T-shaped milling cutter and method for forming concave buckling structure by machining through T-shaped milling cutter
阅读说明:本技术 T型铣刀和采用该t型铣刀加工形成内凹扣位结构的方法 (T-shaped milling cutter and method for forming concave buckling structure by machining through T-shaped milling cutter ) 是由 江炳宏 邹暁洪 苏业建 陈小全 周启英 于 2020-06-19 设计创作,主要内容包括:本发明提供了一种T型铣刀和采用该T型铣刀加工形成内凹扣位结构的方法。该T型铣刀包括刀柄和设于刀柄上的刀头,该刀柄具有中心轴线,该刀头包括若干个环绕中心轴线且间隔设置的切削刃;该切削刃包括沿中心轴线方向相对间隔设置的第一表面和第二表面、以及沿中心轴线方向延伸且间隔设置的第一侧壁和第二侧壁,该第一表面和第二表面分别设于各个侧壁的两端,该切削刃还包括自第一表面朝向第二表面方向凹陷形成的第一凹槽、以及自第二表面朝向第一表面方向凹陷形成的第二凹槽,第一凹槽和第二凹槽的两端均分别贯穿第一侧壁和第二侧壁。本发明提供的T型铣刀可以一次性加工形成内凹扣位结构,无需更换刀具,加工效率高。(The invention provides a T-shaped milling cutter and a method for forming an inwards concave buckling structure by machining the T-shaped milling cutter. The T-shaped milling cutter comprises a cutter handle and a cutter head arranged on the cutter handle, wherein the cutter handle is provided with a central axis, and the cutter head comprises a plurality of cutting edges which surround the central axis and are arranged at intervals; the cutting edge comprises a first surface and a second surface which are oppositely arranged at intervals along the direction of a central axis, a first side wall and a second side wall which are extended along the direction of the central axis and are arranged at intervals, the first surface and the second surface are respectively arranged at two ends of each side wall, the cutting edge also comprises a first groove formed by sinking the first surface towards the direction of the second surface and a second groove formed by sinking the second surface towards the direction of the first surface, and two ends of the first groove and two ends of the second groove respectively penetrate through the first side wall and the second side wall. The T-shaped milling cutter provided by the invention can be processed to form an inwards concave buckling structure at one time, the cutter does not need to be replaced, and the processing efficiency is high.)
1. A T-shaped milling cutter comprises a cutter handle and a cutter head arranged at one end of the cutter handle, wherein the cutter handle is provided with a central axis, and the T-shaped milling cutter is characterized in that the cutter head comprises a plurality of cutting edges which surround the central axis and are arranged at intervals; the cutting edge comprises a first surface and a second surface which are oppositely arranged at intervals along the direction of the central axis, and a first side wall and a second side wall which extend along the direction of the central axis and are arranged at intervals, and the first surface and the second surface are respectively arranged at two ends of each side wall; cutting edges are formed at the intersection of the first side wall and each surface, and the second side wall is an arc surface; the cutting edge further comprises a first groove formed by the first surface facing the second surface in a concave mode and a second groove formed by the second surface facing the first surface in a concave mode, the two ends of the first groove penetrate through the first side wall and the second side wall respectively, and the two ends of the second groove penetrate through the first side wall and the second side wall respectively.
2. The T-mill of claim 1, wherein the first groove includes a first groove wall distal from the shank central axis, and the second groove includes a second groove wall distal from the shank central axis, the first groove wall and the second groove wall being coplanar.
3. The T-mill according to claim 2, characterized in that the recess depth of the first recess is the same as the recess depth of the second recess.
4. The T-mill of claim 2, wherein the tool head further includes a base shaft connected to one end of the shank, and a plurality of the cutting edges are annularly disposed on the base shaft; the cutting edge further comprises a third side wall and a fourth side wall which extend along the central axis direction and are arranged at intervals; the third side wall connects the first side wall and the second side wall; one side of the fourth side wall is connected with the second side wall, and the other side of the fourth side wall is connected with the base shaft; and a cutting edge is formed at the intersection of the first side wall and the third side wall, and the side of the first side wall, which is far away from the third side wall, is connected with the base shaft.
5. The T-mill of claim 4, wherein the first recess further comprises a third slot wall spaced from the first slot wall, the third slot wall being disposed on the base shaft; and/or
The second groove further comprises a fourth groove wall arranged at an interval with the second groove wall, and the fourth groove wall is arranged on the base shaft.
6. The T-shaped milling cutter as set forth in claim 5, wherein the cutting edge further comprises a first relief portion concavely formed from a partial region of the first side wall toward the second side wall, the first relief portion comprising a first relief wall remote from the base shaft, the first relief wall communicating the first and second groove walls; and/or
The cutting edge further comprises a second avoiding part formed by sinking the partial region of the second side wall towards the direction of the first side wall, the second avoiding part comprises a second avoiding wall far away from the base shaft, and the second avoiding wall is communicated with the first groove wall and the second groove wall.
7. The T-shaped milling cutter according to claim 4, wherein first chip flutes are formed between adjacent cutting edges, and second chip flutes recessed in the direction of the central axis from the outer peripheral wall of the base shaft are provided on the base shaft between the adjacent cutting edges.
8. The T-shaped milling cutter according to any one of claims 3 to 7, characterized in that the cutting edge is of an integrally formed construction with the base shaft.
9. The T-shaped milling cutter according to any one of claims 1 to 7, wherein the shank and the cutting head are of one-piece construction.
10. A method for forming an inner concave buckling structure by using the T-shaped milling cutter as claimed in any one of claims 1 to 9, wherein the inner concave buckling structure is disposed on a workpiece to be processed, the workpiece to be processed comprises a first side surface and a second side surface which are oppositely disposed, and the inner concave buckling structure comprises a buckling groove which is concavely formed from the first side surface towards the second side surface, and a first buckling structure and a second buckling structure which are disposed in the buckling groove and are disposed at intervals, the buckling groove comprises a first joint surface and a second joint surface which are disposed at intervals, and a third joint surface which connects the first joint surface and the second joint surface, the first buckling structure is disposed on the first joint surface and is disposed at intervals with the third joint surface, the second buckling structure is disposed on the second joint surface and is disposed at intervals with the third joint surface, the method comprises the following steps:
controlling the T-shaped milling cutter to mill the workpiece to be machined from the first side surface to the second side surface so as to form a groove with a preset depth on the workpiece to be machined;
and controlling the T-shaped milling cutter to mill along a first direction and mill along the reverse direction of the first direction in sequence to form the concave buckling structure, wherein the first direction is parallel to the rotation axis direction of the T-shaped milling cutter.
Technical Field
The invention relates to the technical field of machining cutters, in particular to a T-shaped milling cutter and a method for forming an inwards concave buckling structure by machining through the T-shaped milling cutter.
Background
At present, most of electronic products adopt a mode of combining plastic and a metal frame body, and a glue pulling structure is usually arranged on the metal frame body to enhance the combination degree of the plastic and the metal frame body so as to improve the waterproof and dustproof performance of the electronic product. Referring to fig. 5, a schematic diagram of a novel adhesive pulling structure is shown, the novel
Disclosure of Invention
The invention aims to provide a T-shaped milling cutter and a method for forming an inwards concave buckling structure by adopting the T-shaped milling cutter, so as to solve the problem that the existing milling cutter or forming cutter cannot directly form the inwards concave buckling structure.
In order to solve the technical problem, the invention provides a T-shaped milling cutter, which comprises a cutter handle and a cutter head arranged at one end of the cutter handle, wherein the cutter handle is provided with a central axis, and the cutter head comprises a plurality of cutting edges which surround the central axis and are arranged at intervals; the cutting edge comprises a first surface and a second surface which are oppositely arranged at intervals along the direction of the central axis, and a first side wall and a second side wall which extend along the direction of the central axis and are arranged at intervals, and the first surface and the second surface are respectively arranged at two ends of each side wall; cutting edges are formed at the intersection of the first side wall and each surface, and the second side wall is an arc surface; the cutting edge further comprises a first groove formed by the first surface facing the second surface in a concave mode and a second groove formed by the second surface facing the first surface in a concave mode, the two ends of the first groove penetrate through the first side wall and the second side wall respectively, and the two ends of the second groove penetrate through the first side wall and the second side wall respectively.
Preferably, the first groove comprises a first groove wall far away from the central axis of the tool holder, the second groove comprises a second groove wall far away from the central axis of the tool holder, and the first groove wall and the second groove wall are located on the same plane.
Preferably, the recess depth of the first recess is the same as the recess depth of the second recess.
Preferably, the tool bit further comprises a base shaft connected with one end of the tool holder, and the plurality of cutting edges are annularly arranged on the base shaft; the cutting edge further comprises a third side wall and a fourth side wall which extend along the central axis direction and are arranged at intervals; the third side wall connects the first side wall and the second side wall; one side of the fourth side wall is connected with the second side wall, and the other side of the fourth side wall is connected with the base shaft; and a cutting edge is formed at the intersection of the first side wall and the third side wall, and the side of the first side wall, which is far away from the third side wall, is connected with the base shaft.
Preferably, the first groove further comprises a third groove wall arranged at an interval with the first groove wall, and the third groove wall is arranged on the base shaft; and/or
The second groove further comprises a fourth groove wall arranged at an interval with the second groove wall, and the fourth groove wall is arranged on the base shaft.
Preferably, the cutting edge further includes a first avoiding portion formed by being recessed from a partial region of the first side wall toward the second side wall, the first avoiding portion includes a first avoiding wall far away from the base shaft, and the first avoiding wall is communicated with the first groove wall and the second groove wall; and/or
The cutting edge further comprises a second avoiding part formed by sinking the partial region of the second side wall towards the direction of the first side wall, the second avoiding part comprises a second avoiding wall far away from the base shaft, and the second avoiding wall is communicated with the first groove wall and the second groove wall.
Preferably, adjacent form first chip guide groove between the cutting edge, adjacent be equipped with the second chip guide groove on the base shaft between the cutting edge, the second chip guide groove certainly the periphery wall of base shaft to the central axis direction is sunken to be formed.
Preferably, the cutting edge and the base shaft are of an integrally formed structure.
Preferably, the knife handle and the knife head are of an integrally formed structure.
In order to further solve the above technical problem, the present invention further provides a method for forming an inward concave buckling structure by using the above T-shaped milling cutter, wherein the inward concave buckling structure is disposed on a workpiece to be machined, the workpiece to be machined includes a first side surface and a second side surface which are oppositely disposed, the inward concave buckling structure includes a buckling groove which is concavely formed from the first side surface toward the second side surface, and a first buckling structure and a second buckling structure which are disposed in the buckling groove and are disposed at intervals, the buckling groove includes a first joint surface and a second joint surface which are disposed at intervals, and a third joint surface which connects the first joint surface and the second joint surface, the first buckling structure is disposed on the first joint surface and is disposed at intervals on the third joint surface, the second buckling structure is disposed on the second joint surface and is disposed at intervals on the third joint surface, the method comprises the following steps:
controlling the T-shaped milling cutter to mill the workpiece to be machined from the first side surface to the second side surface so as to form a groove with a preset depth on the workpiece to be machined;
and controlling the T-shaped milling cutter to mill along a first direction and mill along the reverse direction of the first direction in sequence to form the concave buckling structure, wherein the first direction is parallel to the rotation axis direction of the T-shaped milling cutter.
Compared with the prior art, the T-shaped milling cutter provided by the invention comprises a cutter handle and a cutter head arranged at one end of the cutter handle, wherein the cutter handle is provided with a central axis, and the cutter head comprises a plurality of cutting edges which surround the central axis and are arranged at intervals; the cutting edge includes the edge the relative first surface and the second surface that the interval set up of central axis direction, and follow the first lateral wall and the second lateral wall that central axis direction extends and the interval set up, each is located respectively to the first surface with the second surface the both ends of lateral wall, first lateral wall and each the crossing department in surface forms the cutting edge, the second lateral wall is the arc surface, the cutting edge still include certainly first surface orientation the sunken first recess that forms of second surface direction and certainly the second surface orientation the sunken second recess that forms of first surface direction, the both ends of first recess run through respectively first lateral wall with the second lateral wall, the both ends of second recess run through respectively first lateral wall with the second lateral wall. The T-shaped milling cutter provided by the invention can be used for milling to form a groove with a preset depth, then milling in the groove with the preset depth in the positive direction and the negative direction of the central axis direction in sequence, and because the cutting edge is provided with the first groove and the second groove, the first buckling structure and the second buckling structure which are arranged at intervals can be formed after milling in the positive direction and the negative direction of the central axis direction in sequence, and finally returning along the original cutter position, so that the novel glue pulling structure of the concave buckling structure can be formed by one-time processing, the cutter does not need to be replaced, and the processing efficiency is high.
Drawings
FIG. 1 is a schematic view of a T-shaped milling cutter according to an embodiment of the present invention;
FIG. 2 is a schematic view of the T-mill of FIG. 1 with the tool tip at another perspective;
FIG. 3 is another schematic view of a tool tip in a T-mill according to an embodiment of the invention;
FIG. 4 is a schematic diagram of forming an inward concave buckling structure by machining with a T-shaped milling cutter in the embodiment of the invention (FIG. 4(a) is a schematic diagram of forming a groove with a preset depth by milling; FIG. 4(b) is a schematic diagram of forming a first buckling structure by milling; FIG. 4(c) is a schematic diagram of forming a second buckling structure by milling; and FIG. 4(d) is a schematic diagram after milling is finished);
FIG. 5 is a schematic view of a novel zipper tape structure;
fig. 6 is a schematic flow chart of a method for forming an indent snap structure by using a T-shaped milling cutter according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 4, an embodiment of the present invention provides a T-
Please refer to fig. 4, which illustrates a schematic diagram of a structure of forming an inward concave buckling position by using the above-mentioned T-shaped milling cutter. The T-shaped milling cutter provided by the present invention may first mill to form a groove 34 having a predetermined depth, as shown in fig. 4 (a); then, milling is performed in the groove 34 with the preset depth in the positive direction and the negative direction of the central axis n direction, as shown in fig. 4(c) and 4 (b); as the
Preferably, in the embodiment, as shown in fig. 2 to 3, the
More preferably, as shown in the present embodiment, the recess depth of the
Optionally, in this embodiment, the tool bit 20 further includes a base shaft 22 connected to one end of the
In other embodiments of the present invention, the base shaft 22 may also be a ring structure, and is sleeved on the
Further, the
Preferably, in this embodiment, the
Preferably, as shown in the present embodiment, the cutting head 20 includes two
Optionally, as shown in fig. 3, in this embodiment, the
Optionally, in this embodiment, the
Preferably, a transition section (not shown) which is arranged in a conical shape is connected between the
Preferably, the
Preferably, the
Further, please refer to the flow chart of the method for forming the concave buckling structure by using the T-shaped milling cutter in the embodiment of the present invention shown in fig. 6, it should be noted that the processing method of the present invention is not limited to the flow sequence shown in fig. 6 if substantially the same result is obtained. In addition, it should be noted that, the indent is detained the bit architecture and is located on treating the machined part, treat that the machined part is including relative first side and the second side that sets up, the indent is detained the bit architecture and is included certainly first side to the sunken formation of second side direction is detained the position recess and is located detain in the position recess and the interval set up first knot bit architecture and second and detain the bit architecture, detain the position recess including the interval set up first composition surface and second composition surface and connect the third composition surface of first composition surface and second composition surface, first knot bit architecture is located first composition surface just the third composition surface interval sets up, the second is detained the bit architecture and is located the second composition surface and with the third composition surface interval sets up. As shown in fig. 6, the method includes the steps of:
step S201: and controlling the T-shaped milling cutter to mill the workpiece to be machined from the first side surface to the second side surface so as to form a groove with a preset depth on the workpiece to be machined.
Optionally, in step S201, a tool bit of the T-shaped milling cutter is adjusted to contact with the first side surface of the workpiece to be machined, then a distance that the tool bit moves in a direction from the first side surface to the second side surface and a distance that the tool bit moves in the forward and reverse directions of the central axis are preset, and after the setting is completed, milling is started.
Step S202: and controlling the T-shaped milling cutter to mill along a first direction and mill along the reverse direction of the first direction in sequence to form the concave buckling structure, wherein the first direction is parallel to the rotation axis direction of the T-shaped milling cutter.
In step S202, if the first direction is upward, the opposite direction of the first direction is downward; if the first direction is rightward, the opposite direction of the first direction is leftward. In either direction, the first direction is parallel to the direction of the axis of rotation of the T-mill.
The method for forming the concave buckling structure by using the T-shaped milling cutter provided by the embodiment of the invention can form the concave buckling structure by one-time processing without replacing a cutter, and has high processing efficiency. The concave buckling structure obtained by processing can obviously enhance the adhesion degree of plastic and metal and improve the waterproof and dustproof effects; the metal frame is suitable for the light and thin metal frame wall, the problem of shielding or interference on signal emission can be avoided, the light and thin electronic product can be realized, and the metal frame has wide application prospect.
While the foregoing is directed to embodiments of the present invention, it will be understood by those skilled in the art that various changes may be made without departing from the spirit and scope of the invention.
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