CN204843069U - Machine presss from both sides formula deep hole drill - Google Patents
Machine presss from both sides formula deep hole drill Download PDFInfo
- Publication number
- CN204843069U CN204843069U CN201520503918.8U CN201520503918U CN204843069U CN 204843069 U CN204843069 U CN 204843069U CN 201520503918 U CN201520503918 U CN 201520503918U CN 204843069 U CN204843069 U CN 204843069U
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- CN
- China
- Prior art keywords
- tubaeform
- cambered surface
- cutting
- chip
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a machine presss from both sides formula deep hole drill, including the cutting head and the cylinder body of rod, be equipped with the chip removal passageway in the body of rod, the chip removal passageway communicates with each other with the chip removal hole of the overhead setting of cutting, the chip removal hole includes both sides face mutually perpendicular's quadrant hole, the arc surface of the head in quadrant hole is the first tubaeform cambered surface of outside flaring, be connected with the tubaeform cambered surface of second between the cylindricality arc surface in quadrant hole and the first tubaeform cambered surface, be equipped with main guide block and vice guide block on cutting first outer wall, cut first front end and be equipped with two at least removable cutting edges, be equipped with the chip dividing groove on the cutting edge, the width of chip dividing groove is 1.3 -1.5mm. The utility model discloses the chip removal is smooth and easy, difficult stifled bits. Increase direction precision and rigidity, improve the stability of drill bit, reduce the consumption of uide bushing, and then improve the life of drill bit, the surface quality and the reduction in production cost of product.
Description
Technical field
The utility model relates to special steel Deep-Hole Drilling Technology field;
Particularly relate to a kind of clamping type deep hole drill head.
Background technology
In the hot extrusion subsidiary factory of steel tube factory of special steel company, the steel tube blank of pipe processing has a kind of is process special material containing the difficulty of nickelic, high molybdenum and rare metal.The intensity of this material is high, good toughness, drilling cuttings not easy fracture, chip removal difficulty, easily stifled cutter during boring.The deep hole boring ￠ 26.5*1000mm for this material is the work that steel tube factory often needs to carry out, prior art uses import clip type drill bit to complete the processing of the deep hole that the diameter of this material is 68mm, but import clip type drill bit is expensive, every price wants 930 yuans.￠ 26.5 hole was bored by certain special steel company output in 2012 is 920 tons, consumes 296, the import clip type drill bit of dimension, and can only produce 3.1 tons of steel billets for average every, loss per ton steel reaches 301.9 yuan/ton, thus the processing cost of steel tube blank is remained high.Through site inspection and analysis, we find, import clip type drill bit has following shortcoming in process:
1, drill bit is only suitable for the material of high-speed drilling energy chip breaking; During high-speed drilling because of stifled cutter fragile drill bit and drilling rod;
2, the connecting thread of drill bit and drilling rod is too short, and during boring, screw thread skids and damages drill bit and drilling rod;
3, guide pad length is partially short, and fairlead easily damages because of stressed concentrating, and affects the guiding accuracy in hole, easily damages drill bit because hole bias is overproof, shortens the service life of drill bit, and cause blank to be scrapped;
4, import clip type drill bit and annex too expensive, affect the decline of loss per ton steel, make steel tube blank processing cost remain high.
Utility model content
All deficiencies of prior art in view of the above, the technical problems to be solved in the utility model is to provide a kind of not fragile, chip removal is easy, loss per ton steel is low clamping type deep hole drill head, to overcome the above-mentioned defect of prior art.
For achieving the above object and other relevant objects, the utility model provides a kind of clamping type deep hole drill head, comprise cutting head and the cylinder body of rod, channel of chip removal is provided with in the body of rod, channel of chip removal communicates with the chip-removal hole that cutting head is arranged, described chip-removal hole comprises orthogonal quadrant hole, two sides, the arc surface of the head in described quadrant hole is the first tubaeform cambered surface of outside enlarging, is connected with the second tubaeform cambered surface between the cylindricality arc surface in described quadrant hole and the first tubaeform cambered surface; Cutting head outer wall is provided with main guide pad and secondary guide pad, and cutting-head forward end is provided with at least two removable cutting edges, and cutting edge is provided with chip dividing groove, and the width of described chip dividing groove is 1.3-1.5mm.
Preferably, the cylinder body of rod comprises the thread segment for being connected with drilling rod, and the length of described thread segment is 20mm.
Preferably, when drill bit and drilling rod assemble, cutting head rear end contacts with drilling rod.
Preferably, the length of described secondary guide pad and width are 20mm.
Preferably, the gradient of described first tubaeform cambered surface is 15 °-25 °, and the gradient of described second tubaeform cambered surface is 8 °-12 °.
Preferably, the gradient of described first tubaeform cambered surface is 20 °, and the gradient of described second tubaeform cambered surface is 10 °.
Preferably, described cutting head and the cylinder body of rod are wholely set.
By above technical scheme, the utility model has following technique effect compared to prior art: the utility model chip removal is smooth and easy, not easily stifled bits.Increase guiding accuracy and rigidity, improve the stability of drill bit, reduce the consumption of fairlead, and then improve the service life of drill bit, the surface quality of product and reduction production cost.
Accompanying drawing explanation
Fig. 1 is shown as structural representation of the present utility model;
Fig. 2 is shown as the side view of Fig. 1.
Element numbers illustrates:
1 main guide pad
2 secondary guide pads
3 cutting edges
4 chip-removal holes
Detailed description of the invention
By particular specific embodiment, embodiment of the present utility model is described below, person skilled in the art scholar the content disclosed by this description can understand other advantages of the present utility model and effect easily.
Refer to Fig. 1 to Fig. 2.Notice, structure, ratio, size etc. that this description institute accompanying drawings illustrates, content all only in order to coordinate description to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the utility model, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under effect that the utility model can produce and the object that can reach, still all should drop on technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, quote in this description as " on ", D score, "left", "right", " centre " and " one " etc. term, also only for ease of understanding of describing, and be not used to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the utility model.
Consult shown in Fig. 1 and Fig. 2, the utility model provides a kind of clamping type deep hole drill head, comprise be wholely set or split arrange cutting head and the cylinder body of rod, the utility model is wholely set, and bulk strength is higher.Channel of chip removal is provided with in the body of rod, channel of chip removal communicates with the chip-removal hole 4 that cutting head is arranged, chip-removal hole 4 comprises orthogonal quadrant hole, two sides, the arc surface of the head in quadrant hole is the first tubaeform cambered surface of outside enlarging, is connected with the second tubaeform cambered surface between the cylindricality arc surface in described quadrant hole and the first tubaeform cambered surface.The setting of the tubaeform cambered surface in cylindricality arc surface front end first and the second tubaeform cambered surface, makes the change in the inner aperture of chip-removal hole of the present utility model tend towards stability, eliminate bottleneck, thus chip removal of the present utility model is smooth and easy, not easily stifled bits.Meanwhile, in order to ensure that chip removal is smooth and easy, the gradient of the first tubaeform cambered surface is set to 15 °-25 °, preferably 20 °, and the gradient of the second tubaeform cambered surface is set to 8 °-12 °, preferably 10 °.
Cutting head outer wall is provided with main guide pad 1 and secondary guide pad 2, and length and the width of secondary guide pad 2 are 20mm, effectively improve guiding accuracy, make blade not fragile, improve stability, and then the corresponding contact area adding guide pad and fairlead, thus decrease the consumption of fairlead.
Cutting-head forward end is provided with at least two removable cutting edges 3, directly can change upon wear, increase the service life.Cutting edge 3 is provided with chip dividing groove, and the width of chip dividing groove is 1.3-1.5mm, and chip breaking effect improves.
The cylinder body of rod comprises the thread segment for being connected with drilling rod, and the length of thread segment is 20mm, and after drill bit and drilling rod assemble, cutting head rear end directly contacts with drilling rod, increases the rigidity of connecting portion.
By above improvement, the utility model ￠ 26.5 clamping type deep hole drill head every cost only 535 yuan, has reached the order point falling this under same service life.By the production practices of nearly 2 years, on average every drill bit can process 5.1 tons, and mean consumption drops to 105 yuan/ton.
In sum, the utility model chip removal is smooth and easy, not easily stifled bits.Increase guiding accuracy and rigidity, improve the stability of drill bit, reduce the consumption of fairlead, and then improve the service life of drill bit, the surface quality of product and reduction production cost.So the utility model effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not for limiting the utility model.Any person skilled in the art scholar all without prejudice under spirit of the present utility model and category, can modify above-described embodiment or changes.Therefore, such as have in art and usually know that the knowledgeable modifies or changes not departing from all equivalences completed under the spirit and technological thought that the utility model discloses, must be contained by claim of the present utility model.
Claims (7)
1. a clamping type deep hole drill head, it is characterized in that, comprise cutting head and the cylinder body of rod, channel of chip removal is provided with in the body of rod, channel of chip removal communicates with the chip-removal hole that cutting head is arranged, described chip-removal hole comprises orthogonal quadrant hole, two sides, and the arc surface of the head in described quadrant hole is the first tubaeform cambered surface of outside enlarging, is connected with the second tubaeform cambered surface between the cylindricality arc surface in described quadrant hole and the first tubaeform cambered surface; Cutting head outer wall is provided with main guide pad and secondary guide pad, and cutting-head forward end is provided with at least two removable cutting edges, and cutting edge is provided with chip dividing groove, and the width of described chip dividing groove is 1.3-1.5mm.
2. clamping type deep hole drill head according to claim 1, is characterized in that, the cylinder body of rod comprises the thread segment for being connected with drilling rod, and the length of described thread segment is 20mm.
3. clamping type deep hole drill head according to claim 1, is characterized in that, when drill bit and drilling rod assemble, cutting head rear end contacts with drilling rod.
4. clamping type deep hole drill head according to claim 1, is characterized in that, length and the width of described secondary guide pad are 20mm.
5. clamping type deep hole drill head according to claim 1, is characterized in that, the gradient of described first tubaeform cambered surface is 15 °-25 °, and the gradient of described second tubaeform cambered surface is 8 °-12 °.
6. clamping type deep hole drill head according to claim 5, is characterized in that, the gradient of described first tubaeform cambered surface is 20 °, and the gradient of described second tubaeform cambered surface is 10 °.
7. clamping type deep hole drill head according to claim 1, is characterized in that, described cutting head and the cylinder body of rod are wholely set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503918.8U CN204843069U (en) | 2015-07-13 | 2015-07-13 | Machine presss from both sides formula deep hole drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520503918.8U CN204843069U (en) | 2015-07-13 | 2015-07-13 | Machine presss from both sides formula deep hole drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204843069U true CN204843069U (en) | 2015-12-09 |
Family
ID=54733666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520503918.8U Expired - Fee Related CN204843069U (en) | 2015-07-13 | 2015-07-13 | Machine presss from both sides formula deep hole drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204843069U (en) |
-
2015
- 2015-07-13 CN CN201520503918.8U patent/CN204843069U/en not_active Expired - Fee Related
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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: 20151209 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |