• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a lowering device (108) for a cable gripper module (104) of a crimping press (100), wherein the lowering device (108) has a lowering ram (112) and an electric lowering drive (114), wherein the lowering ram (112) of the cable gripper module (104) and the punch decoupled and in a lowering direction relative to the crimping press (100) is movably mounted, wherein the Absenkstössel (112) has a contact element (118) for cable gripper module (104), wherein the electric lowering drive (114) is formed to move the lowering ram (112) in the lowering direction relative to a punch of the crimping press (100).
    公开号:CH713877A2
    申请号:CH00745/18
    申请日:2018-06-11
    公开日:2018-12-14
    发明作者:Feubli Dominik
    申请人:Komax Holding Ag；
    IPC主号:
    专利说明:

    Description: The present invention relates to a lowering device for a cable gripper module of a crimping press and to a method for positioning a cable gripper module of a crimping press.
    A crimping press can connect at least one cable end with a cable lug. The cable lug is a stamped and bent part which has a deformable crimping area. The cable end is stripped so that a strand is exposed. For crimping, the stranded wire is positioned in the crimping area by a cable gripper module. A crimping tool usually consists of a punch and an anvil. The stamp is movable. The anvil is fixed. Stamp and anvil can be designed as interchangeable tools of a crimping press. The punch can be moved back and forth, for example, via an eccentric of the crimping press. In particular, the stamp can be moved up and down. A part to be deformed is positioned on the anvil, the punch moves in the direction of the anvil, presses against the part and deforms it between the punch and the anvil. For example, the part to be deformed is a cable lug. In this case, at least one strand of a cable between the punch and the anvil in the region of the cable lug is additionally positioned before deformation by a cable gripper module. During the manufacturing process, the cable end to be processed must be held in a defined position relative to the crimping tool in order to guarantee a correct connection.
    A well-known, simple solution is to connect the Absenkstössel with the press slide. The cable gripping module has a cable gripper head, which can be moved by the Absenkstössel in the negative Z direction. This makes it possible to position the cable end in a desired, relative position to the moving crimping tool.
    From US 3 918 330 A, a device is known which has a Absenkstössel which is moved via a compressed air cylinder. A cam triggers the corresponding valves, so the movement of the Absenk-pestle can be moved in time to the press slide.
    However, these simple solutions can only ever be set up for one of two main process points. The two main points are in relation to the moving conductor stamp of the crimping tool. At the beginning of the process, the cable end should be located between the guide contours of the conductor stamp close to the crimp surface. At this upper main process point, the cable end can be sufficiently guided. During curling of the crimped edges, the forming of the contact point, the cable end should be further away (further down) from the crimp surface. This lower main processing point ensures that all strands of the cable end are crimped. However, the lower main process point is below the contact when the tool is completely closed, resulting in overstressing of the cable. For cables with a smaller cross-section, there is a risk that the cable end will be pulled out of the crimped connection.
    From EP 2 590 275 B1 it is known that overpressing can be prevented with a spring-loaded lowering ram and an end stop. Furthermore, from EP 2 775 573 B1, a lever mechanism is known, which allows the relative movement of the cable to the conductor temple in the desired manner.
    For cables with a very small cross-section, the first acceleration in the negative Z-direction is another critical process step. It is common that the cable end is accelerated abruptly by the Absenkstössel. This can lead to vibrations of the cable end, which bring the strands of the cable end in process-unfavorable positions. WO 2011 004 272 A1 discloses a construction which gently sets the cable end in motion via an additional acceleration plunger via a curve geometry and is subsequently taken over by the actual lowering plunger and moved in a known manner.
    Common to all of the aforementioned devices is the complex setup procedure during a product change.
    Next available machines are known in the market, which lower the entire cable gripping module by motor. From EP 2 174 390 B1 also a device is known, which only lowered the spring-mounted cable gripping head motor. The drive for this is located on the moving cable gripping module. Although these solutions can position the cable end in process-specific motion, their heavier design negatively affects the dynamics of the system. However, the cycle times should be a little less than two seconds per connection.
    The proposed in WO 2016 088 091 A1, standalone cable positioning module does not affect the dynamics of the cable gripping module. It can be precisely configured via a controller and easily executes the necessary movement pattern with all requirements. Unfortunately, the mechanical solution causes bends and kinks in the cable, which is a problem in the downstream processing processes.
    The aim of the invention is to overcome the disadvantages of the known solutions and to provide a retrofittable, fully automated solution.
    To achieve the object, a lowering device for a cable gripper module of a crimping press, a method for positioning a cable gripper module of a crimping press and a correspondingly designed crimping press according to the independent claims are presented. Advantageous embodiments are defined in the dependent claims and the following description.
    It is presented a lowering device for a cable gripper module of a crimping press, wherein the Absenker has the following features: a decoupled from the cable gripper module and the punch Absenkstössel which is mounted movably in a lowering relative to the crimping press, wherein the Absenkstössel a contact element for Cable gripper module comprises; and an electric lowering drive, which is adapted to move the Absenkstössel in the lowering direction relative to a punch of the crimping press.
    Furthermore, a method for positioning a cable gripper module of a crimping press, using a Absenkers is presented according to the approach presented here, wherein the method comprises the following steps: Bring the cable gripper module in a horizontal processing position;
    Moving the lowering ram from a raised position to a contact point, the lowering ram being rapidly accelerated from the raised position and slowly approaching the contact point, the contact element gently coming into contact with the cable gripper module in an indeterminate position;
    Lowering the cable gripper module to an initial position, then from the initial position to an orientation position, from the orientation position to a containment position, and from the containment position to a press position, wherein the cable gripper module is lowered using the downstroke;
    Lifting the cable gripper module to the initial position; and
    Separating the cable gripper module from the contact element; wherein the cable gripper module returns to its indeterminate position and the Absenkstössel is slowly raised to the raised position.
    Further, a crimping press is presented with a cable gripper module and a sinker according to the approach presented here.
    Possible features and advantages of embodiments of the invention may be considered, inter alia, without limiting the invention, to be based on the ideas and findings described below.
    At the beginning of the crimping process, the cable gripping module pivots the cable end in the horizontal processing position. The press carriage and the lowering plunger move in the negative Z direction towards the cable end and the cable gripper. The Absenkstössel is quickly accelerated by means of the lowering drive from its resting, raised position and slowed down shortly before hitting the contact surface of the cable gripper to minimize the impulse upon impact. As soon as the lowering plunger is in contact with the cable gripper (initial position in the Z direction), the cable end is positioned relative to the moving punch of the crimp press according to product-specific parameters.
    In the following course of the crimping process, the cable end is brought from the initial position to the orienting position, close to the crimping surface of the punch and further into an enclosing position. During pressing of the contact point, the cable end is held in a pressing position. After the pad has been pressed, the cable is returned to its original position, after which the cable gripping module pivots out of the horizontal processing position. The Absenkstössel is moved back into the raised position.
    The lowering drive of the lowering device is controlled as a function of a position of the punch. A speed of the Absenkstössels is independent of a speed of the punch. The Absenker is thus basically independent of the punch of the crimping press movable.
    The contact element of the Absenkers can be adapted to abut against a contact surface of the cable gripper module and to press this in the lowering direction. A contact element may for example consist of a plastic material. By an elasticity of the plastic material, a pulse can be damped when the contact element and the contact surface meet. Alternatively or additionally, a shock absorber may be arranged on the Absenkstössel. The shock absorber can transmit the pulse delayed over a defined distance to the cable gripper module.
    The approach presented here allows a simple setup procedure in a product change. Due to the light construction, the dynamics of the system are influenced in a positive way. Bends and kinks in the cable are avoided, which simplifies downstream processing.
    In a first preferred embodiment, the lowering drive is coupled via a rack and pinion with the Absenkstössel. For this purpose, the lowering drive on a pinion, which engages in a coupled with the Absenkstössel rack. By means of a rack and pinion drive, an angular position of the lowering drive is coupled directly to a position of the lowering ram. The lowering drive is freely programmable. The rack and pinion drive is very dynamic, so suitable to transmit high speeds and forces.
    The lowering drive can be position-controlled. For example, may be coupled to the Absenkstössel with a position sensor. Likewise, the lowering drive can be coupled to an angular position sensor. To lower the lowering drive can be controlled until the Absenkstössel has taken a predetermined position, or has departed a sequence of positions.
    The Absenkstössel and the lowering drive can be arranged on a decoupled from the crimping rack.
    In a further embodiment, the lowering drive and the Absenkstössel can be mounted transversely to the lowering direction movable on a separate frame. The lowering device can have an electric positioning drive which is designed to position the lowering drive and the lowering push rod transversely to the lowering direction relative to a separate frame. The method may include a step of aligning. In this case, the Absenkstössel is aligned before the crimping process using the positioning transversely to the lowering direction. The positioning drive moves the lowering drive and the lowering ram in one positioning direction. The positioning direction is oriented transversely to the lowering direction and transversely to the pivoting direction. The positioning drive can be used to set a distance between the lowering ram and the crimping press. For example, so the Absenkstössel can be positioned relative to the cable gripper module when the cable gripper module is moved for a changed cable length.
    It should be noted that some of the possible features and advantages of the invention are described herein with reference to different embodiments. One skilled in the art will recognize that the features of the apparatus and method may be suitably combined, adapted or interchanged to provide further embodiments of the invention.
    Embodiments of the invention will now be described with reference to the accompanying drawings, wherein neither the drawings nor the description are to be construed as limiting the invention.
    Fig. 1 shows an illustration of a crimping press according to an embodiment;
    2 shows an illustration of a lowering device according to an exemplary embodiment with a positioning drive for adjusting a position of the lowering ram in the cable direction and an adjacent crimping tool;
    FIG. 3 is an illustration of positions of a cable end relative to a conductor die; FIG. and
    4 shows a time / displacement curve of a lowering device according to an exemplary embodiment.
    The figures are only schematic and not to scale. Like reference numerals designate like or equivalent features throughout the several figures.
    Fig. 1 shows an illustration of a crimping press 100 according to an embodiment. The crimping press 100 is equipped with an exchangeable crimping tool 102. A cable gripper module 104 positions a cable 106 between a movable plunger and a fixed anvil of the crimping tool 102. A descender 108 according to the approach presented herein is disposed in front of the crimping press 100 and configured to lower the cable gripper module 104 in response to a position of the plunger. Absenkstössel 112 and lowering drive 114 are attached to the Crimppresserahmen.
    For the crimping an ungreased cable lug is placed on the anvil. The cable lug has at least two deformable contact lugs for contacting an electrical conductor of the cable 106. The cable lug may also have attachment tabs for enclosing insulation of the cable 106. The cable 106 is inserted from the cable gripper module 104 into a space between the punch and the anvil without touching the cable lug. The cable 106 is lowered from the sinker 108 leading the punch in a lowering direction on the cable lug. The stripped conductor is located in the area of the contact tabs. The conductor is insulated in the area of the fastening straps. When the punch meets the anvil, the contact tabs are rolled up over the conductor, squeezed, and electrically contact the cable. The fastening tabs are rolled up over the insulation and provide a mechanical connection to the cable 106 ago.
    The lowering direction is vertically aligned here. This essentially corresponds to a direction of movement of the stamp. The Absenkstössel 112 is coupled to the lowering drive 114. The lowering drive 114 positions the lowering plunger 112 in the lowering direction via a toothed rack drive 116.
    The Absenkstössel 112 has at a cable gripper module 104 end facing a contact element 118 to the cable gripper module 104. The contact element 118 is embodied here as a pressure piece which is aligned with a contact surface of the cable gripper module 104 or a cable gripping head 120 movable in the lowering direction. When the contact element bears against the contact surface, the cable gripper module 104 or the cable gripping head 120 is moved together with the lowering plunger 112 in the lowering direction.
    The contact element 118 may consist of a plastic material. By compared to metallic materials higher elasticity damage to the Absenkstössels and / or the contact surface can be prevented during the meeting.
    Fig. 2 shows a representation of a lowering 108 according to an embodiment with a positioning drive 212 for adjusting a position of the Absenkstössels 112 in the cable direction and an adjacent crimping tool 102. The Absenker 108 substantially corresponds to the Absenker in Fig. 1. In addition to points the sinker 108 a freestanding frame 110 on. The frame 110 is anchored on a foundation, not shown here, spaced from the crimping press 100. On the frame 110, the Absenkstössel 112 is movably mounted in the lowering direction. Of the
    Absenker 108 has, in addition to the lowering drive 114 to move the Absenkstössel 112 in the Z direction, the additional positioning drive 212 to adjust a horizontal position of the Absenkstössels 112 in the cable direction to the respective cable product. A bearing angle 210 for the lowering drive 114 and the Absenkstössel 112 are mounted transversely to the lowering direction on the frame 110 movable. The positioning drive 212 is designed to position the bearing block 210 with the lowering drive 114 and the lowering plunger 112 via a spindle drive 214 in the main extension direction of the cable 106. Thus, the Absenkstössel 112 can be arranged in different working positions, for example, when the cable gripper module 104 is offset in the main direction of extension. The Absenkstössel 112 is brought by the positioning drive 212 in an upstream, automatic Einrichtungsroutine in the correct position along the cable axis to press with the Absenkstössel 112 at the required position on the contact surface of the cable gripping head 120 can.
    Fig. 3 shows an illustration of a punch 204 of a crimping press. The punch 204 essentially corresponds to the punch 204 in FIG. 2. The punch 204 has a closing geometry which is designed to roll the contact lugs of a cable lug out of its opened initial position and then to press it into a kidney shape. The strand of the cable 106 is positioned relative to the punch 204 in an orientation position 500, a containment position 502, and a press position 504 during the crimping process by the present descender 108.
    4 shows a time / displacement curve of a lowering device according to an exemplary embodiment. In this case, a lowering curve 600 of a cable gripper module, as well as a movement curve 700 of a Absenkstössels the Absenkers is shown. Here is a single crimping process shown. The lowering curve 600 is plotted in a diagram which has plotted the time t on its abscissa and a z coordinate on its ordinate. The z-coordinate is described here as the vertical direction. In the diagram, a locus 602 of a stamp of a crimping press according to the approach presented here is also plotted. The locus 602 is substantially sinusoidal due to the drive of the die with an eccentric.
    At the beginning of the crimping process, the Absenkstössel is stationary in a raised position 606. The raised position 606 is higher than the initial position 604. The cable gripper module is already in the horizontal processing position below the Absenkstössels in an indeterminate position 608th
    First, the Absenkstössel is quickly brought out of the lifted position 606 and slowly lowered to the contact point 700 with the cable gripping module, so that while a contact between the cable gripper module and the Absenkstössel is made via the contact element. The cable gripper module is further lowered via the lowering plunger to the initial position 604.
    Shortly before the stamp reaches the z-coordinate of the cable gripping module, the cable gripping module is lowered to the orientation position 500. Up to the orientation position 500, the cable gripping module is moved slower than the punch. From the orientation position 500, the cable gripping module is moved to the enclosing position 502. Between the orientation position 500 and the enclosing position 502, the cable gripping module is moved faster than the stamp. From the enclosing position 502, the cable gripping module is moved to the pressing position 504. Between the enclosing position 502 and the pressing position 504, the cable gripping module is moved slower than the punch 204. In the pressing position 504, the punch reaches its lowest point, in which the direction of movement of the punch reverses. After the pressing position 504, the direction of movement of the cable gripping module is reversed. Until shortly before the initial position 604, the cable gripping module is raised parallel to the punch. Thereafter, the movement of the cable gripping module slows down until the cable gripping module and the Absenkstössel separate. The cable gripping module remains in its recovered undetermined position 608 and the lowering plunger returns to its raised position. Finally, the cable gripping module is moved out of the horizontal processing position.
    Finally, it should be pointed out that terms such as "having", "comprehensively", etc., do not exclude other elements or steps, and terms such as "a" or "an" do not exclude a multitude. It should also be appreciated that features or steps described with reference to any of the above embodiments may also be used in combination with other features or steps of other embodiments described above. Reference signs in the claims are not to be considered as limiting.
    List of Reference Numerals 100 Crimping press 102 Crimping tool 104 Cable gripper module 106 Cable 108 Lowering 110 Frame 112 Lowering plunger 114 Lowering drive 116 Rack and pinion 118 Contact element 120 Cable gripping head 202 Joint 204 Plunger 206 Anvil 210 Bearing angle 212 Positioning drive 214 Spindle drive 500 Orientation position 502 Wrapping position 504 Pressing position 600 Lowering curve 602 Locus 604 Start position 606 off position 608 indefinite position 700 movement curve 702 contact point
    权利要求:
    Claims (9)
    [1]
    claims
    A sinker (108) for a cable gripper module (104) of a crimping press (100), the descender (108) comprising: a down - plunger (112) decoupled from the cable gripper module (104) and the plunger (204) a lowering device relative to the crimping press (100) is movably mounted, wherein the Absenkstössel (112) has a contact element (118) to the cable gripper module (104); and an electric lowering drive (114) configured to move the lowering ram (112) in the lowering direction relative to a punch (204) of the crimping press (100).
    [2]
    2. Absenker (108) according to claim 1, wherein the contact element (118) is designed as a pressure piece, which is adapted to abut against a contact surface of the cable gripper module (104) and to press this in the lowering direction.
    [3]
    3. Absenker (108) according to any one of the preceding claims, wherein the Absenkstössel (112) and the lowering drive (114) on one of the crimping press (100) decoupled frame (110) are arranged.
    [4]
    4. lowering implement (118) according to claim 3, wherein the lowering drive (114) and the Absenkstössel (112) are mounted transversely to the lowering movable on the frame (110), and the Absenker (108) has an electric positioning drive (212), adapted to position the lowering drive (114) and the lowering ram (112) transversely to the lowering direction relative to the frame (110).
    [5]
    5. Absenker (108) according to any one of the preceding claims, wherein the lowering drive (114) via a rack and pinion (116) with the Absenkstössel (112) is coupled.
    [6]
    6. Absenker (108) according to any one of the preceding claims, wherein the lowering drive (114) is freely programmable.
    [7]
    A method of positioning a cable gripper module (104) of a crimping press (100) using a descender (108) according to any one of claims 1 to 6, the method comprising the steps of: bringing the cable gripper module (104) to a horizontal processing position; Moving the lowering ram (112) from a raised position (606) to a contact point (700), rapidly accelerating the lowering ram (112) from the raised position (606) and slowly approaching the contact point (700), the contact element (118) gently comes into contact with the cable gripper module (104) in an indeterminate position (608); Lowering the cable gripper module (104) to an initial position (604), then from the initial position (604) to an orientation position (500), from the orientation position (500) to an enclosing position (502) and from the enclosing position (502) into a pressing position (604). 504), wherein the cable gripper module (104) is lowered using the Absenkstössels (112); Lifting the cable gripper module (104) to the initial position (604); and disconnecting the cable gripper module (104) from the contact element (118); wherein the cable gripper module (104) returns to its indeterminate position (608) and the lowering pusher (112) is slowly raised to the raised position (606).
    [8]
    8. The method of claim 7, further comprising the step of aligning, wherein the lowering plunger (112) is aligned transversely of the lowering direction prior to the crimping process using a positioning drive (212) of the dropper (108).
    [9]
    9. Crimping press (100) with a cable gripper module (104) and a sinker (108) according to one of claims 1 to 6.
    类似技术:
    公开号 | 公开日 | 专利标题
    DE112010005886B4|2015-12-24|Method and device for producing a crankshaft
    EP2797182B1|2020-06-17|Cable conversion device for cutting, stripping and converting a cable with crimp contacts
    EP2590275B1|2016-03-02|Circuit positioning device
    CH700897B1|2014-02-14|Apparatus and method for merging conductors for producing a double crimp.
    DE4415973A1|1995-11-09|Device for use in a press for feeding connecting elements and for fastening them in workpieces by pressing
    WO2016088091A1|2016-06-09|Centring unit, crimping apparatus and cable processing installation
    DE102015007295B3|2016-09-08|setting device
    DE202018103289U1|2018-06-22|Lowering device for a cable gripper module of a crimping press
    WO2017186673A1|2017-11-02|Transport device having gripping tongs
    EP2299831B1|2012-10-03|Method and device for forming pretzels
    EP2142935B1|2010-08-25|Closure mechanism for pressure test chambers for testing electronic components, in particular ics
    EP2779327B1|2016-09-14|Cable rotating pincer and method of guiding an electrical conductor
    EP0708508A1|1996-04-24|Process and device for equipping connector housings
    DE102006053223B3|2008-02-07|Sheet metal punch has centering tip surrounded by circular shoulder in close proximity to surplus metal ejector pins
    EP0235378B1|1991-01-16|Machine for pressing and tying bales
    EP3448597B1|2020-06-10|Transport method for transferring workpieces
    EP2384833B1|2016-03-02|Blank holder control in the production of can bodies
    EP0923098B1|2006-09-20|Device and method for applying a metallic contact member to a support by welding
    AT520588A1|2019-05-15|Apparatus for cutting individual bars from a wire passing in the direction of production and for accurately positioning the ends of the bars
    EP3520179B1|2020-08-05|Device, method, and system for inverse crimping
    CH640981A5|1984-01-31|Appliance for working the connecting wires of electrical components
    EP3790678B1|2022-03-16|Method using a manufacturing device for shaping sheet metal
    EP2779328B1|2017-03-08|Method and device for producing a connector
    DE102017118654A1|2019-02-21|Ironing arrangement, forming device with a Abstreckwerkzeuganordnung and method for forming a cup-shaped output part
    DE102016115790A1|2018-03-01|Method and a tool for introducing a feature into a component
    同族专利:
    公开号 | 公开日
    DE202018103289U1|2018-06-22|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3918330A|1974-11-18|1975-11-11|Artos Engineering Co|Insulated wire cutting and stripping apparatus|
    US7774927B2|2007-07-27|2010-08-17|Tyco Electronics Corporation|Wire positioning device for a wire termination machine|
    WO2011004272A1|2009-07-08|2011-01-13|Schleuniger Holding Ag|Device and method for lowering and positioning thin wires|
    PT2590275E|2011-11-02|2016-06-02|Schleuniger Holding Ag|Circuit positioning device|
    EP2775573B1|2013-03-04|2015-10-14|Komax Holding AG|Crimping station|
    WO2016088091A1|2014-12-04|2016-06-09|Schleuniger Holding Ag|Centring unit, crimping apparatus and cable processing installation|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE102017113018|2017-06-13|
    [返回顶部]