阅读说明：本技术 一种准双曲面齿轮设计加工方法 (Hypoid gear design and machining method ) 是由 汪慧君 鲁世平 于继静 张旭 姚杰 朱少靖 贾一凡 章巍松 吕传贵 周冠杰 石恒 于 2021-09-01 设计创作，主要内容包括：本发明公开了一种准双曲面齿轮设计加工方法,具体步骤如下,S1、将刀具装入机床；S2、运行凸面加工程序,使X,Y,Z,A轴联动,即可加工出齿轮的凸面,然后退刀；S3、工件轴偏转到凹面加工位置进行加工；S4、运行专用凹面加工程序即可加工出齿轮的凹面；S5、然后工件轴偏转到下一个齿,重复S2～S5步骤,直至工件加工完成。本发明采用四轴联动数控铣齿机一次装夹,同一副刀具,通过机床上滚加工一个面,下滚加工另一个面的方式完成准双曲面齿轮的加工。(The invention discloses a hypoid gear design processing method, which comprises the following steps of S1, installing a cutter into a machine tool; s2, operating a convex surface processing program to enable the X, Y, Z and A shafts to be linked, so that the convex surface of the gear can be processed, and then retracting the cutter; s3, deflecting the workpiece shaft to a concave surface machining position for machining; s4, the concave surface of the gear can be processed by running the special concave surface processing program; s5, deflecting the workpiece shaft to the next tooth, and repeating the steps S2-S5 until the workpiece is machined. The invention adopts a four-axis linkage numerical control gear milling machine to clamp at one time, and completes the processing of the hypoid gear by the way that one surface is processed by rolling on the machine tool and the other surface is processed by rolling down.)

1. A hypoid gear design processing method is characterized in that: calculating reasonable contact areas of two surfaces of the gear by software design under the condition that the diameters of inner and outer cutting edges of the same pair of cutters are limited, solving the relative position between the cutter and a wheel blank by a production machining principle to obtain an adjustment parameter, and finishing the machining of two tooth surfaces of a small wheel by realizing the upper rolling and the lower rolling on a numerical control gear milling machine simultaneously by compiling numerical control gear milling machine machining software;

the method comprises the following specific steps:

s1, installing the cutter into a machine tool;

s2, operating a convex surface processing program to enable the X, Y, Z and A shafts to be linked, so that the convex surface of the gear can be processed, and then retracting the cutter;

s3, deflecting the workpiece shaft to a concave surface machining position for machining;

s4, the concave surface of the gear can be processed by running the special concave surface processing program;

s5, deflecting the workpiece shaft to the next tooth, and repeating the steps S2-S5 until the workpiece is machined.

2. The hypoid gear design machining method according to claim 1, characterized in that: the machining parameters of the two surfaces of the gear are different, and the gear is finished by clamping the same cutter on the same machine tool at one time.

3. The hypoid gear design machining method according to claim 1, characterized in that: the convex surface of the hypoid gear is machined by the inner blade of the cutter.

4. The hypoid gear design machining method according to claim 1, characterized in that: the concave surface of the hypoid gear is processed by adopting the outer cutter edge of the cutter.

Technical Field

The invention relates to a gear machining method, in particular to a hypoid gear design machining method.

Background

The hypoid gear small wheel is generally processed by a single-face method or a full-process method, and a machine tool for processing the small wheel in the full-process method is a five-axis linkage numerical control gear milling machine.

The common spiral bevel gear is a crossed shaft transmission tooth surface and is a circular arc contraction tooth, the track of a plane shovel wheel can be formed only by adopting G03 code assignment X, Y, Z and A shaft linkage during numerical control machining, so that the spiral bevel gear can be machined by adopting a four-shaft linkage machine tool, a hypoid gear is a single-blade hyperboloid with a staggered shaft transmission tooth surface, and a helical motion axis of the staggered shaft transmission is helical motion and rotates around the axis of each gear to form a pair of single-blade hyperboloids. The hyperboloid is tangent to the axis of helical movement, i.e. the instantaneous axis of relative movement. During design and processing, X, Y, Z, A and U axes are needed to be linked to process the tooth surface of the hypoid gear, which is a full-process method, or the two surfaces of the gear teeth of the hypoid gear are processed by adopting cutters with different radiuses by adopting a single-face method, and the single-face method is not easy to realize for the structural reason of the hypoid gear with small modulus.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a design and processing method of a hypoid gear, which adopts a four-axis linkage numerical control gear milling machine to clamp at one time, and completes the processing of the hypoid gear by the way that one surface is processed by rolling on the machine tool and the other surface is processed by rolling down.

The hypoid gear design processing method is realized by the following technical scheme, and comprises the following specific steps:

s1, installing the cutter into a machine tool;

s2, operating a convex surface processing program to enable the X, Y, Z and A shafts to be linked, so that the convex surface of the gear can be processed, and then retracting the cutter;

s3, deflecting the workpiece shaft to a concave surface machining position for machining;

s4, the concave surface of the gear can be processed by running the special concave surface processing program;

s5, deflecting the workpiece shaft to the next tooth, and repeating the steps S2-S5 until the workpiece is machined.

As the preferred technical scheme, the machining parameters of the two surfaces of the gear are different, but the gear is finished by clamping the same cutter on the same machine tool at one time.

As a preferable technical means, in S2, the convex surface of the hypoid gear is machined using the inner edge of the cutter.

As a preferable technical solution, in S3, the concave surface of the hypoid gear is machined using the outer edge of the cutter.

The invention has the beneficial effects that: the invention adopts a four-axis linkage numerical control gear milling machine to clamp at one time, and completes the processing of the hypoid gear by the way that one surface is processed by rolling on the machine tool and the other surface is processed by rolling down.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of the process of the present invention.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "central", "end", "length", "outer end", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.

Further, in the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The use of terms such as "upper," "above," "lower," "below," and the like in describing relative spatial positions herein is for the purpose of facilitating description to describe one element or feature's relationship to another element or feature as illustrated in the figures. The spatially relative positional terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.

In the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "sleeved," "connected," "penetrating," "plugged," and the like are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1, the hypoid gear design processing method of the present invention includes the following specific steps:

s1, installing the cutter into a machine tool;

s2, operating a convex surface processing program to enable the X, Y, Z and A shafts to be linked, so that the convex surface of the gear can be processed, and then retracting the cutter;

s3, deflecting the workpiece shaft to a concave surface machining position for machining;

s4, the concave surface of the gear can be processed by running the special concave surface processing program;

s5, deflecting the workpiece shaft to the next tooth, and repeating the steps S2-S5 until the workpiece is machined.

In the embodiment, the machining parameters of the two surfaces of the gear are different, but the gear is clamped on the same machine tool once by the same cutter.

In this embodiment, in S2, the convex surface of the hypoid gear is machined using the inner edge of the cutter.

In this embodiment, in S3, the concave surface of the hypoid gear is machined using the outer edge of the cutter.

In the present embodiment, the first and second electrodes are,

the parameters of the convex surface are as follows: the parameters of the concave surface are as follows:

root cone angle

Horizontal wheel position

Bed position

Basic cradle Angle

Initial cradle angle

End cradle Angle

Radial tool position

Vertical wheel position

Roll to roll ratio

And the concave surface and the convex surface of the hypoid gear adopt different parameters.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.