CN209811114U - Spline gear rubbing cutter with guiding processing function - Google Patents
Spline gear rubbing cutter with guiding processing function Download PDFInfo
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- CN209811114U CN209811114U CN201920144900.1U CN201920144900U CN209811114U CN 209811114 U CN209811114 U CN 209811114U CN 201920144900 U CN201920144900 U CN 201920144900U CN 209811114 U CN209811114 U CN 209811114U
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Abstract
The utility model relates to a spline of area direction processing is rubbed with hands tooth sword, including cutter body and spline tooth, its characterized in that: the cutter body is provided with rough gear rolling, fine gear rolling, calibration teeth and withdrawing teeth which are sequentially arranged, and the rough gear rolling, the fine gear rolling, the calibration teeth and the withdrawing teeth are sequentially distributed along the length direction of the cutter body; the spline teeth comprise normal teeth and tooth removing sections.
Description
The technical field is as follows:
the utility model relates to a gear rolling device of axle spline processing, concretely relates to spline of area direction processing is rubbed with hands tooth sword.
Background art:
with the rapid development and the continuous development of the automotive industry, the automotive parts industry has come up with new opportunities and challenges. Connecting parts such as a steering shaft, a driving shaft, a transmission shaft and the like in automobile parts are provided with external splines, the traditional external splines are mainly formed by flat-tooth gear rolling cutters, the axial interface of the formed external splines is of a straight structure, and workpieces are mainly connected with the workpieces with internal splines in a matched mode through the external splines. Although the forming scheme of the existing flat-tooth spline gear rolling cutter can meet the forming requirement of the outer spline gear rolling of a workpiece, certain performance restriction exists in the use and assembly of the formed outer spline workpiece, mainly shows the guidance and uniqueness of the assembly, the assembly can be carried out at any angle and in any direction due to the structural design of the straight-tooth spline, certain limitation exists in the spline structure of the straight spline under the action of external force, the shaking and abnormal sound of a vehicle body can be increased, the spline is damaged and fails, and the service life is short.
The utility model has the following contents:
in order to solve the technical problem, the utility model provides a spline of area direction processing is rubbed with hands tooth sword.
The technical proposal of the utility model for solving the technical problem is that: the utility model provides a spline of area direction processing is rubbed with hands tooth sword, includes cutter body and spline tooth, its characterized in that: the cutter body is provided with rough gear rolling, fine gear rolling, calibration teeth and withdrawing teeth which are sequentially arranged, and the rough gear rolling, the fine gear rolling, the calibration teeth and the withdrawing teeth are sequentially distributed along the length direction of the cutter body; the spline teeth comprise normal teeth and tooth removing sections.
Further, the distance between the tooth top and the tooth bottom of the coarse thread rolling teeth is smaller than the distance between the tooth top and the tooth bottom of the calibration tooth teeth.
Further, the tooth crest height of the upper teeth of the withdrawing teeth is gradually increased in the direction from one end of the withdrawing part far away from the fine thread rolling teeth to the end of the withdrawing teeth close to the fine thread rolling teeth.
Furthermore, the tooth roots of the coarse thread rolling teeth and the tooth roots of the upper teeth of the calibration teeth are all at the same height.
Further, the distance between the tooth top and the tooth root of the upper teeth of the rough gear set gradually increases from one end of the rough gear set, which is far away from the fine gear set, to the direction in which the end of the rough gear set, which is connected with the fine gear set, extends.
Furthermore, the partial tooth shapes of the rough rolling teeth, the calibration teeth and the withdrawing teeth adopt a tooth removing structure design, namely, on the longitudinal section of the tooth, a tooth removing section and normal teeth adopt an upper step shape and a lower step shape, and the middle parts of the tooth removing section and the normal teeth are connected through a chamfer.
Furthermore, the machined product has one end of the two splines and one end of the spline is meshed with the round of teeth of the external spline, the external spline workpiece can be matched with the internal spline of the removed teeth, the assembly is guaranteed, the matched tightness is increased, and the motion rigidity of the transmission pair is improved.
Furthermore, quality defects such as scratches and burrs can not be caused on the surface of a product when the workpiece is processed, and the method is safe and reliable.
The application provides a spline gear rolling sword of area direction processing, the processing of external splines such as mainly used processing direction spindle, drive shaft, transmission shaft, the gear rolling sword comprises thick gear rolling, smart gear rolling, calibration tooth and withdrawal tooth, and structural design is reasonable, retrench, and the processing product precision is high. When the parts are subjected to gear rolling processing, certain pressure is applied to the surface layers of the parts by using the gear rolling cutter, so that the metal on the surface layers of the parts is subjected to plastic deformation, the roughness and hardness of products are improved, and finally gear rolling is carried out to form a parallel spline. With the cutting process mode of using at present in the metallic fiber be the difference of disconnection, the utility model discloses a metallic fiber that the spline of area direction processing was rubbed the tooth sword processing with the hands is continuous, therefore, utilizes the utility model discloses the spline of processing has following technological effect:
(1) the surface roughness of the processed workpiece is improved;
(2) the hardness and the strength of the surface metal of the processed workpiece are improved, and particularly, the surface hardness of the teeth or the tooth bottoms is greatly increased; c. after the twisting processing, two sides of the tooth top of the spline are in arc transition;
(3) the method has good economic benefit, can improve the working efficiency by several times to dozens of times compared with cutting processing, is easy to realize automation, has high production efficiency in mass production and has long service life of the cutter;
(4) the spline gear rolling processing is chipless processing, so that raw materials can be saved;
(5) and the machined workpiece is combined with teeth, so that the assembly precision is greatly improved, and the engagement degree of the assembly is improved.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present application;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is a front view of the present application;
FIG. 4 is a cross-sectional view taken at B-B of FIG. 3;
FIG. 5 is an enlarged view at C in FIG. 4;
fig. 6 is a state diagram of the machined workpiece.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-6, 1, a spline gear rolling cutter with guiding processing comprises a cutter body 1 and spline teeth 2, wherein the cutter body 1 is provided with rough gear rolling, fine gear rolling, calibration teeth and withdrawing teeth which are sequentially arranged, and the rough gear rolling, the fine gear rolling, the calibration teeth and the withdrawing teeth are sequentially distributed along the length direction of the cutter body; the spline teeth comprise normal teeth and tooth removing sections.
The left side of the spline tooth 2 is connected with the right side of the spline tooth 2, the tooth crest of the spline tooth 2 sequentially comprises a tooth crest left section 21 and a tooth crest tooth removing section 22, the middle of the tooth crest left section 21 is connected with the middle of the tooth crest tooth removing section 22 through a chamfer, and the tooth crest left section 21 is in smooth transition with the left end surface, the front side and the rear side of the spline tooth 2; the tooth top right section 22 and the right end surface, the front side and the rear side of the spline tooth 2 are in smooth transition.
The tooth top left section 21 and the tooth top right section are not at a height, teeth are removed according to the number of the spline teeth, one tooth is removed in one circle, the structure enables the spline tooth form 2 to form a convex surface on two spline surfaces after one circle of processing, and the convex surface is used for forming the tooth-removed spline
And the distance between the tooth top and the tooth root of the coarse thread rolling tooth is smaller than the distance between the tooth top and the tooth root of the calibration tooth.
The tooth top height of the upper teeth of the withdrawing teeth is gradually increased in the direction from one end of the withdrawing part far away from the fine thread rolling teeth to one end of the withdrawing teeth close to the fine thread rolling teeth.
The tooth roots of the upper teeth of the rough gear and the calibration teeth are all at the same height.
The distance between the tooth top and the tooth root of the upper teeth of the rough gear set is gradually increased from one end of the rough gear set, which is far away from the fine gear set, to the direction in which the end of the rough gear set, which is connected with the fine gear set, extends.
The coarse rolling teeth, the calibration teeth and the withdrawing teeth are designed in a tooth removing structure, namely, on the longitudinal section of the teeth, tooth removing sections and normal teeth are in an upper-lower stepped shape, and the middle parts of the tooth removing sections and the normal teeth are connected through chamfers.
One end of each spline is arranged on one circle of teeth of the external spline of the processed product, and the teeth are arranged on the other end of the spline, and the external spline workpiece can be matched with the internal spline to ensure assembly, so that the matched tightness is increased, and the motion rigidity of a transmission pair is improved.
The quality defects such as scratches, burrs and the like on the surface of a product can not be caused when a workpiece is processed, and the method is safe and reliable.
The application provides a spline gear rolling sword of area direction processing, the processing of external splines such as mainly used processing direction spindle, drive shaft, transmission shaft, the gear rolling sword divide into thick gear rolling, smart gear rolling, calibration tooth and withdraws from the tooth part, and structural design is reasonable, retrench, and the processing product precision is high. According to the method, the gear rolling cutter is utilized to extrude the surface layer of the part to form the gear-rolling spline, so that the metal on the surface layer of the part is subjected to plastic denaturation, and the roughness and hardness of the product are improved.
This application has the difference that is showing with the cutting process mode that adopts at present, and the inside metal fiber of the work piece of this application area direction processing's spline gear rubbing sword processing is continuous. Thus, the machined workpiece has the following advantages:
a. the surface roughness of the processed workpiece is improved.
b. The hardness and the strength of the surface metal of the processed workpiece are improved, and particularly, the surface hardness of the teeth or the tooth bottoms is greatly increased.
c. After the spline tooth tops are processed by twisting, the two sides of the spline tooth tops are in arc transition.
d. The method has good economic benefit, can improve the working efficiency by several times to dozens of times compared with cutting processing, is easy to realize automation, has high production rate in mass production and has long service life of the cutter.
e. The spline gear rolling processing is chipless processing, and raw materials can be saved.
f. The machined workpiece is parallel in teeth, so that the assembling accuracy is greatly improved, and the engagement degree of the assembly is improved.
Claims (8)
1. The utility model provides a spline of area direction processing is rubbed with hands tooth sword, includes cutter body and spline tooth, its characterized in that: the cutter body is provided with rough gear rolling, fine gear rolling, calibration teeth and withdrawing teeth which are sequentially arranged, and the rough gear rolling, the fine gear rolling, the calibration teeth and the withdrawing teeth are sequentially distributed along the length direction of the cutter body; the spline teeth comprise normal teeth and tooth removing sections.
2. The spline gear rolling cutter with guide processing according to claim 1, characterized in that: and the distance between the tooth top and the tooth root of the coarse thread rolling tooth is smaller than the distance between the tooth top and the tooth root of the calibration tooth.
3. The spline gear rolling cutter with guide processing according to claim 1, characterized in that: the tooth top height of the upper teeth of the withdrawing teeth is gradually increased in the direction from one end of the withdrawing part far away from the fine thread rolling teeth to one end of the withdrawing teeth close to the fine thread rolling teeth.
4. The spline gear rolling cutter with guide processing according to claim 1, characterized in that: the tooth roots of the upper teeth of the rough gear and the calibration teeth are all at the same height.
5. The spline gear rolling cutter with guide processing according to claim 1, characterized in that: the distance between the tooth top and the tooth root of the upper teeth of the rough gear set is gradually increased from one end of the rough gear set, which is far away from the fine gear set, to the direction in which the end of the rough gear set, which is connected with the fine gear set, extends.
6. The spline gear rolling cutter with guide processing according to any one of claims 1 to 5, wherein: the coarse rolling teeth, the calibration teeth and the withdrawing teeth are designed in a tooth removing structure, namely, on the longitudinal section of the teeth, tooth removing sections and normal teeth are in an upper-lower stepped shape, and the middle parts of the tooth removing sections and the normal teeth are connected through chamfers.
7. The spline gear rolling cutter with guide processing according to any one of claims 1 to 5, wherein: the one-circle tooth of the external spline of the processed product has one end of two splines and is toothed, and the external spline workpiece can be matched with the internal spline of the removed tooth to ensure assembly, so that the matched tightness is increased, and the motion rigidity of a transmission pair is improved.
8. The spline gear rolling cutter with guide processing according to any one of claims 1 to 5, wherein: the quality defects of scratching, burrs and the like on the surface of a product can not be caused when the workpiece is processed, and the method is safe and reliable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144900.1U CN209811114U (en) | 2019-01-28 | 2019-01-28 | Spline gear rubbing cutter with guiding processing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920144900.1U CN209811114U (en) | 2019-01-28 | 2019-01-28 | Spline gear rubbing cutter with guiding processing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209811114U true CN209811114U (en) | 2019-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920144900.1U Active CN209811114U (en) | 2019-01-28 | 2019-01-28 | Spline gear rubbing cutter with guiding processing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209811114U (en) |
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2019
- 2019-01-28 CN CN201920144900.1U patent/CN209811114U/en active Active
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