DE102007050176A1 - Mobile device i.e. hand pliers, for crimping electrical wire to crimp-contact element of electrical connector, has measuring device measuring crimping force exerted on crimp-contact element during working stroke - Google Patents

Abstract

The device (2) has a crimping die (4) and a crimping support (6), where the die is movable away in a working stroke in a direction of the support for crimping crimp-contact elements to an electrical wire. The die is movable away in a return stroke in a direction of the support. A force measuring device (8) measures crimping force exerted on the crimp-contact elements during the working stroke. A transmitter (10) is provided to transmit a signal e.g. Bluetoothsignal, which corresponds to the measured crimping force. Independent claims are also included for the following: (1) a system for monitoring movably manufactured crimping connection (2) a method for manufacturing the quality of movably manufactured crimping connection.

Description

mobile Crimp devices such. B. Hand tools for making crimp connections at the installation are known in the art. Due to increasing complexity crimped wire harnesses, toughened product adhesion and heightened There is a need for guarantee requirements, a good quality of crimp connections sure.

It is therefore the object of the invention to provide a mobile device for Manufacture of crimps to provide quality with the mobile manufactured Crimpverbindungen can be better monitored.

These The object is achieved by a mobile device for producing crimp connections Claim 1, a system for monitoring mobile manufactured crimp connections according to claim 17 and a method to monitor the quality Mobile produced crimp according to claim 20 completely solved.

A mobile according to the invention Device for crimping at least one electric wire at least one crimp contact element of an electrical connector has a crimping die and a Crimpauflage, wherein the crimping die in a working stroke towards the crimping pad for crimping of the crimp contact element thereon against the wire and in a return stroke is movable away in the direction of the Crimpauflage. The device further comprises a force measuring device for measuring during a each working stroke applied to the crimp contact element crimping force and a transmitter to transmit at least one signal, the corresponds to the measured crimping force.

One inventive system to monitor Mobile produced crimps has at least one device according to the invention for crimping at least one electric wire to at least a crimp contact element of an electrical connector and a Receiving means for receiving the emitted from the mobile device Signals on.

One inventive method to monitor the quality a mobile crimp connection produced by exercising a Crimping force on a crimp contact element with at least one in it contained wire, includes the steps: measuring while each crimping force exerted on the crimp contact element and emitting at least one signal corresponding to the measured crimping force equivalent.

By a mobile according to the invention Device for crimping at least one electric wire at least one crimp contact element of an electrical connector becomes the crimp force used in making the crimped connection detected and a signal is output that the detected crimping force equivalent. This allows the quality of mobile crimp connections monitored and documented.

The Invention provides in addition a mobile device that provides a path measuring system for continuous Measuring the during each working stroke from the crimping die has traveled wherein a transmitter is provided to output at least one signal, which corresponds to the respective measured path. By measuring the during each Working stroke of the crimping die covered path can monitor the quality of the crimp connection become.

In an embodiment is the position measuring system additionally provided to the force measuring device, wherein the displacement measuring system and the force measuring device independent Invention aspects of a suitably equipped mobile crimping device represent.

In an embodiment the mobile device has a transmitter for wireless transmission at least one of the signals is formed. Through a wireless signal transmission the mobile device is particularly easy to handle, since no Cable is necessary, which in the use of the mobile device to disturb could.

In an embodiment the transmitter is designed to transmit at least one "blue tooth" signal wirelessly is. "Blue-tooth" is a special suitable, known per se method for wireless data transmission.

In an embodiment additionally includes the mobile device a memory to the values of the measured crimping force and / or to store the measured path. In such a memory, the measured values are saved locally, z. If not connected consists of a receiving device. The signals can be later, if again a connection to the receiving device exists, sent out to transmit the values to the receiving device. The range of application of the mobile device is thereby extended, because the device can also be used when temporarily no Connection to the receiving device exists without the measured Values are lost.

In one embodiment, the mobile device additionally comprises a display device, to display the values for the measured crimp force and / or the measured distance. The quality of the crimp connection can thereby be controlled directly on the mobile device.

In an embodiment the force measuring device has a piezoelectric force sensor on. A piezoelectric force sensor is a proven means for force measurement.

In an embodiment the force sensor device has a strain gauge. A strain gauge is a proven Means for force measurement.

In an embodiment the mobile device has a die, wherein the Crimpauflage and / or the crimping stamp a receiving device for receiving the at least a die and wherein the at least one die for Receiving at least one crimp contact element is formed. By such a die, which can be designed interchangeable, can various types of crimp contact elements reliably with the same mobile device.

In an embodiment the die is designed to receive at least one connector housing, wherein the connector housing has at least one crimp contact element. In another embodiment has the connector housing a plurality of crimp contact elements. This can be done in one Operation a plurality of crimp connections are made.

In an embodiment the force measuring device is formed in at least one of the dies. As a result, the crimping force can be measured particularly easily and reliably and the force measuring device is well protected against external influences.

In an embodiment the mobile device is designed as a hand tongs. A hand tongs is particularly easy and convenient to use to mobile crimp connections manufacture.

In an embodiment The crimping punch is movable by muscle power. Such a device when the crimping punch is moved by muscular strength has a low Weight, low maintenance and versatile, since they have no external connections needed for energy supply.

In an embodiment the mobile device has an electric drive for moving the Crimp stamp on. A device with an electric drive is particularly convenient to use because no muscle power to manufacture the crimp connection must be spent. In addition, it is ensured that always a big enough one Crimping force available stands.

In an embodiment The mobile device has a pneumatic or hydraulic Drive for moving the Crimpstempels on. Such a device is particularly convenient to use because no muscle power to manufacture the crimp connection must be spent. In addition, it is ensured that always a big enough one Crimping force available stands. A pneumatic or hydraulic drive only has one low weight.

Of the Electric, pneumatic or hydraulic drive can with a Force limiter be provided to the on the crimp contact element practiced Limit power to a predetermined value. This prevents that the cimp contact element and / or the electrical wire by one too big Crimping force damaged become.

In an embodiment the mobile device has a ratchet that slips, when the force applied to the crimp contact member has a predetermined force Value exceeds by the force exerted on the crimp contact element to the given Limit value. This will prevent the cimp contact element and / or the electrical wire may be damaged by excessive crimping force.

In an embodiment the mobile device has a ratchet that falls below a predetermined distance between the crimping die and the Crimpauflage slips to the minimum distance between the crimping die and to limit the crimping. This will ensure that the cimp contact element and / or the electrical wire is not be damaged by too tight compression.

In an embodiment instructs the system to monitor mobil manufactured Crimpverbindungen an evaluation device for Evaluate the received signals. By evaluating the received Signals can be the quality the mobile crimp connections are reliably monitored.

In an embodiment instructs the system to monitor mobile manufactured crimp connections a database for storing received signals. By storing the received Signals can be the quality the mobile crimp connections are reliably documented.

The invention is described below with reference to egg in the 1 to 3 illustrated embodiment illustrated.

1 shows a side view through a mobile device according to the invention in the form of a hand tool.

2 shows a side perspective view of the device 1 ,

3 schematically shows a system with a mobile device according to the invention and a receiving and evaluating device.

1 shows a side view of a mobile device according to the invention 2 , which is designed in the form of a hand tool. The hand tool has an upper lever arm 30 and a lower lever arm 32 on, with the upper lever arm 30 is formed essentially in the shape of a horizontal Y and in its rear, in the 1 on the right, a handle area 14 for operating the upper lever arm 30 having. The grip area 14 of the upper lever arm 30 can be provided with a non-slip coating to better grip the upper lever arm 30 to enable. In his front, in the figure on the left shown area 31 shares the upper lever arm 30 in an upper leg 34 and a lower leg 36 , The lower thigh 36 runs from back to front obliquely down and is at its lower end with a joint 20 Mistake. About the joint 20 is the upper lever arm 30 rotatable with the lower lever arm 32 connected. In his rear area, behind the joint 20 is the lower lever arm 32 with a grip area 16 provided that can be provided with a non-slip coating. In his front area 33 that is in front of the joint 20 is the lower lever arm 32 with a crimping pad 6 provided for receiving at least one crimp contact element of an electrical connector.

On the upper leg 34 of the upper lever arm 30 is a crimp stamp 4 educated. When pressing the hand tool, ie when squeezing the two lever arms 30 . 32 becomes the crimp stamp 4 in a working stroke towards the crimping pad 6 moved to crimp a crimping contact thereon, not shown, to a, not shown, wire. The minimum distance between the crimping punch 4 and the crimping pad 6 can through one at the joint 20 provided adjusting device 48 that is an adjusting wheel 50 , on whose circumference at least partially a toothing is formed, and an adjusting pin 52 has to be adjusted.

The hand tool is released by the two lever arms 30 . 32 moved away from each other, moves the crimping punch 4 in a return stroke from the crimping pad 6 path. In an embodiment, not shown, the compression of the lever arms 30 . 32 be performed by an electric, pneumatic or hydraulic drive or assisted to reduce the force to be applied by the operator.

At the crimp stamp 4 is a force measuring device 8th attached to the crimping force during the working stroke to that in the crimping fixture 6 arranged crimp contact element is exercised to measure. The force measuring device 8th is designed for example as a piezoelectric force sensor or strain gauges. In the in 1 The embodiment shown is the force measuring device 8th for better illustration on the outside of the crimping die 4 appropriate. The force measuring device 8th but also within the crimping die 4 or in the crimp receptacle 6 be located where it is better protected from damage.

The force measuring device 8th is electric with a transmitter 10 connected, the above the crimping die 4 laterally on the upper leg 34 of the upper lever arm 30 is appropriate. The transmitter 10 is configured to emit a wireless signal similar to that of the force measuring device 8th measured value of the crimping force corresponds. Thus, the value of crimping applied to the crimp contact element and by the force measuring device 8th measured force wirelessly to one, in 1 not shown, receiving and evaluation device are transmitted. The transmitter 10 has controls 38 to the transmitter 10 to control. That's how the transmitter works 10 via the controls 38 switched on and off; the frequency of the transmitter 10 can be adjusted, u. Ä. In the transmitter 10 is one in which 1 not shown, power source provided to the transmitter 10 and the force measuring device 8th to provide energy. The power source may be an electric battery or a rechargeable battery. In the transmitter 10 may be provided an induction coil in which an external magnetic field, an induction current he is testified to charge the accumulator. Alternatively, the accumulator may have at least one on the outside of the transmitter 10 mounted solar cell or a temporary cable connection to be charged. In addition, the transmitter 10 with a display device 12 provided information such. B. from the force measuring device 8th measured values, the transmission frequency, the existence of a wireless connection, the state of charge of the power source u. ä. to display. The display device 12 can z. B. be an LED or LCD display device. In the transmitter 10 There is also a transmitting antenna for transmitting the wireless signals. One inside the transmitter 10 disposed Transmitting antenna is well protected against damage. Alternatively, the transmit antenna may be outside the transmitter 10 be appropriate to the range of the transmitter 10 to increase.

In addition to or instead of the force measuring device 8th Can be a path measuring system for measuring the crimping die 4 during each working stroke in relation to the crimping 6 be provided path. By measuring the of the crimping die 4 during each stroke of travel, the quality of the crimped connection can be better monitored.

In the joint 20 between the upper lever arm 30 and the lower lever arm 32 is one in the 1 non-visible ratchet is provided which slips when a predetermined value of the force exerted on the crimp contact element force is exceeded. Thereby, the force applied to the crimp contact member is limited to a predetermined value, so that the cimp contact member and / or the electric wire is not damaged by an excessive crimping force.

Alternatively or additionally, the ratchet falls below a predetermined distance between the crimping die 4 and the crimping pad 6 slipped to the minimum distance between the crimping die 4 and the crimping pad 6 to limit. This ensures that the crimp contact element and / or the electrical wire are not damaged by too tight compression.

Between the upper thigh 34 and the lower leg 36 of the upper lever arm 30 is a ratchet release 18 provided to unlock the ratchet.

2 shows a perspective view of the device 1 , The same features are denoted by the same reference numerals and will not be described again.

In the perspective view of 2 It can be seen that the front area of the upper lever arm 30 with the upper thigh 34 and the lower leg 36 two at a distance parallel to each other vertically arranged sheets 46 includes. Between these sheets 46 are the crimp stamp 4 and the lower lever arm 32 with the crimping pad 6 arranged.

3 schematically shows a system comprising the mobile device according to the invention 2 from the 1 and 2 and a receiving and evaluating device 40 having. On the transmitter 10 the mobile device 2 is schematically a transmitting antenna 42 shown. The transmitting antenna 42 However, as related to 1 discussed, even within the station 10 be arranged. The reception and evaluation device 40 includes a receiving antenna 24 that come with a receiving device 22 for receiving from the transmitter 10 emitted wireless signals is connected. The receiving device 22 is electrically with an evaluation device 26 , connected to evaluate the received signals. The evaluation device 26 is with a storage device 28 connected to store the signals and possibly also the results of the evaluation of the signals. Furthermore, the evaluation device 26 with an ad 44 to display the received signals and the results of the evaluation. The ad 44 can be an LED or LCD display or a screen. Furthermore, the receiving and evaluating device 40 with one in the 3 not shown operating device, such. B. a keyboard to the receiving and evaluating device 40 to control. The reception and evaluation device 40 For example, it may be a commercial personal computer (PC) with a Blue Tooth receiver.

2

mobile A crimping apparatus

4

crimping dies

6

crimping anvil

8th

Force measuring device

10

transmitter

12

display device

14 16

grip area

18

Ratschenentriegelung

20

joint

22

receiver

24

receiving antenna

26

evaluation

28

memory device

30

upper lever arm

32

lower lever arm

34

upper leg

36

lower leg

38

operating element

40

reception and evaluation device

42

transmitting antenna

44

display

46

sheet

48

adjustment

50

dial

52

adjusting pin

Claims (26)

Mobile device ( 2 ) for crimping at least one electrical wire to at least one crimp contact element of an electrical connector, with a crimping die ( 4 ) and a crimping pad ( 6 ), wherein the crimping punch ( 4 ) in a working stroke in the direction of the crimping pad ( 6 ) for crimping the crimp contact element thereon against the wire and in a return stroke in the direction of the crimp pad ( 6 ) is movable away, with a force measuring device ( 8th ) for measuring the crimping force exerted on the crimp contact element during each working stroke, and with a transmitter ( 10 ) to emit at least one signal corresponding to the measured crimping force. Mobile device ( 2 ), in particular according to claim 1, comprising a displacement measuring system for continuously measuring the force of the crimping die ( 4 ) during each stroke of travel, the transmitter ( 10 ) is arranged to emit at least one signal corresponding to the respective measured path. Mobile device ( 2 ) according to claim 1 or 2, wherein the device comprises a transmitter ( 10 ), which is designed for the wireless emission of at least one of the signals. Mobile device ( 2 ) according to claim 3, wherein the transmitter ( 10 ) is designed for the wireless emission of at least one blue tooth signal. Mobile device ( 2 ) according to one of the preceding claims, wherein the mobile device ( 2 ) additionally a memory device ( 28 ) to store the measured crimping force and / or the measured path. Mobile device ( 2 ) according to one of the preceding claims, wherein the mobile device ( 2 ) additionally a display device ( 12 ) to indicate the measured crimping force and / or the measured path. Mobile device ( 2 ) according to one of the preceding claims, wherein the force sensor device ( 4 ) has a piezoelectric force sensor. Mobile device ( 2 ) according to one of claims 1 to 6, wherein the force sensor device ( 4 ) has a strain gauge. Mobile device ( 2 ) according to one of the preceding claims with at least one die, wherein the crimping pad ( 6 ) and / or the crimping die ( 4 ) has a receiving device for receiving the at least one die and wherein the at least one die is formed for receiving at least one crimp contact element. Mobile device ( 2 ) according to claim 9, wherein the die for receiving at least one connector housing is formed, wherein the connector housing comprises a plurality of crimp contact elements. Mobile device ( 2 ) according to claim 9 or 10, wherein the force sensor ( 8th ) is formed in at least one of the dies. Mobile device ( 2 ) according to one of the preceding claims, wherein the mobile device ( 2 ) is designed as a hand tool. Mobile device ( 2 ) according to one of the preceding claims, wherein the crimping die ( 4 ) is movable by muscle power. Mobile device ( 2 ) according to one of the preceding claims, wherein the mobile device ( 2 ) an electric drive for moving the crimping die ( 4 ) having. Mobile device ( 2 ) according to one of the preceding claims, wherein the mobile device ( 2 ) a pneumatic drive for moving the crimping die ( 4 ) having. Mobile device ( 2 ) according to one of the preceding claims, wherein the mobile device ( 2 ) has a ratchet that slips when a predetermined value of force applied to the crimp contact member is exceeded to limit the force applied to the crimp contact member to the predetermined value. Mobile device ( 2 ) according to one of the preceding claims, which additionally has a ratchet, which falls below a predetermined minimum distance between the crimping die ( 4 ) and the crimping pad ( 6 ) slipped to the minimum distance between the crimping die ( 4 ) and the crimping pad ( 6 ) to limit. System for monitoring mobile crimp connections, comprising a mobile device ( 2 ) according to one of the preceding claims, and a receiving device ( 22 ) for receiving the signals emitted by the mobile device. System according to claim 17, additionally comprising an evaluation device ( 26 ) for evaluating the received signals. A system according to claim 17 or 18, further comprising a memory device ( 28 ) for storing the received signals. A method of monitoring the quality of a mobile crimped connection by applying a crimping force to a crimping contact with a wire contained therein, with the following steps measuring the crimping force exerted on the crimping contact element during each working stroke, and emitting at least one signal corresponding to the measured crimping force. The method of claim 20, wherein said at least a transmitted signal is transmitted wirelessly. The method of claim 20 or 21, further comprising the steps of: moving a crimping die ( 4 ) in the direction of the crimping pad ( 6 ) for applying the crimping force to the crimp contact element; Measuring the of the crimping punch ( 4 ) traveled way; Emitting at least one signal corresponding to the traveled distance. The method of claim 19, further comprising: receiving the at least one transmitted signal in a receiving device. 22 ). The method of claim 23, further comprising: evaluating the at least one transmitted signal in an evaluation device ( 26 ). Method according to one of claims 23 or 24, additionally comprising: storing the at least one transmitted signal in a memory device ( 28 ).