SU1306630A1 - Apparatus for continuous coiling of helical cylindrical extension springs with catches - Google Patents

Abstract

The invention relates to the manufacture of helical coil springs with hooks and allows to simplify the design of the device. The device comprises a wire feed mechanism 2 mounted on frame 1, made in the form of drive rollers 3, 4, wiring 5, shaping mechanism, cutting mechanism and camshaft 6. The shaping mechanism has on the same shaft 7 a covered part 8 of the faceplate and a covering part 9 of the faceplate kinematically associated with 6 45. . . 30 со со:: Oi с сри.1

Description

camshaft 6. The covering part 8 of the faceplate has two guides 10 and 11 located on both sides of the wire feed axis 2. The guide 10 is inclined to the wire feed axis under

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angle 4b, in it a slide 12 is mounted with a winding stop 13, interacting with its groove with the end edge 14 of wiring 5. In the other guide 11, a rod 15 is mounted perpendicular to the axis of wire feed, which interacts with one end of the slide

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This invention relates to the manufacture of helical coil springs with hooks.

The purpose of the invention is to simplify the design of the device.

FIG. Figure 1 shows schematically an apparatus for continuous winding of helical cylindrical tension springs with hooks, a section; ma fig. 2, section A-A in FIG. one; in fig. 3 - view B in FIG. one; in fig. 4 is a view of B in FIG. one; in fig. 5 - rod with an adjustable ruler fixed on it; in FIG. 6; section G-D in FIG. five.

A device for continuous winding of stretching coil springs with hooks contains wire feed mechanism 2 mounted on frame 1, made in the form of drive rollers 3 and 4, wiring 5, shaping mechanism, parting mechanism, and camshaft 6. The shaping mechanism has on one shaft 7 encompassing 8 and encompassing 9 parts of the faceplate, kinematically associated with the camshaft 6. The encompassing part 8 of the faceplate has two guides 10 and 11 located on both sides of the axis along Wire 2 wires 2. Guide 10 is inclined to the wire feed axis at an angle of 45. It has a slider 12 mounted with a winding stop 13, which interacts with its groove to the end edge 14 of the wire 5. In another direction 12 through a fixed ruler 16 that is in contact with the finger 17, pressed in the half 12 "The covering part 9 of the faceplate is mounted on the neck of the shaft 7 by means of the sleeves 21, 22, it has a toothed crown 23 which engages with the toothed rack 24 connected to the cam 25 of the camshaft oh 7 is mounted in the frame 1. At the end of the shaft mounted gear 29 finds a conductive meshed with the rack 20 associated with the fist 31 similar knuckle 25. 6-yl.

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11 is mounted perpendicular to the feed axis of the rod 15, which at one end interacts with the slider 12 through an adjustable

ruler 16, in contact with the finger -17, pressed into the slider. The spring 18 is designed to move the slider 12 with the abutment 13 to its original position for winding. The contact between the finger 1 7 and the adjustable ruler 16 is provided with the same spring 18 installed between the slider 12 and the bottom of the hole made in the chuck face 8. The winding stop 13 is pressed to the slider by the bar 19, and for the axial adjustment thereof, a screw 20 serves. The shaft 7 is made integral with the covered part of the faceplate. The enveloping part 9 of the faceplate is mounted on the neck of the shaft 7 by means of the sleeves 21 and 22, it has a toothed rim 23 which engages with the toothed rack 24 associated with

 cam 25 of cam 6. Shaft 7 is mounted in frame 1 on bearings 26 and 27. At the shaft end, gear 29 is mounted on key 28 and meshes with rail 30 connected to cam 31, similar to cam 25, whose profile is shown conditionally and refined in the development of working drawings.

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The adjustable ruler 16 is installed j on with the possibility of rotation on the axis 32, and for fixing it in the required position serves screw 33. The part 9 ii.nanii; aii6bi has a profile sections o, b, c. interacting with the other end of the rod 15 through the roller 34 fixed on it.

The mechanism for cutting off the finished spring is made in the form of a movable knife 35 interacting with the end edge 14 of the wiring 5. It is fixed in a slider 36 installed in the guides of the bed 1 with the possibility of reciprocating movement

The knife 35 is installed with the possibility of adjustment relative to the wire feed axis by means of the screw 37, and the screws 38 are designed for fixing it in the required position. The drive of the slide 36 is made in the form of a two-armed lever 39 installed rotatably on the axis 40 and interacting with one arm with a fist 41 of the camshaft 6, and the other shoulder with the slider 36 through the axis 42, pressed into the said slider. The contact of the lever 39 with the fist 41 is made through its rollers 43 and 44. The profile sections, fe and c are made on the fist 43 mounted and fixed by means of the wedge 46 on the specified inner surface of the female part 9 of the faceplate.

The device works as follows.

The drive (not shown), which drives the rollers 3 and 4 of the wire feeder 2, and the camshaft 6 is turned on. The rollers 3 and 4 feed the wire 2 through the wiring 5. By the time the wire starts to exit the end 14 of the wiring 5 13 is in the initial position, i.e. in close proximity to the end of the wiring, as shown in FIG. 1. The coil support is brought to this initial position by the force of the spring 18, while the male 8 and the female 9 parts of the faceplate are in such a mutual arrangement that the end of the rod 15 with its roller 34 is installed in the hollow of the core section B Rotating rollers 3 and 4 feed the wire 2 through the wiring 5. When leaving the wiring 5, the wire abuts the surface of the groove of the winding stop 13, bends and twists into the hook. By the end of the winding, the first chains begin to turn.

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with covered portions and covered parts of faceplates. The rotation can be arbitrary with both clockwise and counterclockwise, preferably clockwise, if you look at the end of wiring 5, and it is carried out due to the rotation of the camshaft 6, and hence the fists 25 and 31. rotation affects the rails 24 and 30, and the latter causes rotation of gear 23 and 29. From gear 23, rotation is transmitted directly to the chuck face 9, and rotation from gear 29 is transmitted through the key 28 to shaft 7 and then directly covered part 8. During all around ota ztih parts chuck and, consequently, rotation of the coiling stop 13 comes wrapped .uchastka transition from the toe to the spring body, and its curvature commensurate with the curvature of the toe, i.e. the radius of the transition section is equal to the radius of the hook. This is achieved by the simultaneous rotation of both parts of the faceplates due to the equality of the speeds of movement of the coiling support and the fed wire. The winding of the transition section from the hook to the spring body ends when both sides of the faceplate are rotated through an angle of 90. After they turn, and consequently, the winding stop rotates through 90, the stand starts, i.e. with further rotation of the camshaft 6 and its cams 25 and 31, the winding stop remains in place. This is achieved by an appropriate fist profile. At the stop of the coiling stop 13, the spring body is wound. After winding a specified number of coils of the spring body, a further rotation in the same direction of both parts of the faceplate with a winding stop at an angle of 90 begins. In this case, a transitional region is wound from the spring body to the hook, which also has a radius of curvature equal to the radius of curvature of the second hook due to the conditions already indicated, i.e. due to the simultaneous rotation of both parts of the faceplates and the same speed of movement of the supplied wire and the speed of movement (rotation) of the coiling stop.

At the end of the second rotation of the coiling support by 90 °, the second hook is wound with its short arm (coiling support) for a short time. Camshaft513

The shaft with the fists continues to rotate. After winding the second hook, the wire feed is stopped, and further rotation of the distributor shaft with the fists rotates both parts of the faceplates in the opposite direction.

Simultaneously with the parts of the faceplate, the winding support turns to its original position. Thus, the winding support has a turn of 180 in one direction, a working stroke, and a turn of 180 in the other direction - idle. After the wire feed has been cut off, the finished spring is cut by the knife 35, which interacts with the end edge 14 of the wiring 5. The knife is moved by acting on the axis 42 of the lever arm 39 moving downwards (from the drawing) of the lever 41, rotating together with the distribution shaft. 6. After cutting off the finished spring, the wire is turned on, and the process is repeated, and before cutting off the finished spring, the slider 12 with the winding stop 13 moves away from the edge 14 of the wiring 5.

This retraction of the coiling stop is accomplished by mounting the roller 34 of the rod 15 to the area a, by means of an appropriate profile, for example

Claims (1)

25, obtained, as indicated, in the development of working drawings The invention The device for continuous winding helical cylindrical springs of tension with hooks, containing mounted on the frame wire feed mechanism in the form of drive rollers, wiring, shaping mechanism, cutting mechanism and camshaft, the fact that, in order to simplify the construction, the shaping mechanism is made in the form of male and female parts placed on one shaft, which are both kinematic are connected with the camshaft, the covered part of the faceplate is equipped with two guides located on both sides of the feed axis, one of which is inclined to the feed axis and a slider is mounted in it that carries the coiling stop mounted with the possibility of interaction with the end edge of the pipe and the second guide is located perpendicular to the feed axis; a rod is installed in it, at one end of which an adjustable ruler is fixed, to which the said slider is spring-loaded, and the other end is installed with the interaction with the profile areas performed on the inner surface of the female part of the faceplate. 25.37 Aa / 2.30 U / 7 ////////// ////////. 23.29 FIG. g in id 6 15 Type B Srig.Z 2 "four FIG. Buff but adjustable line .P FIG. five 75 Editor E. Sligan Compiled by U. Sukhov Tehred L. Oleinik Order 1481/7 Circulation 583 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 FIG. 6 Proofreader L. Patay