CN202239815U - Anti-deforming drill pin - Google Patents
Anti-deforming drill pin Download PDFInfo
- Publication number
- CN202239815U CN202239815U CN2011203847346U CN201120384734U CN202239815U CN 202239815 U CN202239815 U CN 202239815U CN 2011203847346 U CN2011203847346 U CN 2011203847346U CN 201120384734 U CN201120384734 U CN 201120384734U CN 202239815 U CN202239815 U CN 202239815U
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- China
- Prior art keywords
- bit
- blade part
- cutting edge
- knife
- withdrawing slot
- Prior art date
- 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 discloses an anti-deforming drill pin which is characterized in that the anti-deforming drill pin has a knife-edge part, the tail end of the knife-edge part is provided with a quiescent point, a side (away from the quiescent point) of the knife-edge part is connected with a knife-handle part, a first cutting edge is obliquely formed on the quiescent-point side of the tail end of the knife-edge part, and a second cutting edge is obliquely formed on the other side of the knife-edge part, the first cutting edge is concavely provided with a first flute winding around the knife-handle part, and the second cutting edge is concavely provided with a second flute winding around the knife-handle part, the screw pitch of the first flute faces the knife-handle part and the first flute carries out equidistant rotation, and the screw pitch of the second flute faces the knife-handle part and the second flute carries out variable-pitch rotation, so that the side (close to the quiescent point) of the knife-edge part is provided with the first flute and the second flute corresponding to the first cutting edge and the second cutting edge, and the side (close to the knife-handle part) of the knife-edge part is commutated so as to form a third flute.
Description
Technical field
The utility model relates to a kind of drill point, instigates especially to be used for bore operation, can reduce the situation of generative center position beat and reaming, the drill point that borehole accuracy is greatly promoted.
Background technology
Existing drill point structure as shown in Figure 1 has a handle of a knife portion 4, and these handle of a knife portion 4 one sides are extended with a blade part 3, and the end of this blade part 3 has a dead point 31; And being formed with cutting edge 32 in these dead point 31 2 sides, each cutting edge 32 1 side is curled up towards handle of a knife portion 4 respectively and is concaved with the consistent bit-withdrawing slot 33 of pitch, therefore; The quantity of cutting edge 32 is many more, and the quantity of its bit-withdrawing slot 33 is also just many more, and the cross section sectional area of blade part 3 also just relatively diminishes; And then blade part 3 integral intensity are descended relatively; Cause drill point when holing, when pressing down feed, make blade part 3 produce crooked deformation; Cause the situation of center beat and reaming to take place, drilling accuracy is greatly descended.
Therefore, how to solve above-mentioned existing problem and disappearance, be the problem of being engaged in research and development that this relevant dealer desires most ardently.
Summary of the invention
The main purpose of the utility model is to be, the blade part that utilizes drill point is at the cross section sectional area near handle of a knife portion side, greater than the cross section sectional area of blade part near the dead point side, with effective lifting blade part bulk strength, to improve ability of anti-deformation.
For realizing above-mentioned purpose, the technical scheme that the utility model adopts is:
A kind of drill point of anti-deformation, this drill point has a blade part, and this blade part end has a dead point, and this blade part is connected with a handle of a knife portion away from the dead point side, it is characterized in that:
This blade part end in dead point one skew back to being formed with first cutting edge; Oblique second cutting edge that is formed with of its opposite side; The first cutting edge place is concaved with first bit-withdrawing slot that curls up towards handle of a knife portion; And the second cutting edge place is concaved with second bit-withdrawing slot that curls up towards handle of a knife portion; The pitch of first bit-withdrawing slot is equidistance towards handle of a knife portion curls up, and the pitch of second bit-withdrawing slot is displacement towards handle of a knife portion and curls up, make first bit-withdrawing slot towards handle of a knife portion curl up and combine with the second bit-withdrawing slot intersection to form towards handle of a knife portion sidespin around the 3rd bit-withdrawing slot; Make blade part have first bit-withdrawing slot and second bit-withdrawing slot of corresponding first cutting edge and second cutting edge, and be communicated with into one the 3rd bit-withdrawing slot near the side of handle of a knife portion at blade part near the side of dead point.
This blade part is at the cross section sectional area near handle of a knife portion side, greater than the cross section sectional area of blade part near the dead point side.
Compared with prior art; Adopt the advantage that the utlity model has of technique scheme to be: the blade part of the utility model is concaved with first bit-withdrawing slot and second bit-withdrawing slot that curls up towards handle of a knife portion near the dead point side; And first bit-withdrawing slot curls up to blade part can combine to be communicated with formation the 3rd bit-withdrawing slot with second bit-withdrawing slot after near the side of handle of a knife portion; Make blade part at cross section sectional area,, and then effectively increase the blade part integral intensity greater than the cross section sectional area of blade part near the dead point side near handle of a knife portion side; To let blade part in carrying out bore operation when pressing down feed; Make blade part produce the curved variable and significantly reduce, reduce situation, drilling accuracy is greatly promoted into center beat and reaming.
Description of drawings
Fig. 1 is the sectional perspective outside drawing of existing drill point;
Fig. 2 is the stereo appearance figure of the utility model;
Fig. 3 is the stereo appearance figure of another side of the utility model;
Fig. 4 is the A enlarged drawing partly of Fig. 2;
Fig. 5 is the B enlarged drawing partly of Fig. 3.
Description of reference numerals: 10-drill point; The 1-blade part; The 11-dead point; 12-first cutting edge; 13-second cutting edge; 14-first bit-withdrawing slot; 15-second bit-withdrawing slot; 16-the 3rd bit-withdrawing slot; 2-handle of a knife portion; The 3-blade part; The 31-dead point; The 32-cutting edge; The 33-bit-withdrawing slot.
The specific embodiment
See also Fig. 2 to shown in Figure 5; Find out by knowing among the figure; This drill point 10 has a blade part 1; This blade part 1 end has a dead point 11, and this blade part 1 is connected with a handle of a knife portion 2 away from dead point 11 sides, this blade part 1 end face in dead point 11 1 skew backs to being formed with first cutting edge 12; Oblique second cutting edge 13 that is formed with of its opposite side; First cutting edge, 12 1 sides of these dead point 11 1 sides are concaved with first bit-withdrawing slot 14 that curls up towards handle of a knife portion 2, second cutting edge 13 of these dead point 11 1 sides away from the opposite side of first bit-withdrawing slot 14 be concaved with towards handle of a knife portion 2 curl up second bit-withdrawing slot 15, and the pitch of first bit-withdrawing slot 14 is equidistance towards handle of a knife portion 2 and curls up; And being displacement towards handle of a knife portion 2, the pitch of second bit-withdrawing slot 15 curls up; Make first bit-withdrawing slot 14 towards handle of a knife portion 2 curl up can combine with 15 intersections of second bit-withdrawing slot to the appropriate location formation towards handle of a knife portion 2 sidespins around the 3rd bit-withdrawing slot 16, make blade part 1 have first bit-withdrawing slot 14 and second bit-withdrawing slot 15 of corresponding first cutting edge 12 and second cutting edge 13, and be communicated with into one the 3rd bit-withdrawing slot 16 near the side of handle of a knife portion 2 at blade part 1 near the side of dead point 11.
When the user when the 10 pairs of preset workpiece (not shown) of drill point that use the utility model carry out bore operation; System is held in surface of the work with blade part 1 end; To let blade part 1 terminal first cutting edge 12 and 13 pairs of surface of the works of second cutting edge cut; Make the chip that is produced via first cutting edge 12 and the cutting of second cutting edge 13 be expelled to the 3rd bit-withdrawing slot 16 by first bit-withdrawing slot 14 and second bit-withdrawing slot 15 of first cutting edge 12 and the 13 1 side settings of second cutting edge respectively, and continuously be expelled to outside the blade part 1 by the 3rd bit-withdrawing slot 16.
So; The utility model is for solving the deficiency and the disappearance of prior art, and its key technology is to be, the blade part 1 of the utility model is concaved with first bit-withdrawing slot 14 and second bit-withdrawing slot 15 that curls up towards handle of a knife portion 2 near dead point 11 sides; And first bit-withdrawing slot 14 curls up to blade part 1 can combine be communicated with formation the 3rd bit-withdrawing slot 16 with second bit-withdrawing slot 15 after near the side of handle of a knife portion 2; Make blade part 1 at cross section sectional area,, and then effectively increase blade part 1 integral intensity greater than the cross section sectional area of blade part 1 near dead point 11 sides near handle of a knife portion 2 sides; To let blade part 1 in carrying out bore operation when pressing down feed; Make blade part 1 produce the curved variable and significantly reduce, reduce situation, drilling accuracy is greatly promoted into center beat and reaming.
More than explanation is just illustrative as far as the utility model; And nonrestrictive, those of ordinary skills understand, under the situation of spirit that does not break away from claim and limited and scope; Can make many modifications, variation or equivalence, but all will fall within the protection domain of the utility model.
Claims (2)
1. the drill point of an anti-deformation, this drill point has a blade part, and this blade part end has a dead point, and this blade part is connected with a handle of a knife portion away from the dead point side, it is characterized in that:
This blade part end in dead point one skew back to being formed with first cutting edge; Oblique second cutting edge that is formed with of its opposite side; The first cutting edge place is concaved with first bit-withdrawing slot that curls up towards handle of a knife portion; And the second cutting edge place is concaved with second bit-withdrawing slot that curls up towards handle of a knife portion; The pitch of first bit-withdrawing slot is equidistance towards handle of a knife portion curls up, and the pitch of second bit-withdrawing slot is displacement towards handle of a knife portion and curls up, make first bit-withdrawing slot towards handle of a knife portion curl up and combine with the second bit-withdrawing slot intersection to form towards handle of a knife portion sidespin around the 3rd bit-withdrawing slot; Make blade part have first bit-withdrawing slot and second bit-withdrawing slot of corresponding first cutting edge and second cutting edge, and be communicated with into one the 3rd bit-withdrawing slot near the side of handle of a knife portion at blade part near the side of dead point.
2. according to the drill point of the said anti-deformation of claim 1, it is characterized in that: this blade part is at the cross section sectional area near handle of a knife portion side, greater than the cross section sectional area of blade part near the dead point side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203847346U CN202239815U (en) | 2011-10-08 | 2011-10-08 | Anti-deforming drill pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203847346U CN202239815U (en) | 2011-10-08 | 2011-10-08 | Anti-deforming drill pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202239815U true CN202239815U (en) | 2012-05-30 |
Family
ID=46101117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203847346U Expired - Fee Related CN202239815U (en) | 2011-10-08 | 2011-10-08 | Anti-deforming drill pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202239815U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363304A (en) * | 2017-08-31 | 2017-11-21 | 广州卓程电子科技有限公司 | A kind of drill point of high-efficient cutting |
| CN107442815A (en) * | 2017-08-31 | 2017-12-08 | 广州卓程电子科技有限公司 | A kind of high intensity drill point |
-
2011
- 2011-10-08 CN CN2011203847346U patent/CN202239815U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107363304A (en) * | 2017-08-31 | 2017-11-21 | 广州卓程电子科技有限公司 | A kind of drill point of high-efficient cutting |
| CN107442815A (en) * | 2017-08-31 | 2017-12-08 | 广州卓程电子科技有限公司 | A kind of high intensity drill point |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20191008 |