CN209206541U - A kind of drill bit being easy to chip removal - Google Patents
A kind of drill bit being easy to chip removal Download PDFInfo
- Publication number
- CN209206541U CN209206541U CN201822099725.7U CN201822099725U CN209206541U CN 209206541 U CN209206541 U CN 209206541U CN 201822099725 U CN201822099725 U CN 201822099725U CN 209206541 U CN209206541 U CN 209206541U
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- CN
- China
- Prior art keywords
- drilling rod
- chip removal
- drill bit
- chip
- easy
- 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
Links
- 238000005553 drilling Methods 0.000 claims abstract description 34
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims 1
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model relates to a kind of drill bits for being easy to chip removal, including drillstock and the drilling rod of drillstock end is set, the end of drilling rod is equipped with cutting edge, the side of drilling rod is equipped with helical flute compatible with cutting edge, the inside of drilling rod is equipped with elastic chip breaker compatible with helical flute, and the side of drilling rod is additionally provided with chip removal guide pad compatible with elastic chip breaker.Compared with prior art, the scrap of strip-spiral is cut to the short and small helical form of sheet or disconnection by elastic chip breaker by the utility model, scrap is set directly to be detached from helical flute using chip removal guide pad later, avoid scrap be wrapped on drillstock and be stuck in helical flute and caused by adverse effect, improve chip removal success rate.
Description
Technical field
The utility model belongs to bit technique field, is related to a kind of drill bit for being easy to chip removal.
Background technique
Drill bit is essential a kind of cutter in machining, is mainly used for drilling on workpiece.When drill bit is bored
Kong Shi, drill bit is driven in the vertical plane of axis in its center by electric drill or lathe to be rotated, and forms main motion, while drill bit also edge
Center axis thereof direction linear motion, forms feed motion.
Drill bit generally comprises two symmetrical cutting edges, two symmetrical helical flutes, and the cutting edge of drill bit is to workpiece
It is cut, cuts the scrap to get off and be discharged by the chip space on drill bit.For this drill bit in chip removal, scrap is along helical flute
The hand of spiral carry out chip removal, and scrap mostly correspondingly helically strip can finally be wrapped on drillstock and be stuck in spiral row
It considers to be worth doing in slot, it is difficult to completely remove.Especially when machined a certain number of workpiece, scrap often blocks up helical flute
Extremely, cause chip removal to fail, may also result in broken drill when serious.
Utility model content
The purpose of this utility model is exactly to provide one kind in order to overcome the problems of the above-mentioned prior art and be easy to chip removal
Drill bit.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of drill bit being easy to chip removal, the drill bit include drillstock and the drilling rod that drillstock end is arranged in, the drilling rod
End be equipped with cutting edge, the side of the drilling rod is equipped with helical flute compatible with cutting edge, the drilling rod
Inside is equipped with elastic chip breaker compatible with helical flute, and the side of the drilling rod is additionally provided with and elastic chip breaker
Compatible chip removal guide pad.Drillstock is fixedly clamped on electric drill or lathe.When drill bit is drilled, bit is cut
It cuts sword to cut the surface of workpiece, cuts the scrap to get off and gradually moved backward along helical flute, when moving to bullet
When at property chip breaker, elastic chip breaker cuts off scrap, and the scrap after cutting leaves debris along chip removal guide pad
Slot realizes chip removal.
Further, the drillstock and drilling rod are coaxially disposed.
Further, the side of the drilling rod is equipped with two helical flutes, one end of the helical flute altogether
It is connected with cutting edge, the other end is connected with drillstock.The scrap that cutting edge is cut is directly entered helical flute, and along spiral shell
Rotation chip space is gradually moved to drillstock direction.
Further, the inside of the drilling rod offers supporting block movable chamber, and the elastic chip breaker includes one
The support block assembly and a pair that are disposed in parallel in inside supporting block movable chamber are separately positioned on disconnected on two support block assemblies
Consider knife to be worth doing, two chip breaking knives are adapted with the helical flute of corresponding side respectively.The scrap cut along corresponding side spiral shell
When rotation chip space is gradually moved to backward at corresponding chip breaking knife, chip breaking knife is protruding and cuts off scrap, makes final give up
The short and small helical form in the form of sheets or disconnected is considered to be worth doing, convenient for being discharged from helical flute.
Further, the support block assembly includes supporting block inside supporting block movable chamber being arranged in and setting exists
Spring between supporting block and supporting block activity cavity wall.Supporting block is in supporting block movable chamber along the radial reciprocal fortune of drilling rod
It is dynamic, make chip breaking knife is intermittent to protrude into helical flute, the scrap in helical flute is cut off.
Further, gas chamber is equipped between two supporting blocks.
Further, the drilling rod is axially inside equipped with vent cap, which is connected with gas chamber.It is logical
Vent cap is crossed intermittently to ventilate, be evacuated, ventilate, be evacuated into gas chamber, chip breaking knife is made intermittently to stretch out, retract, stretch out,
It retracts, scrap is cut to the short and small helical form of sheet or disconnection.
Further, one end of the chip breaking knife is fixedly connected with supporting block, and the other end is connected with helical flute.It is disconnected
Bits knife can either protrude into helical flute, and can retract.
The spring is circumferentially positioned at the outside of chip breaking knife as a preferred technical solution, can either guarantee that balance is steady
It is fixed, and can be avoided spring and chip breaking knife interferes.
Further, the chip removal guide pad is equipped with curved guiding surface.Curved guiding surface is contacted with the scrap after cutting, and
The direction of motion and angle for changing scrap, make scrap directly be detached from helical flute along curved guiding surface.
The utility model is in practical application, being fixedly clamped drillstock on electric drill or lathe；When drill bit is drilled,
Bit, cutting edge cut the surface of workpiece, cut the scrap to get off and gradually move backward along helical flute,
It intermittently ventilates, be evacuated, ventilate, be evacuated into gas chamber by vent cap simultaneously, chip breaking knife is made intermittently to stretch out, contract
It returns, stretch out, retract, scrap is cut to the short and small helical form of sheet or disconnection；Scrap after cutting along chip removal guide pad from
Helical flute is opened, realizes chip removal.
Compared with prior art, the utility model has the following characteristics that
1) scrap of strip-spiral is cut to the short and small helical form of sheet or disconnection, Zhi Houli by elastic chip breaker
So that scrap is directly detached from helical flute with chip removal guide pad, avoids scrap and be wrapped on drillstock and be stuck in helical flute
It is adversely affected caused by and, improves chip removal success rate；
2) by being passed through pressure-air into gas chamber, supporting block can be pushed outwardly, so that chip breaking knife carries out scrap
Cut off work；And chip breaking knife can be made to retract, be convenient for cutting off work next time, stabilization easy to operate by pumping process,
Practicability is good.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the cross section structure schematic diagram of elastic chip breaker in the utility model；
Fig. 3 is the structural schematic diagram of chip removal guide pad in the utility model；
Description of symbols in figure:
1-drillstock, 2-drilling rods, 3-cutting edges, 4-helical flutes, 5-chip removal guide pads, 501-curved guiding surfaces,
6-supporting block movable chambers, 7-chip breaking knives, 8-supporting blocks, 9-springs, 10-gas chambers.
Specific embodiment
The utility model is described in detail in the following with reference to the drawings and specific embodiments.The present embodiment is with the utility model
Implemented premised on technical solution, the detailed implementation method and specific operation process are given, but the guarantor of the utility model
Shield range is not limited to the following embodiments.
Embodiment:
A kind of drill bit being easy to chip removal as shown in Figure 1 including drillstock 1 and is arranged in the drilling rod 2 of 1 end of drillstock, bores
The end of bar 2 is equipped with cutting edge 3, and the side of drilling rod 2 is equipped with helical flute 4 compatible with cutting edge 3, the inside of drilling rod 2
Equipped with elastic chip breaker compatible with helical flute 4, the side of drilling rod 2 is additionally provided with compatible with elastic chip breaker
Chip removal guide pad 5.
Wherein, drillstock 1 and drilling rod 2 are coaxially disposed.The side of drilling rod 2 is equipped with two helical flutes 4, helical flute altogether
4 one end is connected with cutting edge 3, and the other end is connected with drillstock 1.
As shown in Fig. 2, the inside of drilling rod 2 offers supporting block movable chamber 6, elastic chip breaker is set side by side including a pair
Support block assembly and a pair of chip breaking knife 7 being separately positioned on two support block assemblies inside supporting block movable chamber 6, two is disconnected
Bits knife 7 is adapted with the helical flute 4 of corresponding side respectively.Supporting block assembly includes being arranged inside supporting block movable chamber 6
Supporting block 8 and the spring 9 that is arranged between 6 inner wall of supporting block 8 and supporting block movable chamber.Gas is equipped between two supporting blocks 8
Room 10.Drilling rod 2 is axially inside equipped with vent cap, which is connected with gas chamber 10.One end of chip breaking knife 7 and branch
Bracer 8 is fixedly connected, and the other end is connected with helical flute 4.Spring 9 is circumferentially positioned at the outside of chip breaking knife 7.
As shown in figure 3, chip removal guide pad 5 is equipped with curved guiding surface 501.
In practical application, being fixedly clamped drillstock 1 on electric drill or lathe；When drill bit is drilled, bit,
Cutting edge 3 cuts the surface of workpiece, cuts the scrap to get off and gradually moves backward along helical flute 4, leads to simultaneously
It crosses vent cap intermittently to ventilate, be evacuated, ventilate, be evacuated into gas chamber 10, chip breaking knife 7 is made intermittently to stretch out, retract, stretch
Out, it retracts, scrap is cut to the short and small helical form of sheet or disconnection；Scrap after cutting leaves spiral shell along chip removal guide pad 5
Chip space 4 is revolved, realizes chip removal.
It can understand the above description of the embodiments is intended to facilitate those skilled in the art and use practical
It is novel.Person skilled in the art obviously easily can make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiments without having to go through creative labor.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model scope is made and
Modification should be all within the protection scope of the utility model.
Claims (9)
1. a kind of drill bit for being easy to chip removal, which is characterized in that the drill bit includes drillstock (1) and is arranged in drillstock (1) end
The end of drilling rod (2), the drilling rod (2) is equipped with cutting edge (3), and the side of the drilling rod (2) is equipped with and cutting edge (3) phase
The helical flute (4) of adaptation, the inside of the drilling rod (2) are equipped with the compatible elasticity chip breaking machine with helical flute (4)
Structure, the side of the drilling rod (2) are additionally provided with chip removal guide pad (5) compatible with elastic chip breaker.
2. a kind of drill bit for being easy to chip removal according to claim 1, which is characterized in that the drillstock (1) and drilling rod (2)
Coaxial arrangement.
3. a kind of drill bit for being easy to chip removal according to claim 1, which is characterized in that the side of the drilling rod (2) is total
Equipped with two helical flutes (4), one end of the helical flute (4) is connected with cutting edge (3), the other end and drillstock
(1) it is connected.
4. a kind of drill bit for being easy to chip removal according to claim 3, which is characterized in that open the inside of the drilling rod (2)
Equipped with supporting block movable chamber (6), the elastic chip breaker includes that a pair is disposed in parallel in supporting block movable chamber (6) inside
Support block assembly and a pair of chip breaking knife (7) being separately positioned on two support block assemblies, two chip breaking knives (7) are respectively with corresponding one
The helical flute (4) of side is adapted.
5. a kind of drill bit for being easy to chip removal according to claim 4, which is characterized in that the support block assembly includes setting
Set the internal supporting block (8) of supporting block movable chamber (6) and setting supporting block (8) and supporting block movable chamber (6) inner wall it
Between spring (9).
6. a kind of drill bit for being easy to chip removal according to claim 5, which is characterized in that be equipped with gas between two supporting blocks (8)
Room (10).
7. a kind of drill bit for being easy to chip removal according to claim 6, which is characterized in that the inside edge of the drilling rod (2)
It is axially arranged with vent cap, which is connected with gas chamber (10).
8. a kind of drill bit for being easy to chip removal according to claim 5, which is characterized in that one end of the chip breaking knife (7)
It is fixedly connected with supporting block (8), the other end is connected with helical flute (4).
9. a kind of drill bit for being easy to chip removal according to claim 1, which is characterized in that on the chip removal guide pad (5)
Equipped with curved guiding surface (501).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822099725.7U CN209206541U (en) | 2018-12-14 | 2018-12-14 | A kind of drill bit being easy to chip removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822099725.7U CN209206541U (en) | 2018-12-14 | 2018-12-14 | A kind of drill bit being easy to chip removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209206541U true CN209206541U (en) | 2019-08-06 |
Family
ID=67464570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822099725.7U Expired - Fee Related CN209206541U (en) | 2018-12-14 | 2018-12-14 | A kind of drill bit being easy to chip removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209206541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115584959A (en) * | 2022-10-09 | 2023-01-10 | 平顶山市安泰华矿用安全设备制造有限公司 | Rotary drilling machine drilling track control method and drilling equipment |
-
2018
- 2018-12-14 CN CN201822099725.7U patent/CN209206541U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115584959A (en) * | 2022-10-09 | 2023-01-10 | 平顶山市安泰华矿用安全设备制造有限公司 | Rotary drilling machine drilling track control method and drilling equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |