CN203470995U - Drilling and broaching integrated polycrystalline diamond drill bit - Google Patents
Drilling and broaching integrated polycrystalline diamond drill bit Download PDFInfo
- Publication number
- CN203470995U CN203470995U CN201320471626.1U CN201320471626U CN203470995U CN 203470995 U CN203470995 U CN 203470995U CN 201320471626 U CN201320471626 U CN 201320471626U CN 203470995 U CN203470995 U CN 203470995U
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- drill bit
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- blade
- broaching
- drill
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Abstract
The utility model relates to a drilling and broaching integrated polycrystalline diamond drill bit which comprises a drill bit body, a diamond drill core and a broaching blade; the drill bit body is a hard alloy drill bit body; a central hole is formed in the head of the drill bit body; the diamond drill core is fixed in the central hole; a broaching cutter slot is formed in the middle of the drill bit body; the broaching blade is fixed in the broaching cutter slot; the broaching blade is a diamond blade. According to the utility model, the diamond drill core is welded in the central hole in the head of the hard alloy drill bit body, the diamond blade is welded in the cutter slot in the middle of the hard alloy drill bit body, so that the work of broaching, beveling and the like can be finished at the same time during drilling; after being abraded, the diamond drill core can be repaired by removing hard alloy around the central hole, and the diamond blade can be replaced, so that the service life of the drill bit can be ensured, the drilling efficiency of the drill bit can be improved, the purpose of recycling the hard alloy drill bit body can be realized, raw materials are saved, the processing cost is lowered, and meanwhile, the processing quality and the production efficiency are improved effectively.
Description
Technical field
The utility model belongs to machine tools technical field, is specifically related to a kind of boring reaming integral type polycrystalline diamond compact bit.
Background technology
At present, traditional diamond bit is the head welding diamond blade at carbide alloy drilling rod, and the general method that adopts the center of welding of this welding, the center of welding refers to, the point of a knife of diamond blade must pass through the center of boring bar head end face, only had the drill bit of center welding diamond blade could effectively utilize diamond blade point of a knife to realize the effect of boring core, there is following defect in this diamond bit: stressed concentrating in due to drilling process in actual drilling process, process velocity is fast, resistance is large, therefore diamond tool sector-meeting comes off because of not prison welding, cause drill bit to lose efficacy, service life is short, and can be because drilling processing discontinuity causes diamond bit tipping to be scrapped in drill bit is used.And diamond blade corner wear in drilling process is very fast, once after wearing and tearing or damage, unrepairable trimming, can only change diamond blade, diamond blade utilization rate is low, and waste is serious, and cost is high.
Summary of the invention
In sum, in order to overcome the deficiency of prior art problem, the utility model provides a kind of boring reaming integral type polycrystalline diamond compact bit, it is in the centre bore of carbide drill head, to weld diamond drill machine core, welding diamond blade in the cutter groove of carbide drill body middle part can complete the work such as reaming, chamfering in boring procedure simultaneously; After the wearing and tearing of diamond drill machine core, can repair diamond drill machine core by removing centre bore carbide alloy around, diamond blade is replaceable, thereby guarantee the service life of drill bit, improve drill bit drilling efficiency, realize recycling of carbide drill body, save raw material and cut down finished cost, effectively improving crudy and production efficiency simultaneously.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of boring reaming integral type polycrystalline diamond compact bit, wherein: comprise drill body, diamond drill machine core and reaming blade, described drill body is carbide drill body, the head of drill body is provided with centre bore, in centre bore, be fixed with diamond drill machine core, drill body middle part is provided with cornish bit groove, and reaming blade is fixed in cornish bit groove, and described reaming blade is diamond blade.
Further, be provided with cold hole in two in described drill body, cold hole is symmetrically distributed in the upper and lower both sides of drill body axis in two.
Further, on described drill body, be provided with two symmetrical chip areas.
Further, the spiral angle α of described drill body head is 110 °～125 °.
The beneficial effects of the utility model are:
1, the utility model is in the centre bore of carbide drill head, to weld diamond drill machine core, drill bit head spiral angle is 110 °～125 °, can be after the wearing and tearing of diamond drill machine core, by removing centre bore carbide alloy around, reach unlimited reparation diamond drill machine core, effectively improve the service life of drill bit, realize recycling of drill body, save raw material and cut down finished cost, effectively improve crudy and production efficiency simultaneously.
2, the utility model welds diamond blade in the cutter groove of carbide drill body middle part, can in boring procedure, complete the work such as reaming, chamfering simultaneously; Avoid changing cutter, improve the precision in hole, cut down finished cost.
3, the utility model arranges symmetrical interior cold hole in drill body, runs through body, plays reduction processing temperature, avoids the effect of diamond high temperature qualitative change.
4, symmetrical two chip areas are set on drill body of the present utility model, chip area head is dark, and afterbody is shallow, plays chip removal effect, avoids Integrated Chip to scratch finished surface
5, the utility model is simple in structure, easy to use, can effectively guarantee the service life of drill bit, improve drill bit drilling efficiency, realize recycling of carbide drill body, save raw material and cut down finished cost, effectively improving crudy and production efficiency simultaneously.
accompanying drawing explanation:
Fig. 1 is a kind of structural representation of the present utility model.
the specific embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of boring reaming integral type polycrystalline diamond compact bit,: comprise drill body 1, diamond drill machine core 2 and reaming blade 3, described drill body 1 is carbide drill body 1, in drill body 1, be provided with in two cold hole 4 in 4, two, cold hole and be symmetrically distributed in the drill body 1 upper and lower both sides of axis; The spiral angle α of drill body 1 head is 120 °; On drill body 1, be provided with two symmetrical chip areas 5; The head of drill body 1 is provided with centre bore, is fixed with diamond drill machine core 2 in centre bore, and drill body 1 middle part is provided with cornish bit groove, and reaming blade 3 is fixed in cornish bit groove, and described reaming blade 3 is diamond blade.
?during use, the utility model is connected with rig, rig drives the utility model rotation, workpiece to be processed is carried out to bore operation, the diamond drill machine core 2 of the utility model head carries out bore operation, and reaming blade 3 of the present utility model carries out reaming or chamfering operation, has symmetrical interior cold hole 4 in drill body 1, reduce processing temperature, avoid the effect of diamond high temperature qualitative change; Symmetrical chip area 5 chip removals, and drill body 1 afterbody is that staight shank connects, convenient and swift.
Be noted that, above-described embodiment is to the explanation of technical solutions of the utility model and unrestricted, other modification that is equal to replacement or makes according to prior art of affiliated technical field those of ordinary skill, as long as do not exceed thinking and the scope of technical solutions of the utility model, within all should being included in the desired interest field of the utility model.
Claims (4)
1. a boring reaming integral type polycrystalline diamond compact bit, it is characterized in that: comprise drill body (1), diamond drill machine core (2) and reaming blade (3), described drill body (1) is carbide drill body (1), the head of drill body (1) is provided with centre bore, in centre bore, be fixed with diamond drill machine core (2), the middle part of drill body (1) is provided with cornish bit groove, and reaming blade (3) is fixed in cornish bit groove, and described reaming blade (3) is diamond blade.
2. boring reaming integral type polycrystalline diamond compact bit according to claim 1, is characterized in that: in described drill body (1), be provided with cold hole (4) in two, cold hole (4) is symmetrically distributed in the upper and lower both sides of drill body (1) axis in two.
3. boring reaming integral type polycrystalline diamond compact bit according to claim 1, is characterized in that: on described drill body (1), be provided with symmetrical two chip areas (5).
4. boring reaming integral type polycrystalline diamond compact bit according to claim 1, is characterized in that: the spiral angle α of described drill body (1) head is 110 °～125 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471626.1U CN203470995U (en) | 2013-08-05 | 2013-08-05 | Drilling and broaching integrated polycrystalline diamond drill bit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471626.1U CN203470995U (en) | 2013-08-05 | 2013-08-05 | Drilling and broaching integrated polycrystalline diamond drill bit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203470995U true CN203470995U (en) | 2014-03-12 |
Family
ID=50219405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320471626.1U Expired - Fee Related CN203470995U (en) | 2013-08-05 | 2013-08-05 | Drilling and broaching integrated polycrystalline diamond drill bit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203470995U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279418A (en) * | 2014-09-15 | 2015-01-14 | 昆山长鹰硬质合金有限公司 | Hard alloy bar |
| CN107916894A (en) * | 2017-12-06 | 2018-04-17 | 郑州神利达钻采设备有限公司 | A kind of diamond bit and its application method based on sandwich construction |
| CN109877551A (en) * | 2019-03-20 | 2019-06-14 | 苏州山德精密工具有限公司 | PCD table rank rose reamer processing technology |
| CN114535639A (en) * | 2022-03-22 | 2022-05-27 | 贵州贵钢钎具制造有限责任公司 | Drilling method for 90-machine drill bit shank |
-
2013
- 2013-08-05 CN CN201320471626.1U patent/CN203470995U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279418A (en) * | 2014-09-15 | 2015-01-14 | 昆山长鹰硬质合金有限公司 | Hard alloy bar |
| CN107916894A (en) * | 2017-12-06 | 2018-04-17 | 郑州神利达钻采设备有限公司 | A kind of diamond bit and its application method based on sandwich construction |
| CN109877551A (en) * | 2019-03-20 | 2019-06-14 | 苏州山德精密工具有限公司 | PCD table rank rose reamer processing technology |
| CN114535639A (en) * | 2022-03-22 | 2022-05-27 | 贵州贵钢钎具制造有限责任公司 | Drilling method for 90-machine drill bit shank |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20180805 |