DD137988B1 - METHOD FOR AUTOMATED CUTTING AND PREPARATION OF VEINS - Google Patents

Description

Field of application of the invention

The invention relates to a method for automated cutting and confectioning of wires, in particular for motor vehicle power lines

Characteristic of the known technical solutions

There are two international procedures in this field: the feeding process and the deduction procedure

 In the case of the preloading method, the wire is advanced by means of tangentially arranged rollers for subsequent cutting and stripping. To assist the thrust movements, compressed air is blown along the length of the vein at longer lengths. The speed of Vorschubbewcgungen is kept by the condition for compliance with prescribed length tolerances within narrow limits. Bai increased speed increases namely the slippage at the idle rolls considerably. In addition, then often occur processing errors due to compression of the wires.

In the haul-off process, the vein is gripped by a gripper and advanced to a predetermined length. The gripper is connected to a guide rope on which a fixed length section will travel the back and forth motion of the gripper as the vein is withdrawn. Although this ancestor allows a higher piece performance; essential parts of the apparatus operating according to this method,

especially the guide rope, but are extremely stressed and wear out very quickly, which leads to frequent failures.

In both methods, the wire is intermittently pushed or pulled from standstill over acceleration and deceleration until the next stop to the intended length.

During the stoppage of the conveying movement, the wire is cut, stripped and transferred to the subsequent working stage for assembly.

The main misdemeanors of the methods used are:

- A per unit time limited by exceeding the length tolerances of the wires and increased wear of the devices.

- A missing magazining of the wire for automated further processing

- A lack of space-saving merging of large wire lengths for the intermediate transport for subsequent automated further processing

The technical reasons for these slopes1 are:

- The unsteady, linear conveying movements at relatively low speeds due to the repeated acceleration and deceleration when feeding or deducting the wire lengths

- The slip of rollers arranged tangentially to the wire at a higher feed rate

- The variety of required bending changes of the guide cable or, the switching of the funding by the cyclic back and forth movements of the gripper

- to classify the foaming loops, the lamination of veins and the assembly of large vein lengths directly into the process to be performed

Object of the invention

The object of the invention is to provide a novel method for the automated cutting and assembly of wires with significantly higher unit power per unit time and new process steps.

_ 3 ·

for I.Iagazinieren of wires and folding large wire lengths as a prerequisite for the subsequent automated joining and forming of motor vehicle power lines to create.

Explanation of the invention of the invention

The object of the invention is to develop a method with which steady Förderbewejungen of the wire lengths can be performed at high speeds and Ъеі large power wires can be deducted slip-free scale, the cyclic back and Hückbov / egungen, the associated deceleration and acceleration processes when the length of the wire has been deducted, the magazining of the wires and the folding together of large wire lengths have been systematically integrated into the process steps.

According to the invention, this object is achieved in that one or more wires around the I.Iantelfläche a body having a regular axialsymmotrische or Zentralsyiimetrische base, with at the same time in recesses of two inserted into the lateral surface, arranged in parallel, movable comb-like Ilagazinen, in a predetermined Helix has been braided.

The magazines and cores are conveyed in the direction of processing along the length of the lanthanum surface at a speed adapted to the speed of eotation to produce the helix. Before the end of the labrum surface, the veins are clamped in the magazines and cut through between the parallel lagazines during transport. Subsequently, the magazines are accelerated with the veins accelerated and stored for the transition from steady to a cyclic transport. The intermediate spacing of the parallel laminates is increased for the subsequent processing of both ends of the wires. Then the laminates are fed cyclically to the equipment for stripping and assembling simultaneously a larger number of pieces and finally stacked for removal for automated further processing of the assembled conductors.

According to the invention, the bangen s to be produced of the individual wires by the circumference U of the planar curve dor central axis of a vein around the body and the Magaζinaussparungen for the wires and by the slope h. the helix

oo 0 5 determined according to the relationship s = (Ur + h) ¹ ^ and preferably produced as graded raster lengths ·

Finally, the invention provides that long wires after cutting are placed in shortening loops, which are preferably V / -shaped. "

The advantages of the invention consist primarily in a significantly faster removal of the wires and in the multiplication of the comparable unit performance during assembly compared with the methods used hitherto. This leads to significant savings of working hours, workplaces, mechanical engineering services and production areas.

The fundamentally new technical principles of action continue to develop the basic scientific and technical structure in the automated production of assembled wires to a considerably higher technological level.

At the same time, the decisive prerequisites for the subsequent automated joining of multi-core cables and the automated forming of bundle bundles are created «. This makes it possible to introduce new technologies that can not yet be realized with a high societal benefit.

embodiment

The invention will be described in more detail with reference to an exemplary embodiment with reference to schematic representations, wherein the following cross sections are shown:

Fig. 1 Base of the body '

Fig. 2 Conveying movements of the magazines Fig. 3 sagging wire

Fig »4-μ * ~ shaped folded vein

1 and 2, a wire 1 of 2 mm diameter is wound around the lateral surfaces 2 of a body whose base 3 is a regular

·· »5 -

Bony hexagon with sides of 799 ии length is wound in a helix with the pitch of 50 mm.

The cores 1 are simultaneously arranged in recesses 4 of two parallel, comb-like, movable magazines

5 out, which are inserted in the middle of the LIantelflächen 2.

The magazines 5 and the wires 1 are in the processing direction

6 further conveyed along the lateral surfaces 2 at a speed of 50 mm per revolution of the wrapping. Before Jsäido the lateral surfaces 2 v / earth the wires 1 clamped in the magazines 5 and then cut through between the parallel magazines 5.

Subsequently, the magazines 5 are preceded with the cores 1 and accelerated and stored for a transition from the steady state to a clocked / iron conveying process.

In order to have space for the subsequent processing of both wire ends 7, the distance between them parallel LIagazine 5 is increased. The magazine 5 are then cyclically fed to the devices 8 for stripping and packaging of a larger number of pieces at the same time and finally stacked for removal for automated processing of the assembled wires 1.

The length s of a wire is in the. example given in the following:

The circumference U of the plane curve of the central axis of a vein around the body is 6 χ (799 + 1) mm = 4800 mm »With a slope h of 50 mm, the relationship for the length of the helix to be calculated arises

s = (4800 ² + 5O ² ) ° ' ⁵ mm s = 4800 mm

For larger wire lengths, the circumference U of the flat curve of the center axis of the wire around the body is approximately equal to the length of the helix. The influence of the different wire diameters on the manufactured core lengths is in the range of the permissible longitudinal tolerances. For the manufacture of prefabricated aisles, the introduction of graded load lengths is expedient.

To produce a TIT-shaped shortening loop, Pig. 3 and 4 the original elongated wire loop 9 in the Lutte 10 raised and simultaneously pulled down in the middle 11 of the resulting partial loops ·

Claims (3)

invention claim 1 method for the automated sonside and harnessing of veins, characterized in that one or more veins (1) around the I.Iant elf pool (2) of a body having a regular axisymmetric or central symmetric base (3) with at the same time in recesses of , two, in the lateral surface (2) inserted, arranged in parallel, movable comb-like magazines (5) wound in a predetermined helix that the magazines (5) and the wires (1) in processing (6) along the LIantelflächö (2) with a speed adapted to the speed of rotation for producing the helix, that the wires (1) are clamped in the magazines (5>) before the end of the lateral surface (2), that the wires (1) are conveyed between the parallel magazines (5) cut through (12) that the lagers (5) are then accelerated with the cores (1) and stored for the transition from steady to intermittent transport, that the interspace of the parallel Liagazines (5) for the subsequent processing of both wire ends (7) is increased and that the magazines (5) of the devices (8) for stripping and packaging of ei simultaneously supplied in large numbers in cycles and finally stacked for removal for automated further processing of the assembled core. 2 » method according to item 1, characterized in that the s to be produced s of the individual wires by the circumference U of the planar curve of the i.Iittelachse a vein around the body and the Llagazinaussparungen for the wires and by the slope h of the helix after the relationship s = (U ² ₊ h ² ) ° ' ⁵ determined and preferably manufactured as graduated grid lengths · Method according to items 1 and 2, characterized in that long wires after cutting are laid in shortening loops, which are preferably W-shaped · In addition 2 sheets of drawings To do this, draw 2 pages