Turning tool for machining special-shaped chute

Abstract

The utility model relates to the technical field of machining tools, in particular to a turning tool for machining a special-shaped chute, which comprises a turning tool body and a blade, a mounting part for fixing the blade is mounted on the turning tool body, the mounting part is eccentrically arranged at one end of the turning tool body, and an included angle is formed between the blade and the turning tool body. The included angle is complementary with the inclination angle of the inner side wall of the special-shaped chute in the vertical direction, the installation part is provided with an avoiding step for avoiding a part at an opening of the special-shaped chute, and the side wall of the installation part is provided with an arc-shaped face coaxially corresponding to the inner arc face of the special-shaped chute. The blade is fixed through the mounting part, the mounting part and the turning tool body are eccentrically arranged, so that the blade can smoothly extend into a part, the machining requirement of the special-shaped chute is met, and the included angle design between the blade and the turning tool body ensures that the machining angle of the blade is consistent with the inclination angle of the special-shaped chute; and the arc-shaped surface arranged on the mounting part corresponds to the inner arc surface of the special-shaped chute, so that the fitting degree of the turning tool and the part is improved.

Description

Technical Field

[0001] This application relates to the technical field of machining tools, and in particular to a turning tool for machining irregularly shaped inclined grooves. Background Technology

[0002] Turning tools are cutting tools used for turning operations in metal cutting processes. They are widely used in fields such as machinery manufacturing. According to their uses, turning tools can be classified into external turning tools, internal turning tools, facing turning tools, parting or grooving tools, threading turning tools, and forming turning tools, etc.

[0003] To meet requirements in aerodynamic performance, structural strength, and weight, aerospace components are typically custom-made, such as... Figure 1 As shown, a central hole 2 is provided on part 1, and an irregular slant groove 3 is provided on the periphery of the central hole 2. During the machining of the irregular slant groove 3, part 1 is controlled to rotate, and the cutting tool moves in the extension direction of the irregular slant groove 3. Due to the special shape of the irregular slant groove 3, the existing cutting tool cannot be inserted into part 1 for machining, and cannot meet the machining requirements.

[0004] Therefore, a new type of cutting tool is needed to machine irregularly shaped grooves on parts, solving the problem that existing cutting tools cannot reach into parts. Utility Model Content

[0005] In order to make the inclination angle of the cutting tool consistent with that of the irregular slanted groove, and to allow the cutting tool to smoothly extend into the part, this application provides a cutting tool for machining irregular slanted grooves.

[0006] This application provides a turning tool for machining irregularly shaped inclined grooves, employing the following technical solution:

[0007] A lathe tool for machining irregularly shaped inclined grooves includes a tool body and an insert. The tool body is equipped with a mounting part for fixing the insert. The mounting part is eccentrically located at one end of the tool body. An angle is formed between the insert and the tool body. The angle is complementary to the vertical inclination angle of the inner sidewall of the irregularly shaped inclined groove. The mounting part is provided with a step to avoid parts at the opening of the irregularly shaped inclined groove. The sidewall of the mounting part is provided with an arc-shaped surface coaxial with the inner arc surface of the irregularly shaped inclined groove.

[0008] By adopting the above technical solution, the mounting part is eccentrically set at one end of the cutting tool body, allowing the cutting tool to smoothly extend into the part for machining, meeting the machining requirements of the irregular slanted groove. The included angle design between the cutting tool and the cutting tool body ensures that the machining angle of the cutting tool is consistent with the inclination angle of the irregular slanted groove, thereby improving machining accuracy. By setting a step to avoid interference between the part and the mounting part at the opening of the irregular slanted groove during machining, the machining process is ensured to proceed smoothly. The arc surface of the mounting part is set to correspond to the inner arc surface of the irregular slanted groove, improving the fit between the cutting tool and the part, and further improving the machining accuracy of the irregular slanted groove.

[0009] Optionally, a thickened connecting section is formed between the mounting part and the cutting tool body.

[0010] By adopting the above technical solution, the thickened connecting section is located at the connection between the mounting part and the tool body, which further enhances the bending stiffness of the tool, improves the overall structural strength of the tool, and extends the service life of the tool.

[0011] Optionally, one end of the mounting part is provided with a mounting groove, and a clamping member that abuts against the periphery of the blade is fixedly installed in the mounting groove.

[0012] By adopting the above technical solution, the clamping component can stably clamp the cutting tool, preventing the cutting tool from loosening or shifting during the machining process and improving the stability of the cutting tool.

[0013] Optionally, the mounting groove is connected in sequence with a first deformation groove and a second deformation groove in the direction of avoiding the step. The first deformation groove and the second deformation groove are disposed through the mounting part. The first deformation groove is a long strip groove and the second deformation groove is an arc groove.

[0014] By adopting the above technical solution, the first deformation groove and the second deformation groove improve the elastic performance of the clamping part and reduce stress concentration during the tool installation process. The second deformation groove is located at the end of the mounting groove and is an arc-shaped groove, which disperses the force on the cutting tool located at the end of the mounting groove and extends the service life of the cutting tool.

[0015] Optionally, the clamping member is provided with a clearance groove to avoid the corner of the blade tail.

[0016] By adopting the above technical solution, the clearance groove can effectively prevent the corner of the blade from interfering with the clamping parts during installation, ensuring the stable installation of the blade.

[0017] Optionally, positioning protrusions are formed on both sides of the blade, the positioning protrusions extend along the installation direction of the blade, and the clamping member is provided with positioning grooves that slide with the positioning protrusions.

[0018] By adopting the above technical solution, the positioning protrusions on both sides of the blade slide and the positioning groove on the clamping part, which enables the blade to be positioned quickly and accurately during installation, improving the assembly efficiency and accuracy of the blade, and also avoiding positional deviation during blade processing, thus ensuring the processing accuracy of irregular slanted grooves.

[0019] Optionally, the mounting part is provided with a locking hole, and a locking element for adjusting the clamping force of the clamping element is detachably connected in the locking hole.

[0020] By adopting the above technical solution, the locking component and the locking hole are detachably connected, enabling precise adjustment of the clamping force of the clamping component, which facilitates the installation and removal of the blade.

[0021] Optionally, the blade tip protrudes outward to form an arc-shaped protrusion.

[0022] By adopting the above technical solution, the arc-shaped protrusion allows the blade tip to better adapt to the shape of the irregular oblique groove. The arc-shaped protrusion is designed to protrude outward from the blade tip, which enhances the strength of the blade tip and further extends the service life of the blade.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The mounting part is eccentrically positioned at one end of the cutting tool body, allowing the insert to smoothly extend into the workpiece for machining, meeting the machining requirements of irregular slanted grooves. The included angle design between the insert and the cutting tool body ensures that the machining angle of the insert is consistent with the inclination angle of the irregular slanted groove, thereby improving machining accuracy. By setting a step to avoid interference between the workpiece and the mounting part at the opening of the irregular slanted groove during machining, the machining process is ensured to proceed smoothly. The arc surface of the mounting part is set to correspond to the inner arc surface of the irregular slanted groove, improving the fit between the cutting tool and the workpiece, and further improving the machining accuracy of the irregular slanted groove.

[0025] 2. The thickened connecting section further enhances the bending stiffness of the cutting tool, improves the overall structural strength of the cutting tool, and extends the service life of the cutting tool;

[0026] 3. The first and second deformation grooves improve the elasticity of the clamping parts and reduce stress concentration during the tool installation process. The second deformation groove is located at the end of the mounting groove and is an arc-shaped groove, which disperses the force on the cutting tool located at the end of the mounting groove and extends the service life of the cutting tool. Attached Figure Description

[0027] Figure 1 This is a cross-sectional view of the completed part, used to show the location of the irregular inclined groove on the part;

[0028] Figure 2 This is a structural schematic diagram of an embodiment of the present application, used to illustrate the specific structure of the cutting tool;

[0029] Figure 3 This is a partial structural diagram of an embodiment of this application, used to illustrate the mounting relationship between the cutting tool and the cutting tool body.

[0030] Reference numerals: 1. Part; 2. Center hole; 3. Irregular groove; 4. Insert; 5. Tool body; 6. Mounting part; 7. Clearance step; 8. Arc-shaped surface; 9. First clearance slope; 10. Thickened connecting section; 11. Mounting groove; 12. Clamping part; 13. Threaded hole; 14. Bolt; 15. First deformation groove; 16. Second deformation groove; 17. Clearance groove; 18. Positioning protrusion; 19. Positioning groove; 20. Arc-shaped protrusion; 21. Second clearance slope. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0032] Example:

[0033] A turning tool for machining irregularly shaped inclined grooves, reference Figure 1 and Figure 2 The lathe tool includes a cutting insert 4 and a lathe tool body 5. The lathe tool body 5 is provided with an integrally formed mounting part 6. The cutting insert 4 is fixed on the mounting part 6. The mounting part 6 is eccentrically located at one end of the lathe tool body 5. An angle is formed between the cutting insert 4 and the lathe tool body 5. The inclination angle of the inner sidewall of the irregular slant groove 3 along the vertical direction is complementary to the angle. A clearance step 7 is provided at the end of the mounting part 6 near the lathe tool body 5. The clearance step 7 corresponds to the position of the part 1 at the opening of the irregular slant groove 3. During the machining process, the mounting part 6 extends into the part 1 along the machining direction of the irregular slant groove 3. The clearance step 7 makes way for the part 1 at the groove opening of the irregular slant groove 3. An arc surface 8 is provided on the sidewall of the mounting part 6. The arc surface 8 of the mounting part 6 is coaxially arranged with the inner arc surface of the irregular slant groove 3. A first clearance slope 9 is provided on the side of the mounting part 6 away from the inner arc surface of the irregular slant groove 3. The first clearance slope 9 is used to avoid the part 1 between the irregular slant groove 3 and the center hole 2, ensuring that the irregular slant groove 3 is machined smoothly.

[0034] refer to Figure 2 and Figure 3 A thickened connecting section 10 is provided between the mounting part 6 and the cutting tool body 5. The thickened connecting section 10 is arc-shaped towards the side facing the step 7. A mounting groove 11 is provided at the end of the mounting part 6 away from the cutting tool body 5. A clamping member 12 is fixedly connected in the mounting groove 11. Two clamping members 12 are provided and located on both sides of the cutting tool 4. The periphery of the cutting tool 4 abuts against the clamping member 12. A locking hole is provided on the side of the mounting part 6. A locking member is threadedly connected in the locking hole. In this embodiment, the locking hole is a threaded hole 13, and the locking member is a bolt 14. The end face of the bolt 14 is flush with the side wall of the mounting part 6. Figure 1To avoid interference between bolt 14 and part 1 during processing, bolt 14 is threadedly connected to threaded hole 13 to adjust the clamping force of clamping part 12, thereby stably clamping and fixing blade 4. The mounting part 6 is provided with a first deformation groove 15 and a second deformation groove 16. The first deformation groove 15 and the second deformation groove 16 are both provided through the mounting part 6 and communicate with the mounting groove 11. The first deformation groove 15 is a long strip groove and the second deformation groove 16 is an arc groove. The first deformation groove 15 and the second deformation groove 16 are formed by the mounting groove 11 extending towards the avoidance step 7. The second deformation groove 16 is located at the end of the mounting groove 11.

[0035] refer to Figure 2 and Figure 3 The clamping member 12 is provided with multiple clearance grooves 17, which correspond to the corner positions of the tail of the blade 4. The clamping member 12 has positioning protrusions 18 on both sides facing each other. The positioning protrusions 18 extend along the installation direction of the blade 4. The blade 4 has a recessed positioning groove 19 that slides with the positioning protrusions 18. The blade 4 slides along the positioning protrusions 18 until the end of the blade 4 abuts against the clamping member 12.

[0036] refer to Figure 1 and Figure 2 The cutting head of the blade 4 protrudes outward to form an arc-shaped protrusion 20. The shape of the arc-shaped protrusion 20 is the same as the end face shape of the irregular groove 3. The end of the mounting part 6 is provided with a second clearance slope 21. The second clearance slope 21 is located at the cutting head of the blade 4 and is used to expose the arc-shaped protrusion 20 so that the machining can proceed smoothly.

[0037] The implementation principle of this application embodiment is as follows: the blade 4 slides along the positioning protrusion 18 and is installed on the clamping member 12. The bolt 14 is threadedly connected to the threaded hole 13 to adjust the clamping force of the clamping member 12. The blade 4 is stably fixed on the cutting tool body 5. The cutting tool is installed on the lathe. The part 1 is rotated so that the cutting tool moves toward the setting direction of the irregular groove 3, avoiding the step 7, the first avoidance slope 9, and the second avoidance slope 21 to ensure that the mounting part 6 can smoothly extend into the part 1 until the irregular groove 3 is processed.

[0038] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tool for machining a profiled chute, comprising a tool body (5) and a blade (4), characterised in that: The tool bit body (5) is provided with a mounting portion (6) for mounting the tool blade (4), the mounting portion (6) is eccentrically arranged at one end of the tool bit body (5), an included angle is formed between the tool blade (4) and the tool bit body (5), the included angle is complementary to the inclination angle of the inner side wall of the special-shaped chute (3) in the vertical direction, the mounting portion (6) is provided with a relief step (7) for avoiding the parts (1) at the opening of the special-shaped chute (3), and the side wall of the mounting portion (6) is provided with an arc surface (8) coaxially corresponding to the inner arc surface of the special-shaped chute (3).

2. The tool according to claim 1, wherein: A thickened connecting section (10) is formed between the mounting portion (6) and the tool bit body (5).

3. The tool according to claim 1, wherein: An installation groove (11) is formed at one end of the mounting portion (6), and a clamping piece (12) in contact with the peripheral side of the tool blade (4) is fixedly installed in the installation groove (11).

4. A tool according to claim 3, characterized in that: The installation groove (11) is sequentially communicated with a first deformation groove (15) and a second deformation groove (16) in the direction of the relief step (7), the first deformation groove (15) and the second deformation groove (16) are arranged on the mounting portion (6), the first deformation groove (15) is a long strip-shaped groove, and the second deformation groove (16) is an arc-shaped groove.

5. The cutter for machining a profiled chute according to claim 3, characterized in that: A relief groove (17) for avoiding the corner of the tail of the tool blade (4) is formed in the clamping piece (12).

6. The cutter for machining a profiled chute according to claim 3, characterized in that: Positioning ribs (18) are formed at both sides of the tool blade (4) and extend in the mounting direction of the tool blade (4), and a positioning groove (19) for sliding cooperation with the positioning ribs (18) is formed in the clamping piece (12).

7. The cutter for machining a profiled chute according to claim 3, characterized in that: A locking hole is formed in the mounting portion (6), and a locking piece for adjusting the clamping force of the clamping piece (12) is detachably connected in the locking hole.

8. The tool according to claim 1, wherein: An arc-shaped protruding portion (20) is formed at the tool head of the tool blade (4).

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