High-speed steel chamfering device

Abstract

The utility model provides a high-speed steel chamfering device, which relates to the technical field of cutters, and comprises a cylindrical connecting part, the front end of the cylindrical connecting part is provided with a conical head which is integrally formed with the cylindrical connecting part, the side surface of the conical head is provided with at least one chip separating groove, the chip separating groove is arranged along the circumferential direction, the conical head is uniformly provided with four chamfering blades, and the chamfering blades are arranged along the circumferential direction. A chip groove is formed in the rear tool face of the chamfering edge, and the chamfering edge is arranged in a spiral mode. At least one chip separating groove is additionally formed in the conical head and used for rapidly discharging generated cutting chips, so that smoothness of a chamfering face or a conical hole face is guaranteed, and damage is avoided.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a high-speed steel chamfering tool. Background Technology

[0002] High-speed steel chamfering tools, also known as high-speed steel chamfering cutters or high-speed steel chamfering cutters, are tools mounted on machine tools such as milling machines, drilling machines, planers, and chamfering machines to process chamfers and tapered holes in workpieces. They utilize high-speed rotating cutting edges to remove material from the workpiece to achieve the chamfering purpose.

[0003] Existing high-speed steel chamfering tools only have a chip removal groove on one side of the back angle face of the chamfering edge. When the chamfered surface or tapered hole is relatively deep, the cutting chips at the front end are not easily discharged in time, resulting in scratches on the chamfered surface or tapered hole surface, which affects the quality of the product. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the shortcomings of the prior art in that the chamfered surface or the tapered hole is relatively deep, there are scratches. This utility model provides a high-speed steel chamfering tool.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-speed steel chamfering tool, including a cylindrical connecting part, the front end of the cylindrical connecting part is provided with a conical head integrally formed therewith, the side of the conical head is provided with at least one chip-dispersing groove, the chip-dispersing groove is arranged circumferentially, the conical head is evenly provided with four chamfering blades, the back cutting surface of the chamfering blades is provided with a chip removal groove, and the chamfering blades are arranged in a spiral.

[0006] Furthermore, there are two chip-splitting grooves, namely a first chip-splitting groove and a second chip-splitting groove, which are arranged on the surface of the conical head along the generatrix direction.

[0007] More preferably, the first chip-splitting groove is located at a position 1 / 3 of the distance from the front end of the conical head, and the second chip-splitting groove is located at a position 2 / 3 of the distance from the front end of the conical head.

[0008] Furthermore, the helix angle of the chamfering edge is 17°-19°.

[0009] Furthermore, the chamfering device is provided with a central hole along the axial direction. The central holes are arranged from front to back as a first connecting hole, a second connecting hole, and a third connecting hole. The diameter of the first connecting hole is denoted as Φ2, the diameter of the second connecting hole is denoted as Φ1, and the diameter of the third connecting hole is denoted as Φ5, which satisfies Φ1<Φ2<Φ5.

[0010] Furthermore, a groove is formed on the end face of the cylindrical connector, and the groove extends laterally through the cylindrical connector.

[0011] Preferably, the cone angle α of the conical head is 30°, 40°, 45° or 60°.

[0012] The beneficial effects of this utility model are: the high-speed steel chamfering tool provided by this utility model adds at least one chip-dispersing groove to the conical head for quickly discharging the generated cutting chips, thereby ensuring the smoothness of the chamfered surface or the conical hole surface and avoiding damage. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a cross-sectional structural diagram of the high-speed steel chamfering tool of this utility model.

[0015] Figure 2 This is a schematic diagram showing the dimensions of the high-speed steel chamfering tool of this utility model.

[0016] Figure 3 This is a schematic diagram of the left side of the high-speed steel chamfering tool of this utility model.

[0017] Figure 4 This is a right-side structural schematic diagram of the high-speed steel chamfering tool of this utility model.

[0018] Figure 5 yes Figure 4 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Conical head, 2. Cylindrical connecting part, 3. Chamfered edge, 4. Chip removal groove, 5. First chip separating groove, 6. Second chip separating groove, 7. First connecting hole, 8. Second connecting hole, 9. Third connecting hole, 10. Slotted groove. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention. Therefore, they only show the components, orientations, and references (e.g., up, down, left, right, etc.) relevant to the present invention and are intended only to aid in the description of the features in the drawings. Therefore, the following specific embodiments are not intended to be restrictive, and the scope of the claimed subject matter is defined solely by the appended claims and their equivalents.

[0021] like Figures 1-5As shown, this utility model discloses a high-speed steel chamfering tool, comprising a cylindrical connecting part 2, with a conical head 1 integrally formed at the front end of the cylindrical connecting part 2. In this embodiment, the outer diameter Φ3 of the small end of the conical head 1 is 33mm, and the outer diameter Φ4 of the large end is 65mm. Preferably, the cone angle α of the conical head 1 is 30°, 40°, 45°, or 60°. The diameter Φ6 of the cylindrical connecting part 2 is 48mm, and the length H6 is 30mm. At least one chip-dispersing groove is provided on the side of the conical head 1, and the chip-dispersing groove is arranged circumferentially. Four chamfering blades 3 are evenly provided on the conical head 1, and a chip removal groove 4 is provided on the back face of the chamfering blades 3. The chamfering blades 3 are arranged in a spiral, and the spiral angle of the chamfering blades 3 is 17°-19°. There are two chip-dispersing grooves, namely a first chip-dispersing groove 5 and a second chip-dispersing groove 6, which are arranged along the generatrix direction on the surface of the conical head 1. The first chip-dispersing groove 5 is located at 1 / 3 of the distance from the front end of the conical head 1, and the second chip-dispersing groove 6 is located at 2 / 3 of the distance from the front end of the conical head 1. The chamfering tool has a central hole along its axial direction. From front to back, the central holes are sequentially designated as a first connecting hole 7, a second connecting hole 8, and a third connecting hole 9. The diameter of the first connecting hole 7 is denoted as Φ2, the diameter of the second connecting hole 8 as Φ1, and the diameter of the third connecting hole 9 as Φ5, satisfying Φ1 < Φ2 < Φ5. In this embodiment, the diameter Φ2 of the first connecting hole 7 is 17mm, and its length H2 is 15mm; the diameter Φ1 of the second connecting hole 8 is 11mm, and its length H1 is 15mm; the diameter Φ5 of the third connecting hole 9 is 22mm, and its length H3 is 22mm. A slot 10 is formed on the end face of the cylindrical connecting part 2, and the slot 10 transversely penetrates the cylindrical connecting part 2. The width H4 of the slot 10 is 11mm, and the depth H5 is 7mm. The second connecting hole 8, the third connecting hole 9, and the slot 10 facilitate the installation of the tool holder. The first connecting hole 7 facilitates the fixing of the tool holder. The slot 10 can limit the axial rotation between the tool holder and the chamfering device, ensuring the stability of the machining process.

[0022] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high speed steel chamferer characterized by: The cylindrical connecting part is provided with a conical head at the front end, at least one chip separation groove is arranged on the side surface of the conical head, the chip separation groove is arranged in the circumferential direction, four chamfer blades are uniformly arranged on the conical head, a chip removal groove is arranged on the relief surface of the chamfer blade, and the chamfer blades are arranged in a spiral manner.

2. The high speed steel beveler of claim 1 wherein: The chip separation groove is two, which are a first chip separation groove and a second chip separation groove, and the first chip separation groove and the second chip separation groove are arranged on the surface of the conical head in the direction of the generatrix.

3. The high speed steel beveler of claim 2 wherein: The first chip separation groove is arranged at a position 1 / 3 away from the front end of the conical head, and the second chip separation groove is arranged at a position 2 / 3 away from the front end of the conical head.

4. The high speed steel beveler of claim 1 wherein: The spiral angle of the chamfer blade is 17-19°.

5. The high speed steel beveler of claim 1 wherein: The chamferer is provided with a central hole in the axial direction, the central hole sequentially comprises a first connecting hole, a second connecting hole and a third connecting hole from front to back, the diameter of the first connecting hole is Φ2, the diameter of the second connecting hole is Φ1, the diameter of the third connecting hole is Φ5, and Φ1<Φ2<Φ5 is satisfied.

6. The high speed steel beveler of claim 5 wherein: A slot is arranged on the end surface of the cylindrical connecting part, and the slot transversely penetrates the cylindrical connecting part.

7. The high speed steel beveler of claim 1 wherein: The taper angle of the conical head is 30°, 40°, 45° or 60°.

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