Automobile wire harness terminal bending apparatus and method

Abstract

The application relates to the technical field of automobile wire harness connector terminal processing, in particular to an automobile wire harness terminal bending equipment and method, which comprises an installation mechanism, a supporting mechanism is arranged on the installation mechanism, the supporting mechanism comprises a fixed supporting frame and a movable supporting frame, and a bending mechanism is arranged on the supporting mechanism. Advantages are as follows: the bending position of the multi-layer terminal is positioned accurately at one time through the bending module, the processing efficiency is improved; a plurality of bending assemblies and corresponding rotating connecting pieces are matched with each other, the multi-layer terminal is sequentially and continuously bent from top to bottom, the bending interval time of different layers of terminals is shortened; the multi-layer terminal is limited correspondingly, the stability and precision in the bending process are improved; the multi-layer terminals are correspondingly blocked, adjacent layers of terminals are prevented from colliding and extruding on the motion track in the bending process, and the quality of terminal bending is ensured.

Description

Technical Field

[0001] This invention relates to the field of automotive wiring harness connector terminal processing technology, and in particular to an automotive wiring harness terminal bending device and method. Background Technology

[0002] Automotive wiring harness connectors are core components in wiring harness systems that enable separable electrical connections. They primarily provide a stable, low-resistance current path for internal terminals. Terminals are precision metal parts within the connector that enable electrical connections, achieving low contact resistance through stable contact points. Terminal bending is a critical process in wiring harness connector manufacturing. Common bending methods include L-bending (90-degree bending), where the terminal is bent axially at a 90-degree angle using bending equipment. This is often used when the terminal needs to be inserted into a control unit perpendicular to the wiring harness direction to achieve conductivity. Modern automotive electronics and high-end industrial equipment use highly precise automotive wiring harness terminal connectors, such as complex connectors with multiple rows and columns of terminals, stepped distribution of multiple rows of terminals, or terminals of equal length within the same row. Typically, a bending mechanism moves to the corresponding layer of terminals to be bent, performs the bending operation, and then repositions to the next layer of terminals to be bent, repeating this process for complex wiring harness terminals with multiple rows of terminals. However, repeated positioning and bending result in low processing efficiency. Furthermore, when bending the next layer of terminals, the next layer of terminals will spring back slightly during bending. If the distance between the two layers of terminals is close, the upper layer of terminals will collide and be squeezed on the movement trajectory of the lower layer of terminals. In severe cases, this can lead to deformation or damage, thereby affecting the accuracy and quality of terminal bending.

[0003] Therefore, in order to improve the efficiency and quality of bending processes, this invention provides an automotive wiring harness terminal bending device and method. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing an automotive wiring harness terminal bending device and method.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an automotive wiring harness terminal bending device, comprising an installation mechanism, wherein the installation mechanism is used for bottom support and front and rear side limiting, and a support mechanism is provided on the installation mechanism, the support mechanism comprising a fixed support frame fixedly connected to the front of the top wall of the installation mechanism and a movable support frame slidably connected to the rear of the top wall of the installation mechanism.

[0006] The support mechanism is equipped with a bending mechanism, which includes an L-shaped positioning plate fixedly connected to the movable support frame and multiple bending components disposed on the movable support frame. It also includes a rotating connector disposed on the fixed support frame, and the rotating connector corresponds to the bending components front and back.

[0007] The movable support frame slides forward, causing the L-shaped positioning plate and bending components to connect with the fixed support frame and rotating connector to form a bending module. This module positions the bending positions of multiple layers of terminals in one go. Multiple bending components and corresponding rotating connectors work together to perform orderly and continuous bending operations of multiple layers of terminals from top to bottom. The bending sections of terminals in adjacent layers are blocked by the bending components.

[0008] In the aforementioned automotive wiring harness terminal bending device, the L-shaped positioning plate and multiple bending components are arranged in a stepped manner to match the multi-layer terminals of the wiring harness terminal, and the rear side wall of the fixed support frame is provided with a slot that matches the front end of the L-shaped positioning plate.

[0009] In the aforementioned automotive wiring harness terminal bending device, the bending assembly includes a plug-in connector fixedly connected to the front side wall of the movable support frame. The middle part of the plug-in connector is Z-shaped, and the rear side wall of the fixed support frame has a slot 2 that matches the front end of the plug-in connector.

[0010] In the aforementioned automotive wiring harness terminal bending device, a rotating shaft is rotatably connected to the right side wall of the vertical section of the plug-in connector. The middle part of the rotating shaft is cylindrical, and the front end is cross-shaped. A rotating drive component is fixedly connected to the rear side wall of the rotating shaft.

[0011] In the aforementioned automotive wiring harness terminal bending device, the rotating drive component includes a connecting column fixedly connected to the rear side wall of the rotating shaft and a gear fixed coaxially with the connecting column. The connecting column is rotatably connected to the movable support frame, and the gear is rotatably connected to the rear side wall of the movable support frame. A bending component is fixedly connected to the middle of the rotating shaft.

[0012] In the aforementioned automotive wiring harness terminal bending device, the rotating connector includes a second connecting column rotatably connected to a fixed support frame and a second gear fixed coaxially with the second connecting column. The second gear is rotatably connected to the front side wall of the fixed support frame, and the rear side wall of the second connecting column is provided with a cross groove adapted to the front end of the rotating shaft.

[0013] The aforementioned automotive wiring harness terminal bending device also includes two sets of drive mechanisms mounted on a fixed support frame and a movable support frame. The drive mechanisms include a locking component and a drive component.

[0014] In the aforementioned automotive wiring harness terminal bending device, the drive assembly includes a U-shaped movable frame slidably connected to a fixed support frame and a movable support frame. A trapezoidal block two fixed to a horizontal section is provided inside the opening of the U-shaped movable frame, and a rack two adapted to gear one and gear two is fixedly connected to the upper side wall of the U-shaped movable frame.

[0015] In the aforementioned automotive wiring harness terminal bending device, the locking assembly includes multiple L-shaped movable frames slidably connected to a fixed support frame and a movable support frame. The L-shaped movable frames correspond to the rotating connector and the rotating drive component. The upper end of the L-shaped movable frame is fixedly connected to a rack that is adapted to gear one and gear two, and the lower end of the L-shaped movable frame is fixedly connected to a trapezoidal block one that is adapted to trapezoidal block two.

[0016] As a preferred technical solution of the present invention, the present invention also provides a method for bending automotive wiring harness terminals, which is completed by using the above-mentioned automotive wiring harness terminal equipment, specifically including the following steps: S1, preparation work: crimping the terminal onto the connector.

[0017] S2, Pre-positioning: The robotic arm grasps the connector and moves the connector and terminals to the mounting mechanism for positioning. The support mechanism and bending mechanism work together to position the bending position.

[0018] S3, Layered Continuous Bending: The bending mechanism performs continuous bending operations on multiple layers of terminals distributed from short to long from top to bottom.

[0019] S4. Discharge: The support mechanism and bending mechanism are disconnected, and the robotic arm picks up the bent terminal and discharges it.

[0020] Compared with existing technologies, the advantages of this invention are as follows: The movable support frame slides forward, driving the L-shaped positioning plate and bending assembly to connect with the fixed support frame and rotating connector to form a bending module. This allows for precise positioning of the bending positions of multi-layer terminals in a single operation, improving processing efficiency. Multiple bending components and corresponding rotating connectors cooperate, driving each other to rotate sequentially from the upper left to the lower right. The bending components undergo a 90-degree flip and bending operation, allowing for continuous bending of the multi-layer terminals from top to bottom, shortening the bending time between different layers. The bending interval of the terminals; the top and bottom of the bending point of the topmost terminal are limited by the L-shaped positioning plate and the corresponding plug-in connecting frame, respectively. The top and bottom of the bending point of the non-topmost terminal are limited by the adjacent plug-in connecting frames above and below, respectively, which improves the stability and accuracy during the bending process; the bending section of the non-topmost terminal is limited by the bending parts on the left and right after flipping. The bending sections of the terminals of adjacent layers are blocked by the bending parts after flipping between them, so as to avoid the terminals of adjacent layers colliding and squeezing each other on the movement trajectory during the bending process, and ensure the quality of terminal bending. Attached Figure Description

[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the overall structure.

[0023] Figure 2This is a schematic diagram of the wire harness terminal before bending.

[0024] Figure 3 This is a schematic diagram of the structure of the wire harness terminal after bending.

[0025] Figure 4 This is a structural diagram of the L-shaped positioning plate and bending assembly before they are connected to the fixed support frame and rotating connector.

[0026] Figure 5 for Figure 4 A structural diagram from another perspective.

[0027] Figure 6 This is a schematic diagram of the structure of the bent part before it is rotated.

[0028] Figure 7 This is a schematic diagram of the structure of the bent part after rotation.

[0029] Figure 8 This is a schematic diagram showing the positional relationship between the wire harness terminals before bending and before the bent component rotates.

[0030] Figure 9 This is a schematic diagram showing the positional relationship between the wire harness terminals after bending and after the bent parts are rotated.

[0031] Figure 10 This is a partial structural breakdown diagram of the drive mechanism.

[0032] Figure 11 This is a schematic diagram of the U-shaped movable frame before it is moved.

[0033] Figure 12 This is a structural diagram of the U-shaped movable frame during its movement.

[0034] In the diagram: 1. Installation mechanism; 11. Bending table; 12. Mounting frame; 13. Support plate; 2. Support mechanism; 21. Fixed support frame; 22. Movable support frame; 3. Bending mechanism; 31. L-shaped positioning plate; 32. Bending assembly; 321. Insertion connection frame; 322. Rotating shaft; 323. Rotation drive component; 324. Bending component; 33. Rotation connection component; 4. Drive mechanism; 41. Locking assembly; 411. L-shaped movable frame; 412. Trapezoidal block one; 413. Rack one; 42. Drive assembly; 421. U-shaped movable frame; 422. Trapezoidal block two; 423. Rack two. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Reference Figure 1 , Figure 4 and Figure 5 An automotive wiring harness terminal bending device is mainly used for bending the terminals of automotive wiring harness connectors. It includes an installation mechanism 1, which is used for bottom support and front and rear side limiting. The installation mechanism 1 includes a bending table 11, and the left side of the top wall of the bending table 11 is symmetrically fixed with a mounting bracket 12 for front and rear side limiting of the connector seat of the wiring harness terminal. The right side of the top wall of the bending table 11 is fixedly connected with a support plate 13 for bottom support of the connector seat of the wiring harness terminal.

[0037] Reference Figure 1 , Figure 4 and Figure 5 The installation mechanism 1 is provided with a support mechanism 2, which includes a fixed support frame 21 fixedly connected to the front of the top wall of the installation mechanism 1 and a movable support frame 22 that is slidably connected to the rear of the top wall of the installation mechanism 1 by being driven by an electric slider.

[0038] Reference Figure 1 , Figure 4 and Figure 5 The support mechanism 2 is provided with a bending mechanism 3. The bending mechanism 3 includes an L-shaped positioning plate 31 fixedly connected to the movable support frame 22 and a plurality of bending components 32 disposed on the movable support frame 22. It also includes a rotating connector 33 disposed on the fixed support frame 21, and the rotating connector 33 corresponds to the bending components 32 front and back. The L-shaped positioning plate 31 and the plurality of bending components 32 are distributed in a stepped manner to match the multi-layer terminals of the wire harness terminal. The L-shaped positioning plate 31 is located above the uppermost terminal of the wire harness terminal, and the plurality of bending components 32 are respectively located between two adjacent layers of terminals. The rear side wall of the fixed support frame 21 is provided with a slot that matches the front end of the L-shaped positioning plate 31. The L-shaped positioning plate 31 is engaged with the fixed support frame 21.

[0039] The present invention is applied to a complex wire harness terminal connector with multiple rows and columns of terminals, multiple rows of terminals arranged in a stepped manner, and terminals in the same row of terminals of equal length. The terminals in the uppermost layer are the shortest, and the terminals in the lowermost layer are the longest. The complex wire harness terminal connector includes a connector base and multiple rows of terminals already installed on the connector base. The bending process includes pre-positioning and step-by-step continuous bending, and sequential bending after one precise positioning.

[0040] During the pre-positioning of the wire harness terminal connector, the wire harness terminal connector is first placed on the bending table 11 by a mechanical gripper (not shown in the figure). The connector seat is placed between two opposing mounting brackets 12, and the bottom of the connector seat is supported by the bending table 11 and the support plate 13 (e.g., Figure 8 (As shown).

[0041] During the pre-positioning of the L-shaped positioning plate 31 and bending assembly 32, the movable support frame 22 is driven by an electric slider to slide from back to front. The movable support frame 22 causes the L-shaped positioning plate 31 and bending assembly 32 to move forward as a whole. The L-shaped positioning plate 31, bending assembly 32, fixed support frame 21, and rotating connector 33 are connected to form a bending module. Multiple bending assemblies 32 perform bending operations on the multi-layer terminals sequentially from top to bottom. The initial state of the bending operation of this complex wire harness terminal connector is as follows: Figure 2 As shown, the state after bending is as follows Figure 3 As shown.

[0042] Reference Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 The bending assembly 32 includes a plug-in connecting frame 321 fixedly connected to the front side wall of the movable support frame 22. The middle part of the plug-in connecting frame 321 is Z-shaped, and the front end of the plug-in connecting frame 321 is inverted L-shaped. The rear side wall of the fixed support frame 21 has a slot that matches the front end of the plug-in connecting frame 321. The plug-in connecting frame 321 is engaged with the fixed support frame 21. The right side wall of the vertical section of the plug-in connecting frame 321 is rotatably connected to a rotating shaft 322. The middle part of the rotating shaft 322 is cylindrical, and the front end is cross-shaped. The rear side wall of the rotating shaft 322 is fixedly connected to a rotating drive component 323. The rotating drive component 323 includes a connecting column fixedly connected to the rear side wall of the rotating shaft 322 and a gear fixedly coaxially with the connecting column. The connecting column is rotatably connected to the movable support frame 22, and the gear is rotatably connected to the rear side wall of the movable support frame 22. The middle part of the rotating shaft 322 is fixedly connected to a bending component 324.

[0043] Reference Figure 4 , Figure 5 , Figure 6 and Figure 10 The rotating connector 33 includes a second connecting column rotatably connected to the fixed support frame 21 and a second gear fixed coaxially with the second connecting column. The second gear is rotatably connected to the front side wall of the fixed support frame 21. The rear side wall of the second connecting column is provided with a cross groove that matches the front end of the rotating shaft 322. The rear side wall of the second connecting column is engaged with the front end of the rotating shaft 322.

[0044] Reference Figure 1 , Figure 4, Figure 5 , Figure 10 , Figure 11 and Figure 12 A bending device for automotive wiring harness terminals further includes two sets of drive mechanisms 4 disposed on a fixed support frame 21 and a movable support frame 22. The drive mechanism 4 includes a locking component 41 and a drive component 42. The drive component 42 includes a U-shaped movable frame 421 that is slidably connected to the fixed support frame 21 and the movable support frame 22 by an electric slider. The sliding path is inclined from the upper left to the lower right. A trapezoidal block 422 fixed on the horizontal section is disposed in the opening of the U-shaped movable frame 421. A rack 423 adapted to gear 1 and gear 2 is fixedly connected to the upper side wall of the U-shaped movable frame 421.

[0045] Reference Figure 1 , Figure 4 , Figure 5 , Figure 10 , Figure 11 and Figure 12 The locking assembly 41 includes multiple L-shaped movable frames 411 that are slidably connected to the fixed support frame 21 and the movable support frame 22 by springs (not shown in the figure), and the sliding path is inclined from the lower left to the upper right. The L-shaped movable frames 411 correspond to the rotating connector 33 and the rotating drive 323. The upper end of the L-shaped movable frame 411 is fixedly connected to a rack 413 that is adapted to gear one and gear two, and the lower end of the L-shaped movable frame 411 is fixedly connected to a trapezoidal block 412 that is adapted to trapezoidal block two 422.

[0046] The movable support frame 22 drives the L-shaped positioning plate 31 and the bending assembly 32 to move forward as a whole, as follows: The L-shaped positioning plate 31 gradually moves to the top of the terminal. During the movement, the bottom wall of the left part of the L-shaped positioning plate 31 slides against the connector seat. The plug-in connecting frame 321 gradually moves to the top of the corresponding multiple non-top terminal. The bottom wall of the left part of the plug-in connecting frame 321 slides against the connector seat, ensuring that the L-shaped positioning plate 31 and the plug-in connecting frame 321 remain horizontal during the movement, which facilitates subsequent docking operations. The adjacent terminal layers are separated by the plug-in connecting frame 321 and the bending component 324. Multiple bending assemblies 32 move and position simultaneously to achieve one-time accurate positioning of the bending position, without the need for multiple round trips for bending positioning.

[0047] The L-shaped positioning plate 31, bending assembly 32, fixed support frame 21, and rotating connector 33 are connected to form a bending module, as follows: The L-shaped positioning plate 31, plug-in connector 321, and rotating shaft 322 gradually slide forward. The front end of the L-shaped positioning plate 31 engages with slot one on the fixed support frame 21, the front end of the plug-in connector 321 engages with corresponding slot two on the fixed support frame 21, and the front end of the rotating shaft 322 engages with corresponding cross slot on connecting column two. The connection is thus completed. (Previously, the connection was as follows...) Figure 4 , Figure 5 and Figure 6 After docking, as Figure 1 As shown. It should be noted that the cross groove is locked during docking and aligned with the front end of the rotating shaft 322.

[0048] Multiple bending components 32 are driven by a drive mechanism 4 to sequentially bend the multi-layer terminals from top to bottom. Specifically: Figure 4 , Figure 5 , Figure 10 , Figure 11 and Figure 12 As shown, in the initial state, the L-shaped movable frame 411 supports rack 413 and trapezoidal block 412. The rack 413 on the front side meshes with gear 2 of the rotating connector 33, and the rack 413 on the rear side meshes with gear 1 of the corresponding rotating drive 323, thereby locking the positions of the rotating connector 33 and the rotating drive 323.

[0049] The U-shaped movable frames 421 on both the front and rear sides simultaneously slide from the upper left to the lower right on the corresponding fixed support frame 21 and movable support frame 22 via hydraulic rods (not shown in the figure). This causes the front U-shaped movable frame 421 to gradually approach the corresponding gear two, and the rear U-shaped movable frame 421 to gradually approach the corresponding gear one. At the same time, it causes the trapezoidal block two 422 to approach the corresponding trapezoidal block one 412. The inclined side of trapezoidal block two 422 matches the inclined side of trapezoidal block one 412. When trapezoidal block two 422 moves, its inclined side pushes the inclined side of trapezoidal block one 412. The inclined side, trapezoidal block 412 drives L-shaped movable frame 411 and rack 413 to move to the upper right. The spring connecting L-shaped movable frame 411 is compressed, and rack 413 no longer meshes with the corresponding gear 1 and gear 2. At the same time as the lock is released, U-shaped movable frame 421 meshes with the corresponding gear 1 and gear 2. Rotating connector 33 and rotating drive 323 are controlled by drive assembly 42. U-shaped movable frame 421 continues to drive rack 423 to move to the lower right. Rack 423 drives the corresponding gear 1 and gear 2 to rotate counterclockwise at the same time.

[0050] After rotating 90 degrees, trapezoidal block 2 422 disengages from trapezoidal block 1 412 and moves closer to the next trapezoidal block 1 412. The L-shaped movable frame 411, through spring reset, drives rack 1 413 to relock the corresponding gears 1 and 2, maintaining the state after the 90-degree rotation. Simultaneously, rack 2 423 disengages from the corresponding gears 1 and 2 and moves closer to the next gears 1 and 2. Through the above driving process, multiple bending components 32 and rotating connectors 33 are driven to rotate sequentially from the upper left to the lower right.

[0051] refer to Figure 6 , Figure 7 , Figure 8 and Figure 9 The rotating connector 33 and the rotating drive 323 drive the rotating shaft 322 to rotate counterclockwise by 90 degrees on the plug-in connector 321. The bending component 324 performs a 90-degree flip and bending operation, bending the multi-layer terminals sequentially from top to bottom. The top and bottom of the bending point of the uppermost terminal are limited by the L-shaped positioning plate 31 and the corresponding plug-in connector 321, respectively. The top and bottom of the bending points of terminals other than the uppermost terminal are limited by the adjacent plug-in connectors 321 above and below. During bending, the bending component 324 bends the terminals of the same layer in batches. After bending, the bending component 324 remains in a locked state.

[0052] The bending section of the topmost terminal is limited by the L-shaped positioning plate 31 and the corresponding flipped bending piece 324. The bending sections of the non-topmost terminals are limited by the adjacent left and right bending pieces 324 after flipping. The bending sections of terminals in adjacent layers are blocked by the bending pieces 324 between them. Therefore, it is avoided that the terminals in adjacent layers collide and squeeze each other on the movement trajectory during the bending process, which may lead to the deformation or damage of the terminals, thus ensuring the quality and accuracy of the terminal bending.

[0053] It should be noted that the parts of the L-shaped positioning plate 31, the plug-in connector 321, the rotating shaft 322, and the bent part 324 that come into contact with the terminal are all rounded with chamfers to prevent wear on the terminal surface.

[0054] It should be noted that the number of teeth of gear one, gear two, rack one 413, rack two 423, the sliding distance of the U-shaped movable frame 421, the path of the hydraulic rod pushing the U-shaped movable frame 421 to move, and the dimensions of the bending part 324 are all based on the corresponding terminals and the results obtained by those skilled in the art through multiple experiments.

[0055] The entire processing is monitored by taking photos of the terminal's position and angle before and after bending using an externally mounted industrial camera (not shown in the figure) to ensure bending accuracy. If any deviation is detected, the system will issue an alarm. A force sensor (not shown in the figure) is installed on the bent part 324 to monitor the resistance during the bending process. If abnormal resistance indicates potential interference or material problems, the equipment will stop immediately.

[0056] After the bending operation is completed, the movable support frame 22 slides backward, causing the L-shaped positioning plate 31, the bending component 32 to disengage from the fixed support frame 21 and the corresponding rotating connector 33. The bending component 32 moves backward to remove the gap between the two layers of terminals, making way for the output position of the bent wire harness terminal. When this wire harness terminal is output and the next wire harness terminal is output, the U-shaped movable frame 421 moves from the lower right position to the upper left position to reset.

[0057] In addition, the present invention also provides a method for bending automotive wiring harness terminals, which is completed using the above-mentioned automotive wiring harness terminal bending equipment, specifically including the following steps: S1, preparation: crimping the terminal onto the connector.

[0058] S2, Pre-positioning: The robotic arm grasps the connector and moves the connector and terminals to the mounting mechanism 1 for positioning. Two mounting brackets 12 limit the position from the front and rear sides, and the support plate 13 supports the bottom. The movable support frame 22 slides forward, causing the L-shaped positioning plate 31 and the bending assembly 32 to dock with the fixed support frame 21 and the rotating connector 33 to form a bending module, positioning the bending position of the multi-layer terminals in one go.

[0059] S3, Layered Continuous Bending: Multiple bending components 32 and corresponding rotating connectors 33 cooperate to perform orderly and continuous bending operations of multi-layer terminals from top to bottom.

[0060] S4. Discharge: The support mechanism 2 and the bending mechanism 3 are disconnected, and the robot arm picks up the bent terminal and discharges it.

[0061] In this invention, the movable support frame 22 slides forward, causing the L-shaped positioning plate 31 and bending assembly 32 to connect with the fixed support frame 21 and rotating connector 33 to form a bending module. This allows for precise positioning of the bending positions of multiple layers of terminals in one operation. Multiple bending assemblies 32 and corresponding rotating connectors 33 work together to perform continuous bending operations on the multiple layers of terminals sequentially from top to bottom. The multiple bending assemblies 32 limit and isolate adjacent layers of terminals, preventing collisions and compression during bending. Although this invention increases the number of bending assemblies 32 and rotating connectors 33 compared to existing technologies, thus increasing equipment costs, it shortens the bending interval between different layers of terminals, significantly improving processing efficiency. It also ensures stability and precision during the bending process, isolates multiple layers of terminals, and guarantees the quality of terminal bending.

[0062] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0063] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0064] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0065] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A bending device for automotive wiring harness terminals, comprising an installation mechanism, characterized in that, The installation mechanism is used for bottom support and front and rear side limiting. The installation mechanism is provided with a support mechanism, which includes a fixed support frame fixedly connected to the front of the top wall of the installation mechanism and a movable support frame slidably connected to the rear of the top wall of the installation mechanism. The support mechanism is provided with a bending mechanism, which includes an L-shaped positioning plate fixedly connected to the movable support frame and multiple bending components disposed on the movable support frame. It also includes a rotating connector disposed on the fixed support frame, and the rotating connector corresponds to the bending components front and back. The movable support frame slides forward, driving the L-shaped positioning plate and bending components to connect with the fixed support frame and rotating connector to form a bending module. The bending position of the multi-layer terminals is positioned at one time. Multiple bending components and corresponding rotating connectors cooperate to perform orderly and continuous bending operations of the multi-layer terminals from top to bottom. The bending sections of adjacent layers of terminals are blocked by the bending components. It also includes two sets of drive mechanisms mounted on a fixed support frame and a movable support frame, each drive mechanism comprising a locking component and a drive component; The drive assembly includes a U-shaped movable frame that is slidably connected to a fixed support frame and a movable support frame. A trapezoidal block two fixed to a horizontal section is provided in the opening of the U-shaped movable frame. A rack two that is adapted to gear one and gear two is fixedly connected to the upper side wall of the U-shaped movable frame. The locking assembly includes multiple L-shaped movable frames that are slidably connected to the fixed support frame and the movable support frame. The L-shaped movable frames correspond to the rotating connector and the rotating drive component. The upper end of the L-shaped movable frame is fixedly connected to a rack that is adapted to gear one and gear two, and the lower end of the L-shaped movable frame is fixedly connected to a trapezoidal block one that is adapted to trapezoidal block two.

2. The automotive wiring harness terminal bending device according to claim 1, characterized in that, The L-shaped positioning plate and multiple bending components are arranged in a stepped manner to match the multi-layer terminals of the wire harness terminals, and the rear side wall of the fixed support frame is provided with a slot that matches the front end of the L-shaped positioning plate.

3. The automotive wiring harness terminal bending device according to claim 1, characterized in that, The bending assembly includes a plug-in connector fixedly connected to the front side wall of the movable support frame. The middle part of the plug-in connector is Z-shaped, and the rear side wall of the fixed support frame has a slot 2 that matches the front end of the plug-in connector.

4. The automotive wiring harness terminal bending device according to claim 3, characterized in that, The vertical section of the plug-in connector is rotatably connected to a rotating shaft on its right side wall. The middle part of the rotating shaft is cylindrical and the front end is cross-shaped. A rotating drive component is fixedly connected to the rear side wall of the rotating shaft.

5. The automotive wiring harness terminal bending device according to claim 4, characterized in that, The rotation drive component includes a connecting column fixedly connected to the rear side wall of the rotation shaft and a gear fixedly coaxially with the connecting column. The connecting column is rotatably connected to the movable support frame, and the gear is rotatably connected to the rear side wall of the movable support frame. A bending component is fixedly connected to the middle of the rotation shaft.

6. The automotive wiring harness terminal bending device according to claim 5, characterized in that, The rotating connector includes a second connecting column rotatably connected to a fixed support frame and a second gear fixed coaxially with the second connecting column. The second gear is rotatably connected to the front side wall of the fixed support frame, and the rear side wall of the second connecting column has a cross groove adapted to the front end of the rotating shaft.

7. A method for bending automotive wiring harness terminals, performed using an automotive wiring harness terminal bending device as described in claim 1, characterized in that: Includes the following steps: S1. Preparation: Crimp the terminals onto the connector; S2, Pre-positioning: The robotic arm grasps the connector and moves the connector and terminals to the mounting mechanism for positioning. The support mechanism and bending mechanism work together to position the bending position. S3, Layered Continuous Bending: The bending mechanism performs continuous bending operations on multiple layers of terminals distributed from short to long from top to bottom; S4. Discharge: The support mechanism and bending mechanism are disconnected, and the robotic arm picks up the bent terminal and discharges it.

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