CN207534020U - A kind of improved cutter arbor for depth drill - Google Patents
A kind of improved cutter arbor for depth drill Download PDFInfo
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- CN207534020U CN207534020U CN201721576903.XU CN201721576903U CN207534020U CN 207534020 U CN207534020 U CN 207534020U CN 201721576903 U CN201721576903 U CN 201721576903U CN 207534020 U CN207534020 U CN 207534020U
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- chip removal
- bar body
- chip
- cutter
- cutter bar
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Abstract
The utility model provides a kind of improved cutter arbor for depth drill, including cutter bar body, cutter bar body front end is equipped with cutter head, tool bit diameter is more than cutter bar body diameter, cutter bar body and cutter head upper edge are axially arranged with chip space, and chip space extends to the tail end of cutter bar body from cutter head, chip space include the first chip removal positioned at cutter bar body and bit interface while and during the second chip removal, first chip removal while and when the second chip removal be oppositely arranged, the first chip removal while and during the second chip removal on be equipped with the cutting edge of dentation.The utility model sets cutting edge on chip space, cuts the steel cuttings between cutter bar body and hole wall gap, chip space is made to have both the effect of chip removal and chip, improves drilling efficiency.
Description
Technical field
The utility model belongs to depth drill technical field, and in particular to a kind of improved cutter arbor for depth drill.
Background technology
Depth drill is used exclusively for the drill bit of deep hole processing.The ratio between hole depth and aperture are usually more than 6 in mechanical processing
Hole be known as deep hole.The knife bar of depth drill of the prior art is equipped with cooling liquid bath and chip space, and cooling liquid bath is used in knife
Circulation coolant, prevents from conducting to knife bar due to generating a large amount of heat in boring procedure in bar, and leads to the excessively high shortening of temperature
Service life；Chip space prevents steel cuttings from staying in deep hole for collecting in time and quickly discharging the steel cuttings generated in boring procedure
Drilling efficiency is reduced, due to being typically provided with gap between knife bar and hole wall, after the steel cuttings that cutter head is cut enters in chip space, big portion
It is discharged when steel splitting bits are with knife bar withdrawing, but still there is part steel cuttings to be stuck in knife bar and deep hole during drill rotates and advances
Gap in, thus cannot smoothly feed and withdrawing, reduce drilling efficiency；Meanwhile the steel cuttings meeting blocked after long-time use
Accelerated wear test knife bar surface layer shortens the service life of drill.
To solve the problems, such as in boring procedure that steel cuttings discharge is not smooth, need to design a kind of chip removal it is efficient for depth drill
Knife bar.
Utility model content
The purpose of this utility model is to provide a kind of improved cutter arbor for depth drill, and chip space can cut and be stuck in
Steel cuttings between knife bar and hole wall, chip removal are efficient.
The utility model provides following technical solution：
A kind of improved cutter arbor for depth drill, including cutter bar body, cutter bar body front end is equipped with cutter head, tool bit diameter
More than cutter bar body diameter, cutter bar body and cutter head upper edge are axially arranged with chip space, and chip space includes being located at cutter bar body and knife
First chip removal of head surface while and during the second chip removal, the first chip removal while and when the second chip removal be oppositely arranged, the first chip removal side and
Two chip removal sides are equipped with the cutting edge of dentation.
Preferably, cutting edge respectively along the first chip removal while and when the second chip removal continuously set.
Preferably, cutting edge includes the straight sword radially set along cutter bar body and the inclined edge of connection is tilted with straight sword.
Preferably, the depth of straight sword is 0.5-1mm, and the angle of inclined edge and straight sword is 30 ° -60 °.
Preferably, cutting edge surface is equipped with the wearing layer handled through physical gas-phase deposition.
Preferably, the tail end of cutter bar body is equipped with lead-over groove, lead-over groove include the first chip removal of connection while and during the second chip removal
Connecting portion, transition rooved face be equipped with plating magnetosphere.
The beneficial effects of the utility model are：Cutting edge on chip space is set, is cut between cutter bar body and hole wall
Steel cuttings between gap makes chip space have both the effect of chip removal and chip, improves drilling efficiency；The inclined edge of cutting edge is more efficient
Ground cuts the steel cuttings of relative motion, further improves chip effect；The lead-over groove of chip space rear end adsorbs and collects fines,
The fines friction hole wall generated during feed is prevented, ensure that the machining accuracy of drilling.
Description of the drawings
Attached drawing is used to provide a further understanding of the present invention, and a part for constitution instruction, with this practicality
Novel embodiment for explaining the utility model, does not form the limitation to the utility model together.In the accompanying drawings：
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the enlarged diagram of part A in Fig. 1；
Fig. 3 is the elevational schematic view of Fig. 1.
In figure label for：1. cutter bar body；2. cutter head；3. chip space；31. the first chip removal side；32. the second chip removal side；33.
Cutting edge；331. straight sword；332. inclined edge；4. lead-over groove；41. connecting portion.
Specific embodiment
As shown in Figure 1 to Figure 3, a kind of improved cutter arbor for depth drill, including cutter bar body 1,1 front end of cutter bar body
Equipped with cutter head 2,2 diameter of cutter head is more than 1 diameter of cutter bar body, and cutter bar body 1 and 2 upper edge of cutter head are axially arranged with chip space 3, chip removal
Slot 3 extends close to the tail end of cutter bar body 1 from cutter head 2, and chip space 3 includes first positioned at 2 surface of cutter bar body 1 and cutter head
Chip removal is at 31 and the second chip removal 32, and the first chip removal 32 is oppositely arranged at 31 and the second chip removal, the first chip removal side 31 and second
Chip removal side 32 is equipped with the cutting edge 33 of dentation.With the rotation feed of cutter bar body 1, it is stuck between cutter bar body 1 and deep hole
Steel cuttings in gap and the steel cuttings being deposited in chip space 3, collide with the cutting edge 33 of dentation, are cut into again by cutting edge 33
Small steel cuttings makes foreign card resistance between cutter bar body 1 and inner walls of deep holes, and chip space 3 is made to have both chip removal and chip function, protects
It is smooth feed, withdrawing process have been demonstrate,proved.The cutting edge 33 of dentation also adds the contact area of chip space 3 and cutter coolant, changes
It has been apt to the cooling effect of cutter bar body 1.
Preferably, the 32 continuous setting at 31 and the second chip removal along the first chip removal respectively of cutting edge 33, makes chip removal and chip
Process be carried out continuously.
Preferably, cutting edge 33 includes the straight sword 331 radially set along cutter bar body 1 and tilts connection with straight sword 331
Inclined edge 332.The steel cuttings moved during feed to 1 tail end direction of cutter bar body is formed carefully by the cutting of the inclined edge 332 of relative motion
Bits, chip are more efficient.
Preferably, the depth of straight sword 331 is 0.5-1mm, and inclined edge 332 and the angle of straight sword 331 are 30 ° -60 °.
Preferably, 33 surface of cutting edge is equipped with the wearing layer handled through physical gas-phase deposition, 33 surface of cutting edge warp
Physical gas-phase deposition processing enhances the processing intensity of cutting edge 33, extends the service life of knife bar.
Preferably, the tail end of cutter bar body 1 is equipped with lead-over groove 4, and lead-over groove 4 includes the first chip removal side 31 of connection and second row
Consider the connecting portion 41 on side 32 to be worth doing, 4 surface of lead-over groove is equipped with plating magnetosphere.The magnetic force of plating magnetosphere is preferred with that can adsorb the intensity of fines,
With the propulsion of knife bar during drilling, the fines that cutting edge 33 is cut is moved to 1 tail end of cutter bar body, and plating magnetosphere collects fines
In lead-over groove 4, prevent fines from knife bar being followed to be moved in chip space 3 and grind hole wall, so as to influence the surface roughness of hole wall.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, although ginseng
The utility model is described in detail according to previous embodiment, it for those skilled in the art, still can be with
It modifies to the technical solution recorded in foregoing embodiments or equivalent replacement is carried out to which part technical characteristic.It is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this practicality
Within novel protection domain.
Claims (6)
1. a kind of improved cutter arbor for depth drill, including cutter bar body, the cutter bar body front end is equipped with cutter head, the knife
Head diameter is more than the cutter bar body diameter, and the cutter bar body and the cutter head upper edge are axially arranged with chip space, and feature exists
In, the chip space include the first chip removal while and during the second chip removal, first chip removal while and when second chip removal opposite set
Put, first chip removal while and during second chip removal on be equipped with the cutting edge of dentation.
2. the improved cutter arbor according to claim 1 for depth drill, which is characterized in that the cutting edge is respectively along institute
State the first chip removal while and when second chip removal continuously set.
3. the improved cutter arbor according to claim 1 for depth drill, which is characterized in that the cutting edge is included along institute
State the cutter bar body radially straight sword of setting and the inclined edge with straight sword inclination connection.
4. the improved cutter arbor according to claim 3 for depth drill, which is characterized in that the depth of the straight sword is
0.5-1mm, the angle of the inclined edge and the straight sword is 30o-60o.
5. the improved cutter arbor according to claim 1 for depth drill, which is characterized in that the cutting edge surface is equipped with
The wearing layer handled through physical gas-phase deposition.
6. the improved cutter arbor according to claim 1 for depth drill, which is characterized in that the tail end of the cutter bar body
Equipped with lead-over groove, the lead-over groove include connecting first chip removal while and connecting portion during second chip removal, the transition
Rooved face is equipped with plating magnetosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721576903.XU CN207534020U (en) | 2017-11-22 | 2017-11-22 | A kind of improved cutter arbor for depth drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721576903.XU CN207534020U (en) | 2017-11-22 | 2017-11-22 | A kind of improved cutter arbor for depth drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207534020U true CN207534020U (en) | 2018-06-26 |
Family
ID=62614866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721576903.XU Active CN207534020U (en) | 2017-11-22 | 2017-11-22 | A kind of improved cutter arbor for depth drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207534020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116213781A (en) * | 2023-05-06 | 2023-06-06 | 太原工具厂有限责任公司 | Indexable shallow hole drill assisting chip removal |
-
2017
- 2017-11-22 CN CN201721576903.XU patent/CN207534020U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116213781A (en) * | 2023-05-06 | 2023-06-06 | 太原工具厂有限责任公司 | Indexable shallow hole drill assisting chip removal |
| CN116213781B (en) * | 2023-05-06 | 2023-07-14 | 太原工具厂有限责任公司 | Indexable shallow hole drill assisting chip removal |
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