Milling cutter for large-aperture machining

Abstract

The utility model relates to the technical field of milling cutters, and discloses a milling cutter for large-aperture machining, which comprises a mounting tooth holder, a milling cutter disc, a milling cutter structure, a built-in groove, a communicating groove, a limiting groove, a butt-joint locking groove, a limiting insert and a limiting mechanism, a spring is arranged in the built-in groove, and a shifting piece for controlling the pulling of the limiting insert is mounted at one end of the limiting insert. When the milling cutter disc is arranged outside the mounting tooth holder in a sleeving manner, firstly, a limiting inserting piece in a built-in groove can be pulled through a shifting piece to move towards the outside of the milling cutter disc, and when a limiting groove in the milling cutter disc moves to the position of a butt-joint locking groove in the periphery of the mounting tooth holder, the limiting inserting piece can be loosened; and the limiting inserting piece can move under the elastic rebound of the spring in the built-in groove, and enters the butt-joint locking groove outside the mounting tooth holder through the limiting groove to be correspondingly inserted, so that the mounting supporting area between the mounting tooth holder and the milling cutter disc is increased, and the effects of improving the mounting stability of the milling cutter and ensuring the milling machining quality of the milling cutter are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to milling cutter technical field especially, relates to a milling cutter for big aperture processing. BACKGROUND

[0002] Milling cutter is a rotary cutter with one or more teeth for milling processing. In the mechanical manufacturing industry, when machining large holes and cavities using numerical control machine tools, the pre-drilling method is generally adopted, and then the side edge of the end mill is used for milling processing.

[0003] In the practical new type milling cutter for big aperture processing with the application number 202222966025.X, the locking unit, the outer gear ring and the milling cutter body are used in cooperation to adjust the angle of the multiple milling cutter bodies according to the actual needs, so as to meet different processing requirements. However, when the outer gear ring drives the milling cutter disc to run at high speed, the limiting teeth on the limiting block and the outer gear ring are locked. The diameter of the tooth groove of the outer gear ring itself is small, while the shear force of the milling cutter disc itself is large. Therefore, the tooth groove of the outer gear ring itself is easily damaged and dislocated, which leads to unstable installation of the milling cutter disc and affects normal milling and cutting processing. Therefore, we propose a milling cutter for big aperture processing. CONTENT OF THE UTILITY MODEL

[0004] The utility model mainly solves the technical problems existing in the prior art and provides a milling cutter for big aperture processing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme. A milling cutter for big aperture processing includes a mounting tooth seat, a milling cutter disc and a milling cutter structure. An inner groove is formed in the inside of the milling cutter disc. The inner groove is a circular hollow groove body. A communication groove is formed in the outer periphery of the milling cutter disc and penetrates the inner groove. A limiting groove is formed in the inner side of the inner groove. A butt joint locking groove corresponding to the limiting groove is formed in the outer periphery of the mounting tooth seat. A limiting plug is arranged in the inner groove. The limiting plug is limited and slidably matched with the inner groove through a limiting mechanism on the outside of the limiting plug. A spring is arranged in the inner groove and sleeved on the outside of the limiting plug. A push piece for pulling and controlling the limiting plug is mounted at one end of the limiting plug.

[0006] As a preferred, when the limiting mechanism on the outside of the limiting plug is extruded by the spring in the default state, the limiting plug is in a limiting locking state in the butt joint locking groove in the mounting tooth seat through the limiting groove.

[0007] As a preferred, when the limiting plug moves to the outside of the milling cutter disc by pulling the push piece in the inner groove, the limiting plug is in a separated state in the butt joint locking groove in the mounting tooth seat through the limiting groove.

[0008] Preferably, a female thread is formed in the front inner side of the docking lock groove, and an external thread is formed in the periphery of one end of the limiting insert.

[0009] Preferably, after the limiting insert enters the interior of the docking lock groove, the external thread in the periphery of the limiting insert is threadedly connected with the female thread in the inner side of the docking lock groove.

[0010] The utility model provides a milling cutter for big aperture processing, has the following beneficial effects:

[0011] 1. The milling cutter for big aperture processing, when the milling cutter head is sleeved to the outside of the installation tooth holder, the limiting insert in the built-in groove can be first pulled to the outside of the milling cutter head, when the limiting groove in the milling cutter head moves to the docking lock groove position in the periphery of the installation tooth holder, the limiting insert can be loosened, and the limiting insert can move under the elastic rebound of the spring in the built-in groove and be inserted into the docking lock groove in the periphery of the installation tooth holder, so that the installation tooth holder and the milling cutter head increase the installation support area, thereby improving the installation stability of the milling cutter and ensuring the milling and cutting quality of the milling cutter.

[0012] 2. The milling cutter for big aperture processing, when the limiting insert is loosened, the limiting insert can rebound under the spring in the built-in groove and be inserted into the docking limiting groove, at this time, the limiting insert can be rotated, and one end of the limiting insert can be threadedly connected with the female thread in the inner side of the docking lock groove, so as to ensure the stability of the limiting insert in the docking lock groove and avoid the deviation of the limiting insert under the centrifugal force when the milling cutter head rotates, thereby improving the installation stability between the milling cutter head and the installation tooth holder. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed in the embodiments or the prior art description. Obviously, the drawings in the following description are only exemplary, and those skilled in the art can obtain other implementation drawings according to the provided drawings without creating any creative labor.

[0014] The structures, proportions, sizes, etc. shown in the specification are only used to cooperate with the content disclosed in the specification, to be understood and read by those skilled in the art, and are not used to limit the implementation conditions of the utility model, so they do not have technical significance, any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that the utility model can produce, should still fall within the scope of the technical content disclosed by the utility model.

[0015] Figure 1This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 For this utility model Figure 1 A magnified view of middle A;

[0017] Figure 3 It is a partial schematic diagram of the docking lock slot of the utility model.

[0018] Legend:

[0019] 1. Install the gear seat; 2. Milling cutter disc; 3. Milling cutter structure; 4. Built-in groove; 5. Connecting groove; 6. Limit groove; 7. Limit plug-in; 8. Limit mechanism; 9. Spring; 10. Pick; 11. Docking lock groove; 12. Internal thread; 13. External thread. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on 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] Example 1: A milling cutter for large-diameter machining, such as Figures 1-3 As shown, it includes an installation gear seat 1, a milling cutter disc 2, and a milling cutter structure 3. The interior of the milling cutter disc 2 is provided with a built-in groove 4, and the built-in groove 4 is a circular hollow groove body. The periphery of the milling cutter disc 2 is provided with a connecting groove 5 that passes through the built-in groove 4. A limiting groove 6 is provided on the inner side of the built-in groove 4. The periphery of the installation gear seat 1 is provided with a docking lock groove 11 corresponding to the limiting groove 6. A limiting plug-in 7 is provided inside the built-in groove 4. The outside of the limiting plug-in 7 is slidingly matched with the inside of the built-in groove 4 through a limiting mechanism 8. The interior of the built-in groove 4 is provided with a spring 9 that is sleeved on the outside of the limiting plug-in 7. A paddle 10 for pulling and controlling the limiting plug-in 7 is installed at one end of the limiting plug-in 7.

[0022] Furthermore, in the default state, when the limiting mechanism 8 outside the limiting plug-in 7 is squeezed by the spring 9, the limiting plug-in 7 is in a limiting and locking state in the docking lock groove 11 inside the mounting gear seat 1 through the limiting groove 6.

[0023] Furthermore, when the limiting plug-in 7 inside the built-in groove 4 is pulled toward the outside of the milling cutter disc 2 by the paddle 10, the limiting plug-in 7 is separated from the locking groove 11 inside the mounting gear seat 1 through the limiting groove 6.

[0024] Example 2: A milling cutter for large-diameter machining, such as Figures 1-3As shown, including installation tooth holder 1, milling cutter head 2, milling cutter structure 3, the inside of milling cutter head 2 is provided with built-in groove 4, built-in groove 4 is circular hollow groove body, the periphery of milling cutter head 2 is provided with the communication groove 5 of built-in groove 4, the inside of built-in groove 4 is provided with limit slot 6, the periphery of installation tooth holder 1 is provided with the butt joint lock slot 11 corresponding with limit slot 6, the inside of built-in groove 4 is provided with limit insert 7, the outside of limit insert 7 is limited by limit mechanism 8 and the inside limit sliding fit of built-in groove 4, the inside of built-in groove 4 is provided with spring 9 that is set in the outside of limit insert 7, limit insert 7 one end is installed to the limit insert 7 and is pulled control and is pulled 10.

[0025] Further, in the default state, when the limit mechanism 8 of the outside of limit insert 7 is extruded by spring 9, limit insert 7 is in a limit locking state in the butt joint lock slot 11 inside installation tooth holder 1 through limit slot 6, when limit insert 7 inside built-in groove 4 is pulled to move to the outside of milling cutter head 2 through the pull of tab 10, limit insert 7 is in a separation state in the butt joint lock slot 11 inside installation tooth holder 1 through limit slot 6.

[0026] Further, the inside front position of butt joint lock slot 11 is provided with internal thread 12, and the periphery of one end of limit insert 7 is provided with external thread 13.

[0027] Further, after limit insert 7 enters the inside of butt joint lock slot 11, the external thread 13 on the periphery of limit insert 7 is threadedly connected with the internal thread 12 on the inside of butt joint lock slot 11.

[0028] The working principle of the utility model:

[0029] When the milling cutter head 2 is set to the outside of installation tooth holder 1, limit insert 7 inside built-in groove 4 can be first pulled to move to the outside of milling cutter head 2 through the pull of tab 10, when limit slot 6 inside milling cutter head 2 moves to the butt joint lock slot 11 position on the periphery of installation tooth holder 1, limit insert 7 can be loosened, and limit insert 7 will move under the elastic rebound of spring 9 inside built-in groove 4, and correspondingly inserted into the butt joint lock slot 11 outside installation tooth holder 1 through limit slot 6, so that the installation support area between installation tooth holder 1 and milling cutter head 2 is increased, thereby improving the milling cutter installation stability, ensuring the milling cutter milling machining quality, and then rotating limit insert 7, one end of limit insert 7 can be threadedly connected with the internal thread 12 on the inside of butt joint lock slot 11 through external thread 13, ensuring the insertion stability of limit insert 7 inside butt joint lock slot 11, and avoiding that limit insert 7 generates centrifugal force deviation when milling cutter head 2 is running.

[0030] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A milling cutter for large-diameter machining, comprising a mounting tooth seat (1), a milling cutter disc (2), and a milling cutter structure (3), characterized in that: The milling cutter disc (2) is provided with a built-in groove (4) in a circular hollow groove body. The periphery of the milling cutter disc (2) is provided with a connecting groove (5) penetrating the built-in groove (4). A limiting groove (6) is provided on the inner side of the built-in groove (4). The periphery of the mounting gear seat (1) is provided with a docking lock groove (11) corresponding to the limiting groove (6). A limiting plug-in (7) is provided inside the built-in groove (4). The outside of the limiting plug-in (7) is slidingly matched with the inside of the built-in groove (4) through a limiting mechanism (8). A spring (9) is provided inside the built-in groove (4) and is sleeved on the outside of the limiting plug-in (7). A paddle (10) for pulling and controlling the limiting plug-in (7) is installed at one end of the limiting plug-in (7).

2. A milling cutter for large-diameter machining according to claim 1, characterized in that: In a default state, when the limiting mechanism (8) outside the limiting plug-in (7) is squeezed by the spring (9), the limiting plug-in (7) is in a limiting locking state in the docking lock groove (11) inside the mounting gear seat (1) through the limiting groove (6).

3. A milling cutter for large-diameter machining according to claim 2, characterized in that: When the limiting plug-in (7) inside the built-in groove (4) is pulled toward the outside of the milling cutter disc (2) by the paddle (10), the limiting plug-in (7) is separated from the internal docking lock groove (11) of the mounting tooth seat (1) through the limiting groove (6).

4. A milling cutter for large-diameter machining according to claim 3, characterized in that: An internal thread (12) is provided at the front inner side of the docking lock groove (11), and an external thread (13) is provided at the periphery of one end of the limiting plug-in unit (7).

5. The large-diameter milling cutter according to claim 4, characterized in that: After the limiting plug-in (7) enters the interior of the docking lock groove (11), the outer thread (13) on the periphery of the limiting plug-in (7) is threadedly connected and matched with the inner thread (12) on the inner side of the docking lock groove (11).

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