SU868934A1 - Machine tool for manufacturing winding groups of electric machines - Google Patents

Description

(54) MACHINE FOR MANUFACTURING COIL-COLLECTION GROUPS OF ELECTRICAL MACHINES

one

The invention relates to electrical engineering technology, and more specifically to machines for winding groups of stator coils by a separate method.

 A known machine for continuous winding and pouring a group of winding sections into the stator grooves of electric machines, comprising a reel mounted on a mandrel mounted rotatably in a frame, a template mounted on a rod, a template displacement mechanism, a multislit mandrel and a Cll spinning mechanism. The disadvantage of the machine is its low productivity, due to the fact that the winding is performed on a template that is angled to the slotted guide. The angle of inclination of the template is chosen from the condition of sliding the winding wire along the template and at the same time the possibility of transporting the coil along the long pattern to the slotted mandrel, which at high winding speeds leads to

Crossing the turns on the template. In addition, the performance is low due to the installation of a coil with a wire on a rotating reel, which, in case of difficulties, balancing the coil with its inhomogeneous and varying

mass forces to reduce the speed of winding.

Closest to the present invention is a device for producing a winding of the stators of electric machines, comprising a reel mounted on a winding head mounted for rotation in a frame, a multistage template fixed

10 on the rod, a mechanism for locking the template against rotation, a mechanism for forming taps, a mechanism for switching the winding of the template from one step to another, and a reel drive. The mechanism for switching the winding from one stage of the pattern to another is made in the form of a system of levers that interact with one end with the steps and the other with the camshaft,

20 installed in the frame of the device. The mechanism for fixing the template from the turn, when the winding is made, is made in the form of a guide that is fixed in the frame and is capable of longitudinal movement in the steps of the template. The steps of the template are made in places, in contact with the winding head) in the form of G23 cones. .

The disadvantage of this device is its low productivity.

caused by a low speed of rotation of the reel and the need to slow it down when switching winding from one stage to another. The low rotational speed of the reel is caused by constructive execution and positioning of the winding switching mechanism, which forces the coil with the wire to rotate along with (the reel around the template steps to the head. It is impossible to balance the variable mass of the coil to reduce the winding speed. The need to slow the reel rotation when switching winding from one step to another is caused by the movement of large masses (as the steps move) and the force of friction that occurs in the mechanism fixation when moving the stage.

The purpose of the invention is to increase the productivity of the machine.

The goal is achieved by the fact that the mechanism for switching the winding of the template from one stage to another is made in the form of a glass template mounted on the stem Hcd with a drive of its reciprocating movement along the template axis and kinematically connected to the reel.

The mechanism for fixing the pattern is made in the form of a planetary gearbox, the small central gear of which is mounted on the rod, and the satellites on the winding head, the larger central gear being kinematically connected with the winding head.

The drive mechanism for switching the winding of the template is made in the form of a copier, kinematically connected with the winding head, and three woo, with woks mounted on the rod movably along its axis, one of which is rigidly connected to the glass, and the other two are spring-loaded to it, moreover, the ends of the stops are located in the slots of the copier.

FIG. 1 shows the proposed machine, a general view; in fig. 2 is the same section; FIG. 3 shows a mechanism for switching the winding of the template from one step to another; in fig. 4 is a scan of the inner surface of the drive camcorder for reciprocating disk movement; in fig. 5 is a pattern at the moment of switching the tool from one step to another.

The machine (Fig. 1) for manufacturing the coil groups of electric machines comprises a reel 1 mounted on a winding head 2 rotatably mounted in a bed 3, a multistep pattern 4 mounted on a rod 5, rotatable in the winding head 2, a mechanism b fixing the pattern 4, a mechanism 7 for forming taps, a mechanism 8 for switching the pattern ng1 windings from one stage 9

(Fig. 2) template 4 to another level

10 and drive reel 1 (not shown).

The mechanism 8 is made in the form of a cup 11 with a drive 12 (FIG. 1) of its reciprocating movement along the axis of the template 4 mounted on the rod 5 above the template and kinematically associated with the reel 1 ..

The mechanism 6 is made in the form of a planetary gearbox, the small central gear 13 (Fig. 2) of which is mounted on the rod 5, and the satellites 14 with the axles 15 - on the winding head. 2 and interact with the large central gear 16. The mechanism 6 is connected through a large central gear 16, gears 17-19 connected to gear 20, which in turn is connected to the reel drive 1.

Drive 12. (Fig. 1) the reciprocating movement of the glass

11 made in the form of a copier 21 (FIG. 3) kinematically associated with the winding head and mounted on the rod, ke 5 with the possibility of axial movement along it of three sleeves 22-24,

On each of the sleeves are stops with pins 25, 26 and 27, on which sliders 28, 29 and 30 are mounted.

The sleeve 23 through the rod 31, t gu 32 and the fork 33 is connected to the disk 34 of the hub 35, which is installed with the possibility of axial movement along the rod 5. On the hub 35 the cup 11 is mounted for rotation, the surface of which, facing the template 4, is made in the form cones 36. Springs 37 and 38 are installed between bushings 22-24. On lateral surfaces 39, copier 21 are located closed profile notches 40-42 (Fig. 4), interacting with sliders 28-30 (Fig. 3).

The copier 21 is connected via a shaft 43 with a planetary gear 44 (Fig. 1), a small central gear 45 (Fig. 2 of which is mounted on a shaft 43, satellites 46 with axes 47 in the winding head 2, and a large central gear 48 frame 3. The planetary gear 44 via gears 49 and 50, gear 51, shaft 52, and gear wheels 19 and 20 is connected to the drive of the reel 1.

“The gear ratio from the winding head 2 to the large central gear 48 is such that for the number of revolutions of the reel 1, equal to the number of turns of the bobbin group, the shaft 43, and hence the copier 21, makes one turn.

Claims (2)

The template 4 comprises concentric stages 9 and 10 interconnected by means of fingers 53 mounted in them with the possibility of alternating reciprocating movement from a mechanism (not shown) connected kinematically with copier 21. To move coils 54 and 55, wound by wire 56, template 4 is equipped with a pusher (not shown) / kinetic connected with copier 21, a machine for producing electric groups of bobbins is equipped with a table 57, sprockets 58 and 59, chain 60 and shaft 61 connected with gearbox 51. On the table 57 set the mouth and the faceplate 62 with an intermediate mandrels 63 and 64 and there povorbt mechanism of that indexed Rotate chuck 62 and intermediate ODA wok 63 and 64 (not shown). A mechanism 7 for forming taps via sprockets 65 and 66, chain 67 and shaft 61 is connected to gearbox 51 and comprises hook 68 with protrusions 69 and stop 70. Hook 68 is rotatably mounted on shaft 71 in the direction indicated by the arrow and connected with it by means of a spring (not shown). The kinematic coupling of the shaft 71 with the reel 1 is such that during the Hc1 winding time of one coil the hook 68 makes one revolution. Coils of different sizes are connected by taps 72 (Fig. 5), for passage of which in the body of a large-size stage 10 a continuous groove is made (not shown), Coils of different sizes form a coil group 73 with leads 74 formed by cutting taps 72 between the coil shears tsami (not shown). Steps 9 and 10 have a cone for smoothly moving down the winding coils 54 and 55 downward. The cuts 40 and 41 of the copier have inclined sections 75-78 (Fig. 4), and you cut 42 - sections 79 and 80. On the winding head 2, there is a fixed gear 81, kinematically connected to the shaft 52 by means of gears (not shown) . Pere. The ratio i between gear 81 and the large central gear 16 grows with the dependence -.i, | iL, (1) - where 2. is the number of teeth of the small central gear 13; 2 (, is the number of teeth of the large central gear 16. This gear ratio ensures the immobility of the shaft 5 and, obviously, of the pattern 4 when the mandrel 2 rotates. Simultaneous installation of several mechanisms 7 for the formation of taps at different lengths of taps 72 and conclusions 74 is possible. In this case, the kinematic coupling of the shaft 71 with the reel 1 is such that the hook 68 makes one revolution during the winding of the bobbin group 73. The machine for producing the bobbin groups of electric machines works as follows. With the reel 1 attached to the winding head 2, the coil 54 is wound with wire 56, for example, at a smaller stage 9. The winding is performed on a cone, therefore, in the winding winding process, the coils slide along step 9, forming a coil 54. Together with the winding head 2, they rotate also satellites 14 with axes 15. Due to the fact that the gear ratio between the gear 81 and the large central gear 16 is expressed by the relation (1) when the mandrel of the small central gear 13 is wired, the same rotation is reported, but in the opposite direction. As a result of the imposition of two rotations, the central wheel 13 gears remain stationary, and with it the rod 5, the cylinder and the template 4. The planetary gear 44 also works in the same way. However, the gear ratio between the winding head 2 and the large central gear 48. chosen such that during the time corresponding to the winding of the coil core, the small central gear 45 makes one revolution. Correspondingly, one turn is carried out by the shaft 43 and the copier 21. When the copier 21 is rotated by the closed recess 40 through the slider 28 due to the presence of an “inclined section 75, the sleeve 22 moves downwards and the spring 37 is compressed. By the end of the winding of the coil 54, the copier 21 aligns the section 79 with the slider 29, and the sleeve 23 under the compression of the spring 37 moves abruptly downwards, moving the glass li through the rod 31, the gu 32, the fork 33, the disk 34 and the hub 35. Since the movement The cup 11 is insignificant, in the order of two diameters of the winding wire 56, the process of switching the winding to step 10 occurs quickly, within the time of winding one turn. When winding wire 56 to level 10, wire 56 slides along the cone 6 of cup 11. In the process of winding to dupe 10, copier 21 continues the rotation, interacting with the slider at the 29th stretch, and with slider 28 and 0 - the inclined sections 76 and 77. When interacting slides 28 and 0 with notches 40 and 42, sleeves 22 and 4 move JCU upward, freeing the gun 37. and compressing the spring 38. By winding the wire 56 and step 10 notch 41, moving the length of the slider 29, combines the next 80 section. The slider 29 moves abruptly upward under the action of the compressed spring 38. In this case, the cup 11 through the sleeve 23, the rods 31, the t gu 32, the fork 33, the disk 34 and the stu pause 35 sharply move upwards. The wire 56 is moved to step 9 by the action of tension. When switching the tray from one step to another, the hook 68 of the mechanism 7 of the formation of taps rises abruptly, with further rotation of the reel 1, the wire 56 runs onto the raised hook 68 and engages with it. Since hook 7b8 is associated with wah-. the scrap 71 is rotated by means of a spring (not shown), then under the action of the tensioned water 56 it rotates until the protrusion 69 contacts the stop 70. At the same time, the end of the hook 68, turning on the arc (in the direction of the arrow), leaves the winding zones together with a tap 72. At distance 1, not the hook 68 rotates in the direction indicated by the arrow and leaves the engagement with the tap 72, i.e. lowered. The resulting taps 72 when moving the wound .55 coils along the pattern 4 pass through a notch (not shown) in step 10. The taps 72 between the coil groups are cut with scissors. The coils 55 pushed by the pusher (not shown), kinematically connected with the cam 21, are wound on steps 9 and 10 of the template 4 and are moved along the steps 9 and 10 to the end of the template 4. At the end of the template 4, the coils 54 are at each of the steps 9 and 10, forming a coil group 73, pushed along the next stroke of the pusher onto the intermediate mandrel 64. The fingers 53, which link the steps 9 and 10, alternately reciprocate from a mechanism (not shown), kinematically connected with the copier 21. The fingers 53 are alternately pulled inward by the mortar. and 9 for smoothly moving the Hc1Motan coils 54 along the pattern 4 and vytsv-tsya after moving the coils 54 to connect the sticks 9 and 10. After pushing the wound coil group (cut from next) on the intermediate mandrel 64, the latter turns around the axis from rotary mechanism (not shown) to receive the next coil group. After the entire intermediate mandrel 64 has been filled with coil groups, the yaning bar 62 is rotated (from the rotary mechanism of the table 57), the intermediate mandrel 63 shifted under the pattern 4, and the coil groups located on the mandrel 64 are either removed or moved into the stator slots (not shown ). The process then proceeds similarly. The proposed machine allows to increase the productivity of manufacturing coil groups of electrical machines. Increased productivity is due to the rapid transfer of the winding from one stage to another, as well as the manufacture of coil groups without slowing down or stopping the rotating reel. Claim 1. The machine for the manufacture of the cat-. an electric maiin arm group containing a reel rigidly connected to a winding head mounted on a frame, a multi-stage template fixed on a rod located inside the winding head, a mechanism for fixing the template to form taps to switch the winding of the template from one step to another and Scraper reel, characterized in that, in order to increase productivity, the mechanism for switching the winding pattern from one stage to another is made ideally mounted on the rod above the glass template with Driving its reciprocating movement along the template axis and kinematically associated with the reel, 2. Machine according to claim 1, characterized in that the mechanism for fixing the template is made in the form of a planetary gearbox, the small central gear of which is mounted on the rod, and the satellites on a winding head, with a large central gear kinematically connected with the winding head. 3. Machine iop. 1, it differs from and with the fact that the drive of the mechanism for switching the winding of the template from one step to another is made in. the form of a copier, kinematically connected with the winding head, and three bushings with stops mounted on the rod movably along its axis, one of which is rigidly connected to the glass, and the other two are spring-loaded to it, with the ends of the stops located in the slots of the copier. Sources of information taken: into account during the examination 1. USSR author's certificate No. 213155, cl. H 02 K 15/085, 1965. 2. Authors certificate of the USSR 450288, cl. H 02 K 15/04, 1965. 25 ffi Fig.Z