A transformer core silicon steel sheet stacking device

Abstract

The present invention provides a transformer core silicon steel sheet stacking device, which relates to the technical field of transformer core production equipment; it includes a first bearing platform, a second bearing platform, a stacking structure and a stacking platform, wherein the stacking mechanism includes a base, a lifting mounting seat arranged on the base, and a rotatable main arm arranged on the mounting seat, the main arm is provided with a first arm and a second arm perpendicular to each other, and a first grabbing unit and a second grabbing unit are respectively provided on the free ends of the first arm and the second arm, the first grabbing unit can be switched between a first position above the first silicon steel sheet and a second position above the bottom support, and the second grabbing unit is correspondingly switched between a third position above the bottom support and a fourth position above the second silicon steel sheet. The transformer core silicon steel sheet stacking device of the present invention has a lower manufacturing cost.

Description

Technical Field

[0001] The invention relates to the technical field of transformer core production equipment, and in particular to a transformer core silicon steel sheet stacking device. Background Art

[0002] The iron core of a transformer is generally made of stacked silicon steel sheets. Figure 1 As shown, it is formed by stacking 5 groups of silicon steel sheets in sequence.

[0003] When producing the iron core, generally after the silicon steel sheet cross-cutting line completes the cutting of various silicon steel sheets, the staff manually stacks the various silicon steel sheets on the stacking table to form the iron core, which is labor-intensive and has low work efficiency. At present, some equipment can automatically complete the stacking of silicon steel sheets for iron cores. This part of the equipment generally uses a manipulator with high repeatability positioning accuracy to complete the grabbing and stacking of silicon steel sheets. For example, this type of automatic iron core stacking equipment can refer to the Chinese invention patent with application number 2023106219115, entitled A silicon steel sheet shearing and stacking integrated device and method.

[0004] However, the above equipment has the following defects: the cost of the robot is high, and the repeated positioning accuracy requirements of other structures of the automatic stacking equipment are also high, otherwise the positioning holes on the silicon steel sheets may not be aligned with the positioning rods on the stacking table, and the silicon steel sheets will not be able to be stacked accurately. Summary of the invention

[0005] To this end, the present invention proposes a transformer core silicon steel sheet stacking device to at least partially solve the technical problem that the existing automatic stacking equipment has a high requirement for repeated positioning accuracy.

[0006] The technical solution of the present invention is as follows:

[0007] A transformer core silicon steel sheet stacking device, comprising:

[0008] A first loading platform and a second loading platform, wherein the first loading platform is used to load first silicon steel sheets that are parallel to each other, and the second loading platform is used to load second silicon steel sheets that are parallel to each other;

[0009] The lamination mechanism comprises a base, a mounting seat which can be lifted and lowered on the base, and a main arm which can be rotatably mounted on the mounting seat, wherein a first arm and a second arm which are perpendicular to each other are arranged on the main arm, and a first grasping unit and a second grasping unit are respectively arranged on the free ends of the first arm and the second arm;

[0010] A stacking platform, comprising a base and a bottom bracket arranged on the base; two positioning members are respectively arranged on the bottom bracket corresponding to each of the first silicon steel sheet and the second silicon steel sheet, the positioning member comprises a cylinder fixedly arranged on the bottom bracket, and a driving member and three positioning rods penetrated in the cylinder, and through holes are opened on the cylinder corresponding to the three positioning rods, and elastic members are respectively arranged between the three positioning rods and the inner wall of the cylinder, the three positioning rods can be pushed by the elastic members to be retracted into the cylinder, and can be pushed by the driving member to protrude from the outer periphery of the cylinder through the through holes;

[0011] The first grabbing unit can be switched between a first position above the first silicon steel sheet and a second position above the bottom bracket, and the second grabbing unit can be switched between a third position above the bottom bracket and a fourth position above the second silicon steel sheet accordingly;

[0012] The first silicon steel sheet and the second silicon steel sheet can be grasped by the first grasping unit and the second grasping unit respectively, and released above the base, the positioning holes on the first silicon steel sheet and the second silicon steel sheet can be sleeved on the corresponding positioning members and slide onto the base, and the driving member can drive each positioning rod to protrude from the cylinder to position each first silicon steel sheet and each second silicon steel sheet.

[0013] Furthermore, the first bearing platform is provided with a plurality of first bearing grooves, each of the first bearing grooves is used to correspondingly bear each of the first silicon steel sheets; a process groove group corresponding to each of the first bearing grooves is provided on the first bearing platform, each of the process groove groups respectively includes a plurality of process grooves spaced apart along the length direction of the first bearing groove, each of the process grooves respectively includes an avoidance section and a working section, the avoidance section is parallel to the first bearing groove and deeper than the first bearing groove, the working section is perpendicular to and intersects with the avoidance section, and intersects with the first bearing groove, and an avoidance cavity intersecting with the bottom ends of the avoidance section and the working section is provided in the first bearing platform.

[0014] Furthermore, the first grabbing unit includes a fixed seat fixed on the first support arm, and a lifting seat that can be lifted and lowered and is arranged on the fixed seat; a supporting piece corresponding to each of the process slots is provided on the lifting seat, and each of the supporting pieces includes a rotatable rotating shaft arranged on the lifting seat, and a supporting plate fixed on the bottom end of the rotating shaft; the supporting plate can penetrate into the avoidance cavity through the avoidance section, and rotate with the rotating shaft, the supporting plate can rotate to be opposite to the working section, and can lift the first silicon steel sheet through the working section.

[0015] Furthermore, the lifting seat is located above the fixed seat; the bottom surface of the fixed seat is provided with guide cylinders for the rotating shafts to pass through one by one, and a pressure plate is fixed on the outer periphery of each guide cylinder, and when the support plate lifts the first silicon steel sheet, the pressure plate can clamp the first silicon steel sheet with the support plate.

[0016] Furthermore, a first gear is fixedly sleeved on one end of each rotating shaft located in the lifting seat; an electric telescopic rod is provided on the lifting seat, a connecting plate is fixed on the telescopic end of the electric telescopic rod, and a plurality of racks perpendicular to the connecting plate are fixed on the connecting plate, and the first gear on each rotating shaft corresponding to the same process tank group is meshed with the same rack.

[0017] Furthermore, an air path connected to an external air supply device is provided in the base, and an air vent connected to the air path is provided on each of the cylinders.

[0018] Furthermore, process plates are fixed on the upper and lower ends of each of the positioning rods, and process holes are respectively opened on the process plates at both ends; corresponding to the process holes of each of the positioning rods, process rods are respectively provided on the inner wall of the cylinder, and the process holes are sleeved on the process holes. The elastic member is a spring sleeved on the process rod, and the spring abuts between the process plate and the inner wall of the cylinder.

[0019] Furthermore, along the axial direction of the positioning rod, a plurality of thrust bearing grooves are spaced apart on the outer circumference of each positioning rod; the lower side surface of each thrust bearing groove is perpendicular to the axial direction of the positioning rod, and the upper side surface of each thrust bearing groove is an inclined surface extending upward and outward.

[0020] Furthermore, a slide plate is provided on the base support, and the slide plate can move on the base support along the axial direction of the cylinder; each of the driving members includes a rod body fixed on the slide plate, and a push block is provided on the outer periphery of the positioning rod, which can be inserted into each of the thrust grooves in a one-to-one manner, and the push block has an inclined surface abutting against the upper side surface of the thrust groove.

[0021] The working principle and beneficial effects of the present invention are:

[0022] The transformer core silicon steel sheet stacking device provided by the present invention, on the one hand, by setting the positioning piece corresponding to the positioning hole on the silicon steel sheet to include a cylinder and three positioning rods arranged in the cylinder, when the silicon steel sheets are stacked on the bottom bracket, the positioning hole can be easily sleeved on the cylinder with a smaller diameter, and after the positioning hole is sleeved on the cylinder, the positioning rod can be protruded from the cylinder and abutted against the inner wall of the positioning hole, so that the positioning of the silicon steel sheet can be completed, that is, the positioning accuracy of the silicon steel sheet is required to be low. On the other hand, due to the low positioning accuracy requirement for the silicon steel sheet, the stacking structure can have a lower manufacturing difficulty and processing cost, and the stacking structure of the present invention, by setting two arms, the two arms can alternately complete the grasping and stacking of the corresponding silicon steel sheets, and has a higher stacking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] Figure 1 is a three-dimensional diagram of a transformer core;

[0025] Figure 2 A top view of a transformer core silicon steel sheet stacking device provided in an embodiment of the present invention;

[0026] Figure 3 An exploded view of a first bearing platform provided in an embodiment of the present invention;

[0027] Figure 4 A three-dimensional diagram of a lamination mechanism provided in an embodiment of the present invention;

[0028] Figure 5 A three-dimensional diagram of a first grabbing unit provided in an embodiment of the present invention;

[0029] Figure 6 An exploded diagram of a first grabbing unit provided in an embodiment of the present invention;

[0030] Figure 7 A three-dimensional diagram of a stacking station provided by an embodiment of the present invention;

[0031] Figure 8 An exploded view of a positioning member provided in an embodiment of the present invention;

[0032] Fig. 9 for Figure 8 A partial enlarged view of the middle A;

[0033] Fig.10 for Figure 7 A partial enlarged view of point B in the middle.

[0034] In the figure: 100, first bearing platform; 101, first bearing tank; 102, process tank; 1021, avoidance section; 2022, working section; 103, avoidance chamber;

[0035] 200, Second bearing platform;

[0036] 300, Laminating mechanism; 310, Base; 320, Mounting seat; 330, Main arm; 341, First support arm; 342, Second support arm; 350, First grasping unit; 351, Fixed seat; 3511, Guide tube; 3512, Pressure plate; 352, Lifting seat; 3521, Rotating shaft; 3522, Support plate; 3523, First gear; 3524, Electric telescopic rod; 3525, Connecting plate; 3526, Rack; 360, Second grasping unit;

[0037] 400, Stacking platform; 410, Base; 420, Bottom support; 430, Positioning member; 431, Cylinder body; 432, Positioning rod; 4321, Process plate; 433, Driving member; 4331, Pusher block; 440, Slide plate; 401, Through hole; 402, Thrust receiving groove; 403, Air circuit; 404, Vent hole;

[0038] 510, First silicon steel sheet; 520, Second silicon steel sheet;

[0039] 600, Silicon steel sheet horizontal cutting line. Specific embodiments

[0040] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present invention.

[0041] This embodiment will take the stacking of a core in the shape of a "day" as shown in Figure 1 as an example to introduce the silicon steel sheet stacking device for transformer cores. Obviously, the silicon steel sheet stacking device for transformer cores in this embodiment can also complete the stacking of cores in the shape of a "square", and the principle is the same, which will not be elaborated in this embodiment.

[0042] This embodiment provides a silicon steel sheet stacking device for transformer cores, which will be simply referred to as a stacking device hereinafter. Referring to Figure 2 as shown, the stacking device includes a first bearing platform 100, a second bearing platform 200, a laminating structure and a stacking platform 400; in terms of the overall structure, the laminating structure in this embodiment can alternately stack the silicon steel sheets on the first bearing platform 100 and the second bearing platform 200 on the stacking platform 400 to complete the stacking of the transformer core.

[0043] In this embodiment, the first loading platform 100 is used to load parallel first silicon steel sheets 510, and the second loading platform 200 is used to load parallel second silicon steel sheets 520. Figure 1 As shown, the first silicon steel sheets 510 of this embodiment are three parallel silicon steel sheets forming a “sun” shape; the second silicon steel sheets 520 are another two parallel silicon steel sheets forming a “sun” shaped iron core.

[0044] refer to Figure 3 As shown, three first bearing slots 101 are provided on the first bearing platform 100, and the three first bearing slots 101 are used to carry three first silicon steel sheets 510 in a one-to-one correspondence. Three process slots 102 groups corresponding to the three first bearing slots 101 are provided on the first bearing platform 100; and each process slot 102 group includes two process slots 102 spaced apart along the length direction of the first bearing slot 101.

[0045] In some embodiments, each group of process tanks 102 may also include three, four, or other numbers of process tanks 102 .

[0046] refer to Figure 3 As shown, each process tank 102 includes an avoidance section 1021 and a working section 2022. The avoidance section 1021 is located on one side of the corresponding first bearing tank 101 and is parallel to the corresponding first bearing tank 101, and the depth of the avoidance section 1021 is deeper than the depth of the first bearing tank 101. The working section 2022 is perpendicular to and intersects with the avoidance section 1021 and intersects with the first bearing tank 101. A avoidance cavity 103 intersecting with the bottom ends of the avoidance section 1021 and the working section 2022 is provided in the first bearing platform 100.

[0047] In this embodiment, by setting the above-mentioned process slots 102 groups, it is convenient for the first grabbing unit 350 described below to grab the multiple layers of first silicon steel sheets 510 in each first bearing slot 101, and the specific grabbing method will be described below. It should be noted that when stacking silicon steel sheets, single-layer alternating stacking or multi-layer alternating stacking can be performed, and the solution of this embodiment is suitable for multi-layer alternating stacking.

[0048] The structure and working principle of the second carrying platform 200 are substantially the same as those of the first carrying platform 100 , and will not be described in detail herein.

[0049] It should be noted that the staff can manually place multiple layers of first silicon steel sheets 510 in each first loading groove 101 on the first loading platform 100; and place multiple layers of second silicon steel sheets 520 in each second loading groove on the second loading platform 200, and wait for the stacking mechanism 300 to stack the first silicon steel sheets 510 and the second silicon steel sheets 520 on the stacking platform 400.

[0050] You can also Figure 1 As shown, by making the first carrier 100 and the second carrier 200 reciprocate between the working position and the output end of the silicon steel sheet transverse shearing line 600, respectively, the first carrier 100 and the second carrier 200 can receive the corresponding first silicon steel sheet 510 and the second silicon steel sheet 520 at the output end of the silicon steel sheet transverse shearing line 600; and can move and rotate to the working position to wait for the lamination mechanism 300 to grab the first silicon steel sheet 510 or the second silicon steel sheet 520 thereon. Among them, the movement of the first carrier 100 and the second carrier 200, and the structure of receiving the first silicon steel sheet 510 and the second silicon steel sheet 520 at the output end of the silicon steel sheet transverse shearing line 600 can refer to the prior art, and will not be repeated here.

[0051] refer to Figure 4 As shown, the stacking mechanism 300 of this embodiment includes a base 310, a liftable mounting base 320 disposed on the base 310, and a rotatable main arm 330 disposed on the mounting base 320; a first arm 341 and a second arm 342 that are perpendicular to each other are disposed on the main arm 330, and a first grasping unit 350 and a second grasping unit 360 are respectively disposed on the free ends of the first arm and the second arm 342.

[0052] The base 310 is a foundation for installing the main arm 330 and the mounting seat 320, which can be set as needed, and its structure is not described in detail here. The structure of the mounting seat 320 driven by a motor or a hydraulic cylinder to rise and fall relative to the base 310, and the structure of the main arm 330 driven by a motor to rotate on the mounting seat 320 can refer to the prior art, and they are not described in detail here.

[0053] refer to Figure 4 As shown, in this embodiment, the axes of the first arm 341 and the second arm 342 are both perpendicular to the axis of the main arm 330 , and the axis of the first arm 341 is perpendicular to the axis of the second arm 342 .

[0054] refer to Figure 4 and Figure 5 As shown, the first grabbing unit 350 of this embodiment includes a fixed seat 351 fixed on the free end of the first arm 341, and a lifting seat 352 that can be lifted and lowered and is arranged on the fixed seat 351. The lifting seat 352 is provided with supporting pieces corresponding to each process tank 102, and each supporting piece includes a rotating shaft 3521 rotatably arranged on the lifting seat 352, and a supporting plate 3522 fixed on the bottom end of the rotating shaft 3521.

[0055] Based on the structure of the first grabbing unit 350 described above, when grabbing each first silicon steel sheet 510, the lifting seat 352 can first drive the rotating shaft 3521 and the support plate 3522 to descend, so that the support plate 3522 can penetrate into the avoidance cavity 103 from the avoidance section 1021. After the support plate 3522 reaches the avoidance cavity 103, the rotating shaft 3521 drives the support plate 3522 to rotate in the avoidance cavity 103 until it rotates to the working section 2022, that is, below the first silicon steel sheet 510. Subsequently, the lifting seat 352 drives the support plate 3522 to rise, so that each first silicon steel sheet 510 can be lifted up to complete the grabbing of the first silicon steel sheet 510.

[0056] In this embodiment, reference Figure 4 and Figure 5 As shown, the lifting seat 352 is located above the fixed seat 351; and on the bottom surface of the fixed seat 351 are provided guide cylinders 3511 for the rotating shafts 3521 to pass through one by one, and on the outer periphery of each guide cylinder 3511 are respectively fixedly provided a pressure plate 3512; when the supporting plate 3522 lifts up the first silicon steel sheet 510, the pressure plate 3512 can clamp the first silicon steel sheet 510 with the supporting plate 3522.

[0057] That is, in this embodiment, by providing the above-mentioned pressure plate 3512, when the lifting seat 352 drives the support plate 3522 to rise, the fixed seat 351 can be kept stationary first until the support plate 3522 and the pressure plate 3512 clamp each first silicon steel sheet 510; then, when the fixed seat 351 and the lifting seat 352 move with the first support arm 341, the first silicon steel sheet 510 can be kept fixed relative to the first grabbing unit 350.

[0058] In this embodiment, reference Figure 6 As shown, a first gear 3523 is fixedly sleeved on one end of each rotating shaft 3521 located in the lifting seat 352; and an electric telescopic rod 3524 is provided on the lifting seat 352; a connecting plate 3525 is fixedly provided on the telescopic end of the electric telescopic rod 3524, and a plurality of racks 3526 perpendicular to the connecting plate 3525 are fixedly provided on the connecting plate 3525, and the first gear 3523 in the same row is meshed with the same rack 3526.

[0059] Based on the above structure, when the telescopic end of the electric telescopic rod 3524 is extended and retracted, it can simultaneously drive each gear and the corresponding rotating shaft 3521 to rotate. In some embodiments, a motor can also be provided for each rotating shaft 3521 to drive the rotating shaft 3521 to rotate, but compared with the solution of this embodiment, its structure is obviously more complicated.

[0060] The second grabbing unit 360 has substantially the same structure and working principle as the first grabbing unit 350 , which will not be described in detail herein.

[0061] refer to Figure 7As shown, the stacking platform 400 of this embodiment includes a base 410 and a bottom bracket 420 disposed on the base 410 ; corresponding to each first silicon steel sheet 510 and each second silicon steel sheet 520 , two positioning members 430 are respectively disposed on the bottom bracket 420 .

[0062] refer to Figure 8 As shown, the positioning member 430 includes a cylinder 431 arranged on the base 420, and a driving member 433 and three positioning rods 432 passing through the cylinder 431. Through holes 401 are opened on the cylinder 431 corresponding to the three positioning rods 432, and elastic members are respectively provided between the three positioning rods 432 and the inner wall of the cylinder 431. The three positioning rods 432 can be pushed by the elastic members to retract into the cylinder 431, and can be pushed by the driving member 433 to protrude from the outer periphery of the cylinder 431 through the through holes 401.

[0063] Specifically, in the positioning piece 430 of the present embodiment, the diameter of the cylinder 431 is smaller than the diameter of the corresponding positioning holes on the first silicon steel sheet 510 and the second silicon steel sheet 520, and the difference between the two can be, for example, about 2 mm, so that the positioning holes on the first silicon steel sheet 510 and the second silicon steel sheet 520 can be easily mounted on the cylinder 431, or in other words, the stacking device has lower requirements on the repeatable positioning accuracy of each moving part, so as to facilitate the processing of the stacking device, thereby making the stacking device have a lower production cost.

[0064] After the positioning holes on the first silicon steel sheet 510 and the second silicon steel sheet 520 are sleeved on the corresponding cylinder 431, by making the three positioning rods 432 protrude from the cylinder 431 and abut against the inner wall of the positioning holes, the first silicon steel sheet 510 and the second silicon steel sheet 520 can be pushed to complete the precise positioning of the first silicon steel sheet 510 and the second silicon steel sheet 520. That is, after the first silicon steel sheet 510 or the second silicon steel sheet 520 falls from the cylinder 431, even if the first silicon steel sheet 510 and the second silicon steel sheet 520 are tilted, by making the positioning rods 432 protrude outward, the two positioning holes on the first silicon steel sheet or the second silicon steel sheet 520 are precisely positioned, so that the first silicon steel sheet 510 and the second silicon steel sheet 520 can be straightened.

[0065] In this embodiment, reference Figure 8As shown, process plates 4321 are fixed on the upper and lower ends of each positioning rod 432, and process holes are respectively opened on the process plates 4321 at both ends; corresponding to the process holes of each positioning rod 432, process rods are respectively provided on the inner wall of the cylinder 431, and the process holes are sleeved on the process holes. The elastic member is a spring sleeved on the process rod, and the spring abuts between the process plate 4321 and the inner wall of the cylinder 431. In this embodiment, by providing the above-mentioned spring, the positioning rod 432 can be pushed inward so that the positioning holes on the first silicon steel sheet 510 and the second silicon steel sheet 520 are sleeved on the cylinder 431. It should be noted that the spring is not shown in the drawings of this embodiment because it does not affect understanding.

[0066] refer to Figure 8 As shown, in this embodiment, along the axial direction of the positioning rod 432, a plurality of thrust grooves 402 are provided at intervals on the outer periphery of each positioning rod 432; the lower side surface of each thrust groove 402 is perpendicular to the axial direction of the positioning rod 432, and the upper side surface of each thrust groove 402 is an inclined surface inclined upward and outward.

[0067] In this embodiment, reference Figure 7 and Fig. 9 As shown, a slide plate 440 is provided on the base 420, and the slide plate 440 can move axially along the cylinder 431 on the base 420; each driving member 433 respectively includes a rod body fixed on the slide plate 440, and a push block 4331 that can be inserted into each thrust groove 402 in a one-to-one manner is provided on the outer periphery of the rod body, and the push block 4331 has an inclined surface abutting against the upper side surface of the thrust groove 402.

[0068] In this embodiment, by setting the above-mentioned positioning rod 432, slide plate 440 and driving member 433, the lifting and lowering of the slide plate 440 can drive all the driving members 433 to rise or fall as a whole, wherein, when the driving member 433 rises, it can push the positioning rod 432 to move outward; and when the driving member 433 descends, the positioning rod 432 is reset under the push of the corresponding spring.

[0069] In some embodiments, the actions of the driving members 433 may also be controlled separately and individually. However, compared with the solution of this embodiment, the solution of this embodiment is simpler and easier to implement.

[0070] In this embodiment, reference Figure 7 and Fig.10 As shown, an air path 403 which can communicate with an external air supply device is provided in the base 420 , and an air vent 404 which is connected with the air path 403 is provided on the cylinder 431 .

[0071] In this embodiment, by providing the above-mentioned gas path 403, the external gas supply device can supply gas into the cylinder 431 through the above-mentioned gas path 403, and the gas in the cylinder 431 can escape through the through hole 401 on the cylinder 431, which has a certain upward thrust on the first silicon steel sheet 510 to slow down the falling speed of the first silicon steel sheet 510. When the first grabbing unit 350 releases the first silicon steel sheet 510, the support plate 3522 can be moved down a certain distance before rotating. Since the falling speed of the first silicon steel sheet 510 is slowed down, it will not move down synchronously with the support plate 3522. Therefore, when the support plate 3522 rotates, it will not contact the lower surface of the first silicon steel sheet 510 at the bottom layer, and will not scratch the first silicon steel sheet 510.

[0072] Based on the above overall structure, the overall working process of the transformer core silicon steel sheet stacking device of this embodiment is as follows:

[0073] Fix the bottom bracket 420 for stacking the cores on the base 410, connect the air path 403 on the bottom bracket 420 to the external air supply device, and the telescopic rod of the cylinder on the base 410 supports the slide plate 440 on the bottom bracket 420;

[0074] The staff alternately places the first silicon steel sheets 510 and the second silicon steel sheets 520 on the first loading platform 100 and the second loading platform 200;

[0075] The main arm 330 rotates to make the first arm 341 move to the top of the first loading platform 100 to grab the first silicon steel sheets 510 on the first loading platform 100; the second arm 342 moves to the top of the bottom support 420 at this time, and the second grabbing unit 360 releases the grabbed second silicon steel sheets 520;

[0076] After the first grabbing unit 350 completes grabbing of each first silicon steel sheet 510 and the second grabbing unit 360 releases the grabbed second silicon steel sheet 520; the main arm 330 rotates 90°, at this time, the first grabbing unit 350 rotates to the top of the base 420 and releases the grabbed first silicon steel sheets 510; the second grabbing unit 360 rotates to the top of the second supporting platform 200 to grab each second silicon steel sheet 520 on the second supporting platform 200; this cycle is repeated in sequence to complete the stacking of the iron core.

[0077] When the first grabbing unit 350 is located above the first carrying platform 100, the process of grabbing each first silicon steel sheet 510 is as follows:

[0078] The lifting seat 352 moves downward, driving the support plate 3522 to descend from the avoidance section 1021 into the avoidance cavity 103;

[0079] The main arm 330 drives the fixing seat 351 to move downward, so that the pressing plate 3512 contacts the first silicon steel sheet 510 on the top layer;

[0080] The rotating shaft 3521 rotates to rotate the support plate 3522 to the bottom of the working section 2022;

[0081] The lifting seat 352 moves upward until the support plate 3522 and the pressing plate 3512 clamp each first silicon steel sheet 510;

[0082] Thereafter, the main arm 330 drives the first grabbing unit 350 to move upward as a whole, and completes the grabbing of each first silicon steel sheet 510 .

[0083] When the first grabbing unit 350 rotates to the top of the bottom bracket 420, the process of releasing each first silicon steel sheet 510 is as follows:

[0084] The first grabbing unit 350 moves downward as a whole, so that the positioning holes of each first silicon steel sheet 510 are sleeved on the corresponding cylinder 431;

[0085] The external air supply device inflates air into the air path 403, the lifting seat 352 moves downward and the rotating shaft 3521 rotates, the supporting plate 3522 is separated from the first silicon steel sheet 510, and the inflation stops;

[0086] After each first silicon steel sheet 510 falls into place, the cylinder pushes the slide plate 440 upward for a certain distance, and the positioning rod 432 in each cylinder 431 moves outward to abut against the inner wall of the positioning hole, thereby completing the precise positioning of each first silicon steel sheet 510.

[0087] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A transformer core silicon steel sheet stacking device, characterized in that: include: A first bearing platform (100) and a second bearing platform (200), wherein the first bearing platform (100) is used to bear parallel first silicon steel sheets (510), and the second bearing platform (200) is used to bear parallel second silicon steel sheets (520); A lamination mechanism (300) comprises a base (310), a mounting seat (320) which is liftable and arranged on the base (310), and a main arm (330) which is rotatable and arranged on the mounting seat (320), wherein the main arm (330) is provided with a first support arm (341) and a second support arm (342) which are perpendicular to each other, and a first grasping unit (350) and a second grasping unit (360) are respectively provided on the free ends of the first support arm (341) and the second support arm (342); The stacking platform (400) comprises a base (410) and a bottom bracket (420) disposed on the base (410); two positioning members (430) are respectively disposed on the bottom bracket (420) corresponding to each of the first silicon steel sheets (510) and the second silicon steel sheets (520); the positioning members (430) comprise a cylinder (431) fixedly disposed on the bottom bracket (420), a driving member (433) and three positioning rods ( 432), and through holes (401) are provided on the cylinder (431) corresponding to the three positioning rods (432), and elastic members are respectively provided between the three positioning rods (432) and the inner wall of the cylinder (431), so that the three positioning rods (432) can be pushed by the elastic members to be retracted into the cylinder (431), and can be pushed by the driving member (433) to protrude from the outer periphery of the cylinder (431) through the through holes (401); The first grabbing unit (350) is capable of switching between a first position above the first silicon steel sheet (510) and a second position above the base (420), and the second grabbing unit (360) is correspondingly capable of switching between a third position above the base (420) and a fourth position above the second silicon steel sheet (520); The first silicon steel sheet (510) and the second silicon steel sheet (520) can be grasped by the first grasping unit (350) and the second grasping unit (360) respectively, and released above the base (420); the positioning holes on the first silicon steel sheet (510) and the second silicon steel sheet (520) can be sleeved on the corresponding positioning members (430) and slide onto the base (420); and the driving member (433) can drive each positioning rod (432) to protrude from the cylinder (431) to form a positioning for each of the first silicon steel sheets (510) and each of the second silicon steel sheets (520); A process plate (4321) is fixedly provided on the upper and lower ends of each positioning rod (432), and process holes are respectively opened on the process plates (4321) at both ends; a process rod is respectively provided on the inner wall of the cylinder (431) corresponding to the process hole of each positioning rod (432), and the process hole is sleeved on the process hole; the elastic member is a spring sleeved on the process rod, and the spring abuts between the process plate (4321) and the inner wall of the cylinder (431); Along the axial direction of the positioning rod (432), a plurality of thrust bearing grooves (402) are provided at intervals on the outer circumference of each positioning rod (432); the lower side surface of each thrust bearing groove (402) is perpendicular to the axial direction of the positioning rod (432), and the upper side surface of each thrust bearing groove (402) is an inclined surface extending upward and outward; A slide plate (440) is provided on the base support (420), and the slide plate (440) can move on the base support (420) along the axial direction of the cylinder (431); each of the driving members (433) includes a rod body fixed on the slide plate (440), and a push block (4331) is provided on the outer periphery of the rod body, which can be inserted into each of the thrust grooves (402) in a one-to-one manner, and the push block (4331) has an inclined surface abutting against the upper side surface of the thrust groove (402).

2. The transformer core silicon steel sheet stacking device according to claim 1, characterized in that: The first bearing platform (100) is provided with a plurality of first bearing grooves (101), each of the first bearing grooves (101) being used to bear a corresponding first silicon steel sheet (510); a group of process grooves (102) corresponding to each of the first bearing grooves (101) is provided on the first bearing platform (100), each of the group of process grooves (102) comprising a plurality of process grooves (102) arranged at intervals along the length direction of the first bearing groove (101), each of the process grooves (102) The first support platform (100) comprises an avoidance section (1021) and a working section (2022), wherein the avoidance section (1021) is parallel to the first bearing groove (101) and deeper than the first bearing groove (101), and the working section (2022) is perpendicular to and intersects with the avoidance section (1021), and intersects with the first bearing groove (101), and an avoidance cavity (103) intersecting with the bottom ends of the avoidance section (1021) and the working section (2022) is provided in the first bearing platform (100).

3. The transformer core silicon steel sheet stacking device according to claim 2, characterized in that: The first grabbing unit (350) comprises a fixed seat (351) fixed on the first support arm (341), and a lifting seat (352) which is liftable and arranged on the fixed seat (351); a material supporting piece corresponding to each of the process slots (102) is arranged on the lifting seat (352), and each of the material supporting pieces comprises a rotating shaft (3521) which is rotatable and arranged on the lifting seat (352), and a supporting plate (3522) which is fixed on the bottom end of the rotating shaft (3521); the supporting plate (3522) can penetrate into the avoidance cavity (103) through the avoidance section (1021), and rotate with the rotating shaft (3521); the supporting plate (3522) can rotate to be opposite to the working section (2022), and can lift the first silicon steel sheet (510) through the working section (2022).

4. The transformer core silicon steel sheet stacking device according to claim 3, characterized in that: The lifting seat (352) is located above the fixed seat (351); the bottom surface of the fixed seat (351) is provided with guide cylinders (3511) for the rotating shafts (3521) to pass through one by one, and a pressure plate (3512) is fixed on the outer periphery of each guide cylinder (3511), and when the supporting plate (3522) lifts the first silicon steel sheet (510), the pressure plate (3512) can clamp the first silicon steel sheet (510) with the supporting plate (3522).

5. The transformer core silicon steel sheet stacking device according to claim 3, characterized in that: A first gear (3523) is fixedly sleeved on one end of each rotating shaft (3521) located in the lifting seat (352); an electric telescopic rod (3524) is provided on the lifting seat (352), a connecting plate (3525) is fixedly provided on the telescopic end of the electric telescopic rod (3524), and a plurality of racks (3526) perpendicular to the connecting plate (3525) are fixedly provided on the connecting plate (3525), which mesh with the first gear (3523) and the same rack (3526) on each rotating shaft (3521) corresponding to the same group of process slots (102).

6. The transformer core silicon steel sheet stacking device according to any one of claims 1 to 5, characterized in that: An air path (403) communicating with an external air supply device is provided in the base (420), and a vent hole (404) communicating with the air path (403) is provided on each of the cylinders (431).

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