A wire harness connector, production equipment and process

Abstract

This invention relates to the field of wire harness connectors, and more particularly to a wire harness connector, production equipment, and process thereof. The wire harness connector includes a cylindrical housing and conductive pins. A connecting portion is integrally formed on the inner side of the cylindrical housing. The conductive pins are injection molded inside the connecting portion. The conductive pins are cylindrical in shape, with both ends located on the outer side of the connecting portion. Several conductive pins are arranged and distributed at equal angles relative to the connecting portion. A connecting hole is provided in the middle of each conductive pin, located inside the connecting portion. This wire harness connector, production equipment, and process, through the coordinated action of a feeding device, a pushing device, and a driving device, achieves automatic feeding and positioning of the conductive pins, enabling the installation of multiple conductive pins at once, greatly improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of wire harness connectors, specifically to a wire harness connector, manufacturing equipment, and process. Background Technology

[0002] Some wire harness connectors commonly employ a stepped conductive pin design to ensure stable connection between the conductive pins and the connector's injection-molded housing, with the stepped portion encapsulated within the housing. However, this design presents certain challenges during manufacturing. To ensure accurate and stable insertion of the conductive pins into the mold, a dedicated vibratory feeder combined with a robotic arm is typically required, or manual insertion of each pin individually is necessary. This manufacturing method becomes particularly cumbersome and inefficient when the wire harness connector requires multiple conductive pins. Whether using a vibratory feeder combined with a robotic arm or manual operation, each conductive pin must be processed individually, significantly increasing processing time and costs, and reducing production efficiency.

[0003] Therefore, we propose a wire harness connector, manufacturing equipment, and process to solve the above problems. Summary of the Invention

[0004] To solve the above-mentioned technical problems, the present invention provides a wire harness connector, production equipment and process thereof.

[0005] The present invention provides a wire harness connector, comprising a cylindrical shell and conductive pins. The inner side of the cylindrical shell is integrally provided with a connecting part. The conductive pins are injection molded inside the connecting part. The conductive pins are cylindrical in shape, with both ends of the conductive pins located on the outer side of the connecting part. A plurality of conductive pins are provided and are distributed at equal angles relative to the connecting part. A connecting hole is provided in the middle of the conductive pins and is located inside the connecting part.

[0006] Preferably, one end of the conductive pin is provided with a rounded corner, and the other end of the conductive pin is provided with a radial through hole and an axial mounting groove, and the through hole communicates with the mounting groove. The outer wall of the cylindrical shell is provided with a mounting plate, and the mounting plate is provided with mounting holes.

[0007] Preferably, one end of the cylindrical shell is stepped, the length of the conductive pin is less than the length of the cylindrical shell, and both ends of the cylindrical shell are chamfered.

[0008] Also provided is a wire harness connector manufacturing equipment, including a base plate, a moving mold, a fixed mold, a vertical plate, and a mold opening and closing cylinder. The fixed mold and the vertical plate are fixedly fixed on the top of the base plate. The vertical plate and the fixed mold are connected by four guide rods. The moving mold is slidably mounted on the guide rods. The mold opening and closing cylinder is fixedly fixed on one side of the vertical plate. The output shaft of the mold opening and closing cylinder is fixedly connected to the moving mold. The fixed mold is provided with a through hole for installing conductive pins, and the through hole extends into the mold cavity of the fixed mold. The base plate is equipped with a feeding device for inserting conductive pins into the through hole.

[0009] Preferably, the feeding device includes a first mounting base and a second mounting base fixed on the base plate. A rotating shaft is rotatably connected between the first mounting base and the second mounting base via a bearing. The rotating shaft has protrusions at both ends. The side wall of the rotating shaft is provided with a receiving groove at an equal angle between the two protrusions for accommodating conductive pins, and both ends of the receiving groove extend to the end of the rotating shaft. A hopper for holding conductive pins is fixed between the first mounting base and the second mounting base. The hopper is provided with a discharge port for discharging one conductive pin at a time. The base plate is equipped with a pushing device for conveying the conductive pins in the receiving groove to the insertion hole and a driving device for driving the rotating shaft to rotate.

[0010] Preferably, the pushing device includes a third mounting base fixed to the top of the base plate, a pushing cylinder fixed on the third mounting base, a rotating rod rotatably connected to the output shaft of the pushing cylinder, a push rod fixed to the end of the rotating rod away from the pushing cylinder, and the push rod slidably connected in the receiving groove.

[0011] Preferably, the driving device includes a column fixed to the top of the base plate, a guide rod fixed to the top of the column, a spiral groove and a straight groove on the side wall of the rotating roller, one end of the straight groove and the spiral groove are connected, and the end of the guide rod cooperates with the spiral groove and the straight groove.

[0012] Preferably, the hopper includes a V-shaped portion and an arc-shaped portion sleeved on the outer wall of the rotating shaft, and the arc-shaped portion is in contact with the side wall of the rotating shaft.

[0013] Preferably, when a conductive pin is located in the receiving groove, the sidewall of the conductive pin is tangent to the sidewall of the rotating shaft.

[0014] Preferably, the spiral groove has one ring.

[0015] Preferably, the diameter of the push rod is equal to the diameter of the conductive pin.

[0016] A processing technology for wire harness connector manufacturing equipment is also provided, including the following steps:

[0017] S1: Conductive pin delivery

[0018] The rotating roller and push rod are moved together by the push cylinder. Since the end of the guide rod is engaged with the spiral groove and the straight groove, the guide rod is initially located in the spiral groove. When the rotating roller moves relative to the base plate, the rotating roller will rotate under the restriction of the guide rod. Under the action of gravity, the rotating shaft will also rotate as the rotating roller rotates. A conductive pin will be installed in each of the receiving grooves. When the guide rod moves into the straight groove, the rotating roller and the rotating shaft will not continue to rotate. As the push rod continues to move forward, the conductive pin in the receiving groove is delivered to the insertion hole.

[0019] S2: One-piece injection molding of cylindrical shell, connectors and mounting plate

[0020] Injection molding is performed by closing the moving mold and the fixed mold, so that the cylindrical shell, the connecting part, the mounting plate and the conductive pin are injection molded together to form a wire harness connector;

[0021] S3: Open the mold and remove the wire harness connector

[0022] S4: Push cylinder retracts in the reverse direction

[0023] S5: Repeat steps S1-S4.

[0024] Compared with related technologies, the present invention provides the following beneficial effects:

[0025] The beneficial effects of wire harness connectors:

[0026] The conductive pin is encapsulated inside the connector by injection molding, and the connection hole is filled with injection molding material, which further improves the connection stability between the conductive pin and the connector and prevents loosening or falling off. The cylindrical shape of the conductive pin facilitates processing and transportation.

[0027] The beneficial effects of wire harness connector manufacturing equipment:

[0028] This production equipment achieves automatic delivery and positioning of conductive pins through the coordinated action of the feeding device, pushing device and driving device, and can install multiple conductive pins at one time, which greatly improves production efficiency. Attached Figure Description

[0029] Figure 1 This is one of the schematic diagrams of the wire harness connector structure of the present invention;

[0030] Figure 2 This is a second schematic diagram of the wire harness connector structure of the present invention;

[0031] Figure 3 This is a schematic diagram of the conductive pin structure of the present invention;

[0032] Figure 4 This is a schematic diagram of the wire harness connector manufacturing equipment of the present invention;

[0033] Figure 5 This is a schematic diagram of the rotating shaft structure of the present invention;

[0034] Figure 6 This is a schematic diagram of the hopper structure of the present invention;

[0035] Figure 7 This is a schematic diagram of the rotating roller structure of the present invention;

[0036] Figure 8 This is a process flow diagram of the wire harness connector manufacturing equipment of the present invention.

[0037] The diagram labels are as follows: 1. Cylindrical outer shell; 2. Conductive pin; 3. Connecting part; 4. Connecting hole; 5. Rounded corner; 6. Through hole; 7. Mounting groove; 8. Mounting plate; 9. Mounting hole; 10. Stepped shape; 11. Chamfer; 12. Base plate; 13. Moving mold; 14. Fixed mold; 15. Vertical plate; 16. Mold opening and closing cylinder; 17. Guide rod; 18. Through hole; 19. Feeding device; 20. First mounting seat; 21. Second mounting seat; 22. Rotating shaft; 23. Protrusion; 24. Receiving groove; 25. Hopper; 26. Discharge port; 27. Pushing device; 28. Drive device; 29. ​​Third mounting seat; 30. Pushing cylinder; 31. Rotating roller; 32. Push rod; 33. Column; 34. Guide rod; 35. Spiral groove; 36. Straight groove; 37. V-shaped part; 38. Arc-shaped part. Detailed Implementation

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] Please refer to the following: Figures 1 to 3 A wire harness connector mainly comprises a cylindrical shell 1 and conductive pins 2. The cylindrical shell 1, as the main structure of the connector, provides not only mechanical support but also protection. A connecting portion 3 is integrally formed inside the cylindrical shell 1, and the conductive pins 2 are encapsulated inside the connecting portion 3 using an injection molding process. This design ensures stable transmission of current or signals while improving the reliability and stability of the electrical connection.

[0040] The conductive pin 2 is cylindrical in shape, with both ends extending beyond the outer side of the connecting portion 3. To optimize the transmission efficiency of current or signal, several conductive pins 2 are provided, and they are distributed at equal angles relative to the connecting portion 3. Connecting holes 4 are also provided in the middle of the conductive pin 2, located inside the connecting portion 3. These holes 4 can be filled with injection molding material, further enhancing the connection stability between the connecting portion 3 and the conductive pin 2.

[0041] At one end of the conductive pin 2, we designed a rounded corner 5, which not only optimizes the appearance of the pin but also improves its safety during use. At the other end, a radial through hole 6 and an axial mounting groove 7 are provided. The through hole 6 and the mounting groove 7 are interconnected, which facilitates subsequent connection and fixation with other components.

[0042] On the outer side wall of the cylindrical housing 1, we added a mounting plate 8 with mounting holes 9, which allows the wire harness connector to be easily connected and fixed to other components through the mounting holes 9.

[0043] Furthermore, one end of the cylindrical housing 1 is designed as a stepped shape 10, and the length of the conductive pin 2 is less than the length of the cylindrical housing 1. Chamfers 11 are also provided at both ends of the cylindrical housing 1. This design not only optimizes the structure of the housing but also facilitates the installation and assembly process.

[0044] Please refer to the following: Figures 1 to 8 To efficiently produce this wire harness connector, we also provide a specialized wire harness connector production equipment. This equipment includes key components such as a base plate 12, a moving mold 13, a fixed mold 14, a vertical plate 15, and a mold opening / closing cylinder 16. The fixed mold 14 and the vertical plate 15 are fixed to the top of the base plate 12, and the vertical plate 15 and the fixed mold 14 are connected by four guide rods 17. The moving mold 13 is slidably mounted on the guide rods 17, and the mold opening / closing cylinder 16 is fixed to one side of the vertical plate 15. The output shaft of the mold opening / closing cylinder 16 is fixedly connected to the moving mold 13. On the fixed mold 14, we have provided insertion holes 18 for mounting conductive pins 2, and these insertion holes 18 extend into the cavity of the fixed mold 14.

[0045] To automatically insert the conductive pin 2 into the insertion hole 18, a feeding device 19 is installed on the base plate 12. The feeding device 19 mainly consists of a first mounting base 20 and a second mounting base 21, which are rotatably connected by a rotating shaft 22 via bearings. At both ends of the rotating shaft 22, protrusions 23 are provided to prevent the conductive pin 2 from slipping. On the side wall of the rotating shaft 22, receiving grooves 24 for accommodating the conductive pin 2 are provided at equal angles between the two protrusions 23, with both ends of these receiving grooves 24 extending to the ends of the rotating shaft 22.

[0046] Between the first mounting base 20 and the second mounting base 21, a hopper 25 for holding the conductive pins 2 is also fixed. The hopper 25 is provided with a discharge port 26, which can only discharge one conductive pin 2 at a time. In order to ensure that the conductive pin 2 can be accurately fed into the insertion hole 18, a pushing device 27 and a driving device 28 are also installed on the base plate 12.

[0047] The pushing device 27 mainly consists of a third mounting base 29, a pushing cylinder 30, a rotating roller 31, and a push rod 32. The third mounting base 29 is fixed to the top of the base plate 12, and the pushing cylinder 30 is fixed on it. The output shaft of the pushing cylinder 30 is rotatably connected to the rotating roller 31, and the end of the rotating roller 31 away from the pushing cylinder 30 is fixed with the push rod 32. The push rod 32 is slidably connected in the receiving groove 24, and its diameter is equal to the diameter of the conductive pin 2 to ensure that the conductive pin 2 can be smoothly pushed into the insertion hole 18.

[0048] The drive unit 28 mainly consists of a column 33 and a guide rod 34. The column 33 is fixed to the top of the base plate 12, and the guide rod 34 is fixed on it. The side wall of the rotating roller 31 is provided with a spiral groove 35 and a straight groove 36, and the straight groove 36 is connected to one end of the spiral groove 35. The end of the guide rod 34 cooperates with the spiral groove 35 and the straight groove 36 to ensure that the rotating roller 31 can rotate and move according to a predetermined trajectory during the pushing process.

[0049] The design of the hopper 25 is also very ingenious. It includes a V-shaped part 37 and an arc-shaped part 38 fitted on the outer wall of the rotating shaft 22. The arc-shaped part 38 is in close contact with the side wall of the rotating shaft 22, which serves to seal the receiving groove 24 and ensure that only one conductive pin 2 can be accommodated in each receiving groove 24.

[0050] In the processing technology of this wire harness connector manufacturing equipment, we adopted the following steps:

[0051] S1: Conveying the conductive pins. The conductive pins 2 are placed in the hopper 25 in the same direction, and the rotating roller 31 and push rod 32 are moved together by the push cylinder 30. Due to the interaction between the end of the guide rod 34 and the spiral groove 35 and straight groove 36, the rotating roller 31 rotates during its movement relative to the base plate 12, thereby driving the rotating shaft 22 to rotate. Under the action of gravity, one conductive pin 2 is loaded into each receiving slot 24. When the guide rod 34 moves into the straight groove 36, the rotating roller 31 and rotating shaft 22 stop rotating. As the push rod 32 continues to move forward, the conductive pins 2 in the receiving slots 24 are accurately conveyed into the insertion holes 18.

[0052] S2: Integral injection molding of cylindrical housing 1, connecting part 3 and mounting plate 8. Injection molding is performed by closing the moving mold 13 and the fixed mold 14, so that the cylindrical housing 1, connecting part 3, mounting plate 8 and conductive pin 2 are tightly injection molded together to form a complete wire harness connector.

[0053] S3: Open the mold and remove the wire harness connector. After injection molding is complete, open the mold and remove the finished wire harness connector.

[0054] S4: The push cylinder 30 retracts in the reverse direction. This prepares for the next processing cycle.

[0055] S5: Repeat steps S1-S4 for continuous production operations.

[0056] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A wire harness connector manufacturing equipment, wherein the wire harness connector includes a cylindrical shell (1) and conductive pins (2), the inner side of the cylindrical shell (1) is integrally provided with a connecting part (3), the conductive pins (2) are injection molded inside the connecting part (3), the conductive pins (2) are cylindrical in shape, both ends of the conductive pins (2) are provided on the outer side of the connecting part (3), a plurality of conductive pins (2) are provided, and the conductive pins (2) are distributed at equal angles relative to the connecting part (3), and a connecting hole (4) is provided in the middle of the conductive pins (2), and the connecting hole ( 4) Located inside the connecting part (3); one end of the conductive pin (2) is provided with a rounded corner (5), and the other end of the conductive pin (2) is provided with a radial through hole (6) and an axial mounting groove (7), and the through hole (6) communicates with the mounting groove (7). The outer wall of the cylindrical shell (1) is provided with a mounting plate (8), and the mounting plate (8) is provided with a mounting hole (9); one end of the cylindrical shell (1) is stepped (10), the length of the conductive pin (2) is less than the length of the cylindrical shell (1), and both ends of the cylindrical shell (1) are provided with chamfers (11). Its features are, The system includes a base plate (12), a moving mold (13), a fixed mold (14), a vertical plate (15), and a mold opening and closing cylinder (16). The top of the base plate (12) is fixed with the fixed mold (14) and the vertical plate (15). The vertical plate (15) and the fixed mold (14) are connected by four guide rods (17). The moving mold (13) is slidably mounted on the guide rods (17). The mold opening and closing cylinder (16) is fixed on one side of the vertical plate (15). The output shaft of the mold opening and closing cylinder (16) is fixedly connected to the moving mold (13). The fixed mold (14) is provided with an insertion hole (18) for installing conductive pins (2), and the insertion hole (18) extends to the mold cavity of the fixed mold (14). The base plate (12) is equipped with a feeding device (19) for inserting conductive pins (2) into the insertion hole (18). The feeding device (19) includes a first mounting base (20) and a second mounting base (21) fixed on the base plate (12). A rotating shaft (22) is rotatably connected between the first mounting base (20) and the second mounting base (21) via a bearing. The rotating shaft (22) has protrusions (23) at both ends. The side wall of the rotating shaft (22) between the two protrusions (23) has a receiving groove (24) at an equal angle for accommodating the conductive pin (2). Both ends of the receiving groove (24) extend... Extending to the end of the rotating shaft (22), a hopper (25) for holding conductive pins (2) is fixed between the first mounting base (20) and the second mounting base (21). The hopper (25) is provided with an outlet (26) for discharging one conductive pin (2) at a time. The base plate (12) is equipped with a pushing device (27) for conveying the conductive pins (2) in the receiving groove (24) to the insertion hole (18) and a driving device (28) for driving the rotating shaft (22) to rotate. The pushing device (27) includes a third mounting base (29) fixed on the top of the base plate (12), a pushing cylinder (30) fixed on the third mounting base (29), a rotating rod (31) rotatably connected to the output shaft of the pushing cylinder (30), a push rod (32) fixed at the end of the rotating rod (31) away from the pushing cylinder (30), and the push rod (32) slidably connected in the receiving groove (24); The drive device (28) includes a column (33) fixed to the top of the base plate (12), a guide rod (34) fixed to the top of the column (33), a spiral groove (35) and a straight groove (36) provided on the side wall of the rotating rod (31), and the straight groove (36) is connected to one end of the spiral groove (35), and the end of the guide rod (34) is engaged with the spiral groove (35) and the straight groove (36).

2. The production equipment according to claim 1, characterized in that, The hopper (25) includes a V-shaped part (37) and an arc-shaped part (38) sleeved on the outer wall of the rotating shaft (22), and the arc-shaped part (38) is in contact with the side wall of the rotating shaft (22).

3. The production equipment according to claim 1, characterized in that, When a conductive pin (2) is located in the receiving groove (24), the side wall of the conductive pin (2) is tangent to the side wall of the rotating shaft (22).

4. The production equipment according to claim 1, characterized in that, The spiral groove (35) has one ring.

5. The production equipment according to claim 1, characterized in that, The diameter of the push rod (32) is equal to the diameter of the conductive pin (2).

6. A method of using the production equipment according to any one of claims 1-5, comprising the following steps: S1: Delivery of conductive pin (2) The rotating roller (31) and the push rod (32) are moved together by the push cylinder (30) to deliver the conductive pin (2) in the receiving groove (24) to the insertion hole (18); S2: One-piece injection molding of cylindrical shell (1), connecting part (3) and mounting plate (8) Injection molding is performed by closing the moving mold (13) and the fixed mold (14) to form a wire harness connector by injection molding the cylindrical shell (1), the connecting part (3), the mounting plate (8) and the conductive pin (2) together; S3: Open the mold and remove the wire harness connector S4: Push cylinder (30) retracts in the reverse direction S5: Repeat steps S1-S4.

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