CN209754045U - Chamfering efficient sleeve type boring cutter bar - Google Patents
Chamfering efficient sleeve type boring cutter bar Download PDFInfo
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- CN209754045U CN209754045U CN201920395535.1U CN201920395535U CN209754045U CN 209754045 U CN209754045 U CN 209754045U CN 201920395535 U CN201920395535 U CN 201920395535U CN 209754045 U CN209754045 U CN 209754045U
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- cutter head
- chamfering
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Abstract
The utility model provides a high-efficient shell-type boring cutter bar capable of chamfering, which comprises a cutter handle, a cutter head, arc notches, a second boring blade, a chamfering blade and a cutting fluid passage, wherein the cutter head is installed at the front end of the cutter handle, the cutter head is a cylinder and is provided with two symmetrical transverse planes in parallel with the cutter head, the cutter head is provided with two arc notches, the center of the front part of the cutter head is provided with a trepanning, the trepanning is cylindrical, the diameter of the trepanning is larger than that of a workpiece excircle blank, a workpiece can penetrate into the trepanning, the end surface of the cutter head at the front part of the cutter head is a plane, a first boring blade and a second boring blade are arranged at the plane close to the arc notches at the end surface of the cutter head, the first boring blade and the second boring blade are symmetrically arranged, and a slender cutting fluid passage is arranged in a guide rod and, the cutter head is stressed uniformly, and the service life is long; the scrap of the workpiece can be washed from the inside, and the precision is higher.
Description
Technical Field
the utility model belongs to the metal cutting tool field, concretely relates to but high-efficient shell type boring cutter pole of chamfer.
Background
The boring cutter is one of boring cutters, a boring cutter rod used by a machining center, such as a common milling cutter, can machine a high-precision inner hole and an end face, a sleeve type boring cutter can be adopted for machining an excircle, as shown in fig. 1, the sleeve type boring cutter rod is developed by the company before, the high-speed rotation stability is strong, the machining efficiency is high, and some problems exist in the using process of the sleeve type boring cutter rod:
1. Chamfering tool needing to be replaced
most of the excircle after boring needs deburring and chamfering operations, only one blade is arranged, and the excircle in the workpiece can be cut only, for the chamfer circle workpiece shown in the attached figure 2 in the specification, the excircle and the chamfer in the workpiece need to be separately machined by two cutters, so that the cutters need to be replaced in the machining process of the workpiece by adopting the sleeve type boring cutter, the machining efficiency is low, and meanwhile, the machining precision is easy to be unstable;
2. the surface scratches and black spots of the workpiece caused by untimely chipping
Because the sleeve type boring cutter is used for placing a workpiece in the surrounding sleeve, when the cutting is carried out at a high speed and the cutting amount is large, scraps removed by the workpiece are easy to retain and are extruded with the boring cutter blade and the sleeve, the surface of the workpiece is scratched, and the workpiece is burnt due to high-speed rotation, so that black spots on the surface of the workpiece are caused;
3. for stability, the weight of the sleeve type boring cutter rod is larger
The requirement is provided for the power of the machining center, and the energy consumption is large.
SUMMERY OF THE UTILITY MODEL
The aforesaid that exists to prior art is not enough, the to-be-solved technical problem of the utility model is that current shell type boring cutter pole can't simultaneous processing chamfer, and the chip removal is not smooth, and the great influence of weight is energy-conserving.
In order to solve the technical problem, the utility model provides a high-efficiency sleeve type boring cutter bar capable of chamfering, which comprises a cutter handle, a cutter head, an arc notch, a second boring blade, a chamfering blade and a cutting fluid passage,
the front end of the knife handle is provided with a knife head which is a cylinder and is provided with two symmetrical transverse planes in parallel with the knife head, the knife head is provided with two arc-shaped notches, each arc-shaped notch comprises a plane provided with a blade mounting seat, the planes of the arc-shaped notches are axially parallel with the knife handle,
The center of the front part of the tool bit is provided with a trepan boring which is cylindrical and has a diameter larger than that of an excircle blank of a workpiece, a workpiece can go deep into the trepan boring,
the end face of the cutter head at the front part of the cutter head is a plane, a first boring blade and a second boring blade are arranged on the plane close to an arc-shaped notch on the end face of the cutter head, the first boring blade and the second boring blade are symmetrically arranged, and the distance between the cutter points is the same as the cutting diameter of an excircle.
furthermore, slender cutting fluid passages are arranged in the guide rod and the cutter head, one end of each cutting fluid passage is positioned in the center of the end face of the tail end of the guide rod and communicated with a cutting fluid pipeline on a main shaft of the machining center, and the other end of each cutting fluid passage penetrates through the center of the trepanning of the cutter head.
Further, a screw fastening surface is arranged on the tool handle, the screw fastening surface is a slender plane, and a bolt penetrates through the main shaft connecting part and is fixed on the screw fastening surface.
further, in order to improve the machining precision, the first boring blade, the second boring blade and the chamfering blade are rhombic blades, and the outer sides of the first boring blade and the second boring blade exceed the end face of the cutter head and are parallel to the end face of the cutter head.
Furthermore, the first boring blade, the second boring blade and the chamfering blade are detachably mounted on the cutter head through M5 nuts, cutting tool tips of the first boring blade and the second boring blade are fillets, and cutting edges of the chamfering blade and the guide rod are in 45-degree angles.
Further, the first boring blade, the second boring blade and the chamfering blade are CCMT120408 in type.
Further, in order to improve the strength of the cutter and prolong the service life, the guide rod and the cutter head are subjected to quenching and tempering and nitriding.
Further, the distance between the two transverse planes is 60% to 75% of the diameter of the cutting head.
The utility model has the advantages that:
1. the utility model discloses can once accomplish the excircle boring and the chamfer of machined part, the precision is higher.
2. The excircle of the machined part is cut by adopting two symmetrical boring blades, so that the service life is longer, and the deformation caused by uneven stress of the tool bit is avoided;
3. A cutting fluid passage is communicated between the tool handle and the tool bit, and scraps of a machined part can be washed from the inside;
4. The screw fastening surface is arranged on the cutter handle, so that the guide rod is more stably clamped;
5. Unnecessary positions on the cutter head are lightened through the transverse plane, and energy consumption is less.
Drawings
Fig. 1 is a schematic view of a workpiece to be solved by the present invention;
FIG. 2 shows a high-efficiency sleeve boring tool bar capable of chamfering before the company;
Fig. 3 is a front view of the chamfering efficient sleeve boring bar of the present invention;
FIG. 4 is a left side view of the flange positioning plate assembled with the automotive coupling axle shaft.
In the figure: the boring tool comprises an arc-shaped notch 1, a tool bit 2, a first boring blade 3, a tool bit end face 4, a tool handle 5, a trepanning 6, a workpiece excircle 7, a workpiece chamfer 8, a second boring blade 9, a workpiece 10, a screw fastening surface 11, a cutting fluid passage 12, a transverse plane 13 and a chamfer blade 14.
Detailed Description
The following detailed description of the present invention will be made in conjunction with the accompanying drawings and specific embodiments.
as shown in fig. 3 and 4, the high-efficiency sleeve type boring cutter bar capable of chamfering comprises a cutter handle 5, a cutter head 2, an arc notch 1, a second boring cutter blade 9, a chamfering blade 14 and a cutting fluid passage 12,
The front end of the knife handle 5 is provided with a knife head 2, the knife head 2 is a cylinder, two symmetrical transverse planes 13 are arranged in parallel with the knife head 2, two arc-shaped notches 1 are arranged on the knife head 2, each arc-shaped notch 1 comprises a plane provided with a blade mounting seat, the plane of each arc-shaped notch 1 is axially parallel to the knife handle 5,
A trepan boring 6 is arranged in the center of the front part of the tool bit 2, the trepan boring 6 is cylindrical, the diameter of the trepan boring 6 is larger than that of a work piece excircle 7 blank, a work piece 10 can penetrate into the trepan boring 6,
The front end face 4 of the tool bit 2 is a plane, a first boring blade 3 and a second boring blade 9 are arranged on the plane close to the arc notch 1 on the end face 4 of the tool bit, the first boring blade 3 and the second boring blade 9 are symmetrically arranged, and the distance between the tool tip and the excircle cutting diameter is the same.
In practical application, the guide rod and the cutter head 2 are internally provided with a slender cutting fluid passage 12, one end of the cutting fluid passage 12 is positioned in the center of the end face of the tail end of the guide rod and is communicated with a cutting fluid pipeline on a main shaft of a machining center, and the other end of the cutting fluid passage 12 penetrates through the center of the trepanning 6 of the cutter head 2.
In practical application, a screw fastening surface 11 is arranged on the tool holder 5, the screw fastening surface 11 is a slender plane, and a bolt penetrates through the main shaft connecting part and is fixed on the screw fastening surface 11.
In practical application, in order to improve the machining accuracy, the first boring blade 3, the second boring blade 9 and the chamfering blade 14 are rhombic blades, and the outer sides of the first boring blade 3 and the second boring blade 9 extend beyond the tool bit end face 4 and are parallel to the tool bit end face 4.
in practical application, the first boring blade piece 3, the second boring blade piece 9 and the chamfering blade piece 14 are detachably mounted on the cutter head 2 through M5 nuts, the cutting tool tips of the first boring blade piece 3 and the second boring blade piece 9 are rounded, and the cutting edge of the chamfering blade piece 14 forms an angle of 45 degrees with the guide rod axis.
In practical application, the first boring blade 3, the second boring blade 9 and the chamfering blade 14 are of the type CCMT 120408.
in practical application, in order to improve the strength of the cutter and prolong the service life, the guide rod and the cutter head 2 are subjected to quenching and tempering and nitriding.
In practice, the distance between the two transverse planes 13 is 60% to 75% of the diameter of the cutting head 2.
In conclusion, the utility model can complete the outer circle boring and chamfering of the machined part at one time, the tool bit is stressed evenly, and the service life is long; the scrap of the workpiece can be washed from the inside, and the precision is higher.
the foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the present invention is to provide a person skilled in the art with the ability to understand the contents of the present invention and implement the same, and not to limit the scope of the present invention.
Claims (8)
1. The utility model provides a but high-efficient shell type boring cutter pole of chamfer, includes handle of a knife (5), tool bit (2), arc breach (1), its characterized in that: also comprises a second boring blade (9), a chamfering blade (14) and a cutting fluid passage (12),
The front end of the knife handle (5) is provided with a knife head (2), the knife head (2) is a cylinder, two symmetrical transverse planes (13) are arranged in parallel with the knife head (2), two arc-shaped notches (1) are arranged on the knife head (2), the arc-shaped notches (1) comprise planes provided with blade mounting seats, the planes of the arc-shaped notches (1) are axially parallel to the knife handle (5),
a trepanning (6) is arranged at the center of the front part of the tool bit (2), the trepanning (6) is cylindrical, the diameter of the trepanning (6) is larger than that of a work piece excircle (7) blank, a work piece (10) can go deep into the trepanning (6),
the front end face (4) of the cutter head (2) is a plane and close to the plane of the arc-shaped notch (1) at the end face (4) of the cutter head, a first boring blade (3) and a second boring blade (9) are symmetrically arranged, and the distance between the cutter points is the same as the cutting diameter of an excircle.
2. The efficient sleeve type boring cutter bar capable of chamfering according to claim 1, characterized in that: slender cutting fluid passages (12) are arranged in the guide rod and the cutter head (2), one end of each cutting fluid passage (12) is located in the center of the end face of the tail end of the guide rod and communicated with a cutting fluid pipeline on a main shaft of the machining center, and the other end of each cutting fluid passage is communicated with the center of a sleeve hole (6) of the cutter head (2).
3. the efficient sleeve type boring cutter bar capable of chamfering according to claim 2, characterized in that: the screwdriver handle (5) is provided with a screw fastening surface (11), the screw fastening surface (11) is a long and thin plane, and a bolt penetrates through a main shaft connecting part and is fixed on the screw fastening surface (11).
4. The efficient sleeve type boring cutter bar capable of chamfering according to claim 3, characterized in that: in order to improve the machining precision, the first boring blade (3), the second boring blade (9) and the chamfering blade (14) are rhombic blades, and the outer sides of the first boring blade (3) and the second boring blade (9) exceed the cutter head end face (4) and are parallel to the cutter head end face (4).
5. the efficient sleeve type boring cutter bar capable of chamfering according to claim 4, characterized in that: first boring blade (3), second boring blade (9), chamfer blade (14) pass through M5 nut detachably and install on tool bit (2), the cutting knife tip of first boring blade (3), second boring blade (9) is the fillet, the cutting edge of chamfer blade (14) with the guide bar axis is 45 degrees.
6. The efficient sleeve type boring cutter bar capable of chamfering according to claim 5, characterized in that: the first boring blade (3), the second boring blade (9) and the chamfering blade (14) are CCMT120408 in type.
7. The efficient sleeve type boring cutter bar capable of chamfering according to claim 6, characterized in that: in order to improve the strength of the cutter and prolong the service life, the guide rod and the cutter head (2) are subjected to quenching and tempering and nitriding.
8. The efficient sleeve type boring cutter bar capable of chamfering according to any one of claims 1 to 7, wherein: the distance between the two transverse planes (13) is 60% -75% of the diameter of the cutter head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395535.1U CN209754045U (en) | 2019-03-27 | 2019-03-27 | Chamfering efficient sleeve type boring cutter bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920395535.1U CN209754045U (en) | 2019-03-27 | 2019-03-27 | Chamfering efficient sleeve type boring cutter bar |
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| Publication Number | Publication Date |
|---|---|
| CN209754045U true CN209754045U (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920395535.1U Active CN209754045U (en) | 2019-03-27 | 2019-03-27 | Chamfering efficient sleeve type boring cutter bar |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951784A (en) * | 2022-07-29 | 2022-08-30 | 浙江辉旺机械科技股份有限公司 | Major-diameter side wall groove forming cutter for aluminum die castings and machining process |
-
2019
- 2019-03-27 CN CN201920395535.1U patent/CN209754045U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114951784A (en) * | 2022-07-29 | 2022-08-30 | 浙江辉旺机械科技股份有限公司 | Major-diameter side wall groove forming cutter for aluminum die castings and machining process |
| CN114951784B (en) * | 2022-07-29 | 2022-12-02 | 浙江辉旺机械科技股份有限公司 | Major-diameter side wall groove forming cutter for aluminum die castings and machining process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A chamferable high-efficiency sleeve boring bar Effective date of registration: 20210824 Granted publication date: 20191210 Pledgee: Postal Savings Bank of China Limited Yancheng branch Pledgor: YANCHENG JINGQI CUTTER Co.,Ltd. Registration number: Y2021320000193 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220927 Granted publication date: 20191210 Pledgee: Postal Savings Bank of China Limited Yancheng branch Pledgor: YANCHENG JINGQI CUTTER Co.,Ltd. Registration number: Y2021320000193 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |