Split type eight-blade round nose tungsten steel milling cutter

Abstract

The utility model relates to the related technical field of milling cutters, in particular to a split type eight-blade round nose tungsten steel milling cutter which comprises a cutter handle and a cutter head, a connector is integrally formed at the lower side end of the cutter handle, a connecting groove is formed in the upper end face of the cutter head, and when the cutter head is actually installed, the connector is inserted into the connecting groove; according to the split-type eight-blade round-nose tungsten steel milling cutter, the cutter handle and the cutter head are combined to form the split-type eight-blade round-nose tungsten steel milling cutter, so that the cutter head which is easy to wear can be independently replaced through the split-type arrangement of the cutter handle and the cutter head, and the overall replacement cost of the tungsten steel milling cutter is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field related to milling cutters, in particular to a split eight-blade round nose tungsten steel milling cutter. Background Art

[0002] A milling cutter is a rotating tool with one or more teeth used for milling. Each tooth sequentially and intermittently removes the excess material from the workpiece during operation. Milling cutters are primarily used on milling machines to machine planes, steps, grooves, formed surfaces, and cut off workpieces.

[0003] However, traditional milling cutter structures are all integrated, and the wear part of the cutter body is usually the cutter head, while the shank part basically does not get damaged during actual use. Therefore, when the cutter head of the integrated milling cutter is damaged, the milling cutter needs to be replaced as a whole, resulting in a high replacement cost for the milling cutter. For this reason, the utility model proposes a split eight-blade round nose tungsten steel milling cutter to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide a split eight-blade round nose tungsten steel milling cutter to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solutions: a split eight-blade round nose tungsten steel milling cutter comprising:

[0006] A knife handle, wherein a connector is integrally formed on the lower side end of the knife handle;

[0007] The cutter head has a connecting groove on its upper end surface. When the cutter head is actually installed, the connecting head is plugged into the connecting groove.

[0008] Preferably, the knife handle is a carbon steel knife handle, and the knife head is a tungsten steel knife head.

[0009] Preferably, the cross section of the connecting groove is a regular hexagon, and the size of the connecting head matches the size of the connecting groove.

[0010] Preferably, a force rod mounting groove is provided on the knife handle and the connecting head, a mounting hole is provided through the side wall of the force rod mounting groove, a force rod is movably installed in the force rod mounting groove, the lower end surface edge position of the force rod is chamfered, a positioning piece is movably installed in the mounting hole, the outer end surface of the positioning piece is hemispherical, and the inner end surface edge position is chamfered.

[0011] Preferably, a positioning hole is provided on the side wall of the connecting groove, the positioning hole is a hemispherical notch, and three positioning holes are arranged on a circle, the mounting hole is arranged corresponding to the positioning hole, and when the force rod is fully inserted into the force rod mounting groove, the side wall of the force rod forms a supporting effect on the inner end of the positioning piece, and at this time, the outer end of the positioning piece is embedded in the positioning hole, and when the tool handle is connected to the tool holder on the machine tool, the force rod is abutted against the bottom of the tool holder mounting hole and is fully inserted into the force rod mounting groove.

[0012] Preferably, a support spring is provided at the bottom of the hole of the stress rod installation slot, and the outer end of the support spring is fixedly connected to a top plate. When the support spring is in a reset state, the upper end of the stress rod pops out to the outside of the stress rod installation slot.

[0013] Preferably, the positioning member is a carbon steel member, and a magnet block is embedded in the center of the positioning member.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. By setting up a split eight-edge round nose tungsten steel milling cutter composed of a tool holder and a cutter head, the tool holder and the cutter head are set separately, so that the cutter head that is easy to wear can be replaced separately, thereby effectively reducing the overall replacement cost of the tungsten steel milling cutter;

[0016] 2. By opening a stress rod mounting groove on the tool handle and the connecting head, and opening a mounting hole on the side wall of the stress rod mounting groove, and arranging a stress rod and a positioning piece in the stress rod mounting groove and the mounting hole respectively, and opening a positioning hole on the side wall of the connecting groove of the cutter head, the stress rod is supported when the tool handle is connected to the tool holder on the machine tool, so that the outer end of the positioning piece is embedded in the positioning hole, thereby forming a reinforced connection between the tool handle and the cutter head, thereby effectively improving the connection convenience of the tool handle and the cutter head. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a half-section view of the utility model;

[0019] Figure 3 for Figure 2 A schematic diagram of the structure at center A;

[0020] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point B in the middle;

[0021] Figure 5 This is a schematic diagram of the connection between the handle and the cutter head of the utility model;

[0022] Figure 6 for Figure 5 A magnified schematic diagram of the structure at point C in the middle;

[0023] Figure 7 This is a schematic diagram of the structure of the cutter head of the utility model;

[0024] Figure 8 This is a schematic diagram of the structure of the knife handle of the utility model.

[0025] In the figure: the handle 1, the cutter head 2, the connecting head 3, the connecting groove 4, the stress rod mounting groove 5, the mounting hole 6, the positioning hole 7, the positioning piece 8, the stress rod 9, the supporting spring 10, the top plate 11, and the magnet block 12. DETAILED DESCRIPTION

[0026] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "one," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] For the purpose of simplicity and illustration, the principles of the embodiments are described primarily with reference to examples. In the following description, many specific details are provided to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring the understanding of these embodiments. In addition, all embodiments may be used in combination with each other.

[0030] See also Figure 1-8 , the utility model provides the following three preferred embodiments:

[0031] Example 1

[0032] A split eight-blade round nose tungsten steel milling cutter includes a shank 1 and a cutter head 2. A connector 3 is integrally formed at the lower side end of the shank 1, and a connecting groove 4 is provided on the upper end surface of the cutter head 2. When the cutter head 2 is actually installed, the connector 3 is inserted into the connecting groove 4. The shank 1 is a carbon steel shank, and the cutter head 2 is a tungsten steel cutter head.

[0033] The cross section of the connecting groove 4 is a regular hexagon, and the size of the connecting head 3 is consistent with the size of the connecting groove 4. By setting a split eight-blade round nose tungsten steel milling cutter composed of a tool handle 1 and a tool head 2, the tool handle 1 and the tool head 2 are split, so that the tool head 2 that is easy to wear can be replaced separately, thereby effectively reducing the overall replacement cost of the tungsten steel milling cutter.

[0034] Example 2

[0035] On the basis of embodiment one, a force rod mounting groove 5 is provided on the tool handle 1 and the connecting head 3, and a mounting hole 6 is provided through the side wall of the force rod mounting groove 5. A force rod 9 is movably installed in the force rod mounting groove 5, and the lower end surface edge position of the force rod 9 is chamfered. A positioning member 8 is movably installed in the mounting hole 6, and the outer end surface of the positioning member 8 is hemispherical, and the inner end surface edge position is chamfered.

[0036] A positioning hole 7 is provided on the side wall of the connecting groove 4. The positioning hole 7 is a hemispherical notch, and there are three positioning holes 7 on the circumference. The mounting hole 6 is provided corresponding to the positioning hole 7. When the force rod 9 is fully inserted into the force rod mounting groove 5, the side wall of the force rod 9 forms a supporting effect on the inner end of the positioning member 8, and at this time, the outer end of the positioning member 8 is embedded in the positioning hole 7. When the tool handle 1 is connected to the tool seat on the machine tool, the force rod 9 is abutted against the bottom of the tool seat mounting hole and is fully inserted into the force rod mounting groove 5. A force-bearing rod mounting groove 5 is opened on the connecting head 3, and a mounting hole 6 is opened on the side wall of the force-bearing rod mounting groove 5, and a force-bearing rod 9 and a positioning member 8 are respectively arranged in the force-bearing rod mounting groove 5 and the mounting hole 6, and a positioning hole 7 is opened on the side wall of the connecting groove 4 of the cutter head 2, so that when the tool handle 1 is connected to the tool seat on the machine tool, a supporting effect is formed on the force-bearing rod 9, so that the outer end of the positioning member 8 is embedded in the positioning hole 7, thereby forming a reinforced connection between the tool handle 1 and the cutter head 2, thereby effectively improving the connection convenience of the tool handle 1 and the cutter head 2.

[0037] Example 3

[0038] On the basis of the second embodiment, a support spring 10 is provided at the bottom of the hole of the force-bearing rod mounting groove 5, and the outer end of the support spring 10 is fixedly connected to the top plate 11. When the support spring 10 is in the reset state, the upper end of the force-bearing rod 9 pops out to the outside of the force-bearing rod mounting groove 5, so that when the tool handle 1 is removed from the tool holder of the machine tool, the force-bearing rod 9 can automatically pop out a section, thereby facilitating the overall pulling out of the force-bearing rod 9.

[0039] The positioning member 8 is made of carbon steel, and a magnet block 12 is embedded in the center of the positioning member 8 , so that the positioning member 8 can move in the mounting hole 6 while being adsorbed by the magnet block 12 to prevent the positioning member 8 from falling out of the mounting hole 6 .

[0040] Although the above describes the illustrative specific implementation methods of the present application so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific implementation methods. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations based on the concept of the present application are protected.

Claims

1. A split eight-edge round nose tungsten steel milling cutter, characterized by: include: A knife handle (1), wherein a connector (3) is integrally formed on the lower side end of the knife handle (1); A cutter head (2) is provided with a connecting groove (4) on the upper end surface of the cutter head (2). When the cutter head (2) is actually installed, the connecting head (3) is inserted into the connecting groove (4).

2. A split eight-edge round nose tungsten steel milling cutter according to claim 1, characterized in that: The knife handle (1) is a carbon steel knife handle, and the knife head (2) is a tungsten steel knife head.

3. A split eight-edge round nose tungsten steel milling cutter according to claim 2, characterized in that: The cross section of the notch of the connecting groove (4) is a regular hexagon, and the size of the connecting head (3) matches the size of the connecting groove (4).

4. The split eight-edge round nose tungsten steel milling cutter according to claim 3, characterized in that: A force rod mounting groove (5) is provided on the knife handle (1) and the connector (3), a mounting hole (6) is provided through the side wall of the force rod mounting groove (5), a force rod (9) is movably installed in the force rod mounting groove (5), the lower end surface edge position of the force rod (9) is chamfered, a positioning member (8) is movably installed in the mounting hole (6), the outer end surface of the positioning member (8) is hemispherical, and the inner end surface edge position is chamfered.

5. The split eight-edge round nose tungsten steel milling cutter according to claim 4, characterized in that: A positioning hole (7) is provided on the side wall of the connecting groove (4), and the positioning hole (7) is a hemispherical notch, and three positioning holes (7) are arranged on the same circumference. The mounting hole (6) is arranged corresponding to the positioning hole (7). When the force rod (9) is fully inserted into the force rod mounting groove (5), the side wall of the force rod (9) forms a supporting effect on the inner end of the positioning member (8), and at this time, the outer end of the positioning member (8) is embedded in the positioning hole (7). When the tool handle (1) is connected to the tool holder on the machine tool, the force rod (9) is abutted against the bottom of the tool holder mounting hole and is fully inserted into the force rod mounting groove (5).

6. The split eight-edge round nose tungsten steel milling cutter according to claim 5, characterized in that: A support spring (10) is provided at the bottom of the hole of the stressed rod installation slot (5), and the outer end of the support spring (10) is fixedly connected to a top plate (11). When the support spring (10) is in a reset state, the upper end of the stressed rod (9) pops out to the outside of the stressed rod installation slot (5).

7. The split eight-edge round nose tungsten steel milling cutter according to claim 6, characterized in that: The positioning member (8) is a carbon steel member, and a magnet block (12) is embedded in the center of the positioning member (8).

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