Embodiments of the present disclosure generally relate to systems and methods for crimping a structure, such as a conductive wire assembly.
Conductive wire assemblies are used to provide power and/or data signals between various components. A typical conductive wire assembly includes an insulating cover that surrounds portions of a conductive wire. A distal end of the insulating cover may be stripped in order to expose a portion of the conductive wire so that the exposed portion of the conductive wire may contact conductive portions of a contact terminal, for example.
In order to electrically and mechanically connect a conductive wire assembly to a contact terminal, portions of the conductive wire assembly and the contact terminal may be crimped together. One known method crimps an outer housing of the contact terminal with the conductive wire of the conductive wire assembly in order to provide a conductive electrical connection therebetween. Additionally, a separate seal is crimped around the insulating cover in order to provide a fluid tight seal (for example, a seal that is air and gas tight) that prevents water or moisture from infiltrating into the conductive interface between the conductive wire and the contact terminal. As such, the process of connecting the conductive wire assembly to the contact terminal includes two separate and distinct crimping operations.
Another known method crimps a conductive wire to a housing of a contact terminal and then heat shrinks a separate seal around the insulating wire. This method also provides two separate and distinct steps, namely, a crimping operation and a heat-shrinking operation.
In general, in order to crimp a contact terminal to a conductive wire assembly, a high degree of force is used to compress components together. Typically, large stationary tools are used to compress components together, such as through crimping.
As can be appreciated, known methods of connecting a conductive wire to a contact terminal may be time and labor intensive. For example, in using multiple forming operations, such as multiple crimping and/or crimping and heat-shrinking operations, time and cost is added to the manufacturing process. Accordingly, a need exists for a simpler and more efficient system and method for connecting a conductive wire assembly to a contact terminal.
Certain embodiments of the present disclosure provide a rotary crimping tool assembly configured to crimp a portion of a structure. The rotary crimping tool assembly may include a tool housing defining a crimping chamber, and one or more crimp wheels within the crimping chamber. The crimping chamber is configured to receive the portion of the structure in proximity to the one or more crimp wheels. The crimp wheel(s) is configured to be pressed into and rotated relative to the portion of the structure to form one or more crimps in the portion of the structure.
In at least one embodiment, the tool housing may include a first frame secured to a second frame. The rotary crimping tool assembly may include an adjustable mount adjustably secured to one or both of the first and second frames, and one or more rollers rotatably secured to the adjustable mount. The crimp wheel(s) may be secured to one of the first and second frames. The crimping chamber may be configured to receive the portion of the structure between the crimp wheel(s) and the roller(s). The adjustable mount may be configured to be adjusted to compress the portion of the structure between the crimp wheel(s) and the roller(s). The crimp wheel(s) and the roller(s) may be configured to be rotated about the portion of the structure to form the crimp(s).
In at least one embodiment, first and second rollers are rotatably secured to first and second roller axles that are secured to the adjustable mount. A first crimp wheel is rotatably secured to a crimp axle that is rotatably secured to one of the first and second frames. The crimp axle resides within a central plane, and the first and second roller axles reside within respective first and second roller planes, which are parallel with and offset from the central plane.
The rotary crimping tool assembly may include an adjustment member operatively connected to the adjustable mount. The adjustment member is configured to adjust the adjustable mount in relation to the crimping chamber. In at least one embodiment, the adjustment member includes a threaded shaft connected to a handle. The threaded shaft is threadably secured within a portion of one of the first or second frames. The adjustment member may include a retaining structure extending from a distal end of the threaded shaft. The retaining structure may be secured within a recessed area of the adjustable mount.
Each crimp wheel may include a first crimping surface and a second crimping surface. The first crimping surface may differ from the second crimping surface. In at least one embodiment, each crimp wheel may include a conductor crimp member and a sealing crimp member. The conductor crimp member has a different shape than the sealing crimp member, and is configured to form a first crimp at a first depth into the portion of structure. The sealing crimp member is configured to form a second crimp at a second depth into the portion of structure. The first depth may be deeper than the second depth.
Certain embodiments of the present disclosure provide a method of crimping a structure. The method may include positioning a portion of the structure to be crimped into a crimping chamber of a rotary crimping tool assembly, pressing one or more crimp wheels into the portion of the structure to be crimped, wherein the compressing includes forming one or more initial crimps into the portion of the structure, and rotating the crimp wheel(s) relative to (such as about) the portion of the structure to form one or more full crimps in the portion of the structure.
Certain embodiments of the present disclosure provide a rotary crimping tool assembly configured to crimp a terminal housing of a contact terminal into an insulated wire. A conductive portion of the insulated wire is within the terminal housing. The rotary crimping tool assembly may include a tool housing defining a crimping chamber, an adjustable mount configured to be moved within the crimping chamber, and one or more crimp wheels within the crimping chamber. The crimping chamber is configured to receive the terminal housing in proximity to the crimp wheel(s). The adjustable mount is configured to urge the contact terminal into the crimp wheel(s). The tool housing is configured to be rotated about the terminal housing to form one or more crimps in the terminal housing.
Embodiments of the present disclosure provide a rotary crimping tool assembly that may be used to crimp components of a structure, such as conductive wire assembly and/or a contact terminal, grounding jumper, spliced component, and/or the like together. The rotary crimping tool assembly may be used to crimp conductive portions of an insulated wire to a contact terminal, and crimp sealing members of the insulated wire and the contact terminal together. The rotary crimping tool assembly may be sized and shaped to be operated by hand. For example, the rotary crimping tool assembly may be a handheld device that may be easily transported.
Embodiments of the present disclosure provide systems and methods for crimping components of a conductive wire assembly together in a rotary manner. For example, the systems and methods may crimp components together through one or more revolutions. Instead of a cutting wheel, embodiments of the present disclosure provide a rotary crimping tool assembly that may include one or more crimping wheels that are configured to indent a contact terminal housing during a revolution of the tool about an axis. Each crimp wheel may be various sizes and shapes. For example, a portion of the crimp wheel may include a conductor crimp member and a sealing crimp member. The conductor crimp member may have a first height that exceeds a second height of the sealing crimp member. As such, the conductor crimp member may form a deeper crimp, while the sealing crimp member may provide one or more peaks that are shallower than the crimp formed by the conductor crimp member.
The upper frame 104 is supported on the bottom frame 102, and includes upstanding lateral walls 124 that are supported on or otherwise by the upstanding lateral walls 108 of the bottom frame 102. The lateral walls 124 connect to a crossbeam 126. An adjuster retainer 128, such as a block, area, or the like having a threaded channel passing therethrough, may extend upwardly from the crossbeam 126.
An adjustable mount 130, such as one or more plate(s), block(s), platform(s), panel(s) or other such structure(s), is movably secured to the upper frame 104 between the lateral walls 124 and the crossbeam 126. The adjustable mount 130 includes a main body 132 that is adjustably positioned between the lateral walls 124 in the directions of arrows 134. Opposed brackets 136 extend downwardly from the main body 132 at opposite ends (for example, the front and rear ends). Each bracket 136 includes a support beam 138 secured to the main body 132, such as through one or more fasteners 140, such as screws, bolts, or the like. The support beam 138 connects to a downwardly-extending wheel support 142 that supports two axles 144 and 146 that extend between the opposed support beams 138. Rollers 148 and 150 are rotatably secured on the axles 144 and 146, respectively. For example, the rollers 148 and 150 are configured to rotate about the respective axles 144 and 146 in the directions of arcs 152 and 154, respectively.
As shown, the axle 118 may be aligned with and in a central plane 156 of the rotary crimping tool assembly 100. The axles 144 and 146 may be aligned with and in respective roller planes 158 and 160, which are parallel to the central plane 156, but may be on opposite sides thereof. As shown, the first and second roller planes 158 and 160 are parallel to, but offset from, the central plane 156.
While the rotary crimping tool assembly 100 is shown having one crimp wheel 120 and two rollers 148 and 150, more or fewer crimp wheels and rollers may be used. For example, the rollers 148 and 150 may also be crimp wheels. Alternatively, the crimp wheel 120 may be a roller, while the rollers 148 and 150 may be crimp wheels. As another alternative, the bottom frame 102 may support two crimp wheels. In at least one other embodiment, the bottom frame 102 may support the crimp wheel 120, and the adjustable mount 130 may support another crimp wheel above the crimp wheel 120.
The cylinders 160 may be smooth cylindrical rods that are supported between the bottom and upper frames 102 and 104, respectively. The channels formed through the lateral supports 162 may include axial cross sections that conform to axial cross sections of the cylinders 160.
In order to adjust the height of the adjustable mount 130 within the crimping chamber 170, an adjustment member (not shown in
The crimp wheel 200 may be configured to form multiple crimps, such as multiple crimp types, patterns, knurls, depths, and/or the like, at various areas of a structure, such as a contact terminal and/or a portion of a conductive wire assembly. For example, the crimp wheel 200 may include a conductor crimp member 206 and a sealing crimp member 208 positioned between the end cylinder 202. The conductor crimp member 206 may include a smooth, arcuate outer surface 210 having a central equator 212 from which lateral portions 214 recede. In this manner, the conductor crimp member 206 may be partially spherical, donut-shaped, or the like. In at least one other embodiment, the conductor crimp member 206 may be fully spherical. The conductor crimp member 206 may have a height h1 that exceeds a height h2 of the sealing crimp member 208. The sealing crimp member 208 may include one or more seal-indenting features 216, such as peaks, ridges, rims, or the like. In operation, the conductor crimp member 206 is configured to be positioned on a terminal housing of a contact terminal (into which a conductive wire is positioned) to form a crimp that secures the contact terminal to the conductive wire, while the sealing crimp member 208 is configured to be positioned on a portion of an insulated cover that surrounds the conductive wire. A conductive wire assembly and contact terminal are further described in U.S. patent application Ser. No. 14/597,461, filed Jan. 15, 2015, entitled “Systems and Methods for Forming a Conductive Wire Assembly,” which claims priority to U.S. Provisional Application No. 62/061,978, filed Oct. 13, 2014, both of which are hereby incorporated by reference in their entireties.
Because the height h1 exceeds the height h2, the conductor crimp member 206 forms a deeper crimp than the sealing crimp member 208. The deeper crimp formed by the conductor crimp member 206 may be used to securely crimp metal portions of the terminal housing of the contact terminal into metal wire portions of the conductive wire, while the shallower crimp formed by the sealing crimp member 208 may be used to securely crimp to a plastic insulated cover of a conductive wire, for example, in order to form a sealing interface. Alternatively, the crimp wheel 200 may include various other sized and shaped conductive crimp and sealing crimp members. Also, alternatively, the crimp wheel 200 may include only a conductive crimp member, and not a sealing crimp member, or vice versa.
Referring to
Referring to
The threaded shaft 402 is threadably secured within a threaded channel formed through the adjuster retainer 128. Thus, the threaded shaft 402 is configured to threadably move through the threaded channel. As the threaded shaft 402 is rotated in relation to the adjuster retainer 128, the adjustable mount 130 moves up and down in the directions of arrow 134 in response thereto.
The rotary crimping tool assembly 100 may be rotated more than one complete revolution (that is, multiple complete revolutions) about the central axis 530 to form a full and/or uniform radial crimp. Alternatively, the rotary crimping tool assembly 100 may be rotated less than a full 360° about the central axis 530 to form a crimp. After the conductive wire assembly is securely crimped, the handle 408 may be grasped and rotated to move the adjustable mount 130 away from the conductive wire assembly and contact terminal.
Referring to
The rotary crimping tool assemblies described above may be handheld devices that are configured to be quickly and easily transported between locations. For example, the length of a rotary crimping tool assembly may be between 100-200 mm, while the width may be between 50-100 mm, and the height may be between 100-200 mm. Alternatively, the dimensions of the rotary crimping tool assemblies may be greater or lesser than listed.
At 802, the portion of the structure to be crimped is then positioned in proximity to one or more crimp wheels and/or one or more rollers. For example, the rotary crimping tool assembly may include a single crimp wheel below two rollers, and the portion of the structure is positioned therebetween. In another embodiment, the rotary crimping tool assembly may include a first crimp wheel positioned directly below a second crimp wheel (and no rollers). In other embodiment, the rotary crimping tool assembly may include a first crimp wheel positioned below second and third crimped wheels, in which rotation axes of the second and third crimp wheels reside in a common plane that is parallel to a base of the rotary crimping tool assembly.
At 804, the structure to be crimped is secured in a temporary restrained position. For example, one or more vises, clamps, or the like may be used to temporarily restrain the structure in a fixed position.
At 806, the portion of the structure to be crimped is compressed between the one or more crimp wheels and the one or more rollers. For example, an adjustment member may be engaged to compress the portion of the structure between the one or more crimp wheels and the one or more rollers.
At 808, one or more initial crimps may be formed in the portion of the structure. For example, the adjustment member may be engaged to exert a desired force into the portion of the structure that forms the initial crimp.
At 810, the crimp tool assembly is then rotated around the portion of the structure to form one or more full and uniform crimps therein. For example, the crimp tool assembly may be rotated a full 360° about the portion of the structure to form the one or more full and uniform crimps. It is to be understood that a full and uniform crimp may be formed through one or more full 360° rotations. For example, multiple full rotations may be used to form a full and uniform crimp.
As described above, embodiments of the present disclosure provide a rotary crimping tool assembly that may be used to crimp components of a structure together, such as a contact terminal and an insulated wire of a conductive wire assembly. Embodiments of the present disclosure may also be used to splice components together. Also, the components may include grounding jumpers, and various other components other than contact terminals. The rotary crimping tool assembly may be used to crimp conductive portions of an insulated wire to a contact terminal, and crimp sealing members of the insulated wire and the contact terminal together. The rotary crimping tool assembly may be sized and shaped to be operated by hand.
Embodiments of the present disclosure provide systems and methods for crimping components together in a rotary manner. For example, the systems and methods may crimp components together through a single revolution or multiple revolutions. Each crimp wheel may be various sizes and shapes. For example, a portion of the crimp wheel may include a conductor crimp member and a sealing crimp member. The conductor crimp member may have a first height that exceeds a second height of the sealing crimp member. As such, the conductor crimp member may form a deeper crimp, while the sealing crimp member may provide one or more peaks that are shallower than the crimp formed by the conductor crimp member.
While various spatial terms, such as upper, bottom, lower, mid, lateral, horizontal, vertical, and the like may be used to describe embodiments of the present disclosure, it is understood that such terms are merely used with respect to the orientations shown in the drawings. The orientations may be inverted, rotated, or otherwise changed, such that an upper portion is a lower portion, and vice versa, horizontal becomes vertical, and the like.
It is to be understood that the above description is intended to be illustrative, and not restrictive. For example, the above-described embodiments (and/or aspects thereof) may be used in combination with each other. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the disclosure without departing from its scope. Dimensions, types of materials, orientations of the various components, and the number and positions of the various components described herein are intended to define parameters of certain embodiments, and are by no means limiting and are merely exemplary embodiments. Many other embodiments and modifications within the spirit and scope of the claims will be apparent to those of skill in the art upon reviewing the above description. The scope of the disclosure should, therefore, be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. In the appended claims, the terms “including” and “in which” are used as the plain-English equivalents of the respective terms “comprising” and “wherein.” Moreover, in the following claims, the terms “first,” “second,” and “third,” etc. are used merely as labels, and are not intended to impose numerical requirements on their objects. Further, the limitations of the following claims are not written in means—plus-function format and are not intended to be interpreted based on 35 U.S.C. §112(f), unless and until such claim limitations expressly use the phrase “means for” followed by a statement of function void of further structure.
This application relates to and claims priority benefits from U.S. Provisional Patent Application No. 62/062,979 entitled “Rotary Crimping Tool Assembly,” filed Oct. 13, 2014, which is hereby incorporated by reference in its entirety.
Number | Date | Country | |
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62062979 | Oct 2014 | US |