CN219746431U - Step Kong Jianchi bores - Google Patents
Step Kong Jianchi bores Download PDFInfo
- Publication number
- CN219746431U CN219746431U CN202321019303.9U CN202321019303U CN219746431U CN 219746431 U CN219746431 U CN 219746431U CN 202321019303 U CN202321019303 U CN 202321019303U CN 219746431 U CN219746431 U CN 219746431U
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- rod body
- body section
- cutter
- drill
- jianchi
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- 238000005553 drilling Methods 0.000 claims abstract description 22
- 238000003754 machining Methods 0.000 abstract description 10
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model provides a step Kong Jianchi drill, which belongs to the technical field of machining tools and comprises the following components: the top of the sword-tooth drill bit is provided with a first cutter surface and a second cutter surface in a corner shape; the cutter bar comprises a first rod body section for drilling small holes and a second rod body section for drilling large holes, one end of the first rod body section is detachably connected with the sword-tooth drill bit, the other end of the first rod body section is connected with the second rod body section, and the outer diameter of the second rod body section is larger than that of the first rod body section; and the cutter body is used for cutting the large hole and is connected with the second rod body section. The utility model has the beneficial effects that: the cutter bar of the step Kong Jianchi drill is divided into a first rod body section for drilling a small hole and a second rod body section for drilling a large hole, and can be used for machining a step hole or a countersunk hole at one time on the premise of ensuring machining efficiency.
Description
Technical Field
The utility model belongs to the technical field of machining tools, and particularly relates to a step Kong Jianchi drill.
Background
A drill bit is a very popular tool that can be used on a drill or a pistol drill.
For example, chinese patent application No. 202122405445.6 discloses a sword tooth drill bit and sword tooth drill, which comprises a body, the body includes top and lateral part, be the corner on the top and be provided with at least one set of back knife face and at least one set of first knife face, include the side on the lateral part, wherein, be provided with many cutting edges on the lateral part, and a part cutting edge is located the side with the intersection department of first knife face, another part cutting edge is located on the side, it is through being provided with many cutting edges that distribute along the drill bit drilling direction on the lateral part for there are many cutting edges simultaneously to support the processing hole inner wall when the drill bit is drilled, greatly increased holding power, can be used for supporting the radial force from the drill point, reduced the processing vibrations, improved the stability and the fail safe nature of drill bit greatly, the use of many cutting edges still can improve pore wall roughness precision, drilling stability, improved machining precision and machining efficiency greatly.
The drill in the prior art can greatly improve the processing efficiency, but can only process straight holes, but cannot process stepped holes or countersunk holes. Therefore, there is a great room for improvement in view of the above-mentioned problems
Disclosure of Invention
The utility model aims to solve the problems in the prior art and provides a step Kong Jianchi drill capable of machining a step hole.
The aim of the utility model can be achieved by the following technical scheme:
the top of the sword-tooth drill bit is provided with a first cutter surface and a second cutter surface in a corner shape;
the cutter bar comprises a first rod body section for drilling small holes and a second rod body section for drilling large holes, one end of the first rod body section is detachably connected with the sword-tooth drill bit, the other end of the first rod body section is connected with the second rod body section, and the outer diameter of the second rod body section is larger than that of the first rod body section;
and the cutter body is used for cutting the large hole and is connected with the second rod body section.
Preferably, the second rod body section is provided with a mounting groove for mounting the cutter body, and the cutter body is embedded in the mounting groove.
Preferably, the outer wall surface of the sword tooth drill bit is provided with a first chip guiding groove, the outer wall surface of the first rod body section is provided with a second chip guiding groove, the outer wall surface of the second rod body section is provided with a third chip guiding groove, the second chip guiding groove is communicated with the first chip guiding groove, and the third chip guiding groove is communicated with the second chip guiding groove.
Preferably, the cutting surface of the cutter body is positioned in the third chip guiding groove, and chips generated by cutting of the cutter body are discharged along the third chip guiding groove.
Preferably, the end part of the sword tooth drill bit is provided with a plurality of first tooth parts, the end part of the first rod body section of the cutter rod is provided with a plurality of second tooth parts, and the first tooth parts are meshed with the second tooth parts.
Preferably, the cutter bar is further provided with a chamfering part, and the chamfering part is arranged at the joint of the first rod body section and the second rod body section.
Compared with the prior art, the utility model has the beneficial effects that:
1. the cutter bar of the step Kong Jianchi drill is divided into a first rod body section for drilling a small hole and a second rod body section for drilling a large hole, and can be used for machining a step hole or a countersunk hole at one time on the premise of ensuring machining efficiency.
2. The cutter body is embedded in the mounting groove, so that the strength of the cutter body can be guaranteed, and the cutter head is prevented from being broken during drilling.
3. The piece that produces during this drill bit processing can be through first guide bits groove, second guide bits groove and third guide bits groove in proper order, finally follows the third and lead bits groove discharge, and this kind of structure can guarantee that the piece is discharged fast, can not damage the drill bit because of the jam.
4. When the cutter body positioned on the second rod body section cuts a large hole, generated scraps can be discharged along the third scraps guiding groove by the vertical horse, so that the smoothness of processing is ensured, and meanwhile, the drill bit can be prevented from being damaged when the large hole is drilled.
5. The sword tooth drill bit is connected with the cutter arbor through the mode of gear engagement, and the joint strength between the sword tooth drill bit and the cutter arbor can be increased to the connected mode, can guarantee when processing that sword tooth drill bit can not take place to drop.
6. The cutter arbor still is provided with chamfer portion specially to chamfer portion is located the junction of first body of rod section and second body of rod section, and like this after first body of rod section processing, chamfer portion participation processing just can successfully process out the chamfer, that is to say, this step Kong Jianchi bores disposable drilling just can process out the chamfer, and is very convenient.
Drawings
Fig. 1 is an exploded view of the step Kong Jianchi drill of the present utility model.
Fig. 2 is an exploded view of another view of the step Kong Jianchi drill of the present utility model.
Fig. 3 is an isometric view of the step Kong Jianchi drill of the present utility model.
In the figure, 100, a sword tooth drill bit; 110. a first blade surface; 120. a second blade surface; 130. a first tooth portion; 140. a first chip guide groove; 200. a cutter bar; 210. a first rod segment; 211. a second tooth portion; 212. a second chip guide groove; 220. a second rod segment; 221. a mounting groove; 222. a third chip guide groove; 230. a chamfering part; 300. a cutter body.
Detailed Description
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1-3, a step Kong Jianchi drill, comprising: the present utility model relates to a sword-tooth drill 100, a cutter bar 200 and a cutter body 300, wherein the sword-tooth drill 100 is used for centering and drilling, and the cutter bar 200 is used for connecting with external power equipment and the cutter body 300 is used for drilling large holes because the sword-tooth drill 100 is the prior art and will not be described in detail.
Specifically, the top of the sword-tooth drill 100 is provided with a first blade 110 and a second blade 120 in a corner shape; the cutter bar 200 comprises a first bar section 210 for drilling small holes and a second bar section 220 for drilling large holes, one end of the first bar section 210 is detachably connected with the sword-tooth drill bit 100, the other end of the first bar section 210 is connected with the second bar section 220, and the outer diameter of the second bar section 220 is larger than that of the first bar section 210; a cutter body 300 for cutting a large hole is coupled to the second rod segment 220.
It should be noted that, the large hole refers to a hole with a large diameter in the countersunk hole or the stepped hole, the small hole refers to a hole with a small diameter in the countersunk hole or the stepped hole, when the drill bit is actually drilled, the outer diameters of the sword-tooth drill bit 100 and the first rod section 210 are equal, the sword-tooth drill bit 100 and the first rod section 210 drill the hole with the small diameter first, then continue to drill, at this time, the cutter body 300 on the second rod section 220 starts to work so as to enlarge the small hole drilled before, and finally the small hole is processed into the stepped hole or the countersunk hole.
It should be noted that the tool bar 200 of the present step Kong Jianchi drill is divided into a first bar section 210 for drilling a small hole and a second bar section 220 for drilling a large hole, and can also process a step hole or a countersunk hole at one time on the premise of ensuring the processing efficiency.
As shown in fig. 1 to 3, the second rod section 220 is provided with a mounting groove 221 for mounting the cutter body 300, and the cutter body 300 is embedded in the mounting groove 221.
It should be noted that, the cutter body 300 is embedded in the mounting groove 221, and such a structure can ensure the strength of the cutter body 300, and prevent the cutter head from breaking during the drilling process.
As shown in fig. 1 to 3, the outer wall surface of the sword-tooth drill 100 is provided with a first chip guiding groove 140, the outer wall surface of the first rod section 210 is provided with a second chip guiding groove 212, the outer wall surface of the second rod section 220 is provided with a third chip guiding groove 222, the second chip guiding groove 212 is communicated with the first chip guiding groove 140, and the third chip guiding groove 222 is communicated with the second chip guiding groove 212.
It should be noted that, the chips generated during the processing of the drill bit can pass through the first chip guiding groove 140, the second chip guiding groove 212 and the third chip guiding groove 222 in sequence, and finally be discharged from the third chip guiding groove 222, so that the chips can be ensured to be discharged rapidly, and the drill bit is not damaged due to blockage.
Further, the cutting surface of the cutter body 300 is located at the third chip guide groove 222, and chips generated by cutting of the cutter body 300 are discharged along the third chip guide groove 222.
It should be noted that, when the cutter body 300 located in the second rod body section 220 cuts the large hole, the generated scraps can be discharged along the third scraps guiding groove 222 by the vertical horse, so that the smoothness of processing is ensured, and meanwhile, the drill bit can be prevented from being damaged when the large hole is drilled.
As shown in fig. 1-3, the end of the rapier bit 100 is provided with a plurality of first teeth 130, the end of the first shank segment 210 of the shank 200 is provided with a plurality of second teeth 211, and the first teeth 130 are engaged with the second teeth 211.
It should be noted that, the rapier bit 100 and the cutter bar 200 are connected in a similar way to gear engagement, and the connection strength of the rapier bit 100 and the cutter bar can be increased by the connection mode, so that the rapier bit 100 can be ensured not to fall off during processing.
As shown in fig. 1-3, the cutter bar 200 is further provided with a chamfer 230, and the chamfer 230 is disposed at the connection between the first rod segment 210 and the second rod segment 220.
It should be noted that, the cutter bar 200 is further specifically provided with a chamfer portion 230, and the chamfer portion 230 is located at the connection position between the first rod segment 210 and the second rod segment 220, so that after the first rod segment 210 is machined, the chamfer portion 230 participates in machining to successfully machine the chamfer, that is, the chamfer can be machined by drilling the step Kong Jianchi at one time, which is very convenient.
Furthermore, descriptions such as those referred to herein as "first," "second," "a," and the like are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or an implicit indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.
Claims (6)
1. A step Kong Jianchi drill, comprising a sword-tooth drill bit, the top of which is provided with a first blade face and a second blade face in a corner shape, characterized in that the drill bit further comprises:
the cutter bar comprises a first rod body section for drilling small holes and a second rod body section for drilling large holes, one end of the first rod body section is detachably connected with the sword-tooth drill bit, the other end of the first rod body section is connected with the second rod body section, and the outer diameter of the second rod body section is larger than that of the first rod body section;
and the cutter body is used for cutting the large hole and is connected with the second rod body section.
2. The step Kong Jianchi drill of claim 1, further comprising: the second rod body section is provided with a mounting groove for mounting the cutter body, and the cutter body is embedded in the mounting groove.
3. The step Kong Jianchi drill of claim 2, further comprising: the outer wall surface of the sword tooth drill bit is provided with a first chip guiding groove, the outer wall surface of the first rod body section is provided with a second chip guiding groove, the outer wall surface of the second rod body section is provided with a third chip guiding groove, the second chip guiding groove is communicated with the first chip guiding groove, and the third chip guiding groove is communicated with the second chip guiding groove.
4. A step Kong Jianchi drill as defined in claim 3, further comprising: the cutting face of the cutter body is positioned in the third chip guiding groove, and chips generated by cutting of the cutter body are discharged along the third chip guiding groove.
5. The step Kong Jianchi drill of claim 1, further comprising: the end part of the sword tooth drill bit is provided with a plurality of first tooth parts, the end part of the first rod body section of the cutter rod is provided with a plurality of second tooth parts, and the first tooth parts are meshed with the second tooth parts.
6. The step Kong Jianchi drill of claim 1, further comprising: the cutter arbor still is provided with chamfer portion, chamfer portion set up in the junction of first body of rod section with the second body of rod section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321019303.9U CN219746431U (en) | 2023-04-28 | 2023-04-28 | Step Kong Jianchi bores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321019303.9U CN219746431U (en) | 2023-04-28 | 2023-04-28 | Step Kong Jianchi bores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219746431U true CN219746431U (en) | 2023-09-26 |
Family
ID=88092634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321019303.9U Active CN219746431U (en) | 2023-04-28 | 2023-04-28 | Step Kong Jianchi bores |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219746431U (en) |
-
2023
- 2023-04-28 CN CN202321019303.9U patent/CN219746431U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |