Sleeking edge cutter

Abstract

The utility model discloses a sleeking edge cutter which comprises a cutter body, three blades are evenly arranged on the cutter body, a cutter point is connected to each blade, three cutting grooves are evenly formed in the cutter body, a counterbore is formed in the middle of the cutter body, a first arc face is arranged on each cutter point, and a second arc face is arranged on each cutter point. The radius of the first arc surface is R1, wherein RI is larger than or equal to 0.097 mm and smaller than or equal to 0.1 mm. The utility model solves the problems that the crest of a thread processed by a common sleeking edge is in a plane state, and the two sides of the crest of the thread are sharp edges, so that a coating of a matching piece is easily damaged, and the service life of the thread of a product is influenced.

Description

Technical Field

[0001] The utility model relates to a finishing blade tool. Background Art

[0002] Wiper edge is a cutting tool structure. Structurally, wiper edge is the transition between main cutting edge and secondary cutting edge, and is actually the extreme form of secondary cutting edge. It mainly plays the role of increasing the impact resistance of tool tip and reducing the surface roughness value of workpiece. Wiper edge is often used to process the thread of connector. The thread crest processed by ordinary wiper edge is in a flat state and the two sides of the thread crest are sharp edges, which can easily damage the coating of the mating part and affect the working life of the product thread. Utility Model Content

[0003] The utility model aims to overcome the existing defects and provide a wiper blade tool, so that the processed thread crest is a curved surface, and both sides of the thread crest are chamfered to increase the service life of the product thread.

[0004] The technical solution for achieving the above-mentioned purpose is: a wiping edge tool, including a tool body, three blades are evenly arranged on the tool body, each of the blades is connected to a tool tip, three cutting grooves are evenly opened on the tool body, a countersunk hole is opened in the middle part of the tool body, a first arc surface is opened on the tool tip, and the radius of the first arc surface is R1, wherein 0.097mm≤RI≤0.1mm.

[0005] Preferably, the contours of the tool body and the tool tip are both equilateral triangles.

[0006] Preferably, two second arc surfaces are mirrored at the connection between each of the blade tips and the corresponding blade, and the radius of each of the second arc surfaces is R2, wherein 0.12 mm≤R2≤0.123 mm.

[0007] Preferably, the thickness of the tool body is L1, 3.625mm≤L1≤3.675mm.

[0008] Preferably, the thickness of the blade and the blade tip are both L2, 3.52mm≤L2≤3.58mm, and the straight-line distance from the top of the blade tip 3 to the blade is 0.643mm.

[0009] Preferably, a third arc surface is provided on the cutting groove, and the radius of the third arc surface is R3, wherein R3 is 0.5 mm.

[0010] Preferably, the upper end of the countersunk hole is a conical hole, and the lower end of the countersunk hole is a cylindrical hole.

[0011] Preferably, the included angle between two contour lines on the cross section of the tapered hole is 60°.

[0012] Preferably, the diameter of the cylindrical hole is L3, 4.05mm≤L3≤4.25mm.

[0013] The beneficial effect of the utility model is that a first arc surface is arranged on the tool tip, the radius of the first arc surface is R1, wherein 0.097mm≤RI≤0.1mm, and a thread with a wavy cross-section can be processed through the first arc surface. At this time, the thread crest is a curved surface, and the edge chamfering is completed on both sides of the thread crest at the same time, which can reduce the wear between the connector threads and greatly increase the service life of the product threads. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a top view of the utility model;

[0016] Figure 3 It is a cross-sectional view of the utility model.

[0017] In the figure: 1. tool body; 2. blade; 3. tool tip; 4. cutting groove; 5. countersunk hole. DETAILED DESCRIPTION

[0018] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] A wiper blade tool comprises a tool body 1, three blades 2 and three tool tips 3.

[0021] Specifically, three blades 2 are evenly arranged on the tool body 1, each blade 2 is connected with a tool tip 3, and three cutting grooves 4 are evenly opened on the tool body 1. The cutting grooves 4 can facilitate the discharge of debris generated by cutting. A countersunk hole 5 is opened in the middle part of the tool body 1, and a first arc surface is opened on the tool tip 3. By setting the first arc surface, the machined thread crest can be a curved surface, and the edges on both sides of the thread crest are chamfered to increase the service life of the product thread; the radius of the first arc surface is R1, where 0.097mm≤RI≤0.1mm.

[0022] Specifically, the contour of the tool body 1 is an equilateral triangle, and two second arc surfaces are mirrored at the connection between each tool tip 3 and the corresponding blade 2, and the radius of each second arc surface is R2, wherein 0.12mm≤R2≤0.123mm; the thickness of the tool body 1 is L1, 3.625mm≤L1≤3.675mm; the thickness of the tool tip 3 is L2, 3.52mm≤L2≤3.58mm, and the straight-line distance from the top of the tool tip 3 to the blade 2 is 0.643mm; a third arc surface is provided on the cutting groove 4, and the radius of the third arc surface is R3, wherein R3 is 0.5mm; the upper end of the countersunk hole 5 is a tapered hole, and the lower end of the countersunk hole 5 is a cylindrical hole, so that the device can be conveniently installed on the turning tool; the angle between the two contour lines on the cross section of the tapered hole is 60°; the diameter of the cylindrical hole is L3, 4.05mm≤L2≤4.25mm.

[0023] The above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the above embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the above embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A wiper blade tool, characterized in that: The tool body (1) comprises three blades (2) evenly arranged on the tool body (1), each of the blades (2) being connected to a blade tip (3), the tool body (1) being evenly provided with three cutting grooves (4), a countersunk hole (5) being provided in the middle of the tool body (1), the blade tip (3) being provided with a first arc surface, the radius of the first arc surface being R1, wherein 0.097 mm ≤ RI ≤ 0.1 mm, the contours of the tool body 1 and the blade tip (3) being both equilateral triangles, the connection between each blade tip (3) and the corresponding blade (2) being The mirror image at the joint has two second arc surfaces, each of which has a radius of R2, wherein 0.12 mm ≤ R2 ≤ 0.123 mm, the thickness of the tool body (1) is L1, 3.625 mm ≤ L1 ≤ 3.675 mm, the thickness of the blade (2) and the tip (3) are both L2, 3.52 mm ≤ L2 ≤ 3.58 mm, the straight-line distance from the top of the tip (3) to the blade (2) is 0.643 mm, and the cutting groove (4) is provided with a third arc surface, the radius of the third arc surface is R3, wherein R3 is 0.5 mm.

2. A wiper tool according to claim 1, characterized in that: The upper end of the countersunk hole (5) is a conical hole, and the lower end of the countersunk hole (5) is a cylindrical hole.

3. A wiper tool according to claim 2, characterized in that: The included angle between two contour lines on the cross section of the tapered hole is 60°.

4. A wiper tool according to claim 2, characterized in that: The diameter of the cylindrical hole is L3, 4.05mm≤L3≤4.25mm.

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