CN202726129U - Circular hole chamfering drill bit of automobile mold - Google Patents
Circular hole chamfering drill bit of automobile mold Download PDFInfo
- Publication number
- CN202726129U CN202726129U CN 201220389841 CN201220389841U CN202726129U CN 202726129 U CN202726129 U CN 202726129U CN 201220389841 CN201220389841 CN 201220389841 CN 201220389841 U CN201220389841 U CN 201220389841U CN 202726129 U CN202726129 U CN 202726129U
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- Prior art keywords
- drill bit
- chamfering
- circular hole
- head
- drill
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- Expired - Fee Related
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- 238000005498 polishing Methods 0.000 claims abstract description 13
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 244000137852 Petrea volubilis Species 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Drilling Tools (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The utility model provides a circular hole chamfering drill bit of an automobile mold. A drill bit main body comprises a drill handle and a chamfering head, wherein the chamfering head is of a circular truncated shape, the drill handle is fixedly connected with the large-diameter end of the chamfering head, and the circular truncated side surface of the chamfering head is provided with a polishing tube. The outer surface of the polishing tube is a grinding surface or a cutting edge surface. The drill handle is of a cylindrical shape or a conical shape. The circular hole chamfering drill bit has beneficial effects that when the drill bit is matched with an electric tool or a manual tool to use, because of the circular truncated shape design of the chamfering head, the circular hole chamfering drill bit can be used for different apertures, so that the trouble for frequently replacing the drill bit can be reduced; in addition, due to adopting the polishing tube, the drill bit is convenient to replace after being abraded; and due to adopting two selection forms of the grinding surface and the cutting edge surface, so that the drill bit is convenient for meeting different chamfering requirements.
Description
Technical field
The utility model relates to boring bar tool, relates in particular to a kind of automobile die circular hole chmfer bit.
Background technology
The corner of automobile die and circular hole all need chamfering, and the circular hole chamfering of less mould adopts drilling machine usually, and because the most of volume of automobile die is larger, if with the drilling machine chamfering then carry inconvenience.Therefore often need carry out the chamfering operation by handheld tool at the scene, if but adopt the common drill bit chamfering not only will be according to different pore size frequent drill bit, troublesome poeration, and fillet surface is also undesirable.Especially partially boring is more easily appearred in some oblique side openings, affect product processing quality.
The utility model content
The utility model provides a kind of automobile die circular hole chmfer bit for the deficiencies in the prior art.Can be to the circular hole chamfering of automotive-type mould handled easily whenever and wherever possible.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: comprise drill body, it is characterized in that, described drill body comprises drillstock and chamfering head, described chamfering head is truncated cone-shaped, described drillstock is fixedly connected with the larger diameter end of described chamfering head, and the frustum cone side of described chamfering head is set with the polishing cylinder.
On the basis of technique scheme, the utility model can also be done following improvement.
Further, the outer surface of described polishing cylinder is frosting or blade face.
Further, described drillstock is cylindrical or conical.
The beneficial effects of the utility model are: when moving or hand-operated tools uses when drill bit distribution of the present utility model, because the design of the truncated cone-shaped of chamfering head can take into account different pore size and use, reduced the trouble of frequent bit change; Owing to adopting overcoat polishing cylinder, change after the convenient wearing and tearing in addition; Adopt frosting and two kinds of selection forms of blade face, made things convenient for the selection that requires for different chamferings.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is frosting chamfering barrel structure schematic diagram of the present utility model;
Fig. 3 is cutting edge surface chamfer barrel structure schematic diagram of the present utility model.
At Fig. 1 in Fig. 3,1, drillstock; 2, chamfering head; 3, polishing cylinder; 4, blade face; 5, frosting.
The specific embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described, institute gives an actual example and only is used for explaining the utility model, is not be used to limiting scope of the present utility model.
Arrive shown in Figure 3 such as Fig. 1, a kind of automobile die circular hole chmfer bit, comprise drill body, described drill body comprises drillstock 1 and chamfering 2, described chamfering 2 is truncated cone-shaped, the larger diameter end of described drillstock 1 and described chamfering 2 is fixedly connected with, and the frustum cone side of described chamfering 1 is set with polishing cylinder 3.The combination of chamfering head and polishing cylinder can be adopted interior external splines form suit, and easy disassembly is changed.
The outer surface of described polishing cylinder 3 is frosting 5 or blade face 4.Described frosting 5 can be one deck sand paper of pasting on polishing cylinder 3 surfaces.
Described drillstock 1 is cylindrical or conical.
Drill bit of the present utility model can directly cooperate electric hand drill, pneumatic tool or hand drill to use, especially to chamfering accurate positioning, the convenience of oblique side opening.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (3)
1. an automobile die circular hole chmfer bit comprises drill body, it is characterized in that, described drill body comprises drillstock and chamfering head, described chamfering head is truncated cone-shaped, and described drillstock is fixedly connected with the larger diameter end of described chamfering head, and the frustum cone side of described chamfering head is set with the polishing cylinder.
2. automobile die circular hole chmfer bit according to claim 1 is characterized in that, the outer surface of described polishing cylinder is frosting or blade face.
3. automobile die circular hole chmfer bit according to claim 1 and 2 is characterized in that, described drillstock is cylindrical or conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389841 CN202726129U (en) | 2012-08-01 | 2012-08-01 | Circular hole chamfering drill bit of automobile mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220389841 CN202726129U (en) | 2012-08-01 | 2012-08-01 | Circular hole chamfering drill bit of automobile mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202726129U true CN202726129U (en) | 2013-02-13 |
Family
ID=47651878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220389841 Expired - Fee Related CN202726129U (en) | 2012-08-01 | 2012-08-01 | Circular hole chamfering drill bit of automobile mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202726129U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108789021A (en) * | 2018-08-27 | 2018-11-13 | 苏州沃斯曼精密机械有限公司 | A kind of rubbing down part of inner hole of workpiece mirror finish |
| CN108942635A (en) * | 2018-08-27 | 2018-12-07 | 苏州沃斯曼精密机械有限公司 | A kind of inner hole of workpiece mirror processing method |
| CN109333279A (en) * | 2018-12-03 | 2019-02-15 | 江西洪都航空工业集团有限责任公司 | A kind of facing attachment |
| CN111451931A (en) * | 2020-05-18 | 2020-07-28 | 张馨元 | Hole machining chamfering grinder with guide pillar and grinding head structure |
-
2012
- 2012-08-01 CN CN 201220389841 patent/CN202726129U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108789021A (en) * | 2018-08-27 | 2018-11-13 | 苏州沃斯曼精密机械有限公司 | A kind of rubbing down part of inner hole of workpiece mirror finish |
| CN108942635A (en) * | 2018-08-27 | 2018-12-07 | 苏州沃斯曼精密机械有限公司 | A kind of inner hole of workpiece mirror processing method |
| CN109333279A (en) * | 2018-12-03 | 2019-02-15 | 江西洪都航空工业集团有限责任公司 | A kind of facing attachment |
| CN111451931A (en) * | 2020-05-18 | 2020-07-28 | 张馨元 | Hole machining chamfering grinder with guide pillar and grinding head structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20140801 |
|
| EXPY | Termination of patent right or utility model |