CN211680051U - Outer circle stepped boring cutter for large-scale steel structure - Google Patents
Outer circle stepped boring cutter for large-scale steel structure Download PDFInfo
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- CN211680051U CN211680051U CN202020182049.4U CN202020182049U CN211680051U CN 211680051 U CN211680051 U CN 211680051U CN 202020182049 U CN202020182049 U CN 202020182049U CN 211680051 U CN211680051 U CN 211680051U
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Abstract
The utility model discloses an excircle ladder boring cutter for large steel structure, which comprises a handle, cutter rests arranged on the two ends of the handle and cutter bodies arranged on the cutter rests; a dovetail groove is formed in the knife handle; the tool rest comprises a tool rest base body, a first boss arranged at the bottom of the tool rest base body, a second boss arranged on one side of the top of the tool rest base body and a screw hole groove on the other side; the first boss is nested in the dovetail groove; the cutter body is arranged on the second boss and comprises a cutter body base body and a cutter head arranged on the cutter body base body; the tool bit is wedge-shaped. The utility model discloses an, adjustment work piece excircle machining dimension that can be nimble can increase the joint strength of cutter again, increases the processingquantity, feeds the volume, and the accessible improves the rotational speed and promotes machining efficiency.
Description
Technical Field
The utility model relates to a cutter technical field especially relates to an excircle ladder boring cutter for large steel construction, the boring processing of mainly used steel construction spare excircle.
Background
When the excircle of the steel structural member is machined, a common cutter handle and a cutter body welded on the common cutter handle are traditionally utilized for machining, the machining method has obvious defects, the common cutter body is directly welded on the cutter handle, the connection strength is low, the tool consumption and the feed amount are small, the rotating speed is low, the machining efficiency is low, the cutters are quickly worn, and each group of cutters can only machine products with fixed excircle sizes.
In view of the above circumstances, need design a novel steel construction excircle processing cutter, can satisfy the processing demand of different equipment, not unidimensional work piece, solve the problem that traditional cutter machining efficiency is low, the cutter wearing and tearing are opened simultaneously.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims at providing a but multi-functional high efficiency excircle ladder boring cutter of adjustable distance, adjustment work piece excircle machining dimension that can be nimble can increase the joint strength of cutter again, increases the processingquantity, feeds the volume, and the accessible improves the rotational speed and promotes machining efficiency.
In order to achieve the above object, the utility model adopts the following technical scheme:
an excircle stepped boring cutter for a large-scale steel structure comprises a cutter handle, cutter rests arranged at two ends of the cutter handle and cutter bodies arranged on the cutter rests;
a dovetail groove is formed in the cutter handle;
the tool rest comprises a tool rest base body, a first boss arranged at the bottom of the tool rest base body, a second boss arranged on one side of the top of the tool rest base body and a bolt groove on the other side; the first boss is nested on the dovetail groove;
the cutter body is arranged on the second boss and comprises a cutter body base body and a cutter head arranged on the cutter body base body; the tool bit is wedge-shaped.
Preferably, the angle of the dovetail groove is 37 ° ± 2 °.
Preferably, the corners of the dovetail groove are rounded, and the radius of the rounded corner is 4 +/-1 mm.
Preferably, a center hole is formed in the center of the dovetail groove, and adjusting bolt holes are symmetrically formed in two sides of the center hole.
Preferably, there are 8 adjustment bolt holes.
Preferably, the tool holder is fixed to the tool shank by an adjusting bolt.
Preferably, the first boss is a trapezoidal table.
Preferably, one side of the second boss, which is close to the bolt groove, is provided with a groove.
Preferably, the cutter body is fixed in the groove by a compression bolt.
Preferably, the cutter head is integrally formed with the cutter body base.
The utility model has the advantages that:
1. the outer circle stepped boring tool of the utility model has the advantages that the tool body is arranged on the groove of the tool rest and fixed by the compression bolt, so that the connection strength of the tool is increased, the processing amount and the feeding amount can be increased, and the processing efficiency can be improved by improving the rotating speed;
2. the excircle ladder boring tool of the utility model adjusts the positions of the tool holder and the tool holder through the dovetail groove and the adjusting bolt between the tool holder and the tool holder, and can flexibly adjust the excircle size of the tool;
3. the utility model discloses an excircle ladder boring cutter realizes the function of double knives processing (ladder processing) through the position of adjusting two knife rests and the extension length (big one little, tandem) of cutter body on the knife rest.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic structural view of an outer circle stepped boring tool in an embodiment;
FIG. 2 is an exploded view of the outer circle stepped boring tool in the embodiment;
FIG. 3 is a schematic view of the structure of the knife handle in the embodiment;
FIG. 4 is a schematic view of the dovetail groove shape of the tool shank in the embodiment;
FIG. 5 is a schematic view of the structure of the tool holder according to the embodiment;
fig. 6 is a schematic structural view of the cutter body in the embodiment.
Detailed Description
The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way.
Examples
As shown in fig. 1 to 6, the outer circle stepped boring tool for a large steel structure provided in this embodiment includes a tool shank 3, tool rests 2 disposed at two ends of the tool shank 3, and a tool body 1 disposed on the tool rests 2.
A dovetail groove 31 is formed above the cutter handle 3, the angle of the dovetail groove 31 is 37 degrees +/-2 degrees, the corners of the dovetail groove 31 are rounded, and the radius R of the rounded corner is 4 +/-1 mm; a central hole 33 is formed in the center of the dovetail groove 31 and can be fixed on other instruments through bolts; the two sides of the central hole 33 are symmetrically provided with adjusting threaded holes 32, and the number of the adjusting threaded holes 32 is 8 in total.
The tool rest 2 comprises a tool rest base body 21, a first boss 22 arranged at the bottom of the tool rest base body 21, a second boss 23 arranged at one end of the top of the tool rest base body 21 and a bolt groove 24 at the other side; the first boss 22 is a trapezoid boss and is embedded in the dovetail groove 31 of the tool shank 3; a groove 25 is formed in one side, close to the bolt groove 24, of the second boss 23, pressing threaded holes 26 are symmetrically formed in two sides of the second boss 23, and the number of the pressing threaded holes 26 in the second boss 23 is 4; the tool rest 2 is arranged on the tool holder 3 through an adjusting bolt of the bolt groove 24, and the second boss 23 is arranged on the outer side during installation; the distance between the tool holders 2 at the two ends of the tool shank 3 can be adjusted.
The cutter body 1 comprises a cutter body base body 11 and a cutter head 12 arranged on the cutter body base body 11, the cutter head 12 is in a wedge shape, and the cutter body base body 11 and the cutter head 12 are integrally formed; the cutter body 1 is arranged in the groove 25 of the second boss 23 and is fixed through a compression bolt, and the length of the cutter body 1 extending out of the cutter frame 2 can also be adjusted.
In the embodiment, the cutter body is arranged on the groove of the cutter frame and is fixed by the compression bolt, so that the connection strength of the cutter is increased, the processing amount and the feeding amount can be increased, and the processing efficiency can be improved by improving the rotating speed; the positions of the tool holder and the tool rest are adjusted through the dovetail groove and the adjusting bolt between the tool holder and the tool holder, so that the size of the excircle of the tool can be flexibly adjusted; the double-tool machining (step machining) function is realized by adjusting the positions of the two tool rests and the extension lengths (one large, one small, one in front of the other) of the tool bodies on the tool rests.
To sum up, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. The outer circle stepped boring tool for the large steel structure is characterized by comprising a tool shank, tool rests arranged on two ends of the tool shank and tool bodies arranged on the tool rests;
a dovetail groove is formed in the cutter handle;
the tool rest comprises a tool rest base body, a first boss arranged at the bottom of the tool rest base body, a second boss arranged on one side of the top of the tool rest base body and a bolt groove on the other side; the first boss is nested on the dovetail groove;
the cutter body is arranged on the second boss and comprises a cutter body base body and a cutter head arranged on the cutter body base body, and the cutter head is wedge-shaped.
2. The tool according to claim 1, wherein the dovetail slot has an angle of 37 ° ± 2 °.
3. The tool according to claim 2, wherein the corners of the dovetail slot are rounded with a radius of 4 ± 1 mm.
4. The tool according to claim 1, wherein a center hole is formed in the center of the dovetail groove, and adjusting bolt holes are symmetrically formed in two sides of the center hole.
5. The tool according to claim 4, wherein there are 8 adjustment bolt holes.
6. The tool according to claim 5, wherein the tool holder is secured to the shank by an adjustment bolt.
7. The tool according to claim 1, wherein the first boss is a trapezoidal shaped boss.
8. The tool of claim 1, wherein the second boss has a recess formed in a side thereof adjacent the bolt recess.
9. The tool of claim 8, wherein the tool body is secured within the recess by a compression bolt.
10. The tool of claim 1, wherein the insert is integrally formed with the body base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020182049.4U CN211680051U (en) | 2020-02-19 | 2020-02-19 | Outer circle stepped boring cutter for large-scale steel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020182049.4U CN211680051U (en) | 2020-02-19 | 2020-02-19 | Outer circle stepped boring cutter for large-scale steel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211680051U true CN211680051U (en) | 2020-10-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020182049.4U Active CN211680051U (en) | 2020-02-19 | 2020-02-19 | Outer circle stepped boring cutter for large-scale steel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211680051U (en) |
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2020
- 2020-02-19 CN CN202020182049.4U patent/CN211680051U/en active Active
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