JP2000071121A - Honing process method for gear, and toothed dresser used for it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve honing finishing accuracy for a work with outer teeth by determining a position so as to constitute a contact skew gear with the gear-shaped work and a tool for generating a gear having inner teeth, in a device for precisely finishing a tooth surface of the gear-shaped work with the tool for generating the gear having inner teeth. SOLUTION: When outer teeth 9 of a work with outer teeth 1 is honed with a tool 2 having inner teeth such as an inner tooth 10 of honing-grinding wheel, the tool 2 having the inner teeth is rotated at a first rotation speed around the center of a gear axis of the honing-grinding wheel. The work with outer teeth 1 fixed to a support shaft 13 supported by centers 14, 14 is rotated in the same direction at a second rotation speed. The tool 2 having inner teeth and the work with outer teeth 1 are tiltingly mounted so as to have a crossing angle γ, inter-axis distance and the crossing angle γ between the tool 2 having inner teeth and the work with outer teeth 1 in a housing process are numerically controlled. Thus, the outer teeth 9 of the work with outer teeth 1 can be precisely honed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for honing a gear and a method for honing a gear in which after a gear generating tool is dressed by a dressing tool, the tooth surface of the gear-shaped work is precisely finished by the gear generating tool. It belongs to the technical field of a toothed dresser to be used.

[0002]

2. Description of the Related Art When determining the positions of a gear generating tool such as an internally toothed tool, a gear-like work or a dressing tool such as a toothed dresser and a gear generating tool, theoretically, a pair of helical gears is used. It was positioned as a screw gear and calculated. For example, when dressing an internal toothed tool with a toothed dresser, the positions of the internal toothed tool and the toothed dresser are determined at an intersection angle of approximately 10 degrees, and the cutting direction of the internal toothed tool and the toothed dresser is determined. The position was calculated as a screw gear and the position was determined. However, screw gears are those in which a pair of helical gears are used between staggered shafts.On the other hand, those made by precision machining by dressing an internally toothed tool with a toothed dresser are helical. Not a gear.

[0003] When the above-mentioned gears are considered as screw gears, the tooth surfaces naturally have point contact. However, the gears that have been precisely machined are line-contact gears. Thus, the conventional method of determining the position of the internal toothed tool and the external toothed work or the internal toothed tool and the toothed dresser,
It was positioned and calculated as a screw gear, which is a pair of helical gears. For this reason, the problem that the honing processing state and the dressing processing state cannot be accurately grasped from the prediction of the wrong contact state on the premise of the point contact has occurred.

[0004] Further, since there is no method for predicting the honing state of the conventional gear-shaped work and the dressing state of the gear generating tool in advance, for example, the honing gear is positioned as a pair of helical gears. A method has been adopted in which a position is determined by calculation, a honing test process is performed under the conditions, and a judgment is made based on the result.

[0005] Conventionally, the intersection angle has been previously determined to be approximately 10 degrees and fixed. As described above, in the method in which the intersection angle is fixed, there is also a problem that the usable margin of the grindstone is small.

[0006]

As described above, when a gear-shaped work such as a work with external teeth is precisely honed by a gear-forming tool such as a tool with internal teeth, or a gear is formed with a gear such as an internal toothed tool. When dressing a tool with a dressing tool such as a toothed dresser, there have been various problems as described above because conventionally, the tool was theoretically positioned as a screw gear. The present invention provides a solution to various problems in the honing of the gear or the dressing of the gear generating tool, assuming that the gear generating tool and the gear-shaped work or the gear generating tool and the dressing tool constitute a staggered axis contact gear. To provide.

[0007] In addition, as a method of obtaining a large usable margin of a grinding wheel for a gear generating tool such as a tool with an internal tooth, there is a method in which the crossing angle is not fixed from the beginning of the internal gear wheel honing process. It was known that the usable cost could be increased. However, under the inexperience of the grindstone design, that is, the processing state cannot be grasped as described above on the assumption of the screw gear, and the method of determining the positions of the internal toothed tool and the external toothed work or the internal toothed tool and the toothed dresser is complicated. It was not implemented for reasons such as

According to the present invention, a honing state or a dressing state can be accurately grasped on the premise of line contact by positioning and calculating a staggered axis contact gear.
A honing method of a gear, a dressing method of a gear generating tool, and a toothed dresser that can greatly improve the accuracy of honing finishing of a workpiece with external teeth by a gear generating tool and increase the usable margin of the gear generating tool. The purpose is to provide.

[0009]

According to the present invention, there is provided a method for honing a gear according to the present invention, which comprises the steps of: The position is determined so that the gear-shaped work and the internally toothed gear generating tool constitute a staggered axis contact gear.

[0010] In order to achieve the above object, a method for honing a gear according to the present invention comprises the steps of: dressing an internally toothed gear generating tool with a dressing tool; In the method of honing a gear for precision finishing, a pair of an internally toothed gear generating tool and a dressing processing tool and a pair of a gear-shaped work and an internal toothed gear generating tool are positioned so as to constitute a staggered axis contact gear. To determine.

A honing method of a gear for determining a position such that a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped workpiece and an internally toothed gear generating tool constitute a staggered axis contact gear. , The internal toothed gear generation tool such that each pair of the internal toothed gear generating tool and the dressing tool and the pair of the gear-shaped work and the internal toothed gear generating tool creates the same relative speed field as the specific relative speed field. The position of each pair of the tool and the dressing tool pair and the pair of the gear-shaped work and the internally toothed gear generating tool is determined.

A honing method of a gear for determining a position such that a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped workpiece and an internally toothed gear generating tool constitute a staggered axis contact gear. In such a manner that the relative speed at any arbitrary contact position of each pair of the pair of the internal gear generating tool and the dressing tool and the pair of the gear-like work and the internal gear generating tool is equal to the specific relative speed. The position of each pair of the internally toothed gear generating tool and the dressing tool and the pair of the gear-shaped work and the internally toothed gear generating tool is determined.

A honing method of a gear for determining a position such that a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internally toothed gear generating tool constitute a staggered axis contact gear. The internal toothed gear such that any point of each pair of the internal toothed gear generating tool and the dressing tool and the pair of the gear-shaped work and the internal toothed gear generating tool is one point on the contact surface between them. The position of each of the pair of the generating tool and the dressing tool and the pair of the gear-shaped work and the internally toothed gear generating tool is determined.

A honing method for a gear in which a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internally toothed gear generating tool are determined so as to form a staggered axis contact gear. In the internal gear tooth generating tool and the dressing tool, the arbitrary point of each pair of the internal gear tooth generating tool and the dressing tool and each pair of the gear-shaped work and the internal tooth gear generating tool are changed as needed. The position of each pair of the pair and the pair of gear-like workpieces and the internally toothed gear generating tool is determined at any time.

A honing method of a gear for determining a position such that a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internally toothed gear generating tool constitute a staggered axis contact gear. A contact state or a contact line on an effective tooth surface other than an arbitrary point of each pair of the pair of the internal toothed gear generating tool and the dressing tool and the pair of the gear-shaped work and the internal toothed gear generating tool and the arbitrary point thereof The position of each pair of the pair of the internally toothed gear generating tool and the dressing tool and the pair of the gear-shaped work and the pair of the internal toothed gear generating tool is determined.

A honing method for a gear in which a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internally toothed gear generating tool are determined so as to constitute a staggered axis contact gear. In the method of determining the position of the pair of the internal gear generating tool and the dressing tool, and the position determined by the method, the method of determining the position of the pair of the gear-like work and the internal gear generating tool, and determined by the method Make the position different.

A honing method of a gear for determining a position such that a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internally toothed gear generating tool constitute a staggered axis contact gear. In the above, the range of change of the intersection angle in the range in which the distance between the axes of the pair of the internally toothed gear generating tool and the dressing tool and the pair of the gear-like work and the internal toothed gear generating tool can be changed is reduced.

A honing method of a gear for determining a position such that a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped workpiece and an internally toothed gear generating tool constitute a staggered axis contact gear. In the above, when trimming interference occurs between the pair of the internally toothed gear generating tool and the dressing processing tool and between each pair of the gear-shaped work and the pair of the internally toothed gear generating tool, the width of the tooth width end of the internally toothed gear generating tool is reduced. The shape is detected, and each pair of a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internally toothed gear generating tool is axially moved along the shape of the detected face width end. Bite from.

A honing method of a gear for determining a position such that a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internally toothed gear generating tool constitute a staggered axis contact gear. In the above, the pair of the internal toothed gear generating tool and the dressing tool and the pair of the gear-shaped work and the internal toothed gear generating tool are used over the plus and minus sides of the intersection angle.

A honing method of a gear for determining a position such that a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internally toothed gear generating tool constitute a staggered axis contact gear. In the above method, a cycle for removing the root portion of the internally toothed gear generating tool is added to the dressing process before precision finishing of the tooth surface of the gear-shaped work.

The toothed dresser used in the method for honing a gear according to the present invention has a slit formed at the tip of the tooth of the dressing tool for removing the grindstone bottom of the internally toothed gear generating tool.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a gear honing method according to the present invention will be described with reference to FIGS. 1 and 2 show a situation in which the external teeth 9 of the work 1 with external teeth are honed by the internal teeth 10 of the internal toothed tool 2, for example, the honing stone, and the internal toothed tool 2 is a honing stone. around the center 26 of the gear shaft is rotated in the direction of an arrow at omega ₁ of the rotational speed, the center 14, 14
External toothed workpiece 1 fixed to a support shaft 13 which is supported is rotated in the arrow direction about the central 25 of the support shaft 13 at a rotational speed omega _2, the external teeth 9 of the external teeth work 1 Honing Is done. The internally toothed tool 2 and the externally toothed work 1 are mounted so as to be inclined so as to have an intersection angle γ, and the externally toothed 9 of the work 1 is in the honing process and the internally toothed tool 2 and the externally toothed work 1 are attached. And the intersection angle γ are numerically controlled. Reference numeral 15 denotes a tool holder, and 16 denotes a presser.

FIGS. 3 and 4 show a state in which the internally toothed tool 2 for honing the external teeth 9 of the externally toothed work 1 is dressed by the dress gear 3 as a pre-process. This shows a situation in which the internal teeth 10 of the internally toothed gear generating tool, that is, the internal toothed tool 2 are dressed by the teeth 11 of the dress gear 3, and the internal toothed tool 2 is located at the center 26 of the honing grindstone gear shaft. around rotating in the arrow direction in omega ₁ of the rotational speed. The dress gear 3 fixed to the support shaft 13 supported by the centers 14, 14 rotates around the center 25 of the support shaft 13 in the direction of the arrow at the rotation speed ω ₂ , and the internal teeth 10 of the internal toothed tool 2 are rotated. It is dressed. The internally toothed tool 2 and the dress gear 3 are attached to be inclined so as to have a cross angle γ.
The center distance a and the intersection angle γ between the internally toothed tool 2 and the dress gear 3 in the dressing process 1 are numerically controlled. Reference numeral 15 denotes a tool holder, and 16 denotes a presser.

As shown in FIGS. 1 to 4, the internally toothed tool 2
After dressing by the dress gear 3, the surface of the teeth 9 of the gear-shaped work, that is, the work 1 with external teeth, is precisely finished. However, in this case, when the internal teeth 10 of the internal toothed tool 2 can sufficiently finish the external teeth 9 of the externally toothed work 1, the dressing process is omitted. Note that a period from the dressing process to the dressing process is referred to as a dress interval.

The position of each pair of the internally toothed tool 2 and the dress gear 3 and the pair of the gear-shaped work 1 and the internally toothed tool 2 is determined so as to be staggered from each other to form an axial contact gear. The external teeth 9 of the work 1 with external teeth are precision machined by the tool 2 with internal teeth.

As shown in FIG. 5, as an example of the toothed dresser used in the method for dressing an internally toothed gear generating tool according to the present invention, a toothed dresser 3 is used for processing an externally toothed work 1. A plurality of slits 19 are provided at substantially equal intervals in the tooth width direction at the distal end portions 18 of the gear teeth 11 for dressing the grindstone surface of the internally toothed tool 2. The tip 18 of the tooth 11 of the toothed dresser 3 that is severely worn
Since the plurality of slits 19 are provided at substantially equal intervals in the tooth width direction of the toothed portion, the tip portions 18 of the teeth 11 of the toothed dresser 3 are formed.
The area of the grinding wheel increases, and the tooth bottom of the grinding stone can be easily removed. In addition, the wear of the tips 18 of the teeth 11 of the toothed dresser 3 can be reduced, and the life of the toothed dresser 3 can be extended.

A honing method for a gear according to the present invention will be described with reference to FIG. 6, which is a schematic view showing a positional relationship among a honing grindstone shaft, an intermediate gear shaft, and a work gear shaft in the method for honing a gear according to the present invention. The second embodiment will be described. The honing wheel gear shaft 4 of the internally toothed tool 2 is
It rotates in the direction of the arrow at the rotation speed of ω ₁ , and maintains the inter-axis distance a between the honing wheel gear shaft 4 and the dress gear shaft 6. The dress gear shaft 6 moves in the direction of the arrow at the rotation speed of ω _2. It is spinning. And the relative speed of both creates a field of screw movement around the instantaneous axis 7 between them. Here, a third gear shaft, namely the intermediate gear shaft 5, is conceivable.
In this embodiment, a theory using the intermediate gear shaft 5 as an intermediate is used. In this case, if the positions of the internal toothed tool 2 and the toothed dresser 3 are determined so as to produce a specific relative speed, for example, the same relative speed as the start of use of the grindstone, the same contact line as at the start of use of the grindstone is obtained. Can be In addition, 8 is these 3
Γ is a tool 2 with internal teeth and a workpiece 1 with external teeth
23 indicates the relative speed between the honing grindstone and the dress gear.

A third embodiment of the present invention will be described with reference to FIG. 7 which is a schematic view showing the positional relationship among a honing grindstone gear shaft, an instantaneous shaft and a dress gear shaft in the gear honing method according to the present invention. . For example, toothed dresser 3
The positions of the dress gear 3 and the instantaneous shaft 7 are determined so that the relative speed at an arbitrary contact position between the wheel and the grinding wheel is equal to a specific relative speed, for example, when the grinding wheel starts to be used. 22 is a screw spiral, 23 is an arc approximation line, and 24 is a relative velocity vector at the point P. 7 between the honing wheel gear shaft 4 and the dress gear shaft 6 is an instantaneous axis. In this way, the relative speed field at one point P on the tooth surface is given to determine the mating gear axis.

A fourth embodiment of the present invention will be described with reference to FIG. 8, which is a schematic view showing a positional relationship between a honing grindstone shaft and a dress gear shaft in the gear honing method according to the present invention. For example, focusing on a point on the tooth surface 17 of the dress gear 3, it is determined that only the surface normal of this point satisfies the contact condition under the desired relative motion. For example, when the distance a between the two axes of the internally toothed tool 2 and the dress gear 3 and the rotation ratio are determined, the normal line n of the dress gear surface at an arbitrary point P on the tooth surface 17 at an arbitrary position of the dress gear 3 is a contact condition. Is determined so as to satisfy

A fifth embodiment of the present invention will be described with reference to FIG. 9 which is a schematic view showing the positional relationship between a honing grindstone shaft and a dress gear shaft in the gear honing method according to the present invention. For example, a trajectory of a contact point on a dress gear, for example, an arbitrary curve on a contact surface at an initial position, and an axis such that a surface normal of the arbitrary point satisfies a condition of contact under a desired relative motion. Determine the relationship. For example, if the distance between the two shafts and the rotation ratio are kept constant, the intersection angle γ changes continuously. On the gear face of the toothed dresser 3, a line 21 indicating the trajectory of an arbitrary contact line is given, and the normal n of the tooth face 17 of the dress gear 3 at all points above this under the required rotation ratio is When the axial relationship is determined so as to satisfy the contact condition, for example, when the distance a between both axes and the rotation ratio are fixed, the intersection angle γ changes continuously.

FIG. 10 is a graph showing the state of creation of a grinding wheel surface in a sixth embodiment of the gear honing method according to the present invention, and FIG. 11 is a graph showing an example of the form of a contact line in the sixth embodiment. It is. Thus, the dress gear 3
The contact state of the entire tooth surface 17 and the form of the contact line, such as the magnitude and direction of the relative slip, can be grasped, and the tooth surface 17 and the honing surface of the externally toothed work 1 can be controlled, and curvature interference, the second type The axis position can be determined so as to avoid the interference such as the interference.

As described above, the contact state and contact line form of the entire tooth surface 17, the form of the tooth surface of the grindstone after the dressing processing, and the state when the grindstone and the work 1 with external teeth are engaged can be known. By changing the axial positional relationship between the dressing process and the honing process and how to determine the position, a required tooth surface, for example, a corrected tooth surface, can be easily created.

FIG. 12 is a graph showing the relationship between the inter-axis distance expansion amount and the intersection angle in the seventh embodiment of the gear honing method according to the present invention. L1 is a line in which the range of the intersection angle γ is selected to be small, L2 is a normal selection line of the intersection angle γ, and S is a practically usable range of the intersection angle γ. According to this graph, for example, the center distance a and the intersection angle γ can be selected within a practically usable range, so that, for example, the intersection angle γ is prevented from becoming 0 °, and a jig, a loader, etc. In order to avoid the interference, the range of the intersection angle γ or the intersection angle γ can be selected to be small. In addition, by selecting a small intersection angle range, the amount of dressing processing per operation can be reduced, so that the total number of honing processing can be increased.

For example, when the torsion angle of the grindstone is increased by increasing the intersection angle γ, so-called trimming interference, which cannot move and engage in the radial direction, may occur. In this case, if there is trimming interference between the internally toothed tool 2 and the toothed dresser 3, the range of use of the grindstone is limited. In the present invention, the tooth width 12 of the internally toothed tool 2 is
By detecting the shape of the end and engaging the internal toothed tool 2 and the toothed dresser 3 in the axial direction, the surface of the grindstone of the internal toothed tool 2 is created by the toothed dresser 3. Since the shape of the grindstone in the tooth width direction can be grasped, the meshing by the axial movement can be performed not only in the case of the forced synchronization but also in the case of the orientation by the co-rotation.

For example, when the distance L between the two axes of the internally toothed tool 2 and the toothed dresser 3 is increased, the intersection angle γ on the specifications of the processed gear may become 0 °. Traditionally, in these cases,
Although it was used up to the point where the intersection angle γ becomes 0 °, the dressing method of the inner teeth 10 surface of the internally toothed tool 2 used across the plus side and the minus side of the intersection angle γ according to the present invention does not Since the angle γ exceeds 0 ° and is used across the + side and the − side (passing 0 °) of the intersection angle γ, the use amount of the grindstone is greatly increased.

As the distance a between the axes of the internally toothed tool 2 and the toothed dresser 3 is increased, the internally toothed tool 2 is dressed, for example, by about 30 mm in the radial direction. In this case, since the tip of the tooth tip of the toothed dresser 3 is severely worn, for example, a cycle of removing the root portion of the internally toothed tool 2 using the toothed dresser 3 for removing the root of the grindstone is performed. When added, the tooth bottom portion can be easily removed. This dressing method may be performed incidentally in a cycle other than the tooth surface dress.

In the honing machine, for example, the position axis of the internal toothed tool 2 and the position axis of the toothed dresser 3 are in a three-dimensional positional relationship. The rotation of the rotating shaft of the toothed dresser 3 and the forced rotation can be synchronized.

Conventionally, since the intersection angle γ was determined in advance at about 10 ° and fixed in advance, there was only a small allowance for the use of the grindstone. However, according to the present invention, the usable allowance for the grindstone can be increased. it can. Further, for example, the present invention for determining the position of both axes of the internally toothed tool 2 and the externally toothed work 1 or the inner toothed tool 2 and the toothed dresser 3 and the intersection angle γ makes it possible to use the grinding stone reliably and easily. You can increase your bill.

[0039]

According to the method for honing a gear according to the present invention, it is possible to easily create a required tooth surface, for example, a corrected tooth surface, by changing the axial positional relationship between the dressing process and the honing process and how to determine the position. In addition to this, the use allowance of the grindstone is greatly increased, and further, by selecting a small intersection angle range, the amount of dressing processing per operation can be reduced, so that the total number of honing processing can be increased.

The method for honing a gear according to the present invention can also grasp the shape of the grindstone in the face width direction, and can perform the meshing by the axial movement even in the case of forced synchronization as well as in the case of co-rotating orientation. And the effect that the usable amount of the grindstone can be increased reliably and easily.

The toothed dresser used in the gear honing method according to the present invention can increase the area of the tip, increase the rate of removing the root of the grindstone, and reduce the consumption of the tip. This has the effect that the life of the toothed dresser can be extended.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a first method of honing a gear according to the present invention.
It is an explanatory view showing a part in section for explaining a physical relationship between a gear-like work and an internally toothed gear generating tool in an example.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

FIG. 3 is a diagram showing a first example of the gear honing method according to the present invention.
It is an explanatory view showing a part in section for explaining a physical relationship between a toothed dresser and an internal geared gear generating tool in an example.

FIG. 4 is a sectional view taken along line BB of FIG. 2;

FIG. 5 is a perspective view showing a part of a toothed dresser used in the method for honing a gear according to the present invention.

FIG. 6 shows a second example of the gear honing method according to the present invention.
It is a schematic diagram which shows the positional relationship of the honing grindstone axis | shaft, intermediate gear axis | shaft, and a dress gear axis | shaft in an Example.

FIG. 7 is a diagram showing a third example of the gear honing method according to the present invention.
It is a schematic diagram which shows the positional relationship of the grinding wheel gear shaft for honing, an instantaneous axis, and a dress gear axis in an Example.

FIG. 8 shows a fourth example of the gear honing method according to the present invention.
It is a schematic diagram which shows the positional relationship of the honing grindstone axis | shaft, a dress gear axis | shaft, and a tooth surface in an Example.

FIG. 9 shows a fifth example of the gear honing method according to the present invention.
It is a schematic diagram which shows the positional relationship of the honing grindstone axis | shaft, a dress gear axis | shaft, and a tooth surface in an Example.

FIG. 10 is a graph showing how a grinding wheel surface is created in a sixth embodiment of the gear honing method according to the present invention.

FIG. 11 is a graph showing an example of a contact line in a sixth embodiment of the gear honing method according to the present invention.

FIG. 12 is a graph showing a relationship between an inter-axis distance expansion amount and an intersection angle in a seventh embodiment of the gear honing method according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Externally toothed work 2 Internally toothed tool 3 Dress gear 4 Honing grinding wheel gear shaft 5 Intermediate gear shaft 6 Dress gear shaft 7 Instantaneous shaft 8 Common perpendicular line 9 Work external teeth 10 Tool internal teeth 11 Dress gear teeth 17 Dress Gear Tooth Surface 18 Dress Gear Tooth Tip 19 Slit a Axle Distance γ Crossing Angle

Continued on the front page (72) Inventor Akira Takenoshita 2139 Kami Naoe, Okawa, Hikawa-cho, Hikawa-gun, Shimane 5 Inside the Izumo Plant of Seiwa Iron Works Co., Ltd. Inside the company (72) Inventor Tatsuro Takami 1 Toyota Town, Toyota City, Aichi Prefecture Inside Toyota Motor Co., Ltd. (72) Inventor Teruo Higashi 4 1402 Higashiikejiri, Osaka Sayama City, Osaka 1 Asano Gear Works (72) ) Inventor Hiroshi Korihara 249, Hoyoshicho, Matsue-shi, Shimane Prefecture F-term (reference) 3C047 AA35 CC12 DD12 EE16

Claims (13)

[Claims] In a honing method for a gear, wherein a tooth surface of a gear-shaped work is precisely finished by using an internally toothed gear generating tool, the gear-shaped work and the internally toothed gear generating tool are positioned so as to constitute a staggered axis contact gear. A honing method for a gear, comprising: 2. A method for honing a gear, comprising the step of dressing an internally toothed gear generating tool with a dressing tool and then precisely finishing the tooth surface of the gear-like work with the internally toothed gear generating tool. A honing method for a gear, comprising: determining a position such that a pair of a tool and a dressing tool and a pair of a gear-shaped work and a pair of internally toothed gear generating tools constitute a staggered axis contact gear. 3. An internal tooth such that each pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-like work and an internally toothed gear generating tool creates a relative velocity field equal to a specific relative velocity field. The position of each of a pair of a gear generating tool and a dressing tool and a pair of a gear-like work and a pair of internal toothed gear generating tools is determined. Honing processing method. 4. The relative speed at any contact position of each pair of an internal gear generating tool and a dressing tool, and each pair of a gear-like work and an internal gear generating tool, is made equal to a specific relative speed. 3. The position of each pair of a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and a pair of internally toothed gear generating tools is determined. Honing method for gears. 5. An internal gear such that an arbitrary point of each pair of a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internal toothed gear generating tool is one point on a contact surface between them. The gear according to claim 1 or 2, wherein a position of each pair of a pair of a toothed gear generating tool and a dressing tool and a pair of a gear-like work and a pair of an internal toothed gear generating tool is determined. Honing method. 6. An internally toothed gear generating tool and a dressing while changing any point of each pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internally toothed gear generating tool as needed. The position of each pair of a pair of processing tools and a pair of a gear-shaped work and a pair of internally toothed gear generating tools is determined as needed. Honing method for gears. 7. A contact state at an arbitrary point of each pair of a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-like work and an internally toothed gear generating tool and an effective tooth surface other than the arbitrary point. The position of each pair of a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and a pair of internal toothed gear generating tools is determined by the form of the contact line. A honing method for a gear according to claim 2 or claim 4 or claim 5. 8. A method for determining the position of a pair of an internally toothed gear generating tool and a dressing tool, and a method for determining the determined position and the position of a pair of a gear-like work and an internally toothed gear generating tool. The method according to claim 1 or 2, wherein the determined positions are made different. 9. The range of change of the crossing angle within a range in which the distance between the axes of the pair of the internally toothed gear generating tool and the dressing tool and the pair of the gear-shaped work and the internally toothed gear generating tool can be changed. The honing method for a gear according to claim 1 or 2, wherein the honing method is performed. 10. When trimming interference occurs in each pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-shaped work and an internally toothed gear generating tool, the tooth width of the internally toothed gear generating tool is determined. The shape of the end is detected, and each pair of a pair of an internally toothed gear generating tool and a dressing tool and a pair of a gear-like work and an internally toothed gear generating tool is respectively aligned along the shape of the detected face width end. The honing method for a gear according to claim 1 or 2, wherein the gears are meshed in an axial direction. 11. The method according to claim 1, wherein the pair of the internally toothed gear generating tool and the dressing tool and the pair of the gear-shaped work and the internal toothed gear generating tool are used over the positive and negative sides of the intersection angle. The honing method for a gear according to claim 1 or 2, wherein 12. The method according to claim 1, wherein a cycle of removing a root portion of the internally toothed gear generating tool is added to the dressing process before precision finishing of the tooth surface of the gear-shaped work. The honing method of the described gear. 13. A toothed dresser for use in a gear honing method, wherein a slit is provided at a tip of a tooth of a dressing tool for removing a grindstone tooth bottom of an internally toothed gear generating tool.