Device for contact predeformation of springs

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

 

The technical field to which the invention relates.

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 the spring.

The level of technology

A device for contact samevolume springs containing 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 (As the USSR №348792).

The disadvantage of this device is the low performance: 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 the punch, which is unproductive and uncomfortable.

A device for contact samevolume springs, having to compensate for the end of time, the liner is mounted for movement along the axis and associated with Nagraj the guide mechanism with the screw, with the possibility of rotation around this axis, and the device is equipped with a friction disk clutch is placed in the Central hole of the insert and containing a spring-loaded rotating disks connected by means of splines with insert and screw. On the outer surface of the liner that is installed only with the possibility of rotation, the teeth, siteplease with the drive pinion, which is equipped with a device (As the USSR №419660).

The disadvantage is the low productivity in the installation and excavation of the spring.

The closest in technical essence and the achieved positive effect and adopted by the authors for the prototype is a device for contact samevolume springs, comprising a fixed plate, a movable plate with guide to install the spring, a ball bearing, a connecting plate, and the sleeve, and the guides are made in the form of plates with slots in which is located the spring, and the end surface of the movable plate is made grooves for moving guides, having a depth exceeding the value of the setting of jumper guides (A.S. USSR №643684).

The disadvantage, as with previous devices is the low productivity. It should be noted that the changeover devices for samevolume springs with different sizes of the outer diameter and the diameter is RA wire needs to be done changing all the working parts. To perform these operations in the working area of the press is impossible.

Disclosure of inventions

An object of the invention is to increase productivity when senegalian springs.

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 lower fixed and the lower movable plate, on which the rails of the support spring, support extrusions additionally have the ability to reinstall on the outer diameter of the spring, which is placed between the lower and upper liners, on the end surface of which is screw surface, repeating the profile at the coils of the spring and having lugs, and the bottom liner is located on the lower movable plate between resetting guides, supports, and spring is placed so to contact at the turns of the screw surfaces of the liners and rested on the end face of extreme turns in stops liners, while the upper shell is made with a spherical surface that interacts with the spherical surface of the punch, the lower fixed plate fixed guiding rails and stops limiting extreme put the I lower movable plate, which is equipped with a mechanism to move it into the working area under the punch and back.

Brief description of drawing

1 shows a section a-a of the device; figure 2 is a view in plan of the claimed device; figure 3 shows a section b-B of the groove to reinstall the guide bearing with locking bolt; figure 4. shows the section b-b of the bolt that secures the guide support.

The implementation of the invention

The device consists of a plug 1 having a spherical surface in the zone of contact with the upper spherical surface of the liner 2, the lower fixed plate 9 is attached by bolts 10 guiding plates 7, between which is located the lower movable plate 8 with guide bearings 3, which are fixed by bolts and nuts 6 and have the ability to reinstall on the outer diameter of the spring made along the lower movable plate 8 of the slots 17. On bottom of the movable plate 8 is lower shell 11 based on the guide support 3 spring 4. At the ends of each insert is made of screw surface with emphasis 5, repeating the profile extreme wrap samevolume spring 4. To lower fixed plate 9 is attached to the bracket 15 has mounted on the mechanism 14, which is connected by a rod 13 with the lower movable plate 8. On the lower fixed plate 9 are lugs 12 and 16, limiting kr is inie position of the lower movable plate 8 as it moves between the guide bars 7.

The device operates as follows.

The device is mounted onto the press table. The bottom plate 9 is fixed to the table of the press and the punch 1 to the upper plate of the press. The mobile plate 8 in the initial position in contact with the stops 16. In this position, the spring 4 is installed in the device so that it touched at the turns of the screw surfaces of both liners and rested extreme ends of the coils in the lugs 5 liners. After this movement of the rod 13 by means of the mechanism 14 to move the lower movable plate 8 between the guide bars 7 to 12 stops. Lower punch 1, compressing the spring 4, which is based on the guide support 3. Due to the presence of spherical surface on the punch 1 and the upper liner 2, and spiral surfaces with lugs 5 on both liners, the press force is distributed evenly across the diameter of the spring 4. After exposure under load raise the punch 1, the sliding plate 8 is moved by mechanism 14 and rod 13 to its original position by the stops 16. Then the spring removed from the device and measure geometric and strength parameters.

A changeover device for samevolume springs with other dimensions of the outer diameter and the wire diameter is carried out in the area, the spring moving the guide bearings 3 and replacing the liners 2 and 11.

These circumstances allow us to consider the proposed design is more productive, efficient and safe in operation.

Device for contact samevolume springs, containing the lower stationary plate and the lower movable plate, on which the rails of the support spring, characterized in that the guides supports mounted on the bottom of the movable plate with the ability to reinstall on the outer diameter of the spring, which is placed between the lower and upper liners, on the end surface of which is screw surface, repeating the profile at the coils of the spring and having lugs, and the bottom liner is located on the lower movable plate between resetting guides, supports, and spring is placed so that it is in contact at the turns of the screw surfaces of the liners and rested on the extreme end turns in stops liners, while the upper shell is made with a spherical surface that interacts with the spherical surface of the punch, the lower fixed plate fixed guiding rails and stops limiting the end position of the lower movable plate, which is equipped with a mechanism to move it into the working area under the punch and back.



 

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