Device for the manufacture of stranded springs
The invention relates to the manufacture of stranded springs in engineering and other technical fields. The technical result of the device is synchronizing and combining operations strand rope and coiling wire on a mandrel with a simultaneous twisting and stretching of the wire. This is achieved by the carriage of a lathe mounted spool containing coils mechanisms for twisting and stretching the wire, for example, is placed radially on the spool so that the drive gear coils obkatyvalisj around stationary and located on the same axis with the Central spool gear. The spool is rotated by means of shaft with keyway and placed in its housing set of gears with key from the shared drive. 6 Il. The invention relates to the manufacture of stranded springs in engineering and other technical fields.It is known that the destruction of the stranded spring initially destroyed one lived without violating the integrity of a spring that allows it to detect malfunctions of the spring until the shut it down and avoid sudden failure of the product. This increases the reliability and safety of the work, the poet is.From book 2 "machine Parts" under the editorship of Dr technology. Professor N. With. Acerina (State Scientific and technical publishing house engineering and shipbuilding literature, Moscow, 1953, page 238) it is known that the process of manufacture of stranded springs is divided into several operations, including: 1 - svidanie rope on special machines; 2 - acceptance of cable (display cable and measuring its diameter and spacing); 3 - wrapped springs from the cable using a different machine, the mandrel is specially selected diameter (power cable tension when electric current is applied to the mandrel affects the position of the point FKfracture characteristics on the power chart, spring).Special machines consist of an actuator, rotary suepayday parts (spools) installation frame and the supporting rollers, crimping device with the other hand and switalski dies (eyes), the traction mechanism and the transport mechanism for winding the rope on the take-up spool (672 B-90, Bukstein M. A. "the Production and use of steel wire rope, metallurgy, 1973, Moscow, page 130).To winding machines include lathe ("Processing of materials by cutting", C. S. Nekrasov, Moscow, VO "Agropromizdat", 1988, page 93), the basic units to the em 4, the tailstock 5 (Fig. 1). Machine control is carried out: handle of the gearshift; arm switching element is increased step; fungus control for cutting right and left threads; handweel manual longitudinal movement of the carriage; a slider with a button to turn on and off a rack and pinion gear apron; handle manual lateral movement of the support; push-button station; a handle for manual movement of the upper part of the support plate; power button quick movements of the caliper; arm enable, disable, reversing the longitudinal and cross feeds of the support; handles turned on, off, and reverse the spindle; a handle include uterine nuts apron; arms control box feed.On this machine, thanks to its wide versatility avivausa as stranded from the finished cable, and single spring of the rod (wire). For this purpose, the spindle has three jaw Chuck 6 for securing it to one end of the mandrel 7 for winding springs. The other end of the mandrel 7 support center tailstock 5. Cable (wire rod) is passed through the grommet (eyelet), mounted on the slide holder. Longitudinal carriage feed is oilrich springs requires two machines and two machine operations, what unproductive.A device (Fig. 2) copyright testimony 453212 with the formula of the invention: "Device for winding elongated material, mainly wire containing accommodated in the housing, the housing carrying the coil with the stock wire and the drive gear, characterized in that the purpose of regulation in the process of unwinding efforts twisting and tension it is provided with a coaxially installed with the yoke and rigidly associated bushing and flange, having performed on its outer surface spline grooves, and gear supplied mounted inside parallel to one another friction disks that are in the grooves of the sleeves.A disadvantage of this device is the inability to manufacture a multi-strand coil springs.It is also known a device for the manufacture of stranded helices, which contains a mandrel for winding the spiral and the mechanisms of rotation of the mandrel and the spool on which are mounted coil with the wire (ed. St. USSR 1378996, CL 21 F 3/04, 07.03.1988). However, the known device is also not suitable for the manufacture of a multi-strand coil springs.The present invention is to develop a device for the manufacture of stranded springs for the NYM twisting and stretching of the wire.The technical result is achieved in that the device comprises a mandrel for winding the spring, the mechanism of rotation of the mandrel, and mechanism for moving the spool along the mandrel with movable along the mandrel sleeve for strand rope and spool reels containing accommodated in the housing ring, bearing retaining coil with the stock wire and the drive gear fitted coaxially installed with the yoke and rigidly associated bushing and flange, having performed on its outer surface spline grooves, and gear supplied mounted inside parallel to one another friction disks that are in the grooves of the sleeve. The coil is mounted on the spool radially so that the drive gear coils obkatyvalisj around located on the same axis with the spool stationary Central gear and the spool is rotated by means of shaft with keyway and placed in its housing set of gears with key from the shared drive.For the manufacture of stranded springs with the Central housing on the basis of the spool on the same axis with the spool may be located samoustraniajutsia spring-loaded spool of wire for the Central veins.The proposed device allows you to produce mn is a mandrel with a simultaneous twisting and stretching of the wire.In Fig.1 shows a lathe.In Fig.2 shows coil on the author's certificate 453212.In Fig. 3 shows a diagram of the proposed device for the manufacture of stranded spring.In Fig.4 shows the spool of the device.In Fig.5 depicts a cross-section of the drive shaft with keyway.In Fig.6 depicts the stranded spring.The device consists of the following components and parts (Fig.3-5).Gearbox 1 with built-in motor is connected with a box of feed 2 and the drive shaft 14 of the spool 10 by means of the guitar 3. Sleeve (peephole) 8 fixed in the tool holder carriage (conventionally not shown) and is located in the immediate vicinity of the mandrel 7. One end of the mandrel is fixed in the three jaw Chuck 6 gear box, and the second end of the mandrel is supported by the tailstock center 5 devices. Coil 9 is located on the spool 10. The coil 11 is attached to the housing 4 of the spool 10 is installed on the caliper. The drive shaft 14 with the keyway through pins 13 and set of gears 12 is connected with the Central gear 15 of the spool 10 and transmits rotation from the gear box 1 on the spool 10. Lead screw 17 feed box interacts with the caliper.Works eliminate the marks in Fig. 2. The wire from the coil is passed through the grommet (eyelet) 8 and pinch on the mandrel 7. Then turn the motor device. When this happens the following.1 - Spool 10 with the location of the coils 9 is rotated in the housing 4 of the spool in the desired direction through the impact of the drive shaft 14 and a set of gears 12 on the gear of the spool 15. This drive gear coils 9 obkatyvalisj around located on the same axis with the spool stationary Central gear 16.The Central wire is stretched between the coil 8 and the mandrel 7 and is the basis of multi-core spring core. Her wound and sbivaetsya in the cable wire of the coils 9. In the absence of a Central wire rope sbivaetsya without it.2 - Frame 7 rotates and pulls the wire of the spring coils 9 and spool stranded in the Bush (the eye) 8 the cable itself. Mounted on the support sleeve (peephole) 8 and the spool 10 are moved along the mandrel 7, the forming step nalivaeva the spring. The movement of the caliper is screw 17, and a step of movement is ensured by setting feed box 2 guitars and 3. Due to the rotation of the coils 9 and their designs are created the necessary efforts twisting and ragemojo device, it becomes possible to efficiently adjust the pitch and the angle of lay of the rope, efforts twisting and stretching of the wire on the test results just wound spring, and due to the presence of a common drive is achieved synchronisation nodes strand of rope and coiling wire on the mandrel. It is useful and contributes to the quality of the springs and performance of their production.
ClaimsThe device for manufacturing a multi-strand coil springs, comprising a mandrel for winding the spring, the mechanisms of rotation of the mandrel and the cops and the mechanisms of movement of the spool along the mandrel, movable along the mandrel sleeve for strand rope and revolving spool reels containing accommodated in the housing ring, bearing retaining coil with a stock of wire, and the drive gear fitted coaxially installed with the yoke and rigidly associated sleeve, having performed on its outer surface spline grooves, and a flange, and gear supplied mounted inside parallel to one another friction disks that are in the slots of the sleeve, characterized in that the coils are placed radially on the spool so that the drive gear reels are rotated, objetivas around located on the same axis with spoeg drive.
FIELD: medical technique.
SUBSTANCE: apparatus includes base supporting guides and carriage mounted with possibility of motion along guides. Rotary platform is mounted on base behind horizontal guides of carriage. On one edge of platform there is opening in which vertical shaping pin is arranged. Said pin is secured to base. On other edge of platform there is indicator of platform rotation angle. Guiding tube is mounted between said edges and pressing spring if arranged in parallel relative to said tube with possibility of axial motion. Adjusting and pressing screws are mounted respectively at both ends of said spring. Carriage includes clamping mechanism and handle moving carriage on guides. Member for controlled limitation of horizontal motion of carriage is mounted on base between horizontal guides of carriage.
EFFECT: possibility for simplified forming of curvilinear profile of distal part of bowden.
FIELD: manufacture of springs, possibly for furniture, particularly manufacture of springy mattresses for soft furniture.
SUBSTANCE: method comprises steps of feeding round cross section wire; forming and binding knots on supporting turns due to twisting wire end under predetermined pressure around supporting turn; before forming spring blank, imparting to wire out-off-round cross section or making spring blank from wire having out-off-round cross section. When wire end portion is twisted around supporting turn in contact zone of twisted wire and wire of supporting turn recesses are formed on portions of supporting turn wire having positive deflection from out-off-roundness due to creation of pressure exceeding preset value. Twisted wire is pressed-in to said recesses.
EFFECT: enhanced strength of knots, increased useful time period of spring, operational reliability of articles.
FIELD: making springs.
SUBSTANCE: device comprises unmovable plate, race for receiving spring, punch with a ball surface which is in a contact with the ball surface of the top insert, bottom insert mounted on the bottom plate, and screw surfaces with a stop made on the both inserts, which copy the profile of the end turns of the spring. The bottom unmovable plate is provided with stops and L-shaped guiding planks which are in a contact with the answering projections of the race and mechanism for moving the race from the setting zone and hollow of the spring to the working zone under the punch and back.
EFFECT: enhanced convenience and safety.
FIELD: making and testing springs.
SUBSTANCE: device comprises punch with ball surface, which is in a contact with the ball surface of the top insert, bottom insert mounted on the bottom unmovable plate, and screw surfaces with stop provided on both of the inserts. The screw surfaces copy the profile of the end turns of the spring. The bottom unmovable plate is provided with rectangular guiding supports, which are rearranged over the outer diameter of the spring. The rectangular guiding supports are secured to the bottom unmovable plate by means of radial T-shaped slots made in the plate.
EFFECT: simplified design.
FIELD: manufacture of jewelry articles, possibly in jewelry industry at making small springs of rod type locks of gold alloys.
SUBSTANCE: method comprises steps of forming wire of gold alloy by deforming during several stages at intermediate annealing procedures between said stages; at last stage of wire forming deforming alloy by drawing it at total reduction degree 65 - 85%; then winding spring of formed wire. In preferable variant of invention last stage of drawing is realized during eight passes at total reduction degree 77.8%. The most effective method of forming springs is realized at using gold of purity degree 585.
EFFECT: enhanced manufacturing effectiveness, improved quality of articles due to their enhanced elastic properties.
3 cl, 1 ex
FIELD: manufacture of helical compression springs operating at impingement of their turns in condition of elevated temperatures.
SUBSTANCE: after coiling spring with pitch more than that of ready spring, the last is subjected to heat treatment and shot-blast hardening. After thermal compression and scragging spring or simultaneously with said operations, turns of spring are subjected to plastic strengthening. In order to realize it, spring is compressed by action of load consisting of 10 - 300 F3 where F3 - spring force at maximum deformation.
EFFECT: possibility for making springs with improved dynamic strength and with accurate stable in time elastic characteristics.
FIELD: manufacture of helical compression springs operating at impingement of their turns in condition of elevated temperatures.
SUBSTANCE: after coiling spring with pitch exceeding pitch of ready spring, the last is subjected to heat treatment and shot-blast hardening. Then spring is compressed by action of axial load consisting of 10 - 300 F3 where F3 - spring force at maximum deformation. It is possible to perform secondary compression of spring by action of load increased in proportion to relation of target camber to camber value caused by first load. Spring may be subjected to action of vibration loads. In order to satisfy high demands made to force parameters of spring the last is dressed after twisting and ends of spring are ground and chamfered.
EFFECT: possibility for making springs with accurate and stable in time elastic characteristics.
FIELD: manufacture of jewelry articles, possibly manufacture of gold-alloy small springs of locks of snap hooks in jewelry industry.
SUBSTANCE: method comprises steps of winding from wire prepared by deforming alloy at several stage with intermediate annealing between said stages small spring; at last stage deforming alloy by drawing at total reduction degree exceeding 85% but less than 95%. Preferably drawing of wire is started from initial diameter of wire din = 1mm till final diameter df = 0.35 mm for 13 passes at total reduction degree 87.3%. Spring is made of gold alloy with purity 385.
EFFECT: enhanced elastic properties of spring, improved manufacturing process for realizing the method.
3 cl, 1 ex
FIELD: manufacturing and testing of spring, possible usage in industrial branches, manufacturing and using springs: mechanical engineering, aviation engineering, automobile engineering, tool-making industry, etc.
SUBSTANCE: device for contact predeformation of springs contains lower immobile plate and lower moving plate, mounted on which with possible re-mounting along outer diameter of spring are guiding supports for same. Spring is positioned between lower and upper inserts, on end surfaces of which screw surfaces are made, repeating profile of edge coils of spring. Inserts have stops, lower insert being positioned on lower moving plate between re-mountable guiding supports, and spring being mounted so that it is in contact by edge coils with screw surfaces of inserts and abuts by end of edge coils against stops of inserts. Upper insert is made with ball surface, interacting with ball surface of puncheon, held on lower immobile plate are guiding bars and stops, limiting edge positions of lower moving plate, which is provided with mechanism for its movement into working zone under the puncheon and backwards.
EFFECT: increased labor productivity during predeformation of springs and during adjustment of device for predeformation of springs with different sizes.
FIELD: technological processes.
SUBSTANCE: bar is heated up to the temperature that provides homogenisation of steel high-temperature phase. Then spring is wound from bar at its heating temperature. At that spring is subjected to turn-by-turn tempering. Tempering of every turn is carried out after its winding and after-winding ageing in time sufficient for steel polygonisation for complication of recrystallisation rearranging of its structure. Final thermal treatment of spring is carried out by means of its tempering.
EFFECT: higher strength and operational durability of produced spring.