CN209439285U - A kind of server machine box part quickly takes out hole special fixture - Google Patents
A kind of server machine box part quickly takes out hole special fixture Download PDFInfo
- Publication number
- CN209439285U CN209439285U CN201822169264.6U CN201822169264U CN209439285U CN 209439285 U CN209439285 U CN 209439285U CN 201822169264 U CN201822169264 U CN 201822169264U CN 209439285 U CN209439285 U CN 209439285U
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- post
- mold
- die holder
- spring
- slide opening
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- 239000011230 binding agent Substances 0.000 claims abstract description 34
- 241001584775 Tunga penetrans Species 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 4
- 238000004080 punching Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Abstract
The utility model discloses a kind of server machine box parts quickly to take out hole special fixture, including upper mold, lower mold, the lower end of the upper mold is equipped with upper binder boss, the lower end of the upper binder boss is equipped with upper slide opening, the inside of upper mold is equipped with the first spring, jigger pin is equipped in the upper slide opening, first spring and liftout pin connection, the upper end of the lower mold is equipped with lower binder boss, the upper end of the lower binder boss is equipped with lower slide opening, the inside of the lower mold is equipped with punch and second spring, the second spring covers in the outside of punch, the punch respectively with lower slide opening, upper slide opening cooperation.After completing to take out hole, jigger pin can eject workpiece under the action of the first spring, punch can deviate from from workpiece under the action of second spring, to solve the problems, such as that current mold workpiece during taking out hole is easy to be stuck on mold, it improves work efficiency, yield is increased, manpower is saved, is reduced costs.
Description
Technical field
The utility model relates to take out punch die technical field, specially a kind of server machine box part quickly takes out that hole is dedicated to be controlled
Tool.
Background technique
Many product designs pumping hole characteristic in panel beating sector, wherein the pumping hole with bud line is also named and sprouts.It is main to take out hole
Functional localization can be used for interior positioning and outer positioning；Take out the process in hole are as follows: the pre- hole for taking out hole is first outputed on metal plate product,
Then with the pre- hole positioning of hole jig bottom punch needle alignment is taken out, stepping on pumping hole machine pedal makes jig molding complete pumping hole.
Existing pumping hole jig structure is very simple, since upper mold does not have material-removing structure, the pumping hole of workpiece after board die sinking
It can cover in the upper mold of jig, need by hand repeatedly rotational workpieces material could be removed, processing efficiency is very low.
Utility model content
The utility model provides a kind of server machine box part and quickly takes out aiming at deficiencies of the prior art
Hole special fixture, after completing to take out hole, jigger pin can be ejected workpiece under the action of the first spring, and punch can be in second spring
Under the action of deviate from from workpiece, so that solving current mold workpiece during taking out hole is easy to be stuck in asking on mold
Topic, workpiece fetches conveniently after taking out hole, accelerates and takes out hole speed, improves work efficiency, increase yield, save manpower, drops
Low cost.
To achieve the above object, utility model provides the following technical solutions:
A kind of server machine box part quickly takes out hole special fixture, including upper mold, lower mold, the lower end of the upper mold
Equipped with upper binder boss, the lower end of the upper binder boss is equipped with upper slide opening, and the inside of upper mold is equipped with the first spring, it is described on
Jigger pin, first spring and liftout pin connection are equipped in slide opening, the upper end of the lower mold is equipped with lower binder boss, described
The upper end of lower binder boss is equipped with lower slide opening, and the inside of the lower mold is equipped with punch and second spring, the second spring set
In the outside of punch, the punch cooperates with lower slide opening, upper slide opening respectively.
Preferably, the upper mold includes the first upper die holder, the second upper die holder, the lower end of the first upper die holder and the second upper mold
The upper end connection of seat, the lower end surface of first upper die holder are equipped with the second mounting groove, and the bottom of second mounting groove is equipped with the
One mounting groove, the upper surface of second upper die holder are equipped with upper link block, and the upper link block and the second mounting groove cooperate, upper company
The upper surface for connecing block is equipped with third mounting groove, and the upper binder boss is set to the lower end of the second upper die holder, the third mounting groove
It being connected to upper slide opening, the pin cap of the jigger pin is set in third mounting groove, and the pin rod of jigger pin is set in upper slide opening, and described the
The upper end of one spring is connect with the bottom of the first mounting groove, and the lower end of the first spring and the pin cap of jigger pin connect.
Preferably, the lower mold includes the first lower die holder, the second lower die holder, first lower die holder and the second lower die holder
Between by contour sleeve connection, the lower end surface of first lower die holder is equipped with the 4th mounting groove, and the lower binder boss is set to
The upper end of first lower die holder, the lower slide opening are connected to the 4th mounting groove, and the upper end of second lower die holder is equipped with lower connecting block,
The lower connecting block and the 4th mounting groove cooperate, and the lower end of the punch is connect with lower connecting block, and punch passes through the 4th mounting groove
Cooperate with lower slide opening, the upper end of the second spring is connect with the bottom of the 4th mounting groove, the lower end of second spring and lower connection
Block connection.
Preferably, the punch includes the first post, the second post, third post, the head of a nail, the head of a nail and lower connecting block
Connection, the lower end of first post connect with the upper end of the second post, and the lower end of second post is upper with third post
End connection, the lower end of the third post connect with the head of a nail, third post, the second post, the first post diameter dimension successively
Become smaller, and the diameter dimension of the second post is less than the diameter dimension of upper slide opening, the upper end-face edge of the third post and the second nail
The upper end-face edge of column is equipped with chamfering.
Preferably, second lower die holder is equipped with pilot hole, and the pilot hole is stepped hole, under the contour sleeve
End cooperates with pilot hole.
Preferably, the upper surface of the lower connecting block is equipped with fixing groove, and the head of a nail is set in fixing groove.
Preferably, the upper surface of the lower connecting block is equipped with nail pressing plate, and the nail pressing plate is equipped with drift bolt hole, the drift bolt
Hole and third post cooperate, and wear top plate and are bolted with lower connecting block.
Preferably, the lower end surface of the jigger pin is equipped with location hole, and first post and location hole cooperate.
Preferably, the upper end of the upper mold is equipped with upper connecting column, and the lower end of the lower mold is equipped with lower connecting column, described
Fixed groove is equipped on the lateral wall of upper connecting column and lower connecting column.
Compared with prior art, the beneficial effect of utility model is:
1, the first spring is arranged in the utility model in upper mold, and second spring is arranged in lower die, after completing to take out hole, top
Material pin can eject workpiece under the action of the first spring, and punch can deviate from from workpiece under the action of second spring, thus
Solve the problems, such as that current mold workpiece during taking out hole is easy to be stuck on mold, workpiece fetches conveniently after taking out hole, accelerates
Pumping hole speed, improves work efficiency, increases yield, save manpower, reduce costs.
2, upper binder boss, lower binder boss is arranged in the utility model, will with the smallest pressing area by two boss
Workpiece is clamped, and has not only met fixation during taking out hole to workpiece, but also can carry out keeping away position for other pumping holes, has solved
Current mold holding area is excessive, mold can only a kind of pumping hole to plate, pass through upper binder boss, lower binder boss
Other pumping holes will not only be impacted, but also allow mold that there is versatility, different plate can be carried out to take out hole operation,
Save mold opening cost.
3, upper mold is divided into the first upper die holder, the second upper die holder by the utility model, and lower mold is divided into the first lower die holder,
Two lower die holders, it is easy to maintenance convenient for being dismounted to upper and lower mold, punch can be replaced, it is various sizes of to produce
Hole is taken out, allows mold with more practicability and versatility, replacement is convenient, while without repeating to be opened, greatly reducing cost.
4, the punch structure of the utility model is step, and the size of pumping nail can be replaced according to different requirements, is used
It is convenient, third post, the second post, the first post diameter dimension successively become smaller, in the upper end-face edge of third post and second
The upper end-face edge of post is equipped with chamfering, during taking out hole can time rounding off, avoid rigid collision, prevent from taking out hole broken
It splits, improves drilling quality.
5, second lower die holder of the utility model is equipped with pilot hole, and the pilot hole is stepped hole, the contour sleeve
Lower end and pilot hole cooperate, can guarantee the stability and safety when being slidably matched between the first lower die holder and the second lower die holder
Property.
6, the upper surface of the lower connecting block of the utility model is equipped with fixing groove, and the head of a nail, which is set in fixing groove, can save sky
Between, it makes equipment more compact, is equipped with nail pressing plate in the upper surface of lower connecting block, punch and lower connection can be guaranteed by nail pressing plate
Block connection fastness, increase equipment use it is reliable with it is safe.
7, the utility model is equipped with location hole in the lower end surface of jigger pin, before taking out hole, can by the first post and
Location hole cooperation guarantees that taking out hole will not deviate, it is ensured that take out hole quality to align to upper and lower mold.
8, the utility model is equipped with upper connecting column in the upper end of upper mold, and the lower end of lower mold is equipped with lower connecting column, above and below
Connecting column can facilitate mold to be mounted on punch table on the lateral wall of connecting column and lower connecting column to be equipped with fixed groove,
During installation, bolt is withstood in fixed groove, can increase the fastness of connection, is guaranteed using safe.
9, the third post of the utility model punching when can first on plate pre- hole cooperate, to punch position into
Row positioning, guarantees the accuracy of punch position.
Detailed description of the invention
Fig. 1 is the upper die structure schematic diagram of the utility model；
Fig. 2 is the lower die structure schematic diagram of the utility model.
In figure: the first upper die holder of 1-；The upper connecting column of 101-；The first mounting groove of 102-；The second mounting groove of 103-；On 2- second
Die holder；The upper link block of 201-；202- third mounting groove；The upper slide opening of 203-；The upper binder boss of 204-；The first spring of 3-；4- liftout
Pin；401- location hole；The first lower die holder of 5-；Binder boss under 501-；Slide opening under 502-；The 4th mounting groove of 503-；Under 6- second
Die holder；601- lower connecting block；602- fixing groove；Connecting column under 603-；604- pilot hole；7- punch；The first post of 701-；702-
Second post；703- third post；The 704- head of a nail；8- second spring；9- nail pressing plate；901- drift bolt hole；The high sleeve such as 10-.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figs. 1-2, a kind of server machine box part quickly takes out hole special fixture, including upper mold, lower mold, described
The lower end of upper mold is equipped with upper binder boss 204, and the lower end of the upper binder boss 204 is equipped with upper slide opening 203, upper mold it is interior
Portion is equipped with the first spring 3, is equipped with jigger pin 4 in the upper slide opening 203, first spring 3 is connect with jigger pin 4, under described
The upper end of mold is equipped with lower binder boss 501, and the upper end of the lower binder boss 501 is equipped with lower slide opening 502, the lower mold
Inside is equipped with punch 7 and second spring 602, and the second spring covers 602 sets of outsides in punch 7, and the punch 7 is respectively under
Slide opening 502, upper slide opening 203 cooperate.
Binder boss 204, lower binder boss 501 in setting, by two boss with the smallest pressing area by workpiece into
Row clamping had not only met fixation during taking out hole to workpiece, but also can carry out keeping away position for other pumping holes, solved current
Mold holding area is excessive, mold can only a kind of pumping hole to plate, pass through upper binder boss 204, lower binder boss 501
Other pumping holes will not only be impacted, but also allow mold that there is versatility, different plate can be carried out to take out hole operation,
Save mold opening cost.
The upper mold includes the first upper die holder 1, the second upper die holder 2, the lower end of the first upper die holder 1 and the second upper die holder 2
Upper end be bolted, the lower end surface of first upper die holder 1 is equipped with the second mounting groove 103, second mounting groove 103
Bottom be equipped with the first mounting groove 102, the upper surface of second upper die holder 2 is equipped with upper link block 201, the upper link block
201 and second mounting groove 103 cooperate, the upper surface of upper link block 201 is equipped with third mounting groove 202, the upper binder boss 204
Set on the lower end of the second upper die holder 2, the third mounting groove 202 is connected to upper slide opening 203, and the pin cap of the jigger pin 4 is set to
In third mounting groove 202, the pin rod of jigger pin 4 is set in upper slide opening 203, the upper end of first spring 3 and the first mounting groove
102 bottom connection, the lower end of the first spring 3 is connect with the pin cap of jigger pin 4.
The lower mold includes the first lower die holder 5, the second lower die holder 6, first lower die holder 5 and the second lower die holder 6 it
Between connected by contour sleeve 10, the lower end surface of first lower die holder 5 is equipped with the 4th mounting groove 503, the lower binder boss
501 are set to the upper end of the first lower die holder 5, and the lower slide opening 502 is connected to the 4th mounting groove 503, second lower die holder 6 it is upper
End is equipped with lower connecting block 601, and the lower connecting block 601 and the 4th mounting groove 503 cooperate, the lower end of the punch 7 and lower connection
Block 601 connects, and punch 7 passes through the 4th mounting groove 503 and cooperates with lower slide opening 502, the upper end of the second spring 8 and the 4th installation
The bottom of slot 503 connects, and the lower end of second spring 8 is connect with lower connecting block 601.
Upper mold is divided into the first upper die holder 1, the second upper die holder 2, lower mold is divided into the first lower die holder 5, the second lower die holder
7, it is easy to maintenance convenient for being dismounted to upper and lower mold, punch 7 can be replaced, to produce various sizes of pumping hole,
Allow mold with more practicability and versatility, replacement is convenient, while without repeating to be opened, greatly reducing cost.
The punch 7 includes the first post 701, the second post 702, third post 703, the head of a nail 704, the head of a nail 704
It is connect with lower connecting block 601, the lower end of first post 701 is connect with the upper end of the second post 702, second post
702 lower end is connect with the upper end of third post 703, and the lower end of the third post 703 is connect with the head of a nail 704, third post
703, the second post 702, the first post 701 diameter dimension successively become smaller, and the diameter dimension of the second post 702 be less than upper cunning
The upper end-face edge of the diameter dimension in hole 203, the upper end-face edge of the third post 703 and the second post 702 is equipped with chamfering.Punching
Following closely 7 structures is step, the size of pumping nail can be replaced according to different requirements, easy to use, third post 703, second is followed closely
Column 702, the first post 701 diameter dimension successively become smaller, third post 703 upper end-face edge and the second post 702 it is upper
End margin is equipped with chamfering, during taking out hole can time rounding off, avoid rigid collision, prevent take out hole rupture, improve
Drilling quality.
Second lower die holder 6 is equipped with pilot hole 604, and the pilot hole 604 is stepped hole, can prevent contour sleeve
10 slip out of pilot hole 604, and the lower end of the contour sleeve 10 and pilot hole 604 cooperate, can guarantee the first lower die holder 5 with
Stability and safety when being slidably matched between the second lower die holder 6.
The upper surface of the lower connecting block 601 is equipped with fixing groove 602, and the head of a nail 704 is set in fixing groove 602.It is described
The upper surface of lower connecting block 601 is equipped with nail pressing plate 9, and the nail pressing plate 9 is equipped with drift bolt hole 901, the drift bolt hole 901 and third
Post 703 cooperates, and wears top plate 9 and is bolted with lower connecting block 601.The upper surface of lower connecting block 601 is equipped with fixing groove
602, the head of a nail 704, which is set in fixing groove 602, can save space, make equipment more compact, set in the upper surface of lower connecting block 601
There is nail pressing plate 9, the fastness that punch 7 is connect with lower connecting block 601 can be guaranteed by nail pressing plate 9, what increase equipment used can
By with safety.
The lower end surface of the jigger pin 4 is equipped with location hole 401, and first post 701 cooperates with location hole 401.It is taking out
Before hole, it can be cooperated by the first post 701 with location hole 401, to align to upper and lower mold, guarantee that pumping hole will not
Offset, it is ensured that take out hole quality.
The upper end of the upper mold is equipped with upper connecting column 101, and the lower end of the lower mold is equipped with lower connecting column 603, described
It is equipped with fixed groove on upper connecting column 101 and the lateral wall of lower connecting column 603, during installation, bolt is withstood in fixed groove,
The fastness of connection can be increased, guaranteed using safe.
In use, installing lower mold by lower connecting column 603 first, then third post 703 and location hole 401 are matched
It closes, upper mold is positioned, upper mold is fixed on board by upper connecting column 101 then, plate is placed on lower binder
Pre- hole and third post 703 on boss 501, and on plate cooperate, at this point, upper mold pushes, upper binder boss 204 is pressed in plate
On material and move down, under the action of upper mold, the first lower die holder 5 is moved down, contour sleeve 10 in pilot hole 604 to
Lower slider, red needle 7 is stretched out out of upper binder boss 204 at this time, and realizes punching, while punch 7 jacks up jigger pin 4 upwards,
First spring 3 is compressed with second spring 8, and the second post 702 is punching column, the diameter of the second post 702 in drill process
The internal diameter for determining pumping hole carries out various sizes of pumping hole machined by changing the diameter of the second post 702, takes out hole and completes
Afterwards, upper mold moves up, and the first lower die holder 5 moves up under the action of second spring 8, deviates from punch 7 out of pumping hole,
Jigger pin 4 moves down under the action of the first spring 3 simultaneously ejects workpiece out of upper slide opening 203, completes to take out hole process.This
The first spring 3 is arranged in utility model in upper mold, and second spring 8 is arranged in lower die, and after completing to take out hole, the meeting of jigger pin 4 exists
Workpiece is ejected under the action of first spring 3, punch 7 can deviate from from workpiece under the action of second spring 8, to solve
Current mold workpiece during taking out hole is easy to be stuck in the problem on mold, and workpiece fetches conveniently after taking out hole, accelerates and takes out hole
Speed improves work efficiency, and increases yield, saves manpower, reduces costs.
Obviously, it is practical without departing from this can to carry out various modification and variations to the utility model by those skilled in the art
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (9)
1. a kind of server machine box part quickly takes out hole special fixture, including upper mold, lower mold, it is characterised in that: on described
The lower end of mold is equipped with upper binder boss, and the lower end of the upper binder boss is equipped with upper slide opening, and the inside of upper mold is equipped with first
Spring, the upper slide opening is interior to be equipped with jigger pin, first spring and liftout pin connection, and the upper end of the lower mold, which is equipped with, to be pushed
Expect boss, the upper end of the lower binder boss is equipped with lower slide opening, and the inside of the lower mold is equipped with punch and second spring, described
Second spring covers in the outside of punch, and the punch cooperates with lower slide opening, upper slide opening respectively.
2. a kind of server machine box part as described in claim 1 quickly takes out hole special fixture, it is characterised in that: the upper mold
Tool includes the first upper die holder, the second upper die holder, and the lower end of the first upper die holder is connect with the upper end of the second upper die holder, on described first
The lower end surface of die holder is equipped with the second mounting groove, and the bottom of second mounting groove is equipped with the first mounting groove, second upper die holder
Upper surface be equipped with upper link block, the upper link block and the second mounting groove cooperate, and the upper surface of upper link block is equipped with third peace
Tankage, the upper binder boss are set to the lower end of the second upper die holder, and the third mounting groove is connected to upper slide opening, the jigger pin
Pin cap be set in third mounting groove, the pin rod of jigger pin is set in upper slide opening, the upper end of first spring and the first installation
The bottom of slot connects, and the lower end of the first spring and the pin cap of jigger pin connect.
3. a kind of server machine box part as described in claim 1 quickly takes out hole special fixture, it is characterised in that: the lower die
Tool includes the first lower die holder, the second lower die holder, passes through contour sleeve connection, institute between first lower die holder and the second lower die holder
The lower end surface for stating the first lower die holder is equipped with the 4th mounting groove, and the lower binder boss is set to the upper end of the first lower die holder, under described
Slide opening is connected to the 4th mounting groove, and the upper end of second lower die holder is equipped with lower connecting block, the lower connecting block and the 4th installation
Slot cooperation, the lower end of the punch are connect with lower connecting block, and punch passes through the 4th mounting groove and lower slide opening cooperates, second bullet
The upper end of spring is connect with the bottom of the 4th mounting groove, and the lower end of second spring is connect with lower connecting block.
4. a kind of server machine box part as claimed in claim 3 quickly takes out hole special fixture, it is characterised in that: the punch
Including the first post, the second post, third post, the head of a nail, the head of a nail is connect with lower connecting block, the lower end of first post
It is connect with the upper end of the second post, the lower end of second post is connect with the upper end of third post, under the third post
End is connect with the head of a nail, third post, the second post, the first post diameter dimension successively become smaller, and the diameter ruler of the second post
The very little diameter dimension less than upper slide opening, the upper end-face edge of the third post and the upper end-face edge of the second post are equipped with chamfering.
5. a kind of server machine box part as claimed in claim 3 quickly takes out hole special fixture, it is characterised in that: described second
Lower die holder is equipped with pilot hole, and the pilot hole is stepped hole, and the lower end of the contour sleeve and pilot hole cooperate.
6. a kind of server machine box part as claimed in claim 4 quickly takes out hole special fixture, it is characterised in that: the lower company
The upper surface for connecing block is equipped with fixing groove, and the head of a nail is set in fixing groove.
7. a kind of server machine box part as claimed in claim 6 quickly takes out hole special fixture, it is characterised in that: the lower company
The upper surface for connecing block is equipped with nail pressing plate, and the nail pressing plate is equipped with drift bolt hole, and the drift bolt hole and third post cooperate, and wears top plate
It is bolted with lower connecting block.
8. a kind of server machine box part as claimed in claim 4 quickly takes out hole special fixture, it is characterised in that: the liftout
The lower end surface of pin is equipped with location hole, and first post and location hole cooperate.
9. a kind of server machine box part as described in claim 1 quickly takes out hole special fixture, it is characterised in that: the upper mold
The upper end of tool is equipped with upper connecting column, and the lower end of the lower mold is equipped with lower connecting column, and the upper connecting column is outer with lower connecting column
Fixed groove is equipped on side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822169264.6U CN209439285U (en) | 2018-12-21 | 2018-12-21 | A kind of server machine box part quickly takes out hole special fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822169264.6U CN209439285U (en) | 2018-12-21 | 2018-12-21 | A kind of server machine box part quickly takes out hole special fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209439285U true CN209439285U (en) | 2019-09-27 |
Family
ID=68014874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822169264.6U Expired - Fee Related CN209439285U (en) | 2018-12-21 | 2018-12-21 | A kind of server machine box part quickly takes out hole special fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209439285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109433908A (en) * | 2018-12-21 | 2019-03-08 | 郑州云海信息技术有限公司 | A kind of server machine box part quickly takes out hole special fixture |
| CN109433908B (en) * | 2018-12-21 | 2024-09-03 | 郑州云海信息技术有限公司 | Special tool of quick hole of taking out of server machine case part |
-
2018
- 2018-12-21 CN CN201822169264.6U patent/CN209439285U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109433908A (en) * | 2018-12-21 | 2019-03-08 | 郑州云海信息技术有限公司 | A kind of server machine box part quickly takes out hole special fixture |
| CN109433908B (en) * | 2018-12-21 | 2024-09-03 | 郑州云海信息技术有限公司 | Special tool of quick hole of taking out of server machine case part |
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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: 20190927 Termination date: 20201221 |
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| CF01 | Termination of patent right due to non-payment of annual fee |