SU452944A3 - Device for crimping sheet stock - Google Patents

Description

The invention relates to the processing of metals (EE) more, in particular, to devices for corrugating sheet stock. A device for corrugated sheet workpieces is known, which contains knots for trimming edges, crimping and calibrating, fixed in series on a common plate and driven from a common drive. . The purpose of the invention is the manufacture of plate cores for spark ignition systems. For this, the proposed JHO supply device is a vertically movable plate, connected by columns with a fixed plate, located behind the edge trimming unit by the blank preparation unit, located in front of the calibration unit by the corrugation approach unit and the carriage for moving the blank along the machining positions, and the corrugated node I am made smaller to measure, from two successively located in the feed direction of the steps, the working elements of the first step are located in the center of the workpiece, and the subsequent ones are displaced to the edges. Cooking can be performed in the form of sequentially arranged a mechanism nadrezki longitudinal slits, alignment mechanism portion notched belt and transverse cutting mechanism Ribbon za1Ch) Preparations, the movable and stationary elements of the operating mechanism are mounted respectively on the fixed and movable plates. The working elements of the corrugation unit can be made in the form of wedge punches mounted on a movable plate with the possibility of relative vertical movement, and the matrices, also made with clip ones, are mounted on the bottom plate with the possibility of displacement in the direction of feed through cams connected with; movable plate, and equipped with a reverse movement mechanism. The knot of approaching the corrugations can be made in the form of a pair of end caps; lindral grooves installed between the “fixed plates with the possibility of | approach and spring-loaded relative to |; top plate removers. J The calibration unit can be made in the form of a die, mounted on a fixed plate, a loading cylinder with a radial hole, connected to a movable plate with the possibility of rotation by 90, and a pusher rigidly mounted on a movable plate. The carriage for moving the workpiece can be made in the form of two rods mounted in bearings on a fixed plate with the possibility of reciprocating movement and rotation at a certain angle and levers rigidly fixed to them at a distance equal to the length of the workpiece. FIG. 11 shows the described device, a general view; FIG. 2- the same plan view; in fig. 3, 4 - trimming unit in two operating positions; in fig. i 5, 6 - the first step of the corrugation unit at the beginning and; end of corrugation, respectively; in fig. one ; the section along the A-A in FIG. 6; in fig. 8, 9 - second and third corrugation step in the final stages of deformation; in fig. 10 - 30 knot of approaching corrugations in the initial stage of deformation; in fig. 11: - calibration node; Fig. 12 shows a preform at the time of corrugation. ((Figs 5-12) shows only one half of the devices, the other half of them is a mirror image shown, respectively, the symmetrically located two parts are denoted by one position). The device contains a fixed plate 1: 40 and a movable plate 3 connected with it through columns 2 (Fig. 1) connected with a crank mechanism (not shown). On the plates there is sequentially placed a tape edge trimming unit consisting of two pairs of knives. 4, the length of which is equal to the length of the workpiece, the components for preparation 5 of the workpiece, corrugation 6, approximation 7 of the corrugation and gauge 8 and outlet pipe 9 (Fig. 2). The workpiece preparation unit 5 contains Ha6opi50 parallel knives 10 for cutting longitudinal grooves on the tape, straightening plates I straightening the notched tape section and knives 12 with a folding stop 13 for cutting the workpiece from the tape. The length of the knives 10 for notching no h

: how much less than the length of the workpiece, and the width

4 5

i pivotally mounted on the plate 51, with i the extreme punches less .. the width of the central I punches, accessories; punches are installed so | I that the distance between them decreases to Icr of the belt, i Stop 13; mounted on a stage of the fixed plate 1, interacts with the cam 14 when lowering the plate 3 (Fig. i3, .4) .-,. ..,.,. The body of corrugation 6 is formed from three stages of foams, each containing three pairs of hchshyuons and matrices having longitudinal wedge ribs. The matrix 15 of the first stage is fixed on the pl-j te 1: motionless, and the matrices 16 and 17 are set j. Updated at the ends of the rods 18 and 19 (Fig. 7). t | At the other ends of these rods there are fasteners 20 and 21 i interacting with the stop 22 with two wedge surfaces, which: moves the matrices 16 and 17 towards the matrix 15. To the initial position of the matrix | they are returned by pneumatic cylinders 23 and 24 connected with them through rods 25 and stops 2 6. Punches 27 are fixed on plate 3 fixedly, but punches 28 and 29 are mounted on telescopic pistons x 30 and 31 j placed in pneumatic spring 32, in which black air is supplied through channel 33. The displacement of the pads QOHOB 28 and 29 is limited by the stop planes 34 and 35. The second corrugation stage contains the pus; Anson 36-38 and dies 39-41: (Fig. 8), and, the third stage is punches 42-44 and dies j 5-47 (Fig. 9). Punches 43 have lugs on the short edge of the workpiece, and punches 42 - corresponding grooves. Poins 1 27 and 38, as well as 36 and 44. are located; so that their lines of action coincide. On plate 1: along the center line in the second and third steps, inserts 48 and 49 are placed with two pairs of triangular ribs for guiding the partially creased blank. The node 7 of the approaching corrugations (Fig. 10) is made in the form of flat parallel plates 50 and 51; the distance between which is somewhat greater than the height of the central corrugations of the billet, the pushers 52, having cylindrical recesses at the working end and interacting through a system 53 of levers with stops 54, and associated with a pneumatic spring 55, which returns the pushers 52 to the initial position. A pair of pullers 56 serv. to separate the workpiece from the pushers and one of the ends of the pullers 56 protrude between the plates 50 and 51 through the transverse groove | in pdastine 51: by the amount regulated; a stopper 57. A calibration unit 8 (Fig. 11) comprises a spinneret 58 fixed on plate i, a pusher 59 mounted on plate 3 and guided by sleeve 60, and a loading cylinder 61 with a diametrical opening having an entry cone. The cylinders are located on the axis 62 at the other end of which a roller 63 is fixed, moving in the cam groove of the plate 64 mounted on the movable plate 3. The shape of the groove is such that as the plate 3 moves down, the cylinder 61 rotates 90 ° counterclockwise.i the workpiece along the machining positions, is made in the form of a pair of cylindrical rods 65 and 66 moving along the plate 1: in bearings fixed to it (Fig. 1, 2). At their ends, remote from the entrance of the belt, the shtangi through the slit joint are connected with bushings 67, which in turn are connected through a system of levers and pushers to the plate 3 with the possibility of rotation through a certain angle. Air springs 68 return sleeves 67, and thus rods 65 and 66, to their initial angular position. The ends of the rods 65 and 66 are connected to the pavement. part 69 with the possibility of rotation. The bridge part 69 is coupled through the cams to the drive for moving the carriage to the preparation preparation unit. The return stroke of the carriage is provided by pneum01uzhi11a (not shown in the drawing). In one stroke of the plate 3, the carriage makes a double stroke. The carriage maintains a pair of levers 70, 71, 72, 73 fixedly mounted on shtanga 65 and 66 and reciprocating with them (moving along the axis of the device and turning a certain angle to transfer the workpiece from one working position to another. The workpiece is transmitted into the calibration unit with a lever 74 mounted on a 66 bar and having a special shaped tip 75. I A mild steel tape is coated with insulating varnish, intermittently fed to a pitch equal to the length of the core. When the plate 3 goes down, the knives 4 cut the tape, ensuring the specified . the width and the desired direction of the tape. With the next moves of the plate 3, the cut section of the tape is fed to the blank preparation 5, where with the help of knives 10 two longitudinal slits are applied to it, the distance between which is reduced to the edge. In the course of plate 3, the notched section of the tape is trimmed between the plates 11, and then cut off from the tape by knives 12. The cut end of the tape — blank 76 — is released from the support of the stop 13 by cam 14 and feeds onto the levers 70. An air jet prevents the blank from falling into l zvie lower knife. During the next course of the plate 3 downward, the levers 70 move the workpiece 76 to the corrugation unit, mounted on the first stage dies so that its centering slit is located in a common plane with the edge of the punch 29. The corrugation is carried out alternately by punches 29, 28 and 27, each puapson comes into operation after stopping the previous one. When stopping the punches 28 and 29, the plate 3 does not stop, since the latter can move vertically relative to the plate, because they are fixed to pistons and pneumatic springs 32. As soon as the punches 27 or 28 touch the workpiece (Fig. 12), they start to mix; under the action of the stop 22, the corresponding matrices 17 or 16, moving closer to the central parv by the matrix 15. At the end of the stroke of the plate 3, the workpiece is bent along eleven slots, and the non-corrugated areas remain in the same plane (Fig. 6). During the course of the plate 3 upward, the punches 27, 28, 29 alternately depart from the workpiece, and the dies remain in a closed state. In the second stage, the corrugations are transferred by levers 71 fixed on shtanga 65 and 66. Towards the end of lowering the slab :) shtangs 65 and 66 under the action of the cam-lever system connected to the Sh1MI turn: and lift the levers 71, and during the course of the slab upwards move them around the matrix of the first stage. Before plate 3 reaches the top position, the levers 71 lower. They pick up partially the half-finished billet at the back and push it into the second corrugation dull along the edges of the insert 48. After this, the matrices 15 and 16 return; Pneumatic cylinders 23 and 24. The action of pneumatic cylinders 23 and 24 is determined by the control cam mechanism vshen, pushing the matrix after moving the workpiece to the second stage I and pushing the stops 26 to the original position. -. The sequence of movements of the punches and the matrices of the second and third stages, as well as the levers 72 and 73, is similar to the sequence of measurements of the punches of the matrices of the first stage and the levers 71; The levers 73 feed the fully creased billet into the knot of approaching the corrugations, then under the action of the pushers 52 driven from the stop 54. through the cam-lever system 53, the billet is compressed to the contact of the corrugations, acquiring a cylindrical section. When the pushers 52 retract under the action of the pneumatic spring 55, the pullers 56 protrude from the slit of the plate 51, keeping the workpiece 76 from moving together with one of the pushers. When lifting the plate 3, the lever 74 is pressed into the bore of the cylinder 61: When the plate 3 is lowered, cylinder 61 has its axis interacts with the cam groove of the plate 64, rotates 90, transferring the compressed workpiece from the horizontal to the vertical position, and then the pusher 59 pushes it into the calibration die 58. The blank is pressed through the filter The following billet moves into the discharge pipe 9 at the next course of the plate 3 (Calibration die 58 provides the specified core diameter and correct section shape. The operation of the device is controlled by a security system that turns off the device if the levers are not lowered in a certain time-cycle performed a full longitudinal stroke, or the workpiece is not compressed, not inserted into the loading tank). i The subject of the invention 1. A device for corrugating sheet billet containing trimming, crimping and calibrating units fixed in series on a common plate and connected to a common drive, in order to manufacture lamellar cores for spark coils of the ignition system, it is equipped with a vertical movable plate, St.-j filled with 4 columns from a single-sided plate 1, located behind the center edge of the preprocessing tape, located in front of the calibration unit by the corrugation and frame approach unit mended for moving the workpiece along a machining position, and the assembly formed corrugation, software mensche least yu two successive stages in the direction of feed, operating elements of the first stage are centered in the workpiece, and the subsequent offset at the edges.; 2. The device according to p., With the following topics: that the preparation preparation unit is made in the form of successive nesting mechanism of the longitudinal slits of the straightening mechanism of the notched tape section and the cross-cutting mechanism of the tape into blanks, while the moving and stationary working elements of these mechanisms are mounted on the moving one and still plates. 3. The device according to claim 1, characterized in that the working elements of the shirring assembly are made in the form of wedge punches mounted on a movable plate with the possibility of relative vertical movement, and the dies, also made with wedge ones, are mounted on the fixed plate with the possibility of displacement in the direction of the feed axis through the cams associated with the movable plate, and provided with a reverse movement mechanism 4. The device according to claim 1, characterized in that the corrugation approaching unit is made as a pair of pushers with end grooves The cylinder; Lindrical shape, mounted between fixed plates with the possibility of approaching pullers and spring-loaded relative to the top plate. 5. Device according to claim, 1, characterized in that the calibration unit is made in the form of a die attached on a fixed plate, a loading cylinder with a radial hole associated with movable plate can be rotated 90, and the pusher rigidly mounted on the movable plate. 6.I The device according to claim, Ij, characterized in that the carriage for moving the workpiece is made in the form of two shtangs installed in; sub-supports on a fixed plate with the option of 1 HOCTtdo reciprocating movement and rotation, and levers rigidly attached to them at a distance equal to the length of the workpiece, i

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