Automobile wire harness automatic crimping device

Abstract

The application discloses a kind of automatic crimping equipment of automobile wire harness, it is related to wire harness terminal crimping technical field, including fixed frame, a plurality of clamping grooves II are opened with equal interval on transmission plate, a pair of parallelly arranged limit swing rods are rotatably installed on the bottom of fixed frame, lifting plate is vertically reciprocatingly slidably installed on support frame, wedge surface is opened in the two inner walls of crimping push block, a pair of lateral crimping wedge blocks on the both sides of terminal are slidably installed on guide frame, vertical crimping block is vertically corresponding with terminal, feeding belt for conveying terminal is arranged on guide frame;The handle of the present application is rotated, so that the traction elbow can drive transmission plate to swing under the traction of limit swing rod in horizontal state, transmission plate drives wire harness on fixed frame to be stepwise conveyed towards guide frame, so that wire harness can be moved to crimping push block below one by one and terminal is crimped, greatly improve the crimping efficiency of wire harness and terminal.

Description

Technical Field

[0001] This invention relates to the field of wire harness terminal crimping technology, specifically to an automatic crimping device for automotive wire harnesses. Background Technology

[0002] Automotive wiring harnesses are the main network of automotive circuits. Without wiring harnesses, there would be no automotive circuits. A wiring harness is a component that connects circuits by crimping copper contact terminals with wires and cables, then molding an insulator or adding a metal shell, and bundling the wires together.

[0003] Wire harness terminal crimping is a process that uses a crimping device to apply pressure to the contact area between the wire and the terminal to form a tight connection. However, existing crimping devices require continuous feeding of the wire harness and terminal during use, and cannot automatically match and crimp the wire harness and terminal one by one. This results in low crimping efficiency and is not conducive to batch crimping of automotive wire harnesses and terminals. To address the above-mentioned technical shortcomings of the existing technology, an automatic automotive wire harness crimping device is provided to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic crimping device for automotive wiring harnesses to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An automatic crimping device for automotive wiring harnesses includes a fixed frame with a support frame fixedly mounted on it. The fixed frame has several equally spaced slots I for placing the wiring harness. A guide frame is fixed to the side wall of the fixed frame, and terminals corresponding to the wiring harness are slidably mounted on the guide frame. A horizontally arranged transmission plate is mounted on the fixed frame, and several equally spaced slots II are formed on the transmission plate. A pair of parallel limiting swing rods are rotatably mounted at the bottom of the fixed frame. A traction bend rod is hinged to each limiting swing rod, with its middle section hinged to the bottom of the transmission plate. The traction bend rod is located away from the limiting swing rods. One end of the moving rod is hinged to a rotating handle driven by a dual-axis motor. A crossbar parallel to the transmission plate is hinged between the two traction rods. A lifting plate is vertically and reciprocally slidably installed on the support frame. A U-shaped pressing and pushing block is fixed at the lower end of the lifting plate. Both inner walls of the pressing and pushing block are provided with wedge surfaces. A pair of lateral pressing wedges located on both sides of the terminal are slidably installed on the guide frame. The lateral pressing wedges are vertically corresponding to the wedge surfaces. A vertical pressing block is installed on the pressing and pushing block. The vertical pressing block is vertically corresponding to the terminal. A feeding belt for conveying the terminal is provided on the guide frame.

[0007] As an improvement of the present invention: the shape of the card slot II is the same as the shape of the card slot I, and the distance between two adjacent card slots II is the same as the distance between two adjacent card slots I.

[0008] As an improvement of the present invention: a servo motor is installed on the support frame, and a rotating disk is coaxially fixed to the output shaft of the servo motor. A lifting plate fixed to the pressing and pushing block is vertically slidably installed on the support frame, and a pull rod is hinged between the lifting plate and the rotating disk.

[0009] As an improvement of the present invention: a partition is fixed at the bottom of the guide frame, and guide rods are fixed on both sides of the partition. A limiting sleeve plate that is fixed to the lateral pressing wedge is sleeved on the guide rod, and a return spring is fixedly connected between the limiting sleeve plate and the partition.

[0010] As an improvement of the present invention: a guide post is vertically fixed on the vertical pressing block, the guide post slides vertically through the pressing and pushing block, and a spring ring I is fixedly connected between the pressing and pushing block and the vertical pressing block.

[0011] As an improvement of the present invention: a vertical sliding column is vertically slidably installed on the pressing and pushing block, and a positioning arc block corresponding vertically to the wire harness is fixed at the lower end of the vertical sliding column. A spring ring II is fixed between the pressing and pushing block and the positioning arc block.

[0012] As an improvement of the present invention: three transmission pulleys are rotatably mounted at the bottom of the guide frame, the transmission pulleys are connected to the feeding belt, and bevel gears are coaxially fixed on the transmission pulleys. The dual-shaft motor drives and connects to incomplete bevel gears that intermittently mesh with the bevel gears.

[0013] As an improvement of the present invention: the guide frame has a strip-shaped hole, and the feeding belt is disposed in the strip-shaped hole.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] This invention utilizes a rotating handle to cause the traction lever to swing the transmission plate while maintaining a horizontal position under the traction of the limiting swing rod. The transmission plate then drives the wire harness on the fixed frame to move stepwise towards the guide frame, allowing each wire harness to move one by one to the pressing push block for pressing with the terminal. This significantly improves the pressing efficiency of the wire harness and terminal. The dual-axis motor drives the rotating handle to rotate simultaneously with the incomplete bevel gear. The incomplete bevel gear intermittently meshes with the bevel gear, causing the feeding belt to move the terminal stepwise to the corresponding wire harness. This achieves automatic one-to-one matching of the wire harness and terminal, making the pressing operation of the wire harness and terminal orderly and efficient.

[0016] In this invention, the crimping push block reciprocates downward to achieve crimping of pairs of wire harnesses and terminals one by one. When the crimping push block abuts against the lateral crimping wedges, the two lateral crimping wedges approach each other and bend the terminals laterally. Subsequently, the vertical crimping block vertically crimps the terminals during the downward movement, achieving sufficient bending deformation of the terminals and ensuring a tight and reliable crimping operation of the terminals and wire harnesses. After the crimping push block moves upward, the vertical crimping block and the lateral crimping wedges automatically reset, eliminating the need for manual reset and facilitating the crimping of the next pair of terminals and wire harnesses. This greatly improves the efficiency of the crimping operation of terminals and wire harnesses and reduces the workload. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention;

[0018] Figure 2 For the present invention Figure 1 A structural diagram from a certain perspective;

[0019] Figure 3 For the present invention Figure 1 A structural diagram from another perspective;

[0020] Figure 4 This is a partial structural diagram of the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of components such as the crimping push block, the lateral crimping wedge block, the vertical crimping block, and the terminal in this invention;

[0022] Figure 6 In this invention Figure 5 A structural diagram from a certain perspective;

[0023] Figure 7 In this invention Figure 5 A schematic diagram of a partial structure;

[0024] Figure 8 This is a schematic diagram of the connection structure of the guide frame, transmission pulley, feeding belt and bevel gear in this invention.

[0025] In the diagram: 1-Fixed frame, 2-Rotating disk, 3-Servo motor, 4-Lifting plate, 5-Wire harness, 6-Guide frame, 7-Terminal, 8-Crimping push block, 9-Side pressing wedge block, 10-Feeding belt, 11-Transmission pulley, 12-Tethering rod, 13-Transmission plate, 14-Slot I, 15-Slot II, 16-Limit swing rod, 17-Traction bending rod, 18-Handle, 19-Horizontal bar, 20-Dual-axis motor, 21-Positioning arc block, 22-Support frame, 23-Incomplete bevel gear, 24-Bevel gear, 25-Wedge surface, 26-Guide rod, 27-Vertical pressing block, 28-Vertical sliding column, 29-Guide column, 30-Spring coil I, 31-Partition plate, 32-Reset spring, 33-Limiting sleeve plate, 34-Strip hole, 35-Spring coil II. Detailed Implementation

[0026] The technical solution of this patent will be further described in detail below with reference to specific embodiments:

[0027] Example 1

[0028] Please see Figure 1-8 An automatic crimping device for automotive wiring harnesses includes a fixed frame 1, on which a support frame 22 is fixedly mounted. The fixed frame 1 has several slots I14 at equal intervals for placing the wiring harnesses 5. A guide frame 6 is fixed to the side wall of the fixed frame 1, and terminals 7 corresponding to the wiring harnesses 5 are slidably mounted on the guide frame 6. A horizontally arranged transmission plate 13 is mounted on the fixed frame 1, and several slots II15 at equal intervals are formed on the transmission plate 13. The shape of slots II15 is the same as that of slots I14, and the distance between two adjacent slots II15 is the same as the distance between two adjacent slots I14. Preferably, the eastern side of slots II15 and I14 is semi-circular to facilitate the stable placement of the wiring harnesses 5 on the fixed frame 1 and the transmission plate 13.

[0029] A pair of parallel limiting swing rods 16 are rotatably mounted on the bottom of the fixed frame 1. A traction bend rod 17 is hinged to the limiting swing rod 16. The middle of the traction bend rod 17 is hinged to the bottom of the transmission plate 13. The end of the traction bend rod 17 away from the limiting swing rod 16 is hinged to a rotating handle 18 driven by a dual-axis motor 20. A crossbar 19 parallel to the transmission plate 13 is hinged between the two traction bend rods 17. A lifting plate 4 is vertically and reciprocally slidably mounted on the support frame 22. A door-shaped pressing and pushing block 8 is fixed at the lower end of the lifting plate 4.

[0030] like Figure 3As shown, the dual-axis motor 20 can drive the rotating handle 18 to rotate. The rotating handle 18 drives the traction bending rod 17 to swing under the traction of the limiting swing rod 16, so that the traction bending rod 17 can drive the transmission plate 13 to move. The transmission plate 13 first moves upward and to the left, and then moves downward and to the right. This cycle is repeated to realize the step-to-the-left delivery of the wire harness 5 on the fixed frame 1 to the position vertically corresponding to the crimping push block 8, thus realizing the automatic delivery effect of the wire harness 5 and greatly improving the crimping operation efficiency of the wire harness 5 and the terminal 7.

[0031] A servo motor 3 is mounted on the support frame 22 of this device. The output shaft of the servo motor 3 is coaxially fixed to a rotating disk 2. A lifting plate 4, which is fixed to the pressing and pushing block 8, is vertically slidably mounted on the support frame 22. A pull rod 12 is hinged between the lifting plate 4 and the rotating disk 2. Both inner walls of the pressing and pushing block 8 are provided with wedge surfaces 25. A pair of lateral pressing wedges 9 located on both sides of the terminal 7 are slidably mounted on the guide frame 6. The lateral pressing wedges 9 are vertically aligned with the wedge surfaces 25. A vertical pressing block 27 is mounted on the pressing and pushing block 8. The vertical pressing block 27 is vertically aligned with the terminal 7. A feeding belt 10 for conveying the terminal 7 is provided on the guide frame 6.

[0032] The servo motor 3 can drive the rotating disk 2 to rotate, so that the rotating disk 2 can drive the lifting plate 4 to move vertically and reciprocally under the guidance of the support frame 22 through the pull rod 12, and perform crimping operation on the terminals 7 and wire harness 5 that move one by one to the crimping push block 8.

[0033] Among them, the bottom of the guide frame 6 is fixed with a partition plate 31, and guide rods 26 are fixed on both sides of the partition plate 31. A limiting sleeve plate 33, which is fixed to the lateral pressing wedge block 9, is sleeved on the guide rod 26. A return spring 32 is fixedly connected between the limiting sleeve plate 33 and the partition plate 31.

[0034] When the lifting plate 4 moves the pressing push block 8 downward, the pressing push block 8 pushes the lateral pressing wedge block 9 through the wedge surface 25. At this time, the two lateral pressing wedge blocks 9 move towards each other against the elastic force of the return spring 32, so as to laterally bend the terminal 7 and press it with the wire harness 5. When the pressing push block 8 moves upward, the two lateral pressing wedge blocks 9 are reset at the same time under the elastic restoring force of the return spring 32, so as to facilitate the next pressing operation of the terminal 7 and the wire harness 5.

[0035] Example 2

[0036] Please see Figure 1-8 In addition to embodiment 1, a guide post 29 is vertically fixed on the vertical pressing block 27. The guide post 29 slides vertically through the pressing push block 8. A spring ring I30 is fixedly connected between the pressing push block 8 and the vertical pressing block 27.

[0037] During the downward movement of the crimping push block 8, when the lateral crimping wedge block 9 slides to a point where it no longer abuts against the wedge surface 25, the vertical crimping block 27 presses against the laterally bent terminal 7, allowing the terminal 7 to deform vertically and tightly fix the wire harness 5, greatly ensuring the crimping stability of the terminal 7 and the wire harness 5.

[0038] In addition, a vertical sliding post 28 is vertically slidably installed on the pressing and pushing block 8. The lower end of the vertical sliding post 28 is fixed with a positioning arc block 21 that corresponds vertically to the wire harness 5. A spring ring II 35 is fixed between the pressing and pushing block 8 and the positioning arc block 21.

[0039] Before the crimping push block 8 and the lateral crimping wedge block 9 come into contact, the positioning arc block 21 first connects with the wire harness 5 and, under the elastic action of the spring ring II 35, clamps and fixes the wire harness 5, ensuring the stability of the position of the wire harness 5 when the terminal 7 is bent, greatly improving the crimping tightness between the terminal 7 and the wire harness 5.

[0040] In addition, three drive pulleys 11 are rotatably installed at the bottom of the guide frame 6. The drive pulleys 11 are connected to the feeding belt 10. A bevel gear 24 is coaxially fixed on the drive pulley 11. A dual-shaft motor 20 drives a partially meshed bevel gear 23 that intermittently meshes with the bevel gear 24. A strip hole 34 is opened on the guide frame 6, and the feeding belt 10 is placed in the strip hole 34.

[0041] When the dual-axis motor 20 drives the rotating handle 18 to rotate, the wire harness 5 can be conveyed in a step-by-step manner. At the same time, the dual-axis motor 20 drives the incomplete bevel gear 23 to rotate, and the incomplete bevel gear 23 drives the bevel gear 24 to rotate intermittently, so that the feeding belt 10 can convey the terminal 7 to the end of the wire harness 5 in a step-by-step manner. This means that once the crimping action is completed, the terminal 7 is automatically conveyed once. The output shaft of the servo motor 3 and the output shaft of the dual-axis motor 20 have the same rotation cycle, so that once the wire harness 5 moves in a step-by-step manner, the terminal 7 is automatically conveyed once, and then a crimping action is completed. This realizes that the conveying operation of the wire harness 5 and the terminal 7 and the crimping process are carried out automatically and orderly, which greatly improves the crimping operation efficiency of the wire harness 5 and the terminal 7.

[0042] In summary, the present invention, through the rotation of the rotating handle 18, enables the traction bending rod 17 to drive the transmission plate 13 to swing horizontally under the traction of the limiting swing rod 16. The transmission plate 13 drives the wire harness 5 on the fixed frame 1 to be conveyed stepwise towards the guide frame 6, so that the wire harness 5 can move one by one to the bottom of the pressing push block 8 to perform the pressing operation with the terminal 7, which greatly improves the pressing efficiency of the wire harness 5 and the terminal 7. The dual-axis motor 20 can drive the rotating handle 18 to rotate and drive the incomplete bevel gear 23 to rotate. The incomplete bevel gear 23 intermittently meshes with the bevel gear 24, so that the feeding belt 10 drives the terminal 7 to move stepwise to the corresponding wire harness 5, realizing the effect of automatic one-to-one matching of wire harness 5 and terminal 7. The pressing operation of wire harness 5 and terminal 7 is orderly and efficient.

[0043] In this invention, the pressing push block 8 reciprocates downward to achieve one-to-one pressing of paired wire harnesses 5 and terminals 7. When the pressing push block 8 abuts against the lateral pressing wedges 9, the two lateral pressing wedges 9 approach each other and bend the terminals 7 laterally. Subsequently, the vertical pressing block 27 vertically presses the terminals 7 during the downward movement, achieving sufficient bending deformation of the terminals 7 and ensuring a tight and reliable pressing operation between the terminals 7 and wire harnesses 5. After the pressing push block 8 moves upward, the vertical pressing block 27 and the lateral pressing wedges 9 automatically reset, eliminating the need for manual reset operation. This facilitates the pressing of the next pair of terminals 7 and wire harnesses 5, greatly improving the efficiency of the pressing operation and reducing the workload.

[0044] It should be noted that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above embodiments only illustrate preferred embodiments of this technical solution, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this technical solution patent. It should be pointed out that for those skilled in the art, several modifications, improvements, and substitutions can be made without departing from the concept of this invention, and these all fall within the protection scope of this technical solution. The protection scope of this technical solution patent should be determined by the appended claims.

Claims

1. An automatic crimping device for automotive wiring harnesses, comprising a fixed frame (1), on which a support frame (22) is fixedly mounted, and the fixed frame (1) has a plurality of slots I (14) at equal intervals for placing wiring harnesses (5), characterized in that, A guide frame (6) is fixed to the side wall of the fixed frame (1). A terminal (7) corresponding to the wire harness (5) is slidably installed on the guide frame (6). A horizontally arranged transmission plate (13) is installed on the fixed frame (1). Several slots II (15) are equally spaced on the transmission plate (13). A pair of parallel limit swing rods (16) are rotatably installed at the bottom of the fixed frame (1). A traction bend rod (17) is hinged to the limit swing rod (16). The middle part is hinged to the bottom of the transmission plate (13). The end of the traction bend (17) away from the limit swing rod (16) is hinged to a handle (18) driven by a dual-axis motor (20). A crossbar (19) parallel to the transmission plate (13) is hinged between the two traction bends (17). A lifting plate (4) is vertically and reciprocally slidably installed on the support frame (22). A door-shaped pressing and pushing block (8) is fixed at the lower end of the lifting plate (4). The two pressing and pushing blocks (8) are connected to each other. Each inner wall is provided with a wedge surface (25). A pair of lateral pressing wedges (9) located on both sides of the terminal (7) are slidably installed on the guide frame (6). The lateral pressing wedges (9) are vertically aligned with the wedge surface (25). A vertical pressing block (27) is installed on the pressing push block (8). The vertical pressing block (27) is vertically aligned with the terminal (7). A feeding belt (10) for conveying the terminal (7) is provided on the guide frame (6). The shape of the slot II (15) is similar to... The slots I (14) have the same shape, and the distance between two adjacent slots II (15) is the same as the distance between two adjacent slots I (14). Three transmission pulleys (11) are rotatably installed at the bottom of the guide frame (6). The transmission pulleys (11) are connected to the feeding belt (10). A bevel gear (24) is coaxially fixed on the transmission pulley (11). The dual-axis motor (20) drives and connects to an incomplete bevel gear (23) that intermittently meshes with the bevel gear (24).

2. The automatic crimping equipment for automotive wiring harnesses according to claim 1, characterized in that, A servo motor (3) is installed on the support frame (22). The output shaft of the servo motor (3) is coaxially fixed with a rotating disk (2). A lifting plate (4) fixed to the pressing and pushing block (8) is vertically slidably installed on the support frame (22). A pull rod (12) is hinged between the lifting plate (4) and the rotating disk (2).

3. The automatic crimping equipment for automotive wiring harnesses according to claim 1, characterized in that, The bottom of the guide frame (6) is fixed with a partition plate (31), and guide rods (26) are fixed on both sides of the partition plate (31). A limiting sleeve plate (33) that is fixed to the lateral pressing wedge block (9) is sleeved on the guide rod (26). A reset spring (32) is fixedly connected between the limiting sleeve plate (33) and the partition plate (31).

4. The automatic crimping equipment for automotive wiring harnesses according to claim 1, characterized in that, A guide post (29) is vertically fixed on the vertical pressing block (27). The guide post (29) slides vertically through the pressing and pushing block (8). A spring ring I (30) is fixedly connected between the pressing and pushing block (8) and the vertical pressing block (27).

5. An automatic crimping device for automotive wiring harnesses according to any one of claims 1-4, characterized in that, A vertical sliding column (28) is vertically slidably installed on the pressing and pushing block (8). A positioning arc block (21) corresponding vertically to the wire harness (5) is fixed at the lower end of the vertical sliding column (28). A spring ring II (35) is fixed between the pressing and pushing block (8) and the positioning arc block (21).

6. The automatic crimping equipment for automotive wiring harnesses according to claim 1, characterized in that, The guide frame (6) has a strip hole (34), and the feeding belt (10) is disposed in the strip hole (34).

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