A device and method for connecting a multi-strand wire to a terminal sleeve

Abstract

The application relates to the field of transformer lead manufacturing, and particularly provides a device and method for connecting a multi-strand lead wire and a terminal sleeve, which comprises an operation platform, a terminal feeding assembly, a lead wire guiding assembly, a terminal positioning and clamping assembly and a terminal crimping assembly are arranged on the operation platform, the lead wire guiding assembly, the terminal positioning and clamping assembly and the terminal crimping assembly are sequentially arranged from front to back according to production procedures, the terminal feeding assembly is located on the side of the terminal positioning and clamping assembly, the terminal feeding assembly comprises a sorting table and a feeding table, the feeding table comprises a feeding end and a discharging end, a mechanical hand capable of moving between the feeding end and the discharging end and conveying the terminal from the sorting table to the terminal positioning and clamping assembly is slidably arranged on the feeding table, and a guiding sleeve coaxial with the terminal clamped in the terminal positioning and clamping assembly is arranged in the lead wire guiding assembly. The application can realize automatic and continuous production of the processes of lead wire end shaping, terminal sorting, insertion of the terminal and the lead wire, terminal crimping and the like in lead manufacturing.

Description

Technical Field

[0001] This invention relates to the field of transformer lead manufacturing, and more particularly to a device and method for connecting multi-strand wires to terminals. Background Technology

[0002] A transformer is a device that uses the principle of electromagnetic induction to change alternating current voltage. It is a fundamental piece of equipment for power transmission and distribution and has been widely used in industry, agriculture, transportation, urban communities, and other fields. Transformer leads are the wires that connect the internal coils of the transformer to the external circuit. Their function is to connect the high-voltage and low-voltage coils of the transformer to the power source or load. Transformer leads are usually made of copper or aluminum, which have good conductivity and strength.

[0003] The production of transformer leads typically involves multiple processes, including terminal sorting, feeding, positioning, shaping and tightening the ends of multi-strand wires, inserting the multi-strand wires into the terminal holes, and crimping the terminals. Existing lead production equipment can only automate some processes for small single-strand wires. The processes of wire end shaping, terminal sorting and insertion with the wires, and terminal crimping can only be completed manually by workers. Manual production is inefficient, labor-intensive, has a long production cycle, requires a large area, and makes it difficult to effectively shape the terminals. Improper shaping can easily lead to situations where the wires cannot be inserted.

[0004] In summary, designing a device and method for connecting multi-strand wires to terminals, enabling automated and continuous production of processes such as wire end shaping, terminal sorting and insertion with wires, and terminal crimping, to avoid various problems in existing technologies, is an urgent issue that needs to be addressed. Summary of the Invention

[0005] To solve the above problems, the present invention provides a device and method for connecting multi-strand wires to terminals, which can improve production efficiency and realize automatic continuous production of wire end shaping, terminal sorting and insertion with wires, and terminal crimping in wire manufacturing.

[0006] To achieve the above objectives, the present invention proposes the following technical solution: a device for connecting multi-strand wires to terminals, comprising an operating platform, wherein the operating platform is provided with a terminal feeding assembly, a wire guiding assembly, a terminal positioning and clamping assembly, and a terminal crimping assembly; the wire guiding assembly, the terminal positioning and clamping assembly, and the terminal crimping assembly are arranged sequentially from front to back according to the production process, and the terminal feeding assembly is located to the side of the terminal positioning and clamping assembly; the terminal feeding assembly includes a sorting table and a feeding table, the feeding table including a feeding end and a discharging end, the feeding end being located above the discharge point of the sorting table, and the discharging end being located above the terminal positioning and clamping assembly, and a robotic arm that can move between the feeding end and the discharging end and transport the terminals from the sorting table to the terminal positioning and clamping assembly is slidably arranged on the feeding table; the wire guiding assembly is provided with a guide sleeve coaxial with the terminals clamped in the terminal positioning and clamping assembly.

[0007] Furthermore, the sorting station includes a sorting box and a spiral array plate located inside the sorting box. The upper part of the sorting box has a discharge port on one side of the loading platform. The robot arm picks up the terminal from the discharge port and transports it to the terminal positioning and clamping assembly.

[0008] Furthermore, the upper discharge line of the vibratory feeder extends from the discharge port to the outside of the sorting box and forms a discharge trough located outside the sorting box, with the discharge trough located below the feeding end.

[0009] Furthermore, the discharge trough includes side limiting plates located on both sides and a top limiting plate connected between the outer ends of the side limiting plates and located at the outermost end of the discharge trough; the outermost terminal inside the vibrating plate is arranged close to the top limiting plate.

[0010] Furthermore, a clamping groove is provided on the side limiting plate near the top limiting plate; at least two terminals are queuing up at the discharge port to clamp and feed the material.

[0011] Furthermore, the upper end of the robot arm is provided with a horizontal drive component that drives the robot arm to move vertically and to grip or release the terminals, and the end of the loading platform is provided with a vertical drive component that drives the robot arm and the horizontal drive component to move horizontally as a whole to transport the terminals between the loading end and the unloading end.

[0012] Furthermore, the inner end face of the guide sleeve is a conical structure that slopes downward from the wire feeding direction toward the terminal positioning and clamping assembly; the inner diameter of the inner end face of the guide sleeve near the terminal is smaller than the outer diameter of the terminal near the guide sleeve.

[0013] Furthermore, the guide sleeve is provided with a guide seat, the guide seat is provided with a positioning hole, and a positioning groove matching the positioning hole is opened on the outer circumferential surface of the guide sleeve. A positioning pin is provided in the positioning hole and the positioning groove, and the width of the positioning groove is greater than the outer diameter of the positioning pin.

[0014] Furthermore, the terminal positioning and clamping assembly includes a fixed seat and a movable seat arranged opposite to each other. The movable seat is located on the side closer to the terminal feeding assembly and can slide horizontally toward or away from the fixed seat. The inner end faces of the fixed seat and the movable seat are provided with clamping grooves for clamping the terminals.

[0015] A method for connecting multi-strand wires to terminals, comprising connecting multi-strand wires of transformer leads to terminals using the aforementioned device, including the following steps:

[0016] S1: The wire is fed into the guide sleeve along the production direction, and the inner end face of the guide sleeve is shaped and tightened at the end of the wire;

[0017] S2: Pour the terminals of the corresponding specifications into the vibratory feeder, turn on the vibratory feeder, and the vibratory feeder will sort the terminals in a certain order and send them to the discharge port. At least two terminals are lined up in the prescribed direction at the discharge port, and the terminal on the outer side is close to the top limit plate of the discharge trough.

[0018] S3: The robot arm grips a terminal in the discharge chute and transports it to the unloading end. The terminal falls into the clamping slot of the terminal positioning and clamping assembly, and the robot arm resets to the loading end.

[0019] S4: The fixed seat and movable seat of the terminal positioning and clamping assembly accurately position and clamp the terminal, ensuring that the terminal is coaxial with the guide sleeve;

[0020] S5: The wire is guided through the tapered surface of the guide sleeve and then inserted into the inner hole of the terminal;

[0021] S6: After the insertion depth of the terminal meets the parameter requirements, the fixed seat and the movable seat are released, and the wire, along with the terminal, enters the terminal crimping assembly, and the terminal crimping assembly begins to work.

[0022] S7: The crimped wire continues to the next process.

[0023] The beneficial effects of this invention are as follows: This solution can shape, tighten, and guide the wire ends using a guiding component; position and clamp the terminals using a positioning and clamping component; sort and transport the terminals into the positioning and clamping component using a terminal feeding component; and crimp the terminals and wires using a terminal crimping component. This invention can reduce the difficulty of shaping and realize automated continuous production of wire end shaping, terminal sorting and insertion with wires, and terminal crimping processes in lead wire manufacturing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the device provided in the embodiment of the present invention.

[0025] Figure 2 This is a partial structural diagram of the device provided in the embodiment of the present invention. Figure 1 .

[0026] Figure 3 This is a partial structural diagram of the device provided in the embodiment of the present invention. Figure 2 (The top cover of the sorting box is not shown).

[0027] Figure 4 This is a schematic diagram of the overall structure of the guide component provided in an embodiment of the present invention.

[0028] Figure 5 This is a cross-sectional structural diagram of the guide component provided in an embodiment of the present invention.

[0029] Reference numerals: 1. Operating platform; 2. Terminal feeding assembly; 3. Wire guiding assembly; 4. Terminal positioning and clamping assembly; 5. Terminal crimping assembly; 6. Sorting table; 7. Feeding table; 8. Feeding end; 9. Unloading end; 10. Robotic arm; 11. Guide sleeve; 12. Vibrating plate; 13. Discharge port; 14. Side limiting plate; 15. Top limiting plate; 16. Clamping groove; 17. Inner hole end face; 18. Fixed seat; 19. Movable seat; 20. Clamping groove; 21. Horizontal drive component; 22. Vertical drive component; 23. Guide seat; 24. Upper discharge line; 25. Sorting box; 26. Discharge groove; 27. Positioning hole; 28. Positioning groove. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this invention clearer, the following description is provided in conjunction with the appendix. Figure 1-5 The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and do not constitute a limitation thereof.

[0031] A device for connecting multi-strand wires to terminals includes an operating platform 1. The operating platform 1 is equipped with a terminal feeding assembly 2, a wire guiding assembly 3, a terminal positioning and clamping assembly 4, and a terminal crimping assembly 5. The terminal feeding assembly 2 sorts and conveys terminals to the terminal positioning and clamping assembly 4. The wire guiding assembly 3 shapes, tightens, and guides the ends of the wires. The terminal positioning and clamping assembly 4 positions and clamps the terminals. The terminal crimping assembly 5 crimps the terminals and wires. The wire guiding assembly 3, the terminal positioning and clamping assembly 4, and the terminal crimping assembly 5 are arranged sequentially from front to back according to the production process. The terminal feeding assembly 2 is located to the side of the terminal positioning and clamping assembly 4. The wires are shown as L in diagram 1, and the terminals are shown as D in diagram 2.

[0032] like Figure 2As shown, the wire guiding assembly 3 has a guide sleeve 11 inside, and a guide seat 23 is provided on the outer side of the guide sleeve 11. The guide sleeve 11 is coaxially arranged with the terminal clamped in the terminal positioning and clamping assembly 4. The inner hole end face 17 of the guide sleeve 11 is a conical structure that slopes downward from the wire feeding direction toward the terminal positioning and clamping assembly 4. This arrangement can shape the end of the wire, automatically tighten the wire, and guide the wire into the terminal, improving the coaxiality between the wire and the terminal. The inner diameter of the inner hole end face 17 of the guide sleeve 11 near the terminal is smaller than the outer diameter of the terminal near the guide sleeve 11, further facilitating the insertion of the wire into the terminal and improving the coaxiality between the guide and the terminal. Figure 4 , 5 As shown, the guide seat 23 is provided with a positioning hole 27, and the outer circumferential surface of the guide sleeve 11 is provided with a positioning groove 28 that matches the positioning hole 27. The guide sleeve 11 is limited by installing a positioning pin in the positioning hole 27 and the positioning groove 28. Furthermore, the width of the positioning groove 28 is greater than the outer diameter of the positioning pin. While ensuring that the positioning pin has a positioning function for the guide sleeve 11, it also allows the guide sleeve 11 to have a space to move towards the terminal when the wire is inserted into the terminal hole, which helps the wire to be inserted into the terminal hole and further improves the coaxiality when the wire is inserted into the terminal hole. It also allows the guide sleeve 11 to have a space to move away from the terminal when the wire is retracted after one round of processing, which can prevent the guide sleeve 11 from interfering with the next terminal falling into the positioning clamping assembly 6.

[0033] The terminal positioning and clamping assembly 4 includes a fixed base 18 and a movable base 19 disposed opposite to each other. The movable base 19 is located on the side closer to the terminal feeding assembly 2. The movable base 19 can slide horizontally toward or away from the fixed base 18. The inner end faces of the fixed base 18 and the movable base 19 are provided with clamping grooves 20 for clamping terminals. When a terminal is to be inserted, the movable base 19 is moved away from the fixed base 18. After the terminal falls in, the movable base 19 is moved toward the fixed base 18 to clamp the terminal. At the same time, both the movable base 19 and the fixed base 18 can be disassembled and replaced.

[0034] like Figure 2 , 3As shown, the terminal loading assembly 2 includes a sorting table 6 and a loading table 7. The loading table 7 includes a loading end 8 and a unloading end 9. The loading end 8 is located above the discharge port of the sorting table 6, and the unloading end 9 is located above the terminal positioning and clamping assembly 4. A robot arm 10 is slidably mounted on the loading table 7. The robot arm 10 can move between the loading end 8 and the unloading end 9 and transport the terminals from the sorting table 6 to the terminal positioning and clamping assembly 4, where the terminals fall into the clamping groove 20. The sorting table 6 includes a sorting box 25 and a spiral array 12 disposed in the sorting box 25. The upper part of the sorting box 25 is provided with a discharge port 13 on one side of the loading table 7. The robot arm 10 clamps the terminals from the discharge port 13 and transports them to the terminal positioning and clamping assembly 4. The upper discharge line 24 of the vibrating plate 12 extends from the discharge port 13 to the outside of the sorting box 25 and forms a discharge trough 26 located outside the sorting box 25. The discharge trough 26 is located below the feeding end 8.

[0035] The discharge trough 26 includes side limiting plates 14 located on both sides and a top limiting plate 15 connected between the outer ends of the side limiting plates 14 and located at the outermost end of the discharge trough 26. The vibrating plate 12 can sort and send the terminals to the discharge port 13 in a certain order, ensuring that at least two terminals are lined up in the discharge trough 26 in a specified direction, with one of the outer terminals close to the top limiting plate 15, waiting to be picked up by the robot arm 10. The side limiting plates 14 have a gripping slot 16 near the top limiting plate 15. The robot arm 10 grips the terminals from the gripping slot 16, and at least two terminals are lined up at the discharge port 13 waiting to be gripped and fed. The upper end of the robot arm 10 is provided with a horizontal drive member 21 that drives the robot arm 10 to move vertically and grips or releases the terminals. The end of the loading platform 7 is provided with a vertical drive member 22 that drives the robot arm 10 and the horizontal drive member 21 to move horizontally as a whole to transport the terminals between the loading end 8 and the unloading end 9.

[0036] A method for connecting multi-strand wires to terminals, comprising connecting multi-strand wires of transformer leads to terminals using the aforementioned device, including the following steps:

[0037] S1: The wire is fed into the guide sleeve 11 along the production direction. The inner hole end face 17 of the tapered structure of the guide sleeve 11 shapes and tightens the end of the wire.

[0038] S2: Pour the terminals of the corresponding specifications into the vibratory feeder 12, turn on the vibratory feeder 12, and the vibratory feeder 12 sorts and sends the terminals to the discharge port 13 in a certain order. At least two terminals are lined up in the prescribed direction at the discharge port 13. The terminals are lined up at the upper discharge line 24 and the discharge trough 26, and the terminal on the outside is close to the top limit plate 15 of the discharge trough 26.

[0039] S3: The horizontal drive unit 21 drives the robot arm 10 to move downward and clamp a terminal in the discharge groove 26. The vertical drive unit 22 drives the robot arm 10 to move horizontally and transport the terminal to the unloading end 9. The horizontal drive unit 21 drives the robot arm 10 to release the terminal. The terminal falls into the clamping groove 20 of the terminal positioning clamping assembly 4. The robot arm 10 returns to the loading end 8.

[0040] S4: The fixed seat 18 and movable seat 19 of the terminal positioning and clamping assembly 4 accurately position and clamp the terminal, ensuring that the terminal is coaxial with the guide sleeve 11;

[0041] S5: The wire is guided through the tapered surface of the guide sleeve 11 and then inserted into the inner hole of the terminal;

[0042] S6: After the insertion depth of the terminal meets the parameter requirements, the fixed seat 18 and the movable seat 19 are released, and the wire and the terminal enter the terminal crimping assembly 5 together, and the terminal crimping assembly 5 starts to work.

[0043] S7: The crimped wire continues to the next process.

[0044] Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0045] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A device for connecting multi-strand wires to terminals, comprising an operating platform (1), characterized in that, The operating platform (1) is equipped with a terminal feeding assembly (2), a wire guiding assembly (3), a terminal positioning and clamping assembly (4), and a terminal crimping assembly (5). The wire guiding assembly (3), the terminal positioning and clamping assembly (4), and the terminal crimping assembly (5) are arranged sequentially from front to back according to the production process. The terminal feeding assembly (2) is located to the side of the terminal positioning and clamping assembly (4). The terminal feeding assembly (2) includes a sorting table (6) and a feeding table (7). The feeding table (7) includes a feeding end (8) and a discharging end (9). The feeding end (8) is located above the discharge point of the sorting table (6), and the discharging end (9) is located above the terminal positioning and clamping assembly (4). The feeding table (7) is slidably equipped with a device that can move between the feeding end (8) and the discharging end (9) and transport the terminals from the sorting table (6) to the terminal positioning and clamping assembly. The robot arm (10) on the component (4); the wire guide assembly (3) is provided with a guide sleeve (11) coaxial with the terminal clamped in the terminal positioning clamping assembly (4); the inner hole end face (17) of the guide sleeve (11) is a conical structure that is inclined downward from the wire feeding direction toward the terminal positioning clamping assembly (4); the inner diameter of the inner hole end face (17) of the guide sleeve (11) near the terminal is smaller than the outer diameter of the terminal near the guide sleeve (11); the guide sleeve (11) is provided with a guide seat (23), the guide seat (23) is provided with a positioning hole (27), the outer circumferential surface of the guide sleeve (11) is provided with a positioning groove (28) matching the positioning hole (27), the positioning hole (27) and the positioning groove (28) are provided with positioning pins, and the width of the positioning groove (28) is greater than the outer diameter of the positioning pin.

2. The device for connecting multi-strand wires to terminals according to claim 1, characterized in that, The sorting station (6) includes a sorting box (25) and a spiral vibrating plate (12) located inside the sorting box (25). The upper part of the sorting box (25) is provided with a discharge port (13) on one side of the loading station (7). The robot (10) picks up the terminal from the discharge port (13) and transports it to the terminal positioning clamping assembly (4).

3. The device for connecting multi-strand wires to terminals according to claim 2, characterized in that, The upper discharge line (24) of the vibrating plate (12) extends from the discharge port (13) to the outside of the sorting box (25) and forms a discharge trough (26) located outside the sorting box (25), with the discharge trough (26) located below the feeding end (8).

4. The device for connecting multi-strand wires to terminals according to claim 3, characterized in that, The discharge trough (26) includes side limiting plates (14) located on both sides and a top limiting plate (15) connected between the outer ends of the side limiting plates (14) and located at the outermost end of the discharge trough (26); the outermost terminal of the vibrating plate (12) is arranged close to the top limiting plate (15).

5. The device for connecting multi-strand wires to terminals according to claim 4, characterized in that, The side limiting plate (14) has a clamping groove (16) near the top limiting plate (15); at least two terminals are waiting in line at the discharge port (13) to clamp and feed the material.

6. The device for connecting multi-strand wires to terminals according to claim 5, characterized in that, The upper end of the robotic arm (10) is provided with a horizontal drive (21) to drive the robotic arm (10) to move vertically and to clamp or release the terminal. The end of the loading platform (7) is provided with a vertical drive (22) to drive the robotic arm (10) and the horizontal drive (21) to move horizontally as a whole to transport the terminal between the loading end (8) and the unloading end (9).

7. The device for connecting multi-strand wires to terminals according to claim 6, characterized in that, The terminal positioning clamping assembly (4) includes a fixed seat (18) and a movable seat (19) arranged opposite to each other. The movable seat (19) is located on the side close to the terminal feeding assembly (2). The movable seat (19) can slide horizontally toward or away from the fixed seat (18). The inner end faces of the fixed seat (18) and the movable seat (19) are provided with clamping grooves (20) for clamping the terminals.

8. A method for connecting multi-strand wires to terminals, comprising connecting multi-strand wires of a transformer lead to terminals using the device described in claim 7, characterized in that... Includes the following steps: S1: The wire is fed out along the production direction into the guide sleeve (11), and the inner end face (17) of the guide sleeve (11) shapes and tightens the end of the wire; S2: Pour the terminals of the corresponding specifications into the vibratory plate (12), turn on the vibratory plate (12), the vibratory plate (12) sorts the terminals in a certain order and sends them to the discharge port (13). At least two terminals are lined up in the prescribed direction at the discharge port (13), and one terminal on the outside is close to the top limit plate (15) of the discharge trough (26). S3: The robot (10) grips a terminal in the discharge slot (26) and transports it to the unloading end (9). The terminal falls into the clamping slot (20) of the terminal positioning clamping assembly (4), and the robot (10) resets to the loading end (8). S4: The fixed seat (18) and movable seat (19) of the terminal positioning and clamping assembly (4) accurately position and clamp the terminal, ensuring that the terminal is coaxial with the guide sleeve (11); S5: The wire is guided through the tapered surface of the guide sleeve (11) and then inserted into the inner hole of the terminal; S6: After the insertion depth of the terminal meets the parameter requirements, the fixed seat (18) and the movable seat (19) are released, and the wire and the terminal enter the terminal crimping assembly (5) together, and the terminal crimping assembly (5) starts to work. S7: The crimped wire continues to the next process.

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