Method for machining spline on horizontal lathe

Abstract

The invention relates to a method for machining a spline on a horizontal lathe. The method comprises the following steps that S1, the cutting angle between a power head and the spline is calculated; s2, designing a special machining tool; s3, the Y-axis machining stroke of the lathe is calculated; s4, after the cutter is designed, the cutter is mounted on the lathe; s5, the speed matching ratio between the power head and the main shaft is set on the system; and S6, machining is conducted, specifically, spline extrusion, offset milling and burr treatment are conducted on the automobile steering shaft, the purpose of machining the spline on a horizontal lathe can be achieved by designing a special tool, it is guaranteed that the product size is stable, and the concentricity and the cross-rod distance reach the inspection-free degree.

Description

Technical Field

[0001] The invention belongs to the technical field of spline processing and relates to a method for processing a spline on a horizontal lathe. Background Art

[0002] In the prior art, the patent with authorization announcement number CN201320498904.2 discloses a main shaft of an automobile steering column and an automobile steering column. By setting a press-fitting hole on the yoke, the end of the upper main shaft is press-fitted with the press-fitting hole, and the upper main shaft and the press-fitting hole are set to be an interference fit, thereby avoiding the problem of loose steering column that is easy to occur in the prior art, while improving production efficiency and reducing manufacturing costs.

[0003] The existing spline teeth are produced by forging technology, which is not as accurate as traditional technology, has unstable quality, and has a high production cost, which has brought certain adverse effects to people's use process. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems in the prior art and to provide a method for machining splines on a horizontal lathe.

[0005] The purpose of the present invention can be achieved through the following technical solutions: a method for processing splines on a horizontal lathe, comprising the following steps: S1, calculating the cutting angle between the power head and the spline; S2, designing a special processing tool; S3, calculating the Y-axis processing stroke of the lathe; S4, after the tool design is completed, the tool is installed on the lathe; S5, setting the speed ratio between the power head and the spindle on the system; S6, processing, and performing spline extrusion, square milling and burr processing procedures on the automobile steering shaft.

[0006] In the above-mentioned method for processing splines on a horizontal lathe, the tool includes a cutter disc, a blade structure is arranged on the cutter disc, the blade structure includes a blade seat evenly distributed on the side of the cutter disc and a first blade and a second blade welded on the blade seat, a cutting groove is opened on the first blade, and the first blade and the second blade are arranged at intervals.

[0007] In the above-mentioned method for machining splines on a horizontal lathe, eight blade seats are provided, and the second blade is located between every three first blades.

[0008] In the above-mentioned method for processing splines on a horizontal lathe, the cross-sections of the first blade and the second blade are both trapezoidal, the chipping grooves are evenly opened on the side of the first blade, and both ends of the chipping grooves pass through the first blade.

[0009] Compared with the prior art, the present invention can achieve the purpose of processing splines on a horizontal lathe by designing a special tool, ensuring that the product size is stable, and the concentricity and span distance reach the level of exemption from inspection. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the tool of the present invention; Figure 2 is a front view of the tool of the present invention; Figure 3 Schematic diagram of the first blade structure.

[0011] In the figure, 1, cutter disc; 2, blade seat; 3, first blade; 4, second blade; 5, cutting groove; 6, installation notch. DETAILED DESCRIPTION

[0012] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments. Example

[0013] like Figures 1 to 3 A method for machining splines on a horizontal lathe comprises the following steps: S1, calculating a cutting angle between a power head and a spline; S2, designing a special machining tool; wherein the tool comprises a cutter disc 1, a mounting hole (not shown in the drawing) for connecting an external drive device is provided on the cutter disc 1, a blade structure is provided on the cutter disc 1, and the blade structure comprises a blade seat 2 evenly distributed on a side of the cutter disc 1 and a first blade 3 and a second blade 4 welded on the blade seat 2, and further, the cross sections of the first blade 3 and the second blade 4 are both trapezoidal.

[0014] The first blade 3 is provided with a chipping groove 5, which is evenly provided on the side of the first blade 3, and the two ends of the chipping groove 5 penetrate the first blade 3. In this embodiment, the cross section of the chipping groove 5 is dovetail-shaped. Adding the chipping groove 5 to the first blade 3 can reduce the force area during cutting, thereby reducing the cutting load of the tool while reducing the processing noise, and increasing the service life of the tool. The second blade 4 is a complete blade, so that the surface cuts caused by the chipping groove 5 can be covered, and the burrs of the product during the processing of the other blades can be removed, so as to ensure the quality requirements of the processed surface S3, calculate the Y-axis processing stroke of the lathe.

[0015] The first blades 3 and the second blades 4 are arranged at intervals. In this embodiment, eight blade seats 2 are provided, and the second blades 4 are located between every three first blades 3 .

[0016] Furthermore, the blade seat 2 is provided with a mounting notch 6 for welding the first blade 3 and the second blade 4. The mounting notch 6 enables the bottom of the blade to rest against the plane of the mounting notch 6 when welding the first blade 3 and the second blade 4, thereby facilitating welding.

[0017] S4. After the tool design is completed, the tool is installed on the lathe; S5. The speed ratio between the power head and the spindle is set on the system; S6. Processing, the automobile steering shaft is subjected to spline extrusion, square milling and burr treatment processes.

[0018] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A method for processing splines on a horizontal lathe, comprising the following steps: S1, calculating the cutting angle between the power head and the spline; S2, designing a special processing tool; S3, calculating the Y-axis processing stroke of the lathe; S4, after the tool design is completed, installing the tool on the lathe; S5, setting the speed ratio between the power head and the spindle on the system; S6, processing, and performing spline extrusion, square milling and burr treatment processes on the steering shaft of an automobile.

2. The method for machining splines on a horizontal lathe according to claim 1, characterized in that: The tool comprises a cutter disc (1), a blade structure is arranged on the cutter disc (1), the blade structure comprises a blade seat (2) evenly distributed on the side of the cutter disc (1) and a first blade (3) and a second blade (4) welded to the blade seat (2), a cutting groove (5) is provided on the first blade (3), and the first blade (3) and the second blade (4) are arranged at intervals.

3. The method for machining splines on a horizontal lathe according to claim 1, characterized in that: There are eight blade seats (2), and the second blade (4) is located between every three first blades (3).

4. The method for machining splines on a horizontal lathe according to claim 1, characterized in that: The cross sections of the first blade (3) and the second blade (4) are both trapezoidal, the chipping grooves (5) are evenly arranged on the side of the first blade (3), and both ends of the chipping grooves (5) penetrate the first blade (3).

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