CN213150574U - Intelligent tensioning device for coil winding - Google Patents

Abstract

The utility model relates to the technical field of transformer winding, and discloses an intelligent tensioning device for coil winding, which comprises a shell and a pressing component, wherein the pressing component comprises a first driving piece, a spring, a first mounting seat, a first shaft and a cam; the fixed end of the first driving piece is fixedly connected with the shell, two ends of the spring are respectively fixedly connected with the movable end of the first driving piece and the first mounting seat, and the first shaft penetrates through the first mounting seat and is coaxially arranged with the cam; the cam is provided with a first arc-shaped groove used for passing through a copper wire along the circumferential direction of the cam; the plurality of pressing assemblies at least comprise a pair of pressing assemblies which are oppositely arranged in an opposite mode through the first arc-shaped groove; the shell is provided with a through hole. Through the arrangement of the technology, the surface of the copper wire is not damaged; meanwhile, the copper wire can be tensioned.

Description

Intelligent tensioning device for coil winding

Technical Field

The utility model relates to a transformer wire winding technical field specifically relates to an intelligent straining device of coil coiling.

Background

Because the manufacturing quality requirements of various industries on the transformer are higher and higher, especially the requirements on the coil are higher, the coil needs to be wound tightly in order to improve the requirements on short circuit resistance and the like. Wherein, the axial direction is close to the radial direction to realize zero margin. Due to the structural characteristics of the coil, most of the existing transformer industries adopt a horizontal winding machine to wind the coil, and the problems of the radial infirmity, the axial infirmity or the thinning of the section of a copper wire of the coil are caused, such as no tensioning device, incorrect tensioning position (wire frame locking) or improper (larger or smaller) control of the tensioning force.

CN 102468047B discloses a tension device for winding transformer coil, which is installed between a winding machine and a copper wire disc bracket, and the lower part of the tension device is a machine base, and is characterized in that: the upper part of the machine base is provided with a guide rail; the guide rail is provided with a movable guide rail sliding seat, a rolling shaft is arranged on the guide rail sliding seat, and rolling bearings are arranged on two side surfaces of the guide rail sliding seat so as to realize the positioning and movement of the guide rail sliding seat on the guide rail; the guide rail sliding seat is provided with a pressing device, a front supporting roller, a rear supporting roller and a support plate of the pressing device are fixed on a flat plate of the guide rail sliding seat, a front pressing roller, a rear pressing roller and a pressing plate of the pressing device are connected with a front cylinder, a rear cylinder and a main cylinder, and the front cylinder, the rear cylinder and the main cylinder are fixed on a vertical plate of the pressing device; the vertical plate of the pressing device is connected with the front cylinder, the rear cylinder, the main cylinder, the front compression roller, the rear compression roller and the pressing plate in a turnover structure, and the front cylinder, the rear cylinder and the main cylinder are respectively provided with an air path controlled by a pressure gauge and a switch. The utility model discloses a through adopting pneumatics to compress tightly, realize that the copper conductor is taut and lean on tightly, reached the tight real purpose of coil.

However, the utility model discloses a compress tightly the copper wire through extension board and clamp plate and master cylinder, the copper wire is pulled out closing device's process outside surface and extension board and clamp plate and produces the friction, especially has under the condition of the pressure that compresses tightly, and the surface of copper wire can receive great wearing and tearing, and then the outward appearance of the product of influence influences the performance of product even.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an intelligence tensioning equipment of coil coiling, this utility model can solve the problem that exists among the prior art: in the winding process, the outer surface of the copper wire can be damaged in the process of pressing the copper wire.

In order to achieve the above object, the present invention provides an intelligent tensioning device for coil winding, which comprises a housing and at least one pair of pressing components, wherein each pressing component comprises a first driving member, a spring, a first mounting seat, a first shaft and a cam;

the fixed end of the first driving piece is fixedly connected with the shell, two ends of the spring are respectively fixedly connected with the movable end of the first driving piece and the first mounting seat, and the first shaft penetrates through the first mounting seat and is coaxially arranged with the cam;

the cam is provided with a first arc-shaped groove used for passing through a copper wire along the circumferential direction of the cam;

any pair of the pressing assemblies comprises a pair of pressing assemblies oppositely arranged in a mode that the first arc-shaped grooves are opposite;

the shell is provided with a through hole for the copper wire to pass through.

Through the arrangement of the technology, the compressing assembly adopts a cam mode, and the rotation of the cam is adapted to the movement of the copper conductor, so that the surface of the copper conductor is not damaged; at the same time, during rotation of the cam, the change in the distance between its periphery and the first shaft translates the friction between the cam and the copper wire into a resistance to rotation of the cam against the spring, causing the copper wire to be tensioned.

Furthermore, a friction ring which is adaptive to the shape of the first arc-shaped groove is arranged on the first arc-shaped groove.

Further, the periphery of spring is provided with guide structure, guide structure includes urceolus and inner tube, the urceolus with the stiff end fixed connection of first driving piece, the inner tube with first mount pad fixed connection, the urceolus cover is located can follow on the inner tube the axial displacement of inner tube.

Furthermore, the intelligent tensioning device for winding the coil further comprises a cam synchronous steering structure and a fixing structure;

the cam is provided with an annular groove surrounding the circumferential direction of the first shaft, two ends of the cam synchronous steering structure are respectively in sliding connection with the opposite annular groove on the cam, and two ends of the fixed structure are respectively in fixed connection with the cam synchronous steering structure and the first mounting seat.

Further, the synchronous steering structure comprises a connecting rod, a box body, a rotating shaft and a gear;

the rotating shaft penetrates through the box body, the gear and the rotating shaft are coaxially arranged, and the gear and the rotating shaft are both positioned in the box body; one end of the connecting rod is connected with the annular groove in a sliding mode, a plurality of gear teeth are arranged at the other end of the connecting rod, and the connecting rod is meshed with the gear;

the axis of the rotating shaft is parallel to the axis of the first shaft. Furthermore, the cross section of the annular groove is in a convex shape, and one end, matched with the annular groove, of the connecting rod is connected with a roller.

Further, the fixing structure includes a fixing tube and a sliding rod;

the fixed pipe is fixedly connected with the first mounting seat, a sliding space is formed in the fixed pipe, one end of the sliding rod is fixedly connected with the box body, and the other end of the sliding rod is located in the sliding space.

Furthermore, the intelligent coil winding tensioning device further comprises at least one copper wire leveling assembly, the copper wire leveling assembly comprises a second driving piece and two groups of guide pieces, and the guide pieces comprise a second mounting seat, a second shaft and a guide wheel;

the fixed end of the second driving piece is fixedly connected with the shell, the movable end of the second driving piece is fixedly connected with the second mounting seat of one of the guide pieces, and the second shaft penetrates through the second mounting seat and is coaxially arranged with the guide wheel;

a second arc-shaped groove is formed in the guide wheel along the circumferential direction of the guide wheel; the two groups of guide pieces are oppositely arranged in a mode that the second arc-shaped grooves are opposite.

Furthermore, the intelligent tensioning device for winding the coil further comprises a pressure sensor arranged between the second driving piece and the second mounting seat and a controller electrically connected with the first driving piece, the second driving piece and the pressure sensor.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of an intelligent tension device for winding a coil according to the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is a right side view of FIG. 1;

FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;

fig. 6 is an enlarged view of fig. 5 at B.

Description of the reference numerals

1 housing 2 compression assembly

21 first driver 22 spring

23 first mounting seat 24 first shaft

25 cam 26 first arc-shaped groove

31 outer cylinder and 32 inner cylinder

41 connecting rod 42 box

43 rotating shaft 44 gear

51 fixed tube 52 sliding rod

Second driving member of 6 copper wire leveling assembly 61

62 second mounting base 63 second shaft

64 guide wheel 65 second arc-shaped groove

27 ring groove 45 roller

Detailed Description

The following describes the embodiments of the present invention in detail. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.

In order to solve the problems existing in the background art: in the winding process, the outer surface of the copper wire can be damaged in the process of compressing the copper wire, as shown in fig. 1-6, the utility model provides an intelligent tensioning device for winding a coil, which comprises a shell 1 and at least one pair of compressing components 2, wherein each compressing component 2 comprises a first driving piece 21, a spring 22, a first mounting seat 23, a first shaft 24 and a cam 25;

the fixed end of the first driving member 21 is fixedly connected with the housing 1, two ends of the spring 22 are respectively fixedly connected with the movable end of the first driving member 21 and the first mounting seat 23, and the first shaft 24 is arranged on the first mounting seat 23 in a penetrating manner and is coaxial with the cam 25;

the cam 25 is provided with a first arc-shaped groove 26 for passing through a copper wire along the circumferential direction;

any pair of the pressing assemblies 2 comprises a pair of pressing assemblies 2 which are oppositely arranged in a manner that the first arc-shaped grooves 26 are opposite. In the embodiment shown in fig. 1, the number of the pressing assemblies 2 is 2 groups, i.e., 1 pair.

Through the technical arrangement, the compressing assembly 2 adopts the mode of the cam 25, and the rotation of the cam 25 is adapted to the movement of the copper conductor, so that the surface of the copper conductor cannot be damaged; at the same time, during the rotation of the cam 25, the change in the distance between its periphery and the first shaft 24 translates the friction between the cam 25 and the copper wire into a resistance of the cam 25 against the rotation of the spring 22, that is, the force of tightening the copper wire is translated by the cam 25 into a force of compression of the spring 22, so that the copper wire is tightened.

Preferably, the peripheral edge of the cam 25 forms an included angle of 90-120 degrees with the shortest straight line and the longest straight line from the first shaft 24, and the arrangement can prolong the time for gradually increasing the rotation resistance of the cam 25 and shorten the time for gradually decreasing the rotation resistance of the cam 25, so that the tensioning effect is better when the copper wire is wound.

Preferably, a housing cover is detachably arranged on the housing 1, and the housing cover is made of a transparent material; it should be noted that the housing cover is not shown in the drawings in order to clearly demonstrate the structure through the drawings.

It should be noted that the housing 1 is provided with a through hole through which the copper wire can pass.

The lower surface of the shell 1 is provided with a sliding guide rail groove, and the sliding guide rail is vertical to the through hole; the sliding guide groove can be matched with the sliding guide for driving the utility model to move back and forth as shown in figure 2, so that the copper wire circle is close to each other.

In order to ensure that the friction force between the copper wire and the cam 25 is large enough, a friction ring which is adaptive to the shape of the first arc-shaped groove 26 is arranged on the first arc-shaped groove; preferably, the material of the friction ring comprises rubber.

In order to deform the spring 22 only in the vertical direction and limit the deformation of the spring 22 in other directions, preferably, a guide structure is disposed on the outer periphery of the spring 22, the guide structure includes an outer cylinder 31 and an inner cylinder 32, the outer cylinder 31 is fixedly connected to the fixed end of the first driving element 21, the inner cylinder 32 is fixedly connected to the first mounting seat 23, and the outer cylinder 31 is sleeved on the inner cylinder 32 and can move along the axial direction of the inner cylinder 32; further, in order to prevent the spring 22 from twisting, it is preferable that the outer cylinder 31 is provided with a guide bar, and the inner cylinder 32 is provided with a guide groove having a shape corresponding to the guide bar, and the guide bar is fitted into the guide groove.

In order to make the distance between the contact point of the two cams 23 opposite to the first annular groove and the conducting wire and the respective first shaft 24 the same, in a preferred case, the intelligent tensioning device for winding the coil further comprises a cam synchronous steering structure and a fixed structure;

the cam 25 is provided with an annular groove 27 surrounding the circumference of the first shaft 24, two ends of the cam synchronous steering structure are respectively connected with the opposite annular groove 27 on the cam 25 in a sliding manner, and two ends of the fixed structure are respectively fixedly connected with the cam synchronous steering structure and the first mounting seat 23.

As a preferred embodiment of the synchronous steering structure, the synchronous steering structure includes a connecting rod 41, a case 42, a rotating shaft 43, and a gear 44;

the rotating shaft 43 is inserted into the box body 42, the gear 44 is coaxially arranged with the rotating shaft 43, and both the gear 44 and the rotating shaft 43 are located in the box body 42; one end of the connecting rod 41 is slidably connected with the annular groove 27, a plurality of gear teeth are arranged at the other end of the connecting rod 41, and the connecting rod 41 is meshed with the gear 44;

the axis of the rotating shaft 43 is parallel to the axis of the first shaft 24;

it should be noted that, in the above technical solution, the connecting rods 41 connecting the two cams 25 are respectively engaged with two sides of the gear 44, so that the movement of the two connecting rods 41 is performed simultaneously and equidistantly, thereby limiting the two cams 25, and the distance between the point where the two cams 25 contact the copper conductor and the first shaft is equal; this arrangement therefore ensures that the two cams 25 operate in the same state, thereby facilitating control by the subsequent controller.

As a preferred embodiment of the sliding connection, the cross section of the annular groove 27 is "convex", and one end of the connecting rod 41, which is matched with the annular groove 27, is connected with a roller 45; this arrangement can reduce the frictional force between the connecting rod 41 and the annular groove 27, thereby making the connecting rod 41 more sensitively sense the change in the distance from the point where the two cams 25 contact the copper wire to the first shaft.

In order to keep the synchromesh stationary in the transverse dimension, the fixed structure preferably comprises a fixed tube 51 and a sliding rod 52;

the fixed pipe 51 is fixedly connected with the first mounting seat 23, a sliding space is arranged in the fixed pipe 51, one end of the sliding rod 52 is fixedly connected with the box body 42, and the other end of the sliding rod 52 is positioned in the sliding space; the slide rod 52 can slide linearly in the slide space; through the arrangement of the technical scheme, the dimension of the synchronous steering structure in the transverse direction is stable, and the synchronous steering structure can adapt to the distance change between the two cams 25 in the longitudinal direction, so that the process that the distance from the contact point of the cam 25 and the copper wire to the first shaft 24 is changed continuously can be adapted.

In order to ensure that the coil is in a straight state in the device, so that the copper wires can be wound more neatly and tightly, under an optimal condition, the intelligent tensioning device for winding the coil further comprises at least one copper wire leveling component 6, preferably, in the embodiment, the number of the copper wire leveling components 6 is 4, the 4 copper wire leveling components 6 are respectively arranged on two sides of the compression component 2, and the second mounting seat 62 can limit two sides of the first mounting seat 23 so as to ensure the smooth operation of the compression component 2; the copper conductor leveling assembly 6 comprises a second driving member 61 and two sets of guide members, wherein the guide members comprise a second mounting seat 62, a second shaft 63 and a guide wheel 64;

the fixed end of the second driving element 61 is fixedly connected with the housing 1, the movable end of the second driving element 61 is fixedly connected with the second mounting seat 62 of one of the guiding elements, and the second shaft 63 is arranged on the second mounting seat 62 in a penetrating manner and is coaxial with the guide wheel 64;

a second arc-shaped groove 65 is formed in the guide wheel 64 along the circumferential direction; the two sets of guides are arranged in an opposite manner with respect to the second arc-shaped slot 65; preferably, a friction ring adapted to the shape of the second arc-shaped groove 65 is arranged on the second arc-shaped groove; preferably, the material of the friction ring comprises rubber.

It should be noted that, the first driving member 21 and the second driving member 61 are air cylinders.

The utility model discloses can be according to the extension distance control first driving piece 21 of second driving piece 61 flexible so that the copper conductor through cam 25 and leading wheel 64 is in the horizontality.

Through the working process, the copper wire is always in a straight state in the intelligent tensioning device for winding the coil, so that the tightness of the copper wire during winding is improved.

The intelligent tensioning device for winding the coil further comprises a pressure sensor arranged between the second driving piece 61 and the second mounting seat 62 and a controller electrically connected with the first driving piece 21, the second driving piece 61 and the pressure sensor, and the specific working process is as follows:

s1: after the copper wire penetrates through the cam 25 and the guide wheel 64, the controller controls the movable end of the second driving piece 61 to extend;

s2: the movable end of the second driving element 61 extends to the surface of the copper wire and then continues to be driven until the pressure detected by the pressure sensor reaches a preset value;

s3: the pressure sensor transmits a signal to the controller, and the controller stops driving of the second driving member 61;

s4: the controller calculates the telescopic distance of the first driving piece 21 according to the extended distance of the second driving piece 61; it should be noted that the distance of elongation of the second driving member 61 represents the diameter of the copper wire;

s5: the controller controls one of the first driving members 21 of the pair of pressing assemblies 2 to adjust the telescopic length thereof so that the copper conductor is in a horizontal state.

Preferably, the controller adopts a PLC controller;

it is further noted that the controller simultaneously adjusts the first driving member 21 of the pair of pressing assemblies 2 and thus the initial compression degree of the spring 22, so that the elastic force of the spring 22 can be increased or decreased, the resistance to the rotation of the cam 25 can be increased or decreased, and the final result is a change in the force of tightening the copper wire.

The above detailed description describes the preferred embodiments of the present invention, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention can be within the scope of the present invention, and can be right to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims (9)

1. The intelligent tensioning device for winding the coil is characterized by comprising a shell (1) and at least one pair of pressing components (2), wherein each pressing component (2) comprises a first driving piece (21), a spring (22), a first mounting seat (23), a first shaft (24) and a cam (25);

the fixed end of the first driving piece (21) is fixedly connected with the shell (1), the two ends of the spring (22) are respectively and fixedly connected with the movable end of the first driving piece (21) and the first mounting seat (23), and the first shaft (24) penetrates through the first mounting seat (23) and is coaxially arranged with the cam (25);

the cam (25) is provided with a first arc-shaped groove (26) for passing through a copper wire along the circumferential direction of the cam;

any pair of the pressing assemblies (2) comprises a pair of pressing assemblies (2) which are oppositely arranged in a mode that the first arc-shaped grooves (26) are opposite;

the shell (1) is provided with a through hole for the copper wire to pass through.

2. The intelligent tensioning device for winding the coil as defined in claim 1, wherein the first arc-shaped groove (26) is provided with a friction ring adapted to the shape of the first arc-shaped groove.

3. The intelligent coil winding tensioning device as claimed in claim 1, wherein a guide structure is arranged on the outer periphery of the spring (22), the guide structure comprises an outer cylinder (31) and an inner cylinder (32), the outer cylinder (31) is fixedly connected with the fixed end of the first driving member (21), the inner cylinder (32) is fixedly connected with the first mounting seat (23), and the outer cylinder (31) is sleeved on the inner cylinder (32) and can move along the axial direction of the inner cylinder (32).

4. The intelligent coil-winding tensioning device as claimed in claim 1, wherein the intelligent coil-winding tensioning device further comprises a cam synchronous steering structure and a fixing structure;

the cam (25) is provided with a circumferential annular groove (27) surrounding the first shaft (24), two ends of the cam synchronous steering structure are respectively in sliding connection with the opposite annular groove (27) on the cam (25), and two ends of the fixed structure are respectively in fixed connection with the cam synchronous steering structure and the first mounting seat (23).

5. The intelligent coil-winding tensioning device according to claim 4, wherein the synchronous steering structure comprises a connecting rod (41), a box body (42), a rotating shaft (43) and a gear (44);

the rotating shaft (43) is arranged in the box body (42) in a penetrating way, the gear (44) and the rotating shaft (43) are coaxially arranged, and the gear (44) and the rotating shaft (43) are both positioned in the box body (42); one end of the connecting rod (41) is connected with the annular groove (27) in a sliding mode, a plurality of gear teeth are arranged at the other end of the connecting rod (41), and the connecting rod (41) is meshed with the gear (44);

the axis of the rotating shaft (43) is parallel to the axis of the first shaft (24).

6. The intelligent coil-winding tensioning device as claimed in claim 5, wherein the annular groove (27) is convex in cross section, and a roller (45) is connected to one end of the connecting rod (41) matched with the annular groove (27).

7. The intelligent tensioning device for coil winding according to claim 5, characterized in that the fixed structure comprises a fixed tube (51) and a sliding rod (52);

the fixed pipe (51) is fixedly connected with the first mounting seat (23), a sliding space is formed in the fixed pipe (51), one end of the sliding rod (52) is fixedly connected with the box body (42), and the other end of the sliding rod (52) is located in the sliding space.

8. The intelligent tensioning device for coil winding according to any one of claims 1 to 7, characterized in that the intelligent tensioning device for coil winding further comprises at least one copper wire leveling component (6), wherein the copper wire leveling component (6) comprises a second driving member (61) and two sets of guiding members, and the guiding members comprise a second mounting seat (62), a second shaft (63) and a guiding wheel (64);

the fixed end of the second driving piece (61) is fixedly connected with the shell (1), the movable end of the second driving piece (61) is fixedly connected with the second mounting seat (62) of one of the guide pieces, and the second shaft (63) is arranged on the second mounting seat (62) in a penetrating manner and is coaxial with the guide wheel (64);

a second arc-shaped groove (65) is formed in the guide wheel (64) along the circumferential direction of the guide wheel;

the two sets of guide members are arranged in an opposed manner with the second arcuate slots (65) facing each other.

9. The intelligent tensioning device for coil winding according to claim 8, further comprising a pressure sensor disposed between the second driving member (61) and the second mounting seat (62), and a controller electrically connected to the first driving member (21), the second driving member (61) and the pressure sensor.

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