A profile groove cutter for machining the outer diameter of a hardware workpiece

Abstract

The utility model relates to the technical field of hardware workpiece outside diameter processing, concretely to a kind of forming groove cutter of hardware workpiece outside diameter processing, the forming groove cutter includes: tool bar, the tool bar includes tool body, one end of the tool body is provided with tool holder, the side surface of the tool holder is provided with installation slot, the installation slot is provided with the threaded hole that passes through tool holder inside;Blade, the blade is installed in threaded hole, and blade includes tool grain, the through hole that is compatible with threaded hole is provided on the tool grain, and a plurality of tool heads are provided on the tool grain, each tool head is provided with avoid location surface and bevel, and there is cutting head between avoid location surface and bevel;Screw, the screw is sequentially penetrated through hole and threaded hole from outside to inside, and blade is fixed on tool bar.The utility model has the advantages of simple structure, reasonable in design, can make outside diameter groove one forming, programming error rate is low, processing efficiency is high, and it is worth promoting and using.

Description

Technical Field

[0001] This utility model relates to the field of machining technology for the outer diameter of hardware workpieces, specifically a forming groove tool for machining the outer diameter of hardware workpieces. Background Technology

[0002] Hardware workpieces come in a wide variety of types, from ordinary mechanical parts to precision electronic components, and grooving cutters for outer diameter forming need to meet different processing requirements. For example, in automobile manufacturing, the machining of outer diameter grooves for parts such as engine crankshafts and gearbox gear shafts requires grooving cutters to ensure high precision and high surface quality to ensure the fitting accuracy and service life of the parts; while in electronic equipment manufacturing, the machining of outer diameter grooves for small hardware parts places even higher demands on the dimensional accuracy and cutting edge sharpness of the grooving cutters.

[0003] Currently available machining tools for external grooving have complex structures and unreasonable designs. They all use a feed-through machining method, which makes programming troublesome, machine setup difficult, and error rates relatively high. This increases the setup time for initial parts, places higher demands on programmers, and carries a greater risk of tool contact at the bottom of the groove after machining, resulting in low machining efficiency.

[0004] Therefore, the inventor proposes a forming groove tool for machining the outer diameter of hardware workpieces. Utility Model Content

[0005] The purpose of this utility model is to provide a forming groove cutter for machining the outer diameter of hardware workpieces. It has the advantages of simple structure, reasonable design, one-time forming of outer diameter groove, low programming error rate, and high processing efficiency, thus solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a forming groove cutter for machining the outer diameter of a hardware workpiece, comprising: a cutter bar, the cutter bar including a cutter body, a cutter holder provided at one end of the cutter body, a mounting groove provided on the side of the cutter holder, and a threaded hole penetrating the cutter holder provided in the mounting groove;

[0007] The blade is installed in a threaded hole and includes a cutting edge. The cutting edge has a through hole adapted to the threaded hole and is provided with a plurality of cutting heads. Each cutting head is provided with a clearance surface and a beveled surface, and a cutting head is clearly visible between the clearance surface and the beveled surface.

[0008] A screw, which passes through a through hole and a threaded hole from the outside in, and fixes the blade to the blade holder.

[0009] Preferably, the mounting groove is composed of a mounting surface, a first limiting surface, and a second limiting surface, wherein the first limiting surface and the second limiting surface are inclined and form an included angle between the first limiting surface and the second limiting surface, the angle value of which is between 65° and 75°.

[0010] Preferably, the first limiting surface and the second limiting surface gradually move closer together from one end near the threaded hole toward the other end.

[0011] Preferably, the side of the clearance surface is arc-shaped, and there are three cutter heads, with each cutter head having a guide groove on both sides that is concave and connected to the clearance surface.

[0012] Preferably, each of the cutter heads has a fixing surface at one end, and each fixing surface is fitted to the mounting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model provides a forming groove cutter for machining the outer diameter of hardware workpieces. The forming groove cutter includes a cutter bar, a blade and a screw. The overall structure is simple and the design is reasonable. By setting three cutter heads on the outer edge of the cutter head, and by setting the cutter heads with equal outer diameter width, the outer diameter groove can be formed in one step, which greatly simplifies programming. The programming time is reduced by 50% compared with ordinary tool structure, and the programming error rate is reduced by 70%.

[0015] 2. The blade in this utility model includes a cutting insert with a through hole adapted to the threaded hole. The cutting insert has several cutting heads, each with a clearance surface and a beveled surface. A cutting head is clearly visible between the clearance surface and the beveled surface. The workpiece is machined using cutting heads with a diameter equal to the outer diameter of the metal workpiece. The machining time for a single groove with a conventional grooving cutter is 10 seconds. Our forming grooving cutter, machining an outer diameter groove, takes only 3 seconds, increasing machining efficiency by 70%. This significantly shortens machining time and greatly improves productivity. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is an exploded view of the present invention;

[0018] Figure 3 This utility model Figure 2 Side view of the blade;

[0019] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point A;

[0020] Figure 5 This is a schematic diagram illustrating the processing of this utility model.

[0021] The reference numerals and names in the figure are as follows:

[0022] 1. Blade holder; 11. Blade body; 12. Blade holder; 13. Mounting slot; 131. Mounting surface; 132. Limiting surface one; 133. Limiting surface two; 14. Threaded hole; 2. Blade; 21. Cutting insert; 22. Through hole; 23. Blade head; 231. Avoidance surface; 232. Beveled surface; 233. Cutting head; 24. Guide groove; 25. Fixing surface; 3. Screw. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "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 the embodiments of this utility model and simplifying the description. They 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" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0025] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0026] Please see Figures 1 to 5 One embodiment of this utility model provides: a forming groove cutter for machining the outer diameter of a hardware workpiece, comprising:

[0027] The tool holder 1 includes a tool body 11, and a tool holder 12 is provided at one end of the tool body 11. The tool holder 12 has a mounting groove 13 on its side and a threaded hole 14 that passes through the tool holder 12 in the mounting groove 13. The mounting groove 13 is composed of a mounting surface 131, a first limiting surface 132 and a second limiting surface 133. The first limiting surface 132 and the second limiting surface 133 are inclined and form an included angle between them. The angle value of the included angle is between 65° and 75°. The first limiting surface 132 and the second limiting surface 133 gradually move closer together from the end near the threaded hole 14 to the other end.

[0028] Blade 2 is installed in threaded hole 14 and includes blade 21. Blade 21 has through hole 22 adapted to threaded hole 14 and several blade heads 23. Each blade head 23 has a relief surface 231 and a chamfered surface 232. There is a cutting head 233 between relief surface 231 and chamfered surface 232. The side of relief surface 231 is arc-shaped. There are three blade heads 23. Each blade head 23 has a guide groove 24 on both sides that is recessed and connected to relief surface 231. Each blade head 23 has a fixing surface 25 at one end. Each fixing surface 25 is fitted to mounting groove 13.

[0029] Screw 3 passes through the through hole 22 and the threaded hole 14 from the outside to the inside, and fixes the blade 2 on the tool holder 1.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A profile groove tool for machining the outer diameter of a hardware workpiece, characterized by, include: A tool holder (1) includes a tool body (11), a tool holder (12) is provided at one end of the tool body (11), a mounting groove (13) is provided on the side of the tool holder (12), and a threaded hole (14) is provided in the mounting groove (13) through the tool holder (12); Blade (2), the blade (2) is installed in the threaded hole (14), and the blade (2) includes a blade (21), the blade (21) is provided with a through hole (22) adapted to the threaded hole (14), and the blade (21) is provided with a plurality of blade heads (23), each blade head (23) is provided with a clearance surface (231) and a bevel surface (232), and a cutting head (233) is clearly provided between the clearance surface (231) and the bevel surface (232); The screw (3) passes through the through hole (22) and the threaded hole (14) from the outside to the inside, and fixes the blade (2) on the blade bar (1).

2. A profile groove cutter for machining the outer diameter of a hardware workpiece according to claim 1, characterized in that: The mounting groove (13) is composed of a mounting surface (131), a first limiting surface (132) and a second limiting surface (133), wherein the first limiting surface (132) and the second limiting surface (133) are inclined and form an angle between the first limiting surface (132) and the second limiting surface (133), the angle value of which is between 65° and 75°.

3. A profile groove cutter for machining the outer diameter of a hardware workpiece according to claim 2, characterized in that: The limiting surface one (132) and the limiting surface two (133) gradually move closer together from one end near the threaded hole (14) toward the other end.

4. The profile groove cutter for machining the outer diameter of a hardware workpiece according to claim 1, characterized in that: The side of the clearance surface (231) is arc-shaped, and there are three cutter heads (23), and each cutter head (23) has a guide groove (24) on both sides that is concave and connected to the clearance surface (231).

5. A profiled groove tool for machining the outer diameter of a hardware workpiece according to claim 4, characterized in that: Each of the cutter heads (23) has a fixing surface (25) at one end, and each fixing surface (25) is fitted to the mounting groove (13).

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