Hard alloy milling cutter with screw handle

Abstract

The utility model relates to the technical field of milling cutters, in particular to a screw shank hard alloy milling cutter which comprises a hard alloy milling cutter body, a square assembly boss is integrally formed at the top end of the hard alloy milling cutter body, a connecting sleeve is sleeved above the square assembly boss, and an inserting handle is fixed on the surface of the connecting sleeve. The inserting handle is inserted into the top face of the hard alloy milling cutter body, an edge groove is formed in the side wall of the hard alloy milling cutter body, an elastic band is fixed between the top face and the bottom face of the edge groove, a limiting inserting block is fixed to the surface of the elastic band, one end of the limiting inserting block is inserted into the surface of the inserting handle, and a screw is integrally formed at the top end of the connecting sleeve. The screw rod cutter handle hard alloy milling cutter has the beneficial effects that the screw rod becomes an optional mounting structure at the top of the hard alloy milling cutter body through the design of adding the square splicing boss and the connecting sleeve. A user can flexibly select whether the screw is installed or not according to actual machining requirements, and the universality and flexibility of the tool are improved.

Description

Technical Field

[0001] The utility model relates to the field of milling cutters, in particular to a carbide milling cutter with a screw shank. Background Art

[0002] In traditional machining, carbide milling cutters are essential cutting tools. Their structural design and mounting method directly impact machining efficiency and tool life. Traditional carbide milling cutters are typically fixed directly to the toolholder fixture. While simple, this approach lacks flexibility and prevents the rapid replacement or addition of accessories, such as screws, to meet specific machining needs. This traditional design is particularly inadequate in applications where screw fixation is required to enhance tool stability and precision.

[0003] In addition, the stability of the connection between the carbide milling cutter and the tool holder is also a key factor affecting the processing quality. If the connection is not firm, it is easy for the tool to deviate or fall off during high-speed rotation, which not only affects the processing accuracy but also may cause safety accidents. Utility Model Content

[0004] The purpose of the utility model is to provide a carbide milling cutter with a screw shank to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a carbide milling cutter with a screw shank, comprising a carbide milling cutter body, the top of which is integrally formed with a square assembly boss, a connecting sleeve is provided above the square assembly boss, a plug handle is fixed on the surface of the connecting sleeve, the plug handle is plugged into the top surface of the carbide milling cutter body, a side groove is provided on the side wall of the carbide milling cutter body, an elastic band is fixed between the top surface and the bottom surface of the side groove, a limiting plug block is fixed on the surface of the elastic band, one end of the limiting plug block is plugged into the surface of the plug handle, and a screw is integrally formed on the top of the connecting sleeve. Preferably, the connecting sleeve is a cylindrical structure, the inner ring of the connecting sleeve is a square mouth structure, the square mouth matches the square assembly boss, the connecting sleeve is arranged on the square assembly boss, and the top surface of the square mouth overlaps the square assembly boss.

[0006] Preferably, the insert handle is a square plate, and there are two insert handles, which are symmetrically distributed about the inner ring opening of the connecting sleeve. The insert handle is inserted into the slot, and the slot is opened on the top surface of the carbide milling cutter body, and the slot and the insert handle correspond one to one.

[0007] Preferably, the side groove is an annular groove, the elastic band is an annular sleeve, the outer ring diameter of the elastic band is equal to the rod diameter of the carbide milling cutter body, the limiting plug is fixed on the inner ring surface of the elastic band, the limiting plug passes through the through hole, the through hole is opened on the surface of the side groove, and the through hole is connected to the slot.

[0008] Preferably, one end of the limiting plug extending into the slot is provided with an inclined surface, the inclined surface faces the notch of the slot, one end of the limiting plug is inserted into the positioning opening, and the positioning opening is provided on the surface of the inserting handle.

[0009] Preferably, the other end of the limiting plug is provided with a notch, and there are two notches, which are parallel to each other.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The screw-shank carbide milling cutter proposed in the utility model, by adding the design of a square assembly boss and a connecting sleeve, makes the screw an optional mounting structure on the top of the carbide milling cutter body. Users can flexibly choose whether to install the screw according to actual processing needs, thereby improving the versatility and flexibility of the tool; the connecting sleeve and the carbide milling cutter body are connected by the square assembly boss and the plug-in structure of the handle and the slot, as well as the cooperation of the elastic band and the limit plug, to achieve multiple fixing and anti-slip mechanisms. This design not only enhances the connection strength between the connecting sleeve and the milling cutter body, but also effectively prevents the loosening and falling off of the connecting sleeve during high-speed rotation, thereby improving the stability and safety of the processing process; by designing a specific slot and limit plug structure, users can easily disassemble and assemble the connecting sleeve without the aid of special tools. This design not only simplifies the maintenance process, but also reduces maintenance costs and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a top view of the structure of the utility model;

[0014] Figure 3 for Figure 2 Structural cross-section view at AA in the middle;

[0015] Figure 4 for Figure 3 A schematic diagram of the structure at center A;

[0016] Figure 5 This is a schematic diagram of the connection structure of the connecting sleeve and the plug handle of the utility model;

[0017] Figure 6 This is a schematic diagram of the structure of the carbide milling cutter body of the utility model;

[0018] Figure 7 This is a schematic diagram of the connection structure between the limit plug and the elastic band of the utility model.

[0019] In the figure: carbide milling cutter body 1, square assembly boss 2, connecting sleeve 3, handle 4, slot 5, side groove 6, through hole 7, limit plug 8, elastic band 9, notch 10, positioning port 11, screw 12. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-Figure 7 The utility model provides a technical solution: a screw handle carbide milling cutter, comprising a carbide milling cutter body 1, the top of the carbide milling cutter body 1 is integrally formed with a square assembly boss 2, the upper part of the square assembly boss 2 is provided with a connecting sleeve 3, the connecting sleeve 3 is a cylindrical structure, the inner ring of the connecting sleeve 3 is a square mouth structure, the square mouth and the square assembly boss 2 match, after the connecting sleeve 3 is set on the square assembly boss 2, the top surface of the square mouth overlaps the square assembly boss 2; the reason for adding the square assembly The boss 2 and the connecting sleeve 3 are for setting the screw 12 as an optional installation structure on the top of the carbide milling cutter body 1. The screw 12 is optionally installed as needed, that is, when the screw 12 is not needed, the top of the carbide milling cutter body 1 can be directly fixed on the tool holder clamp; when the screw 12 is needed, the connecting sleeve 3 is buckled on the square assembly boss 2 to avoid rotation between the connecting sleeve 3 and the carbide milling cutter body 1, and then the subsequent connection and fixation of the carbide milling cutter body 1 and the connecting sleeve 3 are carried out.

[0022] A handle 4 is fixed on the surface of the connecting sleeve 3, and the handle 4 is inserted into the top surface of the carbide milling cutter body 1. The handle 4 is a square plate. There are two handles 4, and the two handles 4 are symmetrically distributed about the inner ring of the connecting sleeve 3. The handle 4 is inserted into the slot 5, and the slot 5 is opened on the top surface of the carbide milling cutter body 1. The slot 5 and the handle 4 correspond one to one; when the connecting sleeve 3 is provided with the square assembly boss 2, in order to enhance the anti-deviation effect between the carbide milling cutter body 1 and the connecting sleeve 3, the handle 4 is inserted into the corresponding slot 5 at this time, and the handle 4 cooperates with the subsequent limiting structure to realize the anti-slip traction of the connecting sleeve 3.

[0023] The side wall of the carbide milling cutter body 1 is provided with a side groove 6, and an elastic band 9 is fixed between the top surface of the side groove 6 and the bottom surface of the side groove 6. A limiting plug 8 is fixed on the surface of the elastic band 9, and one end of the limiting plug 8 is inserted into the surface of the plug handle 4. A screw 12 is integrally formed on the top of the connecting sleeve 3. The side groove 6 is an annular groove, and the elastic band 9 is an annular sleeve. The outer ring diameter of the elastic band 9 is equal to the rod diameter of the carbide milling cutter body 1, and the limiting plug 8 is fixed on the inner ring surface of the elastic band 9. The limiting plug 8 passes through the through hole 7, which is provided on the surface of the side groove 6, and the through hole 7 is connected to the slot 5. The end of the limiting plug 8 extending into the slot 5 is provided with a bevel, and the bevel faces the notch of the slot 5. One end of the limiting plug 8 is inserted in the positioning port 11, and the positioning port 11 is provided on the surface of the plug handle 4. The other end of the limiting plug 8 is provided with a notch 10, and there are two notches 10, and the two notches 10 are parallel.

[0024] When the handle 4 is inserted into the slot 5, as the handle 4 is pushed into the slot 5, one end of the handle 4 pushes the limit plug 8 along the inclined surface. The limit plug 8 slides along the perforation 7 after being pushed, and the limit plug 8 tensions the elastic band 9 to produce elastic deformation until the handle 4 is fully inserted into the slot 5. At this time, the connecting sleeve 3 is sleeved on the square assembly boss 2, and the positioning hole 11 and the limit plug 8 are opposite. At this time, the elastic band 9 rebounds and pushes the limit plug 8 back. One end of the limit plug 8 is inserted into the positioning hole 11, that is, the handle 4 is braked in the slot 5, so the connecting sleeve 3 will not fall off from the top of the carbide milling cutter body 1; when the connecting sleeve 3 and the screw 12 need to be removed from the top of the carbide milling cutter body 1, the finger is picked up at the missing groove 10 through the elastic band 9, and the tensioned elastic band 9 drives the limit plug 8 to be pulled out from the positioning hole 11. At this time, there is no brake between the handle 4 and the slot 5, and the handle 4 can be pulled out from the slot 5.

[0025] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screw shank carbide milling cutter, comprising a carbide milling cutter body (1), characterized in that: The top of the carbide milling cutter body (1) is integrally formed with a square assembly boss (2), the upper portion of the square assembly boss (2) is sleeved with a connecting sleeve (3), the surface of the connecting sleeve (3) is fixed with a plug handle (4), the plug handle (4) is plugged into the top surface of the carbide milling cutter body (1), the side wall of the carbide milling cutter body (1) is provided with a side groove (6), an elastic band (9) is fixed between the top surface of the side groove (6) and the bottom surface of the side groove (6), a limiting plug block (8) is fixed on the surface of the elastic band (9), one end of the limiting plug block (8) is plugged into the surface of the plug handle (4), and a screw (12) is integrally formed on the top of the connecting sleeve (3).

2. A screw shank carbide milling cutter according to claim 1, characterized in that: The connecting sleeve (3) is a cylindrical structure, and the inner ring opening of the connecting sleeve (3) is a square opening structure, the square opening matches the square assembly boss (2), and after the connecting sleeve (3) is sleeved on the square assembly boss (2), the top surface of the square opening overlaps the square assembly boss (2).

3. The screw shank carbide milling cutter according to claim 1, characterized in that: The inserting handle (4) is a square plate. Two inserting handles (4) are provided. The two inserting handles (4) are symmetrically distributed about the inner ring opening of the connecting sleeve (3). The inserting handle (4) is inserted into the slot (5). The slot (5) is opened on the top surface of the carbide milling cutter body (1). The slot (5) and the inserting handle (4) correspond one to one.

4. The screw shank carbide milling cutter according to claim 3, characterized in that: The side groove (6) is an annular groove, the elastic band (9) is an annular sleeve, the outer ring diameter of the elastic band (9) is equal to the rod diameter of the carbide milling cutter body (1), the limiting plug (8) is fixed on the inner ring surface of the elastic band (9), the limiting plug (8) passes through the through hole (7), the through hole (7) is opened on the surface of the side groove (6), and the through hole (7) is connected to the slot (5).

5. The screw shank carbide milling cutter according to claim 4, characterized in that: One end of the limiting plug (8) extending into the slot (5) is provided with an inclined surface, the inclined surface facing the notch of the slot (5), and one end of the limiting plug (8) is inserted into the positioning opening (11), which is provided on the surface of the inserting handle (4).

6. The screw shank carbide milling cutter according to claim 1, characterized in that: The other end of the limiting plug (8) is provided with a notch (10), and two notches (10) are provided, and the two notches (10) are parallel.

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