EP4519706A1 - Palette für einen leitungssatzautomat und verfahren zum herstellen eines leitungssatzes - Google Patents
Palette für einen leitungssatzautomat und verfahren zum herstellen eines leitungssatzesInfo
- Publication number
- EP4519706A1 EP4519706A1 EP23720818.6A EP23720818A EP4519706A1 EP 4519706 A1 EP4519706 A1 EP 4519706A1 EP 23720818 A EP23720818 A EP 23720818A EP 4519706 A1 EP4519706 A1 EP 4519706A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- test circuit
- pallet
- contact
- housing
- line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/68—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board
- G01R31/69—Testing of releasable connections, e.g. of terminals mounted on a printed circuit board of terminals at the end of a cable or a wire harness; of plugs; of sockets, e.g. wall sockets or power sockets in appliances
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R3/00—Apparatus or processes specially adapted for the manufacture or maintenance of measuring instruments, e.g. of probe tips
Definitions
- the present invention relates to a pallet for a wiring harness machine and a method for producing a wiring harness using such a pallet.
- the present invention is described below primarily in connection with electrical wiring harnesses for vehicles.
- a cable set can be produced by automatically cutting electrical cables to length, stripping their ends and providing them with contact parts, and inserting the contact parts into slots in connector housings until they snap into place. These steps can, for example, be carried out fully automatically by an automatic wiring harness.
- One pallet can be used for each line set.
- the connector housings can be positioned by housing adapters on the pallet in such a way that the contact parts can be inserted into the intended slots in a working area of the cable harness machine using coordinate control using a gripper.
- the housing adapters can be fitted with the connector housings before the pallet is moved into the work area.
- the correct engagement of the contact parts can be monitored by force-path detection when plugging in.
- the pallet with the cable set that has just been manufactured can be removed from the work area and replaced with another pre-equipped pallet. While the next cables in the work area are being connected to the connector housings, the cable set that has just been manufactured can be removed from the pallet and the housing adapters on the freed-up pallet can be fitted with connector housings again.
- An object of the invention is therefore to provide an improved range for an automatic line set and an improved method for producing a line set using means that are as structurally simple as possible.
- An improvement can, for example, relate to an electrical function test of the cable set during production.
- At least one circuit is provided on a pallet for an automatic cable harness, which is closed by a cable inserted as intended into two slots in plug housings.
- the circuit can be closed if the cable is inserted into the wrong slot.
- the circuit is part of an electrical circuit. The circuit detects and signals a status of the circuit to a monitoring device.
- a continuity test and/or resistance measurement can be carried out immediately when the connector housings of a cable set are fitted with electrical cables. Cables that are pre-assembled manually for technical reasons, for example, can also be checked. This means that there is no need for a downstream continuity test and/or resistance measurement in a separate testing station. If an incorrectly inserted cable is detected, this can be corrected immediately or the pallet with the affected cable set can be transferred to a designated station for rework. In particular, the individual wires of a multi-core cable can be plugged into the connector housing without polarity reversal. If a wire is inserted into the wrong slot, this can be detected immediately. The incorrectly inserted wire can be automatically pulled out again and inserted into another slot. If there are more than two possible slots, the correct slot can be searched for step by step.
- a pallet for an automatic cable harness is presented, with at least two housing adapters for receiving plug housings of a cable harness and a test circuit with at least one electrical test circuit being arranged on the pallet, the test circuit running over at least one contact per housing adapter, whereby the test circuit is closed when the at least two contacts are connected in an electrically conductive manner via at least one line of the cable set that is plugged into the plug housing as intended, the test circuit being designed to measure the test circuit and to signal a status of the test circuit.
- a method for producing a line set using a pallet according to the first aspect of the invention wherein the housing adapters are equipped with plug housings of the line set and a first contact part of at least one line of the line set is inserted into a slot in one of the plug housings and a second contact part of the line is inserted into a slot of another plug housing, the contact parts being electrically contacted by the contacts of the housing adapter when plugged in as intended and the test circuit being measured, a status of the test circuit being represented in a status signal.
- a line set can include several lines.
- the lines can run between at least two connector housings.
- the cable set can also have branches to other connector housings.
- the connector housings can have slots for contact parts of the cables.
- the contact parts can be electrically connected to stripped ends of the lines.
- the contact parts can snap into the slots if they are pushed deep enough into the slots.
- a contact part can be part of an electrically conductive plug connection.
- a line set can essentially be produced fully automatically by a line set machine.
- the lines can be provided on at least one supply roll as endless material.
- the cables can be unrolled from the supply roll and cut to a predefined length. The ends of the cables can then be stripped.
- the contact parts can be attached to the now stripped ends.
- the cables of a cable set can be manufactured one after the other and stored.
- certain cables cannot be plugged in fully automatically.
- the cables may be too short to be able to insert the contact parts one after the other from a gripper into the intended slots.
- Such lines can be pre-equipped manually or re-equipped manually.
- only one of the contact parts can be inserted by the gripper, while the second contact part is subsequently inserted manually.
- a contact part can be a stamped and bent part that is connected to a stripped end of a cable using a connection technique such as welding or crimping.
- the contact part can be female or male.
- the contact part can have at least one locking element which, when inserted into its slot, engages in a counterpart of the slot and thus prevents the contact part from being pulled back or pushed back at least until a target force is reached.
- the line set can be assembled on a pallet of the service set machine.
- the pallet can have several receptacles for the connector housings.
- a receptacle can be referred to as a housing adapter.
- the receptacle can at least partially depict a contour of the plug housing as a negative shape.
- the housing adapters can align the plug housings relative to the pallet so that all contact parts of the cables can be inserted into the slots of the plug housings from a common plugging direction.
- the housing adapter can have at least one electrically conductive contact.
- the contact can be arranged in the plugging direction opposite a slot in the plug housing.
- the contact can establish an electrically conductive connection to a contact part inserted into the slot.
- a test circuit can be connected to at least two contacts on the pallet.
- the contacts can be arranged in a common circuit.
- the circuit can be referred to as a test circuit.
- the test circuit can apply an electrical potential between the at least two contacts.
- the electrical potential can be called an electrical signal.
- the test circuit can have its own energy source on the pallet.
- the energy source can be, for example, a battery or a capacitor.
- the test circuit can be supplied with electrical energy from the automatic wiring harness.
- the test circuit can represent a status of the test circuit in a status signal.
- the status signal can be provided to the automatic wiring harness via a data line. Alternatively, the status signal can be provided wirelessly.
- the test circuit can monitor and provide the status both during automated assembly of the pallet in the cable harness machine and during manual pre-equipment or re-equipment.
- An electrical continuity and/or an electrical resistance of the test circuit can be represented in the status signal as a status.
- the test circuit can carry out a continuity test of the test circuit.
- the test circuit can detect whether the test circuit is electrically continuous or not.
- the test circuit can represent a result of the continuity test in the status signal.
- the test circuit can alternatively or additionally measure an electrical resistance of the line and/or an electrical capacitance of the line and represent it in the status signal.
- the cable set can be documented as intended if the status signal indicates that the test circuit is continuous and/or the electrical resistance of the test circuit is within a tolerance range.
- the line set can have an identification number. Documentation can be created for each line set. Manufacturing parameters and material parameters can be stored in the documentation. For example, the origin of individual parts of the cable set can be documented.
- a functional test can also be documented in the documentation.
- the electrical continuity test or resistance measurement can be referred to as a functional test. Forces and/or paths when inserting the contact parts into the slots can also be documented in the documentation.
- automated processes and manual processes can be documented using the approach presented here.
- the test circuit can run via contact pairs consisting of two contacts per housing adapter. The contacts of one of the contact pairs can be connected to one another in an electrically conductive manner. The test circuit can be connected to the contact pair of the other housing adapter. The test circuit can be closed if the contact pairs are electrically connected via two cables of the cable set inserted into the connector housing. With a test circuit over more than two contacts, several lines can be tested using this test circuit. If there are four contacts, one line can be referred to as the forward line and the other line as the return line.
- a diode can be connected between the electrically conductively connected pair of contacts.
- the test circuit can then be closed when the contact parts of two cables are inserted into the slots with the intended polarity.
- the slots on one of the connector housings can be swapped if the status signal indicates that the test circuit is interrupted.
- a diode can only allow current to flow in one direction. This makes it possible to distinguish between the outward line and the return line between the contacts, i.e. which line is electrically connected to which contact.
- the two lines can be distinguished by the clear current direction. Errors can be detected and corrected automatically.
- the two lines can in particular be twisted. Twisted lines can be, for example, a twisted pair data line.
- the twisted cables can run within a common sheath.
- the twisted cables can also be shielded.
- the twisted cables can be distinguished by color coding. Using the approach presented here, twisted cables can also be plugged into the connector housings fully automatically.
- the test circuit can be arranged on one of the housing adapters and connected directly to the at least one contact of the housing adapter.
- An adjacent arrangement can reduce the amount of wiring required. Especially with contact pairs in the housing adapters, two lines per test circuit can be checked with little wiring effort.
- the test circuit can be connected to the at least one contact of at least one remote housing adapter via at least one line bridge.
- a cable bridge can be used to connect a single cable between two connector housings per test circuit be checked.
- the pallet can have its own line bridge for each line of the line set. This means that each line can be tested with its own test circuit.
- the cable bridge can run over the back of the pallet.
- the cable bridge can be easily laid on the back.
- the cabling of the pallet can be easily maintained at the rear because the housing adapters are not in the way.
- the contacts of the housing adapters can be spring-loaded.
- the spring-loaded contacts can be referred to as spring contacts.
- the contacts can protrude into the unoccupied slots of the connector housing. When the contact part is inserted, the contacts can be pushed back against an increasing spring force.
- the spring force can be used to achieve a secure electrical connection. Furthermore, the electrical connection can be achieved before the contact part snaps into the slot. This means that an incorrectly inserted contact part can easily be pulled back and inserted into another slot.
- the test circuit can have a radio module for signaling the status.
- the status can also be signaled visually, acoustically or via a direct electrical connection.
- a radio module can signal the status even without line of sight or electrical contacts to the pallet.
- FIG. 1 shows a representation of a pallet according to an exemplary embodiment
- Fig. 2 is a representation of a test circuit with a test circuit according to an exemplary embodiment.
- the figures are schematic representations and only serve to explain the invention. Elements that are the same or have the same effect are consistently provided with the same reference numerals.
- Fig. 1 shows a representation of a pallet 100 according to an exemplary embodiment.
- the pallet can be used in a wiring harness machine for automated production of a wiring harness 102.
- the pallet 100 can also be pre-equipped and/or re-equipped manually.
- Two housing adapters 104 and a test circuit 106 are arranged on the pallet 100.
- the test circuit 106 is arranged here directly next to one of the housing adapters 104 on the pallet 100.
- the other housing adapter 104 is arranged on the pallet 100 at a distance from the test circuit 106.
- the line set 102 consists of at least two connector housings 108 and lines 110 running between the connector housings 108.
- the lines 110 have contact parts 112 at both ends.
- the contact parts 112 are inserted into slots in the connector housing 108 and locked in the slots.
- the housing adapters 104 are receptacles for the plug housings 108 of the cable set 102.
- the housing adapters 104 are pre-equipped with empty plug housings 108 and then the pallet 100 in the cable set machine is automatically equipped with the cables 110. If necessary, lines 110 that cannot be populated automatically can be pre-equipped or re-equipped.
- the cable harness machine equips the connector housings 108 with pre-assembled cables 110.
- the cables 110 are cut to a predetermined length, the ends of the cables 110 are stripped and one contact part 112 is connected to the cable 110 at each end.
- the wiring harness machine inserts the contact parts 112 of a line 110 using a gripper into one slot per connector housing 108 until they snap into the connector housing 108. A path and/or a force during insertion can be monitored.
- the inserted lines 110 then run between the plug housings 108.
- contacts 114 are arranged in the housing adapters 104. A contact 114 contacts a contact part 112 of a line 110 when the contact part 112 is inserted automatically or manually into a slot.
- At least two of the contacts 114 are arranged in an electrical test circuit 116 of the test circuit 106.
- the test circuit 116 is closed when the contact parts 112 of at least one line 110 are inserted into the intended slots. If the contact parts 112 are inserted into the wrong slots, the test circuit 116 remains interrupted.
- the test circuit applies an electrical potential to the contacts 114 and registers a current flow when the test circuit 116 closes.
- the test circuit 106 signals an electrically conductive continuity through the test circuit 116 via a status signal 118.
- the test circuit 106 can determine an electrical resistance of the test circuit 116 using the current flow. The resistance can also be shown in the status signal 118.
- resistance measurement can be used to test continuity. The resistance of the test circuit is measured and continuity is detected if the resistance is less than a threshold value. If the resistance is less than a minimum value, a measurement error can be detected.
- the contacts 114 are spring-loaded. As a result, the contacts 114 protrude into the slots of the connector housing 108 in an unloaded state. A contact part 112 thereby touches the contact 114 before the contact part 112 snaps into the slot. The test circuit 116 can be closed before the contact part 112 snaps into the slot. If the test circuit 116 is not closed, the contact part 112 can be retracted and inserted into another slot.
- the spring-loaded contacts 114 can be used to compensate for manufacturing tolerances of the plug housing 108 and/or the contact parts 112. The contacts 114 can contact the contact parts 112 even if they are slightly set back in the connector housing 108.
- the housing adapters 104 have at least two contacts 114.
- the contacts 114 are connected as a contact pair 120.
- the contacts 114 of the contact pair 120 are connected to one another in an electrically conductive manner.
- both contacts 114 are connected to the test circuit 106.
- the test circuit 116 is closed when the contact parts 112 of two lines 110 are inserted into their intended slots. The two lines 110 can thus be measured via the same test circuit 116.
- a diode 122 is connected between the contacts 114 of the electrically conductively connected contact pair 120.
- the diode 122 allows current to flow in only one direction within a voltage range.
- the test circuit 116 is only closed by the diode 122 when the contact parts 112 of a forward line 124 are inserted into their intended slots and the contact parts 112 of a return line 126 are also inserted into their intended slots. In other words, for a pair of lines 128, the test circuit 116 is only closed when the pair of lines 128 is inserted into the connector housing 108 with the correct polarity.
- the line pair 128 is a data line 130, referred to as a twisted pair.
- the individual lines 110 or cores of the data line 130 are color-coded, but run within a common jacket.
- the lines 110 or cores can only be distinguished with additional effort, for example by optical methods, which is why the data lines 130 have so far only been pre-equipped or re-equipped manually.
- data lines 130 can be populated fully automatically in the line harness machine.
- the contact parts 112 of the data line 130 are inserted into the slots on one of the plug housings 108 and thus contact the contacts 114 arranged there.
- the contact parts 112 are only inserted into the slots until they touch the contacts 114. If the test circuit 116 is closed, the contact parts 112 are inserted further until they snap into the slots. If the test circuit 116 is not closed, the contact parts 112 are pulled out of the slots again and swapped. The swapped contact parts 112 are inserted into the slots again and the test circuit 116 is checked. If the test circuit 116 is closed, the contact parts 112 are inserted further until they snap into the slots. Alternatively, the manual, upstream or downstream assembly of the line pair 128 can be monitored and documented. The closing of the test circuit 116 can be signaled to an operator, for example optically and/or acoustically, using the status signal 118.
- a contact 114 of the spaced housing adapter 104 is connected to the test circuit 106 via a line bridge 132.
- the line bridge 132 is therefore part of the test circuit 116.
- the test circuit 116 is closed when the contact parts 112 of a line 110 touch both contacts 114. Individual lines can be checked using the line bridge 132.
- the line bridge 132 runs over a back of the pallet 100.
- FIG. 2 shows a representation of a test circuit 106 with a test circuit 116 according to an exemplary embodiment.
- the test circuit 106 essentially corresponds to the test circuit in FIG. 1.
- Two outputs 200 of the test circuit 106 are connected to contacts 114.
- the contacts 114 are arranged in the same housing adapter.
- a further two contacts 114 are arranged in a further housing adapter.
- a diode 122 is connected between the other two contacts 114. If all four contacts 114 are contacted by two properly equipped lines 110, the test circuit 116 is closed. If two contact parts 112 are inserted interchangeably, the test circuit 116 is not closed.
- the test circuit 116 When the test circuit 116 is closed, a current flows through the test circuit 116 and a status of the test circuit 116 is signaled by a status signal 118.
- the status signal 118 is transmitted wirelessly via a radio module 202 to a monitoring device 204.
- a production process-accompanying test of twisted or manually assembled cables on the cable harness machine with pallets is presented.
- the assembly process is secured by force-distance measurement.
- twisted cables for example, cannot be assembled automatically. Twisted cables or cables that are too short for the machine are therefore pre- or re-equipped manually. This requires an in-process test in the form of a continuity measurement or determination of the electrical resistance of the connection and, in the case of twisted cables, an additional test of the electrical polarity.
- the housing receptacles are expanded by electrical spring contacts, similar to those used in test adapters, for example in end-of-line testing. These are connected electrically so that both the polarity and the resistance of the electrical connection can be determined.
- the measuring unit can be battery operated. Additionally, the electronics can be provided with a wireless connection to make the output available for process control.
- the approach presented here allows an important additional parameter to be obtained in order to qualify the partially/automated manufacturing process. Consistent traceability of the process parameters in the assembly process can be achieved. The approach presented here enables the process parameters to be recorded during the process, so that an end-of-line test can be omitted.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022110739.6A DE102022110739B3 (de) | 2022-05-02 | 2022-05-02 | Palette für einen leitungssatzautomat und verfahren zum herstellen eines leitungssatzes |
| PCT/EP2023/060027 WO2023213531A1 (de) | 2022-05-02 | 2023-04-18 | Palette für einen leitungssatzautomat und verfahren zum herstellen eines leitungssatzes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4519706A1 true EP4519706A1 (de) | 2025-03-12 |
Family
ID=86286029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23720818.6A Withdrawn EP4519706A1 (de) | 2022-05-02 | 2023-04-18 | Palette für einen leitungssatzautomat und verfahren zum herstellen eines leitungssatzes |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4519706A1 (de) |
| CN (1) | CN119110905A (de) |
| DE (1) | DE102022110739B3 (de) |
| MX (1) | MX2024013576A (de) |
| WO (1) | WO2023213531A1 (de) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4030029A (en) * | 1975-08-14 | 1977-06-14 | Cox C Eugene | Harness assembly test system |
| DE8713233U1 (de) | 1987-10-01 | 1988-02-11 | Lutzke, Werner, 8900 Augsburg | Vorrichtung zum Zusammenstellen und Prüfen von Kabelbäumen aus Einzelkabeln |
| US4951385A (en) | 1989-05-16 | 1990-08-28 | Desanto Joseph J | Electrical harness assembly apparatus |
| JP3988406B2 (ja) * | 2001-05-30 | 2007-10-10 | 住友電装株式会社 | 電気配線システムの検査装置及び方法 |
| DE60231262D1 (de) * | 2001-05-30 | 2009-04-02 | Sumitomo Wiring Systems | Verarbeitungssystem für ein Kabelnetz, Verfahren zum Testen einer elektrischen Verbindung eines Kabelnetzes, computerlesbares Speichermedium mit gespeichertem Computerprogramm und Hilfssystem für Drahtverbindung |
| DE102007024476A1 (de) | 2007-05-25 | 2008-11-27 | Dirk Selbach | Kabelbaumherstellungssystem |
| US10094866B2 (en) * | 2014-04-01 | 2018-10-09 | The United States Of America, As Represented By The Secretary Of The Navy | Portable multi-function cable tester |
| DE102016109741B4 (de) * | 2016-05-26 | 2017-12-21 | TSK Prüfsysteme GmbH | Testpunktkarten-Einrichtung für einen Prüftisch |
| KR102036705B1 (ko) * | 2019-04-30 | 2019-10-25 | 송제훈 | 자동차 도어용 케이블의 통전시험 장치 |
| EP3872512B1 (de) * | 2020-02-27 | 2026-02-11 | Aptiv Technologies AG | Verkabelungsanordnungsplatte und verfahren zur verifizierung von verbindungen bei der montage eines kabelbaums |
-
2022
- 2022-05-02 DE DE102022110739.6A patent/DE102022110739B3/de active Active
-
2023
- 2023-04-18 WO PCT/EP2023/060027 patent/WO2023213531A1/de not_active Ceased
- 2023-04-18 EP EP23720818.6A patent/EP4519706A1/de not_active Withdrawn
- 2023-04-18 CN CN202380036917.4A patent/CN119110905A/zh active Pending
-
2024
- 2024-11-01 MX MX2024013576A patent/MX2024013576A/es unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE102022110739B3 (de) | 2023-09-07 |
| CN119110905A (zh) | 2024-12-10 |
| MX2024013576A (es) | 2024-12-06 |
| WO2023213531A1 (de) | 2023-11-09 |
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