CN113664759B - Silicon steel sheet pressure equipment frock - Google Patents
Silicon steel sheet pressure equipment frock Download PDFInfo
- Publication number
- CN113664759B CN113664759B CN202110958410.7A CN202110958410A CN113664759B CN 113664759 B CN113664759 B CN 113664759B CN 202110958410 A CN202110958410 A CN 202110958410A CN 113664759 B CN113664759 B CN 113664759B
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- limiting
- silicon steel
- steel sheet
- limit
- pressure plate
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- 229910000976 Electrical steel Inorganic materials 0.000 title claims abstract description 76
- 230000000670 limiting effect Effects 0.000 claims abstract description 104
- 238000003825 pressing Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 18
- 230000007704 transition Effects 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000010030 laminating Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 description 1
- PXAWCNYZAWMWIC-UHFFFAOYSA-N [Fe].[Nd] Chemical compound [Fe].[Nd] PXAWCNYZAWMWIC-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The invention discloses a silicon steel sheet press-fitting tool, and relates to the technical field of motor production. The technical scheme is characterized by comprising a lower pressing plate, wherein a limiting structure is arranged on the lower pressing plate and used for limiting the silicon steel sheet in the silicon steel sheet press-mounting process; the limiting structure comprises a limiting stop capable of being adjusted in a rotating mode, the limiting stop comprises a plurality of limiting surfaces which are used for limiting silicon steel sheets with different sizes and specifications respectively, and the minimum distances between the limiting surfaces and the rotating axes of the limiting stop are different. The invention can be suitable for silicon steel sheets with various specifications, and has convenient operation and good stability.
Description
Technical Field
The invention relates to the technical field of motor production, in particular to a motor iron core, and more particularly relates to a silicon steel sheet press-mounting tool.
Background
The existing motor iron core mainly has two processing methods, one is to obtain the scattered sheets of the punched sheets by punching or linear cutting, and then to carry out secondary stacking by using a tool, and the method is suitable for mass production or processing of the iron core when the thickness of a single punched sheet is thicker. And the other method is to stick and compress silicon steel sheets by glue and then perform line cutting, and is suitable for processing small-batch iron cores with high precision requirements on thin silicon steel sheets and iron core profiles.
For the second processing mode, because the quantity is small, and after the silicon steel sheet is coated with glue, the silicon steel sheet can slide during press mounting, a larger processing allowance needs to be reserved, and the processing waste is large.
The traditional Chinese patent with publication number CN104454852A discloses a method for insulating and bonding permanent magnet neodymium iron jump magnetic steel and a special extrusion tool, wherein the extrusion tool comprises a magnetic steel positioning device, a middle guide rail is uniformly arranged in the middle of the magnetic steel positioning device, an upper pressing plate and a lower pressing plate are respectively arranged above and below the magnetic steel positioning device, a through hole is formed in the upper pressing plate, a bolt is arranged on the magnetic steel positioning device, and the bolt is positioned above the upper pressing plate.
The special extrusion frock in the above-mentioned patent prevents that permanent magnetism neodymium iron boron magnetic steel from appearing the skew in extrusion process through magnet steel positioner.
However, the structure and size of the magnetic steel positioning device are fixed, and the magnetic steel positioning device can only be applied to magnetic steel with one size specification.
The existing chinese patent publication No. CN111327164A discloses a silicon steel sheet laminating device and a silicon steel sheet laminating method, the laminating device includes a bottom plate and a limiting structure, the bottom plate has a laminating area for placing a plurality of silicon steel sheets, the limiting structure is disposed on the bottom plate and located at the periphery of the laminating area, and is used for limiting the plurality of silicon steel sheets in the circumferential direction of the plurality of silicon steel sheets; the limiting structure comprises a plurality of limiting blocks, and the limiting blocks are arranged at intervals along the circumferential direction of the overlapped area.
The laminating device in the patent carries out spacingly to the circumference of a plurality of silicon steel sheets through a plurality of stoppers, avoids the silicon steel sheet to produce offset at range upon range of in-process. The limiting block is movably arranged on the bottom plate in an adjustable mode and can be suitable for silicon steel sheets of various sizes, specifically, one of the limiting block and the bottom plate is provided with a long hole extending along the movable adjusting direction of the limiting block, and the other corresponding long hole is provided with a matching hole.
However, the above patent is applicable to silicon steel sheets with various sizes by moving the stopper, and has the following problems: 1. all the limiting blocks need to be moved simultaneously during adjustment, and the moving distance of each limiting block needs to be measured, so that the operation is complicated and the efficiency is low; 2. the combination mode of the long hole and the matching hole ensures that the limiting block is fixed by pressing force, so that the stability is poor; 3. if the height of the limiting block is fixed and unchanged, the stacking thickness of the silicon steel sheets is limited by the height of the limiting block, otherwise, the limiting block cannot limit the upper silicon steel sheet, and if the limiting block is matched with different stacking thicknesses, a plurality of groups of limiting blocks with different heights need to be processed, so that the production cost is high, the replacement is complicated, and the production efficiency is influenced; 4. the limiting block is L-shaped in the patent, the adjusting distance of the limiting block is limited due to the combination mode of the elongated hole and the matching hole, and the size of the applicable silicon steel sheet is limited.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a silicon steel sheet press-fitting tool which can be suitable for silicon steel sheets of various specifications, and is convenient to operate and good in stability.
In order to achieve the purpose, the invention provides the following technical scheme:
the silicon steel sheet press-mounting tool comprises a lower pressing plate, wherein a limiting structure is arranged on the lower pressing plate and used for limiting a silicon steel sheet in the silicon steel sheet press-mounting process; the limiting structure comprises a limiting stop capable of being rotationally adjusted, the limiting stop comprises a plurality of limiting surfaces which are used for limiting silicon steel sheets with different sizes and specifications respectively, and the minimum distances between the limiting surfaces and the rotating axes of the limiting stop are different.
Furthermore, the limit structure also comprises a guide rod penetrating through the limit stop, and a guide hole in clearance fit or transition fit with the guide rod is formed in the limit stop; the rotation axis of the limit stop is the central line of the guide hole.
Furthermore, a plurality of lower positioning holes matched with the guide rod are formed in the lower pressing plate, and an adjusting path is formed among the plurality of lower positioning holes; when the limit stop moves along the adjusting path, the limit space between the limit surface and the silicon steel sheet can be adjusted.
Furthermore, part of the guide rods are sleeved with elastic supporting pieces which are in contact with the bottom ends of the limit stops, so that the limit stops comprise upper limit stops and lower limit stops.
Furthermore, the bottom end of the upper limit stop block is provided with a limit groove matched with the elastic support piece.
Furthermore, the limiting structure comprises a plurality of groups of limiting stops, and the number of the limiting stops in each group is at least three; a plurality of limit stop in the same group are arranged linearly, and the limit stop at the two ends is the upper limit stop.
Furthermore, the tool further comprises an upper pressure plate, wherein an upper positioning hole matched with the guide rod is formed in the upper pressure plate, and the upper positioning hole and the lower positioning hole are arranged in the same mode.
Furthermore, a height limiting structure used for limiting the press-fitting time distance between the lower pressure plate and the upper pressure plate is arranged between the lower pressure plate and the upper pressure plate.
Further, the height limiting structure is a height-adjustable limiting structure.
Furthermore, a locking structure for fixing the distance between the lower pressure plate and the upper pressure plate after press mounting is arranged between the lower pressure plate and the upper pressure plate.
In conclusion, the invention has the following beneficial effects:
1. in the press-fitting process, the silicon steel sheet is limited by the limit stop, so that the sliding offset of the silicon steel sheet can be effectively controlled, a large machining allowance does not need to be reserved, machining waste is reduced, and the machining cost is reduced;
2. the limit stop can be respectively adjusted in rotation and movement, so that the limit stop can be suitable for silicon steel sheets of various specifications, the adjustment operation is convenient, and the production efficiency can be improved;
3. the plurality of holes are adopted to form an adjusting path to realize the movement adjustment of the limit stop, so that the limit stop does not need to limit through pressing force, the stability of the limit stop can be improved, and the limit stop cannot move in the limiting process;
4. adopt upper strata limit stop to cooperate with lower floor limit stop, can all carry on spacingly to the silicon steel sheet on whole height, improve spacing effect.
Drawings
Fig. 1 is a schematic overall structure diagram of a silicon steel sheet press-fitting tool in the embodiment;
fig. 2 is a schematic structural view of a part of an assembly of a silicon steel sheet press-fitting tool in the embodiment;
fig. 3 is a schematic structural view of the bump stopper in the embodiment.
In the figure: 1. pressing the plate downwards; 11. a lower positioning hole; 2. an upper pressure plate; 21. an upper positioning hole; 31. a limit stop block; 311. a guide hole; 32. a guide bar; 33. an elastic support member; 4. a height limiting structure; 5. a silicon steel sheet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the present invention.
Example (b):
a silicon steel sheet press-fitting tool refers to fig. 1 and 2 and comprises a lower pressing plate 1, wherein a limiting structure is arranged on the lower pressing plate 1 and used for limiting a silicon steel sheet 5 in a silicon steel sheet 5 press-fitting process; the limiting structure comprises a limiting stop 31 capable of being adjusted in a rotating mode, the limiting stop 31 comprises a plurality of limiting surfaces which are used for limiting silicon steel sheets with different sizes and specifications respectively, and the minimum distances between the limiting surfaces and the rotating axis of the limiting stop 31 are different; minimum distance between each spacing face on limit stop 31 and the axis of rotation is all inequality in this embodiment to can be applicable to different dimensions's silicon steel sheet, rotate when needing to adjust limit stop 31 can, convenient operation, and then can improve production efficiency.
Referring to fig. 1 to 3, specifically, the limiting structure in this embodiment further includes a guide rod 32 penetrating through the limiting stopper 31, the limiting stopper 31 is provided with a guide hole 311 in clearance fit or transition fit with the guide rod 32, and a rotation axis of the limiting stopper 31 is a central line of the guide hole 311; the guide rod 32 is in transition fit or clearance fit with the guide hole 311, so that the limit stop 31 and the guide rod 32 form movable connection, thereby facilitating processing and installation and facilitating rotation adjustment of the limit stop 31; in other alternative embodiments, the guide rod 32 and the limit stop 31 may be fixedly connected or integrally formed, and are not limited herein; in this embodiment, one limit stopper 31 is sleeved on the guide rod 32, and in other alternative embodiments, a plurality of limit stoppers 31 may be sleeved on one guide rod 32 to adapt to silicon steel sheets with different heights, which is not limited herein.
Referring to fig. 1, in the present embodiment, a plurality of lower positioning holes 11 matched with a guide rod 32 are formed in a lower pressure plate 1, and an adjusting path is formed between the plurality of lower positioning holes 11; when the limit stop 31 moves along the adjusting path, the limit space between the limit surface and the silicon steel sheet 5 can be adjusted; on the basis that the limit stop 31 can be adjusted in a rotating mode, the limit stop 31 can be adjusted in a moving mode, and therefore the silicon steel sheet adjusting device can be suitable for silicon steel sheets with more sizes and specifications; in the embodiment, the limit stopper 31 is movably adjusted in a porous manner, so that the guide rod 32 is matched with the lower positioning hole 11 to limit the limit stopper 31 in the horizontal direction, and the stability of the limit stopper in a limiting state can be effectively ensured; of course, in other alternative embodiments, the guide rod 32 may be matched with the elongated hole to realize the movement adjustment, and the movement adjustment is not limited herein.
Referring to fig. 1, in the embodiment, the silicon steel sheets are stacked to form a cuboid as a whole, so that the silicon steel sheets need to be limited in two mutually perpendicular horizontal directions; specifically, in the present embodiment, the plurality of lower positioning holes 11 on the lower platen 1 are arranged in rows and columns, where a row is parallel to one horizontal direction that needs to be limited, and a column is parallel to the other horizontal direction that needs to be limited, that is, an adjusting path formed between the plurality of lower positioning holes 11 includes two limiting directions that are perpendicular to each other; in the case that the length of the silicon steel sheet is changed, or the width thereof is changed, or both the length and the width thereof are changed, the limit stoppers 31 in the present embodiment may be matched by rotation adjustment, movement adjustment, or rotation adjustment plus movement adjustment.
Referring to fig. 1, in this embodiment, an elastic supporting member 33 contacting with the bottom end of the limit stop 31 is sleeved on the partial guide rod 32, so that the limit stop 31 includes an upper limit stop and a lower limit stop; in the embodiment, the upper limit stop is matched with the lower limit stop, so that the silicon steel sheet can be limited in the whole height; further, in this embodiment, a limiting groove (not shown in the drawings) matched with the elastic supporting member 33 is formed at the bottom end of the upper limit stop, so that the stability of the elastic supporting member 33 can be improved.
Referring to fig. 1, the limiting structure includes a plurality of sets of limiting stoppers 31, and the number of the limiting stoppers 31 in each set is at least three; the limit stops 31 in the same group are arranged linearly, and the upper limit stops are positioned at the two ends; specifically, the limiting structure in this embodiment includes four sets of limiting stoppers 31 respectively corresponding to the four limiting surfaces of the silicon steel sheet, where the number of the limiting stoppers 31 in each set is three; in the three limit stops 31 in the same group, the middle is a lower limit stop, and the two ends are upper limit stops; the silicon steel sheets are pressed from top to bottom, so that the silicon steel sheets on the upper layer are stressed firstly, and if the silicon steel sheets on the upper layer are rotated and deviated, the silicon steel sheets on the upper layer may interfere with the limit stop blocks on the lower layer in the pressing process, so that the two ends of each group are arranged as the limit stop blocks on the upper layer in the embodiment, the silicon steel sheets can be effectively prevented from interfering with the limit stop blocks on the lower layer, and the pressing process is guaranteed to be carried out smoothly; in other alternative embodiments, the number and spacing of the limit stops 31 in the same group can be adjusted, and are not limited herein.
Referring to fig. 1, the tool in this embodiment further includes an upper press plate 2, an upper positioning hole 21 matched with the guide rod 32 is formed in the upper press plate 2, and the arrangement of the upper positioning hole 21 is the same as that of the lower positioning hole 11; in this embodiment, the guide rod 32 penetrates through the upper press plate 2, so that the guide rod 32 has a limiting effect on the movement of the upper press plate 2, and the stability of the upper press plate 2 is improved; meanwhile, the upper pressure plate 2 also has a limiting effect on the guide rod 32, so that the stability of the limit stop 31 can be improved; in this embodiment, the upper press plate 2 contacts with the top end of the upper limit stop and drives the upper limit stop to move downward in the press-fitting process, so that the upper limit stop is supported by the elastic support member 33, specifically, the elastic support member 33 is a spring in this embodiment; the upper limit stop moves downwards along with the upper pressing plate 2 in the process of press mounting of the silicon steel sheet, so that friction between the upper limit stop and the silicon steel sheet can be reduced, and smooth press mounting is ensured; in the embodiment, the area of the upper pressing plate 2 is larger than that of the silicon steel sheet, so that the stress uniformity can be improved; in other alternative embodiments, if the upper press plate 2 does not contact the upper limit stopper, the elastic support 33 may be replaced with a fixed support, which is not limited herein.
Referring to fig. 1, in the present embodiment, a height limiting structure 4 for limiting a press-fitting time interval between a lower platen 1 and an upper platen 2 is disposed, and the height limiting structure 4 is preferably a height-limited adjustable structure; specifically, the height limiting structure in the embodiment is a four-group bolt and nut assembly, the bolts simultaneously penetrate through the lower pressure plate 1 and the upper pressure plate 2, the movement of the upper pressure plate 2 is guided and limited, and the nuts are located between the lower pressure plate 1 and the upper pressure plate 2, so that the height limiting effect can be achieved, the limited height can be adjusted by rotating the nuts, and the operation is convenient; in other alternative embodiments, the height limiting structure 4 may also have other structural forms, and is not limited herein.
Referring to fig. 1, in the present embodiment, a locking structure for fixing a distance between a lower pressure plate 1 and an upper pressure plate 2 after press mounting is provided between the two; specifically, in the present embodiment, the locking structure is a bolt and nut assembly, and the guide rod 32 is used as a bolt, so that the structure can be simplified; after the press fitting is finished, the top ends of the guide rods 32 are screwed with locking nuts in contact with the top wall of the upper pressure plate 2, so that the space between the upper pressure plate 2 and the lower pressure plate 1 can be locked, the pressure maintaining is carried out, and a plurality of guide rods 32 surround the silicon steel sheet, so that a more stable and uniform locking effect is realized; in other alternative embodiments, a separate bolt and nut assembly may be used as the locking structure, and other structural forms of locking structures may also be used, which are not limited herein.
Referring to fig. 1 to 3, a transverse distance a and a longitudinal distance b of the lower positioning hole 11 are defined, and the minimum distances from the limiting surfaces of the limit stop 31 to the center line of the guide hole 311 are L1 and L2 \8230 \ 8230ln, respectively, so that the minimum distance differences from the limiting surfaces of the limit stop 31 to the center line of the guide hole 311 are δ 1 and δ 2 \8230 \ 8230, δ n-1, respectively; defining the minimum distance between the silicon steel sheet 5 and the limit stop 31 as k; after the silicon steel sheet is placed on the holding down plate 1, if just be less than k but unlimited being close to k with the distance of the minimum spacing face (being L minimum) of limit stop 31, then limit stop 31 need retreat a mounting hole (being lower locating hole 11) this moment, and the distance of the minimum spacing face and silicon steel sheet of limit stop 31 is max (a, b) + k this moment, then the quantity n of the spacing face of limit stop 31 is calculated according to the following formula:
wherein δ min is the minimum value of the minimum distance difference from each limit surface of the limit stopper 31 to the center line of the guide hole 311, that is, δ min = min (δ 1, δ 2,. Gtoreq., δ n-1).
Because the more the number n of the limiting surfaces of the limit stop 31, the smaller the width of each limiting surface is, and the value range of n is usually:
preferably, the number n of the stopper surfaces of the stopper 31 is calculated by the following formula:
in the embodiment, eight side surfaces of the limit stop 31 are limit surfaces, so that silicon steel sheets with any size and specification can be used in the tool in the conventional process; in other alternative embodiments, the number of the limiting surfaces of the limiting stopper 31 with the same specification may be multiple, or only a part of all the side surfaces of the limiting stopper 31 may be used as the limiting surface, which is not limited herein.
Claims (7)
1. A silicon steel sheet press-fitting tool comprises a lower pressing plate, wherein a limiting structure is arranged on the lower pressing plate and used for limiting a silicon steel sheet in a silicon steel sheet press-fitting process; the method is characterized in that:
the limiting structure comprises a limiting stop capable of being adjusted in a rotating mode, the limiting stop comprises a plurality of limiting surfaces which are used for limiting silicon steel sheets with different sizes and specifications respectively, and the minimum distances between the limiting surfaces and the rotating axis of the limiting stop are different;
the limiting structure also comprises a guide rod penetrating through the limiting stop block, and a guide hole which is in clearance fit or transition fit with the guide rod is formed in the limiting stop block; the rotation axis of the limit stop is the central line of the guide hole;
part of the guide rods are sleeved with elastic supporting pieces which are in contact with the bottom ends of the limit stops, so that the limit stops comprise upper limit stops and lower limit stops;
the limiting structure comprises a plurality of groups of limiting stops, and the number of the limiting stops in each group is at least three; a plurality of limit stop in the same group are arranged in a straight line, and are located at both ends the upper limit stop is located in the middle and comprises the lower limit stop.
2. A silicon steel sheet press fitting tool according to claim 1, characterized in that: a plurality of lower positioning holes matched with the guide rod are formed in the lower pressing plate, and an adjusting path is formed among the lower positioning holes; when the limit stop moves along the adjusting path, the limit space between the limit surface and the silicon steel sheet can be adjusted.
3. A silicon steel sheet press fitting tool as claimed in claim 1, wherein: and the bottom end of the upper limit stop block is provided with a limit groove matched with the elastic support piece.
4. A silicon steel sheet press fitting tool according to claim 2, characterized in that: the tool further comprises an upper pressing plate, wherein an upper positioning hole matched with the guide rod is formed in the upper pressing plate, and the upper positioning hole and the lower positioning hole are arranged in the same mode.
5. A silicon steel sheet press fitting tool according to claim 4, characterized in that: and a height limiting structure used for limiting the press-fitting time interval between the lower pressure plate and the upper pressure plate is arranged between the lower pressure plate and the upper pressure plate.
6. A silicon steel sheet press fitting tool according to claim 5, characterized in that: the height limiting structure is a height-adjustable limiting structure.
7. A silicon steel sheet press fitting tool as claimed in claim 4, wherein: and a locking structure for fixing the distance between the lower pressure plate and the upper pressure plate after press mounting is arranged between the lower pressure plate and the upper pressure plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110958410.7A CN113664759B (en) | 2021-08-20 | 2021-08-20 | Silicon steel sheet pressure equipment frock |
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| CN202110958410.7A CN113664759B (en) | 2021-08-20 | 2021-08-20 | Silicon steel sheet pressure equipment frock |
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| CN113664759A CN113664759A (en) | 2021-11-19 |
| CN113664759B true CN113664759B (en) | 2022-12-02 |
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| DE19943605C2 (en) * | 1999-09-11 | 2002-06-20 | Hohenstein Vorrichtungsbau | Adaptive workpiece clamping device |
| CN201117400Y (en) * | 2007-07-27 | 2008-09-17 | 中电电气集团有限公司 | Transformer iron core column end-face positioning apparatus |
| CN204321987U (en) * | 2014-12-17 | 2015-05-13 | 重庆小康工业集团股份有限公司 | Engine oil seal pressing machine base |
| CN206250917U (en) * | 2016-12-20 | 2017-06-13 | 济南磁能科技有限公司 | A kind of three support column determines the silicon steel sheet adhering device of plane |
| CN208811561U (en) * | 2018-08-01 | 2019-05-03 | 泰州海华机械制造有限公司 | A kind of automobile connecting bar fixed clamping device |
| CN210956435U (en) * | 2019-12-20 | 2020-07-07 | 佛山市碧耳海节能电气有限公司 | Cold rolled silicon steel sheet stacking mechanism of transformer |
| CN111810507B (en) * | 2020-06-29 | 2021-10-22 | 北京汽车集团越野车有限公司 | Dowel pin assembly, manufacturing method and manufacturing device |
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Application publication date: 20211119 Assignee: Suzhou Heyu Finance Leasing Co.,Ltd. Assignor: SUZHOU YINGCI NEW ENERGY TECHNOLOGY CO.,LTD. Contract record no.: X2023980043152 Denomination of invention: A silicon steel sheet press fixture Granted publication date: 20221202 License type: Exclusive License Record date: 20231010 |
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Denomination of invention: A silicon steel sheet press fixture Effective date of registration: 20231012 Granted publication date: 20221202 Pledgee: Suzhou Heyu Finance Leasing Co.,Ltd. Pledgor: SUZHOU YINGCI NEW ENERGY TECHNOLOGY CO.,LTD. Registration number: Y2023980060823 |
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