SU1245381A1 - Universal bending automatic machine having drive from sun gear - Google Patents

Description

progressively moving towards each other in the horizontal plane, with one clamp mounted on the bending slider and spring-loaded toward the mandrel, and the other mounted on the spring-loaded pressure slide, kinematically linked to the bending slide by means of interacting with each other rod and . balls placed in a closed curvilinear guide channel with the ability to move along it.

2. An automaton according to claim 1, characterized in that the guide mechanism of the petal bend is provided with a krppka fixed on the top plane of the guide, made in the guide groove in which the additional central slider is located, has a cylindrical shape, and the additional central slider has the shape of a cylinder with a flat face, in this case the flat face is flat, the upper plane of the guide and the lower plane of the shank are at the same level, areas of two additional lateral sliders of the mechanism of bending of the petals, located in pa the rail of the guide is made in the form of a rectangular parallelepiped; the connection of the additional central slide with a two-arm rotatable spring-loaded lever pivotally mounted on the brace and two-shoulder rotary lever pivotally mounted on the guide is made as installed in the additional central crawl fingers, one of which is mounted in a groove made in a lever mounted on a bracket, and the other in a hole made in a lever mounted on a guide.

3. The automaton according to claim 1-2, characterized in that it provides the wives with a holder mounted in the tool plate with the possibility

- displacements in the vertical direction and kinematically associated with a flexible slider, on which the cutting punch and mandrel are rigidly fixed to the working part of a cylindrical shape, and the clamp is fixed in the tool plate under the mandrel with the possibility of periodic interaction with it, at the end of the cutting punch a rectangular ledge located

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Along the side of the punch, adjacent to the mandrel, on the projecting working part of the butt end of the cutting punch is made through, perpendicular to the ledge, a trapezoidal groove, the opposite sides of which form cutting edges, and the surface of the detachable punch, located at the bottom of the mandrel, which forms it the surface and the end of the holder lie in the same horizontal plane.

4. The automaton according to claim 1-3, which is also distinguished by the fact that on the sides of the mandrel there are two flats made opposite the punches for bending the petals.

5. An automaton according to Claims 1-4, characterized in that the sliding mandrel for bending individual portions of the workpiece is made with two shaped end sections of the workpiece with strands of cylindrical shape, located along the edges, and with a through groove along it, served to accommodate it stops, the billet pusher to the next position is fixed on the sliding-mandrel and made in the form of a plate with two thrust protrusions on the end, which are adjacent to the stream and a sliding mandrel on the side of the vertical plate, and a through groove coaxially The slot of the sliding mandrel, on the lower surface of the step of the cutting punch and the lower end of the holder carrying this punch, are made grooves opposite to the respective thrust protrusions of the workpiece pusher; while it has a groove for accommodating the mandrel,

A punch for the flexible sleeves is installed below the mandrel with the possibility of periodically interacting with it, while on its working hub there is a half-cylinder in the form of a half-cylinder, in the lower part of which there is a hollow groove for accommodating the stop.

6. The automaton according to claim 1-5, characterized in that the punch for bending the sleeves is provided with two directions of 1 m for the workpieces installed on the sides of it with the possibility of simultaneous simultaneous movement at the upper end of each of the guides for the workpiece with side adjacent to the punch, made on the portion of the width of the guide ledge facing the vertical plate, while the lower surface of the ledges is located in the same horizontal plane with the upper end surface of the clamp.

7. An automatic machine according to claim 1-6, characterized in that the sleeves are made at the upper end of the punch

The invention relates to the field of metal forming and can be used in mechanical engineering in the manufacture of parts such as miniature sleeves.

 The aim of the invention is to expand the technological capabilities by manufacturing parts such as sleeves with U-shaped lobes cut and outwardly bent outward, the axis of which is directed along the generatrix of the sleeves.

FIG. 1 shows an automaton, a general view; in fig. 2-10 is the technological sequence of manufacturing the sleeve; in fig. 11 is a view A of FIG. one; FIG. 12 is view B in FIG. eleven; FIG. 13 shows the bending-flag mechanism; in fig. 14 is a view of B in FIG. 13; in fig. 15 is a view of T in FIG. 2; in fig. 16 is a section of D-D in FIG. 12; in fig. 17 - sleeve; in fig. 18 is a sectional view E — E of FIG. 17; in fig. 19 is a section And-And-on Fig.

The automatic machine contains a mounted unwinding device 1, a tongue-feeding mechanism 2, a vertical plate 3 mounted on a press 4 with a die 5, a driving bending slider 6 connected to a holding 7, on which a cutting punch 8 and a mandrel 9 are fixed.

In the holder 7 there is a groove 10 in which a roller 11 interacting with it is mounted, fixed on a pivot arm 12 mounted by means of an axis 13 on an instrument located along the side facing the central spindle.

8. The automaton according to claim 1-7, of which is based on the fact that the end of the step, interacting with the mandrel, has a working surface, the shape of which corresponds to the cylindrical surface of the mandrel.

9.Automatic device according to claim 1-8, characterized in that one shoulder of the rotatable spring-loaded lever of the petal bending mechanism is made with the possibility of adjustment along the length

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plate 14, mounted on a vertical plate 3. Rotary lever 12 interacts with a screw stop 15 mounted on a bracket 16 mounted on a slider 6. The holder 7, the punch 8 and the mandrel 9 are installed in rails attached to the tool plate 14.

At the end of the cutting punch 8 there is a rectangular ledge 17 located along the side of the punch adjacent to the mandrel 9, on the projecting working part of the end of the cutting punch 8 there is a through-facing trapezoidal groove 18 serving to align the belt with respect to the feed axis. Ledge surface 17,. located in the lower part of the mandrel 9, the cylindrical surface forming it and the end of the holder 7 lie in the same horizontal plane and form the upper part of the channel through which the workpiece 19 is fed to the bending position.

The lower ends of the cutting punch 8 and the holder 7 have rectangular grooves 20.

In the lower part of the cutting punch 8 and the holder 7 on the surfaces adjacent to the mandrel 9, symmetrically, relative to the vertical axis, rectangular grooves 21 are made to blow the finished bushing 22 from the mandrel 9. The mandrel 9 is made in the form of a plate: cantilevered into cylinder 23, on lateral

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the corons of which are symmetrically vertically axis two flats 24,

The clamp 25 is installed in the tool plate 14 motionless under the opav 9 by means of composite ronshte 26.

An extendable mandrel 27 for bending the end of the workpiece areas is made with two cylindrical shape streams 28 located along the edges and along the groove 29 along it, which serves to hold the clamp 25. The push bar of the workpiece on the bending position is fixed to sliding mandrel 27 and you-. 5 is completed in the form of a plate 30 with two thrust protrusions 31 at the end, which are adjacent to a brook m 28 of the sliding mandrel from the side of the vertical plate 3, and a through groove 32 coaxially with the groove 29 of the matrix.

The mandrel 27 of the crane f 33 is connected with the holder 34, which is fixed on the central spindle, made with the possibility of translational movement in the direction perpendicular to the vertical plate.

The drive bending slider 35 is associated with a punch 36 for bending the end portions of the workpiece mounted above the movable mandrel 27 and the cylindrical part 23 of the mandrel with the possibility of periodical interaction with the die, with a groove for accommodating the cylindrical part of the mandrel.

The lower drive bending slider 37 is connected to the punch 38 for bending the sleeve, installed below the mandrel 9, with the possibility of periodic JO interaction with it, while at its working end the stream 39 is made in the form of a half cylinder, in the lower part of which there is a hollow groove to hold the clamp 25. 45

At the upper end of the punch 38, there is a bevel located along the side facing the central spindle, which serves to facilitate the movement of the moving mandrel 27, opi-50, against the upper edge of the punch 38.

The punch 38 is provided with guides 40 and 41 mounted on the sides thereof with the possibility of joint movement. At the upper end of each of the 55 guides, on the side adjacent to the punch 38, there is a hollow step 42 facing the vertical plate.

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however, the lower surface of the steps can periodically be placed in the same horizontal plane with the upper end surface of the clamp, thus forming the lower part of the channel along which the workpiece 19 is fed to the bending.

The bending slider 43 serves to drive the mechanism for calibrating and fixing the workpiece at the position of the tilting of the petals, consisting of a pusher 44 fixed on the slider 43, and a guide pin 45 with a spring 46 attached to the end of the left clamp 47 on the pusher. 44, a bracket 48 is fixed, in which a screw stop acting on the rod 49, mounted for translational movement in the tool plate 14, and a spring: mounted by a spring 50 to the screw stop, are mounted so that they can be adjusted.

The right clamp 51 is rigidly fixed to the clamping slider 52 mounted for movement in the bracket 53 and spring loaded from the left clamp 47 by an extension stretcher 54, one end of which is fixed on the hook 55 mounted on the slider 52, and the other end on the hook 56, mounted on the bracket 53.

The slider 52 is connected with the rod 49 by means of balls 57 placed in a closed curvilinear guide channel of the separator 58 with the possibility of moving along it. One movable end of a closed curvilinear direction of JUP (its separator channel is formed by a lever 59 fixed on the rod 49, and the second one by a lever 60 fixed on the slider 52..

Petal bending mechanism Consists of face cam 61, for-. shaft 62, fastened at one end, the other end of which is kinematically connected with an automatic machine drive, base 63, located in a vertical section, bracket 64, fixed on base 63, two-arm rotary spring-loaded lever 65, on one shoulder of which is a hinged roller 66, interacting with the face cam 61, of the bracket 67 with a groove in which the shoulder with the roller of the lever 65 is located, and the other arm of the lever 65 is adjustable with the lever-

ha 68 and at its end there is a groove 69, an additional central α-ram 70, mounted in a groove 71 of a cylindrical shape, made in a guide 72, rigidly mounted on a bracket 73, mounted on a tool plate 14. A portion of an additional central slider 70 mounted in a groove 71, is made in the form of a cylinder with a flat 74. On the matrix of the matrix 84 with respect to the sending 72 it is provided with a lid, behind-. mounted on the upper plane of the guide, while the plane of the bald 74, the upper plane of the guide 72 and the lower plane of the flange are at the same level. At the free end of the additional central slide 70, two ears are made, rotated at an angle of 45 to the vertical axis, in which a finger 75 is mounted, interacting with a notch 69 of the lever 65,

Two additional lateral slides 76 are mounted in rectangular grooves made in guide 72 at an angle of 40 ° to the plane of symmetry and closed by lids.

Additional side sliders 76 are associated with an additional central

the slider 70 by means of bifold levers 77, pivotally mounted on the axes 78, fixed in the guide 72, at one ends of the levers are grooves interacting with the protruding parts of the sliders 76, and on the other holes interacting with the rod 79, pressed into the slider 70.

Two punches 80 and 81 for bending the notched petals of a curved billet. mounted on axles 82, fixed in the side sliders 76, with the possibility of periodical interaction with their working wedge-shaped pointed ends with the face baldness 24, made on the mandrel 9, and spring-loaded plate springs 83 in the direction of the mandrel.

On the tool plate 14 fixed on the table of the machine, a matrix 84 is installed to separate the workpiece 19 from the tape. A guide 85 is installed on the upper plane of the die, having a groove 86 along the feed axis of the tape, equal to the width of the tape, and the guide 85 is pressed against the plane of the plate-shaped matrix 84

spring 87, inserted into the window, made in the matrix 84. On the lower plane of the matrix, a groove 88 is made, with which it is mounted on the protrusion 89

5 of a clamp 90 secured to the tool plate 14, the matrix 84 being supported by the lower plane on the upper plane of the clamp 90. The clamp 90 ensures the accuracy of the us5

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carved punch 8 with multiple removal and installation and has the ability to move in a vertical plane in the groove of the tool plate 14.

When the matrix 84 is re-threaded into the working position, it is installed together with the fixer 90 by means of a support bolt 91 installed in the bracket 92.

On the tool plate-14 set limit stop 93, limiting the movement of the workpiece 18 along the belt feed line.

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The machine works as follows.

The tape from the softening device 1 is fed by the mechanism 2 to the stamp 5, installed in the press 4, where the petals are cut by punching the U-shaped holes, then the tape is fed to the position of the workpiece 18 by the slot 8 at the slot 86 of the guide 85. the end of the workpiece 18 remains to lie on the mirror of the matrix 84, the middle rests on the forming presser 25, the left end lies on the stopper 93, the holder 7, the mandrel 9 and the punch 8, and the protrusions 31 of the pusher 20 are above the workpiece 19.

Thus, the workpiece 19, after being separated from the tape, remains oriented in a closed space and is prepared for transferring perpendicularly the feed lines of the tape to the bending position. In this position, under the workpiece 19, there is a brook 28 of the sliding mandrel 37, and the holder 7 stands so that the right end of the workpiece 18 can pass through the rectangular ledge 17 when it is transferred to the shaping position. Then, the pusher 30 pushes the workpiece 19. Into the grooves 42 of the guides 40 and 41. In this position, the workpiece 19 is supported from below by the guides 40 and 41, the forming clamp 25, and

xy no.axis covered with a cylindrical part 23 of the mandrel 9,

Then the mandrel 9 of the cylindrical part 23 presses the billet 19 to the forming clamp 25, and the poin 5 in the creek 28 of the sliding mandrel 27 presses the billet 19, giving it a waveform.

In this position, the sliding mandrel 27 of the front part, which has entered the Yu guides 40 and 41, rests on the upper edge of the bending punch 38. After the bending ends of the workpiece, the punch 36 moves up, the sliding mandrel 27 moves back, and the wave-like workpiece remains sandwiched between the clamp 25 and the cylindrical part 23 of the mandrel. The punch 38, lifting up, bends a wavy workpiece on the cylindrical part 23, giving it the shape of a sleeve. In this case, a part of the cylindrical surface of the sleeve is obtained on the forming clamp 25 having an inner radius equal to the radius of the semicircular groove 39 formed on the punch 38.

Then the punch 38 moves down and the mandrel 9 with the sleeve rises up

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to the initial position of the holder 7 In this position, the inner edge of the sleeve is clamped and simultaneously calibrated by the left 47 and right 51 clamps acting in the opposite direction and driven by one bending slider 4j3.

Punches 80 and 81, moving at an angle to the cylindrical part 23 of the mandrel, bend around the petals in the sleeve, while slipping with their sharp ends along the flips 24 and simultaneously turning on axles 81. Then the punches 80 return back, waste. d and the clamps 47 and 51. The finished sleeve is deflated by air through the rectangular grooves 21 from the cylindrical part 23 of the mandrel 9.

The use of the proposed automaton will allow switching to low-waste production technology of bushings using the entire width of the tape, increasing the utilization rate of the material from Oj35 to 0.9 and reducing the laboriousness of manufacturing the bushings per 1000 pcs. from 1.29 n / h to 0.39 n / h, free up equipment and production facilities.

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Compiled by S. Shibanov Editor L, Gratilo Tehred G. Gerber Proofreader M. Maksimishinets

3942/6

Circulation 783 Subscription

VNIISH State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

Claims (9)

1. AUTOMATIC BENDING MACHINE WITH A DRIVE FROM A CENTRAL GEAR, comprising a tape drive, a vertical plate, a press with a stamp mounted on a vertical plate, a central drive spindle mounted with the possibility of translational movement in a direction perpendicular to the plate, with a retractable mandrel fixed to it kinematically connected to the drive of the machine bending sliders, an instrumental plate in which the cutting and bending punches connected to the bending floor are located unami, restrictive emphasis for cutting the tape, a cutting die, a retractable mandrel, a workpiece pusher, a mandrel and a clamp, characterized in that, in order to expand technological capabilities by manufacturing parts ^ type bushings with notched and .bent outward petals of a U-shaped shape, axis which is directed along the forming sleeve, the machine is equipped with a mechanism for folding the petals, consisting of a face cam connected to the drive, an arm connected to a vertical plate, a two-arm rotary spring-loaded growl ha, pivotally mounted on the bracket with the possibility of interaction with one shoulder with an end cam, a guide with grooves associated with a vertical plate, an additional central slider installed in one of the grooves of the guide with the possibility of translational movement in the direction perpendicular to the plate and connected with the other lever lever , two additional lateral sliders, each of which is installed in another groove of the guide with the possibility of translational movement to the axis of the mandrel in an inclined plate to _t direction and is connected with the additional central slider by means of levers pivotally mounted on the guide, one shoulder of which is connected with the additional central slider, and the other is installed with the possibility of interaction with the corresponding additional side slider, two punches for bending the notched petals of the bent workpiece, each of which is pivotally mounted on the corresponding slider with the possibility of periodic interaction with its working wedge-shaped pointed end from the side surface Tew mandrel and spring-loaded plate springs in a direction towards the mandrel, a mechanism for fixing the workpiece on the flange lobe position consisting of a spring-loaded clamping slider, two clamps mounted on opposite sides of the mandrel with the possibility 124 by translational movement towards each other in the horizontal plane, with one clamp mounted on a bending slide and spring loaded towards the mandrel, and the other mounted on a spring loaded clamping slide kinematically connected to the bending slide by means of a rod interacting with each other and. balls placed in a closed curved guide channel with the ability to move along it. 2. Automatic machine according to π, 1, characterized in that the guide of the folding mechanism of the petals is provided with a cover fixed on the upper plane of the guide, made in the guide groove, in which the additional central slider is located, has a cylindrical shape, and the additional central slider _l has the shape of a cylinder with flat, while the plane of the flat, the upper plane of the guide and the lower plane of the lid are at the same level, sections of two additional lateral sliders of the folding mechanism of the petals located in the grooves guide rail, made in the form of a rectangular parallelepiped, additional connection. A central central slider with a two-arm rotary spring-loaded lever pivotally mounted on an arm and a two-arm rotary lever pivotally mounted on a guide are made in the form of fingers mounted in an additional central slider, one of which is installed in a groove made in a lever mounted on an arm and the other in the hole made in the lever mounted on the guide. 3. The machine according to p. 1-2, characterized in that it is equipped with a holder mounted in the tool plate with the ability to move in the vertical direction and kinematically connected with gy. 'side slider on which the cutting punch and the mandrel with the working part are cylindrically fixed, and the clamp is mounted in the tool plate motionlessly under the mandrel with the possibility of periodic interaction with it, while a rectangular ledge is located at the end of the cutting punch, located 381 along the lateral side of the punch adjacent to the mandrel, on the protruding working part of the end of the cutting punch, there is a through trapezoidal groove directed perpendicular to the ledge, the opposite sides of which form cutting edges, and the ledge surface of the cutting punch located in the lower part of the mandrel forming its cylindrical surface and the end face of the holder lie in the same horizontal plane. 4. The machine according to claim 1, 3, comprising the fact that on the sides of the mandrel two flats are made, located opposite the punches for bending the petals. 5. The machine according to p. 1-4, characterized in that the retractable mandrel for bending of individual sections of the workpiece is made with two forming end sections of the workpiece by cylindrical streams located at the edges and a through groove located along it, which serves to place an emphasis in it, the workpiece pusher to the next position is mounted on a sliding mandrel and is made in the form of a plate with two persistent protrusions at the end that abut the broaches of the sliding mandrel on the side of the vertical plate, and a through groove coaxial with the groove movable mandrel, on the lower surface of the ledge of the cutting punch and the lower end of the holder supporting this punch, grooves are made opposite the corresponding thrust protrusions of the workpiece pusher, the punch for bending the end sections of the workpiece is installed above the retractable mandrel and the mandrel with the possibility of periodic interaction with a sliding mandrel while a groove is made in it for accommodating the mandrel, and a punch for bending the sleeve is mounted below the mandrel with the possibility of periodic interaction with it, while: and its working end is made by a stream in the form of a half-cylinder in the lower part of which a blind groove is made to accommodate the stop. 6. The machine according to claim 1-5, characterized in that the punch for bending the sleeves is provided with two guides for the workpiece, mounted on either side of it with the possibility of simultaneous simultaneous movement, on the upper end of each of the guides for the workpiece from the side adjacent to the punch is made on a part of the width of the guides of the ledge facing the vertical plate, while the lower surface of the ledges is located in the same horizontal plane with the upper end surface of the clamp. 7. The machine according to p. 1-6, characterized in that at the upper end of the bending punch bore, a bevel is made located along the side facing the central spindle. 8. The machine according to claim 1-7, wherein the end face of the step interacting with the mandrel has a working surface, the shape of which corresponds to the cylindrical surface of the mandrel. 9. The machine according to claim 1-8, characterized in that one shoulder of the rotary spring-loaded lever of the petal bending mechanism is made with the possibility of adjustment along the length.