High-precision profile cutter formed in one cut

Abstract

The utility model provides a one -off forming's high -precision profile cutter, including handle and the cutter head of integrative moulding with handle, the front end of cutter head is equipped with four radial extension's bottom blade, is equipped with four with the blade band of bottom blade link on the circumference of cutter head, forms the chip groove between adjacent blade band, it is equipped with a plurality of profile tooth on the blade band along the axial interval, the tooth root of profile tooth with the face of blade band is used angle transition. The cutter can form the workpiece profile one time through profile tooth cooperation bottom blade and peripheral blade, need not change the cutter, has simplified the processing procedure, simultaneously, the structure of blade band and profile tooth can better carry out the centering and the location, makes workpiece profile degree and surface polishing precision higher.

Description

Technical Field

[0001] This utility model relates to the field of cutting tool technology, and in particular to a high-precision contour cutting tool that can be formed in one cut. Background Technology

[0002] A contour cutter is a tool used for cutting, carving, or trimming the edges of materials, commonly found in various manufacturing and handicraft fields. When machining workpieces, some have specific groove contours. Currently, combination cutters are generally used for machining these workpieces. However, this approach presents challenges in terms of process complexity. Furthermore, during tool changes, inaccurate repositioning between different tools can easily occur, leading to tool marks on the surface of the part and affecting its appearance.

[0003] In view of this, it is necessary to improve the existing contour cutter to solve the above problems. 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, this utility model provides a high-precision contour cutter that can be formed in one cut.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-precision contour cutter formed in one cut, including a handle and a cutter head integrally formed with the handle. The front end of the cutter head is provided with four radially extending bottom cutting edges. The circumferential surface of the cutter head is provided with four cutting edges connected to the bottom cutting edges. Chip grooves are formed between adjacent cutting edges. Multiple contour teeth are provided axially spaced on the cutting edges. The distance H1 between adjacent contour teeth is 3.0±0.05mm, the tooth tip angle β is 60°±0.5°, the tooth tip width H2 is 0.25±0.03mm, the tooth thickness is 0.5±0.03mm, the turning diameter φ1 of the contour tooth tip is 6.5±0.01mm, and the turning diameter φ2 of the contour tooth root is 5.5±0.01mm. The tooth root of the contour tooth and the surface where the cutting edge is located are rounded.

[0006] Preferably, the bottom edge has a radial taper towards the center, with a taper angle α1 of -1.5°.

[0007] Preferably, the bottom cutting edge has a rear angle face with a radial rear angle α2 of 8°-16° and a front angle face with a groove front angle of 12°.

[0008] Preferably, the helix angle α3 of the chip groove is 15°.

[0009] Furthermore, the front edge of the blade forms a front peripheral blade, and the rear edge forms a rear peripheral blade.

[0010] Preferably, the radial clearance angle α4 of the front peripheral blade is 10°-20°, and the axial clearance angle α5 is 8°-13°.

[0011] Furthermore, to facilitate chip removal at the front end, the chip groove is provided with a GASH opening at one end of the top surface of the cutter head, and the corresponding opening angle α6 is 24°.

[0012] Preferably, the core thickness of the cutter head is 1 / 2 of the cutting diameter.

[0013] Furthermore, the connection end between the blade head and the handle is also provided with a blade neck, which is transitionally connected between the handle and the blade head.

[0014] Furthermore, the chip groove extends rearward from the front end of the cutter head to the connection between the cutter neck and the handle.

[0015] The beneficial effects of this utility model are: the high-precision contour cutter provided by this utility model has contour teeth on its cutting edge. The contour teeth, together with the bottom cutting edge and the peripheral cutting edge, can form the contour of the workpiece in one go without changing the tool, which simplifies the processing process. At the same time, the structure of the cutting edge and the contour teeth can better center and position, resulting in higher workpiece contour accuracy and surface polishing precision. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a side view of the high-precision contour cutter that is formed in one cut according to this utility model.

[0018] Figure 2 This is a schematic diagram of the top surface structure of the high-precision contour cutter that is formed in one cut according to this utility model.

[0019] In the diagram: 1. Blade tip, 1.1. Bottom edge, 1.2. Edge band, 1.3. Contour teeth, 1.4. Back face, 1.5. Front face, 1.6. GASH opening, 1.7. Front peripheral edge, 1.8. Back peripheral edge, 2. Blade neck, 3. Handle, 4. Chip groove. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] like Figures 1-2As shown, this utility model discloses a high-precision contour knife formed in one cut, comprising a handle 4 and a blade head 1 integrally formed with the handle 4. The blade head 1 is further provided with a neck 2 at the connection end with the handle 4, and the neck 2 is transitionally connected between the handle 4 and the blade head 1. The front end of the blade head 1 is provided with four radially extending bottom cutting edges 1.1. Each bottom cutting edge 1.1 has a radial taper towards the center, with a taper angle α1 of -1.5°. Preferably, the bottom cutting edge 1.1 has a rear angle face 1.4 with a radial rear angle α2 of 8°-16° and a front angle face 1.5 with a groove front angle of 12°. In this embodiment, the radial rear angle α2 is preferably 16°. The blade head 1 has four cutting edges 1.2 connected to the bottom cutting edge 1.1 on its circumferential surface. Adjacent cutting edges 1.2 form chip grooves 4. The helix angle α3 of the chip grooves 4 is 15°. The chip grooves 4 extend from the front end of the blade head 1 to the connection between the blade neck 2 and the handle 4. In this embodiment, the chip groove 4 has a GASH opening 1.6 at one end of the top surface of the blade head 1, and its corresponding opening angle α6 is 24°. The cutting edge 1.2 is provided with a plurality of contour teeth 1.3 spaced axially. The spacing H1 between adjacent contour teeth 1.3 is 3.0±0.05mm, the tooth tip angle β is 60°±0.5°, the tooth tip width H2 is 0.25±0.03mm, the tooth thickness is 0.5±0.03mm, the turning diameter φ1 of the tooth tip of the contour tooth 1.3 is 6.5±0.01mm, and the turning diameter φ2 of the tooth root of the contour tooth 1.3 is 5.5±0.01mm. The core thickness of the cutting head 1 is 1 / 2 of the cutting diameter φ1. The tooth root of the contour tooth 1.3 and the surface where the cutting edge 1.2 is located are rounded. Preferably, in this embodiment, each peripheral cutting edge is provided with seven contour teeth 1.3 spaced axially. The length L1 of the cutting head 1 is 24.0mm, the length L2 of the cervical blade 2 is 9.0mm, and the length L3 of the shank 4 is 22.0mm. In this embodiment, the radius R of the rounded corner is 0.5mm. The front edge of the cutting edge 1.2 forms a front peripheral cutting edge 1.7, and the rear edge forms a rear peripheral cutting edge 1.8. The radial rear angle α4 of the front peripheral cutting edge 1.7 is 10°-20°, and the axial rear angle α5 is 8°-13°. In this embodiment, the radial rear angle α4 is preferably 11° and the axial rear angle α5 is preferably 13°.

[0024] The cutting edge of this contour cutter is formed in one step by a custom-made diamond grinding wheel, resulting in a high profile that meets the requirements for precision contouring. Furthermore, a complete set of forming grinding wheel matching processes has been designed for this contour cutter, which also solves the problem of groove polishing for the contour.

[0025] 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-precision contour cutter for one-cut forming, characterized in that: The tool includes a handle and a cutting head integrally formed with the handle. The cutting head has four radially extending bottom cutting edges at its front end. The circumferential surface of the cutting head has four cutting bands that connect with the bottom cutting edges. Chip grooves are formed between adjacent cutting bands. Multiple contour teeth are spaced apart along the axial direction on the cutting bands. The spacing H1 between adjacent contour teeth is 3.0±0.05mm, the tooth tip angle β is 60°±0.5°, the tooth tip width H2 is 0.25±0.03mm, the tooth thickness is 0.5±0.03mm, the turning diameter φ1 of the contour tooth tip is 6.5±0.01mm, and the turning diameter φ2 of the contour tooth root is 5.5±0.01mm. The root of the contour teeth and the surface where the cutting band is located are rounded.

2. The high-precision contour cutter for one-cut forming as described in claim 1, characterized in that: The bottom edge has a radial taper towards the center, with a taper angle α1 of -1.5°.

3. The high-precision contour cutter for one-cut forming as described in claim 1, characterized in that: The bottom cutting edge has a rear angle face with a radial rear angle α2 of 8°-16° and a front angle face with a groove front angle of 12°.

4. The high-precision contour cutter for one-cut forming as described in claim 1, characterized in that: The helix angle α3 of the chip groove is 15°.

5. The high-precision contour cutter for one-cut forming as described in claim 1, characterized in that: The front edge of the blade forms a front peripheral blade, and the rear edge forms a rear peripheral blade.

6. The high-precision contour cutter for one-cut forming as described in claim 5, characterized in that: The radial clearance angle α4 of the front peripheral blade is 10°-20°, and the axial clearance angle α5 is 8°-13°.

7. The high-precision contour cutter for one-cut forming as described in claim 1, characterized in that: The core thickness of the cutter head is 1 / 2 of the cutting diameter.

8. The high-precision contour cutter for one-cut forming as described in any one of claims 1-7, characterized in that: The connection end between the blade head and the handle is also provided with a blade neck, which is transitionally connected between the handle and the blade head.

9. The high-precision contour cutter for one-cut forming as described in claim 8, characterized in that: The chip groove extends from the front end of the cutter head to the junction of the cutter neck and the handle.

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