DE4127843A1 - Automatic electrical cable preparation machine - feeds cable through guides to manipulator controlled to remove insulation and for connector before cutting to length - Google Patents

Abstract

The cable preparing machine uses an automatic process for preparation of cables to be fitted with terminal connections. Two main slides (1,11) move horizontally relative to a central manipulator (6) which has a combined cutter and crimping unit (7,8). Connectors are fed via a magazine element (10). Cable is fed through a nozzle and tube assembly (2,3,12,13) and insulation is removed form a section. The manipulator operates to secure the connector and the cable is cut to length. The machine is controlled by a personal computer. ADVANTAGE - Provides rapid and accurate forming of required cable lengths.

Description

The invention relates to an object of the genus Claim 1 from.

Machines and devices are known which strip the cable - 01 95 932 B1 to length
stripping DE 28 57 307 C2,
attach DE 31 21 235 C2,
stripping,
post P 38 12 460 A1.

Machines are also known which
cut to length,
stripping,
posting 20 53 492,
but only process so-called CRIMP contacts according to DIN 41 611 Part 3 of tape or belt, or could possibly also process bulk end pieces according to DIN 46 228 Part 4, such as DE 31 15 259 C2.

The problem with such a machine is the Assembly of endless cables (long material) with loose ones Contact clamps (bulk material end pieces) in the demand for Continuity, automation and variability. As special Another difficulty is the strong fanning out of the stripped wires. With suitable measures such as e.g. B. Twisting the strand before pressing the contact terminals could be addressed the problem; of course with an additional expenditure on equipment.

Another problem is e.g. B. in the so-called "control cabinet Ver wiring ", whether" channel "or" X wiring ", the enormous increase in consumption of cable and contact terminal material through the use of pre-assembled "standard lengths".

The object of the invention is to create a machine which the material consumption by manufacturing the cable "on site" with only the length actually required so to speak "at the push of a button", the fanning out as far as possible prevents the continuous and enables safe assembly of cables, and through simple, quick convertibility for several crosses cutting sizes or cross-sectional size ranges is suitable.

The problem is solved by the characteristic Parts of claim 1.

The machine consists of feeders for bulk material end pieces - such as wire end sleeves according to DIN 46 228 part 4 , cable lugs according to DIN 40 500, etc. - straightening section, cable transporter, length meter, cut-off, stripper, stop, control , Personal computer.

The characteristic parts of the machine according to FIG. 1, FIG. 2 and FIG. 3 are:

• - Carriage ( 1 ) and ( 11 ) (with assemblies already available as a so-called "purchased part" such as straightening section, cable transporter, length measuring device, cable clamp, therefore not shown in the figures!),
• - nozzle ( 2 ) and ( 12 ),
• - tube ( 3 ) and ( 13 ),
• - springs ( 4 ) and ( 14 ),
• - tube ( 5 ) and ( 15 ),
• - manipulator ( 6 ),
• - MA ( 7 ) (knife-anvil combination tool),
• - MH ( 8 ) (= knife-hammer combination tool),
• - bolt ( 9 ) (two),
• - magazine ( 10 ),
• - encoder ( 16 ),
• - stop block ( 17 ),
• - spring ( 18 ),
• - spring ( 19 ) (two),
• - plate ( 20 ),
• - ejector ( 21 ) (not shown)
• - slides ( 22 ), ( 23 ) and ( 24 ),
• - index ( 25 ),
• - Personal computer ( 26 ) (not shown).

By describing a working cycle, the functional how the machine and the characteristic parts are explained will:

• - machine in basic position; ie slide 1 and 11 in the most distant position from each other, cable clamp open and in cable clamp slide 11 there is the ready-made cable (in);
• - Removal of cable (in) leads assembly cable (i = n + 1) a,
• - Encoder 16 activates control,
• - Controller retrieves data to be manufactured from PC 26 ; the data are either taken from a file or calculated, at the same time a control cabinet with internals, their connections and a suggested installation are shown schematically on the monitor, as well as further information on the cable
• - Cable clamp carriage 1 actuated,
• - Stop block 17 moves to position 1 ; the difference in the longitudinal expansion of the washers for position 0 and position 1 in and opposite to the direction of passage corresponds to the length of the cable ends to be stripped, ie the washer for position 1 is adjustable or replaceable,
• - Carriage 1 approaches manipulator 6 ; tube 3 is stopped by the latter when the MA 7 is reached , so that until the slide 11 is stopped by the stop block 17 , the cable (i = n + 1) with the selected length to be stripped protrudes in the direction of the slide 11 beyond the cutting plane,
• - index 25 (adjustable) activated,
• - Slider 24 actuated; MA 7 and MH 8 move towards each other until index 25 stops slide 24 , - the cable (i = n + 1) is notched, slide 1 moves away from manipulator 6 ; the beginning of the cable (i = n + 1) is stripped and tube 3 is pushed by spring 4 over the stripped cable, this prevents possible or excessive fanning,
• - slide 24 and index 25 withdrawn; MA 7 and MH 8 are thereby pushed back and fixed by spring 18 ,
• - Stop block 17 moves to position 2 ; the difference in the longitudinal expansion of the discs for position 1 and position 2 in and opposite to the direction of passage corresponds to the preselected insertion length, ie the disc for position 2 is also adjustable or replaceable,
• - Magazine 10 filled with contact clamp; the magazine 10 consists of two structurally identical parts with cutouts, which face two hollow truncated cones with their smaller diameters and the contact clamp receptacle, the special arrangement of the bolts 9 - center bolt corresponding to the lower edge of the contact clamp receptacle in the magazine 10 - and the hollow cone jacket in magazine 10 , on which the contact clamp is supported, enable the magazine 10 to be opened by the contact clamp itself, so that no special opening mechanism is required, the closing of the magazine is effected by the two springs 19 ,
• - Manipulator 6 rotates 90 degrees in the direction of slide 1 , ie magazine 10 is located in front of the stripped cable start of the cable (i = n + 1),
• - Carriage 1 approaches manipulator 6 ; tube 3 is stopped by magazine 10 when it reaches it, but the cable (i = n + 1) is inserted into the contact terminal up to its stripped end - even if it was previously spliced open a little,
• - Slider 23 (adjustable) operated; MA 7 and MH 8 move towards each other - the contact clamp is pressed with the strand,
• - Slider 23 withdrawn; MA 7 and MH 8 are thereby also withdrawn and fixed by spring 18 ,
• - carriage 1 withdrawn; the cable end that has been struck, namely the beginning of the cable (i = n + 1), is pulled out of the magazine 10 (the opening or closing of the magazine 10 takes place in a known manner), so that again no special opening mechanism is needed
• - manipulator 6 turns 90 in the basic position,
• - stop block 17 moves to position 0 ,
• Carriage 1 and 11 move towards manipulator 6 ( FIG. 1),
• - Cable clamp carriage 1 opens,
• - cable transport to the specified length,
• - Slider 24 and cable clamp carriage 1 and 11 actuated; MH 7 and MA 8 cut the cable (i = n + 1),
• - Slider 24 withdrawn; MA 7 and MH 8 A are thereby withdrawn and fixed by spring 18 ;
• - Analogous to the previous version of the end of the cable (i = n + 1) processed;
• - machine in basic position; ready for next work cycle, which is determined by the removal of the cable (i = n + 1) is started.

Advantages of the machine

- reducing material consumption to minimum requirements,

• - permanent routing of the cable and permanent protection of the Stranded wire,
• - simple and robust construction,
• - Use of the same stripping or stop work stuff when editing both the cable start and the cable end,
• - Use of the same modules in two successive Cross-sectional sizes,
• - Quick convertibility to other cross-section sizes-Be suffice by replacing a few assemblies.

A work cycle with multiple tooling takes place analogous.

Claims (4)

1. Machine for the automatic assembly of long material with end pieces, in particular multi-fiber electrical cables with contact terminals, consisting of feeders for end pieces, straightening section, cable length meters, transporters, cut-offs, strippers, stops, controls, personnel computer characterized by
an optoelectronic transmitter ( 16 ),
a personal computer ( 26 ) which sends the length of the cable to be manufactured to the control system, the data either being taken from a file or calculated, while on the monitor of the personal computer ( 26 ) a control cabinet with internals, the connections thereof, a laying proposal and the data of the cable can be shown,
a manipulator ( 6 ) arranged transversely to the longitudinal axis of the cable and rotatable about its longitudinal axis,
a knife-anvil combination tool ( 7 ) with a V-shaped obliquely ground recess as a knife and a wedge-shaped recess laterally offset in the cutting plane as an anvil,
a knife-hammer combination tool ( 8 ) with an opposite to the knife of the knife-anvil combination tool ( 7 ) arranged V-shaped obliquely ground recess as a knife and an opposite to the anvil of the knife-anvil combination tool ( 7 ) arranged wedge-shaped projection as a hammer, which - namely knife-anvil combination tool ( 7 ) and knife-hammer combination tool ( 8 ) - both for cutting, notching and stripping the cable as well as for pressing the contact Clamping with the wire, through its recesses and the X-shaped and cross-arranged sliding blocks of the sliders ( 22 ), ( 23 ) and ( 24 ) not attached to the manipulator ( 6 ) are moved against each other when actuated,
a spring ( 18 ) which fixes knife-anvil combination tool ( 7 ) and knife-hammer combination tool ( 8 ) in a pushed-apart position,
a plate ( 20 ) on the end face of the manipulator ( 6 ),
an ejector ( 21 ) in plate ( 20 ),
two bolts ( 9 ) in plate ( 20 ),
a magazine ( 10 ) consisting of two identical parts, with recesses, which face two hollow truncated cones lying against each other with their smaller diameter and the contact terminal receptacle, and holes for the bolts ( 9 ), the lower edge of the contact terminal receptacle and the center of the bolt ( 9 ) lie in one plane, so that the contact clamp itself opens the magazine ( 10 ), namely by spreading the two parts of the magazine ( 10 ) by supporting the jacket of the truncated cone during the longitudinal movement into and out of the magazine, ( 10 ),
two springs ( 19 ) which press the two parts of the magazine ( 10 ) against each other, ie close the magazine ( 10 ), a stop block ( 17 ) adjustable in three positions with three different disks, which can be adjusted or exchanged in this way, that with them both strand lengths and insertion lengths of different cross-sectional sizes in interaction with slide ( 1 ), in the cable longitudinal axis lying tube ( 3 ) and knife-anvil combination tool ( 7 ) or slide ( 11 ), in the displaceable tube ( 13 ) and the knife-hammer combination tool ( 8 ) and the magazine ( 10 ) lying along the longitudinal axis of the cable, tube ( 3 ) being spring ( 4 ) into tube ( 5 ) or tube ( 13 ) by spring ( 14 ) in tube ( 15 ) is permanently pressed in the direction of manipulator ( 6 ), so that the cable or strand to be manufactured is mounted on the nozzle ( 2 ) mounted on the slide ( 1 ) to the outlet opening mounted on the slide ( 11 ) ( 12 ) perm anent is guided or protected, an adjustable index ( 25 ), which stops the notch of the cable sheathing slide ( 24 ) at a defined point. 2. Machine according to claim 1, characterized by two opposing magazines ( 10 ) and anvil parts. 3. Machine according to claim 1 and 2, characterized by on the plate ( 20 ) attached (s) anvil part (s). 4. Machine according to claim 1 to 3, characterized by the absence of the personal computer ( 26 ).