CN114512333B - Processing technology of special-shaped coil - Google Patents

Processing technology of special-shaped coil Download PDF

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Publication number
CN114512333B
CN114512333B CN202210137350.7A CN202210137350A CN114512333B CN 114512333 B CN114512333 B CN 114512333B CN 202210137350 A CN202210137350 A CN 202210137350A CN 114512333 B CN114512333 B CN 114512333B
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hollow coil
coil
die holder
lower die
lifting frame
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CN114512333A (en
Inventor
郎新利
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Zhejiang Langli Electric Equipment Co ltd
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Zhejiang Langli Electric Equipment Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06Coil winding
    • H01F41/071Winding coils of special form
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/08Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness for measuring thickness
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06Coil winding
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06Coil winding
    • H01F41/077Deforming the cross section or shape of the winding material while winding

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • General Induction Heating (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The invention discloses a processing technology of a special-shaped coil, which comprises the steps of firstly, painting the surface of an enameled wire by self-adhesive paint to form a self-adhesive enameled wire, and then winding the self-adhesive enameled wire to form a hollow coil with a planar appearance; then placing the hollow coil on a lower die holder, heating or electrifying the hollow coil, pressing the C hollow coil by an upper die plate, enabling the hollow coil to be deformed from the outer plane to the arc shape under the mutual extrusion of the upper die plate and the lower die holder, and finally cooling the D hollow coil to enable the self-adhesive paint to be resolidified to obtain the finished hollow coil. The special-shaped hollow coil processing device can process the special-shaped hollow coil and prevent paint films of the special-shaped hollow coil from being damaged and the coil from being loose in the processing process.

Description

Processing technology of special-shaped coil
Technical Field
The invention relates to a special-shaped hollow coil, in particular to a processing technology of the special-shaped coil.
Background
With the improvement of the technical level, the demands on the appearance of the hollow coil are gradually increased; for example, for a flowmeter installed outside a water pipe, in order to reduce the overall appearance and improve the installation stability of the flowmeter, the appearance of the flowmeter needs to be designed into an arc shape and is tightly attached to the outer wall of the cylindrical water pipe, so that the hollow coil inside the flowmeter needs to be correspondingly processed into an arc shape so as to adapt to a flowmeter shell in an arc shape. However, the existing air coil is limited by the processing technology, so that the appearance of the air coil is an annular plane structure after winding and forming, and the appearance requirement of a user on the air coil cannot be met. If the sheet-shaped hollow coil is directly pressed into an arc-shaped structure by using a bending press, the hollow coil is loosened in the bending process, namely, adjacent enamelled wires in the coil are separated from each other and form a plurality of movable single coils, and the required bending effect cannot be achieved.
Therefore, a process for processing the special-shaped hollow coil with the circular arc-shaped structure is needed, so that paint film damage and coil loosening of the special-shaped hollow coil in the processing process are prevented.
Disclosure of Invention
The invention aims to provide a processing technology of a special-shaped coil. The special-shaped hollow coil processing device can be used for processing the special-shaped hollow coil and preventing paint films of the special-shaped hollow coil from being damaged and the coil from being loose in the processing process.
The technical scheme of the invention is as follows: a processing technology of a special-shaped coil comprises the following steps:
(1) the surface of the enameled wire is painted by self-adhesive paint to form a self-adhesive enameled wire, and then the self-adhesive enameled wire is wound to form a hollow coil with a planar appearance, so that an A hollow coil is obtained;
(2) placing the hollow coil A on a lower die holder to obtain a hollow coil B;
(3) heating or electrifying the hollow coil to convert self-adhesive paint on the surface of the hollow coil B from a solid state to a molten state to obtain the hollow coil C;
(4) pressing the C-shaped hollow coil by the upper die plate, so that the C-shaped hollow coil is deformed from the outer plane to the circular arc shape under the mutual extrusion of the upper die plate and the lower die holder, and the D-shaped hollow coil is obtained;
(5) and (3) cooling the D hollow coil to resolidify the self-adhesive paint, thus obtaining the finished hollow coil.
In the foregoing processing technology of the special-shaped coil, after the hollow coil a in the step (2) is placed, the lower die holder positions the central hole of the hollow coil a, and applies an outward extrusion force, so that the hollow coil a maintains a clamped state.
The processing technology of the special-shaped coil further comprises a processing device, the processing device comprises an upper die plate and a lower die holder, arc-shaped pressing surfaces are arranged on the upper die plate and the lower die holder, the upper end of the upper die plate is connected with a lifting frame, the outer part of the lifting frame is connected with a driving rod, the inner side of the lifting frame is connected with a limiting ring, the lower end of the limiting ring penetrates through the upper die plate and extends to the lower side, and an energizing device or a heating device is arranged on the outer side of the lower die holder.
In the foregoing processing technology of a special-shaped coil, the middle part of the upper die plate is provided with an opening for buckling the limiting ring, the upper end of the limiting ring penetrates through the opening and is detachably connected with a limiting plate, the limiting plate is slidably connected to the lower end of the lifting frame, and a first elastic piece is arranged between the limiting plate and the lifting frame.
In the foregoing processing technology of a special-shaped coil, the limiting plate is slidably connected with the lifting frame through the upright post, the first elastic piece is sleeved outside the upright post, and two ends of the first elastic piece are respectively attached to the limiting plate and the lifting frame.
In the foregoing processing technology of a special-shaped coil, two ends of the upright post respectively extend to the outer sides of the limiting plate and the lifting frame and are connected with limiting nuts, and the side wall of the upright post is coated with a scale.
In the foregoing processing technology of a special-shaped coil, a circular hole is formed in the middle of a pressing surface of the lower die holder, a plurality of positioning rods are distributed around the circular hole, the lower ends of the positioning rods are rotatably connected with positioning seats, one side of each positioning rod is provided with a second elastic piece connected with the positioning seat, and the lower ends of the positioning seats are connected with the lower die holder through third elastic pieces; the upper end of the positioning rod penetrates through the strip holes and extends to the position above the pressing surface of the lower die holder.
In the foregoing processing technology of a special-shaped coil, the middle part threaded connection of crane has the control rod, and the lower extreme of control rod passes the spacing ring and extends to the below, and the middle part of control rod is equipped with adjusting nut.
In the foregoing processing technology of a special-shaped coil, two sides of the lifting frame are provided with mounting walls, and two sides of the upper template are detachably connected to the mounting walls.
In the foregoing processing technology of a special-shaped coil, the heating device includes a hot air pipe located below the lower die holder, and a plurality of ventilation holes are distributed on the pressing surface of the lower die holder.
Compared with the prior art, the invention has the following characteristics:
(1) According to the invention, the self-adhesive paint is coated on the surface of the hollow coil, so that the formed hollow coil can be bonded for the second time in an electrified or heated state, and the hollow coil is pressed and bent in a fused state of a paint film by matching with a processing device, so that the paint film is effectively prevented from cracking and being damaged in the pressing and bending process, and the paint film is bonded again after the hollow coil is formed, and the bonding stability of adjacent enamelled wires in the coil is ensured;
(2) Through the locating rod arranged on the lower die holder, the central hole of the hollow coil can be limited and pre-tightened after the hollow coil is placed, so that the hollow coil can keep a central position in the pressing process, and the hollow coil is prevented from loosening after deformation, thereby improving the pressing stability and the forming effect of the hollow coil; through the structural cooperation of the limiting rings and the limiting plates, the upper die plate can be subjected to a lower positioning function in the pressing process, namely, when the upper die plate is pressed in place, the lifting frame is supported and limited by utilizing the cooperation of the lower die base, the limiting rings and the limiting plates, so that the hollow coil is prevented from being damaged due to excessive pressing of the upper die plate;
(3) On the basis, the height of the positioning rod can be controlled in the pressing process through the cooperation of the control rod and the lifting frame, so that the positioning rod can descend along with the downward pressing cooperation of the upper template, on one hand, the mutual interference of the positioning rod and the upper template is avoided, on the other hand, the gap between the positioning rod and the upper template is effectively reduced, and the limiting effect on the air coil in the pressing process is improved; meanwhile, the positioning rod can avoid collision with the upper template, so that the positioning rod can improve the limiting height in an initial state, namely the limiting effect on the hollow coil in deformation is further improved;
(4) Through the arrangement of the upright post and the dial gauge, operators can read the height position of the limiting ring, and the compression height of the limiting ring can be adjusted through the cooperation of the adjusting nut and the limiting plate; under the cooperation, operators can accurately adjust the gap between the upper die plate and the lower die base when the upper die plate is completely pressed down according to the thickness of the hollow coil, and the pressing effect of the upper die plate is further improved;
therefore, the invention can realize the processing of the special-shaped hollow coil and improve the forming stability of the hollow coil.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 in an initial state;
FIG. 2 is an enlarged view of FIG. 1 in the direction A;
FIG. 3 is an enlarged view of FIG. 1 from B;
FIG. 4 is a top view of the lower die holder;
FIG. 5 is a schematic illustration of the connection of the positioning rod and the second elastic member;
FIG. 6 is a schematic view of the structure of the machining device when pressed to the lever contact positioning seat;
FIG. 7 is a schematic view of the structure of the processing device in a complete press fit;
fig. 8 is a schematic structural diagram of embodiment 2.
The marks in the drawings are: the hot air pipe comprises a 1-upper die plate, a 2-lower die holder, a 3-pressing surface, a 4-lifting frame, a 5-driving rod, a 6-limiting ring, a 7-limiting plate, an 8-first elastic piece, a 9-upright post, a 10-limiting nut, an 11-positioning rod, a 12-positioning seat, a 13-second elastic piece, a 14-third elastic piece, a 15-control rod, a 16-adjusting nut, a 17-hot air pipe and a 201-long strip hole.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Example 1. A processing technology of a special-shaped coil comprises the following steps:
(1) the self-adhesive paint is used for painting the surface of the enameled wire to form a self-adhesive enameled wire, the self-adhesive paint layer is the existing self-adhesive paint with a secondary bonding function, and the self-adhesive paint can be subjected to secondary bonding in a heating or electrifying mode after the hollow coil is wound and molded; then winding the self-adhesive enameled wire to form a hollow coil with a flat shape, so as to obtain an A hollow coil;
(2) placing the hollow coil A on a lower die holder to obtain a hollow coil B;
(3) heating or electrifying the hollow coil to convert self-adhesive paint on the surface of the hollow coil B from a solid state to a molten state to obtain the hollow coil C;
(4) the upper die plate is used for pressing the C-shaped hollow coil, so that the C-shaped hollow coil is changed from a flat shape into an arc shape which is integrally bent along the thickness direction under the mutual extrusion of the upper die plate and the lower die holder, and the D-shaped hollow coil is obtained;
(5) and (3) cooling the D hollow coil to resolidify the self-adhesive paint, thus obtaining the finished hollow coil.
And (3) after the hollow coil A in the step (2) is placed, positioning the central hole of the hollow coil A by a lower die holder, and applying outward extrusion force to enable the hollow coil A to keep a clamping state.
The processing technology of the special-shaped coil further comprises a processing device, the processing device is shown in fig. 1-7 and comprises an upper die plate 1 and a lower die holder 2, circular arc-shaped pressing surfaces 3 are arranged on the upper die plate 1 and the lower die holder 2, the upper end of the upper die plate 1 is connected with a lifting frame 4, the outer part of the lifting frame 4 is connected with a driving rod 5, the inner side of the lifting frame 4 is connected with a limiting ring 6, the lower end of the limiting ring 6 penetrates through the upper die plate 1 and extends to the lower side, and a heating device is arranged on the outer side of the lower die holder 2.
The middle part of cope match-plate pattern 1 is equipped with the opening of lock spacing ring 6, the upper end of spacing ring 6 passes the opening and can dismantle and be connected with limiting plate 7, and limiting plate 7 sliding connection is equipped with first elastic component 8 at the lower extreme of crane 4 between limiting plate 7 and the crane 4, and this first elastic component 8 optional pressure spring.
Limiting plate 7 passes through stand 9 sliding connection crane 4, the outside at stand 9 is established to 8 cover of first elastic component, and the both ends of 8 elastic component are laminated each other with limiting plate 7 and crane 4 respectively.
The both ends of stand 9 extend to the outside of limiting plate 7 and crane 4 respectively and are connected with stop nut 10, and stop nut 10 inboard at stand 9 both ends all is equipped with the spacer, scribbles the scale on the lateral wall of stand 9, and the staff can calculate die holder 2 in the height under the state of compressing tightly through this scale.
The middle part of the pressing surface 3 of the lower die holder 2 is provided with a round hole, a plurality of positioning rods 11 are distributed around the round hole, the lower ends of the positioning rods 11 are rotationally connected with positioning seats 12, one side of each positioning rod 11 is provided with a second elastic piece 13 connected with each positioning seat 12, each second elastic piece 13 can be a torsion spring, the lower ends of the positioning seats 12 are connected with the lower die holder 2 through third elastic pieces 14, and each third elastic piece 14 can be a compression spring; a plurality of strip holes 201 are formed in the pressing surface 3 of the lower die holder 2, and the upper ends of the positioning rods 11 penetrate through the strip holes 201 and extend to the position above the pressing surface 3 of the lower die holder 2; the positioning seat 12 is provided with a baffle plate for limiting the angle of the lower end of the positioning rod 11, and the upper end of the positioning rod 11 is positioned in the strip hole 201 under the limit of the baffle plate.
The middle part threaded connection of crane 4 has control rod 15, and the lower extreme of control rod 15 passes spacing ring 6 and extends to the below, and the middle part of control rod 15 is equipped with adjusting nut 16.
The two sides of the lifting frame 4 are provided with mounting walls, and the two sides of the upper template 1 are detachably connected to the mounting walls.
The heating device comprises a hot air pipe 17 positioned below the lower die holder 2, and a plurality of ventilation holes are distributed on the pressing surface 3 of the lower die holder 2.
The working principle of the invention is as follows: when the invention is used, the enameled wire with the self-adhesive paint layer is wound into the hollow coil with a planar structure, and then the hollow coil is placed on the lower die holder 2 and sleeved outside the positioning rod 11. After the hollow coil is placed, the positioning rod 11 is nested through the central hole, so that the positioning rod 11 overcomes the second elastic piece 13 and then rotates inwards to shrink. The positioning rod 11 can position the hollow coil under the action of the second elastic piece 13, so that the hollow coil can maintain the middle position and the coil is prevented from loosening. After the air coil is placed, the bottom surface height of the control rod 15 is adjusted according to the outline of the air coil and the pressing surface 3, so that when the control rod 15 is contacted with the positioning seat 12, a gap of about 10mm is reserved between the pressing surface 3 of the upper template 1 and the positioning rod 11. After the control rod 15 is positioned, the bottom surface height of the adjusting nut 16 is adjusted according to the thickness of the air coil, and then when the upper template 1 is pressed in place, the upper end of the limiting plate 7 contacts the adjusting nut 16 and limits the height of the lifting frame 4.
During pressing, the lifting frame 4 is driven by the driving rod 5 above to descend, so that the pressing surface 3 at the bottom of the lower die holder 2 moves downwards and presses the hollow coil; the center hole of the inner side of the hollow coil forms hole type change along with the bending of the hollow coil in the pressing process, and the positioning rod 11 is matched and rotated along with the hole type change of the center hole under the action of the second elastic piece 13 and keeps the extrusion limit of the inner circle of the hollow coil, so that the center limit and the pressing effect of the hollow coil are ensured, and the loosening of the coil is avoided. When the lifting frame 4 moves to the control rod 15 to be attached to the positioning seat 12, a gap is reserved between the pressing surface 3 of the upper die plate 1 and the positioning rod 11 in the height direction, and the positioning seat 12 is driven to move downwards together by the subsequent pressing of the lifting frame 4, namely, the existence of the gap between the pressing surface 3 and the positioning rod 11 is ensured, and the rotation and tensioning stability of the positioning rod 11 are ensured. When the lifting frame 4 moves to the position-limiting ring 6 to contact the pressing surface 3 of the lower die holder 2, the lower die holder 2 carries out height-limiting on the limiting plate 7 through the limiting ring 6, so that the limiting plate 7 and the lifting frame 4 form relative sliding along with the continued pressing of the lifting frame 4 and cause the shrinkage of the first elastic piece 8; so that the height of the limiting plate 7 is kept unchanged, and the upper template 1 continues to be pressed down to press the hollow coil. When the upper die plate 1 is pressed down until the adjusting nut 16 contacts the limiting plate 7, the upper die plate 1 is in a complete pressing state at this time, and the lifting frame 4 is highly limited by utilizing the limiting plate 7, so that excessive pressing of the lifting frame 4 is avoided, and the pressing stability of the air coil is ensured.
Before the hollow coil is pressed, the hot air pipe 17 heats the hollow coil to enable self-adhesive paint on the surface of the enameled wire to be changed into a molten state under the heat; after the upper template 1 is used for pressing and forming the hollow coil, the hollow coil is naturally cooled to enable the self-adhesive paint to be re-solidified, and the formed special-shaped hollow coil is secondarily bonded, so that paint films on the surfaces of adjacent enameled wires can be bonded with each other, the hollow coil is kept in an integrated structure, and cracking of the paint films and loosening of the coil are avoided. The upper template 1 resets after the self-adhesive paint layer is solidified, and then an operator takes down the hollow coil to realize the processing and forming of the special-shaped hollow coil.
Example 2. A processing technology of a special-shaped coil comprises the following steps:
(1) the self-adhesive paint is used for painting the surface of the enameled wire to form a self-adhesive enameled wire, the self-adhesive paint layer is the existing self-adhesive paint with a secondary bonding function, and the self-adhesive paint can be subjected to secondary bonding in a heating or electrifying mode after the hollow coil is wound and molded; then winding the self-adhesive enameled wire to form a hollow coil with a flat shape, so as to obtain an A hollow coil;
(2) placing the hollow coil A on a lower die holder to obtain a hollow coil B;
(3) heating or electrifying the hollow coil to convert self-adhesive paint on the surface of the hollow coil B from a solid state to a molten state to obtain the hollow coil C;
(4) the upper die plate is used for pressing the C-shaped hollow coil, so that the C-shaped hollow coil is changed from a flat shape into an arc shape which is integrally bent along the thickness direction under the mutual extrusion of the upper die plate and the lower die holder, and the D-shaped hollow coil is obtained;
(5) and (3) cooling the D hollow coil to resolidify the self-adhesive paint, thus obtaining the finished hollow coil.
And (3) after the hollow coil A in the step (2) is placed, positioning the central hole of the hollow coil A by a lower die holder, and applying outward extrusion force to enable the hollow coil A to keep a clamping state.
The processing technology of the special-shaped coil further comprises a processing device, the processing device is shown in fig. 8 and comprises an upper template 1 and a lower die holder 2, circular arc-shaped pressing surfaces 3 are respectively arranged on the upper template 1 and the lower die holder 2, a lifting frame 4 is connected to the upper end of the upper template 1, a driving rod 5 is connected to the outer part of the lifting frame 4, a limiting ring 6 is connected to the inner side of the lifting frame 4, the lower end of the limiting ring 6 penetrates through the upper template 1 and extends to the lower side, an electrifying device is arranged on the outer side of the lower die holder 2, the electrifying device can select an electrifying device with a positive electrode electrifying clamp and a negative electrode electrifying clamp, and two ends of the hollow coil are respectively led out to the outer side and are connected with the electrifying clamp when the hollow coil is pressed, so that the hollow coil is electrified by the electrifying device to realize secondary adhesion of the self-adhesive paint layer; the middle part of die holder 2 is equipped with the round hole that supplies inboard enameled wire to pass.
The middle part of cope match-plate pattern 1 is equipped with the opening of lock spacing ring 6, the upper end of spacing ring 6 passes the opening and can dismantle and be connected with limiting plate 7, and limiting plate 7 sliding connection is equipped with first elastic component 8 at the lower extreme of crane 4 between limiting plate 7 and the crane 4, and this first elastic component 8 optional pressure spring.
Limiting plate 7 passes through stand 9 sliding connection crane 4, the outside at stand 9 is established to 8 cover of first elastic component, and the both ends of 8 elastic component are laminated each other with limiting plate 7 and crane 4 respectively.
The both ends of stand 9 extend to the outside of limiting plate 7 and crane 4 respectively and are connected with stop nut 10, and stop nut 10 inboard at stand 9 both ends all is equipped with the spacer, scribbles the scale on the lateral wall of stand 9, and the staff can calculate die holder 2 in the height under the state of compressing tightly through this scale.
The middle part of the pressing surface 3 of the lower die holder 2 is provided with a round hole, a plurality of positioning rods 11 are distributed around the round hole, the lower ends of the positioning rods 11 are rotationally connected with positioning seats 12, one side of each positioning rod 11 is provided with a second elastic piece 13 connected with each positioning seat 12, and the lower ends of the positioning seats 12 are connected with the lower die holder 2 through third elastic pieces 14; a plurality of strip holes 201 are formed in the pressing surface 3 of the lower die holder 2, and the upper ends of the positioning rods 11 penetrate through the strip holes 201 and extend to the position above the pressing surface 3 of the lower die holder 2.
The middle part threaded connection of crane 4 has control rod 15, and the lower extreme of control rod 15 passes spacing ring 6 and extends to the below, and the middle part of control rod 15 is equipped with adjusting nut 16.
The two sides of the lifting frame 4 are provided with mounting walls, and the two sides of the upper template 1 are detachably connected to the mounting walls.
In the embodiment, the energizing device is used for replacing the heating device to treat the hollow coil, so that self-adhesive paint on the surface of the hollow coil can be in a molten state after being energized, and the required forming effect of the hollow coil is achieved.

Claims (3)

1. The utility model provides a processingequipment of dysmorphism coil which characterized in that: the die comprises an upper die plate (1) and a lower die holder (2), wherein circular arc-shaped pressing surfaces (3) are respectively arranged on the upper die plate (1) and the lower die holder (2), the upper end of the upper die plate (1) is connected with a lifting frame (4), the outer part of the lifting frame (4) is connected with a driving rod (5), the inner side of the lifting frame (4) is connected with a limiting ring (6), the lower end of the limiting ring (6) penetrates through the upper die plate (1) and extends to the lower side, and an electrifying device or a heating device is arranged on the outer side of the lower die holder (2);
the middle part of the upper template (1) is provided with an opening for buckling a limiting ring (6), the upper end of the limiting ring (6) penetrates through the opening and is detachably connected with a limiting plate (7), the limiting plate (7) is slidably connected to the lower end of the lifting frame (4), and a first elastic piece (8) is arranged between the limiting plate (7) and the lifting frame (4);
the limiting plate (7) is connected with the lifting frame (4) in a sliding manner through the upright post (9), the first elastic piece (8) is sleeved outside the upright post (9), and two ends of the first elastic piece (8) are respectively attached to the limiting plate (7) and the lifting frame (4) mutually;
two ends of the upright post (9) respectively extend to the outer sides of the limiting plate (7) and the lifting frame (4) and are connected with limiting nuts (10), and the side wall of the upright post (9) is coated with a scale;
the middle part of the pressing surface (3) of the lower die holder (2) is provided with a round hole, a plurality of positioning rods (11) are distributed around the round hole, the lower ends of the positioning rods (11) are rotationally connected with positioning seats (12), one side of each positioning rod (11) is provided with a second elastic piece (13) connected with each positioning seat (12), and the lower ends of the positioning seats (12) are connected with the lower die holder (2) through third elastic pieces (14); a plurality of strip holes (201) are formed in the pressing surface (3) of the lower die holder (2), and the upper ends of the positioning rods (11) penetrate through the strip holes (201) and extend to the position above the pressing surface (3) of the lower die holder (2);
the middle part of the lifting frame (4) is in threaded connection with a control rod (15), the lower end of the control rod (15) penetrates through the limiting ring (6) to extend to the lower part, and an adjusting nut (16) is arranged in the middle of the control rod (15);
the using method of the processing device comprises the following steps:
(1) the surface of the enameled wire is painted by self-adhesive paint to form a self-adhesive enameled wire, and then the self-adhesive enameled wire is wound to form a hollow coil with a planar appearance, so that an A hollow coil is obtained;
(2) placing the hollow coil A on a lower die holder to obtain a hollow coil B;
(3) heating or electrifying the hollow coil to convert self-adhesive paint on the surface of the hollow coil B from a solid state to a molten state to obtain the hollow coil C;
(4) pressing the C-shaped hollow coil by the upper die plate, so that the C-shaped hollow coil is deformed from the outer plane to the circular arc shape under the mutual extrusion of the upper die plate and the lower die holder, and the D-shaped hollow coil is obtained;
(5) cooling the D hollow coil to resolidify the self-adhesive paint, so as to obtain a finished hollow coil;
and (3) after the hollow coil A in the step (2) is placed, positioning the central hole of the hollow coil A by a lower die holder, and applying outward extrusion force to enable the hollow coil A to keep a clamping state.
2. The apparatus for machining a shaped coil as claimed in claim 1, wherein: the two sides of the lifting frame (4) are provided with mounting walls, and the two sides of the upper template (1) are detachably connected to the mounting walls.
3. The apparatus for machining a shaped coil as claimed in claim 1, wherein: the heating device comprises a hot air pipe (17) positioned below the lower die holder (2), and a plurality of ventilation holes are distributed on the pressing surface (3) of the lower die holder (2).
CN202210137350.7A 2022-02-15 2022-02-15 Processing technology of special-shaped coil Active CN114512333B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1313610A (en) * 2000-03-10 2001-09-19 包头钢铁学院 Coil stuck thermally by plastics and its making method and mould
US6311389B1 (en) * 1998-07-01 2001-11-06 Kabushiki Kaisha Toshiba Gradient magnetic coil apparatus and method of manufacturing the same
CN101610017A (en) * 2009-07-18 2009-12-23 赣州发电设备成套制造有限公司 The winding special coils device and method
CN108335902A (en) * 2018-05-02 2018-07-27 河南理工大学 The production method of the automatic coil winding machine of special-shaped air core coil and special-shaped air core coil
CN109731982A (en) * 2019-02-20 2019-05-10 哈尔滨工业大学 Difficult-to-deformation material complex section hollow unit hinders heating electromagnetic manufacturing process certainly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6311389B1 (en) * 1998-07-01 2001-11-06 Kabushiki Kaisha Toshiba Gradient magnetic coil apparatus and method of manufacturing the same
CN1313610A (en) * 2000-03-10 2001-09-19 包头钢铁学院 Coil stuck thermally by plastics and its making method and mould
CN101610017A (en) * 2009-07-18 2009-12-23 赣州发电设备成套制造有限公司 The winding special coils device and method
CN108335902A (en) * 2018-05-02 2018-07-27 河南理工大学 The production method of the automatic coil winding machine of special-shaped air core coil and special-shaped air core coil
CN109731982A (en) * 2019-02-20 2019-05-10 哈尔滨工业大学 Difficult-to-deformation material complex section hollow unit hinders heating electromagnetic manufacturing process certainly

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