Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
  • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
  • H01R43/042—Hand tools for crimping
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
  • B25F3/00—Associations of tools for different working operations with one portable power-drive means; Adapters therefor
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
  • Y10T29/5193—Electrical connector or terminal
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/53—Means to assemble or disassemble
  • Y10T29/5313—Means to assemble electrical device
  • Y10T29/532—Conductor
  • Y10T29/53209—Terminal or connector
  • Y10T29/53213—Assembled to wire-type conductor
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/53—Means to assemble or disassemble
  • Y10T29/5313—Means to assemble electrical device
  • Y10T29/532—Conductor
  • Y10T29/53209—Terminal or connector
  • Y10T29/53213—Assembled to wire-type conductor
  • Y10T29/53222—Means comprising hand-manipulatable implement
  • Y10T29/53226—Fastening by deformation
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/53—Means to assemble or disassemble
  • Y10T29/5313—Means to assemble electrical device
  • Y10T29/532—Conductor
  • Y10T29/53209—Terminal or connector
  • Y10T29/53213—Assembled to wire-type conductor
  • Y10T29/53235—Means to fasten by deformation
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/53—Means to assemble or disassemble
  • Y10T29/5313—Means to assemble electrical device
  • Y10T29/5327—Means to fasten by deforming
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/53—Means to assemble or disassemble
  • Y10T29/53313—Means to interrelatedly feed plural work parts from plural sources without manual intervention
  • Y10T29/53383—Means to interrelatedly feed plural work parts from plural sources without manual intervention and means to fasten work parts together
  • Y10T29/53387—Means to interrelatedly feed plural work parts from plural sources without manual intervention and means to fasten work parts together by deforming

Definitions

• the present invention relates to a crimping tool, in particular a hand-held crimping tool for crimping cable lugs or cable connectors according to the preamble of claim 1.
• Hand-held crimping tools in the form of crimping pliers are known from the prior art in which the two legs of a handle must be compressed by hand for crimping cable lugs or cable connectors. Multiple use of such a crimping tool is very tiring for the hand of a user, so that in continuous use after several crimping performed the user is no longer able to operate the crimping tool.
• the invention is therefore based on the object to provide a crimping tool with which a fatigue-free pressing of cable lugs or cable connectors is made possible.
• a hand-operated crimping tool here is to be understood as meaning a crimping tool that can be held and guided by the hands of a user, as is the case, for example, with a hand drill.
• Crimping tool a rotatably mounted about its longitudinal axis mounted drive shaft, which is driven by an electric motor.
• This electric motor provides the force to be applied for the crimping process, so that the hand of the User is considerably relieved and only the crimping tool must lead itself.
• the drive shaft of the crimping tool can either be firmly connected to the electric motor or be detachably clamped in a drill chuck of a drilling machine.
• the user has an easy-to-handle power tool available, which is in a simple way and without much effort on the part of the user to use or to use.
• the user for different operations such as crimping cable lugs and cutting cables, only a power tool such as a hand drill or a cordless drill for the use of the appropriate essays (crimping attachment, cutting attachment) needed.
• the crimping tool has a torque support. This is particularly preferably placed on the adapter flange of a drill and fixed by means of a clamping ring. Through this solid connection of drive part and drill handling is significantly simplified.
• the drive unit has a translationally movable transport pawl, an eccentric wheel and a crimping die.
• the crimping die is connected to the eccentric wheel by a connecting rod.
• the conversion of the rotational movement of the drive shaft in a translational movement of the Transportlinke is accomplished either via a crank drive or a cam drive.
• the cam drive has the advantage that you have the necessary movement for the crimping largely free to the extent can distribute on a cam.
• the working stroke can be adapted to individual requirements.
• the drive unit preferably also has a pawl, which is pressed against the eccentric wheel by means of a pressure element.
• This pawl mechanism additionally causes fast rotational movements of the eccentric wheel are prevented and the eccentric can be performed in this way in the bottom dead center of the drive mechanism to remove the cable lug at then fully open crimping.
• a manual actuation unit for manual rotation of the eccentric wheel is arranged on the eccentric wheel. This allows a fast opening and closing of the crimping insert.
• the head unit can be unlocked and opened under load.
• the head unit is formed with a first and a second receiving bracket, wherein on the first receiving bracket an eccentric pin is rotatably mounted, which is mounted eccentrically on a tool housing part about a second pivot point, such that the first receiving bracket parallel to the longitudinal axis of the first receiving bracket of the drive unit is movable away and thereby a lock with the second receiving bracket is released. After unlocking the mounting bracket can be folded away laterally and the incorrectly inserted cable lug can be removed.
• the crimping insert is removably held by the receiving hoops. This allows a replacement of the crimping insert and thus the creation of crimp connections in different shapes and different cross-sections.
• FIG. 1 shows a schematic perspective front view of an embodiment of the crimping tool
• FIG. 2 shows a schematic perspective rear view of the embodiment of the crimping tool
• FIG. 3 shows a schematic perspective view of an embodiment of the crimping tool with partially removed housing
• FIG. 5 shows a schematic detail view of the drive unit with a cam drive
• FIG. 6 shows schematic plan views of the head unit for illustrating the unlocking process
• Figures 7 and 8 are schematic perspective views with open or closed crimping insert
• Figures 9 and 10 are schematic plan views of an embodiment of the crimping tool for illustrating the connection with a drill
• Figure 11 is a schematic perspective view of an embodiment of the crimping tool with rotatable head unit.
• top, bottom, left, right, front, back, etc. refer exclusively to the exemplary representation and position of the crimping tool selected in the respective figures. These terms are not intended to be limiting, that is, in different working positions or by the mirror-symmetrical design or the like, these references may change.
• FIGS. 1 and 2 show a front and rear view, respectively, of a first embodiment of a crimping tool, which has a head unit A and a drive unit B.
• a handle 14 is preferably arranged, which facilitates the handling of the crimping tool for a user.
• the head part A consists essentially of a crimping insert 19 consisting of a first crimping part 19a and a second crimping part 19b, a crimping die 16 operatively connected to the second crimping part 19b, and a first receiving cleat 17 and a second upright - Take handle 18, which are fixed to a tool housing part 29.
• the crimping insert 19 is removably held by the receiving hoops 17, 18, in particular in the receiving bracket 17, 18 inserted to allow replacement of the crimping insert 19 and thus the creation of crimp connections in different shapes and different cross-sections.
• the two crimp parts 19a and 19b are semicircular, wherein in the diameter of the semicircle forming Crimpteilkante a recess is provided which serves to receive the cable lug or cable connector to be pressed.
• the two crimp parts 19a and 19b are assembled into a circle with a central opening for the cable lug or cable connector receptacle.
• the first crimp part 19 a lies with its circumferential edge in the second receiving bracket 18 a.
• the second crimp part 19b lies with its circular edge in a semicircular receptacle of an upper end face of the crimping die 16.
• the crimping insert For crimping the cable lugs / cable connectors, the crimping insert is closed or opened via the mechanism of the crimping tool.
• L shows the direction of movement of the crimping parts and the crimping punch 16 causing this movement.
• Receiving bracket 17 to a perpendicular to the longitudinal axes of the receiving bracket facing pin 30 which of a recess 32 in a nose 31 on the the first receiving bracket 17 facing end side of the second receiving bracket 18 is engaged behind.
• an eccentric pin 20 is rotatably mounted on the first receiving bracket 17, which is rotatably mounted eccentrically on a tool housing part 29 about a second pivot point, such that the first receiving bracket 17 parallel to the longitudinal axis of the first
• Receiving bracket 17 of the drive unit B is movable away. As a result, the bolt 30 is lifted out of the recess 32 and the first receiving bracket
• Receiving bracket 17 facing away from the tool housing part 29 is mounted, are pivoted upwards.
• the head unit A can be unlocked and opened under load according to this structure.
• the eccentric pin 20 must be rotated, preferably by 180 ° counterclockwise, whereby the receiving bracket 17 is moved upward and thereby unlocked. Subsequently, the receiving bracket 17 and
• an arrow is shown on the end face of the eccentric pin 20, indicating whether the receiving bracket 17 is in the lowered closed or in the raised open position.
• the arrow E in FIG. 6 indicates a preferred distribution direction of the eccentric pin 20.
• the double arrow T illustrates by the rotation of the eccentric pin 20 effected movement direction of the receiving bracket 17th
• the hand-operated crimping tool is characterized in particular by the fact that the drive unit B has a drive shaft 1 which can be driven by an electric motor and is rotatably mounted about its longitudinal axis.
• a first embodiment of the drive unit B is shown in FIG.
• the drive unit B has, in addition to the drive shaft 1, a translationally movable transport pawl 6, which is in operative connection with an eccentric 8, which drives the crimping die 16.
• the eccentric wheel 8 is preferably formed with an external toothing 28.
• the transport pawl 6 is also provided on its side facing the eccentric 8 with a toothing, so that the transport pawl 6 with the eccentric 8 during a transport operation positively engage with each other.
• the crimping tool is preferably designed as an attachment for an electrically operated hand drill or a cordless drill, wherein the drive shaft 1 can be releasably clamped in a drill chuck of the drilling machine.
• a torque arm 21 is arranged around the drive shaft to the drive unit B to the torque support of the crimping tool s opposite the drill axially to the drive shaft 1.
• the torque arm 21 is formed at its end facing away from the crimping tool as a clamping part 38 for clamping the torque arm 21 on a drill / Akkubohrer 38.
• the torque arm 21 When attaching the crimping tool s to the drilling machine, the torque arm 21 is pushed together with the crimping tool over the drill chuck of the drilling machine 38 and preferably clamped and secured to the drilling machine with a clamp (not shown) compressing the clamping part 38.
• a clamp (not shown) compressing the clamping part 38.
• Drill chuck of the drill first clamped a (not shown) drive sleeve.
• the drive shaft 1 is pushed into this drive sleeve during the pushing on of the torque support 21 and the crimping tool, so that a torque can be transmitted from the drilling machine to the drive shaft 1 in this way.
• crank drive On the other hand, a cam drive, which will be described in more detail below with reference to Figures 3 and 5 respectively.
• the drive shaft 1 is ball-mounted in a housing of the drive unit B, preferably double-ball bearings. Between the bearings is located on the drive shaft 1, an eccentrically offset crank pin.
• the drive torque is converted via a connecting rod 4 into a translatory movement of a preferably horseshoe-shaped slide 5.
• the connecting rod 4 is fixed at one end in the open U of the horseshoe-shaped slide 5.
• the transport pawl 6 is rotatably arranged, which drives the eccentric 8.
• the pressure member 7 is preferably clamped between the end face of the slide 5 and the short leg of the preferably L-shaped transport pawl.
• Slider 5 in an alternating translational movement offset (shown by the double arrow F of Figure 4). This movement of the slider 5 is forwarded to the transport pawl 6.
• the transport pawl 6 is preferably arranged rotatably in the slide 5.
• a pan-like recess 26 is provided on the slider 5 on the transport pawl 6 facing side of the slider 5 and the transport pawl 6 has at the slider 5 end facing a in the socket-like recess 26 fitting nose 27. This makes it possible in a simple manner that the transport pawl 6 can safely follow the curved outer side of the eccentric wheel 8.
• the teeth of the toothing 28 are designed so that a force can be introduced only in one direction and on the return stroke of the transport pawl 6, the teeth of the transport pawl 6 slides over the tooth back of the toothing of the eccentric wheel 8 to the next tooth.
• a detent pawl 9 also resting against the eccentric wheel 8 ensures that during the return stroke of the transport pawl 6, the
• Eccentric 8 is held in position.
• the pawl 9 is pressed by a preferably designed as a compression spring pressure element 10 to the eccentric and slides accordingly during the feed of the transport pawl 6 on the tooth back of the toothing 28 of the eccentric 8th
• the pawl preferably allows further movement of the eccentric wheel 8 by only one tooth with each movement.
• the pawl 9 preferably at a first end a first locking lug 40 and at a second end a second locking lug 41 and a between the locking lugs 40, 41 positioned pivot axis 42.
• the pivot axis 42 is positioned so that either the first locking lug 40 or the second locking lug 41 with the toothing 28 of the Exzen- terrades 8 is engaged.
• the first locking lug 40 prevents movement of the eccentric wheel 8 counter to a thrust direction S of the transport pawl 6.
• This pawl mechanism is particularly advantageous when crimping large cable cross-sections.
• stresses are built up due to the high pressing forces in the drive mechanism. These "discharge" abruptly after the connecting rod 13 has passed the top dead center, in the downward movement of the drive mechanism.
• the eccentric wheel 8 is rotated so far that a removal of the cable lug from the crimping insert 19 is no longer possible is therefore constructed as described above, that fast rotational movements of the Excenterrades 8 are prevented and the cable lug at bottom dead center of the drive mechanism with fully opened crimping insert 19 can be removed.
• a manual actuation unit 11 for manual rotation of the eccentric wheel 8 is arranged on the eccentric wheel 8.
• This manual actuation unit 11 is fixedly connected to the eccentric 8 and has in the embodiment shown for example in Figure 3, a head in the form of a hexagonal screw head on which on opposite
• the drive unit B has a cam drive.
• an electric motor for example the electric motor of a drill, transmits the drive torque to the drive shaft 1 via the drill chuck.
• the drive shaft 1 is preferably designed as a hexagon which can be clamped in a three-jaw chuck of a drill.
• the drive shaft 1 is ball-mounted in the drive unit B, preferably double-ball bearing and transfers the torque to a cam roller 34.
• a cam 35 is arranged, which rotates with the cam roller 34.
• the already mentioned in the crank drive slide 5, which operates here in the functional principle of a centric slide moves slidably over the outer edge of the cam 35.
• the rotational movement of the drive shaft 1 and the cam 35 is formed into an alternating translational motion. Since the cam 35 has left and right rotation of the drive shaft 1 different gradients, the correct direction of rotation over a
• the drive unit B here has a curve gear 37 that, by the ratchet mechanism already described above, analogous to the ratchet mechanism in the crank drive of the
• the head unit A is rotatably mounted relative to the drive unit B about the longitudinal axis of the crimping die 16, in particular around 360 °, in order to simplify working in different directions or in confined spaces.
• a plurality of latching positions particularly preferably at regular intervals provided.

Landscapes

• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Mechanical Engineering (AREA)
• Manufacturing Of Electrical Connectors (AREA)
• Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=41325934

Family Applications (1)

Country Status (6)

Families Citing this family (9)

Family Cites Families (20)

• 2008
  • 2008-10-10 DE DE202008013411U patent/DE202008013411U1/de not_active Expired - Lifetime
• 2009
  • 2009-09-16 EP EP09783069A patent/EP2342785A1/de not_active Withdrawn
  • 2009-09-16 CN CN2009801398047A patent/CN102177623B/zh not_active Expired - Fee Related
  • 2009-09-16 JP JP2011530443A patent/JP5493180B2/ja not_active Expired - Fee Related
  • 2009-09-16 WO PCT/EP2009/061992 patent/WO2010040622A1/de active Application Filing
  • 2009-09-16 US US13/122,386 patent/US8434219B2/en not_active Expired - Fee Related

Non-Patent Citations (1)

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