Punching device and method for silicon steel sheet of transformer

Abstract

The invention discloses a transformer silicon steel sheet punching device and method, and relates to the technical field of transformer punching sheets. Comprising a stamping connecting piece, and a stamping cutting-off part is installed on the stamping connecting piece and used for stamping a transformer silicon steel sheet. A stamping correcting piece is mounted on the stamping cutting part; the stamping correction piece is used for pressing a transformer silicon steel sheet; a single-piece discharging piece is installed on the stamping correcting piece. The single sheet discharging part is used for discharging the stamped silicon steel sheets; a discharging position correcting piece is fixedly installed on the stamping cutting-off part. The edge detection piece can detect the quality of the stamped and cut edge of the silicon steel sheet, so that burrs and the like on the edge of the silicon steel sheet are prevented from being found, and the quality of the subsequently assembled steel sheet can be ensured; the problems that according to an existing transformer silicon steel sheet stamping device, stacking and automatic discharging stamping are not convenient, and the quality of a stamping tool bit is not convenient to test are solved.

Description

Technical Field

[0001] The invention relates to the technical field of transformer punching sheets, and in particular to a device and method for punching transformer silicon steel sheets. Background Art

[0002] Silicon steel sheet, also known as silicon steel sheet, is an alloy steel with a silicon content of 0.8\~4.8%. Silicon steel itself has strong magnetic conductivity and can generate a large magnetic induction intensity in the energized coil, which helps to reduce the size of the transformer. In the actual stamping and manufacturing of silicon steel sheets, it is necessary to stamp and cut the bevels at both ends of the steel sheet to facilitate subsequent assembly. The current transformer silicon steel sheet stamping device is not convenient for stacking automatic discharge stamping, and usually adopts single-piece stamping, which is inefficient. If multiple pieces are stamped, it will affect the edge forming flatness of the silicon steel sheet, and it is not convenient to automatically control the flatness of the silicon steel sheet after single-piece stamping. The corners of the silicon steel sheet are prone to deformation after being pressed. At the same time, it is also not convenient to test the quality of the stamping tool head. It is not easy to find problems such as stamping burrs in time, which affects the processing quality. It is also not convenient to detect the stamping processing accuracy of the silicon steel sheet, and it depends on manual subsequent measurement one by one, which affects the processing efficiency of the silicon steel sheet.

[0003] To this end, we propose a device and method for stamping transformer silicon steel sheets. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for stamping transformer silicon steel sheets to solve the problem mentioned in the above background technology that the current transformer silicon steel sheet stamping device is not convenient for stacking and automatic discharge stamping, and is not convenient for testing the quality of the stamping tool head.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for stamping transformer silicon steel sheets, comprising a stamping connector, a stamping cutting part installed on the stamping connector, the stamping cutting part used for stamping transformer silicon steel sheets; a stamping correcting part installed on the stamping cutting part; the stamping correcting part used for pressing transformer silicon steel sheets; a single-piece discharge part installed on the stamping correcting part; the single-piece discharge part used for discharging stamped silicon steel sheets; a discharge correcting part fixedly installed on the stamping cutting part; the discharge correcting part used for correcting the discharge angle of silicon steel sheets degree; a steel sheet precision detection part is installed on the stamping and cutting part, and the steel sheet precision detection part is used to detect the stamping and cutting precision of the silicon steel sheet; two edge detection parts are installed at the bottom of the steel sheet precision detection part; the two edge detection parts are used to detect the edge forming quality of the silicon steel sheet; the stamping connecting part includes: a stamping support, a limit bar and a limit spring piece, two limit bars are fixedly installed on the top of the stamping support, and the two limit bars are respectively fixedly installed with limit spring pieces, and the two limit spring pieces are respectively V-shaped structures; the two limit spring pieces are used to elastically limit the silicon steel sheet to be processed.

[0006] Preferably, the stamping cutting part includes: a stamping beam, a stamping cutter head, a steel sheet baffle, a discharge port, an electromagnet and a steel sheet limiting strip. Two stamping cutter heads are fixedly installed at the bottom of the stamping beam, and the two stamping cutter heads are installed obliquely respectively; steel sheet baffles are fixedly installed on both sides of the bottom of the stamping beam; the two steel sheet baffles are aligned with the outer edges of the stamping support respectively; the stamping beam is fixedly installed on the output shafts of four stamping hydraulic cylinders; a discharge port is provided on the front steel sheet baffle; the lower edge of the discharge port is lower than the stamping cutter head; the inner sides of the two steel sheet baffles are used to fit the limiting silicon steel sheet; two electromagnets are fixedly installed on the stamping beam; steel sheet limiting strips are fixedly installed on the inner sides of the two steel sheet baffles, and the four steel sheet limiting strips are used to limit the four corners of the silicon steel sheet.

[0007] Preferably, the edge detection component includes: an edge slide plate, a detection mounting plate, a cotton pad, a pressure sensor and an anti-accidental touch spring, the edge slide plate is slidably mounted on the lower mounting plate; the edge slide plate is a rectangular structure; the detection mounting plate is fixedly mounted on the lower mounting plate; a cotton pad is pasted on the edge slide plate, and the cotton pad has a cotton fiber structure; the pressure sensor is fixedly mounted on the detection mounting plate; the end of the pressure sensor is attached to the end of the edge slide plate; two anti-accidental touch springs are fixedly mounted on the detection mounting plate, and the ends of the two anti-accidental touch springs are respectively fixedly mounted on the edge slide; the pressure sensor is externally connected to a display.

[0008] Preferably, the stamping connector further comprises: a stamping hydraulic cylinder, four stamping hydraulic cylinders are fixedly mounted on the stamping support; the stamping hydraulic cylinder is used to drive the stamping silicon steel sheet.

[0009] Preferably, the steel sheet precision detection component comprises: a detection slider, a guide inclined surface, a lower mounting plate, a measuring extension rod, an electronic ruler, a limit column and a measuring tension spring. Two detection sliders are provided, and the two detection sliders are slidably mounted on the stamping support respectively; the inner sides of the two detection sliders are respectively provided with guide inclined surfaces; the bottoms of the two detection sliders are respectively fixedly mounted with lower mounting plates; the two detection sliders are respectively fixedly mounted with measuring extension rods; the two detection sliders are respectively fixedly mounted with measuring extension rods; an electronic ruler is fixedly mounted between the two measuring extension rods, and the electronic ruler is externally connected to a display; a limit column is fixedly mounted on the steel sheet baffle on the front side; the two limit columns are respectively sleeved with measuring tension springs; the ends of the two measuring tension springs are respectively connected to the detection slider; the other ends of the two measuring tension springs are respectively fixedly mounted on the steel sheet baffle on the front side; the ends of the two limit columns are respectively elastically abutted against the detection slider.

[0010] Preferably, the single-piece discharge component includes: a lower pressing block, a conveying wheel and a driving motor, the lower pressing block is slidably installed at the bottom of the correction pressing block; a conveying wheel is rotatably installed on the lower pressing block; the outer side of the conveying wheel is a rubber anti-slip structure; a driving motor is fixedly installed inside the lower pressing block, and a conveying wheel is fixedly installed on the output shaft of the driving motor; the conveying wheel is used to rotate and push out the silicon steel sheet that has been stamped on the upper layer.

[0011] Preferably, the single-piece discharge component also includes: a discharge pressure spring, a row of discharge pressure springs are fixedly mounted on the pressure block, and the ends of a row of discharge pressure springs are respectively fixedly mounted on the inner side of the correction pressure block; a row of discharge pressure springs are respectively located inside the correction pressure block.

[0012] Preferably, the discharge alignment component includes: a discharge alignment fixing strip and an alignment steel sheet, wherein the discharge alignment fixing strip is fixedly mounted on the front steel sheet baffle by a row of bolts; an alignment steel sheet is fixedly mounted on the steel sheet baffle, and the alignment steel sheet is installed obliquely, and the alignment steel sheet is an elastic steel sheet structure; the alignment steel sheet is used to elastically stop the edge of the silicon steel sheet.

[0013] A method for stamping silicon steel sheets for transformers:

[0014] 1) The stamping hydraulic cylinder drives the stamping cutter head to move downward for stamping and cutting. The two electromagnets attract the magnetic suction block, which drives the correction block to generate downward pressure to press the silicon steel sheet;

[0015] 2) Under the pressure of the discharge pressure spring, the conveying wheel elastically fits the cut silicon steel sheet, and the driving motor drives the conveying wheel to rotate, and the cut silicon steel sheet is discharged from the discharge port;

[0016] 3) The silicon steel sheet is discharged from the discharge port, and the two ends of the silicon steel sheet fit the extrusion guide slope. After passing the guide slope, the two ends of the silicon steel sheet fit the inner side of the detection slider, and the length of the two ends of the silicon steel sheet that the tension spring elastically pulls the detection slider to fit is measured, and the reading is read through the electronic ruler external display.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention adopts a stamping cutting part in conjunction with a stamping connecting piece, which can facilitate the direct stamping and cutting work after the steel plates are stacked, and can ensure the stamping and cutting efficiency. At the same time, the structure adopts a stacking and stamping and cutting method, which can also ensure the cutting consistency of a stack of steel sheets, without the need for cumbersome single-piece operation and positioning; the stamping correction piece used can prevent a stack of steel sheets from moving when the stamping head moves down for stamping and cutting, and at the same time, the correction block also plays a role in pressing and correcting the steel sheets, thereby increasing the forming accuracy, especially for the forming of steel sheet corners, which can prevent the corners from being bent downward by the downward pressure stress when the stamping head moves down for stamping and cutting.

[0019] By using a single-piece discharge piece, the upper layer of silicon steel sheets that have been stamped and cut can be discharged with the assistance of rotating friction. The discharge can be carried out in real time to prevent the steel sheets that have been cut from remaining. The downward pressure of the correction block is mainly concentrated on the edge of the steel sheet that has been cut. During subsequent cutting, the downward pressure of the stamping head is likely to cause the cut edge of the steel sheet to bend downward.

[0020] The use of steel sheet precision detection parts can measure the length of the discharged silicon steel sheet, which can prevent the curling of the corners of the silicon steel sheet after cutting due to the blunting of the punch head of the equipment, excessive precision error, or bending deformation and shortening of the silicon steel sheet, thereby ensuring the processing quality of the silicon steel sheet.

[0021] The edge detection parts can be used to detect the edge quality of the silicon steel sheets when they are stamped and cut, and prevent burrs on the edges of the silicon steel sheets from going undetected. This can ensure the quality of the steel sheets after subsequent assembly, and also prevent scratches during subsequent manual processing, thereby reducing the labor intensity of the staff and eliminating the need for tedious inspections. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the bottom structure of the present invention;

[0024] Figure 3 It is a cross-sectional view of the internal structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the stamping connector of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the punching and cutting part of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the stamping correction part of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of a single-piece discharge member of the present invention;

[0029] Figure 8 For the present invention Figure 3 A magnified view of the structure of the middle B region;

[0030] Fig. 9 This is a schematic diagram of the structure of the steel sheet precision detection component of the present invention;

[0031] Fig.10 For the present invention Figure 1 A magnified view of the structure of the middle C region;

[0032] Fig.11 It is a schematic diagram of the structure of the edge detection component of the present invention;

[0033] Fig.12 It is a cross-sectional view of the structure of a single-piece discharge member of the present invention.

[0034] In the figure: 1. Stamping connector; 101. Stamping support; 1011. Limiting strip; 102. Limiting spring; 103. Stamping hydraulic cylinder; 2. Stamping cutting part; 201. Stamping beam; 2011. Stamping cutter head; 202. Steel sheet baffle; 2021. Discharge port; 203. Electromagnet; 204. Steel sheet limiting strip; 3. Stamping correction part; 301. Correction pressure block; 302. Magnetic suction block; 303. Pressing tension spring; 4. Single-piece discharge part; 401. Pressing block; 402. Conveying wheel; 403. Driving motor; 404, discharge pressure spring; 5, discharge alignment piece; 501, discharge alignment fixing strip; 502, alignment steel sheet; 6, steel sheet precision detection piece; 601, detection slider; 6011, guide ramp; 602, lower mounting plate; 603, measuring extension rod; 604, electronic ruler; 605, limit column; 606, measuring tension spring; 7, edge detection piece; 701, edge slide plate; 702, detection mounting plate; 703, cotton pad; 704, pressure sensor; 705, anti-mistouch spring. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Example 1: Please refer to Figure 1-Figure 12 As shown:

[0037] The present invention provides a technical solution: a device for stamping transformer silicon steel sheets, comprising a stamping connector 1, a stamping cutting part 2 is installed on the stamping connector 1, and the stamping cutting part 2 is used to stamp transformer silicon steel sheets; a stamping correcting part 3 is installed on the stamping correcting part 2; the stamping correcting part 3 is used to press the transformer silicon steel sheets; a single-piece discharge part 4 is installed on the stamping correcting part 3; the single-piece discharge part 4 is used to discharge the stamped silicon steel sheets; a discharge correcting part 5 is fixedly installed on the stamping cutting part 2; the discharge correcting part 5 is used to correct the discharge angle of the silicon steel sheets; a steel sheet precision detection device is installed on the stamping cutting part 2 The measuring piece 6, the steel sheet precision detecting piece 6 is used to detect the stamping and cutting precision of the silicon steel sheet; two edge detecting pieces 7 are installed at the bottom of the steel sheet precision detecting piece 6; the two edge detecting pieces 7 are used to detect the edge forming quality of the silicon steel sheet; the stamping connecting piece 1 includes: a stamping support 101, a limit bar 1011 and a limit spring piece 102, two limit bars 1011 are fixedly installed on the top of the stamping support 101, and the limit spring pieces 102 are fixedly installed on the two limit bars 1011, and the two limit spring pieces 102 are respectively V-shaped structures; the two limit spring pieces 102 are used for elastically limiting the silicon steel sheet to be processed.

[0038] Among them, the stamping connection part 1 also includes: a stamping hydraulic cylinder 103, four stamping hydraulic cylinders 103 are fixedly installed on the stamping support 101; the stamping hydraulic cylinder 103 is used to drive the stamping silicon steel sheet; the stamping cutting part 2 includes: a stamping beam 201, a stamping cutter head 2011, a steel sheet baffle 202, a discharge port 2021, an electromagnet 203 and a steel sheet limiting strip 204, two stamping cutter heads 2011 are fixedly installed at the bottom of the stamping beam 201, and the two stamping cutter heads 2011 are respectively installed obliquely; steel sheet baffles 202 are respectively fixedly installed on both sides of the bottom of the stamping beam 201; the two steel sheet baffles 202 are respectively aligned with the outer edges of the stamping support 101; the stamping beam 201 is fixedly installed at the output of the four stamping hydraulic cylinders 103 On the axis; a discharge port 2021 is provided on the front steel sheet baffle 202; the lower edge of the discharge port 2021 is lower than the stamping cutter head 2011; the inner sides of the two steel sheet baffles 202 are used to fit the limiting silicon steel sheet; two electromagnets 203 are fixedly installed on the stamping beam 201; steel sheet limiting strips 204 are respectively fixedly installed on the inner sides of the two steel sheet baffles 202, and the four steel sheet limiting strips 204 are respectively used to limit the four corners of the silicon steel sheet. The stamping cutting part 2 is combined with the stamping connecting part 1, which can facilitate the direct stamping and cutting work after the steel plates are stacked, and the stamping and cutting efficiency can be guaranteed. At the same time, the structure adopts the method of stamping and cutting together by stacking, which can also ensure the cutting consistency of a stack of steel sheets, without the need for cumbersome single-piece operation and positioning, and the operation is simple.

[0039] Among them, the stamping correction piece 3 includes: a correction pressure block 301, a magnetic block 302 and a downward pressure spring 303. The correction pressure block 301 is slidably sleeved on the stamping beam 201; the correction pressure block 301 is used to press the silicon steel sheet; magnetic blocks 302 are fixedly installed on both sides of the correction pressure block 301, and the two magnetic blocks 302 are aligned with the two electromagnets 203 respectively; four downward pressure springs 303 are fixedly installed on the correction pressure block 301, and the ends of the four downward pressure springs 303 are respectively connected to the stamping beam 201; the outer side of the correction pressure block 301 is attached to the inner side of the stamping cutter head 2011; the adopted stamping correction piece 3 can ensure the stamping and cutting accuracy by pressing, and can prevent the stamping cutter head from being pressed. When 2011 moves down for punching and cutting, a pile of steel sheets moves. At the same time, the correction pressure block 301 also plays the role of pressing and correcting the steel sheets, which promotes the flatness of the steel sheets and increases the forming accuracy, especially for the forming of the edges and corners of the steel sheets, which can prevent the edges and corners from being bent downward by the downward pressure stress when the punch head 2011 moves down for punching and cutting. The correction pressure block 301 used can be flexibly controlled to rise and fall by the electromagnet 203, and the structure is simple. When the stamping hydraulic cylinder 103 drives the punch head 2011 to move down for punching and cutting, the two electromagnets 203 can be used to magnetically absorb the magnetic block 302, so as to drive the correction pressure block 301 to generate downward pressure to press the silicon steel sheet, and the magnetic suction pulling method can be used for flexible adjustment.

[0040] Among them, the single-piece discharge component 4 includes: a lower pressing block 401, a conveying wheel 402 and a driving motor 403, the lower pressing block 401 is slidably installed at the bottom of the correction pressing block 301; the conveying wheel 402 is rotatably installed on the lower pressing block 401; the outer side of the conveying wheel 402 is a rubber anti-slip structure; the driving motor 403 is fixedly installed inside the lower pressing block 401, and the conveying wheel 402 is fixedly installed on the output shaft of the driving motor 403; the conveying wheel 402 is used to rotate and push out the silicon steel sheet completed by the upper stamping; the single-piece discharge component 4 also includes: a discharge downward pressure spring 404, a row of discharge downward pressure springs 404 are fixedly installed on the lower pressing block 401, and the ends of a row of discharge downward pressure springs 404 are respectively fixedly installed on the inner side of the correction pressing block 301; a row of discharge downward pressure springs 404 are respectively located inside the correction pressing block 301; the use of the single-piece discharge component 4 can realize the discharge of the silicon steel sheet completed by the upper stamping and cutting through the rotating friction force, and can be discharged in real time, which can prevent If the steel sheet that has been cut is still left, the downward pressure of the correction block 301 is mainly concentrated on the edge of the steel sheet that has been cut. The downward pressure of the punch head 2011 during subsequent cutting may easily cause the cut edge of the steel sheet to bend downward. This structure can ensure that when the punch head 2011 presses down to cut the steel sheet, the correction block 301 can press down the silicon steel sheet on the inner side of the punch head 2011 to ensure that the edge of each silicon steel sheet is flat, which is more suitable for multi-layer cutting work. 403 drives the conveying wheel 402 to rotate, so that the cut silicon steel sheet can be discharged from the discharge port 2021. The two steel sheet baffles 202 used in this structure can move downward together with the downward movement of the punching cutter head 2011. When the cut silicon steel sheet is discharged from the discharge port 2021, the uncut silicon steel sheet can be stopped from the lower edge of the discharge port 2021 to prevent the uncut silicon steel sheet from being discharged together. The method of discharging the cut silicon steel sheet can also facilitate subsequent inspection work.

[0041] Among them, the discharge alignment member 5 includes: a discharge alignment fixing strip 501 and an alignment steel sheet 502. The discharge alignment fixing strip 501 is fixedly mounted on the front steel sheet baffle 202 by a row of bolts; the alignment steel sheet 502 is fixedly mounted on the steel sheet baffle 202, and the alignment steel sheet 502 is obliquely mounted, and the alignment steel sheet 502 is an elastic steel sheet structure; the alignment steel sheet 502 is used to elastically stop the edge of the silicon steel sheet; the steel sheet accuracy detection member 6 includes: a detection slider 601, a guide slope 6011, a lower mounting plate 602, a measuring extension rod 603, an electronic ruler 604, a limit column 605 and a measuring tension spring 606, and an SDMSS type electronic ruler 6 can be used. 04, and adopts its matching display, there are two detection sliders 601, the two detection sliders 601 are slidably installed on the stamping support 101 respectively; the inner sides of the two detection sliders 601 are respectively provided with guiding inclined surfaces 6011; the bottoms of the two detection sliders 601 are respectively fixedly installed with lower mounting plates 602; the two detection sliders 601 are respectively fixedly installed with measuring extension rods 603; an electronic ruler 604 is fixedly installed between the two measuring extension rods 603, and the electronic ruler 604 is externally connected with a display; a limit column 605 is fixedly installed on the front steel sheet baffle 202; the two limit columns 605 are respectively sleeved with measuring tension springs 606; the two measuring tension springs The ends of 606 are respectively connected to the detection slider 601; the other ends of the two measuring tension springs 606 are respectively fixedly installed on the steel sheet baffle 202 on the front side; the ends of the two limit columns 605 are respectively elastically pressed against the detection slider 601; the steel sheet precision detection part 6 can be used to measure the length of the discharged silicon steel sheet, which can prevent the curling of the corners of the silicon steel sheet after cutting due to the passivation of the stamping cutter head 2011 of the equipment, excessive precision error, or bending deformation of the steel sheet, and shortening of the length. The processing quality of the silicon steel sheet can be ensured, especially for the silicon steel sheet used in the transformer, to ensure the production and processing accuracy of the silicon steel sheet, which can facilitate timely maintenance and replacement of the stamping cutter head. 2011, more in line with actual use needs, the detection of this structure is direct and flexible, and the use of the discharge alignment member 5 can ensure the detection accuracy of this structure, ensuring that the two ends of the silicon steel sheet can be vertically detected by the slider 601 when discharged, to prevent the silicon steel sheet from being discharged crookedly, resulting in inaccurate detection data, when the silicon steel sheet is discharged from the discharge port 2021, the edge of the silicon steel sheet can be elastically stopped by the alignment steel sheet 502, at this time, the silicon steel sheet can be blocked and corrected by the alignment steel sheet 502, ensuring that the edge of the silicon steel sheet can fit the alignment steel sheet 502, as the subsequent single-piece discharge member 4 continues to push the silicon steel sheet to move, the alignment steel sheet 502 can elastically deform upward, to ensure that the silicon steel sheet can be discharged smoothly.

[0042] Embodiment 2, on the basis of embodiment 1, the edge detection component 7 comprises: an edge slide plate 701, a detection mounting plate 702, a cotton pad 703, a pressure sensor 704 and an anti-mistaken touch spring 705, and an HZC-H1 type pressure sensor 704 can be used, and its matching display is used, the edge slide plate 701 is slidably installed on the lower mounting plate 602; the edge slide plate 701 is a rectangular structure; the detection mounting plate 702 is fixedly installed on the lower mounting plate 602; a cotton pad 703 is pasted on the edge slide plate 701, and the cotton pad 703 has a cotton fiber structure; the pressure sensor 704 is fixedly installed on the detection mounting plate 702; the end of the pressure sensor 704 is attached to the end of the edge slide plate 701; two anti-mistaken touch springs 705 are fixedly installed on the detection mounting plate 702, and the two anti-mistaken touch The ends of the spring 705 are fixedly mounted on the edge slide 701 respectively; the pressure sensor 704 is externally connected to a display, and the edge detection component 7 can be used to detect the quality of the stamping and cutting edges of the silicon steel sheet, thereby preventing burrs on the edges of the silicon steel sheet from being undetected, thereby ensuring the quality of the steel sheet after subsequent assembly, and also preventing scratches during subsequent manual processing. The structure is directly detectable and can utilize the burr detection method to reduce the labor intensity of the staff without the need for tedious inspections, thereby avoiding burrs on the stamping and cutting edges of the silicon steel sheet due to damage to the stamping cutter head 2011. The structure is simpler and more reasonable, and digital display prompts can be given in a timely manner. The structure is mature and reliable, and once burrs appear on the edge of the silicon steel sheet, the abnormal value can be observed in real time through the external display of the pressure sensor 704.

[0043] A method for stamping silicon steel sheets for transformers:

[0044] 1) The stamping hydraulic cylinder 103 drives the stamping cutter head 2011 to move downward for stamping and cutting. The two electromagnets 203 attract the magnetic block 302, driving the correction block 301 to generate downward pressure to press the silicon steel sheet;

[0045] 2) Under the pressure of the discharge pressure spring 404, the conveying wheel 402 elastically fits the cut silicon steel sheet, and the driving motor 403 drives the conveying wheel 402 to rotate, and the cut silicon steel sheet is discharged from the discharge port 2021;

[0046] 3) The silicon steel sheet is discharged from the discharge port 2021, and the two ends of the silicon steel sheet are pressed against the guiding inclined surface 6011. After passing through the guiding inclined surface 6011, the two ends of the silicon steel sheet are pressed against the inner side of the detection slider 601, and the length of the two ends of the silicon steel sheet that are elastically pulled by the tension spring 606 to fit the detection slider 601 is measured, and the reading is read through the external display of the electronic ruler 604.

[0047] The working principle of this embodiment is as follows: first, stack the steel sheets between the two limit springs 102, and at the same time place the steel sheets between the two steel sheet baffles 202. The stamping hydraulic cylinder 103 drives the stamping cutter head 2011 to move down to achieve the one-time processing. When the stamping hydraulic cylinder 103 drives the stamping cutter head 2011 to move down for stamping and cutting, the two electromagnets 203 can be used to magnetically attract the magnetic block 302, so as to drive the correction block 301 to produce a positive rotation. The pressure from the punch head 2011 is pressed down to cut off the edge of the steel sheet, and the two electromagnets 203 are powered off. At this time, under the pressure of the discharge pressure spring 404, the conveying wheel 402 elastically fits the cut silicon steel sheet, and the conveying wheel 402 is driven by the driving motor 403 to rotate, so that the cut silicon steel sheet can be discharged from the discharge port 2021; when the silicon steel sheet is discharged from the discharge port 2021, the edge of the silicon steel sheet can be elastically stopped by the aligning steel sheet 502 At this time, the silicon steel sheet can be blocked and corrected by the aligning steel sheet 502, ensuring that the edge of the silicon steel sheet can fit the aligning steel sheet 502. As the subsequent single-piece discharge member 4 continues to push the silicon steel sheet to move, the aligning steel sheet 502 can elastically deform upward to ensure that the silicon steel sheet can be discharged smoothly. As the silicon steel sheet is discharged, the two ends of the silicon steel sheet fit the extrusion guide slope 6011. After the two ends of the silicon steel sheet pass through the guide slope 6011, they fit the inner side of the detection slider 601, and the tension spring is measured during the process. 606 The elastic pulling detection slider 601 is adapted to the length of both ends of the silicon steel sheet, and the reading can be taken through the electronic ruler 604; when the silicon steel sheet is discharged from the discharge port 2021, the edge of the silicon steel sheet will fit on the cotton pad 703. Once burrs appear on the edge of the silicon steel sheet, the cotton pad 703 will be hooked. At this time, the cotton pad 703 will drive the edge slide 701 to compress the anti-mistouch spring 705 and squeeze the pressure sensor 704. The abnormal value can be observed in real time through the external display.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A punching device for transformer silicon steel sheets, comprising a punching connector (1), on which a punching cutting portion (2) is mounted, characterized in that: The punching and cutting part (2) is used for punching transformer silicon steel sheets; a punching and correcting part (3) is installed on the punching and cutting part (2); the punching and correcting part (3) is used for pressing transformer silicon steel sheets; The stamping correction part (3) is provided with a single-piece discharge part (4); the single-piece discharge part (4) is used to discharge the stamped silicon steel sheets; A discharge positioning member (5) is fixedly mounted on the punching and cutting portion (2); the discharge positioning member (5) is used to correct the discharge angle of the silicon steel sheet; A steel sheet precision detection component (6) is installed on the punching and cutting part (2), and the steel sheet precision detection component (6) is used to detect the punching and cutting precision of the silicon steel sheet; Two edge detection components (7) are installed at the bottom of the steel sheet precision detection component (6); the two edge detection components (7) are used to detect the edge forming quality of the silicon steel sheet; The stamping connector (1) comprises: a stamping support (101), a limiting strip (1011) and a limiting spring sheet (102); two limiting strips (1011) are fixedly mounted on the top of the stamping support (101), and the limiting spring sheets (102) are respectively fixedly mounted on the two limiting strips (1011); the two limiting spring sheets (102) are respectively of V-shaped structure; the two limiting spring sheets (102) are used for elastically limiting the silicon steel sheet to be processed.

2. The punching device for transformer silicon steel sheet according to claim 1, characterized in that: The stamping connection piece (1) further comprises: a stamping hydraulic cylinder (103), four stamping hydraulic cylinders (103) being fixedly mounted on the stamping support (101); the stamping hydraulic cylinder (103) being used to drive the stamping silicon steel sheet.

3. The punching device for transformer silicon steel sheet according to claim 2, characterized in that: The punching and cutting part (2) comprises: a punching beam (201), a punching cutter head (2011), a steel sheet baffle (202), a discharge port (2021), an electromagnet (203) and a steel sheet limiting strip (204); two punching cutter heads (2011) are fixedly mounted on the bottom of the punching beam (201), and the two punching cutter heads (2011) are respectively installed obliquely; and steel sheet baffles (202) are respectively fixedly mounted on both sides of the bottom of the punching beam (201).

4. The punching device for transformer silicon steel sheet according to claim 3, characterized in that: The two steel sheet baffles (202) are respectively aligned with the outer edges of the stamping support (101); the stamping beam (201) is fixedly mounted on the output shafts of the four stamping hydraulic cylinders (103); a discharge port (2021) is provided on the front steel sheet baffle (202); the lower edge of the discharge port (2021) is lower than the stamping cutter head (2011); the inner sides of the two steel sheet baffles (202) are used to fit the silicon steel sheet for limiting the position; two electromagnets (203) are fixedly mounted on the stamping beam (201); steel sheet limiting strips (204) are respectively fixedly mounted on the inner sides of the two steel sheet baffles (202), and the four steel sheet limiting strips (204) are respectively used to limit the four corners of the silicon steel sheet.

5. The punching device for transformer silicon steel sheet according to claim 4, characterized in that: The stamping correction piece (3) comprises: a correction pressing block (301), a magnetic attraction block (302) and a downward tension spring (303); the correction pressing block (301) is slidably sleeved on the stamping beam (201); the correction pressing block (301) is used to press the silicon steel sheet.

6. The punching device for transformer silicon steel sheet according to claim 5, characterized in that: Magnetic blocks (302) are fixedly installed on both sides of the correction pressure block (301), and the two magnetic blocks (302) are respectively aligned with the two electromagnets (203); four downward pressure springs (303) are fixedly installed on the correction pressure block (301), and the ends of the four downward pressure springs (303) are respectively connected to the stamping beam (201); the outer side of the correction pressure block (301) is attached to the inner side of the stamping tool head (2011).

7. The punching device for transformer silicon steel sheet according to claim 6, characterized in that: The single-piece discharge member (4) comprises: a lower pressing block (401), a conveying wheel (402) and a driving motor (403); the lower pressing block (401) is slidably mounted on the bottom of the correction pressing block (301); a conveying wheel (402) is rotatably mounted on the lower pressing block (401); the outer side of the conveying wheel (402) is a rubber anti-slip structure; a driving motor (403) is fixedly mounted inside the lower pressing block (401), and a conveying wheel (402) is fixedly mounted on the output shaft of the driving motor (403); the conveying wheel (402) is used to rotate and push out the silicon steel sheet that has been stamped on the upper layer.

8. The punching device for transformer silicon steel sheet according to claim 7, characterized in that: The single-piece discharge member (4) further comprises: a discharge downward pressure spring (404); a row of discharge downward pressure springs (404) are fixedly mounted on the downward pressure block (401); and ends of a row of discharge downward pressure springs (404) are respectively fixedly mounted on the inner side of the correction pressure block (301); a row of the discharge downward pressure springs (404) are respectively located inside the correction pressure block (301).

9. The punching device for transformer silicon steel sheet according to claim 3, characterized in that: The discharge alignment member (5) comprises: a discharge alignment fixing strip (501) and an alignment steel sheet (502); the discharge alignment fixing strip (501) is fixedly mounted on the front steel sheet baffle (202) by a row of bolts; the alignment steel sheet (502) is fixedly mounted on the steel sheet baffle (202), and the alignment steel sheet (502) is obliquely mounted; the alignment steel sheet (502) is an elastic steel sheet structure; the alignment steel sheet (502) is used to elastically stop the edge of the silicon steel sheet.

10. A method for stamping transformer silicon steel sheets, using the device for stamping transformer silicon steel sheets as claimed in claim 8, characterized in that: The steps include: 1) The stamping hydraulic cylinder (103) drives the stamping cutter head (2011) to move downward for stamping and cutting, and the two electromagnets (203) attract the magnetic suction block (302), driving the correction pressing block (301) to generate downward pressure to press the silicon steel sheet; 2) Under the pressure of the discharge downward pressure spring (404), the conveying wheel (402) elastically fits the cut silicon steel sheet, and the driving motor (403) drives the conveying wheel (402) to rotate, and the cut silicon steel sheet is discharged from the discharge port (2021); 3) The silicon steel sheet is discharged from the discharge port (2021), and the two ends of the silicon steel sheet are pressed against the guiding inclined surface (6011). After passing through the guiding inclined surface (6011), the two ends of the silicon steel sheet are pressed against the inner side of the detection slider (601), and the length of the two ends of the silicon steel sheet elastically pulled by the tension spring (606) to be adapted to the detection slider (601) is measured, and the reading is obtained through the electronic ruler (604) external display.

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