Disclosure of Invention
Technical problem to be solved
Aiming at the defects in the prior art, the invention provides a preparation method of a new energy automobile data connection wire harness, which can effectively solve the problems that the wire harness in the prior art is blocked due to cable expansion and the processing efficiency is low when a terminal is sleeved.
Technical proposal
In order to achieve the above purpose, the invention is realized by the following technical scheme:
the invention provides a preparation method of a new energy automobile data connection wire harness, which comprises the following steps:
step 1: placing the wire harness body on a die and locking and fixing the wire harness body;
step 2: peeling the epidermis outside the wire harness body through a first circular cutter and a second circular cutter on the die, and pushing the peeled epidermis towards one side of the wire harness body;
step 3: sleeving a terminal on the outer end of the stripped wire harness body, and crimping the joint of the terminal and the wire harness body;
The die comprises a fixed panel and a fixed tray arranged on the fixed panel, wherein the fixed tray is in an upward arc shape with a concave surface and is used for supporting the wire harness body, a support capable of linearly moving along the length direction of the wire harness body is further arranged on the fixed panel, the first circular cutter and the second circular cutter are both arranged on the support, each circular cutter is respectively provided with a cutter head which is circumferentially distributed outside the wire harness body, and each cutter head radially moves along the wire harness body and is bound in the outer surface of the wire harness body when the support moves.
Further, the support comprises two fixing rings which are parallel, the fixing rings are coaxially sleeved on the outer side of the wire harness body, and the cutter head is movably arranged on the fixing rings and can radially move along the fixing rings.
Further, each tool bit is elastically and slidably mounted on the fixing ring, and the fixing panel is provided with an extrusion plate which is matched with the tool bit and used for enabling the tool bit to move towards the outer end direction of the wire harness body.
Further, one end of the cutter head, which is far away from the wire harness body, is an arc surface, and the extrusion plate is positioned on a moving path of the arc surface at the upper end of the cutter head.
Further, three circumferentially arranged tool bits are respectively arranged on the two fixing rings, and the central axis of any one tool bit is positioned in the middle of the central axes of two adjacent tool bits on the other fixing ring.
Further, the extrusion plate comprises three first extrusion parts and three second extrusion parts, wherein the three first extrusion parts are circumferentially arranged and are respectively positioned on the moving paths of the three tool bits on the first circular cutter; the three second extrusion parts are circumferentially arranged and are respectively positioned on the moving paths of the three tool bits on the second circular cutter; wherein the first pressing portion and the second pressing portion are simultaneously in contact with the respective cutter heads.
Further, the first extrusion part comprises a straight line section and a turning section, and the distance between the straight line section and the wire harness body is equal to the distance between the second extrusion part and the wire harness body; the turning section is connected with one end of the straight line section, and the distance between the turning section and the wire harness body is larger than the distance between the second extrusion part and the wire harness body.
Further, the distance between the two fixing rings is adjustable.
Further, a placing frame capable of moving towards one side of the wire harness body is further arranged on the fixed panel, and the placing frame is of an arc-shaped structure with a concave surface upwards and used for placing the terminals.
Further, a connecting strip is arranged on the support, a sliding groove is formed in the connecting strip along the axis direction of the wire harness body, and a connecting arm capable of sliding in the sliding groove is arranged on the placing frame.
Advantageous effects
Compared with the known public technology, the technical scheme provided by the invention has the following beneficial effects:
According to the invention, by arranging the two ring cutters, the outer end of the wire harness body placed on the die can be cut into two annular outer rings, the two outer rings can be pushed towards one side of the wire harness body at the same time, and after the outer ring at the outer side leaves the wire harness body, the rest outer rings are bound on the wire harness body to expose the outer side of a cable, so that the cable is prevented from expanding to influence the subsequent terminal sleeving and crimping;
Compared with the traditional binding mode of the binding belt, the method has the advantages that the remaining outer ring is cut off after the terminal is sleeved, so that the processing efficiency of the wire harness is improved effectively.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., azimuth or positional relationship are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description and simplification of operations, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The invention is further described below with reference to examples.
Examples:
The scheme provides a preparation method of a new energy automobile data connection wire harness, which can automatically realize the sleeving connection of terminals on the basis that the outer rubber ring of the wire harness is stripped but the internal cable of the wire harness is not expanded, and the wire harness is not required to be bound and loosened by a binding belt, so that the processing efficiency of enterprises is effectively improved.
Referring to fig. 1-10, the method for preparing a wire harness in the present embodiment mainly includes firstly placing a wire harness body 10 on a mold 1 and locking and fixing the wire harness body, in which the mold 1 includes a fixing panel 13 and a fixing tray 14 disposed on the fixing panel 13, the fixing tray 14 is in an arc shape with a concave surface facing upwards and is used for supporting the wire harness body 10, a closing cover capable of turning towards one side of the wire harness body 10 is disposed on the fixing tray 14, the closing cover can be fixed with the fixing tray 14 by adopting a locking manner such as a latch, when the closing cover turns, an inner end of the closing cover abuts against an outer end face of the wire harness body 10 to limit displacement of the wire harness body 10 on the fixing tray 14, and one end of the wire harness body 10 extends out of the fixing tray 14.
After the wire harness body 10 is fixed, the first circular cutter 11 and the second circular cutter 12 on the die 1 are used for stripping the surface skin on the outer side of the wire harness body 10, the first circular cutter 11 and the second circular cutter 12 in the scheme are all annular and coaxially sleeved on the part of the wire harness body 10 extending out of the fixed tray 14, and when the first circular cutter 11 and the second circular cutter 12 move, the plastic surface skin of the wire harness body 10 can be stripped, and the stripped annular surface skin is pushed along the axial direction of the wire harness body 10.
When the annular surface skin far away from the direction of the fixed tray 14 is completely separated from the wire harness body 10, the annular surface skin close to the fixed tray 14 still stays on the wire harness body 10 and has a certain distance from the side end face of the wire harness body 10, but the cable expansion in the wire harness body is limited due to the existence of the surface skin, and the cable expansion is not limited by adopting a binding band mode.
Finally, the terminal 101 is sleeved on the outer end of the stripped wire harness body 10, and the joint of the terminal 101 and the wire harness body 10 is crimped in a wire pressing clamp mode, so that a terminal sleeving and crimping preparation process of the connecting wire harness is realized.
Specifically, in this case, the fixing panel 13 is further provided with a support 2 that can linearly move along the length direction thereof, and one side of the support 2 is connected with a driving mechanism, where the driving mechanism may be a motor, a telescopic rod, or other structures, and is not limited herein.
The first circular cutter 11 and the second circular cutter 12 are both arranged on the bracket 2, each circular cutter is respectively provided with cutter heads 15 which are circumferentially arranged on the outer side of the wire harness body 10, and when the bracket 2 moves, each cutter head 15 moves radially along the wire harness body 10 and is pricked into the outer surface skin of the wire harness body 10.
The bracket 2 comprises two parallel fixing rings 21, the fixing rings 21 are coaxially sleeved on the outer side of the wire harness body 10, and the cutter head 15 is movably arranged on the fixing rings 21 and can radially move along the fixing rings 21.
The sliding opening is formed in the fixing ring 21, the knife tip part of the knife head 15 penetrates through the inner end face of the fixing ring 21 and faces the outer side of the wire harness body 10, the middle part of the knife head 15 slides in the sliding opening in a guiding manner, the tail part of the knife head 15 is far away from one end of the wire harness body 10 and extends outwards of the fixing ring 21, and when the tail part of the knife head 15 is subjected to downward pressure, the knife tip part moves towards the outer side direction of the wire harness body 10.
The middle part of the tool bit 15 is a movable plate with the diameter larger than the width of the opening of the sliding opening, the movable plate is slidably arranged inside the sliding opening through a guide sliding rod arranged inside the sliding opening, a spring is sleeved outside the guide sliding rod and is abutted against one end of the movable plate, which faces the outer end face of the wire harness body 10, so that when the tail part of the tool bit 15 is subjected to downward pressure, the spring is compressed, a certain elastic potential energy is formed by the spring, when the downward pressure disappears, the whole tool bit 15 is restored to the original position under the action of the elasticity of the spring, and the tool tip part is separated from the outer surface of the wire harness body 10.
The application of the external force is performed by means of the pressing plate 131 provided on the fixing panel 13, and the pressing plate 131 is engaged with the cutter head 15 and serves to move the cutter head 15 toward the outer end of the wire harness body 10.
The afterbody of tool bit 15 is the cambered surface towards the one side terminal surface of stripper plate 131, and stripper plate 131 is located the removal route of tool bit 15 upper end cambered surface to along with the removal of tool bit 15, the cambered surface at tool bit 15 afterbody can contact with stripper plate 131, under stripper plate 131's effect, drives tool bit 15 radial displacement and then cuts the outside epidermis of pencil body 10, after tool bit 15 pricks the outside epidermis of pencil body 10, along with the continued displacement of tool bit 15, pushes away the epidermis of cutting off and restraints body 10 and along with tool bit 15 synchronous movement.
It is worth mentioning that some dander will remain when breaking the outer surface skin of the cable in the prior art, static electricity generated by friction will adsorb the dander, which affects the smoothness of the sleeving of the terminal, and the external skin pushing mode of the scheme will effectively wipe the dander, so that the terminal can be sleeved more smoothly.
It should be noted that in this case, the two fixing rings 21 cut synchronously, each fixing ring 21 is provided with three circumferentially arranged cutter heads 15, and the central axis of any one cutter head 15 is located in the middle of the central axes of two adjacent cutter heads 15 on the other fixing ring 21.
The extrusion plate 131 in the present case comprises a first extrusion part 1311 and a second extrusion part 1312, wherein the first extrusion part 1311 is provided with three first extrusion parts 1311, and the three first extrusion parts 1311 are circumferentially arranged and respectively positioned on the moving paths of the three tool bits 15 on the first circular cutter 11; the second extrusion parts 1312 are provided with three, and the three second extrusion parts 1312 are circumferentially arranged and respectively positioned on the moving paths of the three cutter heads 15 on the second circular cutter 12; the first squeeze portion 1311 and the second squeeze portion 1312 are simultaneously in contact with the respective bit 15.
The first pressing portion 1311 is engaged with the first ring cutter 11 near the fixed tray 14, so that the entire length is longer than the second pressing portion 1312, and the second ring cutter 12 pushes the cut annular skin against the wire harness body 10 during the movement of the two ring cutters, and the annular skin pushed by the first ring cutter 11 stays near the side end of the wire harness body 10 to bind the wire harness.
In this case, in order to ensure that the second circular cutter 12 can completely push the pushed skin completely off the wire harness body 10, and the skin pushed by the first circular cutter 11 does not completely cover the side end face of the wire harness body 10 (if the skin is too close to the side end face of the wire harness body 10 or covers the side end face of the wire harness body 10 to cause inconvenient nesting of the subsequent terminals), during the movement of the circular cutter, the first circular cutter 11 stops pushing the skin, the first pressing portion 1311 includes a straight line segment 1313 and a turning segment 1314, and the distance between the straight line segment 1313 and the wire harness body 10 is equal to the distance between the second pressing portion 1312 and the wire harness body 10; the turning segment 1314 is connected at one end of the straight line segment 1313, and the distance between the turning segment 1314 and the wire harness body 10 is greater than the distance between the second extrusion portion 1312 and the wire harness body 10, when the tail of the cutter head 15 on the first circular cutter 11 moves to the turning segment 1314, the turning segment 1314 does not contact the tail of the cutter head 15, and the cutter head 15 at this time can be separated from the wire harness body 10, so that the second surface is not too close to or beyond the side end surface of the wire harness body 10 even if the two circular cutters continue to move to complete the pushing-away process of the first surface.
In this case, in order to adjust the distance between the two fixing rings 21 according to the toughness of the outer skin of different strands, the distance between the two fixing rings 21 can be properly adjusted to be smaller when the outer skin is softer.
Specifically, the second circular cutter 12 is in this case screwed on the first circular cutter 11, so that the distance between the two circular cutters can be adjusted according to the actual requirement.
The diameter of the terminal sleeve outside the wire harness body 10 is slightly larger than that of the wire harness body 10 (after the surface is peeled off), so that the terminal sleeve can be directly sleeved at the outer end of a wire harness body 10, in the scheme, a placing frame 132 capable of moving towards one side of the wire harness body 10 is further arranged on the fixing panel 13, the placing frame 132 is of an arc-shaped structure with a concave surface upwards and is used for placing the terminal 101, and when the terminal 101 is placed in the placing frame 132, the terminal 101 is close to the wire harness body 10 by moving the placing frame 132 until the opening end of the terminal 101 is sleeved on the outer end face of the wire harness body 10.
In this case, the movement of the placing frame 132 is synchronous with the movement of the circular cutter, two sides of the bracket 2 are respectively provided with a connecting strip 22, a chute is formed in the connecting strip 22 along the axis direction of the wire harness body 10, two sides of the placing frame 132 are respectively provided with a connecting arm 133 capable of sliding in the chute, each connecting arm 133 is provided with a sliding button vertically penetrating through the chute, when the circular cutter resets, the connecting strip 22 can pull the connecting arm 133 to move towards one side direction of the wire harness body 10 until the terminal 101 on the placing frame 132 is sleeved on the part of the wire harness body 10 exposing the wire cable and pushes the surface back at the same time, and finally, the surface can be broken manually or by adopting additional cutting equipment to realize complete insertion of the terminal 101.
It should be noted that the placing frame 132 in the present embodiment is elastically installed on the fixed panel 13, and the placing frame 132 is provided with a protrusion for the terminal 101 to be sleeved in, so as to avoid displacement when the terminal 101 is sleeved in.
Finally, the cable can be taken down and the connection part of the terminal and the wire harness body is crimped by the crimping equipment, the crimping equipment can adopt commonly used known equipment such as crimping pliers, and the crimping equipment is not specifically arranged in the drawings, and is not described in detail.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; these modifications or substitutions do not depart from the essence of the corresponding technical solutions from the protection scope of the technical solutions of the embodiments of the present invention.