CN204209478U - GIS series fuel reserve tank processing specificity modular fixture - Google Patents
GIS series fuel reserve tank processing specificity modular fixture Download PDFInfo
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- CN204209478U CN204209478U CN201420520050.8U CN201420520050U CN204209478U CN 204209478 U CN204209478 U CN 204209478U CN 201420520050 U CN201420520050 U CN 201420520050U CN 204209478 U CN204209478 U CN 204209478U
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Abstract
The utility model relates to a kind of GIS series fuel reserve tank processing specificity modular fixture.Adopt this sleeve clamp, decrease a procedure than conventional machining process, working (machining) efficiency improves 20%; Clamping is convenient and swift with dismounting workpiece, and clamping and take-down time shorten 60%; Workpiece fixing is easy to adjust, and positioning datum is accurately reliable, and improve the crudy of workpiece, machining accuracy and form and position tolerance precision improve 45%; Initial workpiece location regulate fixing after, during subsequent workpiece clamping, without the need to again regulating location, improve production efficiency, single-piece production cycle time 30%; Improve the crudy in sealing flange face, improve the sealing after fuel reserve tank assembling, insulating oil consumption reduces 15%.
Description
Technical field
The utility model relates to a kind of jig, is specifically related to a kind of specificity combined type jig for oil-immerged inversed current transformer crucial auxiliary equipment fuel reserve tank machining.
Background technology
Current transformer fuel reserve tank is the critical component of oil-immerged inversed current transformer, be widely used in high pressure, super-pressure, the various electric pressure switchgear such as extra-high voltage, it is made up of casing and case lid, Main Function stores and provide the insulating oil needed for paper oil insulation, maintain power system to the dielectric level of high-voltage mutual inductor at run duration, the quality of its performance is to preventing into tide water inlet, prevent entering of introduced contaminants, prevent insulating oil from leaking and reduce oil consumption, extension device service life, and upkeep operation and providing is provided draws oil sample or entering in a large number if desired, drain the oil or the aspect such as a small amount of repairing significant.After fuel reserve tank produces spray with casting technique, recycling machining center carries out machining to spray, and jig is specificity technological equipment indispensable in fuel reserve tank mechanical processing process.
Jig be dimensions for making workpiece can reach drawing to specify, geometry and with the technical requirements such as the relative-position error on other surface, workpiece is accurately located during processing work by lathe, to make workpiece obtain tram relative to lathe and cutter, and the device of workpiece reliably being located, clamping.Can be divided into by handling characteristics: universal fixture, specificity fixture, flexible jig, built-up jig.Usually be made up of setting element, clamping device, tool setting induction element, indexing means, Connection Element and clamp body etc.The quality of jig Design, has direct impact to the product quality of workpiece, production efficiency, processing cost and production safety etc.For this reason, its practicality, economy, reliability etc. must be considered when designing fixture.
As shown in Figure 1, Figure 2, Figure 3 shows, traditional fuel reserve tank processing technology is divided into three process, operation 1, operation 2 and operation 3.Operation 1: with large end flanges back side a for positioning reference plane, the little end flange face g of roughing, i.e. work step 01, and using this face g as the positioning reference plane of operation 2.Operation 2: using rough machined little end flange face g as positioning reference plane, this operation comprises 3 work steps, work step 01, the large end flanges end face of Milling Process; Work step 02, boring; Work step 03, tapping.Operation 3: 4 through hole f symmetrical on the large end flange face e after processing using operation 2 are as positioning datum, and this operation comprises 6 work steps, work step 01, and small end end face of flange is processed in milling (fine finishining); Work step 02, little end flange face boring; Work step 03, Milling Process side raised head face; Work step 04, side boss endoporus bore hole; Work step 05, side boss is holed; Work step 06, tapping.
The conventional machining process of fuel reserve tank adopts two cover jigs: scroll chuck (universal fixture), specificity built-up jig 100.Operation 1 and operation 3 adopt specificity built-up jig 100 simultaneously, and operation 2 adopts scroll chuck.
As shown in Figure 4, the specificity built-up jig 100 of tradition machining, this fixture 100 comprises base plate 101, clamping device (in figure, element 102 ~ 105, it is positioner that operation 3 adds man-hour), positioner is (in figure, element 106 ~ 109, it is clamping device that operation 3 adds man-hour) and some Connection Elements composition.Clamping device is made up of 8 pillars, 102,2 crossbeams, 103,4 cylinders, 104,4 positioning studs 105, base plate 101 each side installs 4 pillars 102,2 crossbeams 103 are arranged on 4 pillar 102 tops of base plate 101 left and right sides respectively, 4 cylinders 104 are arranged on base plate 101 left and right sides, 2, every side is positioned at immediately below crossbeam 103,4 positioning studs 105 are arranged on the top of 4 cylinders 104 respectively, the top of 4 positioning studs 105 is through the through hole that crossbeam 103 is offered, and 4 through hole f positions and the size of these 4 through holes and workpiece are corresponding.Positioner is made up of 4 square pillars, 106,4 support plates, 107,4 bolts, 108,4 locking nuts 109, base plate 101 each side installs 2 square pillars 106, lay respectively at the outside of both sides crossbeam 103, corresponding with the installation site of 4 cylinders 104,4 support plates 107 are arranged on 4 square pillar 106 tops respectively, 4 bolts 108 are arranged on the close product side of 4 support plates 107 respectively, i.e. large end flanges back side, locking nut 109 object is stationary positioned bolt 108, prevents from adding man-hour bolt and 108 to loosen.
As shown in Figure 5, the clamping of operation 1 workpiece and dismounting during traditional machining, front 4 cylinders 104 of clamping all in off working state, support plate 107 and bolt 108 in running order all the time.First large for workpiece end is pushed between 2 crossbeams 103 and 4 bolts 108 centre of fixture 100 downwards by side, above 2 crossbeams 103 being placed on fixture 100, then cylinder 104 is risen, stud 105 is driven to rise to operating position, finally rotate 4 bolts 108 and compress large end flanges back side a, and regulate 4 bolts, make workpiece be in level, complete location and the clamping of workpiece.During dismounting workpiece, fall 4 cylinders 104, workpiece is extracted out by side.When using the positioner of this fixture to Workpiece fixing, workpiece is in overhead positions, due to large end flanges back side a upwards, location regulates inconvenient, regulate the thrust needing to resist cylinder 104 during bolt 108, manual adjustment location is difficult to contend with it, and the aligned contact point of large end flanges back side a is not fixed, and each clamping of workpiece all needs re-adjustments to locate.Little end flange face g crudy as postorder positioning reference plane is difficult to ensure, so that affects the crudy of operation 2,3, and cause two end flanges thickness evenness separately poor, position dimension and the form and position tolerance precision at other position are low, and production efficiency is low simultaneously.
The clamping of operation 2 workpiece and dismounting during tradition machining, first scroll chuck is arranged on the work top of machining center, then workpiece small end is placed on downwards on scroll chuck, because large end flanges is not circular, need through repeatedly tool setting, the adjustment location of workpiece, makes workpiece front, rear, left and right placed in the middle, finally by Workpiece clamping.Use scroll chuck to Workpiece clamping, each workpiece all needs repeatedly tool setting to regulate location, and production efficiency is low, and large end flanges is in overhead positions, and flatness, flange thickness and form and position tolerance precision are difficult to ensure, so that affect the crudy of operation 3.
As shown in Figure 6, the clamping of operation 3 workpiece and dismounting during traditional machining, front 4 cylinders 104 of clamping are all in off working state, and support plate 107 and bolt 108 go back to outside.First cylinder 104 is risen, stud 105 is driven to rise to operating position, then the large end of workpiece after operation 2 being processed is placed on above 2 crossbeams 103 of fixture 100 downwards, and make the upper end of 4 positioning studs 105 through 4 through hole f in the large end flange face of workpiece, but be no more than large end flanges back side a, then support plate 107 and bolt 108 is forwarded to operating position, with bolt 110, support plate 107 is fixed, finally rotate bolt 108 and compress large end flanges back side a, complete location and the clamping of workpiece.During dismounting workpiece, first rotate bolt 108 and depart from large end flanges back side a, then unclamp bolt 110, support plate 107 and bolt 108 are gone back to outside, finally fall cylinder 104, make stud 105 depart from 4 through hole f in large end flange face, workpiece unhinderedly can be taken off.Use the clamping device of this fixture to Workpiece clamping, inconvenient operation, clamping speed is slow, and batch production efficiency is low.
Conventional machining process process chart
Therefore, in order to overcome the problems referred to above, being necessary to provide a kind of and utilizing the combination of simple economy to assemble, being applicable to the specificity fixture that fuel reserve tank processing needs.
Utility model content
The problem of " low, the position dimension of two ends flange thickness qualification rate and form and position tolerance precision is low, production efficiency is low, sealing surface is of poor quality, fuel reserve tank fitting tight is poor, insulating oil consumption is high " when using traditional clamping tool for machine work processing fuel reserve tank to overcome, the utility model provides a kind of specificity modular fixture, this fixture not only registration, clamp firm, improve the sealing after the assembling of machining accuracy, sealing surface quality and fuel reserve tank, and clamping and dismounting workpiece convenient and swift, greatly improve machining production efficiency.
The utility model solves the technical scheme that its technical problem adopts: the utility model comprises base plate (201), up/down positioning clamping device, left/right positioning clamping device, front/rear positioning clamping device and is somely connected and fixed element composition:
Up/down positioning clamping device: location division is made up of 4 pillars (202), 4 bolts (203), 4 locking nuts 204,4 pillars (202) are uniform is arranged on base plate (201) left and right sides, and 4 bolts (203) are arranged on the top of 4 pillars (202) respectively; Clamping section one is made up of 4 pillars (202), 2 crossbeams (205), 4 cylinders (206), 4 pillars (202) are uniform is arranged on both sides before and after base plate 201,2 crossbeams (205) are arranged on the top of 2 pillars (202) in both sides, front and back respectively, and 2 cylinders (206) are respectively installed at the two ends, top of 2 crossbeams (205); Clamping section two is made up of 4 swing clamp cylinders (207), respectively the uniform centre being arranged on base plate (201);
Left/right positioning clamping device: location division is made up of crossbeam (208), bolt (209), locking nut (210), crossbeam (208) is arranged on the top of two pillars (202) in left side, bolt 209 is arranged on two of crossbeam 208, is namely positioned at the both sides of workpiece left and right side boss; Clamping section is made up of crossbeam (211), pillar (212), cylinder (213), crossbeam (211) is arranged on the top of two pillars (202) on right side, cylinder (213) is arranged on the inner side of crossbeam (211), and pillar (212) is arranged on crossbeam (211) middle lower portion;
Front/rear positioning clamping device: location division is made up of gripper shoe (214), bolt (215), locking nut (216), base plate 201 offers rectangular channel, to ensure installation site and the operating space of location division, gripper shoe 214 is arranged in the rectangular channel of base plate (201), and bolt (215) is arranged in gripper shoe (214); Clamping section is made up of gripper shoe (217), cylinder (218), gripper shoe (217) is arranged on base plate (201), to ensure the installation site of cylinder 218, (201) offer rectangular through-hole to base plate, to ensure installation site and the operating space of clamping section, cylinder (218) is arranged on the join domain of base plate (201) and gripper shoe (217).
The beneficial effects of the utility model are: adopt this sleeve clamp, and decrease a procedure than conventional machining process, working (machining) efficiency improves 20%; Clamping is convenient and swift with dismounting workpiece, and clamping and take-down time shorten 60%; Workpiece fixing is easy to adjust, and positioning datum is accurately reliable, and improve the crudy of workpiece, machining accuracy and form and position tolerance precision improve 45%; Initial workpiece location regulate fixing after, during subsequent workpiece clamping, without the need to again regulating location, improve production efficiency, single-piece production cycle time 30%; Improve the crudy in sealing flange face, improve the sealing after fuel reserve tank assembling, insulating oil consumption reduces 15%.
Accompanying drawing explanation
Fig. 1,2 is mechanical processing and positioning pinching process design diagrams.
Fig. 3 is traditional machining specificity fixture 100 structural representation.
Fig. 4 is the signal of traditional machining operation 1 clamping workpiece.
Fig. 5 is the signal of traditional machining operation 3 clamping workpiece.
Fig. 6 is the utility model operation 1 fixture 200 structural representation.
Fig. 7,8 is the utility model operation 1 clamping workpiece schematic diagrames.
Fig. 9 is the utility model operation 2 fixture 300 structural representation.
Figure 10 is the utility model operation 1 clamping workpiece schematic diagram.
In figure, the large end flanges back side of a., the little end flanges inner cavity surface of b., c. left/right side, in face of d. small end flange excircle/and latter two some position, the large end flange face of e., the large end flange face of f. 4 through holes, the little end flange face of g.
101. base plate, 102. circle pillars, 103. horizontal gird, 104. cylinder, 105. positioning stud, 106. side's pillars, 107, support plate, 108. bolt, 109. locking nut, 110. bolt, 201. base plate, 202. circle pillars, 203. bolt, 204. locking nut, 205. horizontal gird, 206. cylinder, 207. swing clamp cylinder, 208. vertical crossbeams, 209. bolt, 210. locking nut, 211. band bearing vertical crossbeams, 212. circle pillars, 213. cylinder, 214. gripper shoe, 215. bolt, 216. locking nut, 217. gripper shoe, 218. cylinder, 301. base plate, 302. circle pillars, 303. horizontal gird, 304. cylinder, 305. positioning stud, 306. swing clamp cylinder.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
1. machining process route design.Shown in seeing table, the technical process of machining is divided into twice manufacturing procedure: operation 1 and operation 2.Operation 1 comprises 3 work steps: work step 01, the large end flanges end face of Milling Process; Work step 02, boring; Work step 03, tapping.Operation 2 comprises 6 work steps: work step 01, Milling Process small end end face of flange; Work step 02, small end flange drilling; Work step 03, Milling Process side raised head face; Work step 04, side boss endoporus bore hole; Work step 05, side boss is holed; Work step 06, tapping.
2. positioning datum and clipping variation.According to the machining process route described in following table, design positioning datum and the fixture scheme of each operation.Shown in Fig. 1,2, operation 1 using large end flanges back side a as positioning datum, and using large end flanges back side a and little end flanges inner cavity surface b as the clamping point in up/down direction; Surface using c(boss both sides, left/right side, housing position) as the positioning datum in left/right direction and clamping point; In face of small end flange excircle/latter two some position d is as the positioning datum in front/rear direction and clamping point.Operation 2 process using operation 1 after large end flange face e on symmetrical 4 through hole f as the positioning datum in direction, front, rear, left and right, using the large end flange face e after processing and large end flanges back side a as the clamping point in up/down direction.
3. jig Design and production program.According to the machining process route design described in following table, every procedure needs a sleeve clamp, i.e. operation 1 fixture and operation 2 fixture, and two sleeve clamps adopt identical structural design.The structure of fixture comprises: clamp body, setting element, clamping device and Connection Element.The structure of clamp body is made up of base plate, pillar, crossbeam and Connection Element, and structure is simple, is easy to make and install; Setting element is made up of screw bolt and nut, regulates Workpiece fixing with bolt, makes workpiece occupy clamp body center, convenient and swift, registration, with nut by bolt-locking, without the need to repeating tool setting and regulating location during batch machining; Clamping device adopts cylinder and swing clamp cylinder combination clamping mode, and mechanical automation degree is high, is easy to clamping and dismounting workpiece.
See Fig. 6.Operation 1 fixture 200, comprise base plate 201, up/down positioning clamping device (in figure, element 202 ~ 207), left/right positioning clamping device (in figure, element 208 ~ 213), front/rear positioning clamping device (in figure, element 213 ~ 218) and some be connected and fixed element composition.
Up/down positioning clamping device.Location division is made up of 4 pillars, 202,4 bolts, 203,4 locking nuts 204,4 pillars 202 are uniform is arranged on base plate 201 left and right sides, 4 bolts 203 are arranged on the top of 4 pillars 202 respectively, locking nut 204 object be convenient to batch production time initial workpiece location processing qualified after, stationary positioned bolt 203, avoids repeating positioning action.Clamping section 1 is made up of 4 pillars, 202,2 crossbeams, 205,4 cylinders 206,4 pillars 202 are uniform is arranged on both sides before and after base plate 201,2 crossbeams 205 are arranged on the top of 2 pillars 202 in both sides, front and back respectively, and 2 cylinders 206 are respectively installed at the two ends, top of 2 crossbeams 205.Clamping section 2 is made up of 4 swing clamp cylinders 207, respectively the uniform centre being arranged on base plate 201.
Left/right positioning clamping device.Location division is made up of crossbeam 208, bolt 209, locking nut 210, crossbeam 208 is arranged on the top of two pillars 202 in left side, bolt 209 is arranged on two of crossbeam 208, namely the both sides of workpiece left and right side boss are positioned at, use locking nut 210 object be when being convenient to batch production the processing of initial workpiece location qualified after, stationary positioned bolt 209, avoids repeating positioning action.Clamping section is made up of crossbeam 211, pillar 212, cylinder 213, crossbeam 211 is arranged on the top of two pillars 202 on right side, cylinder 213 is arranged on the inner side of crossbeam 211, pillar 212 is arranged on crossbeam 211 middle lower portion, play supporting traverse 211, when avoiding cylinder 213 clamping work pieces, crossbeam 211 is out of shape.
Front/rear positioning clamping device.Location division is made up of gripper shoe 214, bolt 215, locking nut 216, base plate 201 offers rectangular channel, to ensure installation site and the operating space of location division, gripper shoe 214 is arranged in the rectangular channel of base plate 201, bolt 215 is arranged in gripper shoe 214, locking nut 216 object be convenient to batch production time initial workpiece location processing qualified after, stationary positioned bolt 215, avoids repeating positioning action.Clamping section is made up of gripper shoe 217, cylinder 218, gripper shoe 217 is arranged on base plate 201, to ensure the installation site of cylinder 218, base plate 201 offers rectangular through-hole, to ensure installation site and the operating space of clamping section, cylinder 218 is arranged on the join domain of base plate 201 and gripper shoe 217.
See Fig. 7,8.Operation 1 clamping workpiece, before clamping, each cylinder is all in off working state, first workpiece is placed on operation 1 fixture 200, large end flanges back side a is placed on 4 bolts 203, regulate 4 bolts 203, whole workpiece is horizontal, to be positioned regulate after, with 4 locking nuts 204,4 bolts 203 are locked; Regulate 2 bolts 209, make width of the workpiece left/right direction occupy operation 1 fixture 200 and hit exactly, simultaneously length direction is parallel with operation 1 fixture 200 fore-and-aft direction, to be positioned regulate after, with 2 locking nuts 210,4 bolts 209 are locked; Regulate bolt 215, make the front/rear direction of Workpiece length occupy operation 1 fixture 200 and hit exactly, to be positioned regulate after, with locking nut 216, bolt 215 is locked; Forward the pressure arm of 4 swing clamp cylinders 207 to operating position, pressure arm moves downward and drives hold-down bolt to compress little end flanges surface of internal cavity b simultaneously; Finally 4 cylinders 206,2 cylinders 213, cylinders 218 are risen, compress end flanges back side a, side c, small end flange excircle millet cake position d respectively.During dismounting workpiece, first moved up by the pressure arm of 4 swing clamp cylinders 207, then go back to inside workpiece, last 4 cylinders 206,2 cylinders 213, cylinders 218, unhinderedly can take off workpiece.
See Fig. 9.Operation 2 fixture 300, comprises base plate 301, positioner (in figure, element 302 ~ 305), clamping device (in figure, element 306) and some elements that is connected and fixed and forms.
Positioner is made up of 8 pillars, 302,2 crossbeams, 303,4 cylinders, 304,4 positioning studs 305, base plate 301 each side installs 4 pillars 302,2 crossbeams 303 are arranged on 4 pillar 302 tops of base plate 301 left and right sides respectively, 4 cylinders 304 are arranged on base plate 301 left and right sides, 2, every side is positioned at immediately below crossbeam 303,4 positioning studs 305 are arranged on the top of 4 cylinders 304 respectively, the top of 4 positioning studs 305 is through the through hole that crossbeam 303 is offered, and 4 through hole f positions and the size of these 4 through holes and workpiece are corresponding.
Clamping device is made up of 4 swing clamp cylinders 306, and base plate 301 each side installs 2 swing clamp cylinders 306, lays respectively at the outside of both sides crossbeam 303, corresponding with the installation site of 4 cylinders 304.
See Figure 10.Operation 2 clamping workpiece, before clamping, each cylinder is all in off working state, first cylinder 304 is risen, stud 305 is driven to rise to operating position, then the large end of workpiece after operation 1 being processed is placed on above 2 crossbeams 303 on operation 2 fixture 300 downwards, and make the upper end of 4 studs 305 through 4 logical f holes in the large end flange face of workpiece, but be no more than large end flanges back side a, finally forward the pressure arm of swing clamp cylinder 306 and hold-down bolt to operating position, pressure arm moves downward and compresses large end flanges back side a, completes clamping and the location of workpiece.During dismounting workpiece, first the pressure arm of swing clamp cylinder 306 is moved up, then go back to outside workpiece, finally fall cylinder 304, make stud 305 depart from 4 through hole f in large end flange face, workpiece unhinderedly can be taken off.
Claims (1)
1.GIS series fuel reserve tank processing specificity modular fixture, is characterized in that, comprises base plate (201), up/down positioning clamping device, left/right positioning clamping device, front/rear positioning clamping device and some elements that is connected and fixed and forms:
Up/down positioning clamping device: location division is made up of 4 pillars (202), 4 bolts (203), 4 locking nuts (204), 4 pillars (202) are uniform is arranged on base plate (201) left and right sides, and 4 bolts (203) are arranged on the top of 4 pillars (202) respectively; Clamping section one is made up of 4 pillars (202), 2 crossbeams (205), 4 cylinders (206), 4 pillars (202) are uniform is arranged on both sides before and after base plate (201), 2 crossbeams (205) are arranged on the top of 2 pillars (202) in both sides, front and back respectively, and 2 cylinders (206) are respectively installed at the two ends, top of 2 crossbeams (205); Clamping section two is made up of 4 swing clamp cylinders (207), respectively the uniform centre being arranged on base plate (201);
Left/right positioning clamping device: location division is made up of crossbeam (208), bolt (209), locking nut (210), crossbeam (208) is arranged on the top of two pillars (202) in left side, bolt 209 is arranged on two of crossbeam 208, is namely positioned at the both sides of workpiece left and right side boss; Clamping section is made up of crossbeam (211), pillar (212), cylinder (213), crossbeam (211) is arranged on the top of two pillars (202) on right side, cylinder (213) is arranged on the inner side of crossbeam (211), and pillar (212) is arranged on crossbeam (211) middle lower portion;
Front/rear positioning clamping device: location division is made up of gripper shoe (214), bolt (215), locking nut (216), (201) offer rectangular channel to base plate, to ensure installation site and the operating space of location division, gripper shoe (214) is arranged in the rectangular channel of base plate (201), and bolt (215) is arranged in gripper shoe (214); Clamping section is made up of gripper shoe (217), cylinder (218), gripper shoe (217) is arranged on base plate (201), to ensure the installation site of cylinder (218), (201) offer rectangular through-hole to base plate, to ensure installation site and the operating space of clamping section, cylinder (218) is arranged on the join domain of base plate (201) and gripper shoe (217).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520050.8U CN204209478U (en) | 2014-09-11 | 2014-09-11 | GIS series fuel reserve tank processing specificity modular fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420520050.8U CN204209478U (en) | 2014-09-11 | 2014-09-11 | GIS series fuel reserve tank processing specificity modular fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204209478U true CN204209478U (en) | 2015-03-18 |
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ID=52978184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420520050.8U Withdrawn - After Issue CN204209478U (en) | 2014-09-11 | 2014-09-11 | GIS series fuel reserve tank processing specificity modular fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204209478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385001A (en) * | 2014-09-11 | 2015-03-04 | 江苏华江科技有限公司 | Special combined fixture for processing GIS serial oil storage tanks |
| CN107953129A (en) * | 2018-01-16 | 2018-04-24 | 湖北三叶机电制造股份有限公司 | A kind of fixture |
-
2014
- 2014-09-11 CN CN201420520050.8U patent/CN204209478U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385001A (en) * | 2014-09-11 | 2015-03-04 | 江苏华江科技有限公司 | Special combined fixture for processing GIS serial oil storage tanks |
| CN104385001B (en) * | 2014-09-11 | 2016-08-17 | 江苏华江科技有限公司 | GIS series fuel reserve tank processing specificity modular fixture |
| CN107953129A (en) * | 2018-01-16 | 2018-04-24 | 湖北三叶机电制造股份有限公司 | A kind of fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150318 Effective date of abandoning: 20160817 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |