Novel taper ball milling cutter

Abstract

The utility model belongs to the technical field of ball end milling cutters, and particularly relates to a novel taper ball milling cutter which comprises a cutter holder and a cutter handle, a connecting rod is fixedly connected to the lower surface of the cutter holder, and a limiting block is arranged on the outer side wall of the connecting rod. The connecting rod and the limiting block are inserted into the connecting groove, so that the cutter holder is connected with the cutter handle, the limiting block can be clamped in the connecting groove, the cutter handle cannot rotate, the threaded hole can be aligned with the through hole formed in the cutter handle, the fixing bolt is screwed into the threaded hole, and then the cutter handle on the cutter holder can be replaced and installed. The high-speed steel has good strength, the strength and the wear resistance of the milling cutter are further improved through the nano coating, the cutter handle is not prone to being damaged, the cutter holder and the cutter handle are arranged in a separated mode and can be rapidly disassembled, and the service life of the milling cutter is prolonged. And the cutter handle can be conveniently replaced or maintained in the later period.

Description

Technical Field

[0001] The utility model relates to the technical field of ball end milling cutters, in particular to a novel taper ball milling cutter. Background Art

[0002] Tapered ball end mill (allend mill) is a tool used for milling, with a tapered head and a spherical tip. It is usually made of carbide or high-speed steel and is used for complex three-dimensional curved surface processing on the surface of the workpiece. The characteristics of the taper ball end mill include: 1. Tapered head: The taper ball end mill has a tapered head, which can achieve a larger cutting depth and tilt angle, and is suitable for processing workpieces with inclined or inclined surfaces. 2. Spherical tip: The tip of the taper ball end mill is spherical, so that the tool can evenly distribute the cutting force during the processing, reduce the cutting resistance and cutting marks on the workpiece surface, and improve the quality of the processed surface. 3. Suitable for three-dimensional curved surface processing: Since the taper ball end mill has a tapered head and a spherical tip, it is suitable for complex three-dimensional curved surface processing, such as engraving, concave and convex surface processing, etc. 4. High cutting efficiency: The taper ball end mill has a larger cutting depth and tilt angle, which can complete a larger range of cutting in one processing, improving cutting efficiency. Tapered ball end mills are widely used in mold manufacturing, aerospace, automobile manufacturing, medical equipment and other fields to process complex curved surface structures and parts. When using a taper ball end mill, it is necessary to select the appropriate tool size, material and cutting parameters according to the specific processing requirements to ensure the processing effect and quality;

[0003] After the existing partially taper ball milling cutter has been used for a period of time, the tool holder is easily damaged. Since the tool holder and tool seat used are usually set as an integrated structure, they cannot be disassembled, which makes it inconvenient to replace or maintain the tool holder in the later stage. Therefore, a new taper ball milling cutter is proposed. Utility Model Content

[0004] The utility model aims to provide a novel taper ball milling cutter to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of tapered ball milling cutter, comprising a tool seat and a tool handle, the lower surface of the tool seat is fixedly connected to a connecting rod, the outer side wall of the connecting rod is provided with a limit block, the tool handle is arranged on the lower side of the tool seat, the upper surface of the tool handle is provided with a connecting groove, the inner side wall of the connecting groove is slidingly connected to the outer side wall of the connecting rod and the limit block, the outer side wall of the tool handle is provided with evenly distributed spiral cutting edges, each of the spiral cutting edges is correspondingly provided with a spiral discharge groove, the lower end of the tool handle is provided with a ball head blade, the inner side wall of the limit block is provided with a threaded hole, and the inner side wall of the threaded hole is threadedly connected with a fixing bolt.

[0006] As a further preferred embodiment of the present technical solution: the inner side walls of the knife seat and the knife handle are both provided with water grooves, the inner side wall of the spiral drainage groove is provided with evenly distributed water outlet holes, the water outlet holes are connected to the water grooves, and the water outlet holes are arranged in a spiral shape.

[0007] As a further preferred embodiment of the present technical solution: a sealing gasket is sleeved between the lower surface of the knife seat and the upper surface of the knife handle.

[0008] As a further preferred embodiment of the present technical solution: the outer side wall of the knife handle is symmetrically provided with mounting grooves.

[0009] As a further preferred embodiment of the present technical solution: a chip guard bucket is fixedly connected to the outer side wall of the tool handle.

[0010] As a further preferred embodiment of the present technical solution: the tool holder and the tool handle are made of high-speed steel, and the surface is coated with a nano coating.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model connects the tool holder and the tool handle by inserting the connecting rod and the limit block into the connecting groove, and the limit block can be stuck in the connecting groove to prevent the tool handle from rotating, so that the threaded hole can be aligned with the through hole of the tool handle, and the fixing bolt is screwed into the threaded hole, and the tool handle on the tool holder can be replaced and installed, and cooling water can be injected into the water groove to cool the milling cutter from the inside, thereby reducing the damage caused by the milling cutter due to excessive temperature. High-speed steel has good strength, and the nano-coating further improves the strength and wear resistance of the milling cutter, making the tool handle not easy to be damaged. The tool holder and the tool handle are separately arranged and can be quickly disassembled, which is convenient for replacement or maintenance of the tool handle at a later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front structural schematic diagram of the utility model;

[0014] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the threaded hole and the fixing bolt in the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of the connecting groove, thread cutting edge and spiral discharge groove in the utility model.

[0017] In the figure: 1. tool holder; 2. connecting rod; 3. limit block; 4. tool handle; 5. connecting groove; 6. spiral cutting edge; 7. spiral discharge groove; 8. ball head blade; 9. threaded hole; 10. fixing bolt; 11. water trough; 12. water outlet hole; 13. sealing gasket; 14. mounting groove; 15. chip bucket. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application, and cannot be understood as limitations on the present application. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0020] See also Figure 1-4 The utility model provides a technical solution: a new type of taper ball milling cutter, including a tool seat 1 and a tool handle 4, the lower surface of the tool seat 1 is fixedly connected with a connecting rod 2, the outer side wall of the connecting rod 2 is provided with a limit block 3, the tool handle 4 is arranged on the lower side of the tool seat 1, and a connecting groove 5 is opened on the upper surface of the tool handle 4. The inner side wall of the connecting groove 5 is slidably connected with the outer side wall of the connecting rod 2 and the limit block 3. The outer side wall of the tool handle 4 is provided with evenly distributed spiral cutting edges 6, each spiral cutting edge 6 is correspondingly provided with a spiral discharge groove 7, and the lower end of the tool handle 4 is provided with a ball head blade 8, and the limit A threaded hole 9 is provided on the inner wall of the positioning block 3, and a fixing bolt 10 is threadedly connected to the inner wall of the threaded hole 9; by inserting the connecting rod 2 and the limiting block 3 into the connecting groove 5, the tool holder 1 and the tool handle 4 are connected, and the limiting block 3 can be stuck in the connecting groove 5, so that the tool handle 4 cannot rotate, so that the threaded hole 9 can be aligned with the through hole provided in the tool handle 4, and the fixing bolt 10 is screwed into the threaded hole 9, and the tool handle 4 on the tool holder 1 can be replaced and installed. The tool holder 1 and the tool handle 4 are arranged separately and can be quickly disassembled, which is convenient for replacing or maintaining the tool handle 4 at a later time.

[0021] In the present embodiment, specifically: the inner side walls of the tool holder 1 and the tool handle 4 are both provided with a water groove 11, the inner side wall of the spiral drainage groove 7 is provided with evenly distributed water outlet holes 12, the water outlet holes 12 are connected to the water groove 11, and the water outlet holes 12 are spirally arranged; cooling water is injected into the water groove 11 to cool the milling cutter from the inside, and the cooling water is discharged through the water outlet holes 12 to clean the spiral drainage groove 7, thereby reducing damage to the milling cutter due to overtemperature.

[0022] In this embodiment, specifically: a sealing gasket 13 is sleeved between the lower surface of the tool holder 1 and the upper surface of the tool handle 4; the sealing gasket 13 has a certain compensation property, so that the tool holder 1 and the tool handle 4 fit tightly and can prevent the coolant from flowing out from the connection gap.

[0023] In this embodiment, specifically: the outer side wall of the handle 4 is symmetrically provided with mounting grooves 14; the mounting grooves 14 facilitate the installation of the milling cutter on the equipment for use.

[0024] In this embodiment, specifically: the outer wall of the tool handle 4 is fixedly connected with a chip blocking bucket 15; the chip blocking bucket 15 can block iron chips and cooling water to reduce pollution to the equipment.

[0025] In this embodiment, specifically: the tool holder 1 and the tool handle 4 are made of high-speed steel, and the surface is coated with a nano coating; the high-speed steel has good strength, and the nano coating further improves the strength and wear resistance of the milling cutter.

[0026] The working principle of the utility model is as follows: by inserting the connecting rod 2 and the limiting block 3 into the connecting groove 5, the tool holder 1 and the tool handle 4 are connected, the limiting block 3 can be stuck in the connecting groove 5, so that the tool handle 4 cannot rotate, so that the threaded hole 9 can be aligned with the through hole opened in the tool handle 4, and the fixing bolt 10 is screwed into the threaded hole 9, and the tool handle 4 on the tool holder 1 can be replaced and installed, and cooling water can be injected into the water groove 11 to cool the milling cutter from the inside, and the cooling water is discharged through the water outlet 12, and the spiral drainage groove 7 can be cleaned to reduce the damage of the milling cutter due to excessive temperature. High-speed steel has good strength. Through nano-coating, the strength and wear resistance of the milling cutter are further improved, so that the tool handle 4 is not easy to be damaged. The tool holder 1 and the tool handle 4 are separately arranged and can be quickly disassembled, which is convenient for replacing or maintaining the tool handle 4 in the later stage.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel taper ball milling cutter, comprising a cutter seat (1) and a cutter handle (4), characterized in that: The lower surface of the knife seat (1) is fixedly connected to a connecting rod (2), the outer side wall of the connecting rod (2) is provided with a limit block (3), the knife handle (4) is arranged on the lower side of the knife seat (1), the upper surface of the knife handle (4) is provided with a connecting groove (5), the inner side wall of the connecting groove (5) is slidably connected to the outer side walls of the connecting rod (2) and the limit block (3), the outer side wall of the knife handle (4) is provided with evenly distributed spiral cutting edges (6), each of the spiral cutting edges (6) is correspondingly provided with a spiral discharge groove (7), the lower end of the knife handle (4) is provided with a ball head edge (8), the inner side wall of the limit block (3) is provided with a threaded hole (9), and the inner side wall of the threaded hole (9) is threadedly connected with a fixing bolt (10); The inner side walls of the knife seat (1) and the knife handle (4) are both provided with water grooves (11), and the inner side wall of the spiral drainage groove (7) is provided with evenly distributed water outlet holes (12), the water outlet holes (12) are connected to the water grooves (11), and the water outlet holes (12) are arranged in a spiral shape.

2. A new taper ball milling cutter according to claim 1, characterized in that: A sealing gasket (13) is sleeved between the lower surface of the knife seat (1) and the upper surface of the knife handle (4).

3. A new taper ball milling cutter according to claim 1, characterized in that: The outer side wall of the knife handle (4) is symmetrically provided with mounting grooves (14).

4. The novel taper ball milling cutter according to claim 1 is characterized in that: A chip blocking bucket (15) is fixedly connected to the outer side wall of the tool handle (4).

5. The novel taper ball milling cutter according to claim 1 is characterized in that: The knife seat (1) and the knife handle (4) are made of high-speed steel and are coated with a nano coating on their surfaces.

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