Indexable gear shaping cutter

Abstract

Indexable gear shaper cutter. It relates to a cylindrical gear machining cutter. It solves the problems of traditional indexable shaper cutter method, such as installation in the direction, no deflection, and the risk of loosening and falling in the processing process. The cutter body is in a circular structure, the circumference of the cutter body is provided with uniformly arranged blade grooves, the indexable hard alloy gear shaper blade is arranged in the blade groove, and the blade groove is pressed in the blade groove by a pressing screw. The blade is made into an inverted inclined surface, the blade groove is made into a corresponding positioning form, and the pressing force is naturally formed to prevent the blade root from being deflected, which saves the cost, improves the work efficiency, maximally improves the strength of the gear shaper cutter, simultaneously increases the cutting depth and cutting speed, and shortens the processing time.

Description

Technical Field

[0001] This utility model relates to gear machining tools, specifically to an optimized indexable gear shaper. Background Technology

[0002] Currently, China is vigorously developing clean energy, with wind power development being particularly rapid. As the installed capacity and speed of wind power installation increase, the delivery time requirements for wind turbine gear processing are becoming shorter, while the gear strength requirements are also increasing. Therefore, the hardness of the gear blanks needs to be correspondingly increased, reaching HRC40-55. Traditional high-speed steel gear shaping cutters no longer meet current processing requirements. Consequently, indexable carbide insert gear shaping cutters are becoming increasingly widely used. Currently, most indexable gear shaping cutters on the market have a two-index structure, with the tooth profile on the same side and mounted normally. During processing, the insert bears a large normal load, making it prone to insert breakage. Since the processing requires stability, reliability, and efficiency, there is an urgent need for optimized tool design. Utility Model Content

[0003] To address the reliability issues of existing indexable gear shaper cutter inserts, such as inability to withstand significant impacts and easy insert detachment, this invention provides an optimized indexable gear shaper cutter. The technical solution to this problem is as follows:

[0004] The optimized indexable gear shaping cutter of this utility model consists of a cutter body, an indexable carbide gear shaping insert, and an insert clamping screw. The cutter body has a circular structure with uniformly arranged insert grooves on its circumference. The indexable carbide gear shaping insert is spindle-shaped and has a clearance angle γ. The positioning bevel of the indexable carbide gear shaping insert is inverted, and the positioning bevel of the insert groove is correspondingly inverted with the positioning bevel of the indexable carbide gear shaping insert. The indexable carbide gear shaping insert is placed in the insert groove and clamped in place by the insert clamping screw. The indexable gear shaping cutter has a rake angle θ and a clearance angle β, thus constituting an optimized indexable gear shaping cutter.

[0005] This utility model presents an optimized indexable gear shaping cutter, applicable to high-efficiency gear shaping machines. It features a simple structure and high strength. The cutting blade is shaped like a shuttle, with the positioning bevel of the indexable carbide gear shaping blade inverted. The positioning surface of the blade groove is also correspondingly inverted. When the blade is placed in the groove and the screw is tightened, a downward pressure is naturally generated, effectively preventing the reaction force during use from causing the blade to loosen and fall off. This method saves costs, has a compact structure, and high strength, overcoming the shortcomings of traditional indexable gear shaping cutters. This improvement makes the gear shaping cutter more reliable and solves the problems of being subjected to large impacts and the blade easily falling off.

[0006] The optimized indexable gear shaper is used for high-speed shaping of internal and external spur gears and helical gears. It has unique advantages for machining stepped surfaces and herringbone teeth, with a machining line speed of 50-90 m / min, compared to the traditional 15-30 m / min. Attached Figure Description

[0007] Figure 1 This is a front view of the optimized indexable gear shaper cutter of this utility model after assembly. Figure 2 yes Figure 1 The right view, Figure 3 This is the main view of an optimized indexable carbide cutter insert. Figure 4 yes Figure 3 The right view, Figure 5 yes Figure 3 The bottom view, Figure 6 yes Figure 3 3D images, Figure 7 It's a 3D model of the cutting tool. Figure 8 This is a schematic diagram showing the positioning of the blade and groove before partial cutting. Figure 9 This is a schematic diagram showing the blade and groove positioning after partial cutting. Figure 10 This is the front view of the cut plan. Figure 11 yes Figure 10 View of section A after the middle section is cut. Figure 12 This is the front view of a traditional blade. Figure 13 This is a top view of a traditional blade. Figure 14 It is a 3D image of a traditional blade. Detailed Implementation

[0008] Specific implementation method one: Combining Figures 1 to 11 This embodiment is described. It consists of a tool body 1, an indexable carbide gear shaping insert 2, and an insert clamping screw 3. The tool body 1 has a circular structure with uniformly arranged insert grooves on its circumference. The indexable carbide gear shaping insert 2 is spindle-shaped and has a clearance angle γ. The indexable carbide gear shaping cutter has a rake angle θ and a clearance angle β. The positioning bevel 2-1 of the indexable carbide gear shaping insert is inverted, and the positioning bevel 1-1 of the insert groove is correspondingly inverted to the positioning bevel 2-1 of the indexable carbide gear shaping insert. The indexable carbide gear shaping insert 2 is placed in the insert groove and clamped in place by the insert clamping screw 3, thus forming an optimized indexable gear shaping cutter.

[0009] Specific Implementation Method Two: Combining Figures 1 to 11 This embodiment describes the indexable carbide cutting inserts 2 described in this embodiment, which are evenly arranged in the insert grooves on the circumference of the cutter body 1.

[0010] Specific implementation method three: Combining Figures 1 to 11This embodiment describes an indexable carbide shaping insert 2, which is inverted within a corresponding beveled groove.

[0011] Specific implementation method four: Combination Figures 1 to 11 This embodiment describes the indexable carbide cutting tool 2 described in this embodiment, where the positioning surface angle α is 8 to 15 degrees.

[0012] Specific Implementation Method Five: Combining Figure 1 , Figure 2 This embodiment describes an inverted positioning surface S that is a through-type surface, which is easier to process. Traditionally, the surface is non-through with a stepped structure, making it more difficult to process.

[0013] Specific Implementation Method Six: Combination Figure 2 , Figure 6 This embodiment describes the following. The rake angle of the indexable gear shaper cutter described in this embodiment is θ, where θ = 5 to 8°, and the clearance angle of the indexable gear shaper cutter is β, where β = 6 to 11°.

[0014] Specific implementation method seven: Combination Figure 2 , Figure 6 This embodiment is described. In this embodiment, the indexable carbide shaping insert 2 has a back rake angle of γ, where γ = 11–20°.

[0015] Specific implementation method eight: Combination Figure 2 , Figure 8 This embodiment describes the tool body, which uses internal hole positioning and an end face key to assist in preventing rotation and reducing vibration.

[0016] Specific Implementation Method Nine: Combining Figures 1 to 11 This embodiment describes an indexable carbide gear shaping insert 2. This embodiment is suitable for machining the internal and external teeth of cylindrical gears with a module of M3 to M16. It can also be applied to gear shaping of other workpieces.

[0017] The above embodiments are merely exemplary and are not limited to this utility model. It should be noted that for those skilled in the art, any other equivalent changes, modifications, substitutions and variations made under the guidance of the technical solutions provided by this utility model should be considered within the protection scope of this utility model.

Claims

1. An indexable gear shaping cutter, comprising a cutter body, indexable carbide gear shaping inserts, and insert clamping screws, characterized in that: The cutter body has a circular structure with evenly distributed insert grooves on its circumference. The indexable carbide gear shaping insert is spindle-shaped and has a clearance angle γ. The positioning bevel of the indexable carbide gear shaping insert is inverted, and the positioning bevel of the insert groove is correspondingly inverted with the positioning bevel of the indexable carbide gear shaping insert. The indexable carbide gear shaping insert is placed in the insert groove and pressed into the insert groove by the insert clamping screw. The indexable gear shaping cutter has a cutting rake angle θ and a cutting clearance angle β, thus constituting the indexable gear shaping cutter.

2. The indexable gear shaper according to claim 1, characterized in that: The indexable carbide cutting tool is inverted in the corresponding inclined groove.

3. The indexable gear shaper according to claim 1, characterized in that: The positioning surface angle α of the indexable carbide cutting tool is 8 to 15 degrees.

4. The indexable gear shaper according to claim 1, characterized in that: The inverted positioning surface S of the indexable carbide tooth cutting tool has a through-type structure.

5. The indexable gear shaper according to claim 1, characterized in that: The indexable carbide tooth insert has a back rake angle of γ, where γ = 11 to 20°.

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