Auxiliary crimping process for wire harness terminal of new energy automobile

Abstract

The invention relates to a new energy automobile wire harness terminal auxiliary crimping process, and relates to the technical field of automobile part production, and the new energy automobile wire harness terminal auxiliary crimping process comprises the following steps: arranging operation: guiding a cable at the end part of a wire harness by using a bunching mechanism, and controlling the positions of the cable at the end part of the cable and a terminal connecting bar; and crimping operation: connecting the end part of the wire harness with the terminal connecting plate in a hot pressing manner by utilizing the cooperation of the wire harness mechanism and the supporting mechanism. The arrangement operation is adopted, that is, the bunching mechanism is used for guiding the cable at the end of the wire harness, that is, the cable is straightened, and the cable which may deflect is arranged, so that when the end of the wire harness and a terminal connecting plate are subjected to hot pressing, the cable can be straightened, and the end of the wire harness can be straightened. Therefore, the possibility that a cable and a terminal connecting plate cannot be fully connected together is reduced, the influence on a wiring harness caused by shearing of a small amount of the cable can be reduced, and the crimping quality of the cable terminal is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component production, and in particular to an auxiliary crimping process for wiring harness terminals of new energy vehicles. Background Art

[0002] The wiring harness of new energy vehicles is usually used to connect the wires and cables of various components in new energy vehicles, including power lines, control signal lines, communication data lines and other types, which are responsible for transmitting electrical energy and control information. Therefore, the quality of the wiring harness of new energy vehicles directly affects the safety and reliability of electric vehicles. With the expansion of the functionality of new energy vehicles, in order to ensure the stability and security of internal data transmission in new energy vehicles, the wiring harness of new energy vehicles is becoming thicker and thicker, and more cables are integrated inside. When the cable and the communication interface are continued to be connected, the cable needs to be crimped on the terminal board.

[0003] For example, in the patent document with application number: 201922420684.1, a new energy vehicle wiring harness terminal crimping auxiliary support seat is disclosed, and it is specifically disclosed that by selecting the corresponding arc groove, the crimping of the terminal and the wiring harness is achieved in a manner suitable for terminals of different sizes.

[0004] In the above technical solution, since there are a large number of cables in the wiring harness, when crimping is performed for direct pressing, a few cables will bend under the action of the pressure, resulting in a few cables not being in contact with the entire wiring harness on the terminal board. After crimping, a few cables need to be sheared to reduce the problem of abnormal signal transmission caused by contact between the cables and the outer packaging shell. The quality of the finished product obtained in this process is affected by the shearing of a few cables, thereby affecting the quality of the cables. Summary of the invention

[0005] The purpose of the present invention is to provide an auxiliary crimping process for wiring harness terminals of new energy vehicles.

[0006] The technical problem solved by the present invention is to solve the problem of inaccurate cable crimping caused by crimping the cables and terminal connection rows when there are many cables in the wiring harness in the prior art.

[0007] The present invention can be implemented by the following technical solution: A new energy vehicle wiring harness terminal auxiliary crimping process includes the following operations:

[0008] Arrangement operation, by guiding the cables at the end of the harness using the harness mechanism, controlling the position of the cables and terminal connection row at the end of the cable;

[0009] The crimping operation connects the end of the wire harness and the terminal connection plate by heat pressing by utilizing the cooperation of the wire harness mechanism and the support mechanism.

[0010] A further technical improvement of the present invention is that a preliminary loading operation is provided before the arranging operation, for placing the terminal connection plate on the supporting mechanism, and transferring the end of the wire harness to the position of the terminal connection plate through the loading mechanism.

[0011] A further technical improvement of the present invention is that a re-feeding operation is provided between the arranging operation and the crimping operation, for utilizing the feeding mechanism to stably transfer the wire harness to the position of the terminal connection plate.

[0012] A further technical improvement of the present invention is that when the feeding mechanism is started, the wire harness is transferred to the feeding conveyor belt, and the starting of the feeding conveyor belt is used to transfer the entire wire harness laterally until the end of the wire harness moves to the position of the terminal connection plate.

[0013] A further technical improvement of the present invention is that when the arranging operation is in use, the feeding mechanism is used to drive the wire harness to move back and forth on the limit plate, and the wire harness is controlled to pass back and forth inside the n-type hole to arrange the terminal cables of the wire harness.

[0014] A further technical improvement of the present invention is that when the sorting operation is in use, the height of the guide conveyor belt is controlled by starting the limit push rod, the guide conveyor belt is squeezed onto the feeding conveyor belt, and the end of the wire harness placed on the feeding conveyor belt is pressed down to limit the position.

[0015] A further technical improvement of the present invention is that when the re-feeding operation is started, the guide conveyor belt is pressed down on the wire harness by starting the limit push rod, and the end of the wire harness is transferred to the terminal connection row by jointly starting the guide conveyor belt and the feeding conveyor belt.

[0016] A further technical improvement of the present invention is that when the crimping operation is started, the top support plate is controlled to move longitudinally by starting the wire harness telescopic rod until the crimping platform is tightly pressed against the end of the wire harness, so that the end of the wire harness is tightly attached to the terminal connection row. Subsequently, the top support plate is continuously pressed downward to control the mating platform to move longitudinally to the lowest end, and the crimping platform starts the hot pressing program to achieve the connection between the wire harness end and the terminal connection plate.

[0017] A further technical improvement of the present invention is that when the mating platform moves longitudinally, the bottom of the mating platform contacts a mating vertical rod, and the mating vertical rod rotates under the action of the mating rotating shaft until the bottom end of the mating vertical rod is limited by the limiting bottom plate, and the buffer crimping plate rotates and rotates on the side of the top support plate, thereby squeezing and supporting the top support plate.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present application adopts a sorting operation, that is, using a wire bundling mechanism to guide the cables at the ends of the wire harness, that is, to straighten the cables and sort out the cables that may be deflected, so that when the ends of the wire harness and the terminal connecting plate are hot-pressed, the possibility of the cables and the terminal connecting plate not being able to be fully connected together is reduced, and the impact of the shearing of a small amount of cables on the wire harness can be reduced, thereby ensuring the quality of the crimping of the cable terminals.

[0020] 2. When the present application is used through the sorting operation, the feeding mechanism is used to drive the wire harness to move back and forth on the limit plate, that is, the existence of the limit plate can be used to straighten the messy cables on the wire harness, that is, when the cable moves to one side, the limit plate is used to limit it, and when the cable moves back to its original position, the limit plate is moved upward to avoid interference with the cable caused by the limit plate. At the same time, the present application can stretch the cable by utilizing the combined action of the guide conveyor belt and the feeding conveyor belt, so that when the guide conveyor belt and the feeding conveyor belt work together, the wire harness can be pulled from the limit plate to guide the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 is a process flow chart of the present invention;

[0023] Figure 2 It is a schematic diagram of the position of the wire harness mechanism of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the wire harness mechanism and the support mechanism of the present invention;

[0025] Figure 4 It is a schematic diagram of the matching slot positions of the present invention;

[0026] Figure 5 It is a schematic diagram of the feeding structure of the present invention.

[0027] In the figure: 1. Support mechanism; 11. Matching platform; 12. Buffer crimping plate; 13. Matching vertical rod; 14. Limiting bottom plate; 15. Pressing limit column; 16. Pressing limit spring; 17. Matching rotating shaft; 18. Limiting slot; 19. Matching slot; 2. Wire harness mechanism; 21. Wire harness telescopic rod; 22. Top support plate; 23. Crimping platform; 24. Limiting plate; 3. Feeding mechanism; 31. Limiting push rod; 32. Limiting support frame; 33. Guide conveyor belt; 34. Feeding conveyor belt. DETAILED DESCRIPTION

[0028] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0029] See also Figure 1-5 As shown in the figure, the auxiliary crimping process of the wiring harness terminal of new energy vehicles includes the following operations:

[0030] The initial loading operation is to place the terminal connection plate on the support mechanism 1, place the wire harness on the loading mechanism 3, and transfer the wire harness to the support mechanism 1 by using the loading mechanism 3 to achieve the relative position matching of the terminal connection plate and the loading mechanism 3;

[0031] Arrangement operation, by using the wire harness mechanism 2 to perform preliminary position limiting arrangement on the matched terminal connection plate and the wire harness, so as to maintain the preliminary processing position of the terminal connection plate and the wire harness;

[0032] The feeding operation is to move and arrange the wire harness by using the feeding mechanism 3, that is, to arrange the multiple cables in the wire harness and transfer them to the supporting mechanism 1 again, so as to ensure the accurate position definition of the wire harness and the terminal connection plate;

[0033] The crimping operation utilizes the cooperation between the wire harness mechanism 2 and the support mechanism 1 so that the relative positions of the wire harness and the terminal connection plate are limited and connected by heat pressing.

[0034] In the above process, when the feeding mechanism 3 is started, the wire harness is placed on the feeding conveyor 34 through an external guiding device, and the feeding function of the wire harness is realized by starting the feeding conveyor 34. In this process, the initial position of the wire harness can be controlled by starting the feeding conveyor 34, so that the end of the wire harness can be guided from the feeding conveyor 34 to the matching platform 11 until it matches the position of the terminal connecting plate. In this process, even if the end of the wire harness moves out from the feeding conveyor 34, when the wire harness is placed on the feeding conveyor 34, the falling function of the end of the wire harness under the action of gravity can be avoided. At this time, there is a certain height difference between the wire harness and the terminal connecting plate, so the end of the wire harness will not rub against the terminal connecting plate, and the initial positioning of the position of the wire harness and the terminal connecting plate can be achieved, which is used to realize the initial feeding function of the wire harness.

[0035] When the sorting operation is in use, the reverse start of the loading conveyor belt 34 is utilized to drive the wiring harness to move in the reverse direction. At this time, the height of the top support plate 22 is controlled by the wiring harness telescopic rod 21, so that the limit plate 24 is lowered to the matching platform 11, so that the shape of the limit plate 24 is utilized to limit and sort the wiring harness until the cables at the ends of the wiring harness are sorted, so as to ensure that there are no cables bent in all directions in the wiring harness, so as to realize the straightening and limiting functions of the cables, thereby realizing the sorting of the cables; then, the limit push rod 31 is started to control the height of the guide conveyor belt 33, so that the limit push rod 31 controls the guide conveyor belt 33 and the loading conveyor belt 34 to cooperate, so that the guide conveyor belt 33 is squeezed on the loading conveyor belt 34, so as to realize the squeezing of the ends of the wiring harness, so that the ends of the sorted wiring harness can be squeezed longitudinally.

[0036] When the sorting operation is in use, the feeding conveyor belt 34 and the wire harness telescopic rod 21 are repeatedly used to achieve the sorting function of the wire harness multiple times, so as to further ensure the stability of the wire harness and the terminal connection plate during hot pressing connection, that is, through the action of multiple limit plates 24 and the action of the guide conveyor belt 33, the end of the wire harness can be fully sorted.

[0037] When the limit plate 24 and the matching platform 11 are matched, the present application adopts the limit plate 24 to be lowered to the matching platform 11. At this time, the limit plate 24 is clamped in the rubber constraint position of the wire harness. Then, when the feeding conveyor belt 34 rotates in the opposite direction, the cables at the end of the wire harness need to pass through the limit plate 24, and the N-shaped limit plate 24 is used to realize the arrangement and restraint of the cables at the end of the wire harness.

[0038] When the re-feeding operation is started, the limit push rod 31 continues to move longitudinally so that the guide conveyor belt 33 is pressed downward on the wire harness, and then the guide conveyor belt 33 and the feeding conveyor belt 34 are started together so that the wire harness can stably reach the terminal connection row to ensure that there are no messy cables at the end of the wire harness, thereby ensuring the initial connection between the wire harness and the terminal connection row.

[0039] When the crimping operation is started, the top support plate 22 is controlled to move longitudinally by starting the wire harness telescopic rod 21 until the crimping platform 23 is pressed tightly against the end of the wire harness so that the end of the wire harness is tightly attached to the terminal connection row. Then, the top support plate 22 is continuously pressed downward so that the top support plate 22 presses the mating platform 11 downward so that the bottom of the mating platform 11 contacts the mating vertical rod 13, so that the mating vertical rod 13 rotates under the action of the mating shaft 17 until the bottom end of the mating vertical rod 13 is limited by the limiting bottom plate 14. At this time, the buffer crimping plate 12 rotates and rotates on the side of the top support plate 22, so that the top support plate 22 is squeezed and supported to ensure the stability of the top support plate 22 and the mating platform 11 when they are pressed down, and to stably realize the final mating platform 11 to bounce upward.

[0040] In the present application, a feeding mechanism 3 for feeding the wire harness is included, wherein the feeding mechanism 3 is installed on the side of the supporting mechanism 1, and the supporting mechanism 1 is cooperated with a wire bundling mechanism 2. When in use, the feeding mechanism 3 is utilized to realize the feeding function of the wire harness, and the wire bundling mechanism 2 and the supporting mechanism 1 are utilized to realize the hot pressing connection function between the wire harness and the terminal connection row.

[0041] Specifically, the feeding mechanism 3 includes a feeding conveyor belt 34 for realizing direct feeding of the wire harness, wherein the feeding conveyor belt 34 is driven by a corresponding power chassis to realize the rotation of the feeding conveyor belt 34, and a guide conveyor belt 33 is arranged above the feeding conveyor belt 34, wherein the guide conveyor belt 33 is driven by a corresponding power chassis, and the guide conveyor belt 33 is rotatably installed on a limit support frame 32, wherein the limit support frame 32 is installed at the output end of the limit push rod 31, and the limit push rod 31 is used to control the longitudinal height of the limit support frame 32 to realize the control of the longitudinal height of the guide conveyor belt 33, thereby facilitating the mutual cooperation function of the guide conveyor belt 33 and the feeding conveyor belt 34, and facilitating the feeding of the wire harness.

[0042] Furthermore, the support mechanism 1 includes a matching platform 11, wherein a placement groove for placing and limiting the terminal connection plate is opened in the middle of the matching platform 11, and the placement groove also cooperates with the wiring harness mechanism 2 to realize the crimping function of the wiring harness. Furthermore, a downward pressure limit column 15 is fixedly installed at the bottom of the matching platform 11, wherein the downward pressure limit column 15 and the limit bottom plate 14 are slidably connected, and the limit bottom plate 14 is fixedly installed on the frame, and a downward pressure limit spring 16 is fixedly installed between the limit bottom plate 14 and the matching platform 11. The spring 16 is used to realize the supporting function of the mating platform 11. When the wiring harness mechanism 2 is started, it first contacts the mating platform 11 and gradually drives the mating platform 11 to move downward. At this time, the wiring harness mechanism 2 gradually enters the interior of the placement groove and presses down the wiring harness and the terminal connection row for connection. By utilizing the longitudinally movable mating platform 11, the process of pressing down and connecting can be slower, reducing the possibility of some cables at the end of the wiring harness being offset and confused under direct pressure, so as to ensure that the wiring harness and the terminal connection row can be stably connected.

[0043] In this process, when a large pressure is applied to the mating platform 11, the pressure is borne by the downward limit spring 16, which can easily cause damage to the downward limit spring 16. Therefore, in the present application, a mating shaft 17 is rotatably installed on the frame through a torsion spring, wherein a mating vertical rod 13 is fixedly installed on the mating shaft 17, wherein the mating vertical rod 13 and the buffer crimping plate 12 are fixedly connected, and the mating vertical rod 13 and the buffer crimping plate 12 are arranged at a ninety-degree angle, and a limiting slot 18 for limiting the buffer crimping plate 12 is provided at the bottom of the mating platform 11. When in use, when the mating platform 11 When it moves under the downward pressure, the mating vertical rod 13 gradually enters the position of the limiting groove 18, and then when the mating platform 11 continues to move downward, the mating vertical rod 13 will rotate around the mating shaft 17 until the lowest end of the mating vertical rod 13 is lowered to the limiting bottom plate 14. At this time, the buffer crimping plate 12 also rotates to a certain extent. The buffer crimping plate 12 is pressed on the top support plate 22 at a certain angle, further realizing the limiting function of the side of the top support plate 22, ensuring the relative stability of the position of the top support plate 22 and the mating platform 11 when moving downward.

[0044] The wiring harness mechanism 2 includes a wiring harness telescopic rod 21, wherein the wiring harness telescopic rod 21 is fixedly mounted on a frame, a top support plate 22 is fixed at the output end of the wiring harness telescopic rod 21, and a crimping platform 23 for hot pressing the end of the wiring harness and the terminal connection plate is fixed at the bottom of the top support plate 22, the crimping platform 23 cooperates with the placement groove, and a limit plate 24 for arranging the end of the wiring harness is fixed on the crimping platform 23, the limit plate 24 is n-shaped, and a matching slot 19 for cooperating with the limit plate 24 is provided on the matching platform 11, when the wiring harness and the terminal connection plate are pressed together, the limit plate 24 is inserted into the matching slot 19, so that the crimping platform 23 can directly act on the end of the wiring harness to press the wiring harness and the terminal connection plate together.

[0045] The present invention is used, firstly, the terminal connecting plate is placed inside the placement groove of the matching platform 11, and then the wire harness is placed on the loading conveyor belt 34, and the starting of the loading conveyor belt 34 is used to drive the wire harness to move until the wire harness moves to the edge position, at which time the end of the wire harness and the terminal connecting plate are matched in position, but at this time the end of the wire harness and the terminal connecting plate are at different heights, and then the starting of the wire harness telescopic rod 21 is used to control the height of the top support plate 22, so that the limit plate 24 is initially in contact with the matching platform 11, and at this time the middle position of the limit plate 24 passes through the rubber cover position with the wire harness, and then the reverse rotation of the loading conveyor belt 34 is used to make the end of the wire harness pass through the limit plate 24 for aggregation and limit, until the end of the wire harness moves to the loading conveyor belt 34, and the starting of the limit push rod 31 is used to control the height of the limit support frame 32, so that the guide conveyor belt 33 is used to contact the end of the wire harness, and the end of the wire harness is pressed down for sorting, and then The limit push rod 31 is used to control the guide conveyor belt 33 to move away from the feeding conveyor belt 34, and the cycle is repeated multiple times to fully organize the cables at the end of the wiring harness. Subsequently, the top support plate 22 is controlled to move longitudinally by starting the wiring harness telescopic rod 21 until the crimping platform 23 is pressed tightly against the end of the wiring harness, so that the end of the wiring harness is tightly attached to the terminal connection row. Subsequently, the top support plate 22 is continuously pressed downward to make the top support plate 22 press the mating platform 11 downward, so that the bottom of the mating platform 11 contacts the mating vertical rod 13, so that the mating vertical rod 13 rotates under the action of the mating rotating shaft 17 until the bottom end of the mating vertical rod 13 is limited by the limit bottom plate 14. At this time, the buffer crimping plate 12 rotates and rotates on the side of the top support plate 22, so that the top support plate 22 is squeezed and supported to ensure the stability of the top support plate 22 and the mating platform 11 when pressed down, and to stably realize the final mating platform 11 to bounce upward.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. Auxiliary crimping process for wiring harness terminals of new energy vehicles, characterized by: The following operations are included: Arranging operation, by guiding the cables at the end of the harness using the harness mechanism (2), controlling the position of the cables and the terminal connection row at the end of the cable; The crimping operation connects the end of the wire harness and the terminal connection plate by means of heat pressing by utilizing the cooperation of the wire harness mechanism (2) and the support mechanism (1).

2. The auxiliary crimping process for wiring harness terminals of new energy vehicles according to claim 1 is characterized in that: A preliminary loading operation is also provided before the arranging operation, which is used to place the terminal connection plate on the support mechanism (1) and transfer the end of the wire harness to the position of the terminal connection plate through the loading mechanism (3).

3. The auxiliary crimping process for wiring harness terminals of new energy vehicles according to claim 2 is characterized in that: A re-feeding operation is also provided between the arranging operation and the crimping operation, for utilizing the feeding mechanism (3) to stably transfer the wire harness to the position of the terminal connection plate.

4. The auxiliary crimping process for wiring harness terminals of new energy vehicles according to claim 3 is characterized in that: When the feeding mechanism (3) is started, the wire harness is transferred to the feeding conveyor belt (34), and the entire wire harness is laterally transferred by starting the feeding conveyor belt (34) until the end of the wire harness moves to the position of the terminal connection plate.

5. The auxiliary crimping process for wiring harness terminals of new energy vehicles according to claim 3 is characterized in that: When the arranging operation is in use, the feeding mechanism (3) is used to drive the wire harness to move back and forth on the limit plate (24), and the wire harness is controlled to pass back and forth inside the n-shaped hole, thereby arranging the end cables of the wire harness.

6. The auxiliary crimping process for wiring harness terminals of new energy vehicles according to claim 5 is characterized in that: When the arranging operation is in use, the height of the guide conveyor belt (33) is controlled by starting the limit push rod (31), the guide conveyor belt (33) is pressed onto the feeding conveyor belt (34), and the end of the wire harness placed on the feeding conveyor belt (34) is pressed down and limited.

7. The auxiliary crimping process for wiring harness terminals of new energy vehicles according to claim 5 is characterized in that: When the re-feeding operation is started, the guide conveyor belt (33) is pressed down on the wire harness by starting the limit push rod (31), and the end of the wire harness is transferred to the terminal connection row by jointly starting the guide conveyor belt (33) and the feeding conveyor belt (34).

8. The auxiliary crimping process for wiring harness terminals of new energy vehicles according to claim 3 is characterized in that: When the crimping operation is started, the top support plate (22) is controlled to move longitudinally by starting the wire harness telescopic rod (21) until the crimping platform (23) presses tightly against the end of the wire harness, so that the end of the wire harness is tightly attached to the terminal connection row. Subsequently, the top support plate (22) is continuously pressed downward to control the matching platform (11) to move longitudinally to the bottom end, and the crimping platform (23) starts the hot pressing process to achieve the connection between the wire harness end and the terminal connection plate.

9. The auxiliary crimping process for wiring harness terminals of new energy vehicles according to claim 8, characterized in that: When the matching platform (11) moves longitudinally, the bottom of the matching platform (11) contacts the matching vertical rod (13), and the matching vertical rod (13) rotates under the action of the matching rotating shaft (17) until the lowest end of the matching vertical rod (13) is limited by the limiting bottom plate (14), and the buffer crimping plate (12) rotates and rotates on the side of the top support plate (22), so as to squeeze and support the top support plate (22).

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