Device for contact making of springs

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.

2 dwg

 

The invention relates to the manufacture and testing of springs, namely, devices for improving the quality and performance of the spring by contact samevolume, and can be used in industries that manufacture and use spring - mechanical engineering, aerospace, automotive, instrumentation and other

The known device for contact samevolume springs described in the copyright certificates of the USSR №198747, 348792, 419660, 486233, 643684. The closest are devices for contact samevolume springs, AS described in the USSR №348792 and 486233.

Device for contact samevolume springs, AS described in the USSR №348792, contains a plate, placed her glass to install it tested spring loading mechanism with a device for balancing placed in two glass inserts with screw surface and emphasis, between which is mounted the tested spring, one of the inserts is mounted for rotation about the axis of the Cup, and the other can move along its axis.

When the device has a drawback: the installation samevolume springs in the device and the notch of the spring to measure the height of mites are distant from the operator of a hazardous working area of the press (under Poinsot who ω), that is not convenient and not productive.

To perform these operations in the working area of the press do not permit safety requirements.

Device for contact samevolume springs, AS described in the USSR №486233, contains the punch, clip, the diameter of which is by a small amount exceeds the diameter of the compressed until it touches turns to be tested springs, liners with supports.

When the device has the same drawback inherent in the known devices for samevolume.

An object of the invention is to develop a device, which allows in the working area of the press under the punch only the loading of the spring, and install in the device and the notch out of it samevolume spring to produce not in the working zone of the press, and in a safe and comfortable work area, close from the operator.

The technical result is achieved due to the presence of new elements of the device and new relationships, namely: the essence of the invention lies in the fact that the device for contact samevolume springs, containing the lower stationary plate, a holder for the spring, punch ball surface in contact with the spherical surface of the upper bearing shell, lower shell, located on the bottom plate, are performed on both liners helical surface with stop and repeat the profile is rainy coils of the spring, in addition to the lower fixed plate attached lugs and l-shaped guiding rails in contact with mating protrusions of the holder, and mechanism for moving the holder from the zone setup and measuring springs in the area and back.

1 shows a view in plan of the claimed device, figure 2 shows a section a-a of the device.

The device consists of a plug 1 having a spherical surface in the zone of contact with the upper ball liner 2, the holder 3 with samevolume spring 4, the guides l-shaped strips 5, attached to the bottom plate 6 by bolts 7. In the holder 3, with reciprocal projections is lower shell 8, which is tested by the spring 4. The lower plate is attached to the bracket 10 with the installed hydraulic (or pneumatic) cylinder 11, the piston rod 12 which is connected with the yoke 3. On the bottom plate 6 are 9 stops limiting the end position of the clip 3. At the ends of the liners are made helical surface with emphasis repeating the profile extreme wrap samevolume spring.

The device operates as follows.

The device is installed on the press. The bottom plate 6 is fixed to the table of the press and the punch 1 to the upper plate of the press, from which the press force is transmitted to the punch 1. The spring 4 and the upper shell 2 is installed in the holder 3 in the zone for installation and metering spring so the spring 4 has touched the extreme coils with coil surfaces of the liners and rested extreme end of turns in the lock liners. After that, by means of a hydraulic cylinder 11 and piston rod 12 of the clip is moved into the working area of the press, and then pulling the plug 1. When lowering of the punch 1, the spring 4 is compressed to a contact of coils, based on the internal diameter of the sleeve 3. In this case, due to the presence of spherical surface on the punch 1 and the upper liner 2, and spiral surfaces and stops on both ear force press evenly across the diameter of the spring. After the desired shutter speed under load sleeve 3 is moved by the cylinder 11 and piston rod 12 in the area of installation and removal for measuring the height of the spring. If necessary, adjust the height of the spring re-produce senegalian with the increased load. After the spring is removed from the device and measure geometric and strength parameters.

Device for contact samevolume springs, containing the lower stationary plate, a holder for the spring, punch ball surface in contact with the spherical surface of the upper bearing shell, lower shell, located on the bottom plate, are performed on both liners helical surface with emphasis repeating the profile extreme turns of the spring, the ex is different, however, to lower fixed plate attached lugs and l-shaped guiding rails in contact with mating protrusions of the holder, and mechanism for moving the holder from the zone installation and removal of springs in the working area under the punch and back.



 

Same patents:
The invention relates to the field of mechanical engineering

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.

2 cl

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.

1 dwg

The invention relates to the field of mechanical engineering and metallurgy and can be used in hardware industry in the manufacture of spring product type train wire terminals

The invention relates to the manufacture of stranded springs in engineering and other technical fields

The invention relates to the field of engineering, more specifically to the spring nuts for detachable connection of components operating in severe conditions, for example, at a constant vibration, and also to methods of manufacturing such nuts

The invention relates to the processing of metals by pressure, in particular to the equipment for manufacture of wire products, and can be used in mechanical engineering

The invention relates to the manufacture of stranded springs with given characteristics and is used in engineering and other technical fields

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.

1 dwg

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.

2 cl

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.

2 dwg

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.

2 dwg

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.

4 cl

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.

4 cl

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.

4 dwg

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.

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