Method of producing twisted rope from bars and device to this end

FIELD: process engineering.

SUBSTANCE: invention relates to machine building and may be used for twisting bars into rope at lathes. Proposed method consists in drawing bars through decelerating assembly and guiding assembly, jointing them together, securing in fastening assembly and twisting. Note here that decelerating assembly and guiding assembly are mounted on lathe slide. Securing assembly is arranged in lathe chuck. Bars are twisted on revolving the chuck and slide feed equal to rope bar screw line pitch per one revolution of chuck. Device comprises bar decelerating assembly, guiding unit with bar drawing channels, joint assembly, bar securing and twisting assemblies. Said decelerating assembly, and guiding unit are equipped with means to mount them on lathe slide while bar securing unit allows its mounting in lathe chuck to make twisting assembly.

EFFECT: production of twisted rope at lathe with no modification of lathe.

5 cl, 1 dwg

 

The group of inventions relates to methods and devices for processing wire and can be used for Curling rods in the cable, for example in the manufacture of stranded coil springs with irregular feature.

A known method of manufacturing a stranded helices, implemented by the device for manufacturing a stranded helices (U.S. Pat. EN 2243845, IPC7B21F 3/04, publ. 10.01.2005). The method consists of pulling rods wound on the reel, through the brake element, a collection of threads, the tension regulator, a leader and shaper of the beam. For implementing the method uses a special device containing the coils, brake element, a collection of threads, the tension regulator, a leader and shaper of the beam. Subsequent winding coils carried out on a lathe.

The drawback of such a method and device is that they allow you to get just a bunch of rods and do not provide their twisting, which is necessary for manufacturing springs with irregular characteristics. In addition, to implement the method requires special equipment, which is not always available on an industrial enterprise.

Known another method of manufacturing twisted wire, which is realized with the operation of the device for manufacturing twisted wire (U.S. Pat. EN 59633 U1, IPC D07B 3/00 (2006.01), publ. 27.12.2006) Method is the rods reach across the node braking and smart host, connect, fasten the attachment rods and recoil. For implementing the method uses a special device containing established on the basis of the downstream node of the braking rods, a smart host with channels for pulling rods, joints, fasteners and Posiva bars.

In this way, and when using such a device of the rods get twisted wire for the manufacture of springs with irregular characteristics. However, to implement this method also requires special equipment, which is not always available on an industrial enterprise.

The objective of the proposed group of inventions is to enable the manufacture of woven rope on a lathe - the equipment available at each industrial enterprise.

A single technical result achieved in the implementation of the claimed group of inventions is to provide the possibility of manufacturing twisted wire when installing parts on a lathe, the rotational movement of the Chuck of the machine and the translational displacement of its support with a given flow.

The problem is solved by improved method of manufacturing twisted wire from bars, rods, Zack is causecast is the rods reach across the node braking and smart host, connect, fasten the attachment rods and recoil.

This improvement is that the site of inhibition and smart host set on the carriage of a lathe, the attachment rods mounted in the Chuck of a lathe and recoil rods by rotation of the cartridge and carriage feed per revolution Chuck equal to the step helix rods rope.

Such operations method allows to obtain twisted rope, using a lathe, available at any industrial enterprise without additional modernization, with the rotational movement is provided by the Chuck of the machine, the forward - moving it to the caliper with a given flow.

In addition, when pulling rods through a smart host their decline relative to the plane perpendicular to the axis of the cartridge at an angle equal to the angle of rise of the helix rods cable that allows you to improve the quality of the cable by eliminating deformation of the rods when they are svidanie.

The problem is solved also by the improvement of an apparatus for implementing the method of manufacturing twisted wire from rods containing the node braking bars, a smart host with channels for pulling rods, joints, established the I and sviva bars.

This improvement is that the node braking rods and guide site have items for mounting on the carriage of a lathe, and the attachment bar has an element for mounting in the Chuck of a lathe for education site sviva.

This embodiment of device nodes allows you to get twisted rope, using a lathe, available at any industrial enterprise without additional modernization, with the rotational movement is provided by the Chuck of the machine, the forward - moving it to the caliper with a given flow.

In addition, the channels of the sending node is located with an inclination to a plane perpendicular to the axis of the cartridge at an angle equal to the angle of rise of the helix rods cable that allows you to improve the quality of the cable due to the exclusion of additional deformation of the bars.

In addition, the node connecting rods and attachment rods made in one piece, thereby simplifying the device.

The group of inventions is illustrated by a drawing which shows the proposed device installed on a lathe.

The device for implementing the method of manufacturing twisted wire from rods 1 contains node 2 braking bars 1, the smart host 3 channel 4 for pulling rods 1, the nodes of the connections 5, attachment 6 and sviva 7 pru the Cove 1. Node 2 braking rods 1 and the guide node 3 are the elements to be installed on the caliper 8 lathe 9 and the mount 6 rod 1 has an element for mounting in the Chuck 10 lathe 9 for education site sviva 7. The channels 4 of the sending node 3 are arranged with an inclination to a plane perpendicular to the axis of the Chuck 10, the angle α equal to the angle of rise of the helix rods rope. In the above embodiment, the connection node 5 and attachment 6 bars 1 made in one piece.

The method is as follows. Node 2 inhibition and smart host 3 mounted on the support plate 8 lathe 9, the connection node and the mount 6 rod 1 is installed in the cartridge 10 lathe 9. Rods 1 stretch through node 2 inhibition and smart host 3, in which they rejected with respect to a plane perpendicular to the axis of the cartridge at an angle α equal to the angle of rise of the helix rods rope. After that, the node connections 5 connect them to the beam and the ends of the rods 1 are secured in attachment 6. The other ends of the rods 1 left free, which prevents twisting of the rods 1 about its own axis. Rotation of the cartridge 10 with fixed therein by connection node 5 and attachment 6, made in one piece, twist the rods 1, providing the required parameters for the helix line of travel of carriage 8 is but one revolution of the Chuck 10, equal step helix cable. The result is a cable with a predetermined pitch and elevation angle of the helical line of his bars.

The proposed method and using the proposed device were manufactured woven three-core cable for the coil spring with irregular feature on the lathe C. Three rod length 1000 mm, diameter 1 mm of steel 85 was extended through node 2 inhibition and the guide node 3, installed on the support plate 8 lathe 9. In connection node 5 connected them in a bun and secured to the attachment 6 bars 1, is installed in the cartridge 10 lathe 9. The cartridge 10 is rotated with a frequency of n=31,5 rpm Rods 1 was built, providing the required parameters for helix cable feed caliper 8 in one rotation of the cartridge 10, is equal to s=7 mm/Rev. In the pilot node rods 1 was rejected with respect to a plane perpendicular to the axis of the Chuck, on the angle α=73°, equal to the angle of rise of the helix rods rope. Then from the resulting rope on a lathe manufactured a spring having a desired uneven response.

Thus, the use of the proposed method and device enables the manufacture of woven rope from bar stock on a lathe - the equipment available at each industrial enterprise without additional upgrades.

1. A method of manufacturing twisted wire SprutCAM on a lathe, namely, that the rods reach across the node braking and smart host, connect, fasten the attachment rods and recoil, while the node braking and smart host set on the carriage of a lathe, the attachment rods mounted in the Chuck of a lathe, and a strand of rods carried out during the rotation of the cartridge and the carriage feed, equal to the step helix rods rope, one revolution of the Chuck.

2. The method according to claim 1, characterized in that when pulling rods through a smart host their decline relative to the plane perpendicular to the axis of the cartridge at an angle equal to the angle of rise of the helix rods rope.

3. Device for the manufacture of woven rope from bar stock on a lathe, containing the node braking bars, a smart host with channels for pulling rods and joints, fastening and sviva bars, while the node braking rods and the guide unit is designed with elements for mounting on the carriage of a lathe, and the attachment bars are made with an item to install it in the Chuck of a lathe with the formation of the node sviva.

4. The device according to claim 3, characterized in that the guide channels of the node with an angle to the plane perpendicular to the axis of the Chuck of the lathe, by an angle equal to the angle of the lifting screw line the bars of the rope.

5. The device according to claim 3, characterized in that the node connecting rods and attachment rods made in one piece.



 

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