CN107993835A - Transformer Coil Winding Machine - Google Patents

Abstract

The present invention discloses a transformer coil winding machine, comprising a frame, a horizontally arranged main shaft, and a first stepper motor for driving the main shaft to rotate. The frame is also provided with a wire feeding mechanism, a wire end pulling mechanism, a wire end pressing mechanism, and a wire end cutting mechanism. The transformer coil winding machine of the present invention can automatically press the wire ends of the raw wire material onto the inner sleeve of the coil through the wire feeding mechanism, the wire end pulling mechanism, and the wire end pressing mechanism, and after the winding is completed, the wire end can be cut off by the wire end cutting mechanism, thereby replacing the manual work of fixing the wire ends and cutting off the wire ends, and the winding machine has a higher degree of automation and higher production efficiency.

Description

Transformer Coil Winding Machine

technical field

The invention relates to the technical field of transformers, in particular to a winding machine for small transformer coils.

Background technique

Small transformers are widely used in various household appliances, and small transformers are also composed of coils and iron cores.

The coil of a small transformer is wound by a winding machine. When using the existing winding machine to wind the transformer coil, it is necessary to manually fix the end of the copper wire on the coil fixture. After the coil is wound, it is necessary to manually cut off the end of the wire. , making the production efficiency of the coil lower.

Contents of the invention

In view of this, the purpose of the present invention is to provide a transformer coil winding machine to solve the technical problem that the existing winding machine needs to manually fix the wire head and cut the wire tail, resulting in low coil winding efficiency.

The transformer coil winding machine of the present invention includes a frame, a horizontally arranged main shaft, and a first stepping motor for driving the main shaft to rotate. The frame is also provided with a wire feeding mechanism, a thread end pulling mechanism, and a thread end pressing mechanism. Mechanism, and thread tail cutting mechanism;

The wire feeding mechanism includes an L-shaped bracket composed of a horizontal bar and a vertical bar, a first linear driver for driving the L-shaped bracket to move along a direction parallel to the main shaft, a magnetic damper arranged on the vertical bar, and a magnetic damper arranged on the magnetic resistance The wire reel on the rotating shaft of the nipper, the second stepping motor arranged on the end of the cross bar, the driving nip roller arranged on the rotor shaft of the second stepping motor, vertically connected on the end of the cross bar and protruding downward Two guide columns, a slider that slides up and down with the guide column, a roller shaft fixedly connected to the slider, a driven pinch roller that rotates with the roller shaft, a horizontal connecting plate fixed on the lower end of the guide column, and a The third stepper motor on the bottom surface of the horizontal connecting plate, the first screw rod parallel to the guide column and driven by the third stepping motor, the first screw rod is threadedly matched with the slider, and the horizontal connecting plate is also provided with There are lead holes;

The axial directions of the driving nip roller and the driven nip roller are parallel to the axial direction of the main shaft, and the driving nip roller is provided with an annular groove for positioning the raw material wire; when the raw material wire is pinched, the active nip roller The edge of the nip roller is embedded in the annular groove;

The thread pulling mechanism includes a first cylinder vertically fixed on the frame, a connecting rod vertically fixed on the piston rod end of the first cylinder, a second cylinder horizontally fixed on the connecting rod, and a connecting rod connected to the second cylinder. The vertical conduit at the end of the cylinder body, and the trumpet-shaped tube arranged at the upper end of the vertical conduit for introducing the raw material wire, the upper end of the bell-shaped tube is facing the lead wire hole, and the side of the vertical conduit is provided with a The side hole into which the end of the piston rod of the second cylinder extends;

The thread end pressing mechanism includes a guide rod vertically arranged on the main shaft, a pressing plate arranged on the guide rod, a bolt used to push the pressing plate to move along the guide rod, a spring arranged on the guide rod to push the pressing plate back to its original position, An electric wrench for turning the bolts, a first support plate supporting the electric wrench, and a second linear driver arranged on the frame for driving the first support plate to move radially along the main shaft, and the bolts are threadedly matched with the main shaft;

The tail thread cutting mechanism includes a second support plate, electric scissors arranged on the upper end of the second support plate, and a third linear driver arranged on the frame for driving the second support plate.

Further, the first linear driver includes a fourth stepping motor, a No. 1 screw driven by the fourth stepping motor, and a No. 1 guide rod parallel to the No. 1 screw, and the No. 1 screw is connected to the main shaft Arranged in parallel, the lower end of the vertical rod of the L-shaped bracket is arranged on the No. 1 screw rod and the No. 1 guide rod;

The second linear driver includes a fifth stepping motor, a No. 2 screw driven by the fifth stepping motor, and a No. 2 guide rod parallel to the No. 2 screw. The lower end of the first support plate is arranged on the second On the No. 2 screw and the No. 2 guide rod, the No. 2 screw is arranged perpendicular to the main shaft;

The third linear driver includes a sixth stepper motor, a No. 3 screw driven by the sixth stepper motor, a No. 3 guide rod parallel to the No. 3 screw, and is arranged on the No. 3 screw and the No. 3 guide rod The slide seat, the No. 4 screw rod and the No. 4 guide rod arranged on the slide seat, and the seventh stepping motor driving the No. 4 screw rod, the No. 3 screw rod is arranged in parallel with the main shaft, and the No. 4 screw rod Arranged perpendicular to the main axis.

Beneficial effects of the present invention:

The transformer coil winding machine of the present invention can automatically compress the thread end of the raw material wire to the coil inner sleeve through the provided wire feeding mechanism, thread end pulling mechanism and thread end pressing mechanism, and after the winding is completed, it can also The thread tail is cut by the thread tail cutting mechanism, so as to replace the manual work of fixing the thread head and cutting the thread tail. The winding machine has a higher degree of automation and higher production efficiency.

Description of drawings

Fig. 1 is the three-dimensional structural schematic diagram of the positive side of the transformer coil winding machine in the embodiment;

Fig. 2 is a schematic diagram of the backside three-dimensional structure of the transformer coil winding machine in the embodiment;

Figure 3 is an enlarged schematic view of part P in Figure 1;

Fig. 4 is a partial sectional structural schematic diagram of a thread end pressing mechanism;

Fig. 5 is the enlarged schematic diagram of part K in Fig. 1;

Fig. 6 is a three-dimensional structural schematic diagram of a thread tail cutting mechanism;

Fig. 7 is a schematic diagram of the three-dimensional structure of the combination of the second linear driver and the electric wrench.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

As shown in the figure, the transformer coil winding machine in this embodiment includes a frame 1, a horizontally arranged main shaft 2, and a first stepping motor 3 that drives the main shaft to rotate. The frame is also provided with a wire feeding Mechanism, thread pulling mechanism, thread pressing mechanism, and thread tail cutting mechanism.

The wire feeding mechanism includes an L-shaped bracket 4 composed of a cross bar 41 and a vertical bar 42, a first linear driver 5 that drives the L-shaped bracket to move in a direction parallel to the main shaft, and a magnetic damper 6 arranged on the vertical bar , the wire reel 7 arranged on the rotating shaft of the magnetic damper, the second stepping motor 8 arranged on the end of the cross bar, the driving nip roller 9 arranged on the rotor shaft of the second stepping motor, vertically connected to the cross bar Two guide posts 10 protruding downwards on the ends, a slider 11 that slides up and down with the guide posts, a roller shaft 12 fixedly connected to the slider, a driven pinch roller 13 that rotates with the roller shaft, a fixed The horizontal connecting plate 14 on the lower end of the guide column, the third stepping motor 15 arranged on the bottom surface of the horizontal connecting plate, the first screw mandrel 16 parallel to the guiding column and driven by the third stepping motor, the first wire The rod is threadedly matched with the slide block, and a lead hole 17 is also arranged on the horizontal connecting plate.

The axial directions of the driving nip roller and the driven nip roller are parallel to the axial direction of the main shaft, and the driving nip roller is provided with an annular groove 18 for positioning the raw material wire; when the raw material wire is pinched, the The edge of the driving nip roll is embedded in the annular groove.

Described thread pulling mechanism comprises the first air cylinder 19 that is vertically fixed on the frame, the connecting rod 20 that is vertically fixed on the piston rod end of the first air cylinder, the second air cylinder 21 that is horizontally fixed on the connecting rod, is connected on The vertical conduit 22 at the end of the second cylinder block and the trumpet-shaped pipe 23 that is arranged on the vertical conduit upper end for introducing the raw material wire rod, the upper end of the bell-shaped pipe is facing the lead hole, and the side of the vertical conduit A side hole for the end of the piston rod of the second cylinder is provided on the top.

The thread end pressing mechanism comprises a guide rod 24 vertically arranged on the main shaft, a pressing plate 25 arranged on the guide rod, a bolt 26 for pushing the pressing plate to move along the guide rod, a bolt 26 arranged on the guide rod for pushing the pressing plate back to its original position. Spring 27, the electric wrench 28 that is used to twist bolt, the first support plate 29 that supports electric wrench, be arranged on the frame and be used to drive the second linear driver 30 that the first support plate moves radially along the main shaft, described bolt Fits with spindle thread.

The tail thread cutting mechanism includes a second support plate 31 , an electric scissors 32 arranged on the top of the second support plate, and a third linear driver 33 arranged on the frame for driving the second support plate.

In this embodiment, the first linear driver 5 includes a fourth stepping motor 51, a No. 1 screw 52 driven by the fourth stepping motor 51, and a No. 1 guide rod 53 parallel to the No. 1 screw 52 , the lower end of the vertical rod of the L-shaped bracket 4 is arranged on the No. 1 screw rod 52 and the No. 1 guide rod 53 . Of course, in different embodiments, the first linear driver 5 can also be a linear motor, or a combination of a cylinder and a guide rail, etc.

The second linear driver 30 includes a fifth stepper motor 301, a No. 2 screw 302 driven by the fifth stepper motor, and a No. 2 guide rod 303 parallel to the No. 2 screw 302. The first support plate The lower end of 29 is arranged on No. 2 screw mandrel 302 and No. 2 guide rod 303. Of course, in different embodiments, the second linear driver 30 can also be a linear motor, or a combination of a cylinder and a guide rail, and the like.

Described the 3rd linear driver 33 comprises the 6th stepper motor 331, the No. 3 screw mandrel 332 driven by the 6th stepper motor, the No. 3 guide rod 333 parallel with the No. 3 screw mandrel, be arranged on the No. 3 screw mandrel and the No. 3 screw mandrel. The slide seat 334 on the No. guide rod, No. 4 screw mandrel 335 and No. 4 guide rod 336 that are arranged on the slide seat, and the seventh stepper motor 337 that drives the No. 4 screw mandrel, the No. 3 screw mandrel and the main shaft The axes are parallel, and the No. 4 screw is perpendicular to the axis of the main shaft. Of course, in different embodiments, the third linear driver 33 can also be a combination of two linear motors, or a combination of a cylinder and a guide rail.

The working process of the transformer coil winding machine in the present embodiment is as follows:

In the first step, the second stepping motor 8 in the wire feeding mechanism drives the driving nip roller to rotate, and the driving nip roller and the driven nip roller convey the raw material wire downward, so that the raw material wire passes through the lead hole 17 . When winding the first coil, it is necessary to manually pass the raw material wire through the lead hole 17. When winding subsequent coils, since the raw material wire is always in the lead hole 17, manual threading is not required.

In the second step, the piston rod of the first cylinder 19 in the thread pulling mechanism stretches out, and the trumpet-shaped pipe 23 is raised upwards, so that the thread ends passing through the lead hole 17 enter the vertical conduit 22 through the trumpet-shaped pipe, and then The piston rod of the second air cylinder 21 stretches into the vertical conduit 22 to compress the end of thread. Then the piston rod of the first air cylinder 19 retracts a certain distance, and the raw material wire is pulled down between the pressing plate and the main shaft of the thread end pressing mechanism.

In the third step, the second linear driver 30 in the thread end pressing mechanism drives the electric wrench 28 to move to the bolt 26, and at the same time the electric wrench starts, the electric wrench will turn the bolt to rotate, and the bolt rotates to push the pressure plate to press the thread end on the main shaft On the coil cover 34. The driving motor of the electric wrench in this embodiment is a servo motor, which has good controllability and can accurately control the number of rotations of the bolt, and thus can accurately control the force of pressing the thread end.

In the fourth step, the piston rod of the second cylinder 21 in the thread pulling mechanism is retracted to release the thread, while the piston rod of the first cylinder 19 is retracted back to its original position.

In the fifth step, the third stepper motor 15 in the wire feeding mechanism drives the first lead screw to rotate, so that the slider 11 moves down, so that the raw material wire is separated from the driving nip roller, and the driven nip roller becomes a guide wheel at this time. At the same time, the magnetic damper 6 in the wire feeding mechanism acts to apply a set tension force to the raw wire to ensure the coil winding quality.

In the sixth step, the first stepper motor 3 drives the main shaft to rotate, and at the same time, the first linear driver 5 drives the L-shaped support 4 to reciprocate, so that the raw material wire is wound on the coil sleeve; in the specific implementation, the first stepper motor 3 The rotational speed and the moving speed of the L-shaped bracket 4 are set according to the coil specification.

In the seventh step, after the coil winding is completed, the third linear driver 33 drives the second support plate to move, so that the electric scissors 32 move to the end of the line, and then the electric scissors work to cut the end of the line.

In the eighth step, the wound coil is removed from the coil sleeve, that is, the winding operation of one coil is completed. Repeat steps one to eight to complete the coil winding operation continuously.

The transformer coil winding machine in this embodiment can automatically compress the thread ends of the raw material wires onto the inner sleeve of the coil through the provided wire feeding mechanism, thread end pulling mechanism and thread end pressing mechanism, and after the winding is completed, The thread tail can also be cut by the thread tail cutting mechanism, so as to replace the manual work of fixing the thread head and cutting the thread tail. The winding machine has a higher degree of automation and higher production efficiency.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (2)

1. a kind of transformer coil coil winding machine, including rack, further include horizontally disposed main shaft and drive shaft rotating One stepper motor, it is characterised in that：Be additionally provided with the rack thread feeding mechanism, the end of a thread draw-off mechanism, the end of a thread hold-down mechanism, with And line tail shearing mechanism；

L bracket that the thread feeding mechanism includes being made of cross bar and montant, driving L bracket parallel to major axes orientation along moving First straight line driver, be arranged on montant magnetic damper, be arranged in magnetic damper shaft drum, be arranged on cross bar The second stepper motor on end, the active nip rolls being arranged on the second stepper motor armature spindle, be vertically connected on crossbar end Two leads going up and extend downwardly, slide up and down with lead the sliding block of cooperation, the roll shaft being fixedly connected on sliding block, with Driven nip rolls that roll shaft is rotatably assorted, the horizontal connecting plate being fixed on lead lower end, be arranged on horizontal connecting plate bottom surface Three stepper motors, parallel with lead and by the 3rd stepper motor driven first screw, first screw and sliding block screw thread Coordinate, fairlead is additionally provided with the horizontal connecting plate；

The axial direction of the active nip rolls and driven nip rolls is axially in parallel with main shaft, be provided with the active nip rolls for pair The annular groove that wire raw material wire rods are positioned；When pinching wire raw material wire rods, the edge of the active nip rolls is embedded in annular groove；

The end of a thread draw-off mechanism include be fixed on vertically in rack the first cylinder, be fixed on the first cylinder piston rod end vertically On connecting rod, be horizontally fixed on connecting rod the second cylinder, be connected to the second cylinder block end vertical duct and set It is used for the toroidal pipe for importing wire raw material wire rods, the upper end face fairlead of the toroidal pipe, institute in vertical duct upper end State the side opening for being provided with the side of vertical duct and being stretched into for the piston rod end of the second cylinder；

The end of a thread hold-down mechanism is pressed including the guide rod being vertically set on main shaft, the pressing plate being arranged on guide rod, for promoting Bolt that plate is moved along guide rod, be arranged on be used on guide rod the spring for promoting pressing plate return, the electric wrench for turning bolt, Support the first support plate of electric wrench, be arranged on be used to driving the first support plate to move radially along main shaft in rack it is second straight Line drive, the bolt coordinate with spindle thread；

The buttock line shearing mechanism includes the second support plate, is arranged on the electric shear of the second support plate upper end, is arranged on rack Upper the 3rd linear actuator for being used to drive the second support plate.

2. transformer coil coil winding machine according to claim 1, it is characterised in that：The first straight line driver includes the Four stepper motors, by the 4th stepper motor driven No.1 screw and the No.1 guide rod parallel with No.1 screw, described one Number screw is arranged in parallel with main shaft, and the montant lower end of the L bracket is arranged on No.1 screw and No.1 guide rod；

The second straight line driver includes the 5th stepper motor, by the 5th stepper motor driven No. two screws and with two Number No. two parallel guide rods of screw, the lower end of first support plate is arranged on No. two screws and No. two guide rods, described No. two screws are arranged vertically with main shaft；

3rd linear actuator includes the 6th stepper motor, by the 6th stepper motor driven No. three screws and No. three silks No. three parallel guide rods of bar, No. four screws for being arranged on No. three screws and slide on No. three guide rods, being arranged on slide With the 7th stepper motor of No. four screws of No. four guide rods and driving, No. three screws are arranged in parallel with main shaft, and described four Number screw is arranged vertically with main shaft.