CN114360888B - Automatic lamination method of transformer core - Google Patents
Automatic lamination method of transformer core Download PDFInfo
- Publication number
- CN114360888B CN114360888B CN202210056033.2A CN202210056033A CN114360888B CN 114360888 B CN114360888 B CN 114360888B CN 202210056033 A CN202210056033 A CN 202210056033A CN 114360888 B CN114360888 B CN 114360888B
- Authority
- CN
- China
- Prior art keywords
- sheet
- punching
- punched
- feeding
- punching sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003475 lamination Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004080 punching Methods 0.000 claims abstract description 129
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 31
- 238000003825 pressing Methods 0.000 claims description 17
- 239000013072 incoming material Substances 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 229910000976 Electrical steel Inorganic materials 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 239000000725 suspension Substances 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Landscapes
- Manufacturing Cores, Coils, And Magnets (AREA)
Abstract
The invention provides an automatic lamination method of a transformer iron core, which is characterized in that iron cores in a shape like a Chinese character 'ri' or a Chinese character 'kou' are laminated by adopting a method of overlapping one by one and then splicing; simulating manual lamination, firstly adjusting the width direction of the punching sheet, and positioning by adopting a guide piece in the adjusting process; positioning the length direction; the method has the advantages that the requirement on the uniformity of the incoming material punched sheets is low, manual participation is not needed in the whole process, the efficiency is high, the labor cost is low, experience is not needed, the quality is easier to be ensured than that of manual lamination, and the labor intensity of operators is greatly reduced.
Description
Technical Field
The invention relates to the technical field of transformers, in particular to an automatic lamination method of a transformer core.
Background
The iron core is the main magnetic path part in the transformer and is generally formed by stacking hot-rolled or cold-rolled silicon steel sheets with high silicon content and surfaces coated with insulating paint. The iron core and the coil wound on the iron core form a complete electromagnetic induction system. The transformer core is typically formed from cold rolled sheet silicon steel (stamped sheet), which is cut into long sheets according to the desired core size, and then overlapped into a "daily" shape, a "mouth" shape, or an "E" shape, etc. According to the electrical requirements, the specifications of the punching sheets of the same iron core are different, but the lengths are not consistent, the widths are consistent, and the lengths of two adjacent punching sheets are equal.
The whole iron core is formed by stacking six thousand silicon steel sheets according to a certain sequence rule, stacking and aligning of the silicon steel sheets are kept to be accurate by experience and naked eye observation in the stacking process by manpower, a stacking worker has to keep high attention, the quality of the iron core stacked by different workers is different, a product has a certain proportion of reject ratio, the efficiency is low, the time consumption is long, and the working strength is high.
The patent name of the high-efficiency automatic lamination device and method for the silicon steel sheet iron core of the power transformer is CN 108666126B, and the high-efficiency automatic lamination device comprises a mechanical arm, a measuring table, a lamination table and a control system, wherein one end of the mechanical arm is rotatably arranged on the ground, and the other end of the mechanical arm is rotatably connected with the mechanical arm. The mechanical arm can rotate to the measuring table top and can also rotate to the stacking table top, wherein the mechanical arm and the mechanical arm are connected with a control system through signals. The device has the advantages of relatively simple structure and small occupied area, and the manufactured transformer finished product has high precision and quality, reduces labor cost and labor intensity and improves production efficiency. The high-efficiency automatic lamination method for the silicon steel sheet iron core of the power transformer is also provided, and the silicon steel sheet with adhesion can be taken from a sheet pile or a table surface of a measuring table in time
The transformer core is separated into single pieces, so that the transformer core meeting the high-precision and high-quality requirements can be stacked. According to the technical scheme, iron core sheets are spliced into a Chinese character 'ri', and then lamination sheets of the Chinese character 'ri' are stacked upwards layer by layer. The invention is firstly spliced into a Chinese character 'ri' shape, and then a layer is overlapped upwards, because the Chinese character 'ri' shape is firstly spliced, the requirement on the uniformity of the incoming materials of the iron core sheet is very high, because the iron core sheet is processed by a punch press or a cutting bed, and the iron core sheet is very thin, the width and the length directions of the iron core sheet (punching sheet) which is taken down from the punch press or the cutting bed are not uniform, and the technical scheme is difficult to realize. Although a vision system can be additionally arranged, the incoming materials are regulated through automatic control, on one hand, the efficiency is reduced by additionally arranging the vision system, on the other hand, the thickness of the iron chip is 0.27mm and is very thin as the iron chip is very thin and is usually only a few tenths of a millimeter, and a large transformer of 110KVA is taken as an example; the iron core sheet of the transformer is variable in size according to the electrical requirement, when the iron core sheet is processed on a punching machine cutting bed, the iron core sheet is placed from bottom to top according to the requirement, the iron core sheet is too thin and different in size, a vision system is difficult to identify, and once the vision system has an identification error, the stacking of the subsequent iron core sheets is affected.
Disclosure of Invention
Aiming at the defects, the invention provides an automatic lamination method of a transformer iron core with high efficiency and low requirement on the uniformity of a punching sheet, wherein the method is to laminate the iron cores with the shapes of Chinese character 'ri' shape or Chinese character 'kou' shape by adopting a method of overlapping one by one and splicing the iron cores; simulating manual lamination, firstly adjusting the width direction of the punching sheet, and positioning by adopting a guide piece in the adjusting process; positioning the length direction; the method has the advantages that the requirement on the uniformity of the incoming material punched sheets is low, manual participation is not needed in the whole process, the efficiency is high, the labor cost is low, experience is not needed, the quality is easier to be ensured than that of manual lamination, and the labor intensity of operators is greatly reduced.
The above object of the present invention is achieved by the following technical solutions:
An automatic lamination method of a transformer core, comprising the following steps:
the first step: the punching tray, the feeding device and the fine positioning device are sequentially arranged, and guide pieces are arranged on the feeding device and the fine positioning device, so that the punching sheet does not displace in the width direction when passing through the feeding device and the fine positioning device;
and a second step of: feeding, namely placing the punched sheet on a punched sheet tray;
and a third step of: the suction sheet device sucks the punching sheet;
Fourth step: coarse positioning, namely straightening the sucked punching sheet, and adjusting the width direction of the punching sheet to enable the length direction of the punching sheet to be parallel to the feeding direction;
Fifth step: feeding the punched sheet into a feeding device by a sheet suction device, driving the punched sheet to move forward by the feeding device, and enabling the punched sheet to enter a fine positioning device;
Sixth step: the fine positioning device is used for limiting the length direction of the punching sheet, so that small holes on the punching sheet are aligned with the positioning pins in the grooves;
Seventh step: the lamination, the accurate positioning device is opened, the punching sheet falls down, and the positioning hole on the punching sheet penetrates into the positioning pin of the groove; the punched sheets with different specifications sequentially fall into the grooves;
Eighth step: grabbing, and magnetically sucking the lamination by a mechanical arm, and placing the lamination in a lamination placing area.
The method of the invention is to stack the punched sheets layer by layer, then splice the punched sheets into a shape like a Chinese character ' ri ', a Chinese character ' kou ', an E ' and the like, namely, stack the punched sheets layer by layer and splice the punched sheets layer by layer. The method is characterized in that the punched sheets are sucked one by one and fed into a feeding device, and the punched sheets are sucked by the suction sheet device preferably in a sucking disc mode; the punching tray, the feeding device and the fine positioning device are sequentially arranged like a printer, so that the punching sheets are conveyed one by one, the efficiency is high, and the positioning is accurate. When lamination is carried out, the punching sheets with different specifications are sequentially overlapped upwards, preferably five punching sheets are in a group, one group of punching sheets is generally overlapped from large to small or from small to large, and each time the lamination is completed, the five punching sheets are sucked by a mechanical arm and placed in a lamination placing area. The method includes that a sheet sucking device sucks a sheet of sheet, the width direction is firstly adjusted, and a guide piece is arranged, so that the sheet does not displace in the width direction in the moving process. After the punching sheet reaches the fine positioning device, limiting the length direction; and positioning pins are arranged in the grooves, so that positioning holes on the punching sheet are aligned with the positioning pins. After alignment, the fine positioning device is opened and the punch is dropped into the recess.
Further, in the third step, the punching tray is lifted, and the punching device sucks one punching sheet.
After the punching sheet tray ascends, the suction sheet device sucks the suction sheet again, so that the movement path of the sucked punching sheet is reduced, and the suction stability is ensured.
Further, in the third step, the sheet sucking device sucks one end of the sheet, one end of the sheet is sent to the feeding device, and the feeding device drives the sheet to move forwards.
Further, in the fourth step, the straightening of the sucked punched piece means: the two sides of the punching sheet are provided with guide parts, and the guide parts draw the punching sheet towards the middle, so that the middle line of the length direction of the punching sheet is overlapped with the straight line.
Further, in the fifth and sixth steps, the punching sheet is pressed during the sheet feeding and fine positioning.
Further, in the fifth step, the distance between the feeding device and the fine positioning device is smaller than the length of the punching sheet, so that the punching sheet is conveyed into the fine positioning device through the feeding device.
Further, in the sixth step, the adjusting of the length direction of the punching sheet by the fine positioning device means: one end of the fine positioning device is provided with a limiting block, five punching sheets are stacked from long to short, each time one punching sheet is stacked, and the forward moving distance of the limiting block is the difference between the lengths of the two punching sheets.
Further, in the seventh step, the positioning pin is composed of a conical part and a cylindrical part, and the cone apex angle of the conical part is smaller than 20 degrees, so that the punching sheet smoothly falls down. Even after coarse positioning and fine positioning, the stamping is likely to have deviation, if the positioning pin is in a truncated cone shape, the positioning hole cannot be sleeved in the positioning pin due to the deviation, so that the upward end part of the positioning pin needs to be reduced as much as possible, and the stamping with the deviation falls into the positioning pin; the upper part of the locating pin is conical aiming at the actual working condition with deviation. On the other hand, since the punched sheet is thin and light, if the inclination of the tapered portion of the positioning pin is too large, even if the positioning hole of the punched sheet is smoothly inserted into the positioning pin, the punched sheet is caught and cannot fall to the bottommost surface because the inclination of the positioning pin is too large, and therefore, the taper angle of the tapered portion of the positioning pin is as small as possible while ensuring the strength of the positioning pin, and the taper angle of the tapered portion of the positioning pin is smaller than 20 °.
Further, in the second step, before feeding, the punched sheets are manually arranged, so that the width directions of the punched sheets are aligned as much as possible.
The width and length directions of the iron core sheets (punched sheets) which are taken down from the punching machine or the cutting machine are not regular, and if the incoming material uniformity is too poor, the punched sheets which are placed on the punched sheet tray can be manually arranged in advance.
The invention has the following beneficial effects:
the automatic lamination method of the transformer iron core, disclosed by the invention, adopts a method of overlapping one by one and then splicing the two layers, is high in efficiency and low in requirement on the uniformity of incoming materials. Specifically, after a piece of punched sheet is sucked by the sheet suction device, the width direction of the punched sheet is adjusted firstly due to the irregular punched sheet which is discharged from a punching machine cutting bed; the adjusted punched sheet is sent to a feeding device, and then the feeding device sends the punched sheet to a fine positioning device. In order to realize stacking, a groove is formed in the fine positioning device, a positioning pin matched with a punching sheet positioning hole is fixed in the groove, and the fine positioning device limits the length direction of the punching sheet, so that a small hole on the punching sheet is aligned with the positioning pin in the groove. Realizes the automatic adjustment and positioning of the width and length directions of the punching sheet. By analogy, the later punched sheets enter the grooves according to the step, so that orderly and efficient lamination is completed; the punching sheets entering the grooves are sucked by the mechanical arm and placed in the lamination placing area, the mechanical arm adopts electromagnetic ferromagnetic suction, and the number of the punching sheets sucked at one time can be set through the control system. Compared with the prior art, the device has high efficiency, simple structure and low requirement on uniformity of incoming materials, and can be suitable for punching sheets with various specifications.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
Fig. 1 is a schematic diagram of an automatic lamination system for transformer cores (robot is sucking up laminations).
Fig. 2 is a schematic structural view of a sheet tray, a sheet suction device, and a feeding device (sheet suction).
Fig. 3 is a schematic structural view of the sheet tray, the sheet suction device and the feeding device (the sheet enters the feeding device).
Fig. 4 is a schematic diagram of the structure of the fine positioning device.
Fig. 5 is a diagram of the positional relationship between the trapezoidal punching sheet and the limiting block.
Fig. 6 is a diagram of the relationship between the hexagonal punching and the limiting block.
Fig. 7 is a schematic view of the dowel structure.
The device comprises a punching sheet-1, a trapezoid punching sheet-11, a hexagonal punching sheet-12, a guide piece-2, a driving piece-3, a positioning hole-4, a punching sheet tray-100, a suction sheet device-200, a suction cup-201, a guide piece-202, a driving piece-203, a bracket-204, a feeding device-300, a pinch roller-301, an upper roller-302, a lower roller-303, a driving piece-304, a shaft-305, a suspension-306, a bracket-307, a guide rod-308, a guide piece-309, a fine positioning device-400, a groove-401, a positioning pin-402, a positioning block-403, a driving piece-404, a limiting block-405, a mounting plate-4051, a limiting plate-4052, a driving piece-406, a driving wheel-407, a pinch roller-408, a lamination placing area-500, a manipulator-600 and a workbench-700.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
Example 1
An automatic lamination system for transformer iron cores, as shown in fig. 1, comprises a punching tray 100, a sheet sucking device 200, a feeding device 300, a fine positioning device 400, a lamination placing area 500 and a manipulator 600; the punching tray 100, the feeding device 300 and the fine positioning device 400 are sequentially arranged, and the manipulator 600 is placed between the fine positioning device 400 and the lamination placing area 500; the suction sheet device 200 can move back and forth towards the feeding device 300, and the distance between the feeding device 300 and the fine positioning device 400 is smaller than the length of the punching sheet 1; the punching sheet 1 is sucked by the sheet sucking device 200 and conveyed by the feeding device 300 to the fine positioning device 400; the fine positioning device 400 performs lamination on the punching sheet 1, and the mechanical arm 600 sucks and places the lamination in the lamination placing area 500, so that automatic lamination of the transformer core is realized.
As shown in fig. 1, the punching tray 100, the sheet suction device 200, the feeding device 300, and the fine positioning device 400 are all mounted on a table 700.
The punched sheet 1 is placed in the sheet tray 100, and as shown in fig. 2, the placement direction of the punched sheet 1 is a direction in which the length is toward the feed. A first driving member is connected to the lower part of the sheet tray 100, and drives the sheet tray 100 to move up and down, and after the sheet tray 100 moves up, the sheet sucking device 200 sucks a sheet of sheet 1 from the sheet tray 100. As shown in fig. 2, the sheet tray 100 and the first driving member are disposed at the lower portion of the table, and the sheet suction device 200 is disposed above the table 700.
The suction plate device 200 is provided with a suction cup 201 and a coarse positioning device, wherein the coarse positioning device comprises two first guide members 202 and two second driving members 203, and the first guide members 202 are respectively arranged on two sides of the suction cup 201; when the suction cup 201 sucks the punching sheet 1, the driving parts two 203 respectively drive the two first guide parts 202 to be close to the middle at the same time, so that the punching sheet 1 is aligned, and the width direction of the punching sheet 1 is adjusted.
The suction sheet device 200 further includes a first bracket 204, as shown in fig. 3, where the first bracket 204 is mounted on the sheet tray 100, and the first bracket 204 can move back and forth along the feeding direction, as shown by the arrow direction in fig. 3. The sheet suction device 200 sucks the punched sheet 1 into the feeding device 300.
As shown in fig. 2, the first guide member 202 is a roller, a gap is formed in the middle of the roller, after the sheet suction device 200 sucks the sheet 1, the rollers on two sides draw together toward the middle, the sheet 1 is located in the gap of the roller, and the roller adjusts the width direction of the sheet 1 on one hand, and on the other hand, after one end of the sheet 1 is sent into the feeding device 300, the roller also plays a guiding role on the forward movement of the sheet 1.
At least one pair of second guide members 2 are respectively arranged on two sides of the sheet tray 100, the second guide members 2 are driven by third driving members 3, when the sheet 1 is sucked up, the second guide members 2 are higher than the sheet tray 100 so that the sucking disc 201 sucks up the sheet 1, and the third driving members 3 drive the second guide members 2 to approach the sheet 1 to enable the sheet 1 to be aligned. If the uniformity of the punched sheet is too poor, the punched sheet is not aligned in the width direction by the first guide member 202 alone, and the punched sheet is at risk of falling, so that the second guide member 2 is further arranged, and after the punched sheet 1 is sucked up, the punched sheet 1 is aligned by adjusting the width direction of the punched sheet 1 together with the first guide member 202. As shown in fig. 2, the driving member three 3 is a cylinder, the guiding member two 2 is a barrier strip arranged at the output end of the cylinder, and the barrier strip acts on the punching sheet 1. In fig. 2 of the embodiment, only a pair of the second guide member 2 and the third drive member 3 are provided, and according to the uniformity of the incoming material, more pairs of the second guide member 2 and the third drive member 3 may be provided, and the less the incoming material is, the more the second guide member 2 and the third drive member 3 are provided.
The feeding device 300 comprises a roller device and a first pressing roller 301, wherein the roller device comprises an upper roller 302 and a lower roller 303, the punching sheet 1 is positioned between the upper roller 302 and the lower roller 303, and the upper roller 302 and the lower roller 303 are driven by a driving piece four to enable the punching sheet 1 to move forwards into the fine positioning device 400; the first pressing wheel 301 is located between the roller device and the film sucking device 200, the first pressing wheel 301 is driven by the fifth driving piece 304, and the fifth driving piece 304 drives the first pressing wheel 301 to move up and down.
The punching sheet 1 is longer, and the pressing wheel 301 is arranged to press the punching sheet 1, so that the conveying of the punching sheet 1 after entering is more reliable, and the bending deformation of the punching sheet 1 in the conveying process is prevented. The driving member five 304 may be a cylinder or a spring, and the friction force is more uniform during conveying, and the driving member five 304 in this embodiment is a cylinder. As shown in fig. 3, the first pressing wheel 301 is respectively disposed at two ends of a shaft 305, and when the punching sheet 1 passes through, the first pressing wheel 301 moves down, and the first pressing wheel 301 is driven to rotate. As shown in fig. 3, the shaft 305 is mounted on the suspension 306, the suspension 306 is connected with the output end of the air cylinder, the second bracket 307 is mounted on two sides of the punching sheet 1, the fifth driving member 304 is mounted on the top end of the second bracket 307, the guide rod 308 is vertically mounted on the suspension 306, the guide rod 308 passes through the second bracket 307, and the air cylinder drives the first pressing wheel 301 to move up and down along the guide rod 308.
Two guide members III 309 are also arranged between the roller device and the first pressing wheel 301; the punched sheet 1 passes between two guide members three 309, and the guide members three 309 play a guiding role. As shown in fig. 3, the third guide 309 is also a roller similar to the first guide 202, the sheet 1 passes through the first roller 301 and enters the roller device, and the third guide 309 prevents the sheet 1 from being laterally displaced, and plays a guiding role.
As shown in fig. 4, the fine positioning device 400 comprises a positioning tool, a material blocking device and a groove 401, wherein the groove 401 is positioned below the positioning tool, and a positioning pin 402 matched with a positioning hole 4 of the punching sheet 1 is fixed in the groove 401; the positioning tool comprises two positioning blocks 403 which are oppositely arranged, a conveying mechanism and a driving piece six 404, wherein the two positioning blocks 403 are respectively connected with the driving piece six 404, and the driving piece six 404 drives the two positioning blocks 403 to be relatively opened or closed; the two positioning blocks 403 are respectively provided with a conveying mechanism, and the conveying mechanism drives the punching sheet 1 to move forwards; the stop device comprises a limiting block 405 and a driving piece seven 406, wherein the driving piece seven 406 drives the limiting block 405 to move forwards and backwards, and limits the punching sheet 1 with different specifications, so that small holes on the punching sheet 1 are aligned with the positioning pins 402 in the grooves 401; after the driving piece six 404 drives the two-flap positioning block 403 to open, the punching sheet 1 falls into the groove 401.
The conveying mechanism comprises a driving wheel 407, a pressing wheel II 408 and a driving piece eight, wherein the driving wheel 407 is uniformly distributed along the movement direction of the punching sheet 1, and the driving piece eight drives the driving wheel 407 to rotate; the sheet 1 is located between the drive wheel 407 and the pinch roller two 408. As shown in fig. 4, the driving wheel 407 and the pressing wheel 408 are uniformly distributed on the positioning block 403, and the driving wheel 407 and the pressing wheel 408 are arranged along the feeding direction of the punching sheet.
The limiting block 405 comprises a mounting plate 4051 and a limiting plate 4052, the mounting plate 4051 is connected with a driving piece eight 409, and the driving piece eight 409 drives the mounting plate 4051 to linearly move to be close to or far away from the punching sheet 1; the limiting plate 4052 is contacted with the punching sheet 1; the limiting plate 4052 comprises a cross bar and vertical bars perpendicular to the cross bar, the cross bar and the vertical bars are parallel to the mounting plate 4051, the number of the vertical bars is at least two, the thickness of the vertical bars is larger than that of the punching sheet 1, in the embodiment, the number of the vertical bars is three, the limiting plate is in an inverse 3 shape, the vertical bars are vertically provided with rod pieces, and the height of the rod pieces is larger than that of the punching sheet 1 (the thickness of the vertical bars is larger than that of the punching sheet because the rod pieces are arranged); the limiting plate 4052 is detachably connected with the mounting plate 4051; when the punching sheet 1 is trapezoidal, the limiting plate 4052 is adjusted to enable the cross rod to be parallel to the inclined surface of the end part of the trapezoidal punching sheet 11, as shown in fig. 5; when the punching sheet 1 is hexagonal, the limiting plate 4052 is adjusted so that the end of the hexagonal punching sheet 12 is located between the two vertical bars, as shown in fig. 6. As shown in fig. 2, the punching sheet 1 in the present embodiment is trapezoidal, and the cross bar is parallel to the end inclined surface of the trapezoidal punching sheet 11.
As shown in fig. 7, the positioning pin 402 is composed of a conical portion and a cylindrical portion, and the cone apex angle α of the conical portion is smaller than 20 ° so that the punch 1 smoothly falls down.
As shown in fig. 4, the sixth driving member 404 is an air cylinder, the air cylinder is mounted on the workbench 700, and the output end of the air cylinder is connected with the positioning block 403; the workbench 700 is vertically provided with a limit, and the positioning block 403 is provided with a guide groove matched with the limit rod.
As shown in fig. 1, the lamination placement area 500 is provided with positioning pins 402 which are the same as those in the grooves 401, and the manipulator 600 magnetically sucks five punching sheets 1 to be placed in the lamination placement area 500, and positioning holes 4 on the punching sheets 1 penetrate through the positioning pins 402. The positioning pin 402 is needle-shaped, so that the punching sheet 1 can be conveniently and smoothly penetrated. The robot 600 is fitted with electromagnetic ferromagnetic suction laminations.
The embodiment realizes automatic lamination, has higher lamination automation degree, is controlled by a control system, has high production efficiency, is simple and convenient to operate, is easy to maintain, ensures the quality more easily than manual lamination, and greatly lightens the labor intensity of operators. The automatic switching device can be compatible with punched sheets of various types, and the punched sheets of different types can be automatically switched by only setting parameters. The requirement on the uniformity of the incoming material punched sheet is low, and no manual participation is needed in the whole process.
Example 2
An automatic lamination method for a transformer core, which uses the automatic lamination system for a transformer core according to embodiment 1 to perform lamination, in this embodiment, five sheets are stacked one by one, after stacking the five sheets, a mechanical arm 600 sucks a stack of sheets, and places the stack of sheets in a lamination placement area 500, taking stacking of five sheets from large to small as an example, and includes the following steps:
The first step: the sheet punching tray 100, the feeding device 300 and the fine positioning device 400 are sequentially arranged, and guide pieces are arranged on the feeding device 300 and the fine positioning device 400, so that the sheet punching 1 does not displace in the width direction when passing through the feeding device 300 and the fine positioning device 400;
and a second step of: feeding, namely placing the punching sheet 1 on a punching sheet tray 100;
and a third step of: the suction sheet, the first driving piece drives the sheet tray 100 to rise, and the suction sheet device 200 sucks one end of a sheet of sheet 1, as shown in fig. 2;
Fourth step: coarse positioning, namely straightening the sucked punching sheet 1, and adjusting the width direction of the punching sheet 1 by the first guide piece 202 and the second guide piece 2 to enable the length direction of the punching sheet 1 to be parallel to the feeding direction, wherein the direction shown by an arrow in fig. 3 is the feeding direction; the first guide 202 and the second guide 2 are not opened in the two-sided direction until the sheet 1 leaves.
Fifth step: sheet feeding, as shown in fig. 3, the sheet sucking device 200 feeds the sheet 1 into the feeding device 300, the sheet 1 passes through the guide member III 309 to enter the roller device, and the driving member V304 drives the pressing wheel I301 to move downwards to press the sheet 1; the feeding device 300 drives the punching sheet 1 to move forwards, and the punching sheet 1 enters the fine positioning device 400;
Sixth step: the fine positioning device 400 is provided with a groove 401 below, as shown in fig. 4, a positioning pin 402 is fixed in the groove 401, a driving piece seven 406 drives a limiting block 405 to advance, and limits the length direction of the punching sheet 1, so that a small hole on the punching sheet 1 is aligned with the positioning pin 402 in the groove 401; when the next sheet 1 enters the fine positioning device 400, the limiting block 405 moves forward again, and the moving distance is the difference between the lengths of two adjacent sheets 1.
Seventh step: the lamination, the fine positioning device 400 is opened, the punching sheet 1 falls down, and the positioning hole 4 on the punching sheet 1 penetrates into the positioning pin 402 of the groove 401; the punched sheets 1 with different specifications sequentially fall into the grooves 401;
Eighth step: the manipulator 600 magnetically picks up the stack of five punched sheets 1 and places the stack in the stack placement area 500.
Through repeated experiments, the efficiency of this embodiment is as follows: the time for the suction sheet and the feeding sheet 2S to precisely position 1S, namely 15S/5pcs, namely 5 sheets of punching sheet 1 of the automatic lamination system of the transformer core of the embodiment is 15S (and the suction sheet and the precise positioning can be simultaneously carried out, and the time for continuous lamination is actually less than 15S). With 15 seconds per stack of laminations (5 laminations 1), a 0.27mm thick lamination can be stacked 700mm high for 12.2 hours.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. The automatic lamination method of the transformer iron core is characterized by adopting a method of overlapping one by one and splicing after the overlapping, and comprises the following steps:
The first step: the punching tray, the feeding device and the fine positioning device are sequentially arranged, and guide pieces are arranged on the feeding device and the fine positioning device, so that the punching sheet does not displace in the width direction when passing through the feeding device and the fine positioning device; the feeding device comprises a roller device and a first pressing roller, the roller device comprises an upper roller and a lower roller, the punching sheet is positioned between the upper roller and the lower roller, and the upper roller and the lower roller are driven by a driving piece IV to enable the punching sheet to move forwards into the fine positioning device; the first pressing wheel is positioned between the roller device and the sheet suction device and is driven by the driving piece five, and the driving piece five drives the first pressing wheel to move up and down;
and a second step of: feeding, namely placing the punched sheet on a punched sheet tray;
and a third step of: the suction sheet device sucks the punching sheet; the suction sheet device is provided with a suction disc and a coarse positioning device, and is also provided with a first bracket which is arranged on the punching sheet tray and can move back and forth along the feeding direction;
Fourth step: coarse positioning, namely straightening the sucked punching sheet, and adjusting the width direction of the punching sheet to enable the length direction of the punching sheet to be parallel to the feeding direction;
Fifth step: feeding the punched sheet into a feeding device by a sheet suction device, driving the punched sheet to move forward by the feeding device, and enabling the punched sheet to enter a fine positioning device;
Sixth step: the fine positioning device is used for limiting the length direction of the punching sheet, so that small holes on the punching sheet are aligned with the positioning pins in the grooves;
Seventh step: the lamination, the accurate positioning device is opened, the punching sheet falls down, and the positioning hole on the punching sheet penetrates into the positioning pin of the groove; the punched sheets with different specifications sequentially fall into the grooves;
Eighth step: grabbing, wherein a mechanical arm magnetically absorbs the lamination, and placing the lamination in a lamination placing area;
fourth, the straightening of the sucked punched piece means: the two sides of the punching sheet are provided with guide parts, and the guide parts draw the punching sheet towards the middle so that the middle line of the length direction of the punching sheet is overlapped with the straight line;
Sixth, the adjusting the length direction of the punching sheet by the fine positioning device means: one end of the fine positioning device is provided with a limiting block, five punching sheets are stacked from long to short, each time one punching sheet is stacked, and the forward moving distance of the limiting block is the difference between the lengths of the two punching sheets.
2. The automatic lamination method of transformer cores according to claim 1, wherein in the third step, the sheet tray is lifted and the sheet sucking device sucks a sheet of sheet.
3. The method of automatic lamination of transformer cores according to claim 1, wherein the sheet suction means sucks the punched sheet by air pressure.
4. The automatic lamination method of transformer cores according to claim 1, wherein in the third step, the sheet sucking device sucks one end of the sheet, and feeds the one end of the sheet into the feeding device, and the feeding device drives the sheet to move forward.
5. The automatic lamination method of transformer cores according to claim 1, wherein the fifth and sixth steps apply pressure to the punched sheet during the feeding and fine positioning.
6. The automatic lamination method of transformer cores according to claim 1, wherein in the fifth step, the distance between the feeding device and the fine positioning device is smaller than the length of the punched sheet so that the punched sheet is transferred into the fine positioning device through the feeding device.
7. The automatic lamination method of transformer cores according to claim 1, wherein the positioning pin is composed of a conical portion and a cylindrical portion, and the cone apex angle of the conical portion is less than 20 ° so that the punched sheet smoothly falls.
8. The automatic lamination method of transformer cores according to claim 1, wherein the second step, before loading, is to manually sort the punched pieces so that the width directions of the punched pieces are aligned as much as possible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210056033.2A CN114360888B (en) | 2022-01-18 | 2022-01-18 | Automatic lamination method of transformer core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210056033.2A CN114360888B (en) | 2022-01-18 | 2022-01-18 | Automatic lamination method of transformer core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114360888A CN114360888A (en) | 2022-04-15 |
| CN114360888B true CN114360888B (en) | 2024-04-30 |
Family
ID=81091410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210056033.2A Active CN114360888B (en) | 2022-01-18 | 2022-01-18 | Automatic lamination method of transformer core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114360888B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1522425A (en) * | 1976-06-26 | 1978-08-23 | Palacin E | Method of making laminations for use in the manufacture of transformer cores |
| JP2003068552A (en) * | 2001-07-05 | 2003-03-07 | Abb T & D Technol Ltd | Method for manufacturing assembly of electric core steel lamination |
| CN101364478A (en) * | 2008-06-16 | 2009-02-11 | 易军 | Manufacturing method for combined high-speed electro-magnet iron core |
| CN101692406A (en) * | 2009-09-25 | 2010-04-07 | 中国北车集团大连机车车辆有限公司 | Method for laminating main transformer core of locomotive |
| CN105702445A (en) * | 2016-02-24 | 2016-06-22 | 长沙长泰机器人有限公司 | Automatic laminated sheet assembly method and system |
| CN207250315U (en) * | 2017-09-04 | 2018-04-17 | 吕志强 | E font core lamination stack systems |
| CN108538565A (en) * | 2018-04-18 | 2018-09-14 | 明珠电气股份有限公司 | Transformer core flexible intelligent lamination production system platform |
| CN108666126A (en) * | 2018-05-07 | 2018-10-16 | 北京才纳科技有限公司 | The efficient automatic laminating device and method of power transformer silicon sheet core |
| CN108831705A (en) * | 2018-06-25 | 2018-11-16 | 无锡巨龙硅钢股份有限公司 | The laminating method of transformer core and the transformer core prepared by the laminating method |
| CN212303367U (en) * | 2020-07-21 | 2021-01-05 | 四川洺杰电子产品有限公司 | Automatic laminating device of silicon steel sheet for transformer processing |
| KR102339261B1 (en) * | 2020-08-06 | 2021-12-15 | 한국산업기술대학교산학협력단 | Robot system for assembling of transformer core and method of controlling of them |
-
2022
- 2022-01-18 CN CN202210056033.2A patent/CN114360888B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1522425A (en) * | 1976-06-26 | 1978-08-23 | Palacin E | Method of making laminations for use in the manufacture of transformer cores |
| JP2003068552A (en) * | 2001-07-05 | 2003-03-07 | Abb T & D Technol Ltd | Method for manufacturing assembly of electric core steel lamination |
| CN101364478A (en) * | 2008-06-16 | 2009-02-11 | 易军 | Manufacturing method for combined high-speed electro-magnet iron core |
| CN101692406A (en) * | 2009-09-25 | 2010-04-07 | 中国北车集团大连机车车辆有限公司 | Method for laminating main transformer core of locomotive |
| CN105702445A (en) * | 2016-02-24 | 2016-06-22 | 长沙长泰机器人有限公司 | Automatic laminated sheet assembly method and system |
| CN207250315U (en) * | 2017-09-04 | 2018-04-17 | 吕志强 | E font core lamination stack systems |
| CN108538565A (en) * | 2018-04-18 | 2018-09-14 | 明珠电气股份有限公司 | Transformer core flexible intelligent lamination production system platform |
| CN108666126A (en) * | 2018-05-07 | 2018-10-16 | 北京才纳科技有限公司 | The efficient automatic laminating device and method of power transformer silicon sheet core |
| CN108831705A (en) * | 2018-06-25 | 2018-11-16 | 无锡巨龙硅钢股份有限公司 | The laminating method of transformer core and the transformer core prepared by the laminating method |
| CN212303367U (en) * | 2020-07-21 | 2021-01-05 | 四川洺杰电子产品有限公司 | Automatic laminating device of silicon steel sheet for transformer processing |
| KR102339261B1 (en) * | 2020-08-06 | 2021-12-15 | 한국산업기술대학교산학협력단 | Robot system for assembling of transformer core and method of controlling of them |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114360888A (en) | 2022-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5518639B2 (en) | Transformer iron core manufacturing apparatus and manufacturing method | |
| JP2013252590A (en) | Device and method for manufacturing laminated material for laminated core production | |
| EP0178376A2 (en) | Feeding apparatus for feeding and advancing of plates in a tool machine | |
| CN110722359A (en) | Transformer silicon steel sheet shearing and stacking machine | |
| JP6605352B2 (en) | Laminate production equipment for laminated core formation | |
| EP2899729A1 (en) | Transformer core stacking device and method | |
| US6688201B1 (en) | Thin sheet punching device | |
| KR102339261B1 (en) | Robot system for assembling of transformer core and method of controlling of them | |
| US5487808A (en) | Apparatus for laminating plates | |
| CN114360888B (en) | Automatic lamination method of transformer core | |
| WO2019030352A1 (en) | Device and method for producing transformer cores | |
| CN110957122B (en) | Lamination device and method | |
| EP2508276B1 (en) | Sheet metal removal station | |
| CN216749582U (en) | Automatic lamination system of transformer core | |
| CN213042789U (en) | Automatic correction device for iron core lamination production | |
| US5353669A (en) | Shear for sheet material and method for forming a transformer core from the sheet material | |
| CN209502794U (en) | A kind of feeder equipment | |
| DE2163700C3 (en) | Method and apparatus for the automatic layering of individual sheets for the lower yoke and the legs of multi-leg cores for transformers, inductors, and the like | |
| JP3490524B2 (en) | Coil manufacturing apparatus and manufacturing method | |
| US20230063429A1 (en) | Method for the production of sheet cores, gripping system for stacks of sheets and plant for the production of sheet cores | |
| CN211167742U (en) | Plate glass's subsides mark device | |
| KR200371667Y1 (en) | automatic loading machine for core of transformer | |
| JP4439056B2 (en) | Iron core automatic stacking device | |
| JP2895054B1 (en) | Pin punching machine | |
| LU500393B1 (en) | Machine capable of automatically stacking silicon steel cores |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |