Four-core wire crimping device

Abstract

The invention relates to the technical field of wire harness processing, in particular to a four-core wire crimping device, which comprises a peeling mechanism, and is characterized in that the peeling mechanism is provided with a cutter assembly used for cutting an outer insulating skin and a peeling driving part connected with the cutter assembly and used for moving the cut outer raw skin towards the direction far away from a wire harness; the crimping mechanism and the stripping mechanism are arranged side by side, and the crimping mechanism is provided with a crimping seat used for crimping the terminal; the bending mechanism is arranged opposite to the stripping mechanism or the crimping mechanism and comprises a clamping assembly used for clamping the core wire and a bending assembly used for clamping the wire harness body and bending the wire harness body relative to the core wire; the transverse moving mechanism is arranged in parallel with the side-by-side direction of the peeling mechanism and the crimping mechanism, is connected with the bending mechanism and is used for driving the bending mechanism to move between the peeling mechanism and the crimping mechanism; wherein the clamping assembly is arranged towards the cutter assembly in an initial state, and the cutter assembly and the crimping seat are collinear. Through the above arrangement, the four-core wire crimping efficiency and precision are improved.

Description

Technical Field

[0001] The invention relates to the technical field of wire harness processing, and in particular to a four-core wire crimping device. Background Art

[0002] The four-core wire harness is generally arranged in a 2×2 pattern within the insulation layer. However, during crimping, since the crimping needs to be performed in a direction perpendicular to the wire core, the upper core wire will block the lower core wire. Therefore, it is often necessary to manually pre-fold the wire core and then crimp it. This method has high labor costs and low production efficiency.

[0003] In the prior art, a Chinese utility model patent with announcement number CN217215482U disclosed on August 16, 2022 a four-core wire upper core wire flipping device, which clamps the wire harness with a secondary clamp, and then clamps the two wire cores with a flipping clamp, and flips 90 degrees under external force to achieve the folding of the upper core wire, thereby improving the uniformity of the folding angle, so as to improve the subsequent crimping accuracy.

[0004] However, the inventors found that for a four-core wire with a thicker core wire diameter and a shorter distance between the core wire and the end, after the upper core wire is folded, the upper core wire will rebound at a certain angle, thereby affecting the subsequent stripping and crimping operations, resulting in a low yield rate for crimping the four-core wire. Summary of the invention

[0005] In view of at least one of the above technical problems, the present invention provides a four-core wire crimping device, which adopts structural improvement to improve the efficiency of the four-core wire crimping process.

[0006] According to a first aspect of the present invention, there is provided a four-core wire crimping device, comprising: A stripping mechanism, wherein the stripping mechanism has a cutter assembly for cutting the outer insulating skin and a stripping drive connected to the cutter assembly for moving the cut outer raw skin in a direction away from the wire harness; A crimping mechanism, arranged side by side with the stripping mechanism, the crimping mechanism having a crimping seat for crimping the terminal; A bending mechanism, arranged opposite to the stripping mechanism or the crimping mechanism, comprising a clamping assembly for clamping the core wire and a bending assembly for clamping the wire harness body and bending the wire harness body relative to the core wire; A transverse movement mechanism is arranged in parallel with the direction in which the peeling mechanism and the crimping mechanism are arranged side by side, and is connected to the bending mechanism, and is used to drive the bending mechanism to move between the peeling mechanism and the crimping mechanism; Wherein, the clamping assembly is arranged toward the cutter assembly in an initial state, and the cutter assembly is colinear with the crimping seat.

[0007] In some embodiments of the present invention, the cutter assembly includes two peeling knives arranged opposite to each other and a cutting drive member for driving the two peeling knives to move closer to or away from each other; The stripping mechanism also has a trigger assembly at the center of the stripping knife, and the trigger assembly is used to trigger the action of the bending assembly.

[0008] In some embodiments of the present invention, the trigger assembly includes a trigger probe and a longitudinal drive member connected to the trigger probe, wherein the longitudinal drive member is located between the two stripping knives in an initial position, and the longitudinal drive member is configured to drive the trigger member to move in a direction away from the core wire after the end of the core wire contacts the trigger member.

[0009] In some embodiments of the present invention, the clamping assembly includes a support arm having two placement slots, the placement slots being arranged opposite to the cutting position of the skinning knife; The clamping assembly also includes a holding arm arranged parallel to the support arm and a holding drive member driving the holding arm to cover or leave the two placement slots. The holding drive member is configured to drive the holding arm to move laterally to cover the two placement slots after the core wire triggers the trigger member.

[0010] In some embodiments of the present invention, the clamping assembly further comprises a stopper rod arranged parallel to the pressing arm, and the stopper rod is used to block the bent wire core.

[0011] In some embodiments of the present invention, the bending assembly includes a swing table for clamping the cable, a wire clamping seat arranged on the swing table, and a bending driving member rotatably connected to the swing table; The swing platform is rotatably connected to one end close to the gear lever, and the bending drive member is connected to one end of the swing platform away from the gear lever.

[0012] In some embodiments of the present invention, the wire clamping seat can be relatively slidably arranged in a direction approaching or moving away from the trigger assembly. The wire clamping seat adopts an elastic clamping structure, and is connected to an elastic member that applies force in a direction approaching the trigger assembly.

[0013] In some embodiments of the present invention, the swing platform further comprises a wire harness clamp for clamping the wire harness body, and the wire harness clamp is configured to clamp the wire harness body when the core wire triggers the trigger assembly to act.

[0014] In some embodiments of the present invention, the bending drive is configured to drive the swing table to swing to a set angle after the wire harness clamp is actuated, so as to keep the wire core stationary so that the wire harness body is bent relative to the wire core.

[0015] In some embodiments of the present invention, a protective cover is further included, and two safety start buttons are provided on the outer side of the protective cover. When the two safety start buttons are pressed simultaneously, the stripping mechanism is actuated, and the transverse movement mechanism is configured to move the wire core to the crimping seat for crimping after the stripping operation is completed.

[0016] The beneficial effects of the present invention are as follows: the present invention moves the bending mechanism between the stripping mechanism and the crimping mechanism through the transverse movement mechanism, so that the core wire of the wire harness is fixed first and then the wire harness body is bent relative to the core wire, which can ensure that the core wire is in a horizontal state and the folded core wire maintains a large angle open state, and through the side-by-side arrangement of the stripping mechanism and the crimping mechanism, the integrated operation of bending, stripping and crimping the wire core can be realized, which improves the reliability and efficiency of four-core wire crimping compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 Schematic diagram of the structure of the four-core wire crimping device in the embodiment of the present invention (initial state); Figure 2 Schematic diagram of the structure of the four-core wire crimping device in the embodiment of the present invention (crimping completed state); Figure 3 It is a structural schematic diagram of a bending mechanism in an embodiment of the present invention; Figure 4 In the embodiment of the present invention Figure 3 A local enlarged diagram of the structure at point A; Figure 5 A schematic structural diagram of a bending mechanism from another perspective in an embodiment of the present invention; Figure 6 It is a schematic diagram of the connection structure between the clamping assembly and the swing table in an embodiment of the present invention; Figure 7 It is a structural schematic diagram of a peeling mechanism in an embodiment of the present invention; Figure 8 It is a schematic structural diagram of the relative position relationship between the peeling mechanism and the bending mechanism in an embodiment of the present invention; Fig. 9 Schematic diagram of the structure of the protective cover in an embodiment of the present invention. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] like Figures 1 to 9 The four-core wire crimping device shown in the figure comprises: a stripping mechanism 1, a crimping mechanism 2, a bending mechanism 3 and a lateral movement mechanism 4; wherein, Figure 7 As shown in the figure, the stripping mechanism 1 has a cutter assembly 11 for cutting the outer insulation skin and a stripping drive 12 connected to the cutter assembly 11 for moving the cut outer original skin in a direction away from the wire harness; in the embodiment of the present invention, for the cutting and stripping of the outer insulation skin on the core wire, the cutter assembly 11 is used to first partially or completely cut the outer insulation skin on the core wire, and then the stripping drive 12 drives the cutter assembly 11 to move, so that the cut outer insulation skin is separated from the core wire to realize the stripping operation of the core wire; The crimping mechanism 2 is arranged side by side with the stripping mechanism 1, and the crimping mechanism 2 has a crimping seat 21 for crimping the terminal; the crimping mechanism 2 is a prior art, which realizes the crimping operation of the terminal of the core wire stripped of the outer insulation skin in sequence by moving the terminal strip and crimping the crimping head toward the crimping seat 21; The bending mechanism 3 is arranged opposite to the stripping mechanism 1 or the crimping mechanism 2, and includes a clamping assembly 31 for clamping the core wire and a bending assembly 32 for clamping the wire harness body and bending the wire harness body relative to the core wire; in an embodiment of the present invention, the clamping assembly 31 is used to clamp the core wire so that the core wire is always in a horizontal state, and the bending assembly 32 is used to clamp the wire harness body and then bend the wire harness body relative to the core wire. The structural setting in which the core wire remains stationary and the wire harness body is bent relatively is beneficial to the subsequent processing of the wire core and ensures the continuity of the processing.

[0023] The transverse movement mechanism 4 is arranged in parallel with the peeling mechanism 1 and the crimping mechanism 2, and is connected to the bending mechanism 3, so as to drive the bending mechanism 3 to move between the peeling mechanism 1 and the crimping mechanism 2; it should be pointed out here that in the embodiments of the present invention, the transverse movement mechanism 4 has a variety of structural forms, for example, it can be a conventional one that realizes the movement of the bending mechanism 3 through the cooperation of a motor lead screw and a nut seat, or it can also adopt other conventional driving structural forms in the field such as synchronous wheels, synchronous belts, sprocket chains, etc.

[0024] In the embodiment of the present invention, the clamping assembly 31 is arranged toward the cutter assembly 11 in the initial state, and the cutter assembly 11 is in line with the crimping seat 21. Through the structure that the cutter assembly 11 and the crimping seat 21 are in line, it is possible to move the core wire directly to the crimping seat 21 for crimping after the core wire is stripped. Of course, it should be pointed out here that in the embodiment of the present invention, for two wire cores in the same row, one core wire is crimped first, and then moved to crimp the other core wire.

[0025] In the above embodiment, the bending mechanism 3 is moved between the stripping mechanism 1 and the crimping mechanism 2 by the transverse movement mechanism 4, so that the core wire of the wire harness is fixed first and then the wire harness body is bent relative to the core wire, which can ensure that the core wire is in a horizontal state and the folded core wire maintains a large angle open state, and through the side-by-side arrangement of the stripping mechanism 1 and the crimping mechanism 2, the integrated operation of bending, stripping and crimping the wire core can be realized, compared with the prior art, the reliability and efficiency of four-core wire crimping are improved.

[0026] On the basis of the above embodiments, in order to improve the efficiency of crimping, as Figure 7 As shown in the figure, the cutter assembly 11 includes two peeling knives 11a arranged opposite to each other and a cutting drive member for driving the two peeling knives 11a to move closer to or away from each other; the cutting drive member here can be driven by a motor screw structure, or the two peeling knives 11a can be driven by simultaneously engaging the racks on both sides of the gear; please continue to refer to Figure 7 In the embodiment of the present invention, the stripping mechanism 1 further has a trigger component at the center of the stripping knife 11a, and the trigger component is used to trigger the action of the bending component 32. Of course, it should be pointed out here that the trigger component has a variety of structural forms, for example, it can be implemented by a laser sensor, or it can be implemented by contact triggering and the like. In the embodiment of the present invention, by setting a trigger member between the two stripping knives 11a, the accuracy and efficiency of wire core processing can be improved.

[0027] In an embodiment of the present invention, an exemplary structure of a trigger component is as follows: Figure 7As shown in , the trigger assembly includes a trigger probe and a longitudinal drive member 11b connected to the trigger probe. The longitudinal drive member 11b is located in the middle of the two stripping knives 11a in the initial position. The longitudinal drive member 11b is configured to drive the trigger member to move away from the core wire after the end of the core wire contacts the trigger member. Through such a setting, not only the efficiency of core wire stripping can be improved, but also the length of core wire stripping can be adjusted according to needs, and only the distance between the trigger member and the stripping knife 11a needs to be set.

[0028] The specific exemplary structure of the bending assembly 32 is as follows Figures 3 to 6 As shown in, in an embodiment of the present invention, the clamping assembly 31 includes a support arm 31a, and the support arm 31a has two placement slots, which are arranged relative to the cutting position of the peeling knife 11a; the arrangement of the two placement slots can improve the accuracy of core wire placement; the clamping assembly 31 also includes a pressing arm 31b arranged parallel to the support arm 31a and a pressing drive 31c driving the pressing arm 31b to cover or leave the two placement slots, and the pressing drive 31c is configured to drive the pressing arm 31b to move laterally to cover the two placement slots after the core wire triggers the trigger. For details, please refer to Figure 3 and Figure 4 In the initial state, the outer end of the pressing arm 31b is arranged on the inner side of the two placement slots. After the core wire is placed in the placement slot, that is, after the end of the core wire contacts the trigger member, the pressing arm 31b moves horizontally toward the placement slot to achieve pressing the two core wires at the top. In addition, in an embodiment of the present invention, the clamping assembly 31 also includes a shift lever arranged parallel to the pressing arm 31b, and the shift lever is used to block the bent wire core. When performing the operation, workers are required to manually fold the two upper wire cores first. After the core wire is placed on the slot, the two manually folded wire cores are blocked by the shift lever. Figure 4 As shown in the figure, the blocking of the gear lever can avoid the rebound of the wire core after the upper part is folded, and the influence on the subsequent stripping and crimping can be avoided. Moreover, through this structural setting, when the bending mechanism 3 bends the wire harness body, the angle of the upper and lower rows of core wires can be further increased, which is more conducive to subsequent processing.

[0029] The specific structure of the bending assembly 32 is as follows Figure 5 and Figure 6As shown in the figure, the bending assembly 32 includes a swing table 32a for clamping the cable, a wire clamping seat 32b arranged on the swing table 32a, and a bending driving member 32c rotatably connected to the swing table 32a; the swing table 32a is rotatably connected at one end close to the gear lever, and the bending driving member 32c is connected to the end of the swing table 32a away from the gear lever. By rotatably connecting the end of the swing table 32a close to the gear lever, when the swing table 32a rotates, the wire harness body follows the swing table 32a to change its angle, and because the core wire is pressed by the pressing arm 31b, the wire core can remain in a horizontal state.

[0030] In the embodiment of the present invention, the swing table 32a is in a horizontal state in the initial state, in order to facilitate the placement of the wiring harness, such as Figure 5 As shown in , the clamp seat 32b can be relatively slidably arranged in the direction of approaching or moving away from the trigger component. The clamp seat 32b adopts an elastic clamping structure, and an elastic member that applies force in the direction of approaching the trigger component is connected to the clamp seat 32b. The sliding setting here can be achieved by the structure of the slide rail and the slider. The elastic member can be a tension spring. Through the setting of this structural form, when placing the wire harness, the clamp seat can be pulled close to the user side first, and then the wire harness can be placed in the clamp seat 32b. The clamp seat 32b can be a clamping claw held by two compression springs. When the wire harness is placed between the two clamping claws, the wire harness is clamped and fixed under the action of the spring, and then the wire harness is driven to move in the direction of the trigger member under the action of the tension spring.

[0031] In order to further ensure the reliability when the wire harness body is bent, in an embodiment of the present invention, Figure 5 As shown in , the swing table 32a also has a harness clamp 32d for clamping the harness body, and the harness clamp 32d is configured to clamp the harness body when the core wire triggers the trigger assembly to operate. The harness clamp 32d here can be a clamp driven by a cylinder clamp. After the end of the core wire contacts the trigger, the cylinder clamp operates to clamp the harness body in one step to avoid displacement of the harness body during the bending process.

[0032] In the embodiment of the present invention, in order to further ensure the reliability of bending, the bending driving member 32c is configured to drive the swinging table 32a to swing to a set angle after the harness clamping member 32d is actuated, so as to keep the wire core stationary so that the harness body is bent relative to the wire core. That is, after the pressing arm 31b presses and fixes the upper part of the core wire after the pressing driving member 31c is actuated, and then after the harness clamping member 32d clamps and fixes the harness body, the angle of the swinging table 32a is changed, so that the angle of the harness body relative to the clamped core wire changes.

[0033] In addition, in the embodiment of the present invention, in order to improve the safety of the device, a protective cover 5 is further included, and two safety start buttons 51 are provided on the outer side of the protective cover 5. When the two safety start buttons 51 are pressed simultaneously, the stripping mechanism 1 is activated, and the traverse mechanism 4 is configured to move the wire core to the crimping seat 21 for crimping after the stripping operation is completed. In this way, after the user manually places the wire harness, both hands leave the bending mechanism 3, and then the two safety start buttons 51 are pressed simultaneously, the stripping drive member 12 starts to operate, and the subsequent crimping operation is performed.

[0034] In the embodiment of the present invention, the outer diameter of the wire harness body of the processed four-core wire is 22mm, and the diameter of the wire core is about 6-8mm. When performing the operation, the two core wires in the upper row are manually folded first, and then placed on the wire clamping seat 32b to clamp the wire harness body. Then the wire clamping seat 32b moves toward the trigger assembly under the action of the tension spring. When placed, the two wire cores on the lower side have been placed in the placement groove of the support arm 31a. When the end of the core wire triggers the trigger assembly, the pressing arm 31b moves to press the wire core, and then the wire harness clamp 32d clamps and fixes the wire harness body, and then the bending drive 32c is actuated to bend the wire harness body relative to the core wire, and then the user simultaneously The safety start button 51 on the outside of the protective cover 5 is pressed, and the stripping mechanism 1 is activated to strip the outer insulation of the two core wires. Then, the bending mechanism 3 is driven by the transverse movement mechanism 4 to move from the stripping mechanism 1 to the crimping seat 21 of the crimping mechanism 2, and the two core wires are crimped in turn. When the crimping operation is completed, the user takes out the wire harness that has completed the crimping operation of the lower row of core wires, rotates it 180 degrees, so that the two crimped core wires face upward, and then flattens the two core wires that were originally manually folded and continues to place them on the bending mechanism 3 for the next round of bending, stripping and crimping operations. The wire harness body is at a certain angle relative to the crimped core wires, so the terminal can be directly blocked by the gear lever, as shown in the following figure. Figure 4 As shown in , through this structural setting, the crimping operation of the four core wires of the entire wire harness only requires manual bending, flipping and flattening once, which improves efficiency and precision compared with the folding core wires in the prior art.

[0035] Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A four-core wire crimping device, characterized in that: include: A stripping mechanism, wherein the stripping mechanism has a cutter assembly for cutting the outer insulating skin and a stripping drive connected to the cutter assembly for moving the cut outer raw skin in a direction away from the wire harness; A crimping mechanism, arranged side by side with the stripping mechanism, the crimping mechanism having a crimping seat for crimping the terminal; A bending mechanism, arranged opposite to the stripping mechanism or the crimping mechanism, comprising a clamping assembly for clamping the core wire and a bending assembly for clamping the wire harness body and bending the wire harness body relative to the core wire; A transverse movement mechanism is arranged in parallel with the direction in which the peeling mechanism and the crimping mechanism are arranged side by side, and is connected to the bending mechanism, and is used to drive the bending mechanism to move between the peeling mechanism and the crimping mechanism; Wherein, the clamping assembly is arranged toward the cutter assembly in an initial state, and the cutter assembly is colinear with the crimping seat.

2. The four-core wire crimping device according to claim 1, characterized in that: The cutter assembly comprises two peeling knives arranged opposite to each other and a cutting drive member for driving the two peeling knives to move closer to or away from each other; The stripping mechanism also has a trigger assembly at the center of the stripping knife, and the trigger assembly is used to trigger the action of the bending assembly.

3. The four-core wire crimping device according to claim 2, characterized in that: The trigger assembly includes a trigger probe and a longitudinal drive member connected to the trigger probe. The longitudinal drive member is located between the two stripping knives in an initial position. The longitudinal drive member is configured to drive the trigger member to move in a direction away from the core wire after the end of the core wire contacts the trigger member.

4. The four-core wire crimping device according to claim 2, characterized in that: The clamping assembly includes a support arm, and the support arm has two placement grooves, and the placement grooves are arranged opposite to the cutting position of the skinning knife; The clamping assembly also includes a holding arm arranged parallel to the support arm and a holding drive member driving the holding arm to cover or leave the two placement slots. The holding drive member is configured to drive the holding arm to move laterally to cover the two placement slots after the core wire triggers the trigger member.

5. The four-core wire crimping device according to claim 4, characterized in that: The clamping assembly also includes a stopper rod arranged in parallel with the pressing arm, and the stopper rod is used to block the bent wire core.

6. The four-core wire crimping device according to claim 5, characterized in that: The bending assembly comprises a swing table for clamping the cable, a wire clamping seat arranged on the swing table, and a bending driving member rotatably connected to the swing table; The swing platform is rotatably connected to one end close to the gear lever, and the bending drive member is connected to one end of the swing platform away from the gear lever.

7. The four-core wire crimping device according to claim 6, characterized in that: The clamping seat can be relatively slidably arranged in a direction approaching or moving away from the trigger assembly. The clamping seat adopts an elastic clamping structure, and an elastic member that applies force in a direction approaching the trigger assembly is connected to the clamping seat.

8. The four-core wire crimping device according to claim 6, characterized in that: The swing platform also has a wire harness clamp for clamping the wire harness body, and the wire harness clamp is configured to clamp the wire harness body when the core wire triggers the trigger assembly to act.

9. The four-core wire crimping device according to claim 8, characterized in that: The bending driving member is configured to drive the swing platform to swing to a set angle after the wire harness clamping member is actuated, so as to keep the wire core stationary so that the wire harness body is bent relative to the wire core.

10. The four-core wire crimping device according to claim 1, characterized in that: It also includes a protective cover, and two safety start buttons are provided on the outside of the protective cover. When the two safety start buttons are pressed simultaneously, the stripping mechanism is activated, and the transverse movement mechanism is configured to move the wire core to the crimping seat for crimping after the stripping operation is completed.

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