Assembling method of socket terminal, moving contact and contact support and socket

Abstract

The invention discloses an assembling method for a socket terminal, a moving contact piece and a contact support, and the method comprises the following steps: S1, respectively blanking the terminal and the moving contact piece at the left side into a first jig, pulling out a whole coil of electric wire, and cutting the whole coil of electric wire at a specified length; s2, the cut electric wire is clamped to a wiring end and a movable contact piece through a first clamp; s3, the electric wire, the wiring end and the movable contact piece are welded into an integrated part through a spot welding machine, and then the welded part is integrally positioned and clamped into the left side of the second jig through a left side clamp; s4, the step S1 and the step S3 are executed on the right side in the same way, and the welded part is integrally positioned and clamped into the right side of the second jig; s5, the welded parts on the two sides move inwards, and one contact support is clamped and placed in a second jig; and S6, the semi-finished product obtained in the last step is integrally positioned and clamped into the middle frame through a third clamp to be positioned and assembled. The assembling method is high in automation degree and higher in efficiency. The invention further discloses a socket with the wiring end, the movable contact piece and the contact support in the claim.

Description

Technical Field

[0001] The invention relates to the technical field of sockets, and in particular to an assembly method of a socket terminal, a movable contact piece and a contact support, and a socket. Background Art

[0002] The socket is a practical electrical product used in home residences to protect users from the hazards of leakage and electric shock. It has a small structure but powerful protection function. Due to the small structure of the socket, its internal structure is compact. At present, the terminal and the moving contact are manually connected together through wires, and then assembled with the contact support, and finally installed in the shell to enter the next step. Since the wires are soft wires, the terminal and the moving contact are very easy to be displaced after the wires are welded, which makes it difficult to assemble the terminal, the moving contact and the contact support through automated equipment. Manual assembly is required. However, the manual assembly method is also difficult to position and install the terminal, the moving contact and the contact support. The terminal and the moving contact connected by the wire need to be installed separately. After installation, the wire needs to be allocated to the specified bending shape. Not only is the labor intensity high, but the efficiency is low and the qualified rate is also low. Summary of the invention

[0003] In view of the shortcomings of the background technology, the technical problem to be solved by the present invention is to provide an assembly method of a socket terminal, a movable contact piece and a contact support with a high degree of automation and higher efficiency.

[0004] To this end, the present invention is implemented by adopting the following technical solutions:

[0005] A method for assembling a socket terminal, a movable contact piece and a contact support, characterized in that it comprises the following steps:

[0006] S1: The wiring terminal and the moving contact piece on the left are respectively fed into the first fixture, and the whole roll of wire is pulled out and cut to a specified length;

[0007] S2: The cut wire is clamped to the wiring terminal and the moving contact piece by a first clamp, and the two ends of the wire are respectively located at the welding point positions corresponding to the wiring terminal and the moving contact piece;

[0008] S3: Use a spot welder to weld the wires, terminal and moving contact piece into an integrated component, and then use the left fixture to fix and position the welded component as a whole into the left side of the second fixture without destroying its existing shape;

[0009] S4: The above S1-S3 are performed on the right side in the same way, and then the welded parts are positioned and clamped as a whole into the right side of the second fixture by the right fixture in the same way;

[0010] S5: The welded parts on both sides are moved inward, and then a contact support is clamped by the second fixture and placed into the second fixture, and the columns on both sides of the contact support are plugged and positioned with the through holes of the moving contact piece;

[0011] S6: Finally, the semi-finished product completed in the previous step is fixedly positioned and clamped into the corresponding slot in the middle frame by the third fixture without destroying its existing shape for positioning and assembly, so as to proceed to the next step.

[0012] Furthermore, the first jig and the second jig both use a multi-station turntable for rotation, each station is equipped with a corresponding jig, the two first jig turntables are located on the symmetrical sides of the second jig turntable, and the terminal and the moving contact piece are respectively unloaded through the vibration plate.

[0013] Furthermore, the first fixture is respectively provided with a first slot and a second slot for inserting the wiring terminal and the moving contact piece, and the wiring terminal and the moving contact piece are placed in the corresponding first slot and second slot through a fourth fixture for positioning.

[0014] Furthermore, the second fixture includes a base and a left module and a right module movably arranged on the base, the left module and the right module are respectively provided with a second slot and a third slot for accommodating wiring terminals and moving contact pieces, and the wiring terminals in S3 and S4 are vertically placed in the second slots and the moving contact pieces are horizontally placed in the third slots for positioning.

[0015] Furthermore, the left clamp and the right clamp have multiple clamps that can clamp the wiring terminals and the moving contact pieces at the same time, and the third clamp has multiple clamps that can clamp the contact support and the wiring terminals and the moving contact pieces on both sides at the same time.

[0016] Furthermore, the middle frame is provided with a fourth slot and a fifth slot for accommodating contact support and wiring terminal insertion, respectively.

[0017] Furthermore, the opening of the fifth slot is provided with a rounded corner for facilitating the guiding and insertion of the terminal.

[0018] After adopting the above technical solution, the wiring terminals, moving contacts and contact supports are positioned and assembled into the middle frame as a whole through automation instead of manual labor, and then proceed to the next step. The high degree of automation greatly reduces the intensity of manual labor, while also improving production efficiency and reducing the defective rate. It solves the problem that two metal parts welded with electric wires (copper wires) cannot be automated because of their different shapes. It provides a solution and can improve efficiency to more than three times that of humans.

[0019] The present invention also discloses a socket with the wiring terminal, movable contact piece and contact support as described in the above claims, comprising a base, a middle frame and an upper cover, the upper cover having at least two jacks for the socket rod to be inserted into to realize conductive connection, a circuit board is arranged in the base, the wiring terminal, wire, movable contact piece and contact support are arranged between the base and the middle frame, and is characterized in that: the wiring terminal has a connecting piece, the lower end of the connecting piece has a plurality of pins, the circuit board is provided with a sixth slot for fixing the pins, the two movable contact pieces are installed on the left and right sides of the contact support, and the movable contact piece has a downwardly bent connecting portion, and the connecting portion is used to connect the wires.

[0020] Furthermore, the contact support is provided with open slots on the left and right outer sides, the connecting portion is inserted into the open slots, a positioning protrusion is provided on the inner side of the movable contact piece, and the contact support is provided with a positioning slot for accommodating the positioning protrusion to be inserted.

[0021] Furthermore, the wiring terminal is threaded with a wiring bolt, and the number of the pins is two. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention has the following accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure after the wiring terminal, the moving contact piece and the contact support are positioned and assembled in the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional structure after the wiring terminal, the moving contact piece and the contact support are assembled with the middle frame in the invention;

[0025] Figure 3 It is a three-dimensional structural schematic diagram of the socket in the invention;

[0026] Figure 4 Schematic diagram of the three-dimensional structure of the terminal, movable contact piece, contact support and base in the invention.

[0027] Figure numerals: 1. terminal; 2. moving contact piece; 3. contact support; 4. column; 5. through hole; 6. fourth slot; 7. fifth slot; 8. base; 9. middle frame; 10. upper cover; 11. jack; 12. circuit board; 13. wire; 14. connecting piece; 15. pin; 16. sixth slot; 17. connecting part; 18. positioning protrusion; 19. positioning groove; 20. wiring bolt; 21. open card slot. DETAILED DESCRIPTION

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

[0029] Referring to the above-mentioned drawings, the present invention provides a method for assembling a socket terminal, a movable contact piece and a contact support, which is characterized by comprising the following steps:

[0030] S1: The left terminal 1 and the moving contact piece 2 are respectively fed into the first fixture, and the whole roll of wire is pulled out and cut to a specified length;

[0031] S2: The cut wire 13 is clamped to the wiring terminal 1 and the moving contact piece 2 by a first clamp, and at this time, both ends of the wire 13 are respectively located at the welding point positions corresponding to the wiring terminal 1 and the moving contact piece 2;

[0032] S3: The wire 13, the terminal 1 and the moving contact piece 2 are welded into an integral component by a spot welding machine, and then the welded component is fixedly positioned and clamped into the left side of the second fixture by the left fixture without destroying its existing shape;

[0033] S4: The above S1-S3 are performed on the right side in the same way, and then the welded parts are positioned and clamped as a whole into the right side of the second fixture by the right fixture in the same way;

[0034] S5: The welded parts on both sides are moved inward, and then a contact support 3 is clamped by the second fixture and placed into the second fixture, and the columns 4 on both sides of the contact support 3 are plugged and positioned with the through holes 5 of the moving contact piece 2;

[0035] S6: Finally, the semi-finished product completed in the previous step is fixedly positioned and clamped into the corresponding slot in the middle frame 9 by the third clamp without destroying its existing shape for positioning and assembly, so as to proceed to the next step.

[0036] In this embodiment, the first jig and the second jig both use a multi-station turntable for rotation, each station is equipped with a corresponding jig, the two first jig turntables are respectively located on the symmetrical sides of the second jig turntable, the terminal 1 and the moving contact piece 2 are cut by vibrating plates respectively, the first jig is respectively provided with a first slot and a second slot for inserting the terminal 1 and the moving contact piece 2, the terminal 1 and the moving contact piece 2 are respectively placed in the corresponding first slot and second slot through a fourth fixture for positioning, the second jig includes a base and a left module and a right module movably arranged on the base, the left module and the right module are respectively A second slot and a third slot are provided for accommodating the terminal 1 and the moving contact piece 2. In S3 and S4, the terminal 1 is vertically placed in the second slot, and the moving contact piece 2 is horizontally placed in the third slot for positioning. The left clamp and the right clamp have multiple clamps that can clamp the terminal 1 and the moving contact piece 2 at the same time. The third clamp has multiple clamps that can clamp the contact support 3 and the terminal 1 and the moving contact piece 2 on both sides at the same time. The middle frame 9 is respectively provided with a fourth slot 6 and a fifth slot 7 for accommodating the contact support 3 and the terminal 1 for insertion. The opening of the fifth slot 7 is provided with a chamfered corner for guiding the insertion of the terminal 1.

[0037] The present invention also provides a socket with the terminal 1, the movable contact piece 2 and the contact support 3 as described in the above claims, comprising a base 8, a middle frame 9 and an upper cover 10, the upper cover 10 having at least two jacks 11, the jacks 11 being used for the socket plug rod to be inserted to achieve conductive connection, a circuit board 12 is arranged in the base 8, the terminal 1, the wire 13, the movable contact piece 2 and the contact support 3 are arranged between the base 8 and the middle frame 9, and is characterized in that: the terminal 1 has a connecting piece 14, the lower end of the connecting piece 14 has a plurality of pins 15, the circuit board 12 has a plurality of pins 16, and the lower end of the connecting piece 14 has a plurality of pins 17, and the upper end of the circuit board 12 has a plurality of pins 18, and the lower end of the connecting piece 14 has a plurality of pins 19, and the upper ... A sixth slot 16 for fixing a pin 15 is provided, the two movable contact pieces 2 are installed on the left and right sides of the contact support 3, and the movable contact piece 2 has a downwardly bent connecting portion 17, the connecting portion 17 is used to connect the wire 13, the left and right outer sides of the contact support 3 are provided with an open card slot 21, the connecting portion 17 is inserted into the open card slot 21, a positioning protrusion 18 is provided on the inner side of the movable contact piece 2, the contact support 3 is provided with a positioning groove 19 for inserting the positioning protrusion 18, the wiring terminal 1 is screwed with a wiring bolt 20, and the number of the pins 15 is two.

[0038] In this embodiment, the upper part of the terminal 1 is inserted into the fifth slot 7 of the middle frame 9, and the pin 15 at the lower end is inserted into the sixth slot 16 of the circuit board 12, so that the terminal 1 is well positioned and the structure is stable and firm. When the socket is working, the contact support 3 will drive the moving contact piece 2 to move up and down (the wire 13 swings accordingly), the downward bent connecting portion 17 and the open slot 21 cooperate, the positioning protrusion 18 and the positioning slot 19 cooperate, and the through hole 5 and the column 4 cooperate, so that the structural stability of the moving contact piece 2 and the contact support 3 is better, which can effectively prevent the moving contact piece 2 from detaching from the contact support 3 during the up and down movement, thereby causing power failure or short circuit in the socket.

[0039] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A method for assembling a socket terminal, a movable contact piece and a contact support, characterized in that: The following steps are involved: S1: The wiring terminal and the moving contact piece on the left are respectively fed into the first fixture, and the whole roll of wire is pulled out and cut to a specified length; S2: The cut wire is clamped to the wiring terminal and the moving contact piece by a first clamp, and the two ends of the wire are respectively located at the welding point positions corresponding to the wiring terminal and the moving contact piece; S3: Use a spot welder to weld the wires, terminal and moving contact piece into an integrated component, and then use the left fixture to fix and position the welded component as a whole into the left side of the second fixture without destroying its existing shape; S4: The above S1-S3 are performed on the right side in the same way, and then the welded parts are positioned and clamped as a whole into the right side of the second fixture by the right fixture in the same way; S5: The welded parts on both sides are moved inward, and then a contact support is clamped by the second fixture and placed into the second fixture, and the columns on both sides of the contact support are plugged and positioned with the through holes of the moving contact piece; S6: Finally, the semi-finished product completed in the previous step is fixedly positioned and clamped into the corresponding slot in the middle frame by the third fixture without destroying its existing shape for positioning and assembly, so as to proceed to the next step.

2. The method for assembling the socket terminal, the movable contact piece and the contact support according to claim 1, characterized in that: The first jig and the second jig both use a multi-station turntable for rotation, each station is equipped with a corresponding jig, and the two first jig turntables are respectively located on the symmetrical sides of the second jig turntable, and the terminal and the moving contact piece are respectively unloaded through the vibration plate.

3. The method for assembling the socket terminal, the movable contact piece and the contact support according to claim 2, characterized in that: The first fixture is respectively provided with a first slot and a second slot for inserting the wiring terminal and the moving contact piece. The wiring terminal and the moving contact piece are placed in the corresponding first slot and second slot through a fourth fixture for positioning.

4. The method for assembling the socket terminal, the movable contact piece and the contact support according to claim 3, characterized in that: The second fixture includes a base and a left module and a right module movably arranged on the base, the left module and the right module are respectively provided with a second slot and a third slot for accommodating wiring terminals and moving contact pieces, and the wiring terminals in S3 and S4 are vertically placed in the second slots and the moving contact pieces are horizontally placed in the third slots for positioning.

5. The method for assembling a socket terminal, a movable contact piece and a contact support according to any one of claims 1 to 4, characterized in that: The left clamp and the right clamp have multiple clamps that can clamp the wiring terminals and the moving contact pieces at the same time, and the third clamp has multiple clamps that can clamp the contact support and the wiring terminals and the moving contact pieces at both sides at the same time.

6. The method for assembling the socket terminal, the movable contact piece and the contact support according to claim 5, characterized in that: The middle frame is provided with a fourth slot and a fifth slot for accommodating contact support and wiring terminal insertion, respectively.

7. The method for assembling the socket terminal, the movable contact piece and the contact support according to claim 6, characterized in that: The opening of the fifth slot is provided with a rounded corner for facilitating the guiding and insertion of the terminal.

8. A socket with the wiring terminal, movable contact piece and contact support as claimed in the above claims, comprising a base, a middle frame and an upper cover, the upper cover having at least two jacks for the socket rod to be inserted into to achieve conductive connection, a circuit board is arranged in the base, the wiring terminal, wire, movable contact piece and contact support are arranged between the base and the middle frame, and is characterized in that: The wiring terminal has a connecting piece with a plurality of pins at the lower end thereof, the circuit board is provided with a sixth slot for fixing the pins, the two moving contact pieces are installed on the left and right sides of the contact support, and the moving contact piece has a connecting portion bent downward, and the connecting portion is used to connect the wires.

9. The socket according to claim 8, characterized in that: The contact support is provided with open slots on the left and right outer sides, the connecting portion is inserted into the open slots, a positioning protrusion is provided on the inner side of the moving contact piece, and the contact support is provided with a positioning slot for accommodating the positioning protrusion to be inserted.

10. The socket according to claim 8 or 9, characterized in that: The wiring terminal is threaded with a wiring bolt, and the number of the pins is two.

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