High-strength end mill arbor

Abstract

The utility model relates to the technical field of milling cutter assemblies, and discloses a high-strength end mill arbor which comprises an arbor body, an end mill head is arranged at one end of the arbor body, a group of arc-shaped alloy steel shells are fixedly connected to the middle of the annular outer side wall of the arbor body, and an inner cavity is formed in the center of the other end of the arbor body. An alloy steel column is fixedly connected to the center of the inner side wall of one end of the inner cavity, the four arc-shaped alloy steel shells are annularly arranged at equal intervals, and the inner side walls of the opposite sides of the four arc-shaped alloy steel shells are fixedly welded to the outer end of the rod body. The plurality of arc-shaped alloy steel shells are annularly arranged on the outer side of the cutter bar main body of the end milling cutter bar, the central alloy steel column is arranged in the cutter bar main body of the end milling cutter bar, the plurality of alloy steel reinforcing strips are arranged on the outer side of the central alloy steel column in a matched mode, and the cutter bar main body of the whole end milling cutter bar is provided with a reinforcing structure with the inner portion and the outer portion combined. And after long-time driving application, the rod body of the end mill rod is not easy to wear or deform due to compression.

Description

Technical Field

[0001] The utility model relates to the technical field of milling cutter components, in particular to a high-strength end milling cutter rod. Background Art

[0002] End mills are the most commonly used milling cutters on CNC machine tools. End mills have cutting blades on the cylindrical surface and end face, which can be used for cutting at the same time or separately. They are mainly used for plane milling, groove milling, step milling and profile milling, and end mills include end mill shanks.

[0003] The utility model with the prior art publication number CN213317932U relates to an end milling cutter bar, which is provided with an overload protection mechanism. When the force is too large or too fast, the auxiliary gear will be misaligned with the protection ring to avoid driving the cutter bar body at the same speed, so as not to damage the workpiece, thereby protecting the workpiece and reducing the scrap rate; multiple groups of heat dissipation holes are provided to reduce the temperature of the cutter bar body when in use, and multiple groups of weight reduction holes are provided to reduce the load on the cutter bar body when in use, thereby increasing the service life of the cutter bar body.

[0004] However, the above device still has the following problems when in use: the arbor body of the end mill arbor itself does not have a structural reinforcement mechanism. After long-term driving and use, the arbor body of the end mill arbor is very easy to wear or deform under pressure. In addition, the matching installation structure of the end mill arbor is single and can only be assembled in a spring clip set clamping method, and its matching installation flexibility is general. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a high-strength end milling cutter bar, which solves the problems raised by the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-strength end milling cutter rod, comprising a rod body, an end milling cutter head is arranged at one end of the rod body, a group of arc-shaped alloy steel shells are fixedly connected to the middle of the annular outer wall of the rod body, an inner cavity is opened at the center of the other end of the rod body, an alloy steel column is fixedly connected to the center of the inner wall of one end of the inner cavity, a group of the arc-shaped alloy steel shells is four and arranged in an annular shape with equal distance, the inner walls of the four arc-shaped alloy steel shells facing each other are fixedly welded to the outer end of the rod body, and the annular outer wall of the alloy steel column is fixedly connected to A group of alloy steel reinforcement strips, wherein the group of alloy steel reinforcement strips is four and arranged in a circular shape with equal distances, the four alloy steel reinforcement strips are fixedly connected to the inner wall of the inner cavity at one end away from each other, a plurality of arc-shaped alloy steel shells are arranged in a ring on the outer side of the arbor body of the end mill arbor, a central alloy steel column is arranged in the arbor body of the end mill arbor, and a plurality of alloy steel reinforcement strips are arranged on the outer side of the central alloy steel column, the arbor body of the whole end mill arbor is provided with an internal and external combined reinforcement structure, and after long-term driving and use, the arbor body of the end mill arbor is not easy to wear or deform under pressure.

[0009] As a further solution of the utility model: the other end of the alloy steel column is kept flush with the end face of the other end of the rod body, and a threaded groove is opened at the center position of the outer wall of the other end of the alloy steel column. The center alloy steel column 9 of the end milling cutter rod has a threaded groove at the center position of the outer wall of the other end. It can be equipped with a bolt connection assembly to be installed with the machining center drive assembly, and can also be assembled by a spring clamp set clamping method through its outer rod body. The overall installation method is not single, and its installation flexibility is good.

[0010] As a further solution of the utility model: the rod body and the end mill head are both made of carbide steel, the end mill head is fixedly welded to one end of the rod body, and the end mill main body component is made of carbide steel, and the strength of the main body component is good.

[0011] As a further solution of the utility model: four blade grooves are opened at equal angles on the outer periphery of the outer wall at one end of the end mill head, and the blade grooves are inclined notch grooves. A milling cutter is fixedly connected in the blade groove, and a through hole is opened at the center position of the milling cutter. A circular groove is opened at the center position of the outer wall at one end of the end mill head. After the overall end mill is connected to the machining center drive assembly, it can be driven to rotate, and its high-speed rotating end mill can perform milling processing on the workpiece to be processed through its multiple milling cutters.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, a plurality of arc-shaped alloy steel shells are annularly arranged on the outer side of the arbor body of the end mill arbor, a central alloy steel column is arranged inside the arbor body of the end mill arbor, and a plurality of alloy steel reinforcement strips are arranged on the outer side of the central alloy steel column. The arbor body of the whole end mill arbor is provided with an internal and external combined reinforcement structure. After long-term driving and application, the arbor body of the end mill arbor is not easy to wear or deform under pressure.

[0014] 2. In the utility model, a threaded groove is provided at the center of the outer wall of the other end of the central alloy steel column of the end milling cutter rod, which can be installed with the driving assembly of the machining center in conjunction with a bolt connection assembly, or assembled by a spring clamp set clamping method through the outer rod body. The overall installation method is not single, and the installation flexibility is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the utility model;

[0016] Figure 2 It is a side view of the cutter head structure of the utility model;

[0017] Figure 3 It is a front cross-sectional view of a partial rod body of the utility model;

[0018] Figure 4 It is a side view of the rod body of the utility model.

[0019] In the figure: 1. rod body; 2. arc-shaped alloy steel shell; 3. end milling cutter head; 4. blade groove; 5. milling cutter; 6. through hole; 7. circular groove; 8. inner cavity; 9. alloy steel column; 10. threaded groove; 11. alloy steel reinforcement strip. DETAILED DESCRIPTION

[0020] 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. 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 creative work are within the scope of protection of the utility model.

[0021] It should be noted that the milling cutter 5 is a prior art and common knowledge to those skilled in the art, and will not be described in detail herein.

[0022] See also Figures 1 to 4In the embodiment of the utility model, a high-strength end milling cutter bar comprises a rod body 1, an end milling cutter head 3 is arranged at one end of the rod body 1, a group of arc-shaped alloy steel shells 2 are fixedly connected to the middle of the annular outer wall of the rod body 1, an inner cavity 8 is opened at the center of the other end of the rod body 1, an alloy steel column 9 is fixedly connected to the center of the inner wall of one end of the inner cavity 8, a group of arc-shaped alloy steel shells 2 are four and arranged in an annular shape with equal distance, the inner walls of the four arc-shaped alloy steel shells 2 facing each other are fixedly welded to the outer end of the rod body 1, and a group of alloy steel reinforcement strips 11 are fixedly connected to the annular outer wall of the alloy steel column 9 A group of alloy steel reinforcement strips 11 consists of four and are arranged in a circular shape with equal distances. The four alloy steel reinforcement strips 11 are fixedly connected to the inner wall of the inner cavity 8 at one end away from each other. A plurality of arc-shaped alloy steel shells 2 are arranged in a ring on the outer side of the arbor body of the end mill arbor, and a central alloy steel column 9 is arranged in the arbor body of the end mill arbor, and a plurality of alloy steel reinforcement strips 11 are arranged on the outer side of the central alloy steel column 9. The arbor body of the overall end mill arbor is provided with an internal and external combined reinforcement structure. After long-term driving and application, the rod body 1 of the end mill arbor is not easy to wear or deform under pressure.

[0023] The other end of the alloy steel column 9 is kept flush with the end face of the other end of the rod body 1, and a thread groove 10 is opened at the center position of the outer wall of the other end of the alloy steel column 9. The center alloy steel column 9 of the end milling cutter rod has a thread groove 10 at the center position of the outer wall of the other end. It can be installed with the bolt connection assembly and the machining center drive assembly, and can also be assembled by spring clamping through its outer rod body 1. The overall installation method is not single, and its installation flexibility is good.

[0024] The rod body 1 and the end milling cutter head 3 are both made of carbide steel. The end milling cutter head 3 is fixedly welded to one end of the rod body 1. The main body component of the end milling cutter is made of carbide steel, and the strength of the main body component is good.

[0025] Four blade grooves 4 are opened at equal angles on the outer periphery of the outer wall at one end of the end mill head 3. The blade grooves 4 are inclined notched grooves. A milling cutter 5 is fixedly connected in the blade groove 4. A through hole 6 is opened at the center position of the milling cutter 5. A circular groove 7 is opened at the center position of the outer wall at one end of the end mill head 3. After the integral end mill is connected to the driving assembly of the machining center, it can be driven to rotate. The high-speed rotating end mill can perform milling processing on the workpiece to be processed through its multiple milling cutters 5.

[0026] The working principle of the utility model is as follows: a plurality of arc-shaped alloy steel shells 2 are arranged in an annular manner on the outer side of the arbor body of the end mill arbor, a central alloy steel column 9 is arranged inside the arbor body of the end mill arbor, and a plurality of alloy steel reinforcement strips 11 are arranged on the outer side of the central alloy steel column 9 in cooperation with the arbor body of the end mill arbor. The arbor body of the integral end mill arbor is provided with an internal and external reinforcement structure. After long-term driving and use, the rod body 1 of the end mill arbor is not easy to wear or deform under pressure. In addition, a threaded groove 10 is provided at the center position of the outer side wall of the other end of the central alloy steel column 9 of the end mill arbor, which can be matched with a bolt connection component for matching installation with a machining center drive component, and can also be assembled by a spring clamp set clamping method through its outer rod body 1. The overall matching installation method is not single, and its matching installation flexibility is good. After the integral end mill is connected to the machining center drive component, it can be driven to rotate, and its high-speed rotating end mill can perform milling processing of the workpiece to be processed through its multiple milling cutters 5.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high-strength end milling cutter bar, comprising a rod body (1), wherein an end milling cutter head (3) is arranged at one end of the rod body (1); Features: A group of arc-shaped alloy steel shells (2) are fixedly connected to the middle of the annular outer wall of the rod body (1); an inner cavity (8) is opened at the center of the other end of the rod body (1); and an alloy steel column (9) is fixedly connected to the center of the inner wall of one end of the inner cavity (8); A group of the arc-shaped alloy steel shells (2) consists of four pieces which are arranged in a circular shape with equal distances, and the inner side walls of the four arc-shaped alloy steel shells (2) facing each other are fixedly welded to the outer end of the rod body (1); A group of alloy steel reinforcement strips (11) are fixedly connected to the annular outer side wall of the alloy steel column (9); the other end of the alloy steel column (9) is kept flush with the end surface of the other end of the rod body (1); and a thread groove (10) is provided at the center of the outer side wall of the other end of the alloy steel column (9).

2. A high-strength end milling cutter bar according to claim 1, characterized in that: A group of the alloy steel reinforcement strips (11) consists of four strips which are arranged in a circular shape and at equal distances.

3. The high-strength end milling cutter bar according to claim 1, characterized in that: The four alloy steel reinforcement strips (11) are fixedly connected to the inner wall of the inner cavity (8) at one end away from each other.

4. The high-strength end milling cutter bar according to claim 1, characterized in that: The rod body (1) and the end milling cutter head (3) are both made of hard alloy steel, and the end milling cutter head (3) is fixedly welded to one end of the rod body (1).

5. The high-strength end milling cutter bar according to claim 1, characterized in that: Four cutting edge grooves (4) are formed at equal angles on the outer periphery of the outer wall of one end of the end milling cutter head (3), and the cutting edge grooves (4) are inclined notched grooves.

6. The high-strength end milling cutter bar according to claim 5, characterized in that: A milling cutter (5) is fixedly connected inside the cutting edge groove (4), and a through hole (6) is provided at the center of the milling cutter (5).

7. The high-strength end milling cutter bar according to claim 1, characterized in that: A circular groove (7) is provided at the center of the outer wall of one end of the end milling cutter head (3).

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