CN209021288U - The hole drilling die of porous workpiece - Google Patents
The hole drilling die of porous workpiece Download PDFInfo
- Publication number
- CN209021288U CN209021288U CN201821404068.6U CN201821404068U CN209021288U CN 209021288 U CN209021288 U CN 209021288U CN 201821404068 U CN201821404068 U CN 201821404068U CN 209021288 U CN209021288 U CN 209021288U
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- clamping
- block
- hole
- turntable
- template
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- 238000005553 drilling Methods 0.000 title claims abstract description 35
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 210000003734 kidney Anatomy 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Drilling And Boring (AREA)
Abstract
The utility model discloses a kind of hole drilling dies of porous workpiece, including turntable, template, locating rod, indexing bracket and clamping unit equipped with arc groove；Locating rod is vertically arranged on the rack；Turntable, which is worn, to be connect locating rod and is rotatably arranged in rack, and porous workpiece is located on the turntable；Template is equipped with die hole and centre bore and one end is equipped with first shaft shoulder, and template is positioned at porous workpiece by first shaft shoulder；Indexing bracket slide is placed in turntable side, clamping unit is placed on indexing bracket and is at least made of sliding block, clamping screw and upper clamping block with the face of clamping and lower gripping block, upper clamping block and lower gripping block clamping rotary disk side and by clamping screw with sliding block arc groove in sliding so that porous workpiece is done indexing rotation.The utility model greatly improves processing effect of circumferential cloth hole, and makes the positioning of template and workpiece quickly, accurately.
Description
Technical field:
The utility model relates to mold more particularly to the hole drilling dies of porous workpiece.
Background technique:
The processing of existing porous workpiece, for example, in helical-lobe compressor pressing plate hole machined, drill jig is substantially placed in workpiece
On, hole to be processed on workpiece is positioned according to the hole on drill jig, therefore every what a hole of processing will move drill jig
And workpiece, make next processing hole location against drilling tool, therefore this kind of processing time consuming is laborious, low efficiency；The structure of drill jig simultaneously, makes
The chip drilled out can only be taken out of by drill bit, and at the lesser hole of drill straight diameter, chip removal is extremely unsmooth, need when drilling constantly mention repeatedly
Drill bit is risen to take chip out of, processing efficiency is on the one hand influenced, on the other hand also will affect cutter life；In addition, existing brill
Mould keeps concentric circumferentially positioned also inconvenience with workpiece, also affects working efficiency.
Summary of the invention:
It is proposed that a kind of that work efficiency is high is porous the purpose of the utility model is to overcome the deficiency of the above-mentioned prior art
The hole drilling die of workpiece, its technical solution is as follows:
The hole drilling die of the porous workpiece, in the rack of drilling machine, porous workpiece center has centre bore, the drilling
Mold includes turntable, template, locating rod, indexing bracket and clamping unit equipped with arc groove；The locating rod is vertically set on
In rack；The turntable, which is worn, to be connect locating rod and is rotatably arranged in rack, and porous workpiece is located on the turntable；The template
It is equipped with die hole and centre bore and one end is equipped with first shaft shoulder, template is positioned at porous workpiece by first shaft shoulder；Index bracket
It is slidably disposed within turntable side, clamping unit is placed on indexing bracket and at least by sliding block, clamping screw and with the upper of the face of clamping
Gripping block and lower gripping block composition, sliding block be located in indexing pedestal upper end and rabbet arc groove in and be close to lower end surface
Upper clamping block connection, the clampings face of upper clamping block are in the upper surface position of turntable side, on clamping screw top spiral connects
Gripping block simultaneously wears and connects sliding block, and clamping screw lower removable connects lower gripping block, and the clamping face of lower gripping block is rotated with clamping screw
And move up and down, lower end surface or lower position in turntable side, upper clamping block and lower gripping block with sliding block arc groove
Middle sliding.
The hole drilling die further includes the pedestal that center is equipped with jack hole, which is worn by jack hole connects locating rod and fix
In rack, the turntable is cylindrical shape, and the circumference of the open end of tubular turntable is arranged in the turntable side, and turntable passes through circle
Cylindrical cavity is supported on pedestal and is rotatably arranged in rack.
The locating rod is equipped with positioning sleeve, this is socketed on the securing lever with having positioning sleeve interference fit or clearance fit,
And axially position is made with the axially position shaft shoulder in locating rod；It positions set upper side and is equipped with the circumferentially positioned shaft shoulder, porous workpiece passes through
Centre bore wear the circumferentially positioned shaft shoulder make it is circumferentially positioned.
The template is equipped with second shaft shoulder, and second shaft shoulder is positioned at template end face and first shaft shoulder between, formation the
Circular ring shape chip space between two shaft shoulders and template end face.
The locating rod upper end is equipped with external screw thread, and the centre bore that locating rod upper end passes through template is screwed on nut, and template is made to exist
Vertical direction is fixed.
The indexing bracket includes being vertically arranged arc panel on the rack, be connected horizontally on arc panel upper end and being equipped with circle
The coulisse of arc slot, one end connection and axially position screw rod on the base are connected to equipped with screw hole and by the screw hole spiral
Fan-shaped movable block on screw rod and the rocker arm being connected on screw rod.
The sliding block includes convex shoulder and slider body, and slider body is cylindrical, and diameter is adapted with the groove width of arc groove；
Sliding block is positioned on coulisse with convex shoulder, and slider body is embedded in arc groove, and by screw and is located under arc groove lower end
Gripping block connection.
Upper clamping block one end elasticity is resisted against on the inner arc surface of arc panel；Upper clamping block lower end, which is equipped with, supplies lower folder
The guide groove that tight block moves up and down；Sticking rubber pad is distinguished on the correspondence clamping face of upper clamping block and lower gripping block clamping rotary disk side
Piece.
The lower gripping block is equipped with stepped hole, and clamping screw is equipped with the shaft shoulder, and clamping screw passes through the shaft shoulder and stepped hole
Cooperation is flexibly connected lower gripping block.
The clamping unit further includes operation handle and nut, and the clamping screw upper end is successively arranged limit from top to bottom
External screw thread and non-cylindrical, operation handle are equipped with non-circular hole compatible with the non-cylindrical, and operation handle passes through the non-circular hole
It is plugged in the handle non-cylindrical of operation, nut, which is screwed on, to be limited on external screw thread, and the axial position of operation handle is limited.
Porous workpiece is placed on a turntable by the utility model, is allowed to rotate with turntable, and the rotation of turntable passes through folder
Tight unit clamps it, pushes, and clamping unit passes through along the movement for indexing arc groove on bracket, completes the indexing of setting arc chord angle
Rotation, workpiece quickly enter next station from a upper workpiece, greatly improve processing effect of circumferential cloth hole；This is practical simultaneously
It is novel also by the way that first shaft shoulder is arranged in template, make the positioning of template and workpiece quickly, it is accurate；Further, this reality
Second shaft shoulder is set with novel also in template, forms the chip space of circular ring shape between the shaft shoulder and template end face, thus
The chip drilled out be discharged largely can successfully by chip space, what chip discharge no longer needed drill bit is repeatedly lifted up middle extraction,
Both processing efficiency can be improved, also improve the service life of drilling tool.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model hole drilling die, and indexing bracket therein makes clamping unit be in left side
Operating position.
Fig. 2 is that the structure for the off-position that indexing bracket makes clamping unit be in right side in hole drilling die shown in Fig. 1 is shown
It is intended to.
Fig. 3 is the top view of hole drilling die shown in Fig. 1.
Fig. 4 is the top view (coulisse for removing indexing pedestal upper end) of hole drilling die shown in Fig. 2.
Fig. 5 is the schematic diagram that the arc chord angle of arc groove is adjusted by feeler gauge.
Fig. 6 is the partial structurtes enlarged drawing of hole drilling die shown in Fig. 1.
Fig. 7 is the partial structurtes enlarged drawing of hole drilling die shown in Fig. 2.
Fig. 8 is the schematic top plan view of upper clamping block.
Fig. 9 is the right view of upper clamping block shown in Fig. 8.
Figure 10 is the schematic top plan view of lower gripping block.
Figure 11 is clamping screw and the operation handle being arranged on the clamping screw and the spiral shell for being screwed in clamping screw upper end
Female schematic diagram.
Figure 12 is cross-sectional view of the clamping screw, operation handle shown in Figure 11 at the position A-A.
Specific embodiment:
The utility model is further described with reference to the accompanying drawings and embodiments.
If the hole drilling die of Fig. 1-Fig. 4, the utility model are set in the rack 30 of drilling machine, need to carry out the porous of hole machined
The center of workpiece 20 is equipped with centre bore 201.The hole drilling die include turntable 11, template 13, locating rod 16, equipped with arc groove
Indexing bracket 14 and clamping unit 15, locating rod 16 are vertically arranged, and rack is fixed in lower end；Porous workpiece is positioned for supporting
20 turntable 11 is worn by the hole at center to be connect the locating rod 16 and is rotatably arranged in rack 30；Template 13 is equipped with center
Hole 135 and several uniformly distributed die holes 134, and axial one end is equipped with first shaft shoulder 131, template 13 by first shaft shoulder 131 with
Centre bore 201 on porous workpiece cooperates, and carries out the circumferentially positioned of template 13；Indexing bracket 14 is slidably positioned at turntable 11
Side, clamping unit 15 setting indexing bracket 14 on.
Turntable 11 can have a variety of structures form, and the turntable 11 of the present embodiment is cylindrical shape, the thus drilling of the present embodiment
Mold is also provided with corresponding pedestal 10, and the center of pedestal 10 is equipped with the jack hole 102 of locating rod, and circumference side is evenly equipped with several heavy
Hole 101, pedestal 10 is worn by the hole to be connect locating rod 16 and is supported on rack 30, and is connected by screw 103, and turntable 11 passes through cylinder
Shape inner cavity is supported on pedestal 10 and is rotatably arranged in rack 30.
In order to enable the centering well of porous workpiece 20, guarantee the concentricity with locating rod 16, in corresponding porous workpiece 20
The locating rod 16 of height and position is equipped with positioning sleeve 162, which requires interference fit or clearance fit according to concentricity
Ground is socketed in locating rod 16, and the concentricity of the present embodiment is ± 0.05.Positioning sleeve 162 is with the axially position axis in locating rod 16
Shoulder 161 makees axially position.It positions set upper side and is equipped with the circumferentially positioned shaft shoulder 1621, the positioning shaft shoulder 1621 and porous workpiece 20
Centre bore 201 is adapted, by positioning shaft shoulder 1621 wear centre bore 201 make it is circumferentially positioned.
For the ease of chip removal, the utility model is also arranged second between first shaft shoulder 131 and corresponding end surface of template 13
The shaft shoulder 132, is allowed to generate the arc-shaped chip space between template corresponding end surface and second shaft shoulder, and mach metal fillings can be big
Part is discharged from the chip space, does not need to greatly improve processing efficiency by being repeatedly lifted up drilling tool discharge.
The porous workpiece 20 being placed on turntable 11 and the template 13 being placed on porous workpiece 20, do not need generally to clamp, such as
If porous workpiece 20 is smaller, lighter weight needs to clamp, then by the way that external screw thread, 16 upper end of locating rod is arranged in 16 upper end of locating rod
It is screwed on nut across the centre bore of template 13, is fixed template (13) in vertical direction.
Clamping unit 15 at least by sliding block 156, clamping screw 151 and with clamp face upper clamping block 154 and lower clamping
Block 155 forms, and sliding block 15 carries out positioning up and down on indexing bracket 14, and rabbets 156 lower end of sliding block in arc groove 1421
Face paste connects the two in upper clamping block 154 and by screw, and the clamping face paste of upper clamping block is in the upper end of turntable side 111
Face, 151 top spiral of clamping screw, which connects upper clamping block and wears, connects sliding block 156, and the connection of 151 lower removable of clamping screw is lower to be clamped
Block 155.When turn clamping screw 151, clamping screw 151 axially moves while rotation, drives lower 155 axis of gripping block
It moves up and down, the clamping of lower gripping block is moved upwardly, and the lower end surface of turntable side 111, clamping rotary disk side are tightly attached to
111 or the clamping of lower gripping block move downwards, unclamp the clamping to clamping rotary disk side 111, the face of clamping is in turntable side
Below 111 lower end surface.Upper clamping block and lower gripping block 155 with sliding block arc groove in slide, in this way when clamping unit presss from both sides
When tight 11 avris of turntable, by pushing clamping screw 151, make the slip band turn disk 11 of 156 opposing arcs slot 1421 of sliding block
Indexing rotation, i.e. the rotation corresponding arc chord angle of arc groove 1421, make the porous workpiece 20 on turntable 11 rotate with it next add
Work station.The clamping to turntable 11 is unclamped by turn clamping screw 151 later, makes clamping unit 15 by sliding block 15 along circular arc
Slot 1421 slides, and returns to initial position, prepares next indexing rotation.
Such as Fig. 5,6, a preferred slide block structure, which includes convex shoulder 1561 and slider body 1562, sliding block sheet
Body is cylindrical, and the rubbing surface of sliding block and arc slot 1421 can reduce to a line, the diameter and arc groove 1421 of slider body
Groove width be adapted；Sliding block is positioned on coulisse with convex shoulder 1561, and slider body 1562 is embedded in arc groove 1421, lower end
It is against on the upper surface of the lower gripping block 155 of 14211 lower end of arc groove, and is connect by screw with the lower gripping block 155.
Support one of above-mentioned clamping unit 15 specific indexing bracket 14 can at least by arc panel 141, coulisse 142,
Screw rod 144, fan-shaped movable block 143 and rocker arm 145 form, and arc panel 141 is vertically set in rack 30, arc panel 141 it is upper
End is equipped with positioning groove, and the coulisse 142 with arc-shaped side edges is positioned by the positioning groove in 141 upper end of arc panel, and by
Screw is connected horizontally on the upper end of arc panel 141, and coulisse 142 is equipped with above-mentioned arc groove 1421.For hole location on workpiece
It is different require, can be by the way that the coulisse 142 of different arc chord angles be arranged, or pass through and feeler gauge 60 is set in arc groove 1421 carries out
Arc groove corresponds to the adjusting of arc chord angle α, referring to Fig. 7.Fan-shaped movable block 143 is slidably connected on the guide rail 302 of rack 30, right
Title center is equipped with screw hole compatible with external screw thread on screw rod, and the inside and outside arc surface of fan-shaped movable block is corresponding in rack respectively
The inner arc surface of exterior arc surface and arc panel 141 is adapted.One end of screw rod 144 is equipped with positioning shaft shoulder 1441, and screw rod 144 is logical
It crosses the positioning shaft shoulder to be rotatably arranged in the corresponding hole of rack 30, the port in hole is equipped with end cap 301, the end of end cap 301
It is against in the positioning shaft shoulder 1441 of screw rod, rotate screw rod 144 can only cannot move axially.The other end of screw rod 144 is connected with
Rotational handle 146, turn rotational handle 146, screw rod 144 rotate, and are engaged by screw rod with screw hole on sector movable block 143,
Move radially fan-shaped movable block 143 along 302 opposite base of guide rail, so that clamping unit 15 is in the operating position in left side
With right side off-position, the clamping to turntable side 111 is completed in operating position and it is driven to do indexing rotation, in the non-work of work
Position makes clamping unit remove motion path when turntable moves up and down, and will not move up and down to form movement interference to turntable.
In order to guarantee that clamping screw 151 expeditiously moves axially, the possible rotation of upper clamping block 154 is prevented, upper
Elastic element is set in gripping block 154, is allowed to flexibly be resisted against on arc panel.Peace is set specifically on upper clamping block 154
Hole is filled, to elastic elements, such as Fig. 8, Fig. 9, the present embodiment uses two parallel mounting holes, and each mounting hole is interior by interior
Mainly by spring 1542 and the elastic element that pearl 1541 forms is buckled to being sequentially placed outside, and in arc panel inner arc surface respective heights
Setting button pearl slot compatible with button pearl on position.The rear end face of upper clamping block 154 is mutually to fit with the inner arc surface of arc panel 152
The arc surface matched can be preferably resisted against on the inner arc surface of arc panel 152 in this way, and the front end face of upper clamping block 154 is and turns
The compatible inner arc surface of corresponding exterior arc surface of the side 111 of disk 11, can preferably increase folder in a limited space in this way
Hold area.
To prevent lower gripping block 155 to be possible to that clamping screw 151 is followed to rotate, it is respectively set in 154 two sides of upper clamping block
The guide plate 1543 extended downwardly forms the guide groove that 154 lower end of upper clamping block supplies lower gripping block 155 to move up and down.Furthermore in order to
It is glued respectively on the correspondence clamping face of the frictional force that increase clamps, upper clamping block (154) and lower gripping block (155) clamping rotary disk side
Tie rubber sheet gasket 50.
Such as Figure 10, stepped hole 1551 is set in lower gripping block 155, and the shaft shoulder 1511 is set on clamping screw 151, is clamped
Screw rod 151 is flexibly connected down gripping block 155 with the cooperation of stepped hole 1551 by the shaft shoulder 1511.
Such as Figure 11, Figure 12, for the ease of turn clamping screw 151, clamping unit is also provided with operation handle 152 and nut
157, corresponding 151 upper end of clamping screw is successively arranged limit external screw thread 1514 and the non-cylindrical with kidney-shaped section from top to bottom
Face 1512, operation handle 152 are equipped with kidney slot compatible with non-cylindrical 1512, and operation handle 152 is inserted by the kidney slot
It connects in the non-cylindrical 1512 of clamping screw 151, relatively rotate the two can not, in the limit for exposing 152 upper end of operation handle
Be screwed on nut 157 on the external screw thread 1514 of position, is defined 152 axial position of operation handle.Accordingly, turn operation handle 152 can
Clamping screw 151 is driven to rotate, to make lower gripping block 155 move up and down along the axial direction of clamping screw 151, in turn manipulator
It, can be by pushing operation handle 152 to make sliding block 15 when handle 152 makes lower gripping block 155 move up the side 111 of clamping rotary disk
It is moved along arc groove, to make turntable 11 that porous workpiece 20 be driven to rotate a circular arc slot length.
Claims (10)
1. the hole drilling die of porous workpiece, in the rack (30) of drilling machine, porous workpiece center has centre bore, and feature exists
In: the mold includes turntable (11), template (13), locating rod (16), the indexing bracket (14) equipped with arc groove and clamps single
First (15)；The locating rod (16) is vertically arranged on the rack；The turntable (11), which is worn, to be connect locating rod (16) and can be rotatably set
On rack (30), porous workpiece is located on the turntable (11)；The template (13) is equipped with die hole and centre bore and one end
Equipped with first shaft shoulder, template (13) is positioned at porous workpiece by first shaft shoulder；Indexing bracket (14) is slidably disposed within turntable side,
Clamping unit (15) be placed in indexing bracket on and at least by sliding block (156), clamping screw (151) and with clamping face upper clamping
Block (154) and lower gripping block (155) composition, sliding block (156) are located in indexing bracket (14) upper end and rabbet in arc groove
(1421) it is connected in and with the upper clamping block (154) for being close to lower end surface, the clamping face of upper clamping block is in turntable side (111)
Upper surface position, clamping screw (151) top spiral connect upper clamping block and wear and connect sliding block (156), clamping screw (151) lower part
It is flexibly connected lower gripping block (155), the clamping face of lower gripping block (155) rotates with clamping screw (151) and moved up and down, and is in
The lower end surface of turntable side (111) or lower position, upper clamping block and lower gripping block (155) are slided in arc groove with sliding block.
2. hole drilling die according to claim 1, it is characterised in that: the hole drilling die further includes that center is equipped with jack hole
(102) pedestal (10), the pedestal (10) are worn by jack hole (102) and connect locating rod (16) and be fixed on rack (30), and described turn
Disk (11) is cylindrical shape, and the circumference in the open end of tubular turntable (11) is arranged in the turntable side (111), and turntable (11) is logical
Cylindrical cavity is crossed to be supported on pedestal (10) and be rotatably arranged on rack (30).
3. hole drilling die according to claim 1, it is characterised in that: the locating rod (16) is equipped with positioning sleeve (162),
This is socketed on locating rod (16) with having positioning sleeve (162) interference fit or clearance fit, and with the axial direction on locating rod (16)
Positioning shaft shoulder (163) makees axially position；It positions set upper side and is equipped with the circumferentially positioned shaft shoulder (1122), porous workpiece is worn by centre bore
Cover the circumferentially positioned shaft shoulder make it is circumferentially positioned.
4. hole drilling die according to claim 3, it is characterised in that: the template (13) is equipped with second shaft shoulder (132),
Second shaft shoulder (132) forms the annulus between second shaft shoulder and template end face between template end face and first shaft shoulder
Shape chip space.
5. hole drilling die according to claim 4, it is characterised in that: locating rod (16) upper end is equipped with external screw thread, fixed
The centre bore that position bar (16) upper end passes through template (13) is screwed on nut, is fixed template (13) in vertical direction.
6. hole drilling die according to claim 2, it is characterised in that: the indexing bracket (14) includes being vertically set on machine
Arc panel (141) on frame, be connected horizontally on arc panel upper end and be equipped with the coulisse (142) of arc groove (1421), one end connects
It connects and axially position screw rod (144) on the base, fan-shaped moves equipped with screw hole and by what the screw hole spiral was connected on screw rod
Motion block (143) and the rocker arm (145) being connected on screw rod.
7. hole drilling die according to claim 6, it is characterised in that: the sliding block (156) includes convex shoulder (1561) and slides
Block body (1562), slider body is cylindrical, and diameter is adapted with the groove width of arc groove (1421)；Sliding block is with convex shoulder (1561)
It is positioned on coulisse, slider body (1562) is embedded in arc groove (1421), and by screw and is located at arc groove (1421)
The lower gripping block (155) of lower end connects.
8. hole drilling die according to claim 6, it is characterised in that: described upper clamping block (154) one end elasticity against
On the inner arc surface of arc panel；Upper clamping block (154) lower end is equipped with the guide groove moved up and down for lower gripping block (155)；Upper folder
Sticking rubber gasket is distinguished on the correspondence clamping face of tight block (154) and lower gripping block (155) clamping rotary disk side.
9. hole drilling die according to claim 6, it is characterised in that: the lower gripping block (155) is equipped with stepped hole
(1551), clamping screw (151) is equipped with the shaft shoulder (1511), and clamping screw (151) passes through the shaft shoulder (1511) and stepped hole (1551)
Cooperation be flexibly connected lower gripping block (155).
10. hole drilling die according to claim 6, it is characterised in that: the clamping unit (15) further includes operation handle
(152) and nut, clamping screw (151) upper end are successively arranged limit external screw thread and non-cylindrical, manipulator from top to bottom
Handle (152) is equipped with non-circular hole compatible with the non-cylindrical, and operation handle is non-by the handle that the non-circular hole is plugged in operation
Cylindrical surface, nut, which is screwed on, to be limited on external screw thread, limits the axial position of operation handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821404068.6U CN209021288U (en) | 2018-08-29 | 2018-08-29 | The hole drilling die of porous workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821404068.6U CN209021288U (en) | 2018-08-29 | 2018-08-29 | The hole drilling die of porous workpiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209021288U true CN209021288U (en) | 2019-06-25 |
Family
ID=66876689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821404068.6U Withdrawn - After Issue CN209021288U (en) | 2018-08-29 | 2018-08-29 | The hole drilling die of porous workpiece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209021288U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971578A (en) * | 2018-08-29 | 2018-12-11 | 镇江汇通金属成型有限公司 | The hole drilling die of porous workpiece |
-
2018
- 2018-08-29 CN CN201821404068.6U patent/CN209021288U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108971578A (en) * | 2018-08-29 | 2018-12-11 | 镇江汇通金属成型有限公司 | The hole drilling die of porous workpiece |
| CN108971578B (en) * | 2018-08-29 | 2024-03-12 | 镇江汇通金属成型有限公司 | Drilling mould for porous workpiece |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190625 Effective date of abandoning: 20240312 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20190625 Effective date of abandoning: 20240312 |
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| AV01 | Patent right actively abandoned |