Multi-wire-diameter guide crimping device

Abstract

The utility model discloses a multi-wire-diameter guide crimping device. The device specifically comprises a guide clamping hand, a crimping device, a driving mechanism and a controller. And a guide clamping hand is arranged at the opening of the crimping device. When the guide clamping hand is closed, a guide-in pipe is formed. And the driving mechanism is used for driving the guide clamping hand and the crimping device to move in the axial direction of the guide-in pipe. And the controller is used for controlling the guide clamping hand to axially translate in the ingress pipe after the guide clamping hand is closed, and is also used for controlling the crimping device to generate a force for compressing the terminal deformation after the translation is stopped. According to the invention, only one type of guide clamp is needed, and the guide clamp can be suitable for various types of wires.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of installation, in particular to a multi-wire diameter guiding and crimping device. BACKGROUND

[0002] When installing a wire with an insulating sheath into a tube terminal, the insulating sheath of a certain length at the front end of the wire needs to be stripped off to leave the wire core, the wire core is sent into the insulating sheath at the rear end of the terminal through a guide, and then into the metal part at the front end of the terminal, and part of the insulating sheath can also enter the insulating sheath. The metal part is deformed by pressure crimping. Different models of wires require different models of guides to ensure that the insulating sheath can enter the insulating sheath of the terminal through the guide tube. In production, different models of guides need to be prepared, and installation and disassembly are time-consuming and laborious. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present application provides a multi-wire diameter guiding and crimping device, which solves the problem of replacing different models of guides in the prior art and improves production efficiency.

[0004] The embodiment of the present application provides a multi-wire diameter guiding and crimping device, which includes a guiding and clamping hand, a crimping device, a driving mechanism and a controller. The guiding and clamping hand is arranged at the opening of the crimping device and combined with the crimping device to form a whole assembly. The two arms of the guiding and clamping hand are provided with recesses on the opposite closing surfaces, and the recesses form a guide pipe when closed. The guide pipe includes a horn-shaped structure, and the opening at one end of the horn-shaped structure away from the crimping device is larger than the opening at the other end. The driving mechanism is used to drive the assembly to move axially in the guide pipe. The controller connected to the driving mechanism is used to control the assembly to translate axially in the guide pipe and is also used to control the crimping device to generate a force for deforming the terminal.

[0005] Further, the multi-wire diameter guiding and crimping device further includes a crimping device driver connected to the controller, which provides a clamping force for the crimping device.

[0006] Further, the crimping device driver further includes a first driver and a second driver. The first driver is used to provide a first clamping force for the crimping device during the translation. The second driver is used to provide a second clamping force for the crimping device after the translation stops. The second clamping force is used to deform the terminal and is greater than the first clamping force.

[0007] In one of the embodiments, the output end of the first driver contacts a first force receiving end of the crimping device to apply the first clamping force to the crimping device.

[0008] In one of the embodiments, the second driver is arranged on the side of the track of the driving mechanism for moving the assembly, and the output end of the second driver contacts a second force receiving end of the crimping device at a set working position to apply the second clamping force to the crimping device.

[0009] In one embodiment, the crimper comprises a plurality of crimping heads, which are synchronously extended and retracted around a center point under the drive of a crimper driver, to achieve variable-diameter clamping.

[0010] In one embodiment, the multi-wire-diameter guiding and crimping device further comprises a guiding clamp hand driver connected to the controller, which closes the guiding clamp hand in the first stage of translation and opens the guiding clamp hand in the second stage of translation.

[0011] Preferably, the lead-in tube comprises a horn-shaped structure, which has an opening larger than the maximum processable outer diameter of the wire insulation at one end away from the crimper, and has an opening larger than the maximum processable core diameter of the wire at the other end.

[0012] The above at least one technical solution adopted by the embodiments of the present application can achieve the following beneficial effects:

[0013] The present application only needs one type of guiding clamp hand, which can be applied to multiple types of wires; the crimper applies pressure through a driver with different pressures to complete the clamping and crimping processes; the opening diameter of the crimper when opened can be variable to adapt to the size of the terminal structure, avoiding deviation in terminal alignment. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings, which are included to provide a further understanding of the present application, constitute a part of the present application and illustrate the illustrative embodiments of the present application and its description, which are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0015] Figure 1 A schematic diagram of a terminal structure suitable for the device of the present application;

[0016] Figure 2 A structural diagram of a multi-wire-diameter guiding and crimping device provided by the embodiments of the present application;

[0017] Figure 3 A structure diagram of a guiding clamp hand provided by the embodiments of the present application;

[0018] Figure 4 A structure diagram of a crimper provided by the embodiments of the present application;

[0019] Figure 5 A conversion structure diagram of a crimper driver provided by the embodiments of the present application. DETAILED DESCRIPTION

[0020] In order to make the purposes, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described below in connection with the embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0021] The technical solutions provided by the embodiments of the present application will be described in detail below in connection with the drawings.

[0022] Figure 1 A schematic diagram of a terminal structure suitable for the device of the present application.

[0023] The terminal comprises an insulating sheath and a metal part, which are connected as a tube. During crimping, the end of the wire extends into the insulating sheath, and the wire and the metal part are crimped together.

[0024] The wire of the present application comprises an insulating sheath and a core. When the device of the present application is applied, the end of the wire introduced into the terminal is stripped of part of the insulating sheath to form a sheath end and a core end of the wire. The sheath end is the end of the insulating sheath, the core end is the end of the bare core, and the bare part of the core is between the two.

[0025] Figure 2 A structure diagram of a multi-wire diameter guiding crimping device provided by an embodiment of the present application, comprising: a guiding clamp hand 1, a crimping device 2, a driving mechanism 5 and a controller 6. A guiding clamp hand combined as a whole assembly with the crimping device is arranged at the opening of the crimping device. The guiding clamp hand is provided with a groove on the opposite closing surface of the two arms, and forms a lead-in tube when closed. The crimping device is used to hold the terminal facing the lead-in tube.

[0026] The dashed line in the figure represents a mechanical driving connection relationship. The driving mechanism is used to drive the whole assembly of the guiding clamp hand and the crimping device to move axially along the lead-in tube. Correspondingly, the end core of the wire approaches the terminal along the lead-in tube until it enters the insulating sheath, and continues to move, and the core enters the metal part along the insulating sheath.

[0027] For example, the driving mechanism is a gas cylinder, which drives the crimping device and the guiding clamp hand to move towards or away from the end of the wire.

[0028] For another example, the driving mechanism comprises a stepping motor, which drives a linear lead screw, and the linear lead screw drives the crimping device and the guiding clamp hand to move towards or away from the end of the wire.

[0029] The solid line connection in the figure represents a control signal connection relationship.

[0030] The controller is configured to control the assembly to translate axially along the guide tube; it will be appreciated by those skilled in the art that the translation described herein is in the direction of the wire for the purposes of introducing the wire and crimping the terminal.

[0031] Preferably, the controller controls the assembly to translate axially along the guide tube in a first stage after the guide jaws have closed, and to translate axially along the guide tube in a second stage after the guide jaws have opened.

[0032] The controller is further configured to control the crimper to generate the force to deform the terminal.

[0033] The controller is configured to control the crimper to generate the force to deform the terminal after the guide jaws have stopped translating.

[0034] As the guide jaws open in the second stage, the wire section without the insulation is no longer limited by the narrow end of the guide tube, and thus the wire core (core end) of the wire section without the insulation can enter the insulation sheath, and the subsequent wire section with the insulation can also enter the insulation sheath. Therefore, the guide jaws do not need to be specially configured for each type of wire.

[0035] The controller is configured to control the distance of the movement of the drive mechanism according to the length of the exposed wire core. For example, the controller determines the scale of the first stage translation and the second stage translation by receiving a GUI instruction. The distance of the first stage translation and the second stage translation is set according to the instruction, and further determines the working process of the drive mechanism.

[0036] For example, the first stage translation starts from the approach of the guide jaws and the crimper to the wire, and ends when the core end enters the terminal insulation sheath through the guide tube of the guide jaws. The first stage translation can end when the exposed wire core has completely passed through the guide jaws, or can end at any time from the moment when the core end enters the terminal insulation sheath to the moment when the exposed wire core has completely passed through the guide jaws. The second stage translation ends when at least part of the exposed wire core enters the metal part of the terminal.

[0037] Further, as shown in Figure 2 The device further comprises a guide jaw drive 3 controlled by the controller to provide the guide jaws with the force to close and open. In one embodiment, the guide jaws are closed in the first stage translation and are opened in the second stage translation.

[0038] Further, the device further comprises a crimper drive 4 controlled by the controller to provide the crimper with the force to close.

[0039] The drive of the present application can comprise a pneumatic cylinder or an electric motor, and is not limited in particular.

[0040] Figure 3 The guiding clamp hand structure diagram provided by the embodiment of the present application is shown in the figure. Figure 3 As shown, the guiding clamp hand contains two arms 11, 12, and grooves 13 are arranged on the opposite closing surfaces of the two arms, and a lead-in pipe is formed when the guiding clamp hand is closed.

[0041] The lead-in pipe is used to guide the lead wire core into the terminal insulating sheath.

[0042] The lead-in pipe side facing the lead wire, that is, the side away from the crimping device, has a relatively large opening inner diameter, so as to ensure the lead wire to enter, and the other end opening inner diameter is not greater than the insulating sheath inner diameter of the terminal, and the work of guiding the lead wire into the terminal insulating sheath is completed through the cooperation of the two openings. Preferably, the lead-in pipe comprises a horn-shaped structure, and the horn-shaped structure has a large opening at one end away from the crimping device and a small opening at the other end. The opening at the one end away from the crimping device of the horn-shaped structure is greater than the maximum processable lead wire insulating skin outer diameter, and the opening at the other end of the horn-shaped structure is greater than the maximum processable lead wire core diameter.

[0043] In one embodiment, the lead-in pipe contains an integrated lead-in part 131 and a limiting part 132. The lead-in part is a horn-shaped structure, and the opening at one end away from the crimping device is large, and the opening at the other end connected to the limiting part is small.

[0044] The limiting part arranged on the side of the lead-in pipe close to the crimping device is a round hole, and the hole diameter is greater than the core end diameter and greater than or less than the skin end diameter. That is to say, when the guiding clamp hand is suitable for lead wires of multiple diameters, the hole diameter can be greater than the minimum processable lead wire insulating skin outer diameter or less than the processable lead wire insulating skin outer diameter.

[0045] When the limiting part hole diameter is less than the processable lead wire insulating skin outer diameter, the controller controls the guiding clamp hand to translate in the second stage in the axial direction of the lead-in pipe after being opened. It should be noted that the relationship between the limiting part hole diameter and the lead wire insulating skin outer diameter does not affect the use of the device of the present application, because when the hole diameter is less than the processable lead wire insulating skin outer diameter, the relative position of the limiting part and the skin end is used to divide the first stage translation and the second stage translation: the first stage translation ends before the skin end and the limiting part contact.

[0046] Preferably, the limiting part inner diameter is less than the insulating sheath inner diameter. When the limiting part inner diameter is less than the insulating sheath inner diameter, the two are opposite, and the lead wire deep into the terminal will not be bent due to the diameter of the insulating sheath being small and abutting against the insulating sheath front edge when the lead wire is sent through the limiting part pipe, thereby losing the most basic lead wire sending function.

[0047] Furthermore, the guide tube is provided with a receiving portion 33 at the end near the crimper. In one embodiment, the receiving portion is located on the side of the limiting portion away from the guide portion and is used to receive the insulating sheath of the terminal. The diameter of the receiving portion is slightly larger than the insulating sheath of the terminal, and the insulating sheath portion of the terminal extends into the receiving portion when the wire is introduced. In some embodiments, the receiving portion is not necessary. In one embodiment, the guide tube is provided with a stepped hole at the end near the crimper as a receiving portion to receive the insulating sheath of the terminal, and the bottom hole of the stepped hole constitutes the limiting portion, the diameter of which is the same as the narrow end of the guide tube.

[0048] Figure 4 This is a structural diagram of a crimper provided in an embodiment of this application. Figure 4 As shown, the crimper includes multiple crimp joints 21 that extend and retract synchronously around a central point to achieve variable-diameter clamping. Since fewer than four crimp joints cannot guarantee that all four sides of the terminal are subjected to force, it is preferable that there are four crimp joints. In one embodiment, the crimper has four crimp joints that rotate and clamp the terminal along a helical motion trajectory. The four crimp joints rotate perpendicular to the terminal's axial direction, and the controller controls the driver to provide pressure. Each crimp joint extends and retracts synchronously under the drive of the crimper driver to clamp the terminal.

[0049] The portion of the terminal that is clamped is located on the metal part of the terminal, and may also include at least a portion of the insulating sheath.

[0050] During the crimping process, one end of the guide clamp's inlet tube faces the direction of the incoming wire, and the other end faces the center point of each crimping joint hole on the crimper.

[0051] like Figure 5 As shown, in one embodiment, the crimper driver includes a first driver 41 and a second driver 42.

[0052] The first driver is configured to provide a first clamping force to the crimper during the first phase translation and the second phase translation.

[0053] For example, the first driver is located on the side of the crimper away from the guide gripper. The output end of the first driver contacts the first force-receiving end extending from inside the crimper, thereby applying a first clamping force to the crimper and completing the clamping and opening movements of the crimper according to the instructions of the controller.

[0054] The second driver is used to provide a second clamping force to the crimper after the translation stops. The second driver is disposed on the side of the track on which the drive mechanism moves the crimper. In the crimping working position, which is the position after the translation ends, when the crimper moves to the end of the wire core, the output end of the second driver enters the groove 22 of the crimper and abuts against the second force-bearing end in the groove, providing a second clamping force to the crimper.

[0055] The second clamping force is greater than the first clamping force. It should be noted that the first driver has lower power, and the first clamping force it provides is only enough to ensure the crimper holds the terminal, not to deform it. The second driver has higher power, and the second clamping force it provides can cause permanent deformation to the terminal, thus achieving the crimping operation.

[0056] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A multi-wire diameter guiding crimping device, characterized in that, It includes a guide gripper, a crimper, a drive mechanism, and a controller; A guide gripper is provided at the opening of the crimper, which is integrated with the crimper to form a single component; The guide gripper has grooves on its opposite closed surfaces, forming an inlet tube when closed. The inlet tube includes a flared structure, with the opening at the end of the flared structure away from the crimper being larger than the opening at the other end. The drive mechanism is used to drive the component to move axially in the inlet tube; The controller, connected to the drive mechanism, is used to control the axial translation of the component in the inlet tube; it is also used to control the force generated by the crimper to compress the terminal deformation.

2. The multi-wire diameter guiding crimping device according to claim 1, characterized in that, It also includes a crimp driver connected to the controller to provide clamping force for the crimp.

3. The multi-wire diameter guiding crimping device according to claim 1, characterized in that, The crimper comprises multiple crimp joints that extend and retract synchronously around a central point under the drive of a crimper driver.

4. The multi-wire diameter guiding crimping device according to claim 1, characterized in that, It also includes a guide gripper actuator connected to the controller, which closes the guide gripper during a first-stage translation and opens the guide gripper during a second-stage translation.

5. The multi-wire diameter guiding and pressing device according to claim 2, characterized in that, The crimping driver further includes a first driver and a second driver; The first driver is configured to provide a first clamping force to the crimper during the translation; The second driver is used to provide a second clamping force to the crimper after translation stops; The second clamping force is used to compress the deformation of the terminal and is greater than the first clamping force.

6. The multi-wire diameter guiding crimping device according to claim 5, characterized in that, The output end of the first driver contacts the first force-bearing end of the crimper, thereby applying a first clamping force to the crimper.

7. The multi-wire diameter guiding crimping device according to claim 5, characterized in that, The second driver is disposed on the side of the track on which the drive mechanism moves the component. In the set working position, the output end of the second driver contacts the second force-receiving end of the crimper and applies a second clamping force to the crimper.

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