CN213647910U - Combined cutter for key frame milling pit and pit milling machine table - Google Patents
Combined cutter for key frame milling pit and pit milling machine table Download PDFInfo
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- CN213647910U CN213647910U CN202020904139.XU CN202020904139U CN213647910U CN 213647910 U CN213647910 U CN 213647910U CN 202020904139 U CN202020904139 U CN 202020904139U CN 213647910 U CN213647910 U CN 213647910U
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- milling cutter
- milling
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- pit
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Abstract
The utility model discloses a compound cutter and a pit milling machine platform for key frame pit milling, wherein the compound cutter comprises a main milling cutter and two saw blades; the saw blades are respectively fixed on two sides of a main milling cutter, the central axis of each saw blade is aligned with the central axis of the main milling cutter, the thickness of each saw blade is smaller than that of the main milling cutter, and the outer diameter of each saw blade is larger than that of the main milling cutter. Through setting up the saw bit in main milling cutter both sides, because the saw bit external diameter is greater than main milling cutter external diameter, when milling the hole, the main milling cutter in the middle of the both sides saw bit is earlier contact the medium plate, processes out the recess earlier in the both sides of processing position, when treating main milling cutter contact medium plate, because main milling cutter separates the recess with hole position both sides, can not touch the timber of hole position both sides, can avoid the timber of medium plate both sides to collapse rotten, promotes processingquality.
Description
Technical Field
The utility model relates to a piano processing equipment technical field especially relates to a gang tool who is used for key frame to mill hole and mills hole board.
Background
In the processing of piano, need mill the pit operation to preceding, the medium plate of keyboard key frame, current operating scheme is: before milling the pit, a front plate and a middle plate of a key frame are flatly placed in a reference positioning gear of a pit milling machine table, the front plate and the middle plate are flatly placed, then a knob is screwed to fix the positions of the front plate and the middle plate, an alloy milling cutter is moved one by one according to the positioning on the pit milling machine table to mill three pits with the width of 62mm and the depth of 6mm, and then the abrasive paper plate is used for deburring. Because the middle plate is made of the clamping plate material, the middle plate material is easy to be broken too much or even scrapped by utilizing the milling pit of the existing alloy milling cutter, and the processing quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a first-line object provides a gang tool for key frame mills hole, more is fit for milling the hole to the splint material, can avoid appearing the key frame material and collapse rotten phenomenon.
Another object of the present invention is to provide a milling machine.
In order to realize the first purpose, the utility model provides a following technical scheme:
a compound cutter for key frame milling pits comprises a main milling cutter and two saw blades; the saw blades are respectively fixed on two sides of a main milling cutter, the central axis of each saw blade is aligned with the central axis of the main milling cutter, the thickness of each saw blade is smaller than that of the main milling cutter, and the outer diameter of each saw blade is larger than that of the main milling cutter.
As a further preferable scheme, a convex ring is arranged in the middle of the side surface of the main milling cutter, and a central hole matched with the convex ring is arranged in the center of the saw blade.
As a further preferable scheme, the saw blade is provided with positioning holes, and the positioning holes and the central hole are arranged at intervals.
As a further preferred scheme, the saw blade is fixed with the main milling cutter through screws, and the screws penetrate through the corresponding positioning holes.
As a further preferable mode, the saw blade is provided with a plurality of saw teeth on the periphery, and the saw teeth of the two saw blades are aligned.
To achieve the second objective, the present invention provides the following technical solutions:
a pit milling machine comprises the key frame pit milling compound cutter.
Compared with the prior art, the utility model discloses the beneficial effect who reaches is:
this combined cutter sets up the saw bit in main milling cutter both sides, because the saw bit external diameter is greater than main milling cutter external diameter, when milling the hole, the main milling cutter in the middle of the both sides saw bit is earlier contact the medium plate, processes out the recess earlier in the both sides of processing position, when treating main milling cutter contact medium plate, because main milling cutter separates the recess with hole position both sides, can not touch the timber of hole position both sides, can avoid the timber of medium plate both sides to collapse rotten, promotes processingquality.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a perspective view of a compound tool for key frame milling of a pit according to the present invention;
fig. 2 is a schematic structural diagram of the main milling cutter of the present invention;
FIG. 3 is a schematic view of the structure of the saw blade of the present invention;
FIG. 4 is a schematic structural view of a key frame pit machine of the present invention;
in the figure, a main milling cutter 1; a through hole 11; a convex ring 12; a blade 13; a saw blade 2; saw teeth 21; positioning holes 22; a central bore 23; a compound tool 100; a pit milling machine 200; a positioning rail 201; a motor 202.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and embodiments. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "left", "right", "inner", "outer" and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Examples
Referring to fig. 1-3, the present embodiment provides a compound cutting tool for key frame milling, which is used for key frame front plate and middle plate milling. The composite cutter comprises a main milling cutter 1 and two saw blades 2 which are respectively fixed on two sides of the main milling cutter, and a through hole 11 is formed in the middle of the main milling cutter and is used for being matched with a cutter rotating shaft of a milling pit machine table to be fixed; the outer side of the main milling cutter is provided with blades 13 which are distributed at equal intervals; and a convex ring 12 for limiting the saw blade is arranged in the middle of the side surface of the main milling cutter. The central axis of the saw blade is aligned with the central axis of the main milling cutter, the thickness of the saw blade is smaller than that of the main milling cutter, and the outer diameter of the saw blade is larger than that of the main milling cutter. In this embodiment, the outer diameter of the saw blade is 2mm larger than the outer diameter of the main mill. The center of the saw blade is provided with a center hole 23 matched with the convex ring 12, and the outer side of the saw blade is provided with saw teeth 21 which are uniformly arranged. The saw blade is also provided with a plurality of locating holes 22 spaced from the central hole. When the saw blade is installed, the central hole of the saw blade is sleeved with the convex ring, and then the saw blade passes through the corresponding positioning hole by screws to be locked and fixed with the main milling cutter. The saw teeth of the two saw blades are aligned in position and staggered with the cutting edge of the main milling cutter.
Referring to fig. 4, during machining, the composite tool 100 is fixed by a tool holder of the pit milling machine 200, the front plate and the middle plate of the key frame are placed in a reference positioning rail 201 of the pit milling machine, the front plate and the middle plate are placed flat, then the knob is screwed, the positions of the front plate and the middle plate are fixed, the pit milling machine is started, the motor 202 of the machine drives the composite tool, and the composite tool 100 rotates and moves the pits one by one according to the positioning on the machine. Because the saw bit external diameter is greater than main milling cutter external diameter, when milling the hole, the main milling cutter of both sides saw bit more middle contacts the medium plate earlier, processes out the recess earlier in the both sides of processing position, when treating main milling cutter contact medium plate, because main milling cutter separates the recess with hole position both sides, can not touch the timber of hole position both sides, can avoid the timber of medium plate both sides to collapse rotten, promotes processingquality.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A compound cutter for key frame milling pits is characterized by comprising a main milling cutter and two saw blades; the saw blades are respectively fixed on two sides of a main milling cutter, the central axis of each saw blade is aligned with the central axis of the main milling cutter, the thickness of each saw blade is smaller than that of the main milling cutter, and the outer diameter of each saw blade is larger than that of the main milling cutter.
2. A compound tool for key frame milling of pits according to claim 1, characterized in that the middle of the side of the main mill is provided with a bead, and the center of the saw blade is provided with a center hole matching the bead.
3. A compound tool for key frame milling of pits as set forth in claim 2, wherein the saw blade is provided with locating holes spaced from the central hole.
4. A compound tool for key frame milling of pits as set forth in claim 3, characterized in that the saw blade is fixed with the master mill by screws passing through corresponding locating holes.
5. A compound tool for key frame crater milling according to claim 1, characterized in that the outer circumference of the saw blade is provided with a plurality of teeth, the teeth of two saw blades being aligned.
6. A pit milling machine comprising the compound cutter for key frame pit milling according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020904139.XU CN213647910U (en) | 2020-05-26 | 2020-05-26 | Combined cutter for key frame milling pit and pit milling machine table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020904139.XU CN213647910U (en) | 2020-05-26 | 2020-05-26 | Combined cutter for key frame milling pit and pit milling machine table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213647910U true CN213647910U (en) | 2021-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020904139.XU Active CN213647910U (en) | 2020-05-26 | 2020-05-26 | Combined cutter for key frame milling pit and pit milling machine table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213647910U (en) |
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2020
- 2020-05-26 CN CN202020904139.XU patent/CN213647910U/en active Active
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