CN107570767A - A kind of chamfer drill safety protection device - Google Patents
A kind of chamfer drill safety protection device Download PDFInfo
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- CN107570767A CN107570767A CN201710597596.1A CN201710597596A CN107570767A CN 107570767 A CN107570767 A CN 107570767A CN 201710597596 A CN201710597596 A CN 201710597596A CN 107570767 A CN107570767 A CN 107570767A
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- folder drum
- drum
- translucent cover
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Abstract
The present invention discloses a kind of chamfer drill safety protection device, belong to frame for movement technical field, safety protector includes upper folder and roused, lower folder drum, and translucent cover, upper folder drum, lower folder drum is formed by the folder drum earrings that extends in central part and centre, upper folder drum, the folder drum earrings of lower folder drum is connected by connecting rod, provided with the rotating ring by uneven contact and determine ring in the center of lower folder drum, translucent cover of the connection with opening on rotating ring, translucent cover lower end outside is connected with protective cover, it is cased with having screw thread in the connecting rod of spring and is connected with and is connected with top nut and lower nut, form the arrangement for adjusting height of the lower folder drum of regulation, spring is cased with connecting rod.Have the beneficial effect that：The safety device of the present invention can be completely isolated with outside by iron filings caused by chamfering, effectively prevents scrap iron from splashing, avoids iron filings etc. from hurting operator, can reduce the hygienic issues of working environment caused by scrap iron from splashing, reduces unnecessary potential safety hazard.
Description
Technical field
The invention belongs to frame for movement technical field, more particularly to a kind of chamfer drill safety protection device.
Background technology
" Safety first, precaution crucial ", in production and processing manufacturing, personal safety increasingly attracts attention, technology people
Member is when completing various processing, production work, it is necessary to takes into full account security, the personal safety of operating personnel is placed on primary position
Put.In machining, production field, in process of production, most of part is required for chamfering, and the less part of volume weight can
To fall the angle in aperture with bench drill.Bench drill is a kind of compact, easy to operate, during chamfering by drill bit clamping on drill jig, is used
Fixed wrench tightens the main motion that drill jig, drill bit and drill jig are acted rotation by drill press spindle band, while drill bit is along its axial direction
Make feed motion, you can chamfering is processed on solid material.Its main shaft speed change is typically by changing V-belt in tower band
Position on wheel realizes, axis feeding is the essential equipment of machine-building and various repair factories by manually operated.
Generally when using drilling machine chamfering, drilling bit high-speed rotary, operating personnel's facial dimension lathe is close, and bench drill surrounding
There is no a protective equipment, during chamfering iron filings under the influence of centrifugal force, splashes, or because chamfering strength is improper, it is impossible to
Natural chip breaking, long iron filings are bonded on cutter, rotated with cutter at high speeds, and operating personnel are caused and the potential danger such as pull, scald
Danger；When woman worker operates, if not wearing work clothes by operational procedure, being branded as, long pigtail or clothing accessories easily involve in main shaft,
Cause personal injury；Scrap iron from splashing not only influences environmental sanitation to ground, and cause the workshop stream of people, logistics corridor it is not smooth,
Inconvenience and potential safety hazard are brought to production；Scrap iron from splashing is adhered on mould, is easily caused product scuffing, is influenceed chamfering matter
Amount.Therefore, in order to protect in the operating personnel of operating space and other staff and part, it is necessary in chamfering using a kind of or more
Kind safety prevention measure.
The content of the invention
Easy to make it is an object of the invention to provide a kind of design structure is simple and practical, installation is easy, using flexible,
Do not influence the operation of personnel at all, avoid iron filings from flying out, realize the protection to chamfer drill operating personnel, effectively avoid chamfering mistake
The chamfer drill safety protection device that accident in journey occurs.
The scheme taken to achieve the above object of the present invention is：A kind of chamfer drill safety protection device, including upper folder drum,
The center superposition of lower folder drum, upper folder drum, lower folder drum are formed by the folder drum earrings that extends in central part and centre, upper folder
The folder drum earrings of bulging, lower folder drum is connected by connecting rod, and upper folder rouses the overcoat of connection drill press spindle, and the center of lower folder drum, which is provided with, to be moved
Ring and determine ring, connect translucent cover on rotating ring, the drill bit of chamfer drill is through upper folder drum, the centre bore of lower folder drum, the drill bit of chamfer drill
Outside be provided with translucent cover.The drill bit of rotation is isolated from the outside by the safety device of the present invention by translucent cover, iron filings
Speed can be reduced by being splashed on translucent cover, have reliable security；At work can aspect observation drill bit and drill bit and workpiece
Relative position, grasp chamfer drill working condition, do not influence chamfering operation；Translucent cover can phantom ring rotation and rotate, make down
Iron filings caused by angle can be entered in protective cover from the opening of translucent cover in time, reduce accumulation of the iron filings in translucent cover；The peace
Full protection device directly can be easily understood by the overcoat of upper folder drum connection drill press spindle, connected mode, easy disassembling, it is not necessary to
Special training, facilitates operating personnel to use.
Preferably, translucent cover lower end outside is connected with protective cover, protective cover is the L-type metal material that wall thickness is 2-2.5mm
Material, protective cover can be completely isolated with outside by iron filings caused by chamfering, effectively prevents scrap iron from splashing, avoids iron filings etc. from hurting behaviour
The eyes and face of author, ensure operating personnel's safety；It can fundamentally prevent what is brought due to bit to operator
Hair or the indrawn danger of clothes, it is ensured that operator keeps the safety in production；The health of working environment caused by scrap iron from splashing can be reduced
Problem, it is ensured that working environment it is clean and tidy, reduce unnecessary potential safety hazard.
Preferably, protective cover surface is coated with wear-resistant coating, wear-resistant coating is made up of following component and parts by weight：It is organic
Silicon-modified polyester resin 33-42 parts, graphene 1-2 parts, epoxy resin 35-40 parts, phenolic resin 21-25 parts, carboxymethyl cellulose
Plain sodium 2-4 parts, nano zine oxide 1-2 parts, dimethylbenzene 20-30 parts, isopropanol 3-7 parts, stabilizer 0.1-0.3 parts, graphene are
The 0.5-3% of weight resin.By controlling the ratio of graphene and resin, it can prevent graphene from agglomeration occurs, can be uniform
It is scattered among resin, improves interface bond strength, effectively lifts the mechanical property of coating so that the wearability of the wear-resistant coating
Can be excellent, intensity hardness is high, and protective cover can effectively be strengthened by being used after protective cover surface spraying wear-resistant coating after baking and curing
Wearability and scratch resistant, infringement of the iron filings that fly out of chamfering to protective cover is reduced, extend the service life of protective cover, and this is wear-resisting
Coating film forming and caking property are good, avoid coating cracking or come off, and the coating has higher radiating efficiency and heat resistance so that
The iron filings of higher temperature will not produce degraded and infringement to coating, avoid causing the excessive temperature of protective cover from raising, reduce operation
The high temperature injury of personnel, while protective cover is protected, extend its service life.
Preferably, the stabilizer in erosion shield formula is functional activity polypeptide, the amino acid of functional activity polypeptide
Sequence is：HSHACKLCVCVNAKCYLCRVLHPGKLCVCNCSK, it is each in preparation process that the stabilizer can significantly increase coating
The chemical reaction stablizing effect of composition, reduces the layering of coating so that coating system stable homogeneous, Shelf-life, and favorably
In lifting erosion shield salt tolerant fog effect, be advantageous to strengthen corrosion-inhibiting coating antiseptic effect and anti-corrosion effective time.
Preferably, translucent cover is transparent plastic plate, translucent cover has opening, and aperture area is translucent cover surface area
1/5-1/4, the edge of opening do bound edge processing.The plastic plate has higher-strength and coefficient of elasticity, high impact strength and higher
Heat resistance；The opening of translucent cover can make iron filings fly out into protective cover, prevent iron filings from being accumulated in translucent cover, can avoid to saturating
The working condition of bright cover has an impact to be damaged with translucent cover；Translucent cover can be limited in certain angle range by opening all the time, be kept away
Opening needs the minimum range of chamfering part and chamfer drill；The opening of translucent cover can facilitate adds coolant to drill bit, reduces the work of drill bit
Make temperature, reduce infringement of the high temperature to drill bit；The edge of opening does bound edge processing, can reduce the iron filings mill that translucent cover is flown out
Damage, improve the working life of translucent cover.
Preferably, rotating ring and determining ring and being less than recess arc length, rotating ring by uneven contact, wherein protuberance arc length
It can be rotated in the scope of convex-concave arc length difference, rotating ring, determine either one in ring and can form protuberance and other direction formation recess,
So as to the two uneven contact, corner can be formed and be less than 360 ° of revolute pair, while make translucent cover that there is certain corner, from
And the chamfer machining of various different sizes can be effectively dealt with, the minimum range of chamfering part and chamfer drill is avoided, translucent cover can be avoided
Damage.
Preferably, have screw thread in connecting rod and be connected with and be connected with top nut and lower nut, the screw thread on connecting rod and
Nut forms the arrangement for adjusting height of the lower folder drum of regulation.Because chamfering is drilled through reconditioning, its length can change, so the height is adjusted
Device can be always ensured that translucent cover is in the unsafe position of chamfer drill, ensure that safety device plays its corresponding function,
And chamfering operation is not influenceed again.
Preferably, being cased with spring in connecting rod, when carrying out chamfering operation, the spring of connecting rod periphery can absorb drill bit
Vibration and impact energy caused by rotating at a high speed, play a part of significantly buffering, and connecting rod is reduced vibration, reduce vibration pair
The impulsive force of connecting rod, extend the service life of connecting rod.
Compared with prior art, beneficial effects of the present invention are：The safety device of the present invention can be square by translucent cover
Drill bit and the relative position of drill bit and workpiece are observed in face, grasp chamfer drill working condition, do not influence chamfering operation, produce chamfering
Iron filings can be entered in time from the opening of translucent cover in protective cover, reduce accumulation of the iron filings in translucent cover；Protective cover can incite somebody to action
Iron filings caused by chamfering are completely isolated with outside, effectively prevent scrap iron from splashing, avoid iron filings etc. hurt operator eyes and
Face, ensure operating personnel's safety, while the hygienic issues of working environment caused by scrap iron from splashing can be reduced, it is ensured that working environment
It is clean and tidy, reduce unnecessary potential safety hazard；Rotating ring can form revolute pair of the corner less than 360 ° with ring is determined, and have translucent cover
Certain corner, so as to effectively deal with the chamfer machining of various different sizes, translucent cover can be avoided to damage；The security protection fills
Put directly to be easily understood by the overcoat of upper folder drum connection drill press spindle, connected mode, easy disassembling, it is not necessary to special training
Instruction, facilitates operating personnel to use.
Present invention employs above-mentioned technical proposal to provide a kind of chamfer drill safety protection device, compensate for prior art not
Foot, it is reasonable in design, it is easy to operate.
Brief description of the drawings
Fig. 1 is a kind of structural representation of chamfer drill safety protection device of the present invention；
Fig. 2 is the present invention a kind of translucent cover and protective cover schematic diagram of chamfer drill safety protection device；
Fig. 3 is a kind of translucent cover of chamfer drill safety protection device of the present invention and the sectional view of protective cover.
Description of reference numerals：Drum is pressed from both sides on 1；2 times folder drums；3 translucent covers；The drill bit of 4 chamfer drills；5 drill press spindles；6 connecting rods；
7 lower nuts；8 top nuts；9th, 10,11,12 folder drum earrings；13 rotating rings；14 determine ring；15 springs；16 openings；17 protective covers.
Embodiment
It is described in further detail with reference to embodiments with accompanying drawing：
Embodiment 1：
As Figure 1-3, a kind of chamfer drill safety protection device, including upper folder drum 1, lower folder drum 2, and translucent cover 3, upper folder drum 1,
The center superposition of lower folder drum 2, upper folder drum 1, lower folder drum 2 by central part and centre extend folder drum earrings 11,12,9,
10 are formed, and upper folder drum 1, the folder drum earrings 11,12,9,10 of lower folder drum 2 are connected by connecting rod 6, and upper folder drum 1 connects drill press spindle
5 overcoat, the center of lower folder drum 2 are provided with rotating ring 13 and determine ring 14, translucent cover 3 are connected on rotating ring 13, the drill bit 4 of chamfer drill passes through
The centre bore of upper folder drum 1, lower folder drum 2, the outside of the drill bit 4 of chamfer drill are provided with translucent cover 3, and the lower end outside of translucent cover 3 is connected with
Protective cover 17, protective cover 17 are the L-type metal material that wall thickness is 2-2.5mm, and translucent cover 3 is transparent plastic plate, and translucent cover 3 has
There is opening, aperture area is the 1/5-1/4 of the surface area of translucent cover 3, and the edge of opening does bound edge processing, and rotating ring 13 leads to ring 14 is determined
Uneven contact is crossed, wherein protuberance arc length is less than recess arc length, has screw thread in connecting rod 6 and is connected with and is connected with
Nut 7 and lower nut 8, screw thread and nut on connecting rod 6 form the arrangement for adjusting height of the lower folder drum 2 of regulation, are cased with connecting rod 6
Spring 15.The safety device can directly connect the overcoat of drill press spindle 5 by upper folder drum 1, and connected mode is easily understood, torn open
Dressing is easy, the aspect of the translucent cover 3 observation drill bit and the relative position of drill bit and workpiece of opening, makes caused iron filings in chamfer process
Can be in time from entering in protective cover 17, protective cover 17 effectively prevents scrap iron from splashing, avoids iron filings etc. from hurting the eye of operator
Eyeball and face, ensure operating personnel's safety, while the hygienic issues of working environment caused by scrap iron from splashing can be reduced；The He of rotating ring 13
Ring 14 is determined by the uneven revolute pair that can be formed corner and be less than 360 °, makes translucent cover that there is certain corner, there can be effect
Pay the chamfer machining of various different sizes.
The surface of protective cover 17 is coated with wear-resistant coating, and wear-resistant coating is made up of following component and parts by weight：It is organic-silicon-modified
Polyester resin 33-42 parts, graphene 1-2 parts, epoxy resin 35-40 parts, phenolic resin 21-25 parts, sodium carboxymethylcellulose 2-4
Part, nano zine oxide 1-2 parts, dimethylbenzene 20-30 parts, isopropanol 3-7 parts, stabilizer 0.1-0.3 parts, graphene is weight resin
0.5-3%.Stabilizer is functional activity polypeptide, and the amino acid sequence of functional activity polypeptide is：
HSHACKLCVCVNAKCYLCRVLHPGKLCVCNCSK, the stabilizer can significantly increase coating each composition in preparation process
Chemically react stablizing effect, reduces the layering of coating so that coating system stable homogeneous, Shelf-life, and be advantageous to be lifted
The salt tolerant fog effect of erosion shield, be advantageous to strengthen antiseptic effect and the anti-corrosion effective time of corrosion-inhibiting coating；By controlling stone
The ratio of black alkene and resin, it can prevent graphene from agglomeration occurs, can be dispersed among resin, improve interface cohesion
Intensity, effectively lift the mechanical property of coating so that the anti-wear performance of the wear-resistant coating is excellent, and intensity hardness is high, protective cover 17
After surface spraying wear-resistant coating chamfering is reduced after baking and curing using the wearability and scratch resistant that can effectively strengthen protective cover 17
Scuffing of the iron filings to fly out to protective cover 17, extending the service life of protective cover 17, the wear-resistant coating film forming and caking property are good,
Coating cracking can be avoided or come off, extend the persistence of coating, and the coating has higher radiating efficiency and heat resistance so that compared with
The iron filings of high-temperature will not produce degraded and infringement to coating, avoid causing the excessive temperature of protective cover 17 from raising, reduce operation
The high temperature injury of personnel, while protective cover 17 is protected, extend its service life.
Embodiment 2：
The operation principle of chamfer drill safety protection device of the present invention is：Apparatus of the present invention connect drill press spindle 5 by upper folder drum 1
Overcoat, make to press from both sides drum 1, the center superposition of lower folder drum 2, upper folder drum 1, lower folder drum 2 extending by central part and centre
Folder drum earrings 11,12,9,10 is formed, and the centre bore passed through for drill bit 4, upper folder drum 1, the folder drum of lower folder drum 2 are formed in central part
Earrings 11,12,9,10 is connected by connecting rod 6, and connecting rod 6 is metallic rod, and spring 15 is cased with connecting rod 6, and spring 15 plays
The effect significantly buffered, impulsive force of the vibration to connecting rod 6 is reduced, the top of connecting rod 6 is screw thread, and screw thread is engaged with top nut
7 and lower nut 8, adjust top nut 7 and lower nut 8 can be with mobile link bar 6, connecting rod 6 drives lower folder drum 2, and lower folder drum 2 drive
Translucent cover 3 moves, and so as to drive the position of translucent cover 3, can be always ensured that translucent cover 3 is in the unsafe position of chamfer drill,
Ensure that safety device plays its corresponding function, translucent cover 3 is transparent plastic plate, and the inside diameter of translucent cover 3 is more than to fall
Angle drill jig diameter, in order to avoid drill jig rotates phase scratching, rotating ring 13 and determine ring 14 and pass through uneven contact, wherein fitting portion
The protuberance arc length divided is less than recess arc length, and rotating ring 13 can rotate in the scope of arc length difference, can make rotating ring 13 and determine ring
14 composition corners are less than 360 ° of revolute pairs, make to connect on rotating ring 13 translucent cover 3 has certain corner, can effectively deal with respectively
The chamfer machining of kind different size, the lower end outside of translucent cover 3 are connected with protective cover 17 so that protective cover 17 can be with translucent cover 3
Rotation and rotate, protective cover is the L-type metal material that wall thickness is 2-2.5mm, protective cover 17 can by iron filings caused by chamfering with
It is outside completely isolated, scrap iron from splashing is effectively prevented, avoids iron filings etc. from hurting the eyes and face of operator, ensures operating personnel
Safety, can fundamentally prevent the indrawn danger of hair or clothes brought due to bit to operator, it is ensured that behaviour
Author keeps the safety in production, and can reduce the hygienic issues of working environment caused by scrap iron from splashing, it is ensured that working environment it is clean and tidy, reduce not
Necessary potential safety hazard.
The chamfering that the chamfer drill safety protection device of the present invention can be applied to after the drilling such as brake disc, boss, shaped piece.
The prior art of routine techniques dawn known to those skilled in the art in above-described embodiment 1-2, do not make herein in detail
Thin narration.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, the ordinary skill people of this area
Member, without departing from the spirit and scope of the present invention, it can also make a variety of changes and modification.Therefore, it is all equivalent
Technical scheme fall within scope of the invention, scope of patent protection of the invention should be defined by the claims.
SEQUENCE LISTING
<110>Sea salt sends Mortopl Science and Technology Ltd.
<120>A kind of chamfer drill safety protection device
<130> 1
<160> 1
<170> PatentIn version 3.5
<210> 1
<211> 33
<212> PRT
<213>It is artificial synthesized
<400> 1
His Ser His Ala Cys Lys Leu Cys Val Cys Val Asn Ala Lys Cys Tyr
1 5 10 15
Leu Cys Arg Val Leu His Pro Gly Lys Leu Cys Val Cys Asn Cys Ser
20 25 30
Lys
Claims (7)
1. a kind of chamfer drill safety protection device, including upper folder drum（1）, lower folder drum（2）, and translucent cover（3）, it is characterised in that：
The upper folder drum（1）, it is lower folder drum（2）Center superposition, it is upper folder drum（1）, it is lower folder drum（2）By prolonging for central part and centre
Stretch out folder drum earrings（11）、（12）、（9）、（10）Form, upper folder drum（1）, it is lower folder drum（2）Folder drum earrings（11）、（12）、
（9）、（10）Pass through connecting rod（6）Connection, upper folder drum（1）Connect drill press spindle（5）Overcoat, it is lower folder drum（2）Center be provided with
Rotating ring（13）With determine ring（14）, rotating ring（13）Upper connection translucent cover（3）, the drill bit of chamfer drill（4）Through upper folder drum（1）, lower folder
Drum（2）Centre bore, the drill bit of chamfer drill（4）Outside be provided with translucent cover（3）.
A kind of 2. chamfer drill safety protection device according to claim 1, it is characterised in that：The translucent cover（3）Lower end
Outside is connected with protective cover（17）, protective cover（17）The L-type metal material for being 2-2.5mm for wall thickness.
A kind of 3. chamfer drill safety protection device according to claim 2, it is characterised in that：The protective cover（17）Surface
Coated with wear-resistant coating, the wear-resistant coating is made up of following component and parts by weight：Silicone modified polyester resin 33-42 parts,
Graphene 1-2 parts, epoxy resin 35-40 parts, phenolic resin 21-25 parts, sodium carboxymethylcellulose 2-4 parts, nano zine oxide 1-2
Part, dimethylbenzene 20-30 parts, isopropanol 3-7 parts, stabilizer 0.1-0.3 parts, graphene are the 0.5-3% of weight resin.
A kind of 4. chamfer drill safety protection device according to claim 1, it is characterised in that：The translucent cover（3）To be saturating
Bright plastic plate, translucent cover（3）With opening, aperture area is translucent cover（3）The 1/5-1/4 of surface area, the edge of opening are done
Bound edge processing.
A kind of 5. chamfer drill safety protection device according to claim 1, it is characterised in that：The rotating ring（13）With determine ring
（14）By uneven contact, wherein protuberance arc length is less than recess arc length.
A kind of 6. chamfer drill safety protection device according to claim 1, it is characterised in that：The connecting rod（6）On have
Screw thread is simultaneously connected with top nut（7）And lower nut（8）, connecting rod（6）On screw thread and nut form the lower folder drum of regulation（2）Height
Adjusting means.
A kind of 7. chamfer drill safety protection device according to claim 1, it is characterised in that：The connecting rod（6）Upper set
There is spring（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597596.1A CN107570767A (en) | 2017-07-21 | 2017-07-21 | A kind of chamfer drill safety protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710597596.1A CN107570767A (en) | 2017-07-21 | 2017-07-21 | A kind of chamfer drill safety protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107570767A true CN107570767A (en) | 2018-01-12 |
Family
ID=61049754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710597596.1A Pending CN107570767A (en) | 2017-07-21 | 2017-07-21 | A kind of chamfer drill safety protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107570767A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571301A (en) * | 2020-06-10 | 2020-08-25 | 惠州市鑫惠丰金属制品有限公司 | Blade protective cover of metal cutting machine |
| CN113333816A (en) * | 2021-06-18 | 2021-09-03 | 瑞安金慈精密工具有限公司 | Drill bit with automatic chip removal function |
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|---|---|---|---|---|
| CN201803096U (en) * | 2010-08-02 | 2011-04-20 | 上海汇众汽车制造有限公司 | Chamfer drill safety protection device |
| CN103254701A (en) * | 2013-05-02 | 2013-08-21 | 南京科孚纳米技术有限公司 | Novel anti-corrosion, anti-ultraviolet, anti-bacteria and wear-resistant paint and preparation method for same |
| CN204207807U (en) * | 2014-09-25 | 2015-03-18 | 天津丰翼医疗器械有限公司 | A kind of bone bits anti-splashing bone drill |
| CN105315970A (en) * | 2015-11-16 | 2016-02-10 | 华中科技大学 | Thermal interface material for chip testing and preparation method of thermal interface material |
| US20160067795A1 (en) * | 2014-09-09 | 2016-03-10 | The Boeing Company | Apparatuses and Methods for Cutting a Reverse Spot-Face in a Workpiece |
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2017
- 2017-07-21 CN CN201710597596.1A patent/CN107570767A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201803096U (en) * | 2010-08-02 | 2011-04-20 | 上海汇众汽车制造有限公司 | Chamfer drill safety protection device |
| CN103254701A (en) * | 2013-05-02 | 2013-08-21 | 南京科孚纳米技术有限公司 | Novel anti-corrosion, anti-ultraviolet, anti-bacteria and wear-resistant paint and preparation method for same |
| US20160067795A1 (en) * | 2014-09-09 | 2016-03-10 | The Boeing Company | Apparatuses and Methods for Cutting a Reverse Spot-Face in a Workpiece |
| CN204207807U (en) * | 2014-09-25 | 2015-03-18 | 天津丰翼医疗器械有限公司 | A kind of bone bits anti-splashing bone drill |
| CN105315970A (en) * | 2015-11-16 | 2016-02-10 | 华中科技大学 | Thermal interface material for chip testing and preparation method of thermal interface material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111571301A (en) * | 2020-06-10 | 2020-08-25 | 惠州市鑫惠丰金属制品有限公司 | Blade protective cover of metal cutting machine |
| CN113333816A (en) * | 2021-06-18 | 2021-09-03 | 瑞安金慈精密工具有限公司 | Drill bit with automatic chip removal function |
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Application publication date: 20180112 |