WO2023157932A1 - 歯車ワークの歯面の研削方法及び歯車研削盤 - Google Patents
歯車ワークの歯面の研削方法及び歯車研削盤 Download PDFInfo
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- WO2023157932A1 WO2023157932A1 PCT/JP2023/005527 JP2023005527W WO2023157932A1 WO 2023157932 A1 WO2023157932 A1 WO 2023157932A1 JP 2023005527 W JP2023005527 W JP 2023005527W WO 2023157932 A1 WO2023157932 A1 WO 2023157932A1
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- WIPO (PCT)
- Prior art keywords
- gear
- coolant
- grinding
- work
- grindstone tool
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 17
- 206010006514 bruxism Diseases 0.000 title 1
- 239000002826 coolant Substances 0.000 claims abstract description 111
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
- B24B55/02—Equipment for cooling the grinding surfaces, e.g. devices for feeding coolant
-
- 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
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/10—Arrangements for cooling or lubricating tools or work
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/009—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding profiled workpieces using a profiled grinding tool
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/02—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements
- B24B19/022—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding grooves, e.g. on shafts, in casings, in tubes, homokinetic joint elements for helicoidal grooves
Definitions
- the present disclosure relates to a grinding method for grinding the tooth surface of a gear workpiece with a threaded grindstone (hereinafter referred to as a grindstone tool) having threads for grinding on its outer peripheral surface.
- the disclosure also relates to a gear grinding machine on which the grinding method is implemented.
- the grindstone tool and the gear work are rotated in a state where the screw on the outer peripheral surface of the grindstone tool and the teeth of the gear work cut by a hobbing machine or the like are engaged. . Due to the rotation of this meshed state, the tooth flank of the gear work is ground by the screw of the grindstone tool. This grinding improves the surface roughness of the tooth surface of the gear workpiece.
- the coolant supply mechanism in conventional gear grinders handles a large amount of coolant, so it is impossible to avoid an increase in size.
- the size of the entire gear grinding machine increases, and the gear grinding machine requires a large installation area in the factory.
- the gear grinder comprises a grinding wheel tool having a grinding thread on its outer periphery.
- the grinding method includes grinding the tooth flank by rotating the grindstone tool and the gear work in a state where the screw and the teeth of the gear work are meshed, and the meshing of the screw and the teeth. supplying coolant toward the tooth surface from the upstream side in the rotation direction of the gear work through the space between the grindstone tool and the gear work that are present on the meshing start side of the part.
- a gear grinder comprising a grindstone tool having a thread for grinding on its outer periphery and a coolant discharge member having a discharge port for discharging coolant at its tip.
- the gear grinding machine grinds the tooth surface of the gear workpiece by rotating the grindstone tool and the gear workpiece in a state where the screw and the teeth of the gear workpiece are engaged with each other, and grinds the tooth surface of the gear workpiece from the discharge port. and supplies the coolant to the meshing portion of the teeth.
- the discharge port is arranged on the meshing start side of the meshing portion, and the coolant is supplied from the upstream side in the rotation direction of the gear work to the tooth surface through the space between the grinding tool and the gear work. configured to supply to
- Coolant is supplied from the upstream side in the rotation direction of the gear work toward the tooth flanks of the gear work through the space existing on the meshing start side of the meshing portion between the teeth of the gear work and the thread of the grindstone tool. Therefore, the coolant is drawn into the meshing portion by the rotation of the gear work and the movement of the screw in the axial direction of the grindstone tool accompanying the rotation of the grindstone tool. Therefore, since the amount of coolant scattered around the gear work is reduced, even if the amount of coolant supplied is small, a sufficient amount of coolant is supplied to the meshing portion, which effectively lubricates, cools, and removes chips. provided for discharge. Since the amount of coolant to be supplied can be reduced in this way, the output of the driving motor for supplying coolant can be low, and the cooling device for coolant can be small. Therefore, the coolant supply mechanism of the gear grinder can be made compact.
- the entire gear grinder can be downsized, so the area occupied by the gear grinder in the factory can be reduced.
- FIG. 3 is a cross-sectional plan view showing a grinding state of the same;
- FIG. 11 is a side view showing the relationship between the meshing portion and the discharge port.
- 1 is a simplified diagram showing a gear grinder in which embodiments are practiced;
- FIG. 1 is a simplified diagram showing a gear grinder in which the prior art is practiced;
- FIG. 3 is a cross-sectional plan view showing a grinding state of the same; The partially broken perspective view which shows 3rd Embodiment.
- the gear workpiece whose tooth flanks are ground is a spur gear having straight teeth which are external teeth.
- the gear grinding machine 3 is composed of a grinding mechanism section 1 that performs a grinding function, and a coolant supply mechanism section 2 that supplies coolant 100 (see FIG. 3) to the grinding mechanism section 1. .
- the coolant 100 supplied from the coolant supply mechanism 2 to the grinding mechanism 1 for grinding the gear workpiece is collected by the coolant supply mechanism 2, filtered, temperature-controlled, and supplied to the grinding mechanism 1 again. be.
- the coolant 100 is thus circulated within the gear grinding machine 3 .
- a column 12 is arranged on a machine base 11 of the grinding mechanism section 1 of the gear grinding machine 3.
- the column 12 is moved in the X-axis direction in FIG. 1 by a motor (not shown).
- the column 12 supports a lift table 15 that is lifted and lowered in the Z-axis direction, which is the vertical direction, by a motor 14 .
- the elevator table 15 supports a rotary table 16 whose attitude is changed by being rotated around the X-axis direction by a motor 13 (not shown).
- a support table 17 is supported on the rotary table 16 so as to be movable in the Y-axis direction in FIG.
- a grindstone drive motor 18 is supported on the support base 17 .
- a grindstone shaft 19 is constituted by the output shaft of the grindstone drive motor 18 .
- a grindstone tool 21 having a thread 24 for grinding on its outer peripheral surface is attached to the grindstone shaft 19 . Accordingly, the grindstone tool 21 is rotated around the grindstone shaft 19 .
- the angle of the grindstone shaft 19 about the X-axis is adjusted by rotating the turntable 16 about the axis in the X-axis direction.
- the machine base 11 is provided with a work shaft 22 that is rotated around the Z-axis direction by a motor (not shown).
- a gear work 23 is supported on the upper end of the work shaft 22 .
- FIGS. 2 and 3 show a state in which the column 12 is retracted in the X-axis direction and the grindstone tool 21 and the gear work 23 are separated from each other.
- a coolant discharge member 31 is arranged on the meshing start side of the meshing portion between the grindstone tool 21 and the gear workpiece 23 .
- a coolant 100 is discharged from a discharge port 32 at the tip of the coolant discharge member 31 and supplied to the meshing portion.
- the discharge port 32 is located on the meshing start side of the meshing portion between the thread 24 of the grindstone tool 21 and the teeth 26 of the gear work 23 and upstream of the meshing portion in the rotational direction of the gear work 23 .
- the discharge port 32 is positioned on the outer peripheral side of the gear work 23 . Also, the discharge port 32 is at least partially arranged at the same position as the plane of rotation of the gear work 23 , that is, at the height of the gear work 23 .
- the height position of the gear work 23 refers to the position of the gear work 23 in the extension direction of the axis line ⁇ . Therefore, the discharge port 32 is arranged at least partially at the same position as the gear work 23 in the extension direction of the axis ⁇ of the gear work 23 .
- a space 101 between the grindstone tool 21 and the gear work 23 existing on the meshing start side is opened toward the upstream side in the rotational direction of the gear work 23 and narrows toward the meshing portion.
- the discharge port 32 is close to and faces this space 101 . Further, the discharge port 32 is oriented toward the upstream tooth flank 27 in the rotational direction of one or more teeth 26 positioned in the thread groove 29 of the grindstone tool 21 on the engagement start side.
- the tooth flank 27 on the upstream side in the rotational direction is the tooth flank 27 facing in the opposite direction to the rotational direction of the gear workpiece 23 . Therefore, the coolant 100 from the discharge port 32 is supplied toward the tooth flanks 27 of the teeth 26 located in the thread grooves 29 of the gear work 23 on the upstream side in the rotational direction.
- the gear work 23 is meshed with the grindstone tool 21 in grinding the tooth flanks 27 of the teeth 26 of the gear work 23 .
- the grindstone tool 21 is angularly adjusted around the X-axis according to the lead angle of the screw 24 .
- the grindstone tool 21 is rotated in the direction of arrow 103 and the gear work 23 is rotated in the direction of arrow 104 .
- the grindstone tool 21 is rotated in such a direction that the screw 24 thereof enters the tooth groove 28 of the gear work 23 from above.
- the tooth surface 27 of the tooth 26 of the gear work 23 is ground by the screw 24 of the grindstone tool 21 due to the rotation of both 21 and 23 in this meshing state.
- the coolant 100 circulated between the coolant supply mechanism 2 and the grinding mechanism 1 is discharged from the discharge port 32 .
- the discharged coolant 100 is supplied to the tooth flanks 27 of the teeth 26 in the thread groove 29 via a space 101 existing on the meshing start side of the meshing portion between the grindstone tool 21 and the gear workpiece 23 .
- the discharged coolant 100 is supplied from the upstream side in the rotational direction of the gear work 23 toward the meshing portion at the same height as the gear work 23 .
- the coolant 100 supplied toward the tooth surface 27 is applied to the grindstone tool 21 and the gearwork 23 by the rotation of the gearwork 23 and the movement of the screw 24 of the grindstone tool 21 in the direction in which the axis ⁇ extends. It is scraped into the entire intermeshing part.
- the movement of the screw 24 refers to the movement of the screw 24 in the direction in which the axis ⁇ extends due to the helical rotation of the screw 24 accompanying the rotation of the grindstone tool 21 .
- the coolant 100 lubricates and cools the sliding contact portion between the thread surface 25 of the screw 24 and the tooth surface 27 of the tooth 26 in the meshing portion, and also serves to discharge chips.
- the grindstone tool 21 is raised and lowered by raising and lowering the elevator table 15 so that the entire tooth width of the gear workpiece 23 is uniformly ground. Since the discharge port 32 follows this elevation, the coolant 100 is evenly supplied to the entire tooth surface 27 .
- the coolant 100 is drawn into the meshing portion from the outer peripheral side of the gear work 23 through the meshing start side. Therefore, unlike the case where the coolant 100 is supplied from the direction in which the axis ⁇ of the gear work 23 extends, less coolant 100 is scattered around. Therefore, even with a small amount of coolant 100, a sufficient amount of coolant 100 is supplied to the meshing parts for lubrication, cooling and chip evacuation. Therefore, the amount of coolant 100 used can be greatly reduced. It is preferable that there is no large difference between the peripheral speed of the tooth 26 and the speed at which the coolant 100 is supplied to the tooth surface 27, and the same speed is most preferable.
- the conventional method of supplying the coolant 100 from the axial direction of the gear workpiece 23 and the method of the embodiment described above were performed under the same grinding conditions as below. Then, the amount of coolant supply at which the obtained grinding accuracy of the tooth flank 27 becomes equal was measured. Moreover, the power consumption in that case was measured.
- Amount of coolant supplied per minute in the conventional method 200 liters
- Amount of coolant supplied per minute in the method of the embodiment 50 liters
- Fig. 5 shows the power consumption measured by the gear grinder of this embodiment and the conventional gear grinder in grinding under the above conditions. As can be seen from FIG. 5, the gear grinder of the embodiment consumes approximately 65 percent less power than the conventional gear grinder.
- the circulation amount of the coolant 100 can be reduced, the circulation path of the coolant 100 of the gear grinder 3 can be made compact.
- a small motor with low output can be used as the motor for driving the circulation and discharge of the coolant.
- the amount of circulation of the coolant 100 is small and the output of the motor is low, the amount of heat generated by the motor is small, and the cooling unit for the coolant 100 can be made compact.
- the small amount of coolant used and the small amount of coolant circulated result in a compact coolant storage tank that requires a large installation space.
- the coolant supply mechanism 2 can be made smaller, so that the entire gear grinding machine 3 can be made smaller. .
- the coolant supply mechanism 4 for executing the conventional coolant supply method is generally enlarged as a whole. Therefore, the gear grinder 5, which implements the conventional coolant supply method, occupies a large space in the factory. For this reason, it is common practice to separate the coolant supply mechanism 4 from the grinding mechanism 6 in order to secure a working space for maintenance of the gear grinding machine and a passage in the factory. . In the case of separation in this manner, the two mechanical parts 4 and 6 are connected by the coolant pipe 7, so a space for the coolant pipe 7 is further required.
- a low-power motor for driving the circulation may be used as described above.
- the power consumption of the entire gear grinding machine can be greatly reduced as compared with the conventional method as shown in FIG. 5, and energy saving can be achieved.
- the gear work 23 is a spur gear and has helical teeth 26 inclined with respect to the axis ⁇ of the gear work 23 .
- the rotation of the turntable 16 causes the grindstone tool 21 to be angularly adjusted about the X-axis according to the inclination angle of the helical teeth 26 .
- the discharge port 32 is also inclined to follow the grindstone tool 21 . That is, the discharge port 32 is inclined with respect to the axis of the gear work 23 so as to be inclined from the position of the outer peripheral surface of the gear work 23 in the same direction as the tooth spaces 28 and the tooth surfaces 27 of the helical teeth 26 . be.
- the coolant 100 is effectively drawn into the meshing portion between the grindstone tool 21 and the grindstone tool 23 due to the rotation of the gearwork 23 and the grindstone tool 21. Effects similar to those of the embodiment can be obtained.
- the discharge port 32 of the coolant discharge member 31 has a shape that follows the rotational trajectory of the outer peripheral surface of the gear work 23 (in other words, the movement trajectory of the tips of the teeth 26). has been That is, the upper and lower edges of the discharge port 32 are formed with circular arc portions 321 that extend along the rotational trajectory of the outer peripheral surface of the gear work 23 without contacting the outer peripheral surface of the gear work 23 .
- a contact avoiding portion 35 extending in the direction of the axis line ⁇ is formed at the tip of the discharge port 32 at intervals on the outer peripheral surface of the grindstone tool 21 to avoid contact between the grindstone tool 21 and the coolant discharge member 31 . It has become so.
- the distance between the space 101 and the ejection port 32 can be narrowed.
- the amount of coolant 100 that scatters to portions other than the meshing portion can be further reduced, and the amount of coolant 100 supplied to the meshing portion can be increased accordingly.
- the gear work 23 and the grindstone tool 21 Arrange the gear work 23 and the grindstone tool 21 so that the axis ⁇ of the gear work 23 is in the horizontal direction (for example, the X-axis direction).
- the gear work must be of internal teeth.
- the grindstone tool is barrel-shaped with its axis inclined with respect to the axis of the gear work.
- the discharge port of the coolant discharge member is arranged inside the gear work and close to the space between the grind stone tool and the gear work on the meshing start side of the grind stone tool and the gear work. The discharge port is oriented toward the tooth flank on the upstream side in the rotation direction of the tooth of the gear work.
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Abstract
Description
以下、本開示の第1実施形態を説明する。第1実施形態において、歯面が研削される歯車ワークは、外歯であるすぐ歯を有する平歯車である。
図1に示すように、歯車研削盤3は、研削機能を担う研削機構部1と、その研削機構部1にクーラント100(図3参照)を供給するクーラント供給機構部2とから構成されている。歯車ワークの研削のためにクーラント供給機構部2から研削機構部1に供給されたクーラント100はクーラント供給機構部2に回収されて濾過されるとともに、温度調節されて再度研削機構部1に供給される。このようにして、クーラント100が歯車研削盤3内において循環される。
次に、本実施形態の作用を説明する。
本実施形態においては、図2~図4に示すように、歯車ワーク23の歯26の歯面27の研削において、歯車ワーク23が砥石ツール21に噛合される。なお、砥石ツール21は、ネジ24のリード角に応じて、X軸を中心に角度調節される。この噛合状態で、砥石ツール21が矢印103の方向に回転されるとともに、歯車ワーク23が矢印104の方向に回転される。この場合、砥石ツール21は、そのネジ24が歯車ワーク23の歯溝28に対して上方から進入する方向に回転される。この噛合状態の両者21,23の回転によって歯車ワーク23の歯26の歯面27が砥石ツール21のネジ24によって研削される。
砥石ツールの直径・・・・・・300mm(ミリメートル)
砥石ツールのネジの条数・・・4
砥石ツールの回転速度・・・・毎分4100回転
歯車ワークの外径・・・・・・120mm
歯車ワークの歯数・・・・・・39
歯車ワークのモジュール・・・3
歯車ワークの回転速度・・・・毎分421回転
歯車ワークの加工時間・・・・8分47秒
〈測定結果〉
上記の条件における従来方法及び実施形態の方法において等しい研削精度を得るために必要なクーラント100の供給量は以下の通りである。
実施形態の方法における毎分ごとのクーラント供給量・・・50リットル
以上のように、実施形態の方法においては、従来方法と比較して、クーラント100の供給量を4分の1にすることが可能である。
以下に、本実施形態の効果を述べる。
(1)クーラント100が砥石ツール21と歯車ワーク23の噛合部に対して少ない無駄で効率よく取り込まれるため、噛合部に対するクーラント100の供給量を少なくすることができる。このため、研削加工に要するクーラント100の循環量を低減できる。その結果、歯車研削に用いるクーラントの量を節約できる。
(第2実施形態)
次に、本発明の第2実施形態を第1実施形態と異なる部分を中心に説明する。
次に、本発明の第3実施形態を第1実施形態と異なる部分を中心に説明する。
第3実施形態においては、図10に示すように、クーラント吐出部材31の吐出口32が前記歯車ワーク23の外径周面の回転軌跡(言い換えれば、歯26の先端の移動軌跡)に沿う形状にされている。すなわち、吐出口32の上縁部及び下縁部には、歯車ワーク23の外径面に接触することなく、前記外径周面の回転軌跡に沿って延びる円弧部321が形成されている。吐出口32の先端部には、砥石ツール21の外周面に間隔をおいて軸線βの方向に延びる接触回避部35が形成されており、砥石ツール21とクーラント吐出部材31との接触が回避されるようになっている。
(変更例)
前記各実施形態は、以下のように変更して実施することができる。そして、前記各実施形態及び以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。
・クーラント100にマイクロバブルやウルトラファインバブルを混入させること。このようにすれば、クーラント100の洗浄効果が向上して、切り屑排出がより円滑になる。
・歯車ワークを内歯のものとすること。この場合、砥石ツールは、その軸線が歯車ワークの軸線に対して傾斜されたバレル形状のものが用いられる。また、クーラント吐出部材の吐出口は、歯車ワークの内側において、砥石ツールと歯車ワークとの噛合開始側における砥石ツールと歯車ワークとの間の空間に近接して配置される。そして、吐出口は、歯車ワークの歯の回転方向上流側の歯面を指向する。
21…砥石ツール
23…歯車ワーク
24…ネジ
26…歯
27…歯面
28…歯溝
29…ネジ溝
31…クーラント吐出部材
32…吐出口
100…クーラント
101…空間
α…軸線
β…軸線
Claims (8)
- 歯車研削盤を用いた歯車ワークの歯面の研削方法であって、前記歯車研削盤は外周に研削用のネジを有する砥石ツールを備え、前記研削方法は、
前記ネジと前記歯車ワークの歯とを噛合させた状態で前記砥石ツールと前記歯車ワークとを回転させることにより前記歯面を研削することと、
前記ネジと前記歯との噛合部の噛合開始側に存在する前記砥石ツールと前記歯車ワークとの間の空間を介して、前記歯車ワークの回転方向の上流側からクーラントを前記歯面に向けて供給することと、を含む研削方法。 - 前記クーラントを、前記歯車ワークの軸線の延長方向において前記歯車ワークと少なくとも部分的に同じ位置に配置される吐出口から供給する請求項1に記載の研削方法。
- 前記クーラントを前記砥石ツールのネジ溝内に位置する歯に対して供給する請求項1に記載の研削方法。
- 前記クーラントは水性である請求項1に記載の研削方法。
- 外周に研削用のネジを有する砥石ツールと、
先端にクーラントを吐出する吐出口を有するクーラント吐出部材と、を備え、
前記ネジと歯車ワークの歯とを噛合させた状態で前記砥石ツールと前記歯車ワークとを回転させることにより前記歯車ワークの歯面を研削するとともに、前記吐出口から前記ネジと前記歯との噛合部に対して前記クーラントを供給する、ように構成される歯車研削盤において、
前記吐出口は、前記噛合部の噛合開始側に配置されており、前記砥石ツールと前記歯車ワークとの間の空間を介して、前記歯車ワークの回転方向の上流側から前記クーラントを前記歯面に向けて供給するように構成される歯車研削盤。 - 前記吐出口は、前記歯車ワークの軸線の延長方向において、少なくとも部分的に、前記歯車ワークと同じ位置に配置される請求項5に記載の歯車研削盤。
- 前記クーラントが前記砥石ツールのネジ溝内に位置する歯に対して供給されるように、前記吐出口を配置した請求項5に記載の歯車研削盤。
- 前記吐出口は前記歯車ワークの外径周面の回転軌跡に沿う形状を有する請求項5に記載の歯車研削盤。
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JP2012219962A (ja) * | 2011-04-12 | 2012-11-12 | Toyota Motor Corp | 歯車潤滑装置 |
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JP2016163912A (ja) | 2015-03-06 | 2016-09-08 | トヨタ自動車北海道株式会社 | 連続創成式歯車研削方法 |
JP2020110912A (ja) * | 2019-01-16 | 2020-07-27 | クリンゲルンベルク・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツングKlingelnberg GmbH | 歯車を検査および/または測定する装置、およびその方法 |
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JP2012219962A (ja) * | 2011-04-12 | 2012-11-12 | Toyota Motor Corp | 歯車潤滑装置 |
JP2015042445A (ja) | 2014-12-04 | 2015-03-05 | 三菱重工業株式会社 | 歯車研削盤 |
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