CN206882873U - A kind of milling cutter for cutting groove - Google Patents
A kind of milling cutter for cutting groove Download PDFInfo
- Publication number
- CN206882873U CN206882873U CN201720489106.1U CN201720489106U CN206882873U CN 206882873 U CN206882873 U CN 206882873U CN 201720489106 U CN201720489106 U CN 201720489106U CN 206882873 U CN206882873 U CN 206882873U
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- Prior art keywords
- cutter
- cutter hub
- screw
- radial direction
- axial
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Abstract
The utility model discloses a kind of in the milling cutter to cut groove, including cutter hub, it is arranged at least one set of knife group of cutter hub outer wall, the knife group includes at least a piece of cutting blade, and the knife group also includes the cutter holder for being removably connected to cutter hub, and the cutting blade is fixedly connected on cutter holder.The cutter holder is connected to cutter hub along cutter hub axial slip, and the cutter holder is provided with waist-shaped hole, and the waist-shaped hole is equipped with the lock screw for being threadedly connected to cutter hub.The utility model, which provides, to be changed corresponding cutter holder, improve remediation efficiency and reduce a kind of milling cutter for cutting groove of production cost.
Description
Technical field
It the utility model is related to cutting tool, more particularly to a kind of milling cutter for cutting groove.
Background technology
During the engine cylinder-body manufacturing, in order to assemble other parts, it is necessary to be cut inside engine cylinder-body
Some necessary grooves, in these grooves of machining, it typically can all use and arrive milling cutter.
Milling cutter generally comprises cylindrical main body, the cutting blade being distributed on main body circumference, and cutting blade is answered for diamond
Piece is closed, and cutting blade is welded in main body, in order to cut groove, the cantilevered length of cutting blade is general all larger,
Cantilevered length then refers to the distance between cutting blade outermost end and body outer wall, and the cylinder body of engine has certain depth, institute
Milling cutter can also be had certain length in its axial direction with whole, while again because inner chamber of cylinder block being relatively large in diameter, then in order to
Inner chamber of cylinder block is enough matched, the diameter of main body also can correspondingly be increased, when machine tool chief axis, which drives main body to do, to be rotated at a high speed, can be produced
Raw larger centrifugal force, and cutting blade can be by larger frictional resistance, so easily occurring in main body high-speed rotation
Break, now then need to disassemble whole main body again to cutting blade progress Repair gene, then can influence processing efficiency.
Utility model content
The purpose of this utility model is to provide a kind of milling cutter for cutting groove, and can be incited somebody to action after cutting blade is damaged
Corresponding cutter holder is changed, and improves remediation efficiency.
Above-mentioned technical purpose of the present utility model technical scheme is that：One kind is used to cut groove
Milling cutter, including cutter hub, at least one set of knife group for being arranged at cutter hub outer wall, the knife group includes at least a piece of cutting blade, described
Knife group also includes the cutter holder for being removably connected to cutter hub, and the cutting blade is fixedly connected on cutter holder；The cutter holder is axial along cutter hub
Sliding is connected to cutter hub, and the cutter holder is provided with waist-shaped hole, and the waist-shaped hole is equipped with the lock screw for being threadedly connected to cutter hub；Institute
State cutter hub and be provided with mechanism for axial adjusting, the mechanism for axial adjusting includes being connected to cutter hub along perpendicular to the sliding of cutter hub axial direction
Axial voussoir, the screw that axially fastens that is connected between axial voussoir and cutter hub, the cutter holder is provided with and axial voussoir matches
The axial movement inclined-plane of conjunction.
By using above-mentioned technical proposal, in working angles, if after cutting blade is damaged, can be by the cutting blade
Corresponding cutter holder disassembles from cutter hub, directly first changes a new cutter holder, so that with regard to that can continue to produce, in shortening
Between the process repaired, compare the whole new milling cutter of directly matching one and match new cutter holder and reduce cost, and be also convenient for pair
The cutting blade damaged carries out Repair gene, reduces maintenance cost, improves the efficiency of whole process.Because in milling
It needs to be determined that the relative position of cutting blade and institute's converted products in the process of knife, so as to lift the precision of processing, and one
After cutter holder and cutter hub realization are detachably connected by denier, cutter holder can produce alignment error after cutter hub is ressembled, so
Cutter holder is entered line slip along the axial direction of cutter hub, so that just the position of cutter holder can be adjusted, and with lock screw come
The position of cutter holder is determined, lifts the precision of processing, and keeps the uniformity of product processing quality.When the axial wedge of movement
During block, the axial voussoir inclined-plane of itself will apply a thrust to the axial movement inclined-plane on cutter holder, so as to utilize inclined-plane
Effect, and by the displacement of the Displacement transfer of axial voussoir to cutter holder, and then realize fine setting of the cutter holder on cutter hub axial direction.
The utility model is further arranged to：The screw threaded one end that axially fastens is connected to cutter hub and other end one
The axial direction promotion screw for being threadedly connected to axial voussoir is formed, it is described axially to promote screw to have reversely with screw is axially fastened
Screw thread.
By using above-mentioned technical proposal, promote screw by the axial direction with reverse thread and axially fasten screw, when
When rotating axial fastening screw, set using anti-tooth, axial voussoir will produce movement, to knife in axial voussoir moving process
Press from both sides the effect of applying power and the position of cutter holder is adjusted, and make by the threaded function of screw and cutter holder is axially promoted
Random movement will not occur after the adjustment is completed for cutter holder, it is determined that the position of cutter holder keeps constant, improves the precision of processing.
The utility model is further arranged to：The cutter holder is connected to cutter hub along cutter hub radial slippage, and the cutter hub is provided with
Radial direction adjustment mechanism, the radial direction adjustment mechanism are included along the radial direction wedge that cutter hub is connected to perpendicular to the sliding of the direction of cutter hub radial direction
Block, the radial direction fastening screw being connected between radial direction voussoir and cutter hub, the cutter holder are provided with the radial direction being engaged with radial direction voussoir
Mobile inclined-plane.
By using above-mentioned technical proposal, position of the cutter holder in cutter hub radially can be adjusted, so as to carry
The installation accuracy of cutting blade is risen, also depth can adjust the position of cutter holder in cutter hub radially according to needed for actual groove,
Inconsistent relation between inclined-plane is moved radially using the inclined-plane and cutter holder that move radially voussoir itself, cutter holder can be promoted to transport
It is dynamic.
The utility model is further arranged to：The radial direction fastening screw threaded one end is connected to cutter hub and other end one
The radial push screw for being threadedly connected to radial direction voussoir is formed, the radial push screw and radial direction fastening screw have reverse
Screw thread.
By using above-mentioned technical proposal, by radial push screw and radial direction fastening screw with reverse thread, when
When rotating radial direction fastening screw, set using anti-tooth, radial direction voussoir will produce movement, to knife in radial direction voussoir moving process
Press from both sides the effect of applying power and the position of cutter holder is adjusted, and make by the threaded function of radial push screw and cutter holder
Random movement will not occur after the adjustment is completed for cutter holder, it is determined that the position of cutter holder keeps constant, improves the precision of processing.
The utility model is further arranged to：The cutter hub is along not only perpendicular to cutter hub axially but also perpendicular to the side of cutter hub radial direction
Pressing plate is connected to sliding, the pressing plate contacts at cutter holder and housing pin is connected between cutter hub；The housing pin one
End be threadedly connected to cutter hub and the other end integrally formed be threadedly connected to pressing plate it is fixed promote screw, the housing pin and
It is fixed to promote screw that there is reverse thread.
By using above-mentioned technical proposal, after the regulation of installation site is completed to cutter holder, pressing plate and pressure can be relied on
Tight screw plays fastening effect to position of the cutter holder on cutter hub, makes cutter holder be difficult to be moved again, improves the matter of processing
Amount；When rotating fixed promotion screw, housing pin is also rotated simultaneously, and so as to be moved with dynamic pressure plate towards cutter holder, cutter holder is risen
To effect is pushed against, because housing pin and fixed promotion screw have reverse thread, quickly pressing plate can be promoted to move, and
And self-locking action is played to pressing plate by screw thread, pressing plate is kept stable.
The utility model is further arranged to：The cutter holder is provided with first support block inconsistent with cutting blade, the knife
Body is provided with second support block inconsistent with the first support block.
By using above-mentioned technical proposal, because the cantilevered length of cutting blade is larger, and the cutting blade in working angles
Suffered resistance is larger, and can play support in working angles to cutting blade using the first support block and the second support block makees
With extending the service life of cutting blade.
The utility model is further arranged to：The cutter hub center is provided with lightening hole.
By using above-mentioned technical proposal, the weight of whole cutter hub can be reduced, reduce the centrifugal force in its rotation process,
Reduce the suffered centrifugal force in the rotation process of cutter hub end, reduce its oscillating quantity.
The utility model is further arranged to：The cutting blade is evenly arranged with multi-disc along cutter hub circumferencial direction.
By using above-mentioned technical proposal, using the multi-disc cutting blade on cutter hub circumferencial direction, can wherein one cut
When chipping impaired, stock removal action can be still carried out；And each cutting blade have matched cutter holder, it is possible to according to actual need
The position of multiple cutting blades is adjusted and combined, a new tooth form is formed with reference to the cutting blade of diverse location,
Some cutting blades are completed to the cutting of side, recycle other cutting blades to complete opposite side, two groups are combined and are formed final
Groove, so as to lift the service life per a piece of cutting blade
In summary, the utility model has the advantages that：Convenient realized to impaired cutting blade is changed and repaired,
Maintenance cost and production cost are reduced, meanwhile, it can also lift processing efficiency；Utilize mechanism for axial adjusting and radial direction adjustment mechanism
Fine setting effect can be played to the position of cutter holder, so as to lift the accuracy of cutting blade position, lifts the precision of processing.
Brief description of the drawings
Fig. 1 is confined explosion's structural representation that the present embodiment is mainly used in embodying cutter hub；
Fig. 2 is confined explosion's structural representation that the present embodiment is mainly used in embodying cutter holder and mounting groove；
Fig. 3 is the partial structural diagram that the present embodiment is mainly used in embodying cutter holder；
Fig. 4 is confined explosion's structural representation that the present embodiment is mainly used in embodying mechanism for axial adjusting；
Fig. 5 is Fig. 4 I portions enlarged drawing, is mainly used in embodying axial voussoir and axially fastens screw；
Fig. 6 is confined explosion's structural representation that the present embodiment is mainly used in embodying radial direction adjustment mechanism；
Fig. 7 is confined explosion's structural representation that the present embodiment is mainly used in embodying pressing plate；
Fig. 8 is Fig. 7 II portions enlarged drawing, is mainly used in embodying pressing plate and housing pin.
Reference：1st, cutter hub；2nd, knife group；21st, cutting blade；22nd, cutter holder；3rd, waist-shaped hole；4th, lock screw；5th, axially adjust
Complete machine structure；51st, axial voussoir；52nd, screw is axially fastened；6th, inclined-plane is moved axially；7th, screw is axially promoted；8th, machine is radially adjusted
Structure；81st, radial direction voussoir；82nd, radial direction fastening screw；9th, inclined-plane is moved radially；10th, radial push screw；11st, pressing plate；12nd, compress
Screw；13rd, it is fixed to promote screw；14th, the first support block；15th, the second support block；16th, lightening hole；17th, connecting portion；18th, cover plate；
The 19th, prism is installed；20th, mounting groove；23rd, link slot；24th, counter sink；25th, inclined-plane is axially promoted；26th, radial push inclined-plane；27、
Moving hole；28th, neck.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
A kind of milling cutter for cutting groove, shown in reference picture 1, including cylindrical cutter hub 1, in one end of cutter hub 1
Integrally formed with connecting portion 17, the connecting portion 17 is used to be connected with the main shaft or fixture of outside lathe, so as to by revolving
The main shaft or clamp strap moving knife body 1 turned central axial does high speed rotary motion around its own.
Offered at the center of cutter hub 1 with central shaft to remote through cutter hub 1 in coaxial lightening hole 16, lightening hole 16
One piece of cover plate for being closed in lightening hole 16 18 is welded with from the end face of connecting portion 17, and in the end of cutter hub 1.
Shown in reference picture 2, in order to assemble cutting blade 21, five are evenly arranged with along its circumferencial direction in the outer wall of cutter hub 1
Prism 19 is installed, the axial direction of the length direction and cutter hub 1 of installing prism 19 is set in parallel.To be cut according to product
Groove number and position are provided with a mounting groove 20 in installation prism 19 close to the position at both ends, and mounting groove 20 is along peace
The length direction for filling prism 19 is set；Correspond to each mounting groove 20 protrusion on installation prism 19 to be provided with for playing support
Second support block 15 of effect.
With reference to shown in Fig. 2-3, a cutter holder 22 is embedded with each mounting groove 20, paracentral position is leaned in cutter holder 22
Put and contact at the side of the second support block 15 integrally formed with the first support block 14 for protruding from the surface of cutter holder 22, the first support block 14
Wall；A link slot 23 is formed between first support block 14 and cutter holder 22；In link slot 23 and in the first support block 14
Side is welded with a cutting blade 21 for playing shear action, and cutting blade 21 is diamond compact, and cutting blade 21 is away from cutter hub 1
One end is in circular arc, and has cutting inclined-plane in the both sides of the circular arc termination of cutting blade 21；In order to which cutter holder 22 can be fixed into knife
On body 1, it is in two parallel counter sinks 24 to be provided with the cutter holder 22 close to the one end of connecting portion 17 with the radial direction of cutter hub 1, remote
From one counter sink 24 of setting on the cutter holder 22 of the one end of connecting portion 17；One is equipped with counter sink 24 and is threadedly connected to knife
The lock screw 4 of body 1.
And in order in assembling complete that the position of cutter holder 22 is adjusted after cutter holder 22, enable cutter holder 22 along cutter hub 1
Axially and radially slided in mounting groove 20, so counter sink 24 is arranged into waist-shaped hole 3, lock screw 4 is arranged in waist type
Hole 3；Meanwhile cutter holder 22 can not move on the width of mounting groove 20, then the both sides of cutter holder 22 contact at the width of mounting groove 20
The two side in direction.
Shown in reference picture 4-5, in order to which position of the cutter holder 22 on the axial direction of cutter hub 1 is adjusted, in cutter hub 1 close to connection
Mechanism for axial adjusting 5 is provided with the both ends of the mounting groove 20 of the side of portion 17；Mechanism for axial adjusting 5 includes being embedded and sliding company
The axial voussoir 51 of the installation side wall of prism 19 is connected to, axial voussoir 51 can move along the tangential of cutter hub 1；Axial voussoir 51
It is provided with towards the side of cutter holder 22 and axially promotes inclined-plane 25, is equipped with the side wall of cutter holder 22 towards axial voussoir 51 with axially promoting
The inconsistent axial movement inclined-plane 6 in inclined-plane 25；And in order to drive axial voussoir 51 to move, worn in axial voussoir 51
There is one axially to promote screw 7, axially promote screw 7 and axial voussoir 51 to coordinate in screw thread, axially promoting screw 7 towards knife
One end of body 1 integrally formed with one be threadedly connected to cutter hub 1 axially fasten screw 52, axially fasten screw 52 and axially push away
The thread rotary orientation of dynamic screw 7 is reversed.
With reference to shown in Fig. 5-6, in order to which position of the cutter holder 22 in cutter hub 1 radially is adjusted, for every on cutter hub 1
Individual cutter holder 22 is provided with two groups of radial direction adjustment mechanisms 8；Radial direction adjustment mechanism 8 includes an edge perpendicular to corresponding cutter holder 22
The direction sliding moved radially is connected to the radial direction voussoir 81 inside cutter hub 1；One end of radial direction voussoir 81 is arranged in mounting groove 20
Side wall and be provided with radial push inclined-plane 26 in the end；The side wall that voussoir 81 is radially oriented in cutter holder 22 is provided with and radial push
Inclined-plane 26 it is inconsistent move radially inclined-plane 9；And in order to drive radial direction voussoir 81 to move, worn in radial direction voussoir 81
There are a radial push screw 10, radial push screw 10 and radial direction voussoir 81 to coordinate in screw thread, stretched in radial push screw 10
One end for cutter hub 1 is integrally formed with the radial direction for being threadedly connected to cutter hub 1 fastening screw 82, the He of radial direction fastening screw 82
The thread rotary orientation of radial push screw 10 is reversed.
With reference to shown in Fig. 7-8, after cutter holder 22 is completed along the radial and axial position adjustments of cutter hub 1, on cutter hub 1
Offer and move radially direction with cutter holder 22 and move axially the vertical moving hole 27 in direction, slide and be connected with moving hole 27
One pressing plate 11；It is provided with the neck 28 for being embedded pressing plate 11 in one of side wall of cutter holder 22, pressing plate 11 is towards knife
One end of folder 22 contacts at the side wall of neck 28, so as to realize that abutting acts on to pressing plate 11；The length of neck 28 is more than pressing plate 11
Width so that cutter holder 22 can move in mounting groove 20；In order to drive pressing plate 11 to move, it is equipped with pressing plate 11 solid
Surely screw 13 is promoted, it is fixed to promote screw 13 and pressing plate 11 to coordinate in screw thread, it is fixed to promote screw 13 towards one end of cutter holder 22
Integrally formed with housing pin 12, housing pin 12 is threadedly connected to cutter hub 1, and housing pin 12 and fixed promotion screw 13
Thread rotary orientation be reversed.
The operation principle of the present embodiment is：When will need to change a cutter holder 22, original cutter holder 22 is installed from some
Taken out in groove 20；Waist-shaped hole 3 is arranged in first with lock screw 4 to lock pressing plate 11 in advance；Rotate and axially promote screw 7,
Axially screw 7 is promoted to be moved with axial voussoir 51 along perpendicular to the axially direction of cutter hub 1, axial voussoir 51 is being moved through
By axially promoting inclined-plane 25 to apply active force to axial movement inclined-plane 6 in journey, make cutter holder 22 in mounting groove 20 along cutter hub 1
Axial direction do movement, so as to regard to relative position of the cutting blade 21 on the cutter holder 22 on the axial direction of cutter hub 1 can be adjusted；Turn again afterwards
Radius vector drives radial push screw 10 to rotate, rotated in radial push screw 10 to fastening screw 82, radial direction fastening screw 82
Radial direction voussoir 81 will be made to produce movement in journey, radial direction voussoir 81 moves in moving process by radial push inclined-plane 26 to radial direction
Dynamic inclined-plane 9 applies active force, cutter holder 22 is moved in mounting groove 20 along the radial direction of cutter hub 1, so as to regard to that can adjust knife
Relative position of the cutting blade 21 in cutter hub 1 radially on folder 22；After the regulation of each position of cutter holder 22 to be done, rotate solid
Surely screw 13 is promoted, housing pin 12 promotes screw 13 to rotate and be progressively inserted into cutter hub 1 with fixed, fixed to promote screw
13 band dynamic pressure plates 11 move towards the side wall of cutter holder 22, until cutter holder 22 is pushed against in the side wall of mounting groove 20 by pressing plate 11, from
And position of the cutter holder 22 in mounting groove 20 is fixed and will not be moved in working angles, improve machining accuracy and add
Working medium amount.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (8)
1. a kind of milling cutter for cutting groove, including cutter hub（1）, be arranged at cutter hub（1）At least one set of knife group of outer wall（2）,
The knife group（2）Including at least a piece of cutting blade（21）, it is characterized in that：The knife group（2）Also include being removably connected to cutter hub
（1）Cutter holder（22）, the cutting blade（21）It is fixedly connected on cutter holder（22）；The cutter holder（22）Along cutter hub（1）Axial slip
It is connected to cutter hub（1）, the cutter holder（22）Provided with waist-shaped hole（3）, the waist-shaped hole（3）It is equipped with and is threadedly connected to cutter hub（1）
Lock screw（4）；The cutter hub（1）Provided with mechanism for axial adjusting（5）, the mechanism for axial adjusting（5）Including along perpendicular to
Cutter hub（1）Axial direction sliding is connected to cutter hub（1）Axial voussoir（51）, be connected to axial voussoir（51）And cutter hub（1）It
Between axially fasten screw（52）, the cutter holder（22）Provided with axial voussoir（51）The axial movement inclined-plane being engaged（6）.
2. a kind of milling cutter for cutting groove according to claim 1, it is characterized in that：It is described to axially fasten screw（52）
Threaded one end is connected to cutter hub（1）And the other end is integrally formed with being threadedly connected to axial voussoir（51）Axial direction promote screw
（7）, it is described axially to promote screw（7）With axially fasten screw（52）With reverse thread.
3. a kind of milling cutter for cutting groove according to claim 1, it is characterized in that：The cutter holder（22）Along cutter hub
（1）Radial slippage is connected to cutter hub（1）, the cutter hub（1）Provided with radial direction adjustment mechanism（8）, the radial direction adjustment mechanism（8）Bag
Include along perpendicular to cutter hub（1）The direction sliding of radial direction is connected to cutter hub（1）Radial direction voussoir（81）, be connected to radial direction voussoir（81）
And cutter hub（1）Between radial direction fastening screw（82）, the cutter holder（22）Provided with radial direction voussoir（81）The radial direction being engaged is moved
Dynamic inclined-plane（9）.
4. a kind of milling cutter for cutting groove according to claim 3, it is characterized in that：The radial direction fastening screw（82）
Threaded one end is connected to cutter hub（1）And the other end is integrally formed with being threadedly connected to radial direction voussoir（81）Radial push screw
（10）, the radial push screw（10）With radial direction fastening screw（82）With reverse thread.
5. a kind of milling cutter for cutting groove according to claim 4, it is characterized in that：The cutter hub（1）Edge was both vertical
In cutter hub（1）Axially again perpendicular to cutter hub（1）The direction sliding of radial direction is connected to pressing plate（11）, the pressing plate（11）Contact at knife
Folder（22）And and cutter hub（1）Between be connected with housing pin（12）；The housing pin（12）Threaded one end is connected to cutter hub（1）
And the other end is integrally formed with being threadedly connected to pressing plate（11）Fixed promote screw（13）, the housing pin（12）And fixation
Promote screw（13）With reverse thread.
6. a kind of milling cutter for cutting groove according to claim 1, it is characterized in that：The cutter holder（22）Provided with cutting
Chip（21）The first inconsistent support block（14）, the cutter hub（1）Provided with the first support block（14）Inconsistent second
Bracer（15）.
7. a kind of milling cutter for cutting groove according to claim 1, it is characterized in that：The cutter hub（1）Center is provided with
Lightening hole（16）.
8. a kind of milling cutter for cutting groove according to claim 1, it is characterized in that：The cutting blade（21）Along cutter hub
（1）Circumferencial direction is evenly arranged with multi-disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720489106.1U CN206882873U (en) | 2017-05-03 | 2017-05-03 | A kind of milling cutter for cutting groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720489106.1U CN206882873U (en) | 2017-05-03 | 2017-05-03 | A kind of milling cutter for cutting groove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206882873U true CN206882873U (en) | 2018-01-16 |
Family
ID=61341437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720489106.1U Expired - Fee Related CN206882873U (en) | 2017-05-03 | 2017-05-03 | A kind of milling cutter for cutting groove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206882873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020410A (en) * | 2017-05-03 | 2017-08-08 | 玛珀（上海）精密刀具有限公司 | A kind of milling cutter for cutting groove |
-
2017
- 2017-05-03 CN CN201720489106.1U patent/CN206882873U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107020410A (en) * | 2017-05-03 | 2017-08-08 | 玛珀（上海）精密刀具有限公司 | A kind of milling cutter for cutting groove |
| CN107020410B (en) * | 2017-05-03 | 2019-08-16 | 玛珀（上海）精密刀具有限公司 | A kind of milling cutter for cutting groove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180116 Termination date: 20200503 |