Boring cutter
By designing a 45° angled cutting edge and a triangular insert for the boring tool, the problem of burrs at the bore opening was solved, improving the machining quality and efficiency of the bearing bore in the rear axle housing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional boring tools often leave metal burrs on the edge of the bore after machining the bearing hole in the rear axle housing, resulting in low machining efficiency and increased manufacturing costs.
Design a boring tool with a cutting edge at a 45° angle to the bearing hole of the rear axle housing. The cutting edge is used to chamfer the hole opening. Combined with the triangular insert and bevel design, burr residue is avoided, improving machining quality and efficiency.
It effectively removes burrs from orifices, improves processing quality, avoids manual deburring, and increases processing efficiency.
Smart Images
Figure CN224058736U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to tool equipment technical field especially relates to a boring cutter. BACKGROUND
[0002] In the field of automobile rear axle manufacturing, the machining quality of bearing hole directly affects the assembly precision and service life of transmission system. At present, boring cutter is generally used for finish machining of bearing hole of cast or forged rear axle shell, but in actual production, it is found that after traditional boring cutter completes hole diameter cutting, metal burrs are easily left on the edge of hole mouth, which leads to the need of additional deburring process, seriously restricting the processing efficiency and increasing the manufacturing cost. SUMMARY
[0003] In view of the problems in the prior art, the utility model provides a boring cutter which solves the problem of metal burrs left on the edge of hole mouth after traditional boring cutter completes hole diameter cutting.
[0004] According to the embodiment of the utility model, a boring cutter comprises a handle and a blade, the top of the handle is provided with a mounting part, one side of the top of the mounting part is provided with a mounting groove, the blade is arranged in the mounting groove, the blade is provided with a mounting hole, the blade is fixed in the mounting groove through a locking piece, and the height position of the blade edge of the blade is higher than that of the mounting part.
[0005] Compared with the prior art, the utility model has the following beneficial effects: by fixing the handle of the boring cutter on the tool holder, the blade edge on the blade forms an angle of 45° with the bearing hole of the rear axle shell, when the tool holder rotates, the blade edge processes a chamfer on the hole mouth of the bearing hole of the rear axle shell, thereby solving the problem of burrs on the hole mouth of the bearing hole of the rear axle shell, the processing quality of the bearing hole of the rear axle shell can be further improved through the boring cutter, and the process of manually removing burrs by workers can be avoided, and the processing efficiency of the bearing hole of the rear axle shell is improved.
[0006] Further, the blade is triangular, and the cross section of the blade gradually increases in the direction away from the mounting part, one side of the blade away from the mounting groove is a first inclined surface, and the blade edge is located at the high end of the first inclined surface.
[0007] Further, the inclination of the first inclined surface is 25-35°.
[0008] Further, a second inclined surface is arranged on the mounting part, and the second inclined surface is flush with the low end of the first inclined surface.
[0009] Further, the locking piece is a bolt, and the bolt passes through the mounting hole to fix the blade in the mounting groove. BRIEF DESCRIPTION OF DRAWINGS
[0010] Figure 1The axial view of the embodiment of the utility model.
[0011] Figure 2 The bottom view of the embodiment of the utility model.
[0012] Figure 3 The rear view of the embodiment of the utility model.
[0013] Figure 4 The perspective view of the blade.
[0014] In the above figure: 1, the handle; 2, blade; 3, mounting hole; 4, mounting portion; 5, first inclined surface; 6, cutting edge; 7, second inclined surface. PREFERRED EMBODIMENT
[0015] The technical scheme in the utility model will be further explained in connection with the drawings and embodiments.
[0016] As Figures 1-4 shown, the utility model discloses a boring cutter, including: handle 1 and blade 2, the top of handle 1 is provided with mounting portion 4, one side of the top of mounting portion 4 is provided with mounting groove, the blade 2 is arranged in mounting groove, and the mounting hole 3 is arranged on the blade 2, and the blade 2 is fixed in mounting groove through locking piece, and the height position of the cutting edge 6 of the blade 2 is higher than mounting portion 4.
[0017] By fixing the handle 1 of the boring cutter on the tool holder, the cutting edge 6 on the blade 2 forms an angle of 45 ° with the bearing hole of the rear axle shell, when the tool holder is in the process of rotating, the cutting edge 6 processes a chamfer in the orifice of the bearing hole of the rear axle shell, thereby solve the problem of burr of the orifice of the bearing hole of the rear axle shell, the boring cutter can further improve the processing quality of the bearing hole of the rear axle shell, and also can avoid the process that the worker manually removes the burr, improve the processing efficiency of the bearing hole of the rear axle shell.
[0018] Further, as Figure 4 shown, the blade 2 is triangular, and the shape of the mounting groove is also matched with the shape of the blade 2, thereby improving the stability that the blade 2 is fixed in the mounting groove, and the cross section of the blade 2 gradually increases along the direction away from the mounting portion 4, one side of the blade 2 away from the mounting groove is the first inclined surface 5, and the cutting edge 6 is located at the high end of the first inclined surface 5. Specifically, the inclination of the first inclined surface 5 is 25-35 °, and the thickness of the blade 2 is 3-5cm.
[0019] Further, as Figure 1 shown, the second inclined surface 7 is further provided on the mounting portion 4, and the low end of the second inclined surface 7 is flush with the first inclined surface 5, thereby avoiding the problem of interference of the mounting portion 4 in the process that the cutting edge 6 processes the bearing hole of the rear axle shell. Specifically, the locking piece is a bolt, and the bolt passes through the mounting hole 3 and fixes the blade 2 in the mounting groove.
[0020] Finally, it is pointed out that the above examples are merely to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.
Claims
1. A boring tool, characterized in that, The utility model relates to a cutting tool, including: A handle (1) and a blade (2), the top of the handle (1) is provided with a mounting part (4), one side of the top of the mounting part (4) is provided with a mounting groove, the blade (2) is arranged in the mounting groove, the blade (2) is provided with a mounting hole (3), the blade (2) is fixed in the mounting groove through locking pieces, the height position of the cutting edge (6) of the blade (2) is higher than the mounting part (4).
2. A boring tool as claimed in claim 1, characterized in that The blade (2) is triangular, and the cross section of the blade (2) gradually increases along the direction away from the mounting part (4), one side of the blade (2) away from the mounting groove is a first inclined surface (5), and the cutting edge (6) is located at the high end of the first inclined surface (5).
3. A boring tool as claimed in claim 2, wherein The inclination of the first inclined surface (5) is 25-35 degrees.
4. A boring tool as claimed in claim 2, wherein the cutting edge is formed by a plurality of cutting edges. The mounting part (4) is provided with a second inclined surface (7), and the low end of the second inclined surface (7) is flush with the first inclined surface (5).
5. The boring tool of claim 1 wherein, The locking piece is a bolt, and the bolt passes through the mounting hole (3) to fix the blade (2) in the mounting groove.