Laser depainting device for duplex winding coil of transformer

Abstract

The invention provides a transformer duplex winding coil laser depainting device, and relates to the technical field of laser depainting, and the transformer duplex winding coil laser depainting device comprises a circulation turnover assembly which comprises a circulation track and a hanging bracket; the upper protection assembly comprises a square cover, the bottom of the square cover is of an opening structure, an air inlet is formed in the middle of the front side face of the square cover, and an exhaust pipe is arranged in the middle of the back face. The exhaust pipe is rotationally installed in the hanging plate, and a middle notch is formed in the top face of the square cover. A second lifting and transferring component is used for lifting the material carrying plate to be in butt joint with the square cover, and a first lifting and transferring component is used for taking down the material carrying plate subjected to paint removal; a posture adjusting assembly; an air suction assembly; a laser elimination assembly; the power-on detection assembly is installed in the detection area and used for conducting single-winding detection and double-winding detection on the double-winding coil. According to the invention, automatic laser paint removal of the double-winding coil can be realized, and the paint removal operation coverage is comprehensive.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of laser paint removal, in particular to a transformer double-winding coil laser paint removal device. BACKGROUND

[0002] As a kind of body structure component, double-winding coil is widely used in electrical equipment such as transformer due to its core advantage of high stability, and is a key component to ensure stable operation of equipment. Its structural characteristics are clear: a flat conductor is spirally wound from top to bottom to form a first winding, and then extended to one side through an inclined transition section, and then spirally wound from bottom to top to form a second winding. The end of the first winding forms a first pin, and the end of the second winding forms a second pin. The two pins are on the same horizontal plane, and the inner sides are relatively close. In the production of double-winding coil, pin paint removal and parameter detection are two key links. The pin paint removal needs to ensure that all four sides are exposed to ensure the continuity of the subsequent wiring. However, the existing related process has the following defects: 1. Currently, pin paint removal is mostly completed by manual operation. The operator needs to take double-winding coils one by one, adjust the four sides of the first pin to the laser probe one by one to complete paint removal, and then repeat the operation for the second pin. This process not only has high labor intensity and low processing efficiency, but also easily damages the structural stability of the coil due to multiple adjustments of the coil posture, especially the inclined transition section, which has a risk of obvious deformation due to stress or posture change, affecting the overall performance of the coil. 2. Since the first pin and the second pin are on the same horizontal plane and the inner sides are relatively close, the laser of the existing laser paint removal equipment is output from top to bottom. Due to the limitation of pin spacing and output direction, the laser is difficult to directly irradiate the inner side of the pin. 3. The existing factory detection only measures the overall parameters of the double-winding coil through the two pins, which cannot accurately obtain the independent parameters of a single winding, and cannot guarantee the consistency of the performance of the first winding and the second winding in the products. SUMMARY

[0003] In view of the deficiencies of the prior art, the present application provides a transformer double-winding coil laser paint removal device to solve the problems mentioned in the background art.

[0004] To achieve the above purpose, the present application realizes the following technical scheme: A transformer double-winding coil laser paint removal device, comprising a circulation turnover assembly, including a circulation track and a hanger. One side of the circulation track is sequentially provided with a front laser area, a right side laser area, a left side laser area and a back laser area along the conveying direction. The other side of the circulation track is sequentially provided with a detection area, a discharge area and a feeding area along the conveying direction. The circulation track is provided with a ring array of hangers at the bottom. The inside bottom of the hanger is provided with a hanger plate. The upper protecting assembly comprises a square cover, the bottom of the square cover is an open structure, an air inlet hole is formed in the middle of the front side of the square cover, and an exhaust pipe is formed in the middle of the back side of the square cover; the exhaust pipe is rotatably installed in a hanging plate, and a middle notch is formed in the top surface of the square cover; The upper unloading assembly comprises a first lifting and transferring component and a second lifting and transferring component, the first lifting and transferring component is installed in an unloading area, a unloading conveying belt and a waste temporary storage table are installed on one side of the unloading area, the second lifting and transferring component is installed in a loading area, a loading conveying belt is installed on one side of the loading area, and the second lifting and transferring component is used to lift the loading plate to be connected with the square cover, and the first lifting and transferring component is used to take down the loading plate after paint removal. The surface of the loading plate stores a group of double-winding coils, the surface of the loading plate is symmetrically provided with inner support columns, the first winding and the second winding of the double-winding coils are respectively sleeved on the two inner support columns, the first winding and the second winding are connected through an inclined transition section, the bottom of the square cover is provided with a first groove and a second groove, when the square cover is connected with the loading plate, the first pin of the first winding penetrates through the first groove, the second pin of the second winding penetrates through the second groove, and the middle notch is arranged opposite to the middle part of the inclined transition section. The posture adjusting assembly is installed at the back of the front laser area, the right side laser area, the left side laser area and the back laser area, and is used to drive the exhaust pipe to rotate to adjust the paint removal angle of the square cover. The air suction assembly is installed at the top of the posture adjusting assembly and is connected with the exhaust pipe to change the square cover into a flue gas outlet channel.

[0005] The present application provides a transformer double-winding coil laser paint removal device. 1. When the square cover is in the unloading position and the loading position, the lifting and transferring component can push the loading plate to be lifted, so that the loading plate is lifted to be connected with the square cover, thus the square cover can be connected with the loading plate as a whole, and the automatic loading and unloading of the double-winding coil is realized. 2. The posture adjusting assembly can adjust the position of the square cover, and then drive the double-winding coil to change the posture, the double-winding coil is sequentially in the front upward, the right side upward, the left side upward and the back upward, when the first pin and the second pin are inclined and staggered, the two left sides or the two right sides can be upward, so that the pin side can be in contact with the light of the laser probe, and the side laser paint removal is realized; thus, the comprehensive paint removal is realized without omission and dead angle, and the paint removal process and the overturning process are continuously carried out, and the paint removal effect is high. BRIEF DESCRIPTION OF DRAWINGS

[0006] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative effort based on these drawings.

[0007] Figure 1 The overall structure of the present application is shown in the schematic diagram; Figure 2 The top view structure of the present application is shown in the schematic diagram of the carrier plate and the double-winding coil; Figure 3 The schematic diagram of the moving plate of the detection piece is shown in the structure of the moving plate in the retracted state; Figure 4 The schematic diagram of the moving plate of the detection piece is shown in the structure of the moving plate in the extended state; Figure 5 The schematic diagram of the detection piece structure is shown in the schematic diagram of the detection piece structure; Figure 6 The schematic diagram of the cycle turnover assembly structure is shown in the schematic diagram of the cycle turnover assembly structure; Figure 7 The schematic diagram of the square cover and the carrier plate is shown in the schematic diagram of the square cover and the carrier plate; Figure 8 The schematic diagram of the hanger back structure is shown in the schematic diagram of the hanger back structure; Figure 9 The schematic diagram of the air suction assembly structure is shown in the schematic diagram of the air suction assembly structure; Figure 10 The schematic diagram of the first laser component structure is shown in the schematic diagram of the first laser component structure; Figure 11 The schematic diagram of the second laser component structure is shown in the schematic diagram of the second laser component structure; Figure 12 The schematic diagram of the power-on detection assembly structure is shown in the schematic diagram of the power-on detection assembly structure; Figure 13 The schematic diagram of the first probe, the second probe and the third probe structure is shown in the schematic diagram of the first probe, the second probe and the third probe structure; Figure 14 The schematic diagram of the first lifting and transferring component structure is shown in the schematic diagram of the first lifting and transferring component structure; Figure 15 The schematic diagram of the Figure 14 The schematic diagram of the enlarged structure of A is shown in the schematic diagram of the enlarged structure of A; The schematic diagram of the enlarged structure of A is shown in the schematic diagram of the enlarged structure of A; 100, cycle turnover assembly, 110, cycle track, 120, hanger, 130, hanger plate, 131, elastic clamping tooth, 140, attitude adjusting assembly, 141, horizontal rod body, 142, first rack, 143, second rack, 144, third rack, 145, fourth rack, 150, abutting plate, 200, laser elimination assembly, 210, positioning plate, 220, first laser component, 221, telescopic rod, 222, first driving rod, 223, first guide rail, 224, first laser head, 230, second laser component, 231, support rod, 232, second guide rail, 233, second laser head, 240, third laser component, 250, fourth laser component, 300, upper protection assembly, 310, square cover, 311, first groove, 312, second groove, 313, assembly groove, 314, second magnetic block, 320, air inlet hole, 330, middle notch, 340, exhaust pipe, 341, driven tooth ring, 400, air suction assembly, 410, air suction main pipe, 420, air suction branch pipe, 430, flue gas treatment main machine, 500, power-on detection assembly, 510, main machine box, 520, test main machine, 530, mounting cover, 540, feeding rod, 550, feeding plate, 551, first probe, 552, second probe, 553, third probe, 600, upper unloading assembly, 610, first lifting transfer component, 611, base, 612, second driving rod, 613, supporting plate, 614, enclosing frame, 615, through hole, 616, third driving rod, 617, stripping block, 620, second lifting transfer component, 630, unloading conveyor belt, 640, waste temporary storage platform, 650, feeding conveyor belt, 700, material carrying plate, 710, inner support column, 720, first magnetic block, 730, stripping groove, 800, double-winding coil, 810, first winding, 811, first pin, 820, second winding, 821, second pin, 830, oblique transition section, 831, detection contact area, 900, detection piece, 910, circular cover body, 911, rectangular groove, 912, circular groove, 920, circular seat body, 921, storage chute, 922, second notch, 930, moving plate, 931, elastic contact piece, 932, isolation block, 933, stop block, 934, inner conductor, 955, detection piece, 940, locking screw. DETAILED DESCRIPTION

[0008] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0009] Combination Figures 1-15As shown, the laser paint removal device for double-winding coils of a transformer provided by the present application comprises a circulating turnover assembly 100, which comprises a circulating track 110 and a hanger 120. One side of the circulating track 110 is sequentially provided with a front laser area, a right side laser area, a left side laser area and a back laser area along a conveying direction. The other side of the circulating track 110 is sequentially provided with a detection area, a discharging area and a feeding area along the conveying direction. The bottom of the circulating track 110 is provided with the hanger 120 arranged in an annular array. The inner bottom of the hanger 120 is provided with a hanger plate 130. The upper protection assembly 300 comprises a square cover 310. The bottom of the square cover 310 is of an open structure. The front side of the square cover 310 is provided with an air inlet hole 320 in the middle, and the back side of the square cover 310 is provided with an exhaust pipe 340 in the middle. The exhaust pipe 340 is rotatably installed in the hanger plate 130. The top of the square cover 310 is provided with a middle notch 330. The upper discharging assembly 600 comprises a first lifting transfer component 610 and a second lifting transfer component 620. The first lifting transfer component 610 is installed in the discharging area. The discharging area is provided with a discharging conveying belt and a waste temporary storage table 640 on one side. The second lifting transfer component 620 is installed in the feeding area. The feeding area is provided with a feeding conveying belt 650 on one side. The second lifting transfer component 620 is used to lift the load plate 700 to be connected to the square cover 310. The first lifting transfer component 610 is used to take down the load plate 700 after paint removal. The surface of the load plate 700 stores a group of double-winding coils 800. The surface of the load plate 700 is symmetrically provided with inner support columns 710. The first winding 810 and the second winding 820 of the double-winding coil 800 are respectively sleeved on the two inner support columns 710. The first winding 810 and the second winding 820 are connected through a diagonal transition section 830. The bottom of the square cover 310 is provided with a first recess 311 and a second recess 312. When the square cover 310 is connected to the load plate 700, the first pin 811 of the first winding 810 penetrates through the first recess 311, and the second pin 821 of the second winding 820 penetrates through the second recess 312. The middle notch 330 is oppositely arranged with the middle part of the diagonal transition section 830. The posture adjusting assembly 140 is installed on the back of the front laser area, the right side laser area, the left side laser area and the back laser area. The posture adjusting assembly 140 is used to drive the exhaust pipe 340 to rotate to adjust the paint removal angle of the square cover 310. The air suction assembly 400 is installed on the top of the posture adjusting assembly 140. The air suction assembly 400 is connected to the exhaust pipe 340 to change the square cover 310 into a flue gas outlet channel. The laser elimination assembly 200 comprises a positioning plate 210. The side of the positioning plate 210 is provided with a first laser component 220, a second laser component 230, a third laser component 240 and a fourth laser component 250. When the square cover 310 passes through the front laser area, the first lead 811 and the second lead 821 are adjusted to be horizontally arranged, the first laser component 220 laser-eliminates the front paint layer of the first lead 811 and the second lead 821, and laser-eliminates the front paint layer of the oblique transition section 830 through the middle notch 330 to form a detection contact area 831, which is used as a single-winding detection and detection position of the detection piece 900; When the square cover 310 passes through the right side laser area, the first lead 811 and the second lead 821 are adjusted to be obliquely staggered, and the second laser component 230 laser-eliminates the right side paint layer of the first lead 811 and the second lead 821; When the square cover 310 passes through the right side laser area, the first lead 811 and the second lead 821 are adjusted to be obliquely staggered, and the third laser component 240 laser-eliminates the left side paint layer of the first lead 811 and the second lead 821.

[0010] When the square cover 310 passes through the right side laser area, the first lead 811 and the second lead 821 are adjusted to be horizontally arranged, and the fourth laser component 250 laser-eliminates the back paint layer of the first lead 811 and the second lead 821; The energized detection assembly 500 is installed in the detection area, and the energized detection assembly 500 is used for single-winding detection and double-winding detection of the double-winding coil 800.

[0011] In the above scheme: 1. The double-winding coil 800 is placed on the material carrying plate 700 after being processed, and the material carrying plate 700 is used as an automatic turnover carrier of the double-winding coil 800; 2. The square cover 310 has the following effects: 2.1. When the square cover 310 is at the unloading position and the loading position, the lifting and transferring component can push the material carrying plate 700 to be lifted, so that the material carrying plate 700 is lifted and is in butt joint with the square cover 310. In this way, the square cover 310 can be in butt joint with the material carrying plate 700 as a whole, so that the automatic loading and unloading of the double-winding coil 800 is realized. When the square cover 310 is in butt joint with the material carrying plate 700, it can be used as a turnover and shaping structure of the double-winding coil 800, so as to drive the double-winding coil 800 to stably pass through each processing station, thereby avoiding deformation of the double-winding coil 800. Meanwhile, the first lead 811 and the second lead 821 are arranged to be outwardly extended, and the square cover 310 and the material carrying plate 700 can form a shielding structure, so as to avoid laser from reaching other areas and ensure the pertinence of laser paint removal; 2.2. The circulation turnover assembly 100 drives the square cover 310 to pass through the front laser area, the right side laser area, the left side laser area and the back laser area in sequence. When the square cover 310 moves, the material carrying plate 700 and the double-winding coil 800 follow the movement. In this way, the double-winding coil 800 can automatically circulate at each paint removal station without manual taking, so as to meet the needs of automatic continuous production; 2.3, the posture adjusting assembly 140 can adjust the position of the square cover 310, thereby driving the double-winding coil 800 to change the posture, and the double-winding coil 800 is in turn in the front face upward, the right side face upward, the left side face upward and the back face upward, when the first pin 811 and the second pin 821 are inclined and staggered, two left side faces or two right side faces can be formed, so that the pin side face can be in contact with the light of the laser probe, and side face laser paint removal is realized; in this way, full paint removal is realized without missing dead angles, and the paint removal process and the overturning process are continuously carried out, and the paint removal effect is high; 3, the air suction assembly 400 can be in contact with the passing exhaust pipe 340, so that the air suction assembly 400 can adsorb the smoke generated in the four laser paint removal positions, the smoke is output through the air inlet hole, the square cover 310 and the exhaust pipe 340, synchronous adsorption treatment of the smoke is realized, and the air guide structure is integrated in the square cover 310, so that a separate smoke suction structure is not needed, the structure is simple, and the smooth translation of the square cover 310 is not affected.

[0012] 4, in order to solve the problem that the traditional double-winding coil 800 can only be detected by double-winding, a middle notch 330 is reserved on the square cover 310, so that the first laser component 220 can remove paint from the oblique transition section 830 through the middle notch 330 after removing paint from the front of the first pin 811 and the second pin 821, and a detection contact area 831 is obtained, so that the detection contact area 831 is quickly formed, and a separate processing station is not needed; After the detection contact area 831 is processed, the detection contact area 831 can be used as a power-on contact structure of a subsequent power-on detection assembly 500, and the power-on detection assembly 500 can complete single-winding and double-winding detection synchronously by alternately powering three groups of probes, so that detection is comprehensive and accurate; The detection contact area 831 can also be used as a mounting position of a detection piece 900, the detection piece 900 can be used as an insulation protection structure of the detection contact area 831 during the use stage of the double-winding coil 800, so as to ensure stable work of the oblique transition section 830, and the detection piece 900 can be used to detect the working parameters of the single-winding during the operation and maintenance stage, so as to accurately judge whether the first winding 810 and the second winding 820 are qualified.

[0013] In the embodiment, the surface of the carrier plate 700 is symmetrically provided with a first magnetic suction block 720, the bottom surface of the square cover 310 is symmetrically provided with a mounting groove 313, the inside of the mounting groove 313 is embedded with a second magnetic suction block 314, and the second magnetic suction block 314 is matched with the first magnetic suction block 720 for adsorption; the two ends of the carrier plate 700 are symmetrically provided with a stripping groove 730.

[0014] In the above scheme, the first magnetic suction block 720 of the carrier plate 700 is matched with the second magnetic suction block 314 of the square cover 310 for adsorption, so that the two are quickly and accurately positioned, there is no relative displacement during the paint removal process, and the accuracy of laser paint removal is ensured; the stripping grooves 730 at the two ends of the carrier plate 700 provide stress points for subsequent unloading separation.

[0015] In the embodiment, the first lifting transfer component 610 and the second lifting transfer component 620 adopt the same structure, the first lifting transfer component 610 comprises a base 611, the surface of the base 611 is vertically symmetrical with a second driving rod 612, the top end of the second driving rod 612 is provided with a supporting plate 613, the surface of the supporting plate 613 is provided with a U-shaped surrounding frame 614, the both sides of the surrounding frame 614 are symmetrically provided with perforations 615, each group of the perforations 615 is internally mounted with a third driving rod 616, the output end of the third driving rod 616 is connected with a stripping block 617, and the stripping block 617 is inserted into a stripping groove 730.

[0016] In the above scheme, the U-shaped surrounding frame 614 on the surface of the supporting plate 613 restrains the load plate 700 from three sides to avoid dumping or deviation during the loading and unloading process; the second driving rod 612 precisely adjusts the height of the supporting plate 613 to ensure that the load plate 700 is precisely connected with the square cover 310, thereby improving the success rate of loading and unloading. The third driving rod 616 drives the stripping block 617 to be inserted into the stripping groove 730 of the load plate 700, the second driving rod 612 can drive the supporting plate 613 to be lowered, the first magnetic block 720 and the second magnetic block 314 can be quickly separated, and then the load plate 700 and the square cover 310 are separated, without manual intervention, thereby improving the unloading efficiency.

[0017] In the embodiment, the inner end of the exhaust pipe 340 is mounted with a driven gear ring 341, the back top of the hanging plate 130 is mounted with an elastic clamping tooth 131, the elastic clamping tooth 131 is elastically engaged with the top of the driven gear ring 341; the posture adjusting assembly 140 comprises a cross rod body 141, the top of the cross rod body 141 is provided with a first gear rack 142, a second gear rack 143, a third gear rack 144 and a fourth gear rack 145 which are in contact and engagement with the driven gear ring 341, the first gear rack 142 is arranged between the front laser area and the right side laser area, the second gear rack 143 is arranged between the right side laser area and the left side laser area, the third gear rack 144 is arranged between the left side laser area and the back laser area, and the fourth gear rack 145 is arranged outside the back laser area; the first gear rack 142 and the third gear rack 144 are used to drive the square cover 310 to rotate by 45°, the second gear rack 143 is used to drive the square cover 310 to rotate by 90°, and the fourth gear rack 145 is used to drive the square cover 310 to rotate by 180°. The top of each of the first gear rack 142, the second gear rack 143, the third gear rack 144 and the fourth gear rack 145 is provided with an equal-length abutting plate 150, the both ends of the abutting plate 150 are chamfered structures, and the abutting plate 150 is used to drive the elastic clamping tooth 131 to be lifted up to unlock the driven gear ring 341.

[0018] In the above scheme: when the square cover 310 moves, the driven gear ring 341 meshes with different racks, and the different racks can drive the square cover 310 to rotate by 45°, 90° or 180°, which accurately adapts to the paint removal requirements of each laser area; the abutment plate 150 unlocks the elastic clutches 131, and after the posture is adjusted, the elastic clutches 131 are automatically meshed and positioned to avoid vibration deviation. The racks and the abutment plate 150 are arranged along the circulating track 110, and multiple square covers 310 can complete posture switching synchronously with the circulating assembly 100, without the need for separate control, which adapts to the continuous paint removal process and greatly improves production efficiency.

[0019] In the embodiment, the air suction assembly 400 includes an air suction main pipe 410, four groups of air suction branch pipes 420 are connected in parallel to the air suction main pipe 410, and an output end of the air suction main pipe 410 is connected to a flue gas treatment main machine 430. The exhaust pipe 340 is in abutment alignment and communication with the air suction pipe.

[0020] In the above scheme: the air suction main pipe 410 is connected in parallel to the four groups of air suction branch pipes 420, and respectively connects to the exhaust pipes 340 of each laser area, which can synchronously collect flue gas of all paint removal areas and avoid scattered pollution; the flue gas is transported to the flue gas treatment main machine 430 through the air suction main pipe 410, and the treatment is complete and meets the environmental protection standard. The exhaust pipe 340 is in abutment alignment with the air suction branch pipe 420 to form a sealed flue gas suction channel, reducing flue gas leakage; the structure is integrated on the side of the circulating assembly 100, without occupying additional space, which adapts to the space layout of continuous production and does not affect the normal translation of the exhaust pipe 340.

[0021] In the embodiment, the first laser component 220 includes a first driving rod 222, a telescopic rod 221 and a first guide rail 223, the back surface of the first guide rail 223 is symmetrically provided with the telescopic rod 221, the middle part of the back surface of the first guide rail 223 is provided with the first driving rod 222, the first driving rod 222 and the two groups of telescopic rods 221 are fixedly arranged on the positioning plate 210, and the side surface of the first guide rail 223 is slidably provided with a first laser head 224; the second laser component 230, the third laser component 240 and the fourth laser component 250 adopt the same structure, the second laser component 230 includes a support rod 231 and a second guide rail 232, the back surface of the second guide rail 232 is symmetrically provided with the support rod 231, the support rod 231 is fixedly arranged on the positioning plate 210, and the side surface of the second guide rail 232 is slidably provided with a second laser head 233.

[0022] In the above scheme: the first laser head 224 can slide along the first guide rail 223, the first driving rod 222 and the telescopic rod 221 adjust the front and back positions of the first guide rail 223, which can simultaneously adapt to the laser processing needs of the first pin 811, the second pin 821 and the oblique transition section 830.

[0023] In the embodiment, the power-on detection assembly 500 comprises a main box 510, a test host 520 is arranged on the side of the main box 510, a mounting cover 530 is arranged on one side of the top of the main box 510, a feeding rod 540 is arranged on the inner top of the mounting cover 530, a feeding plate 550 is arranged at the bottom end of the feeding rod 540, a first probe 551, a second probe 552 and a third probe 553 are arranged in a triangular distribution on the bottom surface of the feeding plate 550, and the first probe 551, the second probe 552 and the third probe 553 are electrically connected to the test host 520; when the square cover 310 and the material loading plate 700 pass through the power-on detection assembly 500, the first probe 551 is located above the first pin 811, the second probe 552 is located directly above the second pin 821, and the third probe 553 is located above the detection contact area 831; the first probe 551 and the second probe 552 are used to cooperate to detect the performance parameters of the double-winding coil 800, the first probe 551 and the third probe 553 are used to cooperate to detect the performance parameters of the first winding 810, and the third probe 553 and the second probe 552 are used to cooperate to detect the performance parameters of the second winding 820.

[0024] In the above scheme, the three groups of probes arranged in a triangular distribution are connected to the first pin 811, the second pin 821 and the detection contact area 831 respectively, and the single-winding and double-winding detection can be completed synchronously by alternating power-on of the test host 520, without the need for separate operation, and the process is simplified. The feeding rod 540 drives the feeding plate 550 to accurately descend, so as to ensure that the probes are accurately attached to the paint stripping contact area, and the detection result is accurate.

[0025] In the embodiment, the detection piece 900 comprises a circular cover body 910 and a circular seat body 920, the circular seat body 920 is internally provided with a rectangular groove 911 and a circular groove 912, the rectangular groove 911 is communicated with the inner end of the circular groove 912, the inclined transition section 830 is embedded in the rectangular groove 911, the circular seat body 920 is embedded in the circular groove 912, and the circular seat body 920 is connected to the circular seat through a locking screw 940.

[0026] In the above scheme, the circular cover body 910 and the circular seat body 920 cooperate to form a closed structure, which wraps the detection contact area 831, avoids oxidation and dust contamination, and guarantees the subsequent detection accuracy; the closed structure has insulation performance, prevents short circuit risk, and protects the coil safety. The inclined transition section 830 is embedded in the rectangular groove 911, and the circular seat body 920 is clamped into the circular groove 912 and then fixed through the locking screw 940, so that the installation is convenient; the detection piece 900 has a compact structure and does not affect the normal assembly of the double-winding coil 800, and meets the installation requirements of the transformer.

[0027] In the embodiment, the side wall of the circular cover body 910 is provided with a first hole, the inside of the circular seat body 920 is provided with a storage sliding groove 921, a moving plate 930 is slidingly installed in the inside of the storage sliding groove, the surface inner end of the moving plate 930 is provided with an elastic contact piece 931, the surface outer end of the moving plate 930 is provided with a detection piece 955, the detection piece 955 is located outside the circular cover body 910, the detection piece 955 is connected with the elastic contact piece 931 through an inner conductor 934, and the middle part of the circular seat body 920 is provided with a second hole at a position opposite to the detection contact area 831.

[0028] In the above scheme, the outer pulling moving plate 930 can drive the elastic contact piece 931 to pass through the second hole and accurately dock with the detection contact area 831, and an external measuring instrument can complete detection through the detection piece 955 without disassembling the protection structure, so that the operation and maintenance efficiency is greatly improved. The elastic contact piece 931 is elastic and can closely contact the detection contact area 831, so as to avoid detection deviation caused by poor contact; the detection piece 955 is exposed outside the circular cover body 910, so that the measuring instrument is convenient to dock, the operation and maintenance convenience is further improved, and single-winding detection is realized.

[0029] In the embodiment, the surface of the moving plate 930 is provided with an isolation block 932, the isolation block 932 is located on the side of the elastic contact piece 931 close to the first hole, the isolation block 932 cooperates with the second hole 922 to block, and the outer end of the moving plate 930 is provided with a stop block 933, and the stop block 933 is stopped outside the first hole.

[0030] In the above scheme, under normal circumstances, the isolation block 932 blocks the second hole, which not only prevents the elastic contact piece 931 from accidentally touching the detection contact area 831, but also blocks dust from entering, so as to protect the cleanliness of the detection contact area 831 and the normal work of the coil. The stop block 933 is stopped outside the first hole, which limits the maximum sliding stroke of the moving plate 930, avoids damage of the elastic contact piece 931 caused by excessive displacement, and at the same time ensures that the elastic contact piece 931 accurately docks with the detection contact area 831 during operation and maintenance, so as to improve the detection stability.

[0031] Working principle and use process of the application: S1, double-winding coil 800 feeding: The double-winding coil 800 processed is sleeved on the two inner support columns 710 of the loading plate 700, the oblique transition section 830 is arranged on the top, and the first pin 811 and the second pin 821 are attached to the surface of the loading plate 700; Then the loading plate 700 is arranged on the feeding conveying belt 650, and the feeding conveying belt 650 conveys the loading plate 700 to the feeding area; The worker transfers the loading plate 700 to the supporting plate 613, and the surrounding frame 614 surrounds the loading plate 700 from three sides; When the circulation track 110 drives the hanger 120, the hanging plate 130 and the square cover 310 to move to the feeding area, the second driving rod 612 drives the supporting plate 613 to move upward, so that the double-winding coil 800 is lifted by the loading plate 700, and when the loading plate 700 is lifted to the top end, the loading plate 700 is attached to the bottom of the square cover 310, the first magnetic block 720 is embedded in the assembly groove 313 and is adsorbed with the second magnetic block 314, so that the loading plate 700 can be connected to the bottom of the square cover 310, the first pin 811 is clamped into the first groove 311, the second pin 821 is clamped into the second groove 312, and the middle notch 330 is aligned with the middle part of the oblique transition section 830; Then, the supporting plate 613 is lowered, and the next feeding is waited; S2, one-time laser paint stripping; The square cover 310 moves horizontally to the front laser area, the first pin 811 and the front of the first pin 811 are upward, and the first laser head 224 moves along the first guide rail 223, so that the first laser head 224 sequentially laser strips the surface insulating paint of the first pin 811 and the second pin 821; The first driving rod 222 drives the first guide rail 223 to extend outward, and the telescopic rod 221 follows the extension, the laser of the first laser head 224 passes through the middle notch 330 to laser strip the corresponding part of the oblique transition section 830, and a detection contact area 831 is obtained; the detection contact area 831 can be used as the docking position of the single-winding detection and detection piece 900; S2, two-time laser paint stripping; After the front paint stripping of the square cover 310 is completed, the elastic clamping teeth 131 are in contact with the first group of abutting plates 150, the elastic clamping teeth 131 are separated from the driven gear ring 341, the first gear rack 142 is in meshing contact with the driven gear ring 341, and as the square cover 310 advances, the first gear rack 142 drives the driven gear ring 341 to rotate, thereby driving the square cover 310 and the loading plate 700 to rotate by 45°, so that the first pin 811 and the second pin 821 can be rotated to the inclined and staggered state, and the right side surfaces of the first pin 811 and the second pin 821 are both upward; After the posture adjustment is completed, the driven gear ring 341 is separated from the first gear rack 142, and the elastic clamping teeth 131 are separated from the first group of abutting plates 150, so that the elastic clamping teeth 131 can be clamped and positioned on the driven gear ring 341, so that the square cover 310 and the loading plate 700 can maintain the posture; The square cover 310 moves horizontally to the right side laser area, the second laser head 233 moves along the second guide rail 232, so that the second laser head 233 sequentially laser strips the right side insulating paint of the first pin 811 and the second pin 821; S3, three-time laser paint stripping; The right side of the finished paint of the square cover 310 continues to advance, the elastic clamping teeth 131 contact the second set of resistance plates 150, the elastic clamping teeth 131 are separated from the driven gear ring 341, the second gear rack 143 is engaged with the driven gear ring 341, and the second gear rack 143 drives the driven gear ring 341 to rotate as the square cover 310 advances, thereby driving the square cover 310 and the carrier plate 700 to rotate by 90°, so that the first pin 811 and the second pin 821 can be rotated to another inclined staggered state, and the left side of the first pin 811 and the second pin 821 are both upward; The square cover 310 moves horizontally to the left side laser area, and the third laser component 240 laser peels the left side insulating paint of the first pin 811 and the second pin 821 in turn; S4, four times of laser paint stripping; The square cover 310 continues to advance after the left side paint stripping is finished, the elastic clamping teeth 131 contact the third set of resistance plates 150, the elastic clamping teeth 131 are separated from the driven gear ring 341, the third gear rack 144 is engaged with the driven gear ring 341, and the third gear rack 144 drives the driven gear ring 341 to rotate as the square cover 310 advances, thereby driving the square cover 310 and the carrier plate 700 to rotate by 45°, so that the first pin 811 and the second pin 821 can be rotated to a horizontal state and the back is upward, at this time, the carrier plate 700 is placed above the square cover 310; The square cover 310 moves horizontally to the back laser area, and the fourth laser component 250 laser peels the back insulating paint of the first pin 811 and the second pin 821 in turn; S5, double-winding coil 800 detection; The square cover 310 and the carrier plate 700 advance, the driven gear ring 341 is engaged with the fourth gear rack 145, thereby driving the square cover 310 and the carrier plate 700 to rotate by 180°, and returning to the initial horizontal state, and the carrier plate 700 is placed at the bottom of the square cover 310; When the square cover 310 and the carrier plate 700 move above the main box 510, the feeding rod 540 drives the feeding plate 550 to descend, the first probe 551 contacts the first pin 811, the second probe 552 contacts the second pin 821, and the third probe 553 contacts the detection contact area 831, the first probe 551, the second probe 552 and the third probe 553 are alternately powered, the first probe 551 and the second probe 552 cooperate to detect the performance parameters of the double-winding coil 800, the first probe 551 and the third probe 553 cooperate to detect the performance parameters of the first winding 810, and the third probe 553 and the second probe 552 cooperate to detect the performance parameters of the second winding 820; thus, comprehensive detection of the double-winding coil 800 is realized; S6, classification and unloading: After the double-winding coil 800 is detected, the square cover 310 and the carrier plate 700 move to the unloading position; The third driving rod 616 drives the stripping block 617 to extend outward, so that the stripping block 617 is inserted into the stripping groove 730 of the carrier plate 700, and then the second driving rod 612 drives the supporting plate 613 to descend, the two groups of stripping blocks 617 drive the carrier plate 700 to descend, and the first magnetic block 720 is separated from the second magnetic block 314; According to the detection result of S5, the worker places the product on the unloading conveyor belt 630 if the product is qualified, or places the product on the waste temporary table 640 if the product is unqualified; S7, the detection piece 900 is installed: The worker places the round cover body 910 at the bottom of the inclined transition section 830, the inclined transition section 830 is embedded into the rectangular groove 911, the round seat body 920 is clamped into the circular groove 912, and the second gap 922 of the round seat body 920 is aligned with the detection butt joint area; The worker rotates the locking screw 940 through the through hole into the threaded hole, so that the round seat body 920 and the round cover body 910 are integrated; the round seat body 920 and the round cover body 910 can form an insulation protection structure outside the detection butt joint area, at this time, the elastic contact piece 931 is misaligned on one side of the second gap 922, the isolation block 932 blocks the second gap 922, and the stop block 933 is stopped on the outside of the first gap; When the double-winding coil 800 is installed, the inclined transition section 830 is placed at the bottom of the first winding 810 and the second winding 820, and above the first pin 811 and the second pin 821; When the double-winding coil 800 is operated and maintained, the stop block 933 is pulled out to move the moving plate 930, so that the moving plate 930 moves along the storage sliding groove 921, the isolation block 932 is separated from the second gap 922, when the elastic contact piece 931 moves below the second gap 922, the elastic contact piece 931 resets and passes through the second gap 922, the elastic contact piece 931 contacts the detection butt joint area of the inclined transition section 830, the detection piece 955 is exposed, and the worker can use a measuring instrument to contact the detection piece 955 outside, and single-winding detection is performed through the detection piece 955.

[0032] In summary, the embodiment has the following technical effects: 1. The lifting and transferring component pushes the carrier plate 700 upward, the square cover 310 is quickly connected with the carrier plate 700 through the magnetic attraction structure to form a turnover forming structure of the double-winding coil 800, which not only can drive the coil to stably pass through each processing station, but also can protect the inclined transition section 830 through mechanical constraint to avoid stress deformation in the turnover process and ensure the integrity of the coil structure.

[0033] 2. The first groove 311 and the second groove 312 at the bottom of the square cover 310 precisely limit the first pin 811 and the second pin 821, ensuring that the pin extension position is uniform and stable, providing a precise target position for laser paint removal; at the same time, after the square cover 310 docks with the carrier plate 700, it forms a closed protective space, exposing only the pin and the area to be removed from the inclined transition section 830, avoiding laser irradiation of the coil body or other non-target areas, ensuring targeted paint removal, and preventing damage to the coil insulation layer.

[0034] 3. The square cover 310 has a built-in flue gas circulation channel (air inlet 320 → inside the square cover 310 → exhaust pipe 340), eliminating the need to set up a separate smoke extraction structure for each coil, thus simplifying the equipment layout; the channel is precisely connected to the suction component 400 to achieve directional exhaust of paint stripping fumes, avoiding smoke diffusion and pollution, and without affecting the coil turnover path.

[0035] 4. The circulating track 110 of the circulating turnover component 100 is arranged with workstations in the order of "loading area → front laser area → right side laser area → left side laser area → back laser area → inspection area → unloading area". The square cover 310 drives the material plate 700 to move continuously along the track, realizing the seamless connection of loading, paint removal, inspection and unloading, replacing the traditional segmented processing (manual transfer of each link), eliminating process intervals and improving production continuity.

[0036] 5. The attitude adjustment component 140 drives the square cover 310 to rotate the coil precisely by 45° (tilted and offset), 90° (reverse tilt), and 180° (reset) through the meshing of the rack and driven gear ring 341. This changes the pin from a "horizontally close" state to a "tilted and offset" state, allowing the previously hard-to-reach inner surface to be fully exposed to the laser. This completely solves the defect that traditional lasers cannot irradiate the inner surface. With the laser components in the four laser zones, the coil attitude changes sequentially with the workstation, achieving "front facing up → two right sides facing up → two left sides facing up → back facing up". This ensures that the front and back of the pin, both sides, and the inclined transition section 830 are all covered by the laser, resulting in complete and thorough paint removal and ensuring the continuity of subsequent wiring.

[0037] 6. The central notch 330 of the square cover 310 directly provides a channel for the paint removal of the oblique transition section 830. When the first laser component 220 processes the paint layer on the front of the pin, it can simultaneously perform laser paint removal on the oblique transition section 830 through the central notch 330, forming the detection contact area 831 in one go, without the need to set up a separate processing station. The detection contact area 831 can provide a unified benchmark for the subsequent docking of detection probes and detection components 900, improving the accuracy of detection and installation.

[0038] 7. The three sets of probes of the power-on detection component 500 are alternately powered on, which can simultaneously complete three types of tests: overall detection of the dual winding, independent detection of the first winding 810, and independent detection of the second winding 820. This completely solves the defect of traditional methods that can only detect the entire dual winding and cannot cover a single winding, ensuring the consistency of single winding performance in the products leaving the factory.

[0039] 8. After installation, the detection component 900 forms a closed insulation structure, which wraps around the detection contact area 831, effectively preventing oxidation, dust contamination and short circuit risks, and ensuring the stability of the double-winding coil 800 during transformer operation.

[0040] During the operation and maintenance phase, by pulling the movable plate 930 of the external test piece 900, the elastic contact piece 931 can be driven through the second notch and dock with the test contact area 831. The test piece 955 is exposed on the outside. Operators do not need to disassemble the coil or the test piece 900. They can directly use measuring instruments to dock with the test piece 955 to complete the single winding condition test, quickly discover potential differences in the operating conditions of the two windings, and avoid the fault from escalating.

[0041] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A laser stripping device for dual-winding transformer coils, characterized in that, include: The circulating assembly includes a circulating track and hangers. On one side of the circulating track, along the conveying direction, there are sequentially front laser area, right side laser area, left side laser area, and back laser area. On the other side of the circulating track, along the conveying direction, there are sequentially a detection area, a discharge area, and a loading area. Hangers arranged in a ring array are installed at the bottom of the circulating track, and hanging plates are installed at the bottom of the inner part of the hangers. The upper protective assembly includes a square cover with an open bottom, an air inlet in the center of the front side and an exhaust pipe in the center of the back side; the exhaust pipe is rotatably installed in the hanging plate, and a central notch is provided on the top surface of the square cover. The loading and unloading assembly includes a first lifting and transferring component and a second lifting and transferring component. The first lifting and transferring component is installed in the unloading area, and an unloading conveyor belt and a waste storage platform are installed on one side of the unloading area. The second lifting and transferring component is installed in the loading area, and a loading conveyor belt is installed on one side of the loading area. The second lifting and transferring component is used to lift the loading plate to connect with the square cover, and the first lifting and transferring component is used to remove the loading plate after the paint has been removed. The surface of the carrier plate stores a set of dual-winding coils; the surface of the carrier plate is symmetrically provided with inner support columns, and the first winding and the second winding of the dual-winding coil are respectively fitted on the two inner support columns. The first winding and the second winding are connected by a slanted transition section. The bottom of the square cover is provided with a first groove and a second groove; when the square cover is connected to the carrier plate, the first pin of the first winding passes through the first groove, and the second pin of the second winding passes through the second groove. The central notch is positioned opposite to the middle of the slanted transition section. The attitude adjustment component is installed on the back of the front laser area, the right side laser area, the left side laser area and the back laser area to drive the exhaust pipe to rotate and adjust the paint removal angle of the square cover. The intake assembly is mounted on top of the attitude adjustment assembly and is connected to the exhaust pipe, transforming the hood into a smoke exhaust channel.

2. The laser stripping device for a transformer dual-winding coil according to claim 1, characterized in that: The surface of the carrier plate is symmetrically provided with a first magnetic block, and the bottom surface of the square cover is symmetrically provided with an assembly groove. The assembly groove is embedded with a second magnetic block, and the second magnetic block cooperates with the first magnetic block to attract each other. The two ends of the carrier plate are symmetrically provided with peeling grooves.

3. The laser paint stripping device for a transformer dual-winding coil according to claim 1, characterized in that: The first lifting and transferring component and the second lifting and transferring component adopt the same structure. The first lifting and transferring component includes a base. The surface of the base is vertically and symmetrically provided with a second drive rod. The top of the second drive rod is provided with a support plate. The surface of the support plate is provided with a U-shaped enclosure frame. The two sides of the enclosure frame are symmetrically provided with through holes. A third drive rod is installed inside each set of through holes. The output end of the third drive rod is connected to a peeling block. The peeling block is inserted into the peeling groove.

4. The laser stripping device for a transformer dual-winding coil according to claim 1, characterized in that: The inner end of the exhaust pipe is equipped with a driven toothed ring, and the top of the back of the hanging plate is equipped with an elastic locking tooth, which elastically engages with the top of the driven toothed ring. The attitude adjustment assembly includes a crossbar. The top of the crossbar is provided with a first rack, a second rack, a third rack, and a fourth rack that mesh with the driven gear ring. The first rack is located between the front laser area and the right side laser area, the second rack is located between the right side laser area and the left side laser area, the third rack is located between the left side laser area and the back laser area, and the fourth rack is located outside the back laser area. The first and third racks are used to drive the square cover to rotate 45°, the second rack is used to drive the square cover to rotate 90°, and the fourth rack is used to drive the square cover to rotate 180°. The first, second, third, and fourth racks are each equipped with an equal-length abutment plate. The two ends of the abutment plate are chamfered. The abutment plate is used to drive the elastic locking teeth to lift up in order to unlock the driven gear ring.

5. The laser stripping device for a transformer dual-winding coil according to claim 1, characterized in that: The air intake assembly includes an air intake main pipe, which is connected in parallel with four sets of air intake branch pipes. The output end of the air intake main pipe is connected to the flue gas treatment host, and the exhaust pipe is aligned and connected to the air intake pipe.

6. The laser stripping device for a transformer dual-winding coil according to claim 1, characterized in that: It also includes a laser elimination assembly, which includes a positioning plate, on the side of which a first laser component, a second laser component, a third laser component and a fourth laser component are installed at intervals. The first laser component includes a first drive rod, a telescopic rod, and a first guide rail. The telescopic rod is symmetrically arranged on the back of the first guide rail, and the first drive rod is located in the middle of the back of the first guide rail. The first drive rod and the two sets of telescopic rods are fixed on the positioning plate. The first laser head is slidably installed on the side of the first guide rail. The second, third, and fourth laser components adopt the same structure. The second laser component includes a support rod and a second guide rail. The support rod is symmetrically arranged on the back of the second guide rail, and the support rod is fixed on the positioning plate. The second laser head is slidably installed on the side of the second guide rail.

7. The laser stripping device for a transformer dual-winding coil according to claim 1, characterized in that: It also includes a power-on detection component, installed in the detection area, for single-winding and dual-winding detection of dual-winding coils; The power-on detection component includes a main unit chassis, a test host is provided on the side of the main unit chassis, a mounting cover is provided on the top side of the main unit chassis, a feed rod is provided at the top inside the mounting cover, a feed plate is provided at the bottom end of the feed rod, and a first probe, a second probe and a third probe are provided on the bottom surface of the feed plate, which are arranged in a triangular pattern. The first probe, the second probe and the third probe are electrically connected to the test host. When the square cover and the carrier plate pass through the power-on detection assembly, the first probe is located above the first pin, the second probe is located directly above the second pin, and the third probe is located above the detection contact area. The first and second probes are used to detect the performance parameters of the dual-winding coil, the first and third probes are used to detect the performance parameters of the first winding, and the third and second probes are used to detect the performance parameters of the second winding.

8. The laser stripping device for a transformer dual-winding coil according to claim 1, characterized in that: It also includes a detection component, including a circular cover and a circular base. The circular base has a rectangular groove and a circular groove inside. The rectangular groove is connected to the inner end of the circular groove. A sloping transition section is embedded in the rectangular groove. The circular base is assembled and embedded in the circular groove. The circular base and the circular base are connected by a locking screw. The circular cover and the circular base form the external insulation structure of the detection contact area.

9. The laser paint stripping device for a transformer dual-winding coil according to claim 8, characterized in that: The circular cover has a first notch on its side wall, and the circular base has a storage groove inside. A movable plate is slidably installed inside the storage groove. An elastic contact piece is provided at the inner end of the surface of the movable plate, and a detection piece is provided at the outer end of the surface of the movable plate. The detection piece is located on the outside of the circular cover and is connected to the elastic contact piece through an inner conductor. A second notch is provided at the middle of the circular base relative to the detection contact area. An isolation block is provided on the surface of the movable plate. The isolation block is located on the side of the elastic contact piece near the first notch and cooperates to seal the second notch. A stop block is provided at the outer end of the movable plate and stops outside the first notch.

10. A laser stripping device for a transformer dual-winding coil according to claim 1 or 6, characterized in that: When the square cover passes through the front laser area, the first pin and the second pin are adjusted to be arranged horizontally. The first laser component removes the front paint layer of the first pin and the second pin, and removes the front paint layer of the oblique transition section through the middle notch laser to form a detection contact area. The detection contact area is used as the docking position of single winding detection and detection component. When the square cover passes through the laser area on the right side, the first pin and the second pin are adjusted to be tilted and staggered, and the second laser component removes the paint layer on the right side of the first pin and the second pin; When the square cover passes through the laser area on the right side, the first and second pins are adjusted to be tilted and staggered, and the third laser component removes the paint layer on the left side of the first and second pins. When the square cover passes through the laser area on the right side, the first and second pins are adjusted to be horizontally positioned, and the fourth laser component removes the paint layer on the back of the first and second pins.

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