SU1334294A1 - Automatic machine for producing stacks of electric machine magnetic cores - Google Patents

Abstract

The invention relates to a process equipment for the production of packages of magnetic magnetic conductors. cars and m. used in the electrical industry. The aim of the invention is to increase the productivity and improve the quality of the manufactured package by eliminating the deformation of the plates. The machine has two positions 2 and 3 for the selection of plates from the stacking mandrels 8 and 9 associated with the press. The dosing positions 4 and 3 and the position 5 of the crimping and welding positioned opposite it are located at positions 2 and 3 of the plate selection. Selected from (L co oo 4 N5 CO 4 Rig. 2

Description

1334294

mandrels of 8 or 9 batches of sheets are re-rotated 180 °. Then.pack

Carry with a carriage 22 or 23 on the poi-tolerated transport arbor 7

4 dosing, where the final position 5 of crimping and welding,

the number of plates is taken in pa-where the package is finally formed

ket moreover, half of the plates of the magnetic pipe. 7 Il.

The invention relates to process equipment for the manufacture of packages of magnetic circuits of electrical machines and can be used in the electrical industry.

The purpose of the invention is to increase productivity and improve the quality of the manufactured package by eliminating the deformation of the plates.

Fig, 1 - desktop machine view reconciliation; in fig. 2 - automatic, axonometric; in fig. 3 shows the structure of a device for taking sheets from a hollow mandrel; Fig. 4 shows the structure of the device for metering sheets; FIGS. 5 and 6 show the floor with a movable carriage with gates, two projections in FIG. 7, the structure of the device for pressing the bags.

An automatic machine for manufacturing: packages of magnetic circuits of electric machines includes four main working positions located on the common working table I (Fig 1): two positions 2 and 3 of the selection of sheets, position

4 dosages, which are located between each of the sampling positions and the position

5pressing and welding. The positions of dosing 4 and welding 5 are interconnected by a through longitudinal groove 6, made in work table 1,

in which the movable mandrel 7 is moved. The selection positions 2 and 3 are connected directly to the die-cutting press (not shown in the drawing by two identical hollow staple mandrels 8 and 9 (respectively), according to which the stamped sheets from a two-press stamp of one automatic press or From two presses with single-sided dies, they are fed to an automatic machine for making bags and fed to devices 10 and 11 of the selection of sheets (Fig. 2), maintaining the orientation obtained by stamping. Inside the hollow building strip arbors 8 and 9 in the selection zone l The induction sensors 12-14 are installed at the three levels and react when the stack of sheets is cut through. Sheet pick-up devices 10 and 11 are designed to pick up a pre-excess dose of sheets from the mounting mandrels 8 and 9 and are placed at the ends of the rods 15 and 16 hydraulic cylinders 17 and 18, respectively. At the dosing station 4, there is a dosing device 19, which is located at the end of the cylinder 20 wiper 20. This device is intended to ensure accurate dosing by separating desired length packet in the form of a compression pre-dose excess cut sheets delivered from the selection position to the position of dosing. Between the withdrawal position 2 and the dispensing position 4, as well as between the withdrawal position 3 and the same dispensing position 4. Two identical devices are placed with the possibility of horizontal movement for horizontal transportation of the selected dose of cut-off waste from the selection position to the metering position. These devices are made in the form of carriages 22 and 23 moved by identical pneumatic or hydraulic cylinders 24 and 25. Transportation from the metered packets from position 4 of the metering to position 5 of the welding is carried out by means of the displacement device 26, which

It has the ability to move in

through the longitudinal groove 6 and consists of a horizontal hydraulic cylinder 27 reinforced on its stem L-shaped bracket 28 with a vertically movable mandrel 7 placed on it,

A pneumatic cylinder 30 is positioned coaxially with position 4 of the metering. The piston rod 31 of which serves to raise the mandrel 7 to the upper position is positioned with the alignment pin 29. Under the working table 1, the pneumatic cylinder 30 is located. Coaxially with the welding position 5 above the working table 1, a crimping device 32 is positioned to ensure accurate orientation and compression of the bag during welding. The welding device 33 consists of several burners 34 having a common drive (not shown), located under the work table 1.

The sheet selection device (Fig. 3) comprises a housing 35, in which a central mandrel 36 is placed on the floor, the upper part of which is designed as a gear 37, which engages with a rack 38. The central mandrel 36 is placed in the housing 35 so that -accessible movement of the toothed rack 38; the mandrel can rotate 180. The diameter of the outer cylindrical part of the central mandrel 36 is somewhat less than the internal diameter of the magnetic core sheets, while the outer part of the mandrel is provided with a spring-loaded puller 39. At the bottom parts of the central mandrel 36 on its outer surface is placed an expanding ring 40 of a wedge-shaped profile with a pointed outer edge. The expansion ring 40 is in contact at several points with the balls 41, which in turn are in contact with the conical surface 42 of the movable cylindrical rod 43 located inside the central mandrel 36. The rod 43 is connected to the stem 44 of the pneumatic cylinder 45 and can be moved in the vertical direction progressively inside the central mandrel 36, through the conical surface 42 and gaariki 41 on the expansion ring 40, expanding it. Return the ring to its original position when lifting a conical surface

42 occurs due to its elasticity. I

The metering device 19 (Fig. 6) includes a housing 46 in which a sleeve 47 is installed, which is designed as a gear that meshes with the rack 48. Inside the sleeve 47 there is a central dosing mandrel 49, which is a pneumatic cylinder piston 50, the lower part of which is located the expansion ring 51 with the expansion mechanism identical to the expansion mechanism in the selection device. A threaded cup 52 is screwed into the upper part of the sleeve 47, which is contrasted with a nut 53. The thread serves to adjust the height of the package to be dosed.

A spring 54 is installed inside the cup 52, which acts on the upper end of the central metering mandrel 49 and, in the absence of air, moves the mandrel under the piston 50

5 49 to the distance h, pressing its piston 50 to the inner end of the bush. 47 ,. During the forward movement of the toothed rack 48, the sleeve 47 together with the mandrel 49 makes a rotational movement, which ensures the rotation of the central metering mandrel through a certain angle and, if necessary, the orientation of the package relative to the working positions of the automat. When air is supplied through the opening 55 under the piston 50, the central metering mandrel 49 is pressed against the lower end of the cup 52. The rotation of the cup 52 relative to the sleeve

0 47, adjustment of the height H is achieved, corresponding to the height (size) of the package (H is the distance between the lower end of the sleeve 47 and the sharp edge of the expanding ring 51).

The carriage of the device for horizontal transportation of the selected dose of cut sheets (Figs. 5 and 6) consists of a hollow body 56, the inner cylindrical opening of which has a diameter corresponding to the outer diameter of the magnetic sheet and two side plates 57 symmetrically located relative to the body 56. On each from plates 57

5, an L-shaped gate 58 is installed, which is pressed by the spring 59 to the lower end of the body 56 and can be moved reciprocally in the radial direction through the pneumatic cylinder 60.

Q direction relative to the carriage body. When this gate 58 partially overlaps and completely releases the hole in the housing 56,

The device 32 for crimping 5 (Fig. 7) consists of two hydraulic cylinders 61 and 62 mounted coaxially over the work table K 63 of the cylinder 61 passes inside the hollow rod 64 of the cylinder 62 ,. Both stocks can re5

independent of each other. Stroke 63 is slightly larger, and stroke 64 is less than the length of the pack being assembled. At the end of the piece, 63 is installed on the mandrel 65 with the orienting keys 66. The diameter of the mandrel 65 corresponds to the inner diameter of the magnetic core sheet, and the bottom end portion of the rod 64 has a diameter close to the outer diameter of the magnetic magnetic sheet Yes.

An automatic machine for manufacturing packages of magnetic circuits operates as follows.

In the initial position of the automaton, the transport carriages 22 and 23 are at the 2 and 3 positions of the selection, respectively. The selection devices 10 and 11 are lowered to the extreme i-shn position so that their central mandrels 36 pass through the hollow body 56 of the carriages into the berth of the mandrels 8 and 9, respectively. At the same time, the expansion rings 40 at the central link of the interrogations are compressed. The sliders 58 of the carriages are retracted so that the holes in the hollow body 56 do not overlap. The metering device 19 is in the upper position, and its central mandrel 49 under the influence of the compressed lift is up and pressed against the bottom end of the cup 52, the expanding ring 53 is compressed. The displacement device 26 is directly under the dosing position 4 coaxially with the dosing device 19. The cylinder 31 of the cylinder 30 is in the lower position, the mandrel 7 is lower than the size of the table 1, the burner 34 of the welding device 33 is lower than the working table 1, the device 32 of the crimp top position.

Appropriate adjustment of sensors 12-14 located in stacking mandrels provides three consecutive signals: the 1st signal (from sensor 12) is supplied when the number of sheets strung on the mandrel 36 corresponds to half the height of the magnet package; 2nd signal (from sensor 13) - when the number of sheets corresponds to the whole package with some excess; The 3rd signal (from the sensor. 14) - when the level of the foot in the hollow mandrel 13 exceeds the permissible standard y, which can occur if the performance of the stamping machine exceeds

the performance of the proposed machine for the manufacture of packages of magnetic circuits. Cut sheets, moving vertically upward along the end portion of the stacking mandrels 8 and 9, are strung on the central mandrels 36 of the selection devices 10 and 11.

In the initial stage of operation of the automatic machine for synchronizing the work of the two sampling devices 10 and 11 with the device 19 for dosing, a portion of the cut sheets is removed from one of the stacking mandrels. When a pile of cut-out sheets in one of the staple mandrels, for example 8, reaches the first sensor 12, a command is given on the stump. The cylinder 45 of the selection device 10, after which the cylindrical rod 43 is lowered, pressed; a cone 42 to the balls 41 j which, in turn, unclener the ring 40. The reaming ring 40 with its outer edge cuts off a certain number of sheets from the foot, which is approximately half of the magnetic core packet. At the same time, a command is sent to the hydraulic cylinder 17, and the selection device 10 rises into extreme high pole. In this position, a command is issued to move the toothed rack 38, which, in its motion, interacts with gear 37 and rotates the center mandrel 36 along with lifting the pack half by 180 ° , After that, 36 sampling devices 10 together with located on. half of the bag is again lowered through the hole in the carriage 22 to the stacking mandrel. By displacing the cylindrical rod 43 in the opposite direction, releasing the expanding ring and it is compressed, as a result of which the sheets from the central mandrel 36 rest on the upper end of the foot, which continues to be strung on the central mandrel. rings 40. The full stack of magnetic sheets is captured with some excess. At the same time, there is a package 67 on the mandrel, the upper half of the sheets in which is deployed relative to the lower one

180

Thus it is reached

The difference in bag height is caused by the difference in thickness between the opposite sides of the cut sheets, which is a consequence of the different thickness of the original tape.

After seizing the excess dose of sheets, the extraction device 10 rises, and when the bag, strung on the mandrel 36, is inside the hollow body 56 of the carriage 22, its slides 58 slide out, blocking the hole in the carriage from below, and the expansion ring 40 is compressed. From the central mandrel 36, the magnetic conductor sheets pushed with a spring-loaded puller 39 are lowered onto the gates 58. Continuing upward, the selection device 10 removes the central mandrel 36 from the carriage 22.

The carriage 22 with an excess of sheets of magnetic circuit 67 is moved by hydraulic cylinder 24 to the dosing position so that the response of its hollow body 56 is aligned with the device 19 for dosing.

The selection device 10 and 11 operates with a phase shift over a predetermined cycle: the moment when the carriage 22 with an excess dose of sheets moves from the selection position 2 to the dosing position 4, the selection device 1 1 that is identical to the selection device 10 is working at the selection position 3 .

When the carriage 22 or 23 enters the dispensing position, the dispenser 19 under the action of the hydraulic cylinder 21 is lowered so that its central dispensing mandrel 49 enters the sheets placed in the carriage, centering them, and the sleeve 47 rests against the stack of sheets from the top and compresses him.

Under the action of the vertical force acting on the package, the spring-loaded gate valves 58 descend below the supporting plane against which the package is pressed. After the package is compressed, a command is applied to unclamping the ring 51, which with its outer edge cuts off the exact dose of the package corresponding to a given size N. Then the command is given to lift the metering device 19 and simultaneously to release air from under the piston 50. Under the action of the spring 54, the metering mandrel 49 has the ability to go down

ten

15

20

-25

,

342948

over the distance h (Fig. 4). This billet of the metering mandrel allows to fluff up an already dosed bag, relieve the elastic stresses arising in it during compression, and prevent the sheets from falling from the mandrel under the action of these elastic forces.

The presence in the device 19 for dispensing a toothed rack 48, which interacts with the gear of the sleeve 47, makes it possible, regardless of the position of the sheets in the splicing mandrel, to deploy the dosed package in a position corresponding to the location of the welding torches in the machine.

When the metering device is lifted upwards, the gates 58, on which the remainder of the H sheets remaining after the metering is located, return to their original position under the action of the spring 59 and the carriage with excess sheets returns to the selection position. When the extraction device 10 is lowered and its central mandrel 36 passes through the hole in the frame 22, a signal is given to open the slides 58. The residual sheets along the central mandrel 36 slide off to the upper end of the foot in the hollow mandrel.

Further, the cycle of sampling and dosing is repeated, and when the selection takes place at position 3, at position 4

2g dosing of the package selected earlier at position 2 and vice versa takes place.

After the carriage 22 or 23 leaves the dosing position 4, a command is supplied and the pneumatic cylinder, which with its rod 31 pushes the movable mandrel 7 located above it at the dosing position 7. After the mandrel is raised, the control mandrel 51 of the metering mandrel 49 is sent up. 51 is compressed, and the sheets from the metering mandrel 49 slide onto the movable mandrel 7 and the pin 29. Then follows the command to the hydraulic cylinder 27 of the displacement device 26, which moves the movable mandrel 7 with the bag along the groove 6 from the position 4 dosing at position 5 crimp and

55 welding. After being movable, the mandrel 7 with the bag will move to position 5 of the crimping and welding, the carriage 23 or 22 will move to position 4 of the dosage from position 3 from 30

50

9 . 133

pa (or 2). On the posture, and 5 of the crimping and welding, the movable mandrel 7 is mounted coaxially with the crimping device 32.

The hydraulic cylinder 61 is given a command, in which the mandrel 65 with orienting 1 and dowels 66 enters the central opening of the bag, simultaneously pushing the movable mandrel 7 out of it. The bag is centered on the mandrel 65, and then when the hollow rod 64 is lowered, the package is pressed the end of this stock. After that, the burners of the burners 34 are ignited, and during their vertical movement argon-arc welding is carried out along the forming package. After) pushing down the movable mandrel 7, it returns to its initial position by means of the horizontal hydraulic cylinder 27; position 4 dosing.

Further, the operation cycle of the nodes is repeated.

Claims (1)

Invention Formula An automatic machine for the production of packages of gland lines of electric machines, comprising a casing on which the mounting mandrels are fixed, a device for dosing, including a drive for reciprocating movement, a shut-off mechanism and a turning drive, a device for pressing and welding metered packets and ten Q d o five Q five and a device for transporting between the metering and assembling position, characterized in that, in order to increase productivity and product quality by eliminating plate deformation, the machine is equipped with at least one device for picking sheets from the building mandrels made in the form of a cylindrical mandrel installed vertically and movable over the mounting mandrels and equipped with a drive for its rotation and a sheet removal mechanism, with at least one device for. transport between a take-and-dispense position, made in the form of a carriage with an opening for accommodating a plate pack, equipped with spring-loaded slide valves with their movement drives and having reciprocating movement, the dispensing device is equipped with a pneumatic cylinder connected with a reciprocating actuator, a sleeve mounted on the upper end of the pneumatic cylinder stem and connected with the rotational drive, and the shut-off element is mounted on the lower end of the pneumatic cylinder stem, at this A device for transporting between the dosing and welding positions is made in the form of a mandrel fixed vertically and having the possibility of horizontal and vertical movement. 61 41 No g; FI.5 5s 0uz.6 Compiled by V, Pippkina Editor L. Pchelinska Tehred M. Khodanych Corrector. Cherni Order 3975/53 Circulation 659 Subscription VNIIPI USSR State Committee on inventions and discoveries 913035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Projecto st., 4