Reversing knife for differential shell

Abstract

The reversing cutter for the differential mechanism shell is characterized in that the reversing cutter comprises a cutter bar part, a cutter head part and an alloy blade, the cutter head part is connected to one end of the cutter bar part, a cutter installing part extending towards one side of the cutter bar part is arranged on the cutter head part, a cutter installing platform is arranged at the end of the cutter installing part, and the alloy blade is arranged on the cutter bar part. The alloy blade is mounted on the blade mounting platform, one side, close to the cutter bar part, of the blade mounting part is an arc surface, and a blade tip of the alloy blade protrudes out of the arc surface and further protrudes out of the end face of the blade mounting part. The tool has the advantages that the tool can be used for turning the outer circumferential face of the half axle gear shaft hole in the differential shell, the same clamp can be adopted for the working procedures of turning the end face, the half axle gear shaft hole, the inner spherical face and the like of the differential shell, secondary clamping is avoided, and the machining efficiency and the machining precision can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to machine tool field, concretely relates to a differential mechanism housing is with the reverse tool. BACKGROUND

[0002] The automobile differential mechanism is the important part of car, can make left, right (or front, rear) drive wheel realize with different rotating speed rotating mechanism. The differential mechanism housing's effect mainly includes protecting differential mechanism, keeping differential mechanism's ventilation and maintaining differential mechanism and rear axle drive wheel's transmission axis unchange, its housing's processing precision and processing quality directly influence differential mechanism's assembly precision and motion precision, and then influence its normal work.

[0003] At present, when turning differential mechanism housing, using fixture tooling fixes differential mechanism housing, but because the size of differential mechanism housing is different, to differential mechanism housing's via, chamfer, rough turning end surface, rough turning half axle gear axle hole, rough turning ball, etc. Process, basically can realize once clamping changes different tooling and can realize processing, but for the outer circumferential surface of half axle gear axle hole, it needs twice clamping to process from the outside, therefore, it is necessary to design a tool which extends into the axle hole from the inside to complete the processing of the outer circumferential surface of the half axle gear hole once. SUMMARY

[0004] In view of the above deficiencies in the prior art, the utility model provides a differential mechanism housing is with the reverse tool, which realizes turning from the differential mechanism housing end face through the half axle gear axle hole to realize the outer circumferential surface turning, reduces the differential mechanism housing clamping times, improves processing efficiency.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A differential mechanism housing is with the reverse tool, characterized by: including the knife rod part, the tool bit, the alloy blade, wherein the tool bit is connected in one end of the knife rod part, the tool bit has the tool mounting portion extending to the one side of the knife rod part, the end of the tool mounting portion has the tool mounting platform, the alloy blade is installed on the tool mounting platform, the one side of the tool mounting portion close to the knife rod part is the circular arc surface, the blade tip of the alloy blade protrudes from the circular arc surface, the blade tip of the alloy blade also protrudes from the end surface of the tool mounting portion.

[0007] Further, the knife rod part includes the tool handle part, the first eccentric knife rod part, the second eccentric knife rod part connected in turn, the tool bit is connected with the second eccentric knife rod part, the diameter of the second eccentric knife rod part is less than the diameter of the first eccentric knife rod part.

[0008] Further, the end face of the second eccentric cutter bar portion has a first tooth groove structure, the cutter head portion has a second tooth groove structure corresponding to the first tooth groove structure, and the cutter head portion is locked on the second eccentric cutter bar portion by a screw.

[0009] Further, the cutter bar portion and the cutter head portion have a cutting fluid hole communicating with the rear of the alloy blade.

[0010] Further, the outer contour of the cutter head portion is cylindrical.

[0011] The beneficial effects of the utility model include: the cutter can realize the turning of the outer circumferential surface of the half shaft gear shaft hole of the differential housing, the same set of clamps can be used for the differential housing turning end face, half shaft gear shaft hole and inner spherical surface processes, secondary clamping is avoided, and the machining efficiency and machining precision are improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a structural schematic diagram of the utility model;

[0013] Figure 2 is Figure 1 a local enlarged view;

[0014] Figure 3 is a structural schematic diagram of the embodiment of the utility model. DETAILED DESCRIPTION

[0015] The utility model will be further described in detail in combination with specific embodiments and drawings.

[0016] A differential housing reverse turning cutter as Figures 1-3 shown, comprising a cutter bar portion 1, a cutter head portion 2 and an alloy blade 3, wherein the cutter head portion 2 is detachably connected to one end of the cutter bar portion 1. The cutter head portion 2 has a cutter mounting portion 4 extending to one side of the cutter bar portion 1, the end of the cutter mounting portion 4 has a cutter mounting platform 2a, the alloy blade 3 is mounted on the cutter mounting platform 2a, and the side of the cutter mounting portion 4 close to the cutter bar portion 1 is a circular arc surface, wherein the cutter mounting portion 4 and the cutter bar portion 1 have a gap, so that the cutter mounting portion 4 can be close to the outer circumferential surface of the differential housing half shaft gear shaft hole. The cutting edge of the alloy blade 3 protrudes from the circular arc surface, facilitating the turning of the circumferential surface, and the cutting edge of the alloy blade 3 also protrudes from the end face of the cutter mounting portion 4, so that the entire differential housing half shaft gear shaft hole can be turned.

[0017] As shown in Figure 1, in order to improve the stability of the turning tool, the tool rod part 1 comprises a tool handle part 1a, a first eccentric tool rod part 1b and a second eccentric tool rod part 1c connected in sequence, wherein the tool head part 2 is connected with the second eccentric tool rod part 1c, the diameter of the second eccentric tool rod part 1c is smaller than that of the first eccentric tool rod part 1b, and the second eccentric tool rod part 1c and the first eccentric tool rod part 1b are arc-shaped transition, which makes the tool rod stable, the eccentric surfaces of the two eccentric tool rods are arc surfaces, and the eccentric surfaces are used for avoiding the inner wall surface of the half shaft hole.

[0018] In order to make the tool head part 2 and the tool rod part 1 connect stably, the end surface of the second eccentric tool rod part 1c of the embodiment has a first tooth groove structure 1d, the tool head part 2 has a second tooth groove structure 2b corresponding to the first tooth groove structure 1d, and the torsional resistance and the shear resistance are increased through the intermeshing structure. The tool head part 2 is locked on the second eccentric tool rod part 1c through a screw.

[0019] In order to make the alloy blade 3 cool well, the tool rod part 1 and the tool head part 2 of the embodiment have a cutting fluid hole 5 communicating with the rear of the alloy blade 3.

[0020] In order to improve the tool structure strength and facilitate the insertion into the shaft hole, the outer contour of the tool head part 2 of the embodiment is cylindrical.

[0021] The above describes the technical solutions provided by the embodiments of the utility model in detail, the principles and implementation manners of the embodiments of the utility model are described by applying specific examples, the above embodiment descriptions are only applicable to help understand the principles of the embodiments of the utility model; meanwhile, for the general technical personnel in the art, the embodiments of the utility model will have changes in the specific implementation manners and application ranges, and the above description should not be understood as the limitation of the utility model.

Claims

1. A reversing tool for a differential housing, characterized in that: The tool includes a shank (1), a head (2), and an alloy blade (3). The head (2) is connected to one end of the shank (1). The head (2) has a mounting part (4) extending toward the shank (1). The end of the mounting part (4) has a mounting platform (2a). The alloy blade (3) is mounted on the mounting platform (2a). The side of the mounting part (4) near the shank (1) is an arc surface. The tip of the alloy blade (3) protrudes from the arc surface and also protrudes from the end face of the mounting part (4).

2. The reverse tool for a differential housing according to claim 1, characterized in that: The tool holder (1) includes a tool handle (1a), a first eccentric tool holder (1b), and a second eccentric tool holder (1c) connected in sequence. The tool head (2) is connected to the second eccentric tool holder (1c). The diameter of the second eccentric tool holder (1c) is smaller than the diameter of the first eccentric tool holder (1b).

3. A reversing tool for a differential housing according to claim 2, characterized in that: The end face of the second eccentric tool holder (1c) has a first tooth groove structure (1d), and the tool head (2) has a second tooth groove structure (2b) corresponding to the first tooth groove structure (1d). The tool head (2) is fastened to the second eccentric tool holder (1c) by screws.

4. A reversing tool for a differential housing according to claim 1, characterized in that: The tool holder (1) and the tool head (2) have a cutting fluid hole (5) that connects to the rear of the alloy blade (3).

5. A reversing tool for a differential housing according to claim 1, characterized in that: The outer contour of the blade head (2) is cylindrical.

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