CN209532210U - A kind of drill bit of adjustable drilling diameter - Google Patents
A kind of drill bit of adjustable drilling diameter Download PDFInfo
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- CN209532210U CN209532210U CN201920052123.8U CN201920052123U CN209532210U CN 209532210 U CN209532210 U CN 209532210U CN 201920052123 U CN201920052123 U CN 201920052123U CN 209532210 U CN209532210 U CN 209532210U
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Abstract
The utility model provides a kind of drill bit of adjustable drilling diameter, including connecting rod, fixed link, connector sleeve, drill bit are adjusted burr and remove frame structure, can protective buffering support frame structure, can buffer tool holding rack structure, adjust bolt, protective jacket installs bolt, connecting tube, connecting rod, fixing bolt, lock-screw and sealing shroud, the fixed link are embedded in the lower part of connecting rod；The connector sleeve is socketed in the lower part of fixed link；The drill bit is plugged on the lower part of connector sleeve；The lower part at left and right sides of fixed link is arranged in the adjustable burr removal frame structural base.The setting of the utility model protective block, fender rod, shaft, fastening bolt, support rod and scraper is conducive to be removed the burr on workpiece；The setting of protective plate, mounting blocks, mounting rod, link block, protective sheet, buffer spring, installation sheet and mounting hole is conducive to carry out installation fixation to drill bit.
Description
Technical field
The utility model belongs to bit technique field more particularly to a kind of drill bit of adjustable drilling diameter.
Background technique
Cutter in machinery field for hole machined includes drill bit, reamer, boring cutter, reamer and inner surface broaching tool etc..Often
Drill bit mainly has fluted drill, counterbit, centre drill, depth drill and core drill, and wherein fluted drill is most widely used hole machined
Cutter.Fluted drill is mainly made of working portion and shank.Working portion has two spiral grooves, is similar to fried dough twist, thus
It gains the name.General fluted drill high speed steel making.
China Patent Publication No. is CN207952728U, and invention and created name is a kind of drill bit, the drill bit include neck,
Head and end, the head are located at the front end of the neck, and the end is located at the neck rear end, the head diameter
Greater than the recess diameter, it is equipped with positive corner portion in the neck and the end junction, in the neck and the head
Junction be formed with instead corner, this instead corner be equipped with a groove.But there is also inconveniences to work for existing drill bit
Burr on part is removed, it has not been convenient to the problem of installation is fixed and spare drill bit is fixed in inconvenience.
Therefore, the drill bit for inventing a kind of adjustable drilling diameter is very necessary.
Utility model content
In order to solve the above-mentioned technical problem, the utility model provides a kind of drill bit of adjustable drilling diameter, existing to solve
Drill bit inconvenience the burr on workpiece is removed, it has not been convenient to installation is fixed and inconvenient spare drill bit is fixed
Problem.A kind of drill bit of adjustable drilling diameter, including connecting rod, fixed link, connector sleeve, drill bit are adjusted burr and remove frame knot
Structure, can protective buffering support frame structure, can buffer tool holding rack structure, adjust bolt, protective jacket installs bolt, connecting tube,
Connecting rod, fixing bolt, lock-screw and sealing shroud, the fixed link are embedded in the lower part of connecting rod；The connector sleeve set
It connects in the lower part of fixed link；The drill bit is plugged on the lower part of connector sleeve；The adjustable burr removes frame structural base
Lower part at left and right sides of fixed link is set；It is described can protective buffering support frame structure be mounted on the interposition on the right side of connecting rod
It sets；The middle position for buffering tool holding rack structure and being mounted on connecting rod front surface lower part；The adjusting bolt
It is threaded in the junction of connector sleeve and drill bit；The protective jacket is socketed in the top of connection rod outer surface；The peace
Dress bolt thread is connected to the junction of connecting rod and protective jacket；The connecting tube is embedded in the left side of protective jacket upper surface；
Right side of the connecting rod transverse splicing inside connecting tube；The fixing bolt is threaded in the company of connecting tube and connecting rod
Meet place；The lock-screw is threaded in the junction of connecting rod and sealing shroud；The sealing shroud is socketed in connecting rod appearance
The right side in face；The described adjustable burr removal frame structure includes protective block, fender rod, shaft, fastening bolt, support rod and is scraped
Knife, the fender rod are connected to the middle position of protective block front surface by shaft；The fastening bolt is threaded in
The junction of protective block and shaft；The support rod is bolted to the left side of fender rod；The scraper screw is connected to
The lower left quarter of support rod.
Preferably, the internal diameter of the connector sleeve is set as 12 millimeters to 16 millimeters；The inside of the connector sleeve
It is inlaid with the rubber layer with a thickness of two millimeters to four millimeters；The connector sleeve specifically uses stainless steel sleeve.
Preferably, the sealing shroud specifically uses rubber sleeve；The wall thickness of the sealing shroud is set as two millimeters to four
Millimeter.
Preferably, the junction of the protective block and shaft is provided with rubber ring；The rubber ring is embedded in shaft
Outer wall on；The diameter of the shaft is set as 12 millimeters to 14 millimeters.
Preferably, the support rod specifically uses the stainless steel of arc；The diameter of the support rod is set as ten
Two millimeters to 14 millimeters.
Preferably, it is described can protective buffering support frame structure include protective plate, mounting blocks, mounting rod, link block, protection
Piece, buffer spring, installation sheet and mounting hole, the mounting blocks are bolted the middle position on the right side of protective plate；The installation
Bar axis connects in the middle position of protective plate front surface；The link block is glued to the right side of mounting blocks upper surface；Described is anti-
Bluff piece is bolted to the top of link block；Described buffer spring one end is welded on the right side of mounting rod upper surface, other end weldering
Connect the right side in protective sheet bottom；The protective sheet is welded on the right side of protective sheet bottom；The installation sheet is bolted
On the right side of mounting rod；The mounting hole is provided with the middle position of installation sheet front surface upper right quarter.
Preferably, the diameter of the buffer spring is set as ten millimeters to 12 millimeters；The buffer spring specifically uses
Stainless steel spring；The outer surface of the buffer spring is inlaid with the PVC plastic bed of material.
Preferably, the diameter of the mounting hole is set as four millimeters to six millimeters；The innermost insert of the mounting hole
There is rubber layer.
Preferably, the tool holding rack structure that buffers includes installing pipe, through-hole, protective pad, inserted link, holding rod, folder
Plate, damping spring, connects bolt and grip block, the through-hole are provided with the lower inside of installing pipe；The protective pad is glued
In the inside upper part of installing pipe；The inserted link is plugged on the lower part for including installing pipe inside left；The holding rod is embedded in slotting
The left side of bar；The clamping plate is bolted to the right side of inserted link；The damping spring is socketed in the interposition of inserted link outer surface
It sets；Described damping spring one end is welded on the right side of holding rod, and the other end is welded on the left side of clamping plate；The connection bolt thread
The lower right side being connected to inside installing pipe；The grip block is embedded in the left side of connection bolt.
Preferably, the thickness of the protective pad is set as two millimeters to four millimeters；The protective pad specifically uses rubber
Rubber mat.
Preferably, the damping spring specifically uses the stainless steel spring of "-" type；The top of the damping spring and subtract
The lower part of shake spring is glued respectively has diameter for four millimeters to six millimeters of stainless steel ring；It inlays the outer surface of the stainless steel ring
There is rubber layer.
Preferably, the protective block and connector sleeve are bolted setting.
Preferably, the protective plate connect setting with connecting-rod bolt.
Preferably, the installing pipe connect setting with connecting-rod bolt.
Preferably, the drill bit specifically uses 4241 material hexagonal handle step drills.
Compared with prior art, the utility model has the following beneficial effects:
1. in the utility model, the protective block, fender rod, shaft, fastening bolt, the setting of support rod and scraper,
Be conducive to be removed the burr on workpiece.
2. in the utility model, the protective plate, mounting blocks, mounting rod, link block, protective sheet, buffer spring, installation sheet
With the setting of mounting hole, be conducive to carry out installation fixation to drill bit.
3. in the utility model, the installing pipe, through-hole, protective pad, inserted link, holding rod, clamping plate, damping spring, connection spiral shell
The setting of bolt and grip block is conducive to clamp spare drill bit.
4. in the utility model, the internal diameter of the connector sleeve is set as 12 millimeters to 16 millimeters；The connection
The innermost insert of set has the rubber layer with a thickness of two millimeters to four millimeters；The connector sleeve specifically uses stainless steel sleeve, favorably
In preventing connector sleeve from getting rusty damage.
5. in the utility model, the junction of the protective block and shaft is provided with rubber ring；The rubber ring edge
On the outer wall of shaft；The diameter of the shaft is set as 12 millimeters to 14 millimeters, is beneficial to prevent shaft abrasion.
6. in the utility model, the support rod specifically uses the stainless steel of arc；The diameter of the support rod
12 millimeters to 14 millimeters are set as, support rod is beneficial to prevent and gets rusty damage.
7. in the utility model, the diameter of the buffer spring is set as ten millimeters to 12 millimeters；The buffer spring
Specifically use stainless steel spring；The outer surface of the buffer spring is inlaid with the PVC plastic bed of material, be beneficial to prevent buffer spring get rusty it is disconnected
It splits.
8. in the utility model, the diameter of the mounting hole is set as four millimeters to six millimeters；The mounting hole
Innermost insert has rubber layer, is conducive to increase the compactness between drill bit and drilling machine.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the adjustable burr removal frame structure of the utility model.
Fig. 3 be the utility model can protective buffering support frame structure structural schematic diagram.
Fig. 4 is the structural schematic diagram for buffering tool holding rack structure of the utility model.
In figure:
1, connecting rod；2, fixed link；3, connector sleeve；4, drill bit；5, burr is adjusted and removes frame structure；51, protective block；
52, fender rod；53, shaft；54, fastening bolt；55, support rod；56, scraper；It 6, can protective buffering support frame structure；61, prevent
Backplate；62, mounting blocks；63, mounting rod；64, link block；65, protective sheet；66, buffer spring；67, installation sheet；68, mounting hole；7,
Tool holding rack structure can be buffered；71, installing pipe；72, through-hole；73, protective pad；74, inserted link；75, holding rod；76, clamping plate；77,
Damping spring；78, bolt is connected；79, grip block；8, bolt is adjusted；9, protective jacket；10, bolt is installed；11, connecting tube；12, even
Bar；13, fixing bolt；14, lock-screw；15, sealing shroud.
Specific embodiment
The utility model is described further below in conjunction with attached drawing:
Embodiment:
As shown in attached drawing 1 to attached drawing 4
The utility model provides a kind of drill bit of adjustable drilling diameter, including connecting rod 1, fixed link 2, connector sleeve 3, drill bit
4, burr is adjusted and removes frame structure 5, can protective buffering support frame structure 6, can buffer tool holding rack structure 7, adjust bolt
8, protective jacket 9 installs bolt 10, connecting tube 11, connecting rod 12, fixing bolt 13, lock-screw 14 and sealing shroud 15, and described consolidates
Fixed pole 2 is embedded in the lower part of connecting rod 1；The connector sleeve 3 is socketed in the lower part of fixed link 2；4 company of being plugged on of drill bit
The lower part of female connector 3；The lower part of 2 left and right sides of fixed link is arranged in adjustable burr removal 5 bottom of frame structure；Described
Can protective buffering support frame structure 6 be mounted on the middle position on the right side of connecting rod 1；Described buffers tool holding rack structure 7
It is mounted on the middle position of 1 front surface lower part of connecting rod；The adjusting bolt 8 is threaded in the company of connector sleeve 3 and drill bit 4
Meet place；The protective jacket 9 is socketed in the top of 1 outer surface of connecting rod；The installation bolt 10 is threaded in connecting rod 1
With the junction of protective jacket 9；The connecting tube 11 is embedded in the left side of 9 upper surface of protective jacket；The connecting rod 12 is laterally inserted
Connect the right side inside connecting tube 11；The fixing bolt 13 is threaded in the junction of connecting tube 11 and connecting rod 12；Institute
The lock-screw 14 stated is threaded in the junction of connecting rod 12 and sealing shroud 15；The sealing shroud 15 is socketed in outside connecting rod 12
The right side on surface；The adjustable burr removal frame structure 5 includes protective block 51, fender rod 52, shaft 53, fastening bolt
54, support rod 55 and scraper 56, the fender rod 52 are connected to the middle position of 51 front surface of protective block by shaft 53；Institute
The fastening bolt 54 stated is threaded in the junction of protective block 51 and shaft 53；The support rod 55 is bolted to protection
The left side of bar 52；56 screw of scraper is connected to the lower left quarter of support rod 55.
In above-described embodiment, specifically, the internal diameter of the connector sleeve 3 is set as 12 millimeters to 16 millimeters；It is described
The innermost insert of connector sleeve 3 have the rubber layer with a thickness of two millimeters to four millimeters；The connector sleeve 3 specifically uses stainless steel
Set.
In above-described embodiment, specifically, the sealing shroud 15 specifically uses rubber sleeve；The wall thickness of the sealing shroud 15
It is set as two millimeters to four millimeters.
In above-described embodiment, specifically, the junction of the protective block 51 and shaft 53 is provided with rubber ring；Described
Rubber ring is embedded on the outer wall of shaft 53；The diameter of the shaft 53 is set as 12 millimeters to 14 millimeters.
In above-described embodiment, specifically, the support rod 55 specifically uses the stainless steel of arc；The support rod
55 diameter is set as 12 millimeters to 14 millimeters.
In above-described embodiment, specifically, it is described can protective buffering support frame structure 6 include protective plate 61, mounting blocks 62,
Mounting rod 63, link block 64, protective sheet 65, buffer spring 66, installation sheet 67 and mounting hole 68, the mounting blocks 62 are bolted
The middle position on 61 right side of protective plate；63 axis of mounting rod connects in the middle position of 61 front surface of protective plate；The company
Connect the right side that block 64 is glued to 62 upper surface of mounting blocks；The protective sheet 65 is bolted to the top of link block 64；It is described
66 one end of buffer spring be welded on the right side of 63 upper surface of mounting rod, the other end is welded on the right side of 65 bottom of protective sheet；It is described
Protective sheet 65 be welded on the right side of 65 bottom of protective sheet；The installation sheet 67 is bolted to the right side of mounting rod 63；Institute
The mounting hole 68 stated is provided with the middle position of 67 front surface upper right quarter of installation sheet.
In above-described embodiment, specifically, the diameter of the buffer spring 66 is set as ten millimeters to 12 millimeters；Described
Buffer spring 66 specifically uses stainless steel spring；The outer surface of the buffer spring 66 is inlaid with the PVC plastic bed of material.
In above-described embodiment, specifically, the diameter of the mounting hole 68 is set as four millimeters to six millimeters；The peace
The innermost insert in dress hole 68 has rubber layer.
In above-described embodiment, specifically, the tool holding rack structure 7 that buffers includes installing pipe 71, through-hole 72 is prevented
Protection pad 73, inserted link 74, holding rod 75, clamping plate 76, damping spring 77, connects bolt 78 and grip block 79, the through-hole 72 are provided with
The lower inside of installing pipe 71；The protective pad 73 is glued to the inside upper part of installing pipe 71；The inserted link 74 is plugged on
Include the lower part of 71 inside left of installing pipe；The holding rod 75 is embedded in the left side of inserted link 74；The clamping plate 76 is bolted
On the right side of inserted link 74；The damping spring 77 is socketed in the middle position of 74 outer surface of inserted link；Described 77 one end of damping spring
It is welded on the right side of holding rod 75, the other end is welded on the left side of clamping plate 76；The connection bolt 78 is threaded in installing pipe
Lower right side inside 71；The grip block 79 is embedded in the left side of connection bolt 78.
In above-described embodiment, specifically, the thickness of the protective pad 73 is set as two millimeters to four millimeters；Described is anti-
Protection pad 73 specifically uses rubber pad.
In above-described embodiment, specifically, the damping spring 77 specifically uses the stainless steel spring of "-" type；Described subtracts
The lower part on the top and damping spring 77 that shake spring 77 is glued respectively has diameter for four millimeters to six millimeters of stainless steel ring；It is described not
The outer surface of rust steel loop is inlaid with rubber layer.
In above-described embodiment, specifically, the protective block 51 and connector sleeve 3 are bolted setting.
In above-described embodiment, specifically, the protective plate 61 and connecting rod 1 are bolted setting.
In above-described embodiment, specifically, the installing pipe 71 and connecting rod 1 are bolted setting.
In above-described embodiment, specifically, the drill bit 4 specifically uses 4241 material hexagonal handle step drills.
Working principle
When the utility model is used, protective jacket 9 is fixed on drilling machine first, then utilizes the clamping tool on drilling machine
Drill bit 4 can be carried out using drill bit 4 can be added by then passing through mounting hole 68 using bolt by being clamped to drill bit 4
It is strong fixed, buffer protection can be played the role of to drill bit 4 using buffer spring 66, unclamping adjusting bolt 8 can be according to work people
For the different diameters to drill bit 4 of the needs of member into adjusting, locking adjusts bolt 8 after adjusting, sharp during drilling
The burr on workpiece can be removed with scraper 56, unclamping the adjusting fender rod 52 of fastening bolt 54 can be to the angle of scraper 56
Degree is adjusted, and fastening bolt 54 is locked after adjusting, holds holding rod 75 and inserted link 74 is pulled to drive clamping plate 76 outward
It is mobile, while damping spring 77 is shunk, and spare drill bit 4 is inserted into installing pipe 71 by through-hole 72 then, then unclamps and holds
Bar 75, then damping spring 77 drives clamping plate 76 to reset, and then clamping plate 76 cooperates grip block 79 that can press from both sides to spare drill bit 4
It holds.
Using technical solution described in the utility model or those skilled in the art in technical solutions of the utility model
Under inspiration, similar technical solution is designed, and reaches above-mentioned technical effect, is the protection model for falling into the utility model
It encloses.
Claims (10)
1. a kind of drill bit of adjustable drilling diameter, which is characterized in that the drill bit of the adjustable drilling diameter includes connecting rod (1), Gu
Fixed pole (2), connector sleeve (3), drill bit (4), be adjusted burr removal frame structure (5), can protective buffering support frame structure (6), can
It buffers tool holding rack structure (7), adjusts bolt (8), protective jacket (9), install bolt (10), connecting tube (11), connecting rod (12),
Fixing bolt (13), lock-screw (14) and sealing shroud (15), the fixed link (2) are embedded in the lower part of connecting rod (1)；Institute
The connector sleeve (3) stated is socketed in the lower part of fixed link (2)；The drill bit (4) is plugged on the lower part of connector sleeve (3)；Described
The lower part that adjustable burr removal frame structure (5) bottom is arranged at left and right sides of fixed link (2)；Described can protective buffering support
Frame structure (6) is mounted on the middle position on the right side of connecting rod (1)；Described buffers tool holding rack structure (7) company of being mounted on
The middle position of extension bar (1) front surface lower part；The adjusting bolt (8) is threaded in the company of connector sleeve (3) and drill bit (4)
Meet place；The protective jacket (9) is socketed in the top of connecting rod (1) outer surface；The installation bolt (10) is threaded in
The junction of connecting rod (1) and protective jacket (9)；The connecting tube (11) is embedded in the left side of protective jacket (9) upper surface；It is described
Connecting rod (12) the transverse splicing right side internal in connecting tube (11)；The fixing bolt (13) is threaded in connecting tube
(11) and the junction of connecting rod (12)；The lock-screw (14) is threaded in the connection of connecting rod (12) and sealing shroud (15)
Place；The sealing shroud (15) is socketed in the right side of connecting rod (12) outer surface；Adjustable burr removal frame structure (5) packet
It includes protective block (51), fender rod (52), shaft (53), fastening bolt (54), support rod (55) and scraper (56), the protection
Bar (52) is connected to the middle position of protective block (51) front surface by shaft (53)；The fastening bolt (54) is threadedly coupled
In the junction of protective block (51) and shaft (53)；The support rod (55) is bolted to the left side of fender rod (52)；Institute
Scraper (56) screw stated is connected to the lower left quarter of support rod (55).
2. the drill bit of adjustable drilling diameter as described in claim 1, which is characterized in that the internal diameter of the connector sleeve (3) is set
It is set to 12 millimeters to 16 millimeters；The innermost insert of the connector sleeve (3) has the rubber with a thickness of two millimeters to four millimeters
Layer；The connector sleeve (3) specifically uses stainless steel sleeve.
3. the drill bit of adjustable drilling diameter as described in claim 1, which is characterized in that the sealing shroud (15) specifically uses
Rubber sleeve；The wall thickness of the sealing shroud (15) is set as two millimeters to four millimeters.
4. the drill bit of adjustable drilling diameter as described in claim 1, which is characterized in that the protective block (51) and shaft
(53) junction is provided with rubber ring；The rubber ring is embedded on the outer wall of shaft (53)；The shaft (53)
Diameter is set as 12 millimeters to 14 millimeters.
5. the drill bit of adjustable drilling diameter as described in claim 1, which is characterized in that the support rod (55) specifically uses
The stainless steel of arc；The diameter of the support rod (55) is set as 12 millimeters to 14 millimeters.
6. the drill bit of adjustable drilling diameter as described in claim 1, which is characterized in that described can protective buffering support frame knot
Structure (6) includes protective plate (61), mounting blocks (62), mounting rod (63), link block (64), protective sheet (65), buffer spring (66), peace
Load (67) and mounting hole (68), the mounting blocks (62) are bolted the middle position on the right side of protective plate (61)；Described
Mounting rod (63) axis connects in the middle position of protective plate (61) front surface；The link block (64) is glued on mounting blocks (62)
The right side on surface；The protective sheet (65) is bolted to the top of link block (64)；Buffer spring (66) one end weldering
The right side in mounting rod (63) upper surface is connect, the other end is welded on the right side of protective sheet (65) bottom；The protective sheet (65)
It is welded on the right side of protective sheet (65) bottom；The installation sheet (67) is bolted to the right side of mounting rod (63)；Described
Mounting hole (68) is provided with the middle position of installation sheet (67) front surface upper right quarter.
7. the drill bit of adjustable drilling diameter as claimed in claim 6, which is characterized in that the diameter of the buffer spring (66) is set
It is set to ten millimeters to 12 millimeters；The buffer spring (66) specifically uses stainless steel spring；Outside the buffer spring (66)
Surface inserting has the PVC plastic bed of material.
8. the drill bit of adjustable drilling diameter as claimed in claim 6, which is characterized in that the diameter of the mounting hole (68) is set
It is set to four millimeters to six millimeters；The innermost insert of the mounting hole (68) has rubber layer.
9. the drill bit of adjustable drilling diameter as described in claim 1, which is characterized in that described buffers tool holding rack knot
Structure (7) includes installing pipe (71), through-hole (72), protective pad (73), inserted link (74), holding rod (75), clamping plate (76), damping spring
(77), bolt (78) are connected and grip block (79), the through-hole (72) is provided with the lower inside of installing pipe (71)；Described
Protective pad (73) is glued to the inside upper part of installing pipe (71)；The inserted link (74), which is plugged on, includes installing pipe (71) inside left
Lower part；The holding rod (75) is embedded in the left side of inserted link (74)；The clamping plate (76) is bolted to inserted link (74)
Right side；The damping spring (77) is socketed in the middle position of inserted link (74) outer surface；Damping spring (77) one end welding
On the right side of holding rod (75), the other end is welded on the left side of clamping plate (76)；The connection bolt (78) is threaded in installation
Manage (71) internal lower right side；The grip block (79) is embedded in the left side of connection bolt (78).
10. the drill bit of adjustable drilling diameter as claimed in claim 9, which is characterized in that the thickness of the protective pad (73)
It is set as two millimeters to four millimeters；The protective pad (73) specifically uses rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920052123.8U CN209532210U (en) | 2019-01-14 | 2019-01-14 | A kind of drill bit of adjustable drilling diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920052123.8U CN209532210U (en) | 2019-01-14 | 2019-01-14 | A kind of drill bit of adjustable drilling diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209532210U true CN209532210U (en) | 2019-10-25 |
Family
ID=68269364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920052123.8U Active CN209532210U (en) | 2019-01-14 | 2019-01-14 | A kind of drill bit of adjustable drilling diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209532210U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842258A (en) * | 2019-11-18 | 2020-02-28 | 中国空气动力研究与发展中心高速空气动力研究所 | Method for adjusting cutting diameter of drill bit |
-
2019
- 2019-01-14 CN CN201920052123.8U patent/CN209532210U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842258A (en) * | 2019-11-18 | 2020-02-28 | 中国空气动力研究与发展中心高速空气动力研究所 | Method for adjusting cutting diameter of drill bit |
| CN110842258B (en) * | 2019-11-18 | 2020-11-17 | 中国空气动力研究与发展中心高速空气动力研究所 | Method for adjusting cutting diameter of drill bit |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300000 Tianjin District of Beichen city science and Technology Park (Yixing port) Huasheng No. 41 Patentee after: Enshengde (Tianjin) precision tools Co., Ltd Address before: 300000 Tianjin District of Beichen city science and Technology Park (Yixing port) Huasheng No. 41 Patentee before: Enshengde (Tianjin) Precision Tools Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |