A hollow coil processing device and its processing technology

Abstract

The present invention relates to the technical field related to the production of hollow coils, and discloses a hollow coil processing device and its processing technology. In order to solve the problem that the discharged hollow coil after processing is prone to deformation, an outer cylinder block and an adjustment cylinder block form a cylinder shape for coil winding. When the hollow coil is wound and needs to be discharged, the adjustment cylinder block is retracted into the outer cylinder block, and the two outer cylinder blocks are relatively close to each other, resulting in a relatively smaller diameter of the cylinder formed by the outer cylinder block and the adjustment cylinder block, so that the formed hollow coil does not closely adhere to the outer cylinder block and the adjustment cylinder block, and finally realizes the effect that the cylinder diameter is controllable for easy discharging.

Description

Technical Field

[0001] The present invention relates to the technical field related to hollow coil production, and in particular to a hollow coil processing device and a processing technology thereof. Background Art

[0002] An air-core coil is a toroidal inductor component wound by a conducting wire. It has no iron core or magnetic powder core inside, forming a hollow structure.

[0003] After searching, it is known that the announcement number CN113394018B discloses a hollow coil processing technology and processing device, which includes the following steps:

[0004] 1. The mold core and the rib are ejected at the same time and the mold core and the mold piece are fitted together. The mold core, the rib and the mold piece form a winding groove after fitting together.

[0005] 2. Move the rib to the end surface to fit the die, then the die core, rib and die rotate at the same speed under the drive of both sides, and then the winding device winds the enameled wire in sequence in the winding groove to form a hollow coil. During the winding process, the rib continues to retreat with the winding of the inner layer of enameled wire, so that the innermost layer of enameled wire is completely fitted; the surface of the enameled wire is coated with a self-adhesive paint layer, and the hollow coil is heated by a hot air blowpipe during the winding process;

[0006] 3. After the hollow coil is wound and formed, the core, ribs and mold sheet stop rotating, and then the core pulling device simultaneously retracts the core and ribs, and the limiting device abuts against the ribs during the retraction process, so that the ribs and the core slide relative to each other and the end faces are flush with each other. At the same time, the hollow coil and the core are separated and fall naturally.

[0007] According to the above content, it can be clearly seen that the current coil is wound on the mandrel. After the processing is completed, the limiting device is used to abut against the rib during the retraction process, so that the rib and the core slide relative to each other and the end faces are flush with each other. At the same time, the hollow coil and the core fall naturally after separation. However, in actual application, after the coil is wrapped around the mandrel and heated by hot air, the contact surface between the enameled wire and the mandrel will increase relatively, which increases the friction between the coil and the mandrel. Therefore, during the unloading process, it is necessary to accurately match the balance between the thrust and the deadweight and friction resistance of the coil. If the thrust is too large, the coil may be squeezed and deformed; if the thrust is too small, the static friction may not be overcome, resulting in unloading failure. Therefore, how to optimize the unloading process and reduce the risk of coil deformation while ensuring the quality of the coil is one of the problems that need to be solved in the current hollow coil processing technology. Summary of the invention

[0008] The present invention provides a hollow coil processing device and a processing technology thereof, which have the advantage of controllable change of the cylindrical diameter, and are used to solve the problem of easy deformation of the processed hollow coil during unloading mentioned in the above background technology.

[0009] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a hollow coil processing device, comprising: a support shaft, an intermediate frame is tightly connected at its end, a connecting rod is movably installed in a guide groove opened in the middle of the intermediate frame, outer cylinder blocks are symmetrically and movably installed on the side of the connecting rod and are pushed by a reset spring and approach each other, and an adjustment cylinder block is movably installed on the side of the intermediate frame using a control inclined groove; after the adjustment cylinder block is pushed outward and forms a cylinder with the outer cylinder block, a central support is provided for the winding of the hollow coil; the adjustment cylinder block is retracted into the outer cylinder block, so that the adjustment cylinder block and the outer cylinder block are away from the hollow coil for easy unloading.

[0010] Furthermore, it also includes: a winding frame, on one side of which a mold driven by a driver is installed, and a wire clamp is arranged on the side of the mold; a translation component is installed on the surface of the winding frame to realize the left and right reciprocating movement of the support shaft.

[0011] Furthermore, an inner gear ring and a retaining ring are installed at the end of the mold piece, and bolts pass through the mold piece and the inner gear ring and are fastened to the retaining ring; a connecting tooth head is fixedly installed at the end of the adjustment cylinder block; the inner gear ring and the connecting tooth head are engaged to realize the synchronous rotation of the mold piece and the support shaft.

[0012] Furthermore, a retaining ring is provided on the surface of the winding frame and is movably installed by means of a bearing; after the adjustment cylinder block is retracted into the outer cylinder block, the overall external dimension is reduced, thereby achieving relative staggering between the hollow coil and the retaining ring.

[0013] Furthermore, a detection push rod pushed by a detection push spring is movably installed on the inner side of the retaining ring, and a limited motion groove is arranged on the outer side of an adjustment cylinder block.

[0014] Furthermore, a conductive ring is fixedly installed on the outside of the detection push rod, and an electric contact head is arranged on the inside of the retaining ring. The electric contact head is connected to the electric slip ring fixed on the end of the retaining ring via a wire. A brush head slidingly connected to the electric slip ring is fixedly installed on the winding frame, and the brush head is electrically connected to the control unit via a wire.

[0015] A processing technology of a hollow coil processing device comprises the following steps:

[0016] S1. After the outer cylinder block and the adjustment cylinder block are fitted outwardly into place, a circular cylinder is formed.

[0017] S2. The outer side of the circular cylinder is used for winding wires.

[0018] S3. After the wire winding is completed, the adjusting cylinder block is retracted into the outer cylinder block, so that the adjusting cylinder block and the outer cylinder block are relatively far away from the formed hollow coil.

[0019] S4. The unconstrained hollow coil is easy to take out.

[0020] The present invention has the following beneficial effects:

[0021] A hollow coil processing device and its processing technology provided by the present invention mainly consist of an outer cylinder block, an adjustment cylinder block, and a corresponding control system. The outer cylinder block and the adjustment cylinder block are assembled in a precisely matched manner to jointly form a cylindrical structure for coil winding. During the winding process, these two parts maintain a stable relative position to ensure that the coil can be evenly and tightly wound on the formed cylindrical structure. When the winding operation of the hollow coil is completed and enters the unloading stage, the adjustment cylinder block will gradually retract into the inner part of the outer cylinder block according to a preset path through the control system. At the same time, the outer cylinder blocks will also approach each other through the action of springs. This action causes the diameter of the cylindrical shape originally maintained by the outer cylinder block and the adjustment cylinder block to gradually decrease, creating space for the smooth release of the coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings forming a part of the specification depict the embodiments disclosed by the present invention and, together with the specification, are used to explain the principles disclosed by the present invention.

[0023] Referring to the drawings, the present invention can be more clearly understood according to the following detailed description, where:

[0024] Figure 1 is a schematic external three-dimensional structure diagram of the whole of the present invention;

[0025] Figure 2 is a schematic internal plane sectional structure diagram of the support shaft of the present invention;

[0026] Figure 3 is Figure 2 an enlarged structure diagram at position E in

[0027] Figure 4 is a schematic internal three-dimensional structure diagram of the support shaft of the present invention;

[0028] Figure 5 is a schematic three-dimensional structure diagram of the retaining ring of the present invention;

[0029] Figure 6 is a schematic three-dimensional structure diagram of the die plate of the present invention;

[0030] Figure 7 is a schematic three-dimensional structure diagram of the adjustment cylinder block of the present invention.

[0031] In the figure: 1. winding frame; 1001. material discharging channel; 2. winding assembly; 200. wire releasing head; 3. driver; 4. die plate; 400. wire clamping device; 5. outer cylinder block; 501. connecting rod; 502. return spring; 6. adjusting cylinder block; 600. limiting groove; 601. connecting tooth head; 7. support shaft; 8. intermediate frame; 800. control inclined groove; 801. guiding groove; 9. internal gear ring; 10. retaining ring; 11. snap ring; 12. detection push rod; 120. conductive ring; 121. detection push spring; 13. electric slip ring; 130. contact head; 14. electric brush head; 15. translation assembly. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figure 1 It can be seen that the winding frame 1 provides installation and support for the entire device. A driver 3 is fixed on one side of the surface of the winding frame 1. The driver 3 is mainly composed of a servo motor and a reducer, and the power and model can be independently selected according to the usage requirements. Generally, a die plate 4 is fixed at the output end of the driver 3, and the die plate 4 can rotate under the drive of the driver 3.

[0034] A winding assembly 2 is fixedly installed on the same side of the surface of the winding frame 1 above the driver 3. The winding assembly 2 can drive the wire releasing head 200 above the die plate 4 to perform reciprocating left and right movements. Generally, the wire releasing head 200 contains wires required for processing hollow coils, such as copper wires. As Figure 1 and Figure 6 shown, a wire clamping device 400 is arranged on the side of the die plate 4. The wire clamping device 400 can drive the screw to rotate relative to each other manually / electrically, so as to realize the clamping of the ends of the wires by the two clamping plates on the wire clamping device 400, ensuring that the ends of the wires can be relatively fixed during the winding of the hollow coil.

[0035] The translation assembly 15 is movably installed on the surface of the winding frame 1. A support shaft 7 is movably installed at the top of the translation assembly 15. More specifically, the translation assembly 15 is composed of a gas / hydraulic cylinder or a motor screw rod, so as to drive the movable frame to perform reciprocating left and right movements along the surface of the winding frame 1. During this process, the translation assembly 15 can also drive the support shaft 7 to perform reciprocating left and right movements. Combining Figure 2 、 Figure 4 and Figure 7It can be seen that the end of the support shaft 7 is fixedly connected with an intermediate frame 8. The intermediate frame 8 is in the shape of a cuboid, and a guide groove 801 along the axial direction of the support shaft 7 is provided in the middle thereof. A connecting rod 501 that can only reciprocate along the axial direction of the support shaft 7 is movably installed in the guide groove 801. There are two connecting rods 501, and outer cylinder blocks 5 are symmetrically and movably installed on the sides of the two connecting rods 501. A return spring 502 is installed between the outer cylinder block 5 and the nut threadedly connected to the end of the connecting rod 501. Therefore, under normal conditions, driven by the elastic force of the return spring 502, the two outer cylinder blocks 5 approach each other. Control inclined grooves 800 are provided on both sides of the guide groove 801 on the side of the intermediate frame 8. The roller bracket on the adjusting cylinder block 6 is movably installed in the control inclined groove 800. A guide block is installed on the outer side of the intermediate frame 8 by using a dovetail groove, and a telescopic rod is provided between the guide block and the adjusting cylinder block 6. From Figure 2 and Figure 4 It can be seen that there are two adjusting cylinder blocks 6, and the two adjusting cylinder blocks 6 are symmetrically arranged. After the intermediate frame 8 pushes the outer cylinder block 5 and the adjusting cylinder block 6 against the end of the diaphragm 4, the support shaft 7 that continues to move to the left will push the intermediate frame 8 to move further. The adjusting cylinder block 6 will be pushed outwards according to the control inclined groove 800, and a complete cylinder is formed between the adjusting cylinder block 6 and the outer cylinder block 5. According to the above, the wire on the wire feeding head 200 is wound around the outside of the adjusting cylinder block 6 to complete the processing of the hollow coil. After the hollow coil is wound, by retracting the intermediate frame 8, the adjusting cylinder block 6 is retracted to the inside of the outer cylinder block 5 along the control inclined groove 800, and the two outer cylinder blocks 5 approach each other relatively by the elastic force of the return spring 502, so as to realize the tendency of both the outer cylinder block 5 and the adjusting cylinder block 6 to move relatively away from the hollow coil, which is convenient for unloading the hollow coil.

[0036] As mentioned in the content disclosed in the background art, "move the rib to the end face to fit the diaphragm, and then the mold core, rib and diaphragm rotate at the same speed under the drive of both sides". At present, the diaphragm 4 and the support shaft 7 are mainly controlled by two motors and realize synchronous rotation of the two. This requires ensuring that the synchronism of the motor movement always remains consistent. However, affected by the service life, environment and wear during long-term use, torque deviation is inevitable between the diaphragm 4 and the support shaft 7, which leads to differential speed between the diaphragm 4 and the support shaft 7, and then leads to uneven distribution of the wire, thus affecting the winding quality of the hollow coil. In order to solve the problem of asynchronous rotation of the diaphragm 4 and the support shaft 7 in this application, refer to Figure 2 and Figure 6It can be seen that an internal gear ring 9 and a retaining ring 10 are installed at the end of the diaphragm 4. Bolts pass through the diaphragm 4 and the internal gear ring 9 and are fastened to the retaining ring 10, thereby realizing the stable connection of the internal gear ring 9 and the retaining ring 10 to the diaphragm 4. Correspondingly, a connecting tooth head 601 is fixedly installed at the end of the adjusting cylinder block 6. Under normal conditions, since the adjusting cylinder block 6 retracts into the outer cylinder block 5, the overall outer diameter of the outer cylinder block 5 and the adjusting cylinder block 6 is relatively smaller than the inner diameter of the retaining ring 10, enabling the outer cylinder block 5 and the adjusting cylinder block 6 to be smoothly inserted into the retaining ring 10. As the outer cylinder block 5 and the adjusting cylinder block 6 open, the connecting tooth head 601 on the outside of the adjusting cylinder block 6 will mesh with the internal gear ring 9. Moreover, when the outer cylinder block 5 and the adjusting cylinder block 6 form a complete cylinder, the outer diameter of the cylinder is the same as the inner diameter of the retaining ring 10. Finally, when the driver 3 drives the diaphragm 4 to rotate, due to the stable meshing between the internal gear ring 9 and the connecting tooth head 601, it ensures that the diaphragm 4 and the support shaft 7 always move synchronously, thereby ensuring the synchronism of their rotations.

[0037] In terms of unloading, as mentioned in the background art, currently, the hollow coil is mainly pushed out by the axial movement of the core mold and the retaining ring. This requires closer cooperation between the two. The reason is that the hollow coil (i.e., the diameter of the copper wire) is relatively thin. If the clearance between the two is too large, the coil is likely to get stuck in the clearance between them. To prevent such problems, combined with Figure 1 、 Figure 2 and Figure 5 It can be seen that there is a retaining ring 11 movably installed on the surface of the winding frame 1 using brackets and bearings. The diameter of the cylinder formed by the outer cylinder block 5 and the adjusting cylinder block 6 is equal to and coaxial with the inner diameter of the retaining ring 11. Under normal conditions, when the outer cylinder block 5 and the adjusting cylinder block 6 complete the opening fit, the left end is restricted by the retaining ring 10 and the right end is restricted by the retaining ring 11, ensuring the restriction of the ends of the opened outer cylinder block 5 and the adjusting cylinder block 6. When the driver 3 drives the support shaft 7 to rotate synchronously through the diaphragm 4, the wire feeding head 200 winds the copper wire around the outside of the cylinder formed by the outer cylinder block 5 and the adjusting cylinder block 6, and uses the ends of the retaining ring 10 and the retaining ring 11 to restrict the ends of the hollow coil, so that the length of the manufactured hollow coil is the distance value between the ends of the retaining ring 10 and the retaining ring 11. After processing and unloading, since the adjusting cylinder block 6 retracts into the outer cylinder block 5, its overall external dimension decreases, that is, the highest part of the cylinder formed by the outer cylinder block 5 and the adjusting cylinder block 6 is lower than the highest part of the inner diameter of the retaining ring 11. During this process, the hollow coil has a tendency to move downward due to gravity, resulting in a relative displacement between the hollow coil and the retaining ring 11. When the outer cylinder block 5 and the adjusting cylinder block 6 pass through the inside of the retaining ring 11, the unloading of the hollow coil can be achieved by using the blocking of the ends of the retaining ring 11 on the hollow coil.

[0038] To detect whether the outer cylinder block 5 and the adjusting cylinder block 6 normally form a cylindrical shape before winding, combined with Figure 2 、Figure 3 and Figure 5 It can be seen that a detection push rod 12, which is movably installed inside the retaining ring 11 and is pushed towards its central part by a detection push spring 121, has its end abutted against the outer side of the adjustment cylinder block 6. A limiting groove 600 is formed on the outer side of one of the adjustment cylinder blocks 6. When the outer cylinder block 5 and the adjustment cylinder block 6 are horizontally installed in place, the end of the detection push rod 12 will abut against the limiting groove 600, as Figure 3 shown. At the same time, a conductive ring 120 is fixedly installed on the outer side of the detection push rod 12. Correspondingly, a contact head 130 is arranged on the inner side of the retaining ring 11. The contact head 130 is connected to an electric slip ring 13 fixed at the end of the retaining ring 11 through a wire. An electric brush head 14, which is slidably connected to the electric slip ring 13, is fixedly installed on the winding frame 1. The electric brush head 14 is electrically connected to the control unit through a wire. When the outer cylinder block 5 and the adjustment cylinder block 6 form a normal cylindrical shape, the two adjustment cylinder blocks 6 will abut against their respective detection push rods 12 and move outward, causing the conductive ring 120 and the contact head 130 to be connected, and finally enabling electrical connection between the two electric slip rings 13. Since one detection push rod 12 abuts against the outer side of the adjustment cylinder block 6 and the other detection push rod 12 abuts against the limiting groove 600 of the other adjustment cylinder block 6, when the outer cylinder block 5 and the adjustment cylinder block 6 form a normal cylindrical shape, the actual heights at which the two detection push rods 12 are pushed outwards are different. This further limits that the detection push rod 12 must abut against the limiting groove 600 to enable the conductive ring 120 and the contact head 130 to be connected. On the one hand, it detects whether the outer cylinder block 5 and the adjustment cylinder block 6 are inserted in place. On the other hand, it detects whether the outer cylinder block 5 and the adjustment cylinder block 6 are properly matched, ensuring that the outer cylinder block 5 and the adjustment cylinder block 6 can form the required cylindrical shape at the preset position. It should be noted that according to the adjustment of the control unit, only when the two electric slip rings 13 are connected can the driver 3 start. It is ensured that when the outer cylinder block 5 and the adjustment cylinder block 6 move in place, the driver 3 rotates to process the hollow coil.

[0039] The working process of this application is as follows:

[0040] According to Figure 2 shown, the translation assembly 15 drives the support shaft 7 to move to the left. When the outer cylinder block 5 and the adjustment cylinder block 6 pass through the retaining ring 10 and abut against the end of the die plate 4, the support shaft 7 that continues to move to the left will push the intermediate frame 8 further to the left. The control inclined groove 800 will push the adjustment cylinder block 6 to move outward until the adjustment cylinder block 6 is fully pushed out. According to Figure 4 shown, the adjustment cylinder block 6 that is pushed outwards will abut against the inner inclined surface of the outer cylinder block 5, forcing the two outer cylinder blocks 5 to move relatively away from each other and move along the connecting rod 501 and compress the return spring 502. Finally, the cylindrical shapes formed by the outer cylinder block 5 and the adjustment cylinder block 6 respectively abut against the inner sides of the retaining ring 10 and the retaining ring 11, and the connecting tooth head 601 and the internal gear ring 9 are engaged and driven.

[0041] During this process, before the outer cylinder block 5 and the adjustment cylinder block 6 approach the die piece 4, the outer cylinder block 5 is pushed by the return spring 502 to make the two outer cylinder blocks 5 approach each other. At this time, the adjustment cylinder block 6 retracts into the two outer cylinder blocks 5. Combining with the detection push rod 12 being pushed by the elastic force of the detection push spring 121 to always abut against the outer side of the adjustment cylinder block 6. Therefore, there will be a spacing equal to the diameter of the detection push rod 12 between the two outer cylinder blocks 5. When the middle frame 8 drives the outer cylinder block 5 and the adjustment cylinder block 6 to move left and right, the detection push rod 12 will also move along the side of the adjustment cylinder block 6 and in the horizontal direction of the limit groove 600. It can be seen from this that when the outer cylinder block 5 and the adjustment cylinder block 6 move left to the in-place position (that is, after completely adhering to the end of the die piece 4), the detection push rod 12 will abut against the limit groove 600. When the outer cylinder block 5 and the adjustment cylinder block 6 move outwards to form a complete cylinder, the two detection push rods 12 will push their respective conductive rings 120 to connect with the contact heads 130. After the electric brush head 14 passes through the electric slip ring 13, as well as the two conductive rings 120 and the contact heads 130, the electric brush heads 14 are interconnected with each other. The interconnection is transmitted to the control unit in the form of an electrical signal. If the control unit receives this electrical signal, it means that the outer cylinder block 5 and the adjustment cylinder block 6 have been installed in place; otherwise, if they are not properly placed between the outer cylinder block 5 and the adjustment cylinder block 6, the driver 3 will not work either.

[0042] After that, the wire winding assembly 2 drives the wire feeding head 200 to clamp the end of the wire by the wire clamp 400. The wire is not limited to copper wire. After that, when the wire feeding head 200 moves axially along the die piece 4, the wire passes through the rectangular groove on the side of the die piece 4. After the wire feeding head 200 moves to the connection position of the die piece 4 and the outer cylinder block 5 / adjustment cylinder block 6, the driver 3 is used to drive the die piece 4 to rotate. At the same time, the meshing between the connecting tooth head 601 and the internal gear ring 9 forces the outer cylinder block 5 / adjustment cylinder block 6 and the support shaft 7 to rotate synchronously. The winding of the hollow coil is realized by the rotation of the outer cylinder block 5 / adjustment cylinder block 6. By reciprocating the wire feeding head 200 axially along the support shaft 7, the winding work of the hollow coil is finally completed. After the winding is completed, the wire extending from the wire feeding head 200 is cut off and the wire clamp 400 releases the clamping of the end of the wire.

[0043] The translation component 15 drives the support shaft 7 to move to the right. During this process, since one detection push rod 12 abuts against the limiting groove 600 and the other detection push rod 12 abuts against the outside of the other adjustment cylinder block 6, on the one hand, the two adjustment cylinder blocks 6 move relatively closer to each other, and the adjustment cylinder blocks 6 are retracted into the outer cylinder block 5; on the other hand, the detection push rod 12 abuts against the limiting groove 600, hindering the rightward movement of the adjustment cylinder block 6. Finally, after the two adjustment cylinder blocks 6 are completely retracted into the outer cylinder block 5, the two outer cylinder blocks 5 are pushed by the elastic force of the return spring 502 to move closer to each other until the outer cylinder block 5 abuts against the detection push rod 12 and clamps it. As the support shaft 7 drives the intermediate frame 8 to continue moving to the right, the intermediate frame 8 drives the outer cylinder block 5 to disengage from the retaining ring 10. During this process, since the adjustment cylinder block 6 is retracted into the outer cylinder block 5, the overall external dimensions of the outer cylinder block 5 and the adjustment cylinder block 6 will decrease, and the formed hollow coil will move downward a certain distance. As the outer cylinder block 5 and the adjustment cylinder block 6 move to the right following the support shaft 7, the end face of the retaining ring 11 blocks the hollow coil, causing it to disengage from the outer cylinder block 5 / the adjustment cylinder block 6 and finally fall onto the lower discharge channel 1001.

Claims

1. A hollow coil processing device, characterized in that: include: A winding frame (1) has a die (4) driven by a driver (3) mounted on one side of its surface, and a wire clamp (400) is arranged on the side of the die (4); a winding assembly (2) located above the driver (3) is fixedly mounted on the same side of the surface of the winding frame (1); A translation assembly (15) is mounted on the surface of the winding frame (1), and a support shaft (7) is movably mounted on the top of the translation assembly (15). The translation assembly (15) can drive the support shaft (7) to move back and forth left and right; The support shaft (7) is fastened with an intermediate frame (8) at its end, the intermediate frame (8) being in the shape of a rectangular parallelepiped, the connecting rod (501) being movably mounted in a guide groove (801) provided in the middle of the intermediate frame (8), and there are two connecting rods (501), the connecting rod (501) being able to reciprocate along the axial direction of the support shaft (7) according to the guide groove (801), the outer cylinder blocks (5) being pushed by the return spring (502) and approaching each other are symmetrically and movably mounted on the side of the connecting rod (501), the control inclined grooves (800) being provided on the side of the intermediate frame (8) and being located on both sides of the guide groove (801), the adjusting cylinder blocks (6) being movably mounted on the side of the intermediate frame (8) by means of the control inclined grooves (800), the number of the adjusting cylinder blocks (6) being two, the two adjusting cylinder blocks (6) being symmetrically arranged, the outer side of the intermediate frame (8) being provided with guide blocks installed by means of dovetail grooves, and a telescopic rod being provided between the guide blocks and the adjusting cylinder blocks (6); After the adjusting cylinder block (6) is pushed outward and forms a cylinder with the outer cylinder block (5), a central support is provided for the winding of the hollow coil; the adjusting cylinder block (6) is retracted into the outer cylinder block (5), so that the adjusting cylinder block (6) and the outer cylinder block (5) are away from the hollow coil to facilitate unloading.

2. The hollow coil processing device according to claim 1, characterized in that: An inner gear ring (9) and a retaining ring (10) are installed at the end of the mold piece (4), and a bolt passes through the mold piece (4) and the inner gear ring (9) and is fastened to the retaining ring (10); A connecting tooth head (601) is fixedly mounted on the end of the adjusting cylinder block (6); The meshing between the inner gear ring (9) and the connecting gear head (601) enables the mold piece (4) and the support shaft (7) to rotate synchronously.

3. The hollow coil processing device according to claim 1, characterized in that: The winding frame (1) has a retaining ring (11) on its surface which is movably mounted using a bearing; After the adjustment cylinder block (6) is retracted into the outer cylinder block (5), the overall external dimensions are reduced, thereby achieving relative staggering between the hollow coil and the retaining ring (11).

4. The hollow coil processing device according to claim 3, characterized in that: A detection push rod (12) pushed by a detection push spring (121) is movably mounted on the inner side of the retaining ring (11), and a limited motion groove (600) is provided on the outer side of an adjustment cylinder block (6).

5. The hollow coil processing device according to claim 4, characterized in that: A conductive ring (120) is fixedly mounted on the outside of the detection push rod (12), an electric contact head (130) is arranged on the inside of the retaining ring (11), the electric contact head (130) is connected to an electric slip ring (13) fixed to the end of the retaining ring (11) via a wire, an electric brush head (14) slidably connected to the electric slip ring (13) is fixedly mounted on the winding frame (1), and the electric brush head (14) is electrically connected to the control unit via a wire.

6. A processing technology of the hollow coil processing device according to claim 1, characterized in that: The following steps are involved: After S1, the outer cylinder block (5) and the adjustment cylinder block (6) are fitted outwardly into place, a circular cylinder is formed; S2, the outer side of the circular cylinder is used for winding wire; S3, after the wire winding is completed, the adjusting cylinder block (6) is retracted into the outer cylinder block (5), so that the adjusting cylinder block (6) and the outer cylinder block (5) are relatively far away from the formed hollow coil; S4. The unconstrained hollow coil is easy to remove.

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