A milling cutter with chamfering function

Abstract

This utility model relates to the field of milling cutter technology and discloses a milling cutter with chamfering function, including a cutter handle and a milling cutter body. The top of the milling cutter body is clamped and installed in the bottom clamping structure of the cutter handle. A groove is formed on the surface of the milling cutter body. External thread structures are provided at both the top and bottom of the milling cutter body. An internal thread kit and a chamfering component are slidably installed in the groove and on the surface of the milling cutter body, respectively. The internal thread kit can apply pressure and limit the top of the chamfering component during the helical locking process with the external thread structure at the bottom of the milling cutter body. A positioning screw is installed between the bottom of the internal thread kit and the top of the chamfering component. This utility model forms a multi-functional chamfering structure through the chamfering component, positioning screw, and internal thread kit. After being used alternately with the two external thread structures set at the top and bottom of the milling cutter body, it can provide chamfering conditions for the edges and corners of the milled workpiece without interfering with the cutting use of the milling cutter body itself.

Description

Technical Field

[0001] This utility model relates to the field of milling cutter technology, specifically to a milling cutter with a chamfering function. Background Technology

[0002] A milling cutter, a rotating cutting tool with one or more cutting teeth, is used for milling operations. During operation, each cutting tooth sequentially and intermittently removes the excess material from the workpiece, ensuring good machining effect and quality. It is now commonly used on milling machines to machine planes, steps, grooves, shaped surfaces, and cut off workpieces, and has a wide range of applications.

[0003] In recent years, with the increasing demands for processing in related industries, the edges and corners of workpieces after milling with a milling cutter need to be chamfered simultaneously to reduce the impact on subsequent processes. In actual processing, chamfering is simple and quick, but to achieve the chamfering purpose, additional tools, tool holders, and repeated replacements and installations are required, which is time-consuming and increases processing costs, hindering the optimization of the overall processing technology. Therefore, in view of the shortcomings of existing milling cutters, the applicant aims to provide a milling cutter with chamfering function to solve the problem. Utility Model Content

[0004] This invention provides a milling cutter with chamfering function, which solves the problems mentioned in the background art.

[0005] This utility model provides the following technical solution: a milling cutter with chamfering function, including a handle and a cutter body. The top of the cutter body is clamped and installed in the bottom clamping structure of the handle. A groove is formed on the surface of the cutter body. External thread structures are provided at the top and bottom of the cutter body. An internal thread kit and a chamfering component are slidably installed in the groove and on the surface of the cutter body, respectively. The internal thread kit can apply pressure to limit the top of the chamfering component during the spiral locking process with the external thread structure at the bottom of the cutter body. A positioning screw is installed between the bottom of the internal thread kit and the top of the chamfering component. The chamfering component is synchronously raised and lowered by locking the internal thread kit with the positioning screw.

[0006] Preferably, the milling cutter body includes a milling cutter shank, and the bottom of the milling cutter shank is provided with a cutting end, and the bottom of the cutting end is provided with no less than two cutting ends, so as to ensure that the milling cutter body has a good cutting effect during use.

[0007] Preferably, the slide is configured as a T-shaped structure, and the number of slides is not less than two and they are equidistantly distributed along the circumference of the milling cutter bar.

[0008] Preferably, the internal thread kit includes an internal thread sleeve body and a guide sleeve. The guide sleeve is fixed to the bottom of the internal thread sleeve body and is co-centered with the internal thread sleeve body. The inner side of the internal thread sleeve body and the inner side of the guide sleeve can be snapped into the surface of the milling cutter rod, which is flexible in use. The surface of the guide sleeve is provided with a positioning screw hole, and the positioning screw hole is set as a blind hole structure to avoid excessive rotation.

[0009] Preferably, the chamfering component includes a support cylinder frame, with a plurality of beveled chamfering blades arranged and installed along the circumference of its own structure at the bottom of the support cylinder frame, and a plurality of T-shaped sliders arranged along the circumference of its own structure at the top of the support cylinder frame. The T-shaped sliders can be engaged with the inner side of the bottom of the corresponding slide groove, and the top of the T-shaped sliders is provided with a clearance hole that can be aligned with the positioning screw hole and a combination groove that can be engaged with the bottom structure of the guide sleeve.

[0010] The positioning screw specifically adopts a T-shaped structure, and one end of the positioning screw can limit and lock the T-shaped slider and the slide groove by passing through the clearance hole and being threadedly connected to the positioning screw hole.

[0011] Preferably, a torsion plate is fixed to the end surface of the positioning screw away from the milling cutter body to facilitate twisting and applying force, and a flat groove is provided on the surface of the support sleeve corresponding to the installation position of the positioning screw to create good pressure conditions.

[0012] Preferably, the surface of the internal threaded sleeve body is provided with several arc grooves along its own structure circumferentially, thereby providing favorable conditions for subsequent comfortable screwing force application. In addition, during the spiral locking process between the internal threaded sleeve body and the external thread structure provided at the top of the milling cutter rod, it can fit and connect with the surface of the bottom structure of the tool handle. Then, by using the cooperation between the internal threaded sleeve body and the tool handle, the connection stroke between the internal threaded sleeve body and the milling cutter body is limited and protected to avoid excessive movement.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model forms a multi-functional chamfering structure by setting chamfering components, positioning screws and internal thread kits. After being used in conjunction with the two external thread structures set at the top and bottom of the milling cutter body, it can provide chamfering conditions for the edges and corners of the milled workpiece without interfering with the cutting of the milling cutter body itself, thus fully solving the problems existing in the prior art.

[0015] 2. The multi-functional chamfering structure of this utility model can be replaced specifically or as a whole modularly when some parts of its structure are damaged during the assembly and use with the milling cutter body, making it flexible and efficient to use. Attached Figure Description

[0016] Figure 1A schematic diagram showing the cutting preparation for the structure of this utility model;

[0017] Figure 2 A schematic diagram showing the chamfering of the structure of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the milling cutter body of this utility model;

[0019] Figure 4 This is an enlarged schematic diagram of the sliding groove structure of this utility model;

[0020] Figure 5 This is a three-dimensional schematic diagram of the internal threaded assembly of this utility model.

[0021] Figure 6 This is an enlarged schematic diagram of the internal threaded assembly of this utility model.

[0022] Figure 7 This is an enlarged schematic diagram of the chamfered component of this utility model.

[0023] Figure 8 This is an enlarged schematic diagram of the positioning screw of this utility model.

[0024] In the diagram: 1. Tool holder; 2. Milling cutter body; 21. Milling cutter shank; 22. Cutting end; 3. Slide groove; 4. External thread structure; 5. Internal thread assembly; 51. Internal thread sleeve body; 52. Guide sleeve; 6. Chamfering component; 61. Support sleeve; 62. T-slider; 63. Beveled chamfering insert; 7. Positioning screw; 8. Positioning screw hole; 9. Combination groove; 10. Clearance hole. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-8 A milling cutter with chamfering function includes a handle 1 and a cutter body 2. The top of the cutter body 2 is clamped and installed in the bottom clamping structure of the handle 1. The cutter body 2 includes a cutter shank 21. The bottom of the cutter shank 21 is provided with a cutting end 22, and the bottom of the cutting end 22 is provided with no less than two cutting ends to ensure that the cutter body 2 has a good cutting effect during use. The surface of the cutter body 2 is provided with a groove 3. The groove 3 is set with a T-shaped structure, and the number of grooves 3 is no less than two and is evenly distributed along the circumference of the cutter shank 21.

[0027] The top and bottom of the milling cutter body 2 are provided with external thread structure 4. The internal thread kit 5 and the chamfering component 6 are slidably installed in the slide groove 3 and on the surface of the milling cutter body 2, respectively. The internal thread kit 5 can apply top pressure limit to the top of the chamfering component 6 during the spiral locking process with the external thread structure 4 at the bottom of the milling cutter body 2. A positioning screw 7 is installed between the bottom of the internal thread kit 5 and the top of the chamfering component 6, and the chamfering component 6 can be synchronously raised and lowered by locking the internal thread kit 5 with the positioning screw 7.

[0028] The internal thread kit 5 includes an internal thread sleeve body 51 and a guide sleeve 52. The guide sleeve 52 is fixed to the bottom of the internal thread sleeve body 51 and is set at the same center as the internal thread sleeve body 51. The inner side of the internal thread sleeve body 51 and the inner side of the guide sleeve 52 can be snapped into the surface of the milling cutter shank 21, making it flexible to use. The surface of the guide sleeve 52 is provided with a positioning screw hole 8, and the positioning screw hole 8 is set as a blind hole structure to avoid excessive rotation.

[0029] The surface of the internal threaded sleeve body 51 has several arc grooves along its own structure circumference, which provides favorable conditions for subsequent comfortable screwing force application. In addition, during the spiral locking process between the internal threaded sleeve body 51 and the external thread structure 4 set on the top of the milling cutter shank 21, it can fit and connect with the surface of the bottom structure of the tool handle 1. Then, by using the cooperation between the internal threaded sleeve body 51 and the tool handle 1, the connection stroke between the internal threaded sleeve body 51 and the milling cutter body 2 is limited and protected to avoid excessive movement.

[0030] The chamfering component 6 includes a support frame 61. Several beveled chamfering blades 63 are arranged and installed along the circumference of the bottom of the support frame 61. Several T-shaped sliders 62 are arranged along the circumference of the top of the support frame 61. The T-shaped sliders 62 can be engaged in the inner side of the bottom of the corresponding slide groove 3. The top of the T-shaped sliders 62 is provided with a clearance hole 10 that can be aligned with the positioning screw hole 8 and a combination groove 9 that can be engaged with the bottom structure of the guide sleeve 52.

[0031] The positioning screw 7 adopts a T-shaped structure, and one end of the positioning screw 7 can be threaded through the clearance hole 10 and connected to the positioning screw hole 8 to limit and lock the T-shaped slider 62 and the slide groove 3. A torsion plate is fixed on the end surface of the positioning screw 7 away from the milling cutter body 2 to facilitate twisting and applying force. The support sleeve 61 has a flat groove on the surface corresponding to the installation position of the positioning screw 7 to create good pressure conditions.

[0032] Example 1

[0033] For milling operations, the top of the milling cutter body 2 is clamped and assembled with the clamping structure at the bottom of the cutter handle 1. After completion, the internal thread assembly 5 is screwed and the internal thread assembly 5 is helically separated from the external thread structure 4 at the bottom of the milling cutter body 2. At the same time, the chamfering component 6 rotates synchronously with the internal thread assembly 5. Then, the assembly formed by the internal thread assembly 5, the chamfering component 6, and the positioning screw 7 is moved upward to make room for the cutting end 22, thus meeting the subsequent milling operations.

[0034] Before the cutting end 22 is used, the internal threaded assembly 5 is threadedly connected to the external threaded structure 4 set on the top of the milling cutter shank 21. At the same time, the chamfering component 6 moves upward in a spiral motion along with the internal threaded assembly 5. After the top of the internal threaded assembly 5 contacts the bottom structure of the tool holder 1 and is limited, one end of the positioning screw 7 is threaded through the clearance hole 10 and connected to the positioning screw hole 8 to limit and lock the chamfering component 6 and the slide groove 3, thereby avoiding interference caused by the chamfering component 6 during the cutting process of the cutting end 22.

[0035] Example 2

[0036] For the chamfered structure of the milled workpiece, unscrew the positioning screw 7, press down the chamfering component 6 and move it down through the snap-fit ​​guide of the T-shaped slider 62 and the slide groove 3 until the T-shaped slider 62 is in contact with the bottom inner wall of the slide groove 3 and is limited. At this time, the cutting surface of the beveled chamfering blade 63 is flush with the cutting surface of the cutting end 22.

[0037] Next, screw the internal thread assembly 5 and helically separate the internal thread assembly 5 from the external thread structure 4 at the bottom of the milling cutter body 2. After completion, move the internal thread assembly 5 down and thread it to connect with the external thread structure 4 at the top of the milling cutter shank 21 until the bottom structure of the guide sleeve 52 fills and limits the combined groove 9 at the top of the T-slider 62. Then, with the engagement of the slide groove 3 and the T-slider 62, the chamfering insert 63 and the T-slider 62 to be used later are doubly limited. Then, one end of the positioning screw 7 is threaded through the clearance hole 10 and connected to the positioning screw hole 8 to limit and lock the chamfering component 6 and the slide groove 3, realizing the third limiting and locking of the support cylinder 61. After completion, the chamfering component 6 is rotated synchronously with the tool holder 1 and the milling cutter body 2 and automatically chamfers the edges and corners of the workpiece along the preset trajectory.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0039] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A milling cutter with a chamfering function, comprising a tool shank (1) and a milling cutter body (2). The top of the milling cutter body (2) is clamped and installed in the clamping structure at the bottom of the tool shank (1), and it is characterized in that: A chute (3) is provided on the surface of the milling cutter body (2). External thread structures (4) are provided at both the top and bottom of the milling cutter body (2). An internally threaded sleeve (5) and a chamfering component (6) are respectively slidably installed in the chute (3) and on the surface of the milling cutter body (2). During the process of spiral locking between the internally threaded sleeve (5) and the external thread structure (4) at the bottom of the milling cutter body (2), the top of the chamfering component (6) is subjected to pressing and limiting. A positioning screw rod (7) is installed between the bottom of the internally threaded sleeve (5) and the top of the chamfering component (6). The chamfering component (6) is synchronously lifted and lowered by locking the positioning screw rod (7) with the internally threaded sleeve (5).

2. The milling cutter with a chamfering function according to claim 1, wherein: The milling cutter body (2) includes a milling cutter rod (21). A cutting end (22) is provided at the bottom of the milling cutter rod (21), and there are no less than two cutting ends at the bottom of the cutting end (22).

3. The milling cutter with a chamfering function according to claim 2, wherein: The chute (3) is arranged in a T-shaped structure, and the number of chutes (3) is no less than two and is evenly distributed along the circumferential direction of the milling cutter rod (21).

4. A milling cutter with a chamfering function according to claim 2, characterized in that: The internally threaded sleeve (5) includes an internally threaded sleeve body (51) and a guide sleeve (52). The guide sleeve (52) is fixed to the bottom of the internally threaded sleeve body (51) and is concentric with the internally threaded sleeve body (51). The inner sides of both the internally threaded sleeve body (51) and the guide sleeve (52) can be clamped and connected to the surface of the milling cutter rod (21). A positioning screw hole (8) is provided on the surface of the guide sleeve (52), and the positioning screw hole (8) is arranged in a blind hole structure.

5. A milling cutter with a chamfering function according to claim 4, characterized in that: The chamfering component (6) includes a support cylinder frame (61). A number of bevel chamfering blades (63) are installed along the circumferential direction of the bottom of the support cylinder frame (61). A number of T-shaped sliders (62) are arranged along the circumferential direction of the top of the support cylinder frame (61). The T-shaped sliders (62) can be clamped inside the bottom of the corresponding chute (3). A relief hole (10) that can be aligned with the positioning screw hole (8) and a combination groove (9) that can be clamped with the bottom structure of the guide sleeve (52) are provided at the top of the T-shaped sliders (62). The positioning screw rod (7) is specifically arranged in a T-shaped structure, and one end of the positioning screw rod (7) can limit and lock the T-shaped slider (62) and the chute (3) by passing through the relief hole (10) and being threadedly connected to the positioning screw hole (8).

6. The milling cutter with a chamfering function according to claim 5, wherein: A torsion plate is fixed to the surface of the end of the positioning screw rod (7) away from the milling cutter body (2). A flat groove is provided on the surface of the support cylinder frame (61) corresponding to the installation position of the positioning screw rod (7).

7. A milling cutter with a chamfering function according to claim 4, characterized in that: A number of arc-shaped grooves are provided along the circumferential direction of the surface of the internally threaded sleeve body (51). During the process of spiral locking between the internally threaded sleeve body (51) and the external thread structure (4) provided at the top of the milling cutter rod (21), it can be in surface contact connection with the surface of the bottom structure of the tool handle (1).

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