Countersink for machining

Abstract

The utility model discloses a machining countersink which comprises a tool handle, a connecting block and a tool bit, the diameter of the tool bit is larger than that of the tool handle, and the connecting block is connected with the tool handle and the tool bit. The tool bit comprises a first chip removal groove, a second chip removal groove and a third chip removal groove, and the first chip removal groove, the second chip removal groove and the third chip removal groove are uniformly formed in the outer surface of the tool bit from high to low; the tool bit comprises a first blade, a second blade and a third blade, the first blade is located at the top end of the first chip groove, the second blade is located at the top end of the second chip groove, and the third blade is located at the top end of the third chip groove; according to the utility model, the procedures of outer diameter machining, groove turning and end face flattening are integrated on one cutter body for simultaneous machining, so that the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of countersinking cutters, in particular to a countersinking cutter for machining. Background Art

[0002] In machining, especially in the machining of holes, drilling and countersinking are often used. In order to improve the machining accuracy, many tools combine a drill bit and a countersinking cutter into a composite tool, which can complete the forming of a hole at one time and improve the coaxial accuracy of hole machining. Content of the Utility Model

[0003] In order to solve the above technical problems, the utility model provides the following technical solutions: A countersinking cutter for machining, including a tool shank, a connecting block and a tool head. The diameter of the tool head is larger than that of the tool shank, and the connecting block connects the tool shank and the tool head. The tool head includes a first chip fluting, a second chip fluting and a third chip fluting, and the first chip fluting, the second chip fluting and the third chip fluting are uniformly arranged on the outer surface of the tool head from high to low. The tool head includes a first blade, a second blade and a third blade. The first blade is located at the top of the first chip fluting, the second blade is located at the top of the second chip fluting, and the third blade is located at the top of the third chip fluting.

[0004] Preferably, the length of the first blade is greater than that of the second blade, and the second blade and the third blade have the same size.

[0005] Preferably, the tool head includes a center hole, and the center hole axially penetrates through the center position of the tool head.

[0006] Preferably, the tool head includes a first threaded hole and a second threaded hole, and the first threaded hole and the second threaded hole are located on the side surface of the tool head.

[0007] Preferably, it includes a hollow part, and the hollow part is located inside the tool shank. The hollow part is conical and is located on one side of the center line of the tool shank.

[0008] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0009] 1. This tool integrates the processes of machining the outer diameter, turning the groove and facing the end surface on one tool body for simultaneous machining, improving efficiency. Brief Description of the Drawings

[0010] Figure 1 It is a perspective view of an embodiment of the utility model.

[0011] Figure 2 It is a schematic structural view of the first blade of an embodiment of the utility model.

[0012] Figure 3 Schematic diagram of the third blade structure according to an embodiment of the present invention.

[0013] In the figure, 1. tool shank, 2. connecting block, 3. tool tip, 4. second blade, 5. third blade, 6. first blade, 7. second chip removal groove, 8. third chip removal groove, 9. first chip removal groove, 10. central hole, 11. first threaded hole, 12. second threaded hole, 13. hollow part. Specific implementation manner

[0014] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0015] As Figures 1-3 , a countersinking cutter for machining includes a tool shank 1, a connecting block 2 and a tool tip 3. The diameter of the tool tip 3 is larger than the diameter of the tool shank 1, and the connecting block 2 connects the tool shank 1 and the tool tip 3; the tool tip 3 includes a first chip removal groove 9, a second chip removal groove 7 and a third chip removal groove 8, and the first chip removal groove 9, the second chip removal groove 7 and the third chip removal groove 8 are evenly opened on the outer surface of the tool tip 3 from high to low; the tool tip 3 includes a first blade 6, a second blade 4 and a third blade 5. The first blade 6 is located at the top of the first chip removal groove 9, the second blade 4 is located at the top of the second chip removal groove 7, and the third blade 5 is located at the top of the third chip removal groove 8; the second blade 4 is used for machining flat end faces and turning grooves, the third blade 5 for machining flat end faces, and the first blade 6 for machining the outer diameter of bosses, turning grooves and flat end faces. This tool concentrates the processes of machining outer diameters, turning grooves and flat end faces on one tool body for simultaneous machining, improving efficiency.

[0016] As Figures 1-3 , the length of the first blade 6 is greater than the length of the second blade 4, and the second blade 4 and the third blade 5 have the same size and height from high to low, so that the parts to be machined can be gradually machined, reducing excessive chips generated during simultaneous machining, reducing the situation of machine jamming, and improving work efficiency.

[0017] As Figures 1-3 , the tool tip 3 includes a central hole 10, and the central hole 10 axially penetrates the central position of the tool tip 3; the central hole is opened for installing a center drill, and a center hole can be drilled when needed, expanding the scope of use of the product.

[0018] As Figures 1-3, the cutter head 3 includes a first threaded hole 11 and a second threaded hole 12, and the first threaded hole 11 and the second threaded hole 12 are located on the side surface of the cutter head 3; the center drill is fixed by installing a setscrew through the threaded hole, improving the firmness of the drill bit and increasing safety.

[0019] Such as Figures 1-3 , including a hollow part 13, the hollow part 13 is located inside the tool handle 1, the hollow part 13 is conical, and the hollow part 13 is located on one side of the center line of the tool handle 1; the hollow part saves the product cost.

[0020] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A countersinking cutter for machining, characterized in that: It includes a tool handle (1), a connecting block (2) and a tool tip (3). The diameter of the tool tip (3) is larger than that of the tool handle (1), and the connecting block (2) connects the tool handle (1) and the tool tip (3). The tool tip (3) includes a first chip fluting (9), a second chip fluting (7) and a third chip fluting (8). The first chip fluting (9), the second chip fluting (7) and the third chip fluting (8) are evenly arranged on the outer surface of the tool tip (3) from high to low. The tool tip (3) includes a first blade (6), a second blade (4) and a third blade (5). The first blade (6) is located at the top of the first chip fluting (9), the second blade (4) is located at the top of the second chip fluting (7), and the third blade (5) is located at the top of the third chip fluting (8).

2. The countersinking cutter for machining according to claim 1, characterized in that: The length of the first blade (6) is greater than that of the second blade (4), and the second blade (4) has the same size as the third blade (5).

3. The counterboring cutter for machining according to claim 2, wherein: The tool tip (3) includes a central hole (10), and the central hole (10) axially penetrates through the central position of the tool tip (3).

4. The countersinking cutter for machining according to claim 3, characterized in that: The tool tip (3) includes a first threaded hole (11) and a second threaded hole (12), and the first threaded hole (11) and the second threaded hole (12) are located on the side surface of the tool tip (3).

5. The countersinking cutter for machining according to claim 4, characterized in that: It includes a hollow part (13), and the hollow part (13) is located inside the tool handle (1). The hollow part (13) is conical, and the hollow part (13) is located on one side of the center line of the tool handle (1).

Images