CN210575538U

CN210575538U - Planar coil winding mechanism

Info

Publication number: CN210575538U
Application number: CN201921897701.4U
Authority: CN
Inventors: 边星; 王金阵; 伍继浩; 李青
Original assignee: Technical Institute of Physics and Chemistry of CAS
Current assignee: Technical Institute of Physics and Chemistry of CAS
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-05-19
Anticipated expiration: 2029-11-05

Abstract

The application provides a planar coil winding mechanism, which comprises a coil fixing component and a height control component, wherein the coil fixing component comprises a coil shaft, a coil base and a base positioning piece, the coil shaft is positioned in the center of the coil base, the top surface of the coil shaft exceeds the top surface of the coil base, the exceeding distance is not more than the wire diameter of a wound coil, the coil base is fixed on the base positioning piece, at least one wire fixing groove along the tangential direction of the coil shaft is formed in the top surface of the coil base, and the depth and the width of the wire fixing groove are larger than the wire diameter of the wound coil; the height of the height control assembly is adjustable and is positioned right above the coil fixing assembly, the distance from the bottom surface of the height control assembly to the top surface of the coil base when the coil is wound is equal to the wire diameter of the wound coil, and the top surface of the coil shaft, the top surface of the coil base and the bottom surface of the height control assembly are all planes extending along the horizontal direction.

Description

Planar coil winding mechanism

Technical Field

The application belongs to the technical field of planar coils, and particularly relates to a planar coil winding mechanism.

Background

In cryophysics and superconductivity physics, a uniform magnetic field can be obtained by using a planar coil to provide a magnetic field environment or receive or send a signal. The flatness, the uniformity and the stability under the condition of severe temperature change of the coil have great influence on the uniformity of the magnetic field, and the larger the difference with an ideal coil is, the larger the errors of the magnetic field and signals are. Winding flat coils are typically die wound with a slot as the coil. In order to wind a planar coil with high flatness, the height of the slot of the winding die should match the wire diameter, and the height has high consistency. The uniformity and the stability under temperature change of the coil are related to the winding tension, the tension is small, the coil is not tightly attached, and the uniformity is not good; the tension is too high, the slit height may be changed to affect the flatness, and the wound coil has large stress and may be deformed under low-temperature impact.

In view of this, the utility model provides a novel planar coil winding mechanism.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present application provides a planar coil winding mechanism to ensure the flatness, uniformity and stability of the wound coil under severe temperature changes.

The number of the wire fixing grooves is more than two, the distance from each wire fixing groove to the center of the coil base is increased in sequence, and the wire grooves are not crossed on the top surface of the coil base.

Wherein, accuse high subassembly is including accuse high dish, smart accent dish, a plurality of pre-compaction bolt, a plurality of conical spring and a plurality of ball stud, and the vertical height-adjustable of accuse high dish, pre-compaction bolt and conical spring one-to-one just evenly connect accuse high dish and smart accent dish along the circumferencial direction, and ball stud is along the circumference evenly distributed of accuse high dish, and the top surface of the ball butt smart accent dish of ball stud behind the screw hole of screw in accuse high dish.

The planar coil winding mechanism further comprises a bottom plate, an upright post and an upper suspension plate, the bottom plate is horizontally arranged, the upright post is vertically arranged on the bottom plate, the upper suspension plate is fixed to the upright post and arranged in parallel with the bottom plate, a coil fixing assembly is arranged on the bottom plate, the height control assembly further comprises a height control disc screw rod, and the height control disc is fixed to the upper suspension plate through the height control disc screw rod and a matched nut of the height control disc screw rod.

Wherein, the fine tuning disc is made of transparent Teflon material.

The planar coil winding mechanism further comprises a rotary winding assembly, the rotary winding assembly comprises a bobbin and a driving assembly, and the driving assembly is used for driving the bobbin to rotate around the coil fixing assembly.

Wherein, drive assembly includes motor, motor support, motor output connection assembly and revolving stage, and the motor passes through the motor support fixed and its output shaft sets up along vertical direction, and motor output connection assembly is connected to the revolving stage, and revolving stage cavity sets up and is used for providing installation space for coil fixed subassembly, and the spool sets up on the revolving stage.

The coil fixing assembly further comprises a turntable stator and a connecting piece, the rotary winding assembly further comprises a turntable bearing, the turntable stator is arranged in the vertical direction, and the connecting piece is connected with the base positioning piece and the turntable stator; the inner ring of the turntable bearing is matched with the turntable stator, and the outer ring of the turntable bearing is matched with the inner circle of the turntable.

Wherein, the four-section cylindrical structure that the revolving stage stator set up for following the grow of extremely down diameter, four-section cylindrical structure is by supreme fixed part that is used for providing the support for coil fixed subassembly, the bearing support part that provides the shaft shoulder for the revolving stage bearing in proper order down, provides nested bearing nested portion for the revolving stage bearing to and the top cylinder.

The hollow center hole of the turntable is in a step shape with a small upper part and a big lower part, the inner diameter of the upper part of the center hole is matched with the diameter of a top end cylinder of the turntable stator, and the inner diameter of the lower part of the center hole is matched with the outer ring of the turntable bearing.

Wherein, the base setting element includes spacing portion of annular and a plurality of locking screw, radially sets up a plurality of locking holes along the spacing portion of annular, locking screw and locking hole one-to-one and in the locking hole screw in respectively, the internal diameter of the spacing portion of annular is greater than the external diameter of coil base and fixes the coil base through locking screw, the height that highly is greater than the spacing portion of annular of coil base.

Compared with the prior art, this application plane coil winding mechanism includes the fixed subassembly of coil and accuse high subassembly, specifically, the top surface of the coil axis of the fixed subassembly of coil, the top surface of coil base and the bottom surface of accuse high subassembly are the plane that extends along the horizontal direction, and satisfy the coil axis and set up in the center of coil base, the top surface of coil axis surpasss the top surface of coil base and the distance of the top surface of coil base to the bottom surface of accuse high subassembly equals the line footpath of coiling in the coiling process, guarantee the flatness in the coil coiling process, degree of consistency and the stability under the violent change of temperature through above-mentioned setting.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a perspective view of a preferred embodiment of a planar coil winding mechanism according to the present invention;

FIG. 2 is a perspective view of a preferred embodiment of the coil base of the planar coil winding mechanism of FIG. 1;

FIG. 3 is a schematic top view of the planar coil winding mechanism of FIG. 1 with the coil bobbin and coil base at the initial time of coil winding;

FIG. 4 is a top view of another preferred embodiment of the coil base of the planar coil winding mechanism of FIG. 1;

FIG. 5 is an enlarged perspective view of the base plate of the planar coil winding mechanism of FIG. 1;

fig. 6 is a bottom view of the upper suspension plate of the planar coil winding mechanism of fig. 1;

FIG. 7 is an enlarged perspective view of a height control assembly of the flat coil winding mechanism of FIG. 1;

FIG. 8 is a front view of the height control assembly of FIG. 7;

FIG. 9 is an enlarged perspective view of a base positioning member of the planar coil winding mechanism shown in FIG. 1;

FIG. 10 is a cross-sectional structural view of the base positioner of FIG. 9;

fig. 11 is an enlarged perspective view of a connecting member of the flat coil winding mechanism shown in fig. 1;

fig. 12 is an enlarged perspective view of a turntable stator of the planar coil winding mechanism shown in fig. 1;

fig. 13 is a sectional structural view of a turn table of the planar coil winding mechanism shown in fig. 1.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are all embodiments of the present application, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The utility model relates to a plane coil coiling mechanism includes the fixed subassembly of coil and accuse high subassembly at least, and the fixed subassembly of coil includes the coil shaft, coil base and base setting element, and the coil shaft is fixed to be set up in the center of coil base, and the top surface of coil shaft surpasss the top surface of coil base, should surpass the line footpath that the distance is not more than the coiling coil, and on the coil base was fixed in the base setting element, set up an at least line fixed slot on the tangent line direction of coil shaft along the top surface of coil base, the degree of depth and the width of line fixed slot were greater than the line footpath of coiling coil. The height control component is positioned right above the coil fixing component, the distance from the bottom surface of the height control component to the top surface of the coil base is equal to the wire diameter of the wound coil, and the top surface of the coil shaft, the top surface of the coil base and the bottom surface of the height control component are all planes extending along the horizontal direction. Through the technical scheme, the bottom surface of the height control component and the top surface of the coil fixing component are tightly attached to the metal wire when the metal wire is wound around the coil shaft in the coil winding process, and the flatness and the uniformity of the wound coil are further ensured.

Specifically, fig. 1 to 13 show a preferred embodiment of the planar coil winding mechanism of the present invention. In the preferred embodiment, the planar coil winding mechanism comprises a frame 1, a coil fixing component 2, a rotary winding component 3 and a height control component 4.

Referring to fig. 1, a frame 1 includes a bottom plate 11, a vertical column 12, an upper suspension plate 13, and a foot 14. The bottom plate 11 is horizontally arranged, the upright post 12 is vertically arranged on the bottom plate 11, the upper suspension plate 13 is fixed to the upright post 12, and the upper suspension plate 13 is parallel to the bottom plate 11. The number of the feet 14 is plural, and the feet are respectively arranged at the bottom corners of the bottom plate 11 and used for adjusting the levelness of the bottom plate 11.

Referring to fig. 5, two ends of the bottom plate 11 are respectively sunk from the top surface to form mounting

grooves

111 and 112, the bottoms of the

mounting grooves

111 and 112 are respectively provided with a plurality of through holes in a penetrating manner, the mounting groove 111 is used for limiting the upright post 12, and the bottom plate 11 and the upright post 12 are fixedly connected in a threaded connection manner. The mounting groove 112 is used to position a turntable stator 26 (to be described later in detail) of the coil fixing assembly 2.

Referring to fig. 6, mounting grooves 133 and large circular through holes 131 are respectively formed at positions corresponding to the

mounting grooves

111 and 112 of the bottom plate 11 at both ends of the upper suspension plate 13. The mounting groove 133 is provided with a plurality of through holes in a penetrating manner, the mounting groove 133 is used for positioning the upright post 12, and the upper suspension plate 13 and the upright post 12 are fixedly connected in a threaded connection manner. The center of the large circular through hole 131 is vertically opposite to the center of the mounting groove 111. The periphery of the large circular through-holes 131 is evenly distributed with three small circular through-holes 132 along the circumferential direction. The small round through hole 132 is used for connecting the height control assembly 4.

Referring to fig. 1, 2-5 and 9-12 together, the coil fixing assembly 2 includes a coil shaft 21, a coil base 22, a base positioning member 24, a connecting member 23 and a turntable stator 26.

In this embodiment, the coil base 22 is a concentric ring structure, and the inner diameter thereof is tightly fitted with the coil axis 21. In other embodiments, the coil base 22 and the coil shaft 21 may be a single-piece structure. For example, in some application environments, when the interior of the coil base needs to be penetrated by other parts, the coil base 22 and the coil shaft 21 can only be selected to be of an integral structure.

The top surface of the coil axis 21 exceeds the top surface of the coil base 22 by a distance not greater than the diameter of the wound coil. The top surface of the coil base 22 is provided with at least one wire fixing groove along the tangential direction of the coil axis 21, and the depth and the width of the wire fixing groove are larger than the diameter of the wound coil, so that the start point and the end point of winding are arranged in a layered manner with the plane of the wound coil, and the flatness of the wound coil is further ensured. A line fixed slot is applicable to the situation of single strand wire winding coil, and the design scheme of many wire casings can increase the strand number of the metal wire of winding coil. When many wire casing, the distance of each line fixed slot apart from coil base center increases in proper order, and each line fixed slot does not have alternately on the top surface of coil base. Preferably, the innermost wire fixation slot is tangential to the coil axis 21.

The coil base 22 is secured to a base locator 24. Specifically, the base positioning member 24 includes an annular limiting portion 242 and a plurality of locking screws 25, wherein a plurality of locking holes 241 are radially disposed along the annular limiting portion, and the locking screws 25 are in one-to-one correspondence with the locking holes 241 and are respectively screwed into the locking holes 241. The inner diameter of the annular stopper portion 24 is larger than the outer diameter of the coil base 22, and the coil base 22 is fixed by the locking screw 25, and the height of the coil base 22 is larger than the height of the annular stopper portion 242. In this embodiment, the number of the locking screws 25 and the number of the locking holes 241 are 3, and in other embodiments, the number of the locking screws 25 is not limited to this embodiment. In this embodiment, the base positioning element 24 further includes a base 243 disposed below the annular positioning portion 242 in addition to the annular limiting portion 242, and the base 243 is used for providing support for the coil base 22.

The connector 23 is disposed between the turntable stator 26 and the base positioning member 24, the connector 23 is fixed to the top of the turntable stator 26 by means of screw connection, and has a diameter larger than that of the top of the turntable stator 26, and the base positioning member 24 is fixed to the connector 23 by means of screw connection.

The turntable stator 26 is disposed on the mounting groove 112 of the base plate 11 in a vertical direction by means of screw coupling. The turntable stator 26 is a four-section cylindrical structure with the diameter increasing from top to bottom, and the four-section cylindrical structure sequentially comprises a fixing part 261 for supporting the coil fixing assembly 2, a bearing supporting part 262 for providing a shaft shoulder for the turntable bearing 37 of the rotating winding assembly 3, a bearing nesting part 263 for providing nesting for the turntable bearing 37, and a top end cylinder 264 from bottom to top.

The height of the height control component 4 is adjustable, the height control component is positioned right above the coil fixing component 2, and the distance from the bottom surface of the height control component to the top surface of the coil base 22 when the coil is wound is equal to the diameter of the wound coil. Referring to fig. 1, 7 and 8, the height control assembly 4 includes a height control plate screw 41, a height control plate 42, a fine adjustment plate 43, a pre-pressure bolt 44, a conical spring 45 and a ball stud 46.

The height control disk 42 is fixed to the upper suspension plate 13 through a height control disk lead screw 41 and a matched nut thereof. In this embodiment, the number of the height-controlling disc screws 41 is 3, and the height-controlling disc screws are connected with the small circular through holes 132 of the upper suspension plate 13 in a one-to-one correspondence manner. In other embodiments, the number of the small circular through holes 132 and the height control disk screw 41 is not limited by the present embodiment. The height of the height control disc 42 can be adjusted by the height control disc screw 41, and generally, after the coil winding is finished, the height of the height control disc 42 and the height of the fine adjustment disc 43 can be adjusted by driving the height control disc screw 41 to quickly take out the coil. When a new coil is wound, the height of the fine adjustment disc 43 can be preliminarily adjusted by preliminarily controlling the high disc lead screw 41.

The number of the pre-pressing bolts 44 is the same as that of the conical springs 45, and the pre-pressing bolts 44 correspond to the conical springs 45 one by one and are uniformly connected with the height control disc 42 and the fine adjustment disc 43 along the circumferential direction. In this embodiment, the number of the pre-pressing bolts 44 and the number of the conical springs 45 are 3, each conical spring 45 is sleeved on one pre-pressing bolt 44, the pre-pressing bolt 44 penetrates through a through hole formed in the height control plate 42 and then is screwed into a threaded hole formed in the fine adjustment plate 43, the conical spring 45 is always in a compression state, and two ends of the conical spring are respectively abutted on a head step of the pre-pressing bolt 44 and a top surface of the height control plate 42. In this embodiment, the number of the ball studs 46 is 3, the ball studs are uniformly distributed along the circumference of the height control plate 42, and the ball heads of the ball studs 46 are abutted to the top surface of the fine adjustment plate 43 after the ball studs 46 are screwed into the threaded holes formed in the height control plate 42. Due to the arrangement of the pre-pressing bolt 44, the conical spring 45 and the ball stud 46, the flatness of the fine adjustment disc 43 can be adjusted by screwing the ball stud 46, and fine adjustment can be realized on the basis of initial adjustment of the height of the fine adjustment disc 43. In other embodiments, the number of the preload bolts 44, the conical springs 45, and the ball studs 46 is not limited to this embodiment.

The adjusting distance of the height control disc screw 41 for adjusting the fine adjustment disc is far greater than the adjusting distance of the ball stud 46 for adjusting the fine adjustment disc 43, therefore, the height control disc screw 41 is used for quickly adjusting the height of the fine adjustment disc 43, and the ball stud 43 is used for continuously adjusting the distance and the parallelism between the bottom surface of the fine adjustment disc 43 and the top surface of the coil base 22 until the requirements are met when the distance between the bottom surface of the fine adjustment disc 43 and the top surface of the coil base 22 is close to the linear diameter.

Since the wire falls from the bobbin 31 to the gap between the coil base 22 during the winding process of the coil and needs to be coated with an adhesive such as epoxy glue, the fine tuning disc 43 is preferably made of transparent teflon to prevent the fine tuning disc 43 from being contaminated by the glue.

The rotary winding assembly 3 comprises a spool 31 and a drive assembly. The driving assembly is used for driving the bobbin 31 to rotate around the coil fixing assembly 2. In other embodiments, the driving assembly may be omitted and manual winding may be directly adopted, in which case some components in the coil fixing assembly 2, such as the turntable stator 26, the connecting member 23, etc., may also be omitted.

In this embodiment, the driving assembly includes a motor 32, a motor bracket 33, a motor output connection assembly, and a turntable 36. The motor 32 is fixed to the frame 1 by a motor bracket 33. The output shaft of motor 32 sets up along vertical direction, and motor output connection subassembly is connected to revolving stage 36, and revolving stage 36 cavity sets up and is used for providing installation space for coil fixing component 2, and spool 31 sets up on the revolving stage.

Further, in the present embodiment, the motor output connection assembly includes a belt 34 and a pulley 35. The pulley 35 is disposed on the output shaft of the motor 32, and the belt 34 is engaged in a belt groove concavely formed on the outer sides of the pulley 35 and the turntable 36. In other embodiments, the motor output connecting assembly can also be in a gear-rack transmission mode or the like.

Preferably, the rotary winding assembly 3 further comprises a turntable bearing 37, an inner ring of the turntable bearing 37 being fitted with the turntable stator, and an outer ring of the turntable bearing 37 being fitted with an inner circle of the turntable. Specifically, the hollow center hole of the turntable 36 is stepped from top to bottom, the upper inner diameter of the center hole matches with the diameter of the top end cylinder of the turntable stator, and the lower inner diameter of the center hole matches with the outer ring of the turntable bearing. In other embodiments, the turntable bearing 37 may be a flat bearing, and thus, the flat bearing may be disposed on the bottom plate 11, and therefore, the turntable stator 36 may also be omitted.

With the above arrangement, the axes of the large circular through hole 132 of the upper suspension plate 13, the height control plate 42, the fine adjustment plate 43, the coil base 22, the coil shaft 21, the base positioning member 23, the turntable stator 26, and the turntable bearing 37 are aligned.

In order to ensure sufficient tension of the wire during the winding process of the coil, the rotating winding assembly 3 preferably further includes a rubber rod 38 parallel to and in contact with the bobbin 31, and the rubber rod 38 and the bobbin 31 have friction therebetween, so that the bobbin 31 can rotate only under a certain amount of torque.

The bobbin 31 and the rubber bar 38 are rotatably disposed on the turntable 36, and specifically, the rotary winding assembly 3 further includes two lead screws 39, and the bobbin 31 and the rubber bar 38 are respectively connected to the turntable 36 through one lead screw 39.

The utility model discloses the working procedure of the coiling coil of planar coil coiling mechanism includes:

s1, adjusting the height control disc lead screw 41 to enable the bottom surface of the fine adjustment disc 43 to be in contact with the top surface of the coil shaft 21;

s2, adjusting the ball stud 46 to separate the bottom surface of the fine adjustment disc 43 from the top surface of the coil shaft 21 until the distance between the bottom surface of the fine adjustment disc 43 and the top surface of the coil base 22 is equal to the wire diameter of the wire, wherein in this step, the distance between the bottom surface of the fine adjustment disc 43 and the top surface of the coil base 22 is ensured to be equal everywhere;

s3, the bobbin 31 is installed, and the wire for winding the coil is wound on the bobbin 31. One end of the wire is installed in the wire fixing groove 221 of the coil base 22, and the end of the wire is tightly fixed so that it is not loosened by the tension of winding;

s4, winding a coil: the motor 32 rotates to drive the turntable 36 to rotate, and the wire is tensioned and continuously falls off from the bobbin 31 and is continuously wound on the coil base 22. The wire is coated with an adhesive such as epoxy glue in the gap between the wire and the coil base 22 from the bobbin 31, and the adhesive is brought to the coil base 22, so that the wound coil is integrated by the adhesive. It should be noted that, the matching problem of 3 directions such as motor steering, winding direction, spool steering and the like is involved, the motor steering can be adjusted by adjusting the anode and cathode of the power supply, the winding direction is related to the wire loading direction, the spool steering is also related to the installation direction, and the 3 directions can be adjusted to lead the mechanism to carry out winding smoothly.

In this step, the rotation speed of the motor 32 needs to be strictly controlled so as to observe the winding condition of the coil at any time. The wire winding tension drives the spool 31 to rotate against the friction of the rubber rod 39. The rubber rod 39 or the bobbin 31 may be sized to vary the friction between the rubber rod 39 and the bobbin 31.

Instead of using the motor 32 to rotationally drive the turntable 36, it is also possible to use a manually driven turntable 36. Further, it is also an implementation method to eliminate the turntable 36 and to use manual winding.

In order to obtain a coil structure that is stable at different temperatures, it is necessary to ensure that the adhesive and the wire have close coefficients of thermal expansion/contraction.

Compared with the prior art, this application plane coil winding mechanism includes coil fixed component 2 and accuse high subassembly 4, specifically, the top surface of coil shaft 21 of coil fixed component 2, the top surface of coil base 22 and the bottom surface of accuse high subassembly 4 are the plane that extends along the horizontal direction, and satisfy coil shaft 21 and set up in the center of coil base 22, the top surface of coil shaft 21 surpasss the top surface of coil base 22 and the distance of the top surface of coil base 22 to the bottom surface of accuse high subassembly 4 equals the line footpath of coiling in the coiling process, ensure the flatness in the coil coiling process through above-mentioned setting, degree of consistency and the stability under the violent change of temperature.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same. Although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: modifications of the technical solutions described in the embodiments or equivalent replacements of some technical features may still be made. Such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. A planar coil winding mechanism is characterized in that the planar coil winding mechanism comprises a coil fixing component and a height control component,

the coil fixing component comprises a coil shaft, a coil base and a base positioning piece, the coil shaft is positioned in the center of the coil base, the top surface of the coil shaft exceeds the top surface of the coil base, the exceeding distance is not more than the diameter of a wound coil, the coil base is fixed on the base positioning piece, at least one wire fixing groove along the tangential direction of the coil shaft is formed in the top surface of the coil base, and the depth and the width of the wire fixing groove are larger than the diameter of the wound coil;

the height of the height control assembly is adjustable and is located right above the coil fixing assembly, the distance from the bottom surface of the height control assembly to the top surface of the coil base when the coil is wound is equal to the wire diameter of the wound coil, and the top surface of the coil shaft, the top surface of the coil base and the bottom surface of the height control assembly are all planes extending along the horizontal direction.

2. The planar coil winding mechanism according to claim 1, wherein the number of the wire fixing grooves is two or more, the distance of each wire fixing groove from the center of the coil base increases in order, and the wire grooves do not intersect on the top surface of the coil base.

3. The planar coil winding mechanism according to claim 1, wherein the height control assembly comprises a height control disc, a fine adjustment disc, a plurality of pre-pressing bolts, a plurality of conical springs and a plurality of ball head bolts, the height of the height control disc is adjustable, the pre-pressing bolts are in one-to-one correspondence with the conical springs and are uniformly connected with the height control disc and the fine adjustment disc along the circumferential direction, the ball head bolts are uniformly distributed along the circumference of the height control disc, and the ball heads of the ball head bolts abut against the top surface of the fine adjustment disc after being screwed into the threaded holes of the height control disc.

4. The planar coil winding mechanism according to claim 3, further comprising a bottom plate, a vertical column and an upper suspension plate, wherein the bottom plate is horizontally disposed, the vertical column is vertically disposed on the bottom plate, the upper suspension plate is fixed to the vertical column and is parallel to the bottom plate, the coil fixing assembly is disposed on the bottom plate, the height control assembly further comprises a height control disc screw, and the height control disc is fixed to the upper suspension plate through the height control disc screw and a matching nut thereof.

5. A planar coil winding mechanism according to claim 3, wherein the fine tuning disc is made of a transparent teflon material.

6. A planar coil winding mechanism as claimed in claim 1 further comprising a rotary winding assembly including a bobbin and a drive assembly for driving the bobbin to rotate about the coil mounting assembly.

7. A planar coil winding mechanism according to claim 6, wherein the driving assembly comprises a motor, a motor support, a motor output connection assembly and a rotary table, the motor is fixed by the motor support, an output shaft of the motor is arranged in a vertical direction, the motor output connection assembly is connected to the rotary table, the rotary table is hollow and is used for providing an installation space for the coil fixing assembly, and the bobbin is arranged on the rotary table.

8. The planar coil winding mechanism as claimed in claim 7, wherein the coil fixing member further includes a turntable stator and a connecting member, the rotary winding member further includes a turntable bearing, the turntable stator is disposed in a vertical direction, and the connecting member connects the base positioning member and the turntable stator; the inner ring of the turntable bearing is matched with the turntable stator, and the outer ring of the turntable bearing is matched with the inner circle of the turntable.

9. A planar coil winding mechanism according to claim 8, wherein the turntable stator is a four-section cylindrical structure with a diameter that increases from top to bottom, and the four-section cylindrical structure sequentially comprises, from bottom to top, a fixing portion for supporting the coil fixing assembly, a bearing support portion for providing a shoulder for the turntable bearing, a bearing nesting portion for providing the turntable bearing with a nesting, and a top cylinder.

10. A planar coil winding mechanism according to claim 9, wherein the hollow center hole of the turntable is stepped in shape with a small upper part and a large lower part, the upper inner diameter of the center hole matches the diameter of the top end cylinder of the stator of the turntable, and the lower inner diameter of the center hole matches the outer ring of the bearing of the turntable.

11. The planar coil winding mechanism according to claim 9, wherein the base positioning member includes an annular limiting portion and a plurality of locking screws, a plurality of locking holes are radially formed in the annular limiting portion, the locking screws are in one-to-one correspondence with the locking holes and are respectively screwed into the locking holes, an inner diameter of the annular limiting portion is larger than an outer diameter of the coil base and fixes the coil base through the locking screws, and a height of the coil base is larger than a height of the annular limiting portion.