一定の速度で移動させると共に前記ネジ状砥石の回転速度を変化させ、または、前記ネジ状砥石を一定の速度で回転させると共に前記ネジ状砥石と前記ドレッシング工具の少なくとも一方の前記軸方向への移動速度を変化させることにより、前記ネジ状砥石に圧力角が歯筋方向に沿って変化するドレッシング加工を施すことを特徴とするドレッシング装置。 - 被削歯車を回転自在に支持する被削歯車軸と、前記被削歯車を研削するネジ状砥石を回転自在に支持し、前記被削歯車軸と直交する方向に平行な歯車研削工具軸とを有し、前記ネジ状砥石によって前記被削歯車のバイアス調整が可能な歯車研削装置であって、
前記ネジ状砥石として、圧力角が歯筋方向に沿って変化する工具を用い、
前記被削歯車および前記ネジ状砥石を回転駆動させると共に、前記被削歯車における歯面に前記ネジ状砥石における圧力角の変化する歯面が接触するように前記被削歯車と前記ネジ状砥石の少なくとも一方を前記ネジ状砥石の軸方向に移動させ、
前記ネジ状砥石におけるリードの変化に対応するように前記被削歯車の回転数を制御する
ことを特徴とする歯車研削装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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DE112013005032.3T DE112013005032B4 (de) | 2012-10-17 | 2013-07-19 | Abrichtvorrichtung, Verfahren zum Abrichten und und Zahnradschleifvorrichtung |
CN201380051460.0A CN104684685B (zh) | 2012-10-17 | 2013-07-19 | 修整装置及齿轮磨削装置 |
US14/432,575 US10610941B2 (en) | 2012-10-17 | 2013-07-19 | Dressing device and gear grinding device |
Applications Claiming Priority (2)
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JP2012-229433 | 2012-10-17 | ||
JP2012229433A JP5984615B2 (ja) | 2012-10-17 | 2012-10-17 | ドレッシング装置および歯車研削装置 |
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US (1) | US10610941B2 (ja) |
JP (1) | JP5984615B2 (ja) |
CN (1) | CN104684685B (ja) |
DE (1) | DE112013005032B4 (ja) |
WO (1) | WO2014061327A1 (ja) |
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JP5854792B2 (ja) * | 2011-11-25 | 2016-02-09 | 三菱重工業株式会社 | 鼓形歯車状砥石のドレッシング方法及びディスク形ドレッサ |
JP6440452B2 (ja) * | 2014-10-28 | 2018-12-19 | トーヨーエイテック株式会社 | 歯車研削盤の加工精度修正方法 |
CN104439539A (zh) * | 2014-11-06 | 2015-03-25 | 逢甲大学 | 具有双导程形式与变压力角的蜗杆式刀具及其操作方法 |
DE102015000907A1 (de) * | 2015-01-23 | 2016-07-28 | Liebherr-Verzahntechnik Gmbh | Verfahren zur Verzahnbearbeitung eines Werkstückes durch ein Diagonalwälzverfahren |
DE102015000974A1 (de) | 2015-01-23 | 2016-07-28 | Liebherr-Verzahntechnik Gmbh | Verfahren und Vorrichtung zur Verzahnbearbeitung eines Werkstückes durch ein Diagonalwälzverfahren |
CN105750667B (zh) * | 2016-04-22 | 2017-08-01 | 湖北汽车工业学院 | 一种螺纹刀具牙型的修磨装置 |
JP7515108B2 (ja) | 2020-09-02 | 2024-07-12 | 株式会社イワサテック | マシニングセンタ、歯面の研削方法及び研削プログラム |
CN117580678A (zh) | 2021-07-07 | 2024-02-20 | 尼得科机床株式会社 | 修整装置、齿轮磨削装置以及磨石的修整方法 |
CN113618508B (zh) * | 2021-10-12 | 2021-12-28 | 南通伟腾半导体科技有限公司 | 一种晶圆切割刀片的外圆修磨工艺 |
DE102022104361A1 (de) * | 2022-02-24 | 2023-08-24 | KAPP NILES GmbH & Co. KG | Verfahren zur wälzenden Hartfeinbearbeitung einer Verzahnung eines Werkstücks mittels eines Schleifwerkzeugs |
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- 2013-07-19 US US14/432,575 patent/US10610941B2/en active Active
- 2013-07-19 WO PCT/JP2013/069589 patent/WO2014061327A1/ja active Application Filing
- 2013-07-19 CN CN201380051460.0A patent/CN104684685B/zh active Active
- 2013-07-19 DE DE112013005032.3T patent/DE112013005032B4/de active Active
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JP2006035400A (ja) * | 2004-07-29 | 2006-02-09 | Mitsubishi Heavy Ind Ltd | 歯車研削盤 |
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Publication number | Publication date |
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JP5984615B2 (ja) | 2016-09-06 |
US20150251260A1 (en) | 2015-09-10 |
JP2014079847A (ja) | 2014-05-08 |
CN104684685A (zh) | 2015-06-03 |
DE112013005032B4 (de) | 2023-12-21 |
US10610941B2 (en) | 2020-04-07 |
DE112013005032T5 (de) | 2015-07-30 |
CN104684685B (zh) | 2017-04-05 |
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