Dry-type transformer coil processing device and processing technology

Abstract

The dry-type transformer coil machining device comprises a winding machine body, the winding machine body comprises a driving rod capable of rotating and further comprises a core body detachably connected to the driving rod in an inserted mode, the core body comprises an upper core and a lower core, and the end face of the upper core and the end face of the lower core are jointly provided with matching holes corresponding to the driving rod; convex plates are detachably connected to the two end faces of the upper core in an inserted mode, matching rods are detachably connected to the convex plates in an inserted mode, and the lower ends of the matching rods are lower than the lower surface of the upper core. The end face of the lower core is fixedly connected with fixing rings in one-to-one correspondence with the matching rods, two fixing rods connected to the lower core in a sliding mode are arranged between every two opposite fixing rings, the fixing rods are located below the fixing rings, the sliding direction and the length direction of the fixing rods are horizontally arranged, and fixing holes matched with the fixing rods are formed in the matching rods; the lower core is further provided with a driving assembly for driving the fixing rod to move and reset. The dry-type transformer coil has the effect that the process for manufacturing the dry-type transformer coil is simpler.

Description

Technical Field

[0001] This application relates to the field of dry-type transformer processing equipment, and in particular to a dry-type transformer coil processing equipment and processing technology. Background Technology

[0002] Foil coils of dry-type transformers are typically manufactured using a foil winding machine. A foil winding machine generally includes a winding machine body, which includes a rotatable drive rod with a rectangular cross-section. A core is detachably inserted into the drive rod, comprising an upper core and a lower core. Both the upper and lower cores have mating holes on their end faces that mate with the drive rod. The core also includes two fixing plates, each with through holes for the drive rod to pass through. The two fixing plates are located at opposite ends of the core, and each fixing plate is secured to the corresponding end faces of the upper and lower cores using bolts.

[0003] When making foil coils, the operator fixes the fixing plate to the upper and lower cores with bolts, thus connecting and fixing the upper and lower cores to form the core. The core is then inserted into the drive rod. The main body of the winding machine works, causing the drive rod to rotate the core, thereby covering the metal foil plate with the insulating material layer and winding both onto the core. When the appropriate number of turns is reached, the metal foil plate and the insulating material layer are cut off, and the core is removed from the drive rod. The bolts are turned to remove the fixing plate, and finally the upper core is tapped to detach it from the coil. Then the lower core is tapped to detach it from the coil as well.

[0004] Because each foil coil requires the operator to assemble and disassemble the core, and tools are needed to turn multiple bolts during assembly and disassembly, the process of making dry-type transformer coils is complex due to the numerous steps involved. Summary of the Invention

[0005] To simplify the manufacturing process of dry-type transformer coils, this application provides a dry-type transformer coil processing apparatus and processing technology.

[0006] This application provides a dry-type transformer coil processing device with the following technical solution:

[0007] A dry-type transformer coil processing device includes a winding machine body. The winding machine body includes a rotatable drive rod with a rectangular cross-section and a core body detachably inserted into the drive rod. The core body includes an upper core and a lower core. The end faces of the upper core and the lower core are provided with mating holes corresponding to the drive rod. A protrusion plate can be detachably inserted into both end faces of the upper core. A mating rod located below the protrusion plate is detachably inserted into the protrusion plate. The lower end of the mating rod is lower than the lower surface of the upper core.

[0008] The lower core has a fixed ring fixedly connected to the end face, which corresponds to the mating rod. There are two fixed rods slidably connected to the lower core between the two opposite fixed rings. The fixed rods are located below the fixed rings. The sliding direction and length direction of the fixed rods are both horizontal. The mating rods have fixed holes that are adapted to the fixed rods.

[0009] The lower core is also equipped with a drive assembly for moving and resetting the fixed rod.

[0010] Optionally, a slider is fixedly connected to the surface of the fixed rod near the lower core, and a groove corresponding to the slider is opened on the end face of the lower core near the fixed rod. The length direction of the groove is consistent with the sliding direction of the fixed rod, and each slider is slidably inserted into the corresponding groove.

[0011] Optionally, the drive assembly includes a connecting spring fixed to the fixed rod, the extension and retraction direction of the connecting spring being set along the sliding direction of the fixed rod, the end of the connecting spring away from the fixed rod being fixed to the lower core, and the connecting spring causing the fixed rod to be located between two fixed rings;

[0012] Vertically arranged side plates are fixedly connected to the end faces of the two fixed rods that are close to each other;

[0013] The drive assembly also includes a pin hole on the lower core end face, the pin hole being located between two corresponding fixing rods, a pin rod being detachably inserted into the pin hole, and a handle being fixedly connected to the end of the pin rod, the size of the handle gradually increasing in the direction away from the pin rod, that is, the longest side of the handle being away from the pin rod.

[0014] Optionally, at least two limiting rods are vertically fixedly connected to the lower surface of the upper core.

[0015] Optionally, the lower core is further provided with a limiting component for guiding the mating rod and resetting the mating rod.

[0016] Optionally, the limiting component includes a horizontally arranged reset plate located below the fixed ring. The reset plate is slidably connected to the lower core. The sliding direction of the reset plate is vertical. A reset spring is fixedly connected to the reset plate. The extension and retraction direction of the reset spring is set along the sliding direction of the reset plate. The end of the reset spring away from the reset plate is fixed to the lower core. The reset spring supports the reset plate, so that the reset plate is close to the fixed ring.

[0017] Each of the two corresponding reset plates has a support rod fixedly connected to its side wall close to each other. A middle block is provided between the two support rods. The middle block is slidably connected to the lower core, and the sliding direction of the middle block is set along the sliding direction of the reset plate.

[0018] The lower core has multiple pin holes on its end face, which are evenly arranged vertically along the sliding trajectory of the middle block.

[0019] Optionally, a plug-in block is fixedly connected to the side wall of the convex plate near the upper core, and the upper core is provided with a plug-in slot that matches the plug-in block, and the plug-in block is inserted into the corresponding plug-in slot.

[0020] The lower surface of the convex plate is provided with a fixing groove that is adapted to the mating rod. The fixing groove passes through the convex plate and the length direction of the fixing groove is perpendicular to the length direction of the mating rod.

[0021] A processing method for a dry-type transformer coil, using the dry-type transformer coil processing apparatus described in any one of the above claims, includes the following steps:

[0022] S1. The upper core is overlapped on the lower core, and the mating rod is inserted into the corresponding fixing ring. The drive assembly is controlled to work, and the fixing rod is inserted into the corresponding fixing hole, thereby fixing the upper core and the lower core to form a core body. The core body is then sleeved on the drive rod, and the metal foil plate is overlapped on the core body.

[0023] S2. Weld a copper busbar to the end of the metal foil plate and fix the copper busbar to the core with a clamp. Cover the metal foil plate with the insulating material layer. Start the main body of the winding machine and make the drive rod drive the core to rotate, so that the metal foil plate and the insulating material layer are wound together on the core. When the appropriate number of turns is reached, cut the metal foil plate and the insulating material layer.

[0024] S3. Weld a copper busbar to the end of the metal foil plate, and connect and fix the two copper busbars to form a coil;

[0025] S4. Remove the core and coil from the drive rod, control the drive assembly to work, reset the fixing rod, remove the convex plate from the upper core, and then remove the mating rod. At this time, the upper core and lower core are disconnected. The operator knocks the upper core and lower core out of the coil respectively.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] 1. By setting up the winding machine body, drive rod, core, upper core, lower core, convex plate, mating rod, fixing ring, fixing rod, and drive assembly, when the upper core is placed on the lower core, the mating rod is inserted into the fixing ring, and the fixing rod is aligned with the fixing hole. At this time, the drive assembly is controlled to insert the fixing rod into the fixing hole, and the fixing rod and fixing hole cooperate to connect and fix the upper core and the lower core. When disassembling the upper core and the lower core, the convex plate is pulled off the upper core, and the drive assembly is controlled to work, so that the drive rod moves and resets, thereby contacting and cooperating with the mating rod. Then the mating rod is pulled off, and the operator can knock the upper core and the lower core out of the coil. In the process of assembling and separating the upper core and the lower core, the operator does not need to use tools to turn multiple bolts, making the process of making dry-type transformer coils simpler.

[0028] 2. By setting up a slider, connecting spring, side plate, pin, and handle, during the process of inserting the pin, the handle cooperates with the side plate to drive the fixed rod to move, so that the fixed rod is inserted into the fixed hole. The pin cooperates with the pin hole to limit the reset plate and also limit the fixed rod, making the operation of fixing the upper and lower cores simpler.

[0029] 3. By setting a reset plate, a reset spring, a guide rod, a support rod, and an intermediate block, the mating rod can be guided, reducing the possibility of deflection when the mating rod moves, and allowing the fixing hole to be better aligned with the fixing rod. Attached Figure Description

[0030] Figure 1 This is a schematic diagram illustrating the overall structure of the processing device in an embodiment of this application.

[0031] Figure 2 This is a schematic diagram illustrating the core structure in an embodiment of this application.

[0032] Figure 3 This is a schematic diagram illustrating the fixed component structure in an embodiment of this application.

[0033] Figure 4 This is a cross-sectional view illustrating the connection relationship between the convex plate and the upper core in an embodiment of this application.

[0034] Figure 5 This is a cross-sectional view illustrating the connection relationship between the fixing rod and the lower core in an embodiment of this application.

[0035] Figure 6 This is a schematic diagram illustrating the pin and handle structure in an embodiment of this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Winding machine body; 11. Drive rod; 12. Core; 121. Upper core; 1211. Insertion slot; 122. Lower core; 1221. Slide groove; 1222. Connecting groove; 1223. Groove; 123. Mating hole; 2. Protruding plate; 21. Insertion block; 22. Fixing groove; 3. Mating rod; 31. Fixing hole; 4. Fixing ring; 5. Fixing rod; 51. Slider; 6. Drive assembly; 61. Connecting spring; 62. Side plate; 63. Pin hole; 64. Pin rod; 65. Handle; 66. Limiting rod; 7. Limiting assembly; 71. Reset plate; 72. Connecting block; 73. Reset spring; 74. Guide rod; 75. Support rod; 76. Intermediate block. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0038] This application discloses a dry-type transformer coil processing apparatus. It includes a winding machine body 1, which includes a rotatable drive rod 11. The drive rod 11 has a rectangular cross-section, and a core 12 is detachably sleeved on the drive rod 11. The length of the core 12 is along the length of the drive rod 11. The core 12 includes an upper core 121 and a lower core 122. Both the upper core 121 and the lower core 122 have mating holes 123 that are adapted to the drive rod 11, and these mating holes 123 penetrate the upper core 121 and the lower core 122.

[0039] Two horizontally arranged protruding plates 2 can be detachably inserted into both end faces of the upper core 121. Insertion blocks 21 are fixedly connected to the side wall of the protruding plate 2 near the upper core 121. Insertion slots 1211 corresponding to the insertion blocks 21 are opened on the end face of the upper core 121. The insertion blocks 21 can be detachably inserted into the insertion slots 1211. A vertically arranged mating rod 3 is provided below each protruding plate 2. The upper end of the mating rod 3 is thickened to form a plug. A fixing groove 22 adapted to the upper end of the mating rod 3 is opened on the lower surface of the protruding plate 2. The fixing groove 22 passes through the protruding plate 2, and the length direction of the fixing groove 22 is set along the length direction of the core 12. The mating rod 3 and the fixing groove 22 cooperate to make the mating rod 3 and the protruding plate 2 detachably connected. When the protruding plate 2 and the mating rod 3 are placed vertically, the mating rod 3 does not detach from the protruding plate 2.

[0040] A fixing ring 4 corresponding to the mating rod 3 is fixedly connected to the end face of the lower core 122. Two fixing rods 5 are provided between the two corresponding fixing rings 4. The fixing rods 5 are slidably connected to the lower core 122, and the length direction and sliding direction of the fixing rods 5 are both set along the width direction of the core 12. A T-shaped slider 51 is fixedly connected to the side wall of the fixing rod 5 near the lower core 122. The lower core 122 has a sliding groove 1221 corresponding to the slider 51. Each slider 51 is slidably inserted into the corresponding sliding groove 1221. The slider 51 and the sliding groove 1221 cooperate to make the fixing rod 5 slidably connected to the lower core 122. The mating rod 3 has a fixing hole 31 adapted to the corresponding fixing rod 5. The fixing hole 31 passes through the fixing rod 5. When the upper core 121 and the lower core 122 are mated, the mating rod 3 is inserted into the corresponding mating ring. The fixing hole 31 is located below the fixing ring 4 and is aligned with the fixing rod 5.

[0041] The lower core 122 is provided with a drive assembly 6 for moving and resetting the fixed rod 5. The drive assembly 6 includes a connecting spring 61 fixedly connected to the side wall of the slider 51. The two corresponding connecting springs 61 are located between the two sliders 51 and in the corresponding groove 1221. The end of the connecting spring 61 away from the slider 51 is fixed to the groove wall of the corresponding end of the groove 1221. The connecting spring 61 limits the slider 51 and the fixed rod 5. When the upper core 121 and the lower core 122 are engaged, the two fixed rods 5 are located between the two engaging rods 3, reducing the occurrence of the fixed rods 5 hindering the moving of the engaging rods 3 in the fixed ring 4.

[0042] Each of the two corresponding fixed rods 5 has a vertically arranged side plate 62 fixedly connected to its side wall. The side plate 62 is perpendicular to the end face of the lower core 122. A pin hole 63 is also provided on the end face of the lower core 122. The pin hole 63 is located between the two side plates 62. A pin rod 64 is detachably inserted into the pin hole 63. A handle 65 is fixedly connected to the end of the pin rod 64. The size of the handle 65 gradually increases in the direction away from the pin rod 64. The side of the handle 65 away from the pin rod 64 is the maximum length of the handle 65, and the length of the side of the handle 65 away from the pin rod 64 is greater than the distance between the two side plates 62.

[0043] To facilitate better separation of the upper core 121 and the lower core 122 by operators, limiting rods 66 perpendicular to the upper core 121 are fixedly connected to the four corners of the lower surface of the upper core 121. When the upper core 121 and the lower core 122 are engaged, the limiting rods 66 contact the upper surface of the lower core 122. At this time, there is a distance between the surfaces of the upper core 121 and the lower core 122 that are close to each other. Through the above setting, the occurrence of the upper core 121 and the lower core 122 being tightly attached due to the winding of the coil is reduced during the coil manufacturing process, making it easier for operators to separate the upper core 121 and the lower core 122.

[0044] The lower core 122 is provided with a limiting component 7 for guiding and resetting the mating rod 3. The limiting component 7 includes a reset plate 71 corresponding to the fixed ring 4. The reset plate 71 is located below the corresponding fixed ring 4. A connecting block 72 is fixedly connected to the side wall of the reset plate 71 near the lower core 122. A connecting groove 1222 corresponding to the connecting block 72 is opened on the end face of the lower core 122. The length direction of the connecting groove 1222 is set along the height direction of the lower core 122. Each connecting block 72 is slidably inserted into the corresponding connecting groove 1222. A reset spring 73 is fixedly connected to the lower surface of the connecting block 72. The lower end of the reset spring 73 is fixedly connected to the groove wall at the lower end of the connecting groove 1222. The reset spring 73 supports the connecting block 72 and the reset plate 71, so that the reset plate 71 is adjacent to the corresponding fixed ring 4. The fixing rod 5 is located between the fixed ring 4 and the reset plate 71.

[0045] Multiple guide rods 74 are fixedly connected to the reset plate 71. In this embodiment, each reset plate 71 is provided with four guide rods 74. Each of the four guide rods 74 corresponds to one of the four side walls of the fixing ring 4. Each guide rod 74 passes through the fixing ring 4 and is slidably inserted into the fixing ring 4. When the mating rod 3 is inserted into the fixing ring 4, the guide rod 74 is adjacent to the mating rod 3. During the movement of the mating rod 3, the guide rod 74 can limit the movement of the mating rod 3, reduce the occurrence of the mating rod 3 being skewed, so that the fixing hole 31 can be better aligned with the fixing rod 5.

[0046] Horizontal support rods 75 are fixedly connected to the side walls of the two corresponding reset plates 71 that are close to each other. An intermediate block 76 is provided between the two support rods 75. A groove 1223 adapted to the intermediate block 76 is opened on the lower core 122. The length direction of the groove 1223 is set along the height direction of the lower core 122. The intermediate block 76 is slidably inserted into the groove 1223. The pin hole 63 is also located in the groove 1223. In this embodiment, there are multiple pin holes 63, and the multiple pin holes 63 are evenly distributed along the length direction of the groove 1223.

[0047] Before winding the foil coil, the operator first places the upper core 121 on the lower core 122. During the process of lowering the upper core 121, the mating rod 3 is gradually inserted into the fixing ring 4. When the mating rod 3 contacts the reset plate 71, as the mating rod 3 continues to move, the mating rod 3 pushes the reset plate 71 to move downward. The movement of the reset plate 71 causes the support rod 75 and the intermediate block 76 to move together, while compressing the reset spring 73.

[0048] When the limiting rod 66 contacts the lower core 122, the upper core 121 moves into place. At this time, the mating rod 3 and the reset plate 71 stop moving, and the fixing hole 31 aligns with the corresponding fixing rod 5. The operator holds the handle 65 and inserts the pin 64 into the corresponding pin hole 63, so that the pin 64 is inserted into the pin hole 63 located above and adjacent to the middle block 76. During the insertion of the pin 64, the handle 65 is inserted between the two side plates 62. As the pin 64 is inserted into the pin hole 63, the handle 65 pushes the two side plates 62 to move away from each other. The movement of the side plates 62 drives the corresponding fixing rod 5 and the slider 51 to move, and at the same time stretches the connecting spring 61.

[0049] When the pin 64 is inserted into place, the fixing rod 5 is inserted into the fixing hole 31. The pin 64 cooperates with the pin hole 63 to fix the middle block 76 and the reset plate 71. The pin 64 cooperates with the handle 65 and the side plate 62 to limit the fixing rod 5, so that the fixing rod 5 is inserted into the fixing hole 31, thereby connecting and fixing the upper core 121 and the lower core 122 to form the core 12.

[0050] The core 12 is fitted onto the drive rod 11, and its position is adjusted. The metal foil is then overlapped onto the core 12, and a copper busbar is welded onto the metal foil. The copper busbar is then fixed onto the core 12 using a clamp. Next, an insulating material layer is placed over the metal foil. The winding machine body 1 is then operated, causing the drive rod 11 to rotate the core 12, thereby winding the metal foil and the insulating material layer together onto the core 12. When the predetermined number of turns is reached, the operator controls the winding machine body 1 to stop the drive rod 11 and the core 12 from rotating. The metal foil and the insulating material layer are then cut off, and a copper busbar is welded to the end of the metal foil. Finally, the two copper busbars are connected and fixed to form a coil.

[0051] After the coil processing is completed, the core 12 is first removed from the drive rod 11, and the protrusion 2 is pulled to make the plug block 21 disengage from the plug slot 1211. Then, the operator holds the handle 65 and pulls out the pin 64. As the pin 64 is pulled out, the connecting spring 61 returns to its original shape and drives the slider 51, the fixing plate and the side plate 62 to move and reset, so that the fixing rod 5 gradually disengages from the fixing hole 31. When the side plate 62 disengages from the handle 65, the side plate 62 and the fixing rod 5 return to their initial positions. At this time, the fixing rod 5 disengages from the fixing hole 31, and the fixing rod 5 is disengaged from the mating rod 3.

[0052] When the pin 64 disengages from the pin hole 63, the return spring 73 returns to its original shape and drives the return plate 71, support rod 75 and intermediate plate to move upward and reset. The movement of the return plate 71 pushes the mating rod 3 to move upward and reset. When the return spring 73 returns to its initial position, the return plate 71 and the mating rod 3 also return to their initial positions. The operator removes the mating rod 3 from the fixing ring 4 and then knocks the upper core 121 and the lower core 122 out of the coil respectively.

[0053] Through the above operations, when connecting and fixing the upper core 121 and the lower core 122, the operator does not need to use tools to rotate multiple bolts to fix the bolts to the upper core 121 and the lower core 122; when disassembling the upper core 121 and the lower core 122, it is also not necessary to use tools to rotate multiple bolts to separate the bolts from the upper core 121 and the lower core 122. This makes it easier for the operator to fix the upper core 121 and the lower core 122, and simplifies the process of manufacturing dry-type transformer coils.

[0054] The implementation principle of a dry-type transformer coil processing device according to an embodiment of this application is as follows: The thickened end of the mating rod 3 is inserted into the fixing groove 22 of the convex plate 2. Then, the plug block 21 is inserted into the plug groove 1211, so that the convex plate 2 is fixed with the upper core 121. When connecting the upper core 121 and the lower core 122, the mating rod 3 is aligned with the fixing ring. The upper core 121 is lowered, the mating rod 3 moves downward and inserts into the fixing ring 4. As the upper core 121 and the mating rod 3 continue to move, the mating rod 3 pushes the reset plate 71 and the guide rod 74 to move downward and compresses the reset spring 73. When the limiting rod 66 contacts the lower core 122, the handle 65 is grasped and the pin 64 is inserted into the corresponding pin hole 63. During this process, the handle 65 cooperates with the side plate 62 so that the fixing rod 5 is inserted into the fixing hole 31. After completing the above operations, the operator puts the core 12 onto the drive rod 11.

[0055] The metal foil is overlapped on the core 12, and a copper busbar is welded to the end of the metal foil. Then, the copper busbar is fixed to the core 12 using a clamp. The insulating material layer is covered on the metal foil. The winding machine body 1 is controlled to work, so that the drive rod 11 drives the core 12 to rotate, and the metal foil and the insulating material layer are wound together on the core 12. During the winding process, the clamp is removed. When the predetermined number of turns is reached, the winding machine body 1 is controlled to work, so that the drive rod 11 and the core 12 stop rotating, the metal foil and the insulating material layer are cut off, and a copper busbar is welded to the end of the metal foil. The two copper busbars are connected and fixed. The core 122 body 12 is removed, the protrusion 2 is pulled out, and then the pin 64 is pulled out. After the reset plate 71 is reset, the mating rod 3 is pulled out. Finally, the upper core 121 and the lower core 122 are knocked out of the coil respectively.

[0056] This application also discloses a processing technology for dry-type transformer coils, which uses the aforementioned dry-type transformer coil processing apparatus and includes the following steps:

[0057] S1. Insert the mating rod 3 into the convex plate 2 and fix the convex plate 2 to the upper core 121. Place the upper core 121 onto the lower core 122 and insert the mating rod 3 into the corresponding fixing ring 4. Insert the pin 64 into the corresponding pin hole 63. During this process, the handle 65 cooperates with the side plate 62 to insert the fixing rod 5 into the corresponding fixing hole 31, thereby fixing the upper core 121 and the lower core 122 to form the core body 12. Then, the core body 12 is sleeved on the drive rod 11 and the metal foil plate is overlapped on the core body 12.

[0058] S2. Weld a copper busbar to the end of the metal foil plate and fix the copper busbar to the core 12 with a clamp. Cover the metal foil plate with the insulating material layer. Start the winding machine body 1 and drive the core 12 to rotate with the drive rod 11, so that the metal foil plate and the insulating material layer are wound together on the core 12. When the appropriate number of turns is reached, cut the metal foil plate and the insulating material layer.

[0059] S3. Weld a copper busbar to the end of the metal foil plate, and connect and fix the two copper busbars to form a coil;

[0060] S4. Remove the core 12 and coil from the drive rod 11, pull out the pin 64 to reset the fixing rod 5, remove the protrusion 2 from the upper core 121, and then remove the mating rod 3. At this time, the upper core 121 and the lower core 122 are disconnected. The operator knocks the upper core 121 and the lower core 122 out of the coil respectively.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dry-type transformer coil processing device, comprising a winding machine body (1), the winding machine body (1) comprising a rotatable drive rod (11) with a rectangular cross-section, and a core (12) detachably inserted into the drive rod (11), the core (12) comprising an upper core (121) and a lower core (122), the end faces of the upper core (121) and the lower core (122) being provided with mating holes (123) corresponding to the drive rod (11), characterized in that: Both end faces of the upper core (121) can be detachably inserted with protruding plates (2), and a mating rod (3) located below the protruding plate (2) can be detachably inserted on the protruding plate (2). The lower end of the mating rod (3) is lower than the lower surface of the upper core (121). The end face of the lower core (122) is fixedly connected with a fixing ring (4) corresponding to the mating rod (3). Between the two opposite fixing rings (4), there are two fixing rods (5) slidably connected to the lower core (122). The fixing rods (5) are located below the fixing rings (4). The sliding direction and length direction of the fixing rods (5) are both horizontal. The mating rod (3) is provided with a fixing hole (31) adapted to the fixing rod (5). The lower core (122) is also provided with a driving assembly (6) for driving the fixing rods (5) to move and reset.

2. The dry-type transformer coil processing device according to claim 1, characterized in that: The fixed rod (5) has a slider (51) fixedly connected to the surface near the lower core (122). The end face of the lower core (122) near the fixed rod (5) has a sliding groove (1221) corresponding to the slider (51). The length direction of the sliding groove (1221) is consistent with the sliding direction of the fixed rod (5). Each slider (51) is slidably inserted into the corresponding sliding groove (1221).

3. A dry-type transformer coil processing apparatus according to claim 1 or 2, characterized in that: The drive assembly (6) includes a connecting spring (61) fixed on a fixed rod (5). The extension and retraction direction of the connecting spring (61) is set along the sliding direction of the fixed rod (5). The end of the connecting spring (61) away from the fixed rod (5) is fixed to the lower core (122). The connecting spring (61) makes the fixed rod (5) located between two fixed rings (4). Vertically arranged side plates (62) are fixedly connected to the end faces of the two fixed rods (5) that are close to each other. The drive assembly (6) also includes a pin hole (63) opened on the end face of the lower core (122). The pin hole (63) is located between the two corresponding fixed rods (5). A pin rod (64) is detachably inserted into the pin hole (63). A handle (65) is fixedly connected to the end of the pin rod (64). The size of the handle (65) gradually increases in the direction away from the pin rod (64), that is, the longest side of the handle (65) is away from the pin rod (64).

4. The dry-type transformer coil processing device according to claim 3, characterized in that: At least two limiting rods (66) are vertically fixedly connected to the lower surface of the upper core (121).

5. The dry-type transformer coil processing device according to claim 3, characterized in that: The lower core (122) is also provided with a limiting component (7) for guiding the mating rod (3) and resetting the mating rod (3).

6. The dry-type transformer coil processing apparatus according to claim 5, characterized in that: The limiting component (7) includes a horizontally positioned reset plate (71) located below the fixing ring (4). The reset plate (71) is slidably connected to the lower core (122). The sliding direction of the reset plate (71) is vertical. A reset spring (73) is fixedly connected to the reset plate (71). The extension and retraction direction of the reset spring (73) is along the sliding direction of the reset plate (71). The end of the reset spring (73) away from the reset plate (71) is fixed to the lower core (122). The reset spring (73) supports the reset plate (71), making... The reset plate (71) is close to the fixing ring (4); the two corresponding reset plates (71) are fixedly connected to the side walls of each other, and an intermediate block (76) is provided between the two support rods (75). The intermediate block (76) is slidably connected to the lower core (122), and the sliding direction of the intermediate block (76) is set along the sliding direction of the reset plate (71); the number of pin holes (63) opened on the end face of the lower core (122) is multiple, and the multiple pin holes (63) are evenly arranged in the vertical direction on the sliding trajectory of the intermediate block (76).

7. The dry-type transformer coil processing device according to claim 1, characterized in that: A plug-in block (21) is fixedly connected to the side wall of the convex plate (2) near the upper core (121). The upper core (121) has a plug-in groove (1211) adapted to the plug-in block (21), and the plug-in block (21) is inserted into the corresponding plug-in groove (1211). A fixing groove (22) adapted to the mating rod (3) is opened on the lower surface of the convex plate (2). The fixing groove (22) penetrates the convex plate (2), and the length direction of the fixing groove (22) is perpendicular to the length direction of the mating rod (3).

8. A processing technology for a dry-type transformer coil, characterized in that, The processing of dry-type transformer coils using the dry-type transformer coil processing apparatus according to any one of claims 1 to 7 includes the following steps: S1. The upper core (121) is attached to the lower core (122), and the mating rod (3) is inserted into the corresponding fixing ring (4). The drive assembly (6) is controlled to work, and the fixing rod (5) is inserted into the corresponding fixing hole (31), thereby fixing the upper core (121) and the lower core (122) to form a core (12). The core (12) is then fitted onto the drive rod (11), and the metal foil is attached to the core (12). S2. Weld a copper busbar to the end of the metal foil plate and fix the copper busbar to the core (12) with a clamp. Cover the metal foil plate with the insulating material layer. Start the winding machine body (1) and drive the core (12) to rotate with the drive rod (11). Then, wind the metal foil plate and the insulating material layer together onto the core (12). When the appropriate number of turns is reached, cut the metal foil plate and the insulating material layer. S3. Weld a copper busbar to the end of the metal foil plate, and connect and fix the two copper busbars to form a coil; S4. Remove the core (12) and coil from the drive rod (11), control the drive assembly (6) to work, reset the fixing rod (5), remove the convex plate (2) from the upper core (121), and then remove the mating rod (3). At this time, the upper core (121) and the lower core (122) are disconnected. The operator knocks the upper core (121) and the lower core (122) out of the coil respectively.

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