CN206123489U - Spheroid work piece negative pressure absorption clamping utensil - Google Patents
Spheroid work piece negative pressure absorption clamping utensil Download PDFInfo
- Publication number
- CN206123489U CN206123489U CN201621183540.9U CN201621183540U CN206123489U CN 206123489 U CN206123489 U CN 206123489U CN 201621183540 U CN201621183540 U CN 201621183540U CN 206123489 U CN206123489 U CN 206123489U
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- negative pressure
- connecting portion
- positioning chamber
- negative
- pressure
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Abstract
The utility model provides a spheroid work piece negative pressure absorption clamping utensil belongs to mechanical technical field. It has solved the current problem that spheroid work piece holder clamping is chronic, the centre gripping effect is poor. This spheroid work piece negative pressure absorption clamping utensil, comprises a clamp body, it has locating surface no. 1 to press from both sides specific one end, its other end have with a locating surface parallel locating surface no. 2, inside incurvate location chamber no. 1 has on the locating surface no. 1, the internal surface in location chamber no. 1 sets up with the outer surfaces to mate of work piece, the internal surface in location chamber no. 1 has negative pressure hole no. 1 a plurality of and a location chamber intercommunication, a plurality of negative pressure holes perpendicular to locating surface no. 1 sets up, it has the negative pressure joint no. 1 that is used for with negative pressure source connection to press from both sides specific lateral wall, anchor clamps are internal to have the cavity no. 1 that connects an intercommunication with the negative pressure, inner and a cavity intercommunication of a plurality of negative pressure holes no. 1. The utility model has the advantages of the centre gripping is quick, the centre gripping is effectual.
Description
Technical field
This utility model belongs to field of mechanical technique, is related to a kind of fixture for clamping spherical workpieces, particularly a kind of
Spherical workpieces negative-pressure adsorption fixture.
Background technology
For spheroid class workpiece, in process, because its surface is curved surface, positioning is got up relatively difficult.For this purpose, in
State's patent discloses a kind of spheroid class work-piece fixation clamp [application publication number is CN104440675A], including workpiece base, work
Part base upper surface is provided with two and is parallel to each other and being provided between the vertical rod of workpiece base upper surface, two vertical rods is worn
The elastic thimble of saturating workpiece base, elastic thimble includes shell, and inside the shell is provided with and is connected with each other at least through three springs head and the tail
Three straight-bars, shell upper end is provided with taper briquetting, and lower end has threaded actuator, taper briquetting by screw connection surface
Positioned at the upper surface of workpiece base, actuator is located at the lower surface of workpiece base, the overall length of three for being connected with each other from beginning to end straight-bar
Degree is more than outer cover length.
Above-mentioned fixture can effectively be fixed to the workpiece of surface arc or generally spheroid, but its still suffer from it is following
Problem：Workpiece is put into from the sidepiece of fixture, and manual operation actuator is needed after being put into, and limited block is pressed onto on workpiece, positioning speed
Degree is slow, and the actuator that need to simultaneously adjust both sides just can guarantee that the cooperation of limited block and workpiece, it is necessary to two handss actions simultaneously, behaviour
Make difficulty greatly, and the speed of two handss cannot ensure when adjusting, and cause the fixture poor to the clamping effect of workpiece.The fixture
Complex structure, middle setting has some springs, is easily failed using a period of time spring, affects the service life of fixture, therefore needs
The clamping effect that fixture can be just effectively ensured periodically is changed to it, maintenance cost is high.
The content of the invention
The purpose of this utility model is there are the problems referred to above for existing technology, it is proposed that one kind clamping speed is fast, folder
Hold the spherical workpieces negative-pressure adsorption fixture of good stability.
The purpose of this utility model can be realized by following technical proposal：
This spherical workpieces negative-pressure adsorption fixture, including clamp body, one end of the clamp body has locating surface one, and its is another
End has the locating surface two parallel with locating surface one, it is characterised in that have the positioning for inwardly concaving on described locating surface one
Chamber one, the inner surface of the positioning chamber one is equipped with the outer surface of workpiece, and the inner surface of the positioning chamber one has some
The negative pressure hole one connected with positioning chamber one, some described negative pressure holes one are arranged perpendicular to locating surface one, the side of the clamp body
Wall has and has the cavity one connected with negative pressure joint one in the negative pressure joint one for being connected with negative pressure source, fixture body, some
The inner of negative pressure hole one connects with cavity one.
Clamp body is placed on workbench, down, spherical workpieces upward, are put into positioning to locating surface two by locating surface one
In chamber one, negative pressure joint one and negative pressure source are connected, open the switch on negative pressure joint one, make to be changed into negative pressure cavity in cavity one,
The surface negative-pressure adsorption of each negative pressure hole pair of workpieces, effectively can be positioned workpiece.
In above-mentioned spherical workpieces negative-pressure adsorption fixture, there is the positioning chamber for inwardly concaving on described locating surface two
Two, the inner surface of the positioning chamber two is equipped with the outer surface of workpiece, the inner surface of the positioning chamber two have it is some with
The negative pressure hole two of the connection of positioning chamber two, some negative pressure holes two are arranged perpendicular to locating surface two, and the side wall of the clamp body has to be used
There are the cavity two connected with negative pressure joint two, some negative pressure holes two in the negative pressure joint two being connected with negative pressure source, fixture body
The inner connect with cavity two.
Wherein switch is provided with negative pressure joint one and negative pressure joint two, can be worked independently in the presence of switch, can
So that negative pressure joint one works with negative pressure joint two simultaneously.
In above-mentioned spherical workpieces negative-pressure adsorption fixture, described positioning chamber one is in hemispherical, described positioning chamber two
In hemispherical, and the diameter of the positioning chamber two, less than the diameter of positioning chamber one, several negative pressure holes one are uniformly located at positioning chamber
In one, several negative pressure holes two are uniformly in positioning chamber two.
Because positioning chamber one is unequal with the diameter of positioning chamber two, can be used to position the workpiece of various outer diameter, make this fixture
The spherical workpieces of two kinds of various outer diameters can be processed.
In above-mentioned spherical workpieces negative-pressure adsorption fixture, described fixture is also included for making the first workpiece be maintained at fixed
Pressure ring one and the pressure ring two for making second workpiece be maintained in positioning chamber two in the chamber one of position, the minimum diameter of the pressure ring one
Less than the external diameter of the first workpiece, the minimum diameter of the pressure ring two less than second workpiece external diameter, described pressure ring one and fixture
Attachment structure one between body, before described pressure ring two and clamp body attachment structure two is provided with.When the first workpiece is encased in positioning
Behind chamber one, pressure ring one is pushed down, and workpiece comes off when negative pressure can be prevented not actuated, moreover it is possible to play dual (negative pressure and pressure ring) clamping
The purpose of the first workpiece, improves the clamping effect of fixture.The effect of pressure ring two is identical with the effect of pressure ring one, the internal diameter of pressure ring two
Less than the internal diameter of pressure ring one.Attachment structure one can be fixed on pressure ring one on clamp body, and attachment structure two can fix pressure ring two
On clamp body.
In above-mentioned spherical workpieces negative-pressure adsorption fixture, described attachment structure one includes the collar on pressure ring one
First, collar two and the elastic hook one that is articulated with clamp body and elastic hook two, collar one is located at respectively pressure ring with collar two
One opposite side, described hook one is correspondingly arranged with collar one, and hook two is correspondingly arranged with collar two.
Elastic hook one and elastic hook two are hinged on clamp body, after pressure ring one pushes down the first workpiece, pull extension
Hook one and hook two, make hook one be linked in collar one, hook two is linked in collar two, and pressure ring one is fixed in realization.
In above-mentioned spherical workpieces negative-pressure adsorption fixture, described attachment structure two includes the collar on pressure ring two
3rd, collar four and the elastic hook three that is articulated with clamp body and elastic hook four, collar three is located at respectively pressure ring with collar four
One opposite side, described hook three is correspondingly arranged with collar three, and hook four is correspondingly arranged with collar four.
In above-mentioned spherical workpieces negative-pressure adsorption fixture, the edge of the locating surface one has the connecting portion for extending laterally
One and connecting portion two, described connecting portion one and connecting portion two respectively positioned at the opposite side of clamp body, and connecting portion one be connected
The line in portion two has installing hole one, described connection perpendicular to hook one and the line of hook two on described connecting portion one
There is installing hole two in portion two.
When locating surface one is located at lower section, can be attached with connecting portion two and working face by connecting portion one, be connected
Mode can be inserted into connecting bolt in installing hole one and installing hole two to be connected, it is ensured that the stability of clamp body.
In above-mentioned spherical workpieces negative-pressure adsorption fixture, the edge of the locating surface two has the connecting portion for extending laterally
Three and connecting portion four, described connecting portion three and connecting portion four respectively positioned at the opposite side of clamp body, and connecting portion three be connected
The line in portion four has installing hole three, described connection perpendicular to hook three and the line of hook four on described connecting portion three
There is installing hole four in portion four.
In above-mentioned spherical workpieces negative-pressure adsorption fixture, the bottom of the positioning chamber one has resigning hole one；It is described fixed
The bottom in position chamber two has resigning hole two.Resigning hole one is not connected with cavity one, for accommodating the part that the first workpiece is protruded above；
Resigning hole two is not connected with cavity two, for accommodating the part that second workpiece is protruded above.
Compared with prior art, this spherical workpieces negative-pressure adsorption fixture has advantages below：
The absorption of spherical workpieces memory is clamped by negative pressure, clamping speed is fast, and it is big that positioning chamber one can clamp diameter in theory
In the spherical workpieces of the internal diameter of positioning chamber one, positioning chamber two can clamp in theory the spherical workpieces with diameter greater than the internal diameter of positioning chamber two,
It is applied widely；Pressure ring one and pressure ring two are additionally provided with, the stability of workpiece is further ensured that, the machining accuracy of workpiece is improved；
Its reasonable in design, it is easy for installation, it is applicable to various processing platforms.
Description of the drawings
Fig. 1 is a kind of structural representation of preferred embodiment that this utility model is provided.
Fig. 2 is a kind of sectional view of preferred embodiment that this utility model is provided.
In figure, 1, clamp body；2nd, positioning chamber one；3rd, negative pressure hole one；4th, negative pressure joint one；5th, cavity one；6th, positioning chamber two；
7th, negative pressure hole two；8th, negative pressure joint two；9th, cavity two；10th, pressure ring one；101st, collar one；102nd, collar two；103rd, one is linked up with；
11st, pressure ring two；111st, collar three；112nd, three are linked up with；12nd, connecting portion one；13rd, connecting portion two；14th, installing hole one；15th, installing hole
Two；16th, connecting portion three；17th, connecting portion four；18th, installing hole three；19th, installing hole four；20th, resigning hole one；21st, resigning hole two.
Specific embodiment
The following is specific embodiment of the utility model and combine accompanying drawing, further is made to the technical solution of the utility model
Description, but this utility model is not limited to these embodiments.
Spherical workpieces negative-pressure adsorption fixture as shown in Figure 1, including clamp body 1, one end of clamp body 1 has locating surface
One, its other end has the locating surface two parallel with locating surface one, has the positioning chamber 1 for inwardly concaving on locating surface one, fixed
The position inner surface in chamber 1 is equipped with the outer surface of workpiece, and there is the inner surface of positioning chamber 1 some and positioning chamber 1 to connect
Logical negative pressure hole 1, some negative pressure holes 1 are arranged perpendicular to locating surface one, and the side wall of clamp body 1 has to be used to connect with negative pressure source
The negative pressure joint 1 for connecing, has the cavity 1 connect with negative pressure joint 1 in clamp body 1, the inner of some negative pressure holes 1 and
Cavity 1 is connected.
Clamp body 1 is placed on workbench, down, upward, it is fixed that spherical workpieces are put into for locating surface one for locating surface two
In the chamber 1 of position, negative pressure joint 1 and negative pressure source are connected, open the switch on negative pressure joint 1, make to be changed into negative in cavity 1
Pressure chamber, the surface negative-pressure adsorption of one 3 pairs of workpiece of each negative pressure hole effectively can be positioned workpiece.
As depicted in figs. 1 and 2, there is the positioning chamber 26 that inwardly concaves on locating surface two, the inner surface of positioning chamber 26 with
The outer surface of workpiece is equipped with, and the inner surface of positioning chamber 26 has some negative pressure holes 27 connected with positioning chamber 26, some
Negative pressure hole 27 is arranged perpendicular to locating surface two, and the side wall of clamp body 1 has the negative pressure joint 28 for being connected with negative pressure source, folder
There is the cavity 29 connected with negative pressure joint 28, the inner of some negative pressure holes 27 connects with cavity 29 in concrete 1.Wherein bear
Crimp and be provided with switch on first 4 and negative pressure joint 28, can work independently in the presence of switch, negative pressure can be caused to connect
First 4 work simultaneously with negative pressure joint 28.
As shown in Fig. 2 positioning chamber 1 is in hemispherical, positioning chamber 26 is in hemispherical, and the diameter of positioning chamber 26 is less than fixed
The diameter in position chamber 1, uniformly in positioning chamber 1, several negative pressure holes 27 are uniformly located at positioning for several negative pressure holes 1
In chamber 26.Because positioning chamber 1 is unequal with the diameter of positioning chamber 26, can be used to position the workpiece of various outer diameter, make this folder
Tool can process the spherical workpieces of two kinds of various outer diameters.
As shown in figure 1, fixture also includes the pressure ring 1 for making the first workpiece be maintained in positioning chamber 1 and for making
Second workpiece is maintained at the pressure ring 2 11 in positioning chamber 26, and the minimum diameter of pressure ring 1 is less than the external diameter of the first workpiece, pressure ring
2 11 minimum diameter is less than the external diameter of second workpiece, attachment structure one between pressure ring 1 and clamp body 1, pressure ring 2 11 and folder
Attachment structure two was provided with before concrete 1.After the first workpiece is encased in positioning chamber 1, pressure ring 1 is pushed down, and can prevent from bearing
Workpiece comes off when pressing not actuated, moreover it is possible to play the purpose that dual (negative pressure and pressure ring) clamps the first workpiece, improves the clamping of fixture
Effect.The effect of pressure ring 2 11 is identical with the effect of pressure ring 1, and the internal diameter of pressure ring 2 11 is less than the internal diameter of pressure ring 1.Connection
Structure one can be fixed on pressure ring 1 on clamp body 1, and attachment structure two can be fixed on pressure ring 2 11 on clamp body 1.
Specifically, as depicted in figs. 1 and 2, attachment structure one includes collar 1, the collar two on pressure ring 1
102 are located at respectively with the elastic hook 1 and elastic hook two being articulated with clamp body 1, collar 1 with collar 2 102
The opposite side of pressure ring 1, hook 1 is correspondingly arranged with collar 1, and hook two is correspondingly arranged with collar 2 102.Elasticity
Link up with 1 and elastic hook two be hinged on clamp body 1, after pressure ring 1 pushes down the first workpiece, pull hook 1
With hook two, hook 1 is linked in collar 1, hook two is linked in collar 2 102, realize pressure ring one
10 fix.
As depicted in figs. 1 and 2, attachment structure two includes the collar 3 111 being located on pressure ring 2 11, collar four and is articulated with
Elastic hook 3 112 and elastic hook four on clamp body 1, collar 3 111 is with collar four respectively positioned at the relative of pressure ring 1
Side, hook 3 112 is correspondingly arranged with collar 3 111, and hook four is correspondingly arranged with collar four.
As shown in figure 1, the edge of locating surface one has the connecting portion 1 and connecting portion 2 13 for extending laterally, connecting portion one
12 opposite sides for being located at clamp body 1 respectively with connecting portion 2 13, and the line of connecting portion 1 and connecting portion 2 13 is perpendicular to extension
Hook 1 and the line of hook two, have installing hole 1 on connecting portion 1, have installing hole on described connecting portion 2 13
2 15.When locating surface one is located at lower section, can be attached with connecting portion 2 13 and working face by connecting portion 1, be connected
Mode can be inserted into connecting bolt in installing hole 1 and installing hole 2 15 to be connected, it is ensured that the stability of clamp body 1.
As shown in figure 1, the edge of locating surface two has the connecting portion 3 16 and connecting portion 4 17 for extending laterally, connecting portion three
16 opposite sides for being located at clamp body 1 respectively with connecting portion 4 17, and the line of connecting portion 3 16 and connecting portion 4 17 is perpendicular to extension
Hook 3 112 and the line of hook four, have installing hole 3 18 on connecting portion 3 16, have installing hole 4 19 on connecting portion 4 17.
As shown in Fig. 2 the bottom of positioning chamber 1 has resigning hole 1；The bottom of positioning chamber 26 has resigning hole two
21.Resigning hole 1 is not connected with cavity 1, for accommodating the part that the first workpiece is protruded above；Resigning hole 2 21 not with cavity
29 connections, for accommodating the part that second workpiece is protruded above.
Positioning chamber 1 can clamp in theory the spherical workpieces with diameter greater than the internal diameter of positioning chamber 1, and positioning chamber 26 is in theory
The spherical workpieces with diameter greater than the internal diameter of positioning chamber 26 can be clamped.
Specific embodiment described herein is only explanation for example to this utility model spirit.This utility model institute
Category those skilled in the art can make various modifications to described specific embodiment or supplement or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (9)
1. a kind of spherical workpieces negative-pressure adsorption fixture, including clamp body (1), one end of the clamp body (1) has locating surface one,
Its other end has the locating surface two parallel with locating surface one, it is characterised in that has on described locating surface one and inwardly concaves
Positioning chamber one (2), inner surface and the outer surface of workpiece of the positioning chamber one (2) be equipped with, the positioning chamber one (2)
Inner surface has some negative pressure holes one (3) connected with positioning chamber one (2), and some described negative pressure holes one (3) are perpendicular to positioning
Face one is arranged, and the side wall of the clamp body (1) has tool in the negative pressure joint one (4) for being connected with negative pressure source, clamp body (1)
The inner for having the cavity one (5) connected with negative pressure joint one (4), some negative pressure holes one (3) connects with cavity one (5).
2. spherical workpieces negative-pressure adsorption fixture according to claim 1, it is characterised in that have on described locating surface two
The positioning chamber two (6) for inwardly concaving, inner surface and the outer surface of workpiece of the positioning chamber two (6) are equipped with, the positioning
The inner surface in chamber two (6) has some negative pressure holes two (7) connected with positioning chamber two (6), and some negative pressure holes two (7) are perpendicular to fixed
Plane two is arranged, and the side wall of the clamp body (1) has in the negative pressure joint two (8) for being connected with negative pressure source, clamp body (1)
With the cavity two (9) connected with negative pressure joint two (8), the inner of some negative pressure holes two (7) connects with cavity two (9).
3. spherical workpieces negative-pressure adsorption fixture according to claim 2, it is characterised in that described positioning chamber one (2) is in
Hemispherical, described positioning chamber two (6) is in hemispherical, and the diameter of the positioning chamber two (6) is straight less than positioning chamber one (2)
Footpath, uniformly in positioning chamber one (2), several negative pressure holes two (7) are uniformly located at positioning chamber two to several negative pressure holes one (3)
(6) in.
4. spherical workpieces negative-pressure adsorption fixture according to claim 3, it is characterised in that described fixture also include for
Make pressure ring one (10) that the first workpiece is maintained in positioning chamber one (2) and for making second workpiece be maintained in positioning chamber two (6)
Pressure ring two (11), the minimum diameter of the pressure ring one (10) less than the first workpiece external diameter, the minimum of the pressure ring two (11)
Internal diameter less than second workpiece external diameter, attachment structure one between described pressure ring one (10) and clamp body (1), described pressure ring two
(11) it is provided with attachment structure two with before clamp body (1).
5. spherical workpieces negative-pressure adsorption fixture according to claim 4, it is characterised in that described attachment structure one includes
Collar one (101), collar two (102) on pressure ring one (10) and the elastic hook one (103) being articulated with clamp body (1)
With elastic hook two, collar one (101) is with collar two (102) respectively positioned at the opposite side of pressure ring one (10), described hook one
(103) it is correspondingly arranged with collar one (101), hook two is correspondingly arranged with collar two (102).
6. spherical workpieces negative-pressure adsorption fixture according to claim 4, it is characterised in that described attachment structure two includes
Collar three (111), collar four on pressure ring two (11) and the elastic hook three (112) being articulated with clamp body (1) and bullet
Property hook four, collar three (111) and collar four respectively positioned at the opposite side of pressure ring one (10), described hook three (112) and card
Circle three (111) is correspondingly arranged, and hook four is correspondingly arranged with collar four.
7. spherical workpieces negative-pressure adsorption fixture according to claim 1, it is characterised in that the edge tool of the locating surface one
There is the connecting portion one (12) and connecting portion two (13) for extending laterally, described connecting portion one (12) distinguishes position with connecting portion two (13)
In the opposite side of clamp body (1), and the line of connecting portion one (12) and connecting portion two (13) is perpendicular to hook one (103) and hook
Two line, has installing hole one (14) on described connecting portion one (12), have installing hole on described connecting portion two (13)
Two (15).
8. spherical workpieces negative-pressure adsorption fixture according to claim 1, it is characterised in that the edge tool of the locating surface two
There is the connecting portion three (16) and connecting portion four (17) for extending laterally, described connecting portion three (16) distinguishes position with connecting portion four (17)
In the opposite side of clamp body (1), and the line of connecting portion three (16) and connecting portion four (17) is perpendicular to hook three (112) and hook
Four line, has installing hole three (18) on described connecting portion three (16), have installing hole on described connecting portion four (17)
Four (19).
9. spherical workpieces negative-pressure adsorption fixture according to claim 2, it is characterised in that the bottom of the positioning chamber one (2)
Portion has resigning hole one (20)；The bottom of the positioning chamber two (6) has resigning hole two (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183540.9U CN206123489U (en) | 2016-11-03 | 2016-11-03 | Spheroid work piece negative pressure absorption clamping utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183540.9U CN206123489U (en) | 2016-11-03 | 2016-11-03 | Spheroid work piece negative pressure absorption clamping utensil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206123489U true CN206123489U (en) | 2017-04-26 |
Family
ID=58576826
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621183540.9U Expired - Fee Related CN206123489U (en) | 2016-11-03 | 2016-11-03 | Spheroid work piece negative pressure absorption clamping utensil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206123489U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906832A (en) * | 2019-11-04 | 2020-03-24 | 上海天庹智能设备有限公司 | Negative pressure positioning and measuring device and measuring method thereof |
| CN112405054A (en) * | 2020-10-30 | 2021-02-26 | 中国工程物理研究院材料研究所 | Thin-wall shell part clamping device and method |
| CN114378765A (en) * | 2021-12-30 | 2022-04-22 | 重庆川仪调节阀有限公司 | Intelligent assembly tool for ball valve body |
| CN114918458A (en) * | 2022-06-06 | 2022-08-19 | 芜湖天航重工股份有限公司 | Net rack steel ball processing device |
-
2016
- 2016-11-03 CN CN201621183540.9U patent/CN206123489U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110906832A (en) * | 2019-11-04 | 2020-03-24 | 上海天庹智能设备有限公司 | Negative pressure positioning and measuring device and measuring method thereof |
| CN110906832B (en) * | 2019-11-04 | 2021-09-03 | 上海天庹智能设备有限公司 | Negative pressure positioning and measuring device and measuring method thereof |
| CN112405054A (en) * | 2020-10-30 | 2021-02-26 | 中国工程物理研究院材料研究所 | Thin-wall shell part clamping device and method |
| CN114378765A (en) * | 2021-12-30 | 2022-04-22 | 重庆川仪调节阀有限公司 | Intelligent assembly tool for ball valve body |
| CN114378765B (en) * | 2021-12-30 | 2023-12-08 | 重庆川仪调节阀有限公司 | Intelligent assembling tool for ball valve body |
| CN114918458A (en) * | 2022-06-06 | 2022-08-19 | 芜湖天航重工股份有限公司 | Net rack steel ball processing device |
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| 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: 20170426 Termination date: 20181103 |