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
  • H01R43/048—Crimping apparatus or processes
  • H01R43/055—Crimping apparatus or processes with contact member feeding mechanism
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
  • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
  • B23P19/001—Article feeders for assembling machines

Definitions

• the invention relates to a transport unit which can be used in an automatic crimping machine and which is used for the step-by-step transport of a belt strip with ferrules.
• the publication DE 197 37 148 A1 shows such a transport unit.
• a transport pawl is articulated on an oscillatingly driven transport slide, the pivot bearing of which oscillates with the transport slide.
• a feed nose of the transport pawl is attached to the respective ferrules so that they are pushed out individually from a channel of the transport unit.
• the feed nose has a contact area that is aligned perpendicular to the feed direction, so that during a feed movement the feed nose remains in contact with the ferrule and safely transports it in the feed direction.
• the entire belt strip is tightened.
• the other side of the feed nose is designed in such a way that when the transport slide moves back against the feed direction, it slides off the adjacent ferrule and does not pull it back.
• a transport unit for the same purpose is disclosed in the publication DE 197 14 964 C1.
• the transport pawl Apart from the transport pawl, whose swivel bearing oscillates with the transport slide (sled), it also has a ratchet that works in a basically similar way, the nose (approach) of which also dips between the individual ferrules.
• the locking pawl is articulated on the base body of the transport unit.
• the nose of the pawl has a contact area which is aligned perpendicularly to the direction of advance and which remains in contact with the wire-end ferrule in question during a retraction movement of the transport nose of the transport pawl and holds it securely.
• the entire strap strip is held.
• the other side of the nose is designed in such a way that when the Transport lug slips off the adjacent ferrule and does not hold it back.
• the pawl In the installation position shown in the figures of DE 197 14 964 C1, the pawl is arranged above the wire-end ferrules. A long arm of the pawl extends from its pivot to the ferrule to be held. The weight of this long arm is reinforced by a spring.
• the transport unit is therefore not suitable for an inverted installation position, in which the pawl should enter between the ferrules from below, since in this case the long arm of the pawl reduces the force with which the nose enters.
• the disadvantage of such transport units is that the function of the single pawl is dependent on the installation position of the transport unit.
• the invention is based on the object of creating a transport unit whose holding function is improved in different installation positions.
• the claimed transport unit has a base body in which a sleeve channel is formed, through which a belt strip with ferrules can be moved step by step in a feed direction by means of a transport lug.
• the transport lug is formed on a transport pawl, which is articulated by means of a pivot bearing to pivot on a transport slide.
• the transport slide is guided parallel to the sleeve channel and can preferably be driven in an oscillating manner by means of a coupling device (eg a pin) and a main spring.
• the transport lug is pushed with a force transverse to the feed direction and transverse to the sleeve channel between two ferrules.
• the belt strip can be supported in a retraction direction opposite to the advance direction by means of a first retaining lug.
• the first retaining lug is formed on a first retaining pawl, the first pivot bearing of which is fixed to the base body.
• the first retaining lug is also pushed with a force transverse to the feed direction and to the sleeve channel between two ferrules.
• the belt strip can also be supported in the retraction direction by means of a second retaining lug, the second retaining lug being formed on a second retaining pawl, the second pivot bearing of which is also fixed to the base body.
• the second retaining lug is also pushed with a force transverse to the feed direction and to the sleeve channel between two wire end sleeves.
• the retaining lugs of the retaining pawls have, in the manner known per se from DE 197 14 964 C1, a contact area which is aligned perpendicularly to the feed direction and which remains in contact with the affected ferrule during a retraction movement of the transport lug and holds it securely. The entire strap strip is held.
• the other side of the two retaining lugs is designed in such a way that when the transport lug moves forward, they slide off the adjacent ferrule and do not hold it back.
• the holding function is further improved in different installation positions when the two holding pawls are opposite one another with respect to the sleeve channel.
• a base-fixed stop for limiting the pivoting movement in the insertion direction is preferred for each retaining pawl, against which a respective extension of the retaining pawl can come into contact, which is formed with respect to the pivot bearing on a side of the retaining pawl opposite the retaining lug.
• the entire transport unit is made of metal.
• the force of the retaining lugs and/or the transport lug can/can simply be generated from their own weight or from the weight of a weight section of the respective pawl in terms of device technology.
• the weight portion may be the dead weight of the pawl and/or lug.
• the transport unit according to the invention is preferably installed in an automatic crimping machine in an installation position in which the ferrules are moved horizontally through the ferrule channel.
• the weight section with respect to the pivot bearing must be formed on an extension of the pawl opposite the nose. If, on the other hand, the lug is to be pushed from above between two ferrules in the preferred installation position of the transport unit, then in the case of the weight section, this must be formed with respect to the pivot bearing on the area of the pawl on which the lug is also formed.
• the pawls are inserted between the ferrules safely and independently of the preferred installation position, it is particularly preferred if at least part of the respective force is generated by means of a spring which acts on the respective pawl.
• this spring is supported on a spring system fixed to the base body, and in the case of the transport pawl, the spring is supported on the transport slide. It is particularly preferred if all three pawls each have a spring that tensions the respective nose between the ferrules.
• the two retaining latches are the same.
• they can Retaining pawls can also be designed to adapt to the existing space with different dimensions, in particular different thicknesses.
• the transport lug and the first retaining lug are pushed from above between two wire-end ferrules in each case in the preferred installation position of the transport unit, while the second holding lug is pushed from below between in each case two wire-end ferrules.
• a cover is attached to the outside of the base body and extends along or parallel to the sleeve channel.
• the second pivot bearing of the second retaining pawl is arranged in a bearing section of the cover.
• the bearing section can also form a wall section of the sleeve channel on its upper side in the preferred installation position.
• the two retaining pawls are preferably arranged between the transport pawl and an outer surface of the lid.
• At least one of the three pawls may have an extension opposite the lug relative to the respective pivot bearing.
• a pin may be secured to the extension, movable with pivotal movement of the latch, and extending outwardly through an outer surface of the cover. This allows the movement of the affected latch to be observed and, in the event of a fault, the affected latch can be moved manually without having to remove the cover.
• all three pawls have such a pin.
• the pivot bearing of the transport pawl is arranged on the transport slide.
• a recess eg a depression
• the coupling device for example a pin
• the bearing section fixed to the cover is also arranged essentially in the recess of the transport slide. The bearing section with the second retaining pawl mounted therein can then be positioned as close to the transport pawl as possible to save space during assembly of the cover.
• a separator plate is formed or attached to the transport slide to keep the ferrules at a level, e.g.
• the separating plate preferably has an extension directed in the feed direction, which is moved out and retracted in an oscillating manner in the feed direction.
• An end face of a respective ferrule can be brought into contact with the extension transversely to the feed direction when the ferrule is severed.
• a through-hole (e.g. a slot) in the separating plate can be arranged between the extension and a main portion of the separating plate, into which a separating knife for separating a ferrule from the belt strip can be inserted.
• the main section of the separating plate can be arranged and/or guided, at least in sections, in a recess on an inside of the cover.
• the recess may comprise the bearing portion of the lid, the bearing portion extending through a through-hole of the main portion of the divider panel.
• the pin of the transport pawl can also extend through the through-hole to the outer surface of the cover.
• a spring-loaded flap at one foot of the sleeve channel ensures that the last ferrule of the belt strip does not jam in the sleeve channel.
• Figure 1 shows the embodiment of the transport unit according to the invention in a view
• FIG. 2 shows the transport unit from FIG. 1 in a further view, with a cover and a separating plate having been omitted,
• FIG. 3 shows the transport unit in the view from FIG. 2, again with the cover and the separating plate being omitted
• FIG. 4 shows the transport unit in the view from FIGS. 2 and 3, with only the cover being omitted
• FIG. 5 shows the transport unit from the previous figures in a perspective view, with the cover omitted
• FIG. 6 shows a front part of the transport unit in a perspective view, with the cover and the partition plate having been omitted,
• FIG. 7 shows the transport unit in a perspective view
• FIG. 8 shows the cover of the transport unit in a view from the inside.
• the directions “top”, “bottom”, “inside” and “outside” mentioned in the following description of the figures relate to a preferred installation position of the transport unit in a crimping machine.
• the transport unit In this installed position, the transport unit is arranged in a side wall of the automatic crimping machine, with the belt strip and the wire-end sleeves being guided horizontally in a sleeve channel of the transport unit.
• the transport unit can also be installed in all other installation positions in a crimping machine.
• Figure 1 shows the embodiment of the transport unit according to the invention in a view from above.
• a belt strip with 0.5-2.5qmm ferrules is inserted into a sleeve channel 1 of the transport unit.
• a feed direction 2 of the belt strip is directed from right to left in FIG.
• the sleeve channel 1 is formed in a base body 4 and covered with a cover 6 .
• a pin 8 protrudes from the base body 4 on a side of the base body 4 opposite the cover 6 .
• the cover 6 is on the outside and the pin 8 protrudes inwards towards the interior of the Crimping machines, so that the pin 8 can be driven to oscillate, and the cover 6 can be removed from the outside.
• Figure 2 shows the transport unit of figure 1 in a side view from the outside, the cover 6 and a partition plate (shown in figure 4) having been omitted.
• the feed direction 2 extends from left to right in this representation.
• the pin 8 is inserted into a transport slide 10 inside the base body 4 and fastened there.
• the transport slide 10 is tensioned by the pin 8 against the force of a main spring 12 against the feed direction 2 into the position shown in FIG.
• a transport pawl 14 which is articulated by means of a pivot bearing (shown in FIG. 4) and whose transport nose (also shown in FIG. 4) is retracted between two ferrules 16 of the belt strip 18 is carried along.
• the pivot bearing of the transport pawl 14 is arranged in a depression or recess 20 of the transport slide 10 .
• a first retaining pawl 22 is mounted in the base body 4 by means of a pivot bearing 22b.
• a first retaining lug 22a enters between the wire end sleeves 16 from above.
• a second retaining pawl 24 is provided by means of a pivot bearing 24b.
• a second retaining lug 24a enters between the wire end sleeves 16 from below.
• the two retaining pawls 22, 24 are identical in construction and are arranged symmetrically with respect to the sleeve channel 1 and the feed direction 2, respectively.
• the two holding pawls 22, 24 pivot in a largely uniform manner.
• one of the two holding pawls 22, 24 does not swing in, so that the holding function is only implemented by the other holding pawl 22, 24.
• the pivot bearing 24b of the second retaining pawl 24 is also arranged in the recess of the bearing section 26.
• the bearing section 26 is attached to the cover 6, which is attached to the base body 4 as explained.
• FIG. 2 shows the two holding lugs 22a, 24a and the covered transport lug in a maximally engaged position and the transport slide 10 in a maximally retracted position against the feed direction 2, in which the main spring 12 is maximally tensioned.
• FIG. 4 shows the transport unit in a side view according to FIGS. 2 and 3. The end of the advance movement is shown, at which the two retaining lugs 22a, 24a are pivoted back into the sleeve channel 1 in order to prevent the belt strip 18 from moving backwards. now when the transport nose 14 is pulled back by the transport slide 10.
• the pivot bearing 14b of the transport pawl 14 can also be seen in FIG.
• a partition plate 28 (omitted from the previous figures) is fixed to the transport pusher 10 and oscillates with the transport pusher 10 .
• the partition plate 28 is the one shown translucent in FIG. It has an extension 28a directed in the feed direction, which in the turning position shown in FIG. 4 was moved out in the feed direction with the wire end sleeve 16 in question.
• An end face of a respective wire-end sleeve 16 concerned can be brought into contact with the extension 28a transversely to the feed direction when the wire-end sleeve 16 is severed.
• the separating plate 28 serves to keep the ferrules 16 at a height level.
• a slot-shaped through-hole 28b Formed between the extension 28a and a main section of the separating plate 28 is a slot-shaped through-hole 28b, into which a separating knife for separating the wire-end ferrule 16 in question from the belt strip 18 is inserted.
• the transport lug 14a slides over the foremost ferrule 16 of the belt strip 18 and transports the next ferrule 16, independent of the cross-section, during a subsequent forward stroke to the separating edge of the transport unit, where the ferrule 16 then separates can be separated by a separating knife.
• the belt strip 18 is held by the two spring-loaded holding pawls 22, 24, which engage a collar of the ferrules 16.
• FIG. 5 shows the transport unit from the previous figures in a perspective view, with only the cover 6 being omitted.
• the partition plate 28 is not shown as translucent. The position roughly corresponds to that in Figure 4.
• All three pawls 14, 22, 24 have an extension which is opposite the nose 14a, 22a, 24a with respect to the pivot bearing 14b, 22b, 24b.
• On each extension is a pin 14c, 22c, 24c arranged transversely to the feed direction fixed, which extends through an outer surface of the lid 6 through to the outside.
• the partition plate 28 has a central through hole 28c through which the pin 14c of the transport pawl (not shown in Figure 5) and the pin 24c of the second holding pawl 24 extend. Furthermore, when the cover 6 is mounted, its bearing section 26, in which the second retaining pawl 24 is mounted, is passed through the central through-hole 28c of the separating plate 28.
• FIG. 6 shows a section of the transport unit in a perspective view from the front, with the cover 6 and the separating plate 28 once again being omitted.
• the gradation of the sleeve channel 1 can be seen, with which it is adapted to the shape of the ferrules 16.
• a spring-loaded flap 30 is provided at a foot of the sleeve channel 1 so that the last ferrule 16 of the strap strip 18 does not jam in the sleeve channel 1 .
• FIG. 7 shows the transport unit including the cover 6 in a perspective view.
• the cover 6 has a depression 32 on its inside which serves as a guide for the separating plate 28 .
• FIG. 8 shows the cover 6 from FIG. 1 in a view from the inside.
• the recess 32 is shown. It has two edges parallel to the feed direction, which serve as a guide for the separating plate 28 during its oscillating movement.
• the following sequence of components results transversely to the feed direction 2 or transversely to the sleeve channel 1 from the outside inwards: on the very outside, the outer end sections of the pins 14c, 22c, 24c of the pawls 14, 22, 24 , then the outer surface of the cover 6, then the recess 32 of the cover 6 with the partition plate 28, then the bearing section 26 of the cover 6 and the two retaining pawls 22, 24, then the transport pawl 14, then the narrow or narrow part of the sleeve channel 1, and finally completely inside the outer end section of the pin 8.
• the recess 20 of the transport slide 10 extends over the two retaining pawls 22, 24 and over the transport pawl 14.

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• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Mechanical Engineering (AREA)
• Manufacturing Of Electrical Connectors (AREA)
• Mechanical Coupling Of Light Guides (AREA)
• Special Conveying (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=83398255

Family Applications (1)

Country Status (7)

Citations (2)

Family Cites Families (3)

• 2021
  • 2021-09-06 DE DE102021123012.8A patent/DE102021123012A1/de active Pending
• 2022
  • 2022-09-02 WO PCT/EP2022/074522 patent/WO2023031436A1/de not_active Ceased
  • 2022-09-02 EP EP22773443.1A patent/EP4399773A1/de active Pending
  • 2022-09-02 JP JP2024514565A patent/JP2024532545A/ja active Pending
  • 2022-09-02 US US18/688,755 patent/US20240388050A1/en active Pending
  • 2022-09-02 KR KR1020247009906A patent/KR20240063125A/ko active Pending
  • 2022-09-02 CN CN202280060327.0A patent/CN117957730A/zh active Pending

Patent Citations (2)

Non-Patent Citations (1)

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