Cable squaring and welding device

Abstract

The utility model belongs to the technical field of welding, and particularly relates to a cable squaring welding device which is used for pressing a copper wire at the end of a cable into a square structure and comprises a resistance press welder which comprises an upper die holder, a lower die holder and a welding power source. The welding device further comprises a welding upper die, a welding lower die and a first welding positioning die, the welding upper die is arranged on the bottom side of the upper die base, and the welding upper die is provided with a first upper electrode; the welding lower die is arranged on the lower die base and provided with a first lower electrode. The first welding positioning die comprises a first bottom plate, a positioning mechanism and two side pressing mechanisms, the positioning mechanism and the two side pressing mechanisms are arranged on the first bottom plate, the first bottom plate is arranged on the lower die base, the positioning mechanism is used for positioning a cable, the two side pressing mechanisms are located on the two sides of the first lower electrode, and each side pressing mechanism comprises an extrusion block and a driving assembly for pushing the extrusion block to move; the two extrusion blocks, the first lower electrode and the first upper electrode form a pressing direction; the first upper electrode and the first lower electrode are electrically connected with a welding power source. And the squaring welding requirements of cables with different sizes can be met.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding, and in particular relates to a cable square pressing welding device. Background Art

[0002] In the circuit system of new energy vehicles, there are a large number of wiring harnesses, such as copper wiring harnesses for the interior lighting system of the car, copper wiring harnesses for motor output power, and copper conductive plates.

[0003] For example, the Chinese patent document with publication number CN110785894A discloses a wire connection structure, comprising one or more copper-based conductor-coated wires having a copper-based conductor coating and an exposed portion, and one or more aluminum-based conductor-coated wires having an aluminum-based conductor coating and an exposed portion, wherein an ultrasonic joint is formed in the conductor stacking portion formed by the overlapping copper-based conductor exposed portion and the aluminum-based conductor exposed portion, and the joint interface of the ultrasonic joint, in cross-sectional observation, the total length of the portion where the copper-based conductor exposed portion contacts the aluminum-based conductor exposed portion, i.e., the total contact length L, and the total length of the contour line of the space S formed by the portion where the copper-based conductor exposed portion and the aluminum-based conductor exposed portion are separated, x, satisfies the relationship (x / L)×100≤10%. The increase in resistance and the decrease in joint strength (pulling strength) caused by gap corrosion in the ultrasonic joint formed by the copper-based conductor exposed portion and the aluminum-based conductor exposed portion can be effectively suppressed. The technical solution disclosed in the above patent document is to realize the pressure welding of the cable conductor into a square structure by ultrasonic means. Since ultrasonic welding is used to weld metal, the ultrasonic mold and the power consumption of ultrasonic waves are very high. And because there are gaps between the cable conductors, they will absorb the energy of the ultrasonic welding head, resulting in the need to increase the power required by the welding head, which is likely to exceed the rated power of the ultrasonic wave, causing the ultrasonic wave to be damaged. Therefore, the use of ultrasonic welding has strict technical requirements and high production costs.

[0004] At present, in the industry, the cable ends are mostly pressed into a square structure by resistance welding. For example, the Chinese patent document with publication number CN111112814A discloses a resistance welding device for electric wires, including a base, a support is provided at the upper end of the base, a lower fixed seat is provided at the upper end of the base, a lower electrode is fixed at the upper end of the lower fixed seat, a groove is provided at the upper end of the lower electrode, a linear drive device is provided at the top of the support, an upper fixed seat is provided at the output end of the linear drive device, an upper electrode is fixed at the lower end of the upper fixed seat, a pressing block aligned with the groove is provided at the lower end of the upper electrode, a support plate is also provided at the upper end of the support plate, a water tank is provided at the upper end of the support plate, a water outlet pipe connected to the water tank is provided at the bottom of the water tank, an electromagnetic valve is provided on the water outlet pipe, a water spray pipe is connected at the bottom of the water outlet pipe, and the lower end of the water spray pipe points to the groove. The end of the electric wire is pressed into a square by the pressing block and the groove, and cooling water is sprayed to the end of the electric wire through the water spray pipe, so that the end of the electric wire is quickly cooled, the rubber sheath at the end of the electric wire is prevented from being burned, and the qualified rate of the electric wire pressed square product is improved.

[0005] After the end of the cable is stripped, some of the copper wires will be scattered. When the copper wires are placed in the groove for positioning, the loose copper wires will be located outside the groove or on the top side of the groove, so that when the upper and lower electrodes are welded together, there will be unwelded copper wires. Utility Model Content

[0006] The utility model aims to provide a cable compression welding device to solve the problem that part of the copper wire cannot be welded when the existing resistance welding device welds the copper wires of the stripped cable into one piece.

[0007] To achieve the above-mentioned purpose, the utility model provides a cable square welding device for pressing the copper wire at the end of the cable into a square structure, including a resistance welding machine, wherein the resistance welding machine includes an upper die base, a lower die base and a welding power source;

[0008] It also includes a welding upper mold, which is arranged on the bottom side of the upper mold base, and the welding upper mold is provided with a first upper electrode; a welding lower mold, which is arranged on the lower mold base, and the welding lower mold is provided with a first lower electrode, and a first welding positioning mold, which includes a first bottom plate, and a positioning mechanism and two sets of side pressure mechanisms arranged on the first bottom plate; the first bottom plate is arranged on the lower mold base, and the positioning mechanism is used to position the cable, and the two side pressure mechanisms are located on both sides of the first lower electrode, and the side pressure mechanism includes an extrusion block and a driving component that pushes the extrusion block to move; the two extrusion blocks, the first lower electrode and the first upper electrode form a pressing orientation; the first upper electrode and the first lower electrode are electrically connected to the welding power supply.

[0009] Furthermore, an air avoidance opening is provided on the first bottom plate for avoiding air from the welding lower mold.

[0010] Furthermore, the driving assembly includes a slider, a mounting seat, a power unit, a push block and a reset member; the slider is slidably connected to the first base plate, and the extrusion block is arranged at one end of the slider; the mounting seat is arranged on the first base plate, and the mounting seat is provided with a side plate perpendicular to the sliding track of the slider, the push block is slidably connected to the side plate, and a guide surface is provided on the side of the push block close to the slider for squeezing and pushing the slider, the power unit is connected to the push block, and the reset member is connected to the slider to slide and reset the slider.

[0011] Furthermore, the driving assembly also includes an adjusting member, the slider is provided with a sliding groove, the adjusting member is slidably arranged in the sliding groove, the extrusion block is arranged at one end of the adjusting member, and the other end of the adjusting member is provided with an adjusting screw, and the end of the adjusting screw is limited to the end side of the sliding groove; the slider is also provided with a limiting member, which is used to limit the top side of the adjusting member.

[0012] Furthermore, the positioning mechanism includes a support seat and a pressure plate, the support seat is arranged on the first base plate, the support seat is provided with a positioning groove and a support portion extending to the pressing position, the support seat has a first connecting portion and a second connecting portion extending upward on both sides of the support seat, one end of the pressure plate is rotatably connected to the first connecting portion, and the second connecting portion is provided with an elastic buckle for limiting the other end of the pressure plate.

[0013] Furthermore, it also includes a second welding positioning mold, and the second welding positioning mold and the first welding positioning mold can be interchangeably arranged on the lower mold base; the welding upper mold is also provided with a second upper electrode, and the second upper electrode and the first upper electrode are interchangeably arranged on the bottom side of the welding upper mold; the welding lower mold is provided with a second lower electrode, and the second lower electrode and the first lower electrode are interchangeably arranged; the second welding positioning mold includes a second bottom plate, a positioning seat and a cable positioning member; the second bottom plate is detachably arranged on the lower mold base; the second bottom plate is provided with a through hole, and the positioning seat is arranged above the through hole, and the positioning seat is provided with a positioning cavity for positioning the terminal to be welded with the copper wire at the end of the cable, and the bottom side of the positioning cavity is provided with an air avoidance hole so that the second lower electrode can extend into the positioning cavity; a plurality of cable positioning grooves are provided along the positioning cavity.

[0014] Furthermore, the second welding positioning mold also includes a mounting plate, on which an elastic support member is disposed, and the second bottom plate is disposed on the elastic support member, so that the second bottom plate can float up and down.

[0015] Furthermore, the cable positioning grooves are provided on both sides of the positioning cavity, and a positioning plate is further provided on the second bottom plate, and the positioning plate can be telescopically extended to the top of the positioning cavity.

[0016] Furthermore, a guide seat is provided on the second bottom plate, and a guide groove is provided on the guide seat. One end of the positioning plate is slidably connected in the guide groove and is connected to a horizontal push mechanism, which is used to push the positioning plate to extend toward or leave the top of the positioning cavity.

[0017] Furthermore, the push mechanism includes a mounting frame, a support frame, a connecting piece and a push piece; a slot is provided at the lower end of the mounting frame, the mounting frame is arranged on the front side of the resistance welding machine, one end of the connecting piece is rotatably connected to the upper end of the mounting frame, the push piece is arranged on the connecting piece, and the push piece is provided with a push rod extending toward the positioning plate; a transition part is provided on the bottom side of the connecting piece, the upper end of the support frame is rotatably connected to the transition part, and a clamping piece is provided at the lower end of the support frame for clamping in the slot so that the support frame supports the connecting piece to be horizontally arranged; a spring is also provided in the guide seat, and the spring is used to push the positioning plate away from the top of the positioning cavity.

[0018] The above one or more technical solutions in the cable square welding device provided by the embodiment of the utility model have at least the following technical effects:

[0019] The first welding positioning die includes a positioning mechanism and two sets of side pressing mechanisms. The side pressing mechanisms are located on both sides of the first lower electrode. The side pressing mechanisms include an extrusion block and a driving component that pushes the extrusion block to move. The two extrusion blocks and the first lower electrode and the first upper electrode form a pressing position. The positioning mechanism positions the cable so that the cable end is located in the pressing position. The driving component pushes the extrusion block to move, and the two extrusion blocks move toward each other for extrusion. Therefore, the copper wire at the end of the cable can be completely welded into a square structure. In addition, the cable square pressing welding device can also adapt to the square pressing welding of cables of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 A stereoscopic diagram of a cable square welding device provided in an embodiment of the utility model connected to a first welding positioning mold.

[0022] Figure 2 A three-dimensional diagram of the first welding positioning mold of the cable square welding device provided in an embodiment of the utility model.

[0023] Figure 3 A partial structural diagram of the first welding positioning mold of the cable square welding device provided in an embodiment of the utility model.

[0024] Figure 4 Another structural diagram of the first welding positioning mold of the cable square welding device provided in an embodiment of the utility model.

[0025] Figure 5A stereoscopic diagram of a cable square welding device provided in an embodiment of the utility model connected to a second welding positioning mold.

[0026] Figure 6 A partial structural diagram of the second welding positioning mold of the cable square welding device provided in an embodiment of the utility model.

[0027] Figure 7 A top view of the second welding positioning mold of the cable square welding device provided in an embodiment of the utility model.

[0028] Figure 8 A structural diagram of the second bottom plate of the cable square welding device provided in an embodiment of the utility model.

[0029] Fig. 9 A three-dimensional diagram of a cable square welding device provided in an embodiment of the utility model.

[0030] Fig.10 An enlarged view of A of the cable compression welding device provided in an embodiment of the utility model

[0031] In the figure, 100, upper die base, 110, welding upper die, 120, first upper electrode, 130, second upper electrode;

[0032] 200, lower die base, 210, welding lower die, 220, first lower electrode, 230, second lower electrode;

[0033] 300. Welding power source;

[0034] 400, first welding positioning die, 410, first bottom plate, 411, avoidance opening, 420, positioning mechanism, 421, support seat, 422, pressure plate, 423, positioning groove, 424, support portion, 425, first connecting portion, 426, second connecting portion, 427, elastic buckle, 430, side pressure mechanism, 431, extrusion block, 440, driving assembly, 441, slider, 442, slide groove, 443, mounting seat, 444, side plate, 445, power unit, 446, push block, 447, guide surface, 448, reset member, 449, limit member, 450, adjustment member, 451, adjustment screw, 460, pressure orientation;

[0035] 500, second welding positioning mold, 510, second bottom plate, 511, through hole, 520, positioning seat, 521, positioning cavity, 522, air avoidance hole, 530, cable positioning member, 540, mounting plate, 541, elastic support member, 550, cable positioning groove, 560, positioning plate, 561, guide seat, 562, guide groove, 563, spring; 600, horizontal push mechanism, 610, mounting frame, 611, card slot, 620, support frame, 621, card connector, 630, connector, 631, adapter, 640, horizontal push member, 641, push rod;

[0036] 700, terminal. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0038] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0040] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0041] In one embodiment of the cable square welding device of the utility model, please refer to Figures 1 to 10 . A cable square welding device is used to press the copper wire at the end of the cable into a square structure, comprising a resistance welding machine, a welding upper die 110, a welding lower die 210 and a first welding positioning die 400. The welding upper die 110 is arranged on the bottom side of the upper die base 100, and the welding upper die 110 is provided with a first upper electrode 120. Wherein, the resistance welding machine comprises an upper die base 100, a lower die base 200 and a welding power source 300. The welding lower die 210 is arranged on the lower die base 200, and the welding lower die 210 is provided with a first lower electrode 220. The first welding positioning die 400 comprises a first bottom plate 410, and a positioning mechanism 420 and two sets of side pressing mechanisms 430 arranged on the first bottom plate 410. The first bottom plate 410 is arranged on the lower die base 200, the positioning mechanism 420 is used to position the cable, and the two side pressing mechanisms 430 are located on both sides of the first lower electrode 220, and the side pressing mechanism 430 comprises an extrusion block 431 and a driving assembly 440 for pushing the extrusion block 431 to move. The two pressing blocks 431 , the first lower electrode 220 and the first upper electrode 120 form a pressing position 460 , and the first upper electrode 120 and the first lower electrode 220 are electrically connected to the welding power source 300 .

[0042] Specifically, the first welding positioning mold 400 in the cable compression welding device of this embodiment includes a positioning mechanism 420 and two sets of side compression mechanisms 430. The two side compression mechanisms 430 are located on both sides of the first lower electrode 220. The side compression mechanisms 430 include a squeezing block 431 and a driving component 440 that pushes the squeezing block 431 to move. The two squeezing blocks 431 and the first lower electrode 220 and the first upper electrode 120 form a compression position 450. The positioning mechanism 420 positions the cable so that the end of the cable is located in the compression position 460. The driving component 440 pushes the squeezing block 431 to move, and the two squeezing blocks 431 move toward each other for compression. Therefore, the distance between the two extrusion blocks 431 can be set to be large enough, and the copper wire at the end of the cable can be completely located between the two extrusion blocks 431, avoiding that some loose copper wires are located outside the extrusion blocks 431, and then all the copper wires at the end of the cable can be welded into a square overall structure through the extrusion of the two extrusion blocks 431 and the first upper electrode 120, as well as the first lower electrode 220, so as to realize the square pressing of the copper wire at the end of the cable. In addition, since the extrusion blocks 431 are movable relative to each other, the copper wire welding and square pressing of cables of different sizes can be adapted.

[0043] For further information, please refer to Figure 2 The first bottom plate 410 is provided with an air-avoiding opening 411 for air-avoiding welding of the lower mold 210. Specifically, the first lower electrode 220 passes through the air-avoiding opening 411 to form a pressing position 460 with the side pressing mechanism 430 and the first upper electrode 120.

[0044] For further information, please refer to Figure 2 and Figure 3 The driving assembly 440 includes a slider 441, a mounting seat 443, a power unit 445, a push block 446 and a reset member 448. The slider 441 is slidably connected to the first bottom plate 410. The extrusion block 431 is arranged at one end of the slider 441. The mounting seat 443 is arranged on the first bottom plate 410. The mounting seat 443 is provided with a side plate 444 perpendicular to the sliding track of the slider 441. The push block 446 is slidably connected to the side plate 444. The side of the push block 446 close to the slider 441 is provided with a guide surface 447 for squeezing and pushing the slider 441. The power unit 445 is connected to the push block 446, and the reset member 448 is connected to the slider 441 to slide and reset the slider 441. Specifically, the power unit 445 can drive the push block 446 to move the slider 441 close to the push block guide surface 447 toward the cable end and press the cable. When the first upper electrode 120 moves downward to press the end of the welding cable, a large impact force will be generated. Since the side plate 444 of the mounting seat 443 is perpendicular to the sliding track of the slider 441, the side plate 444 forms a reaction force, which effectively alleviates the pressure shock and avoids deformation of the slider 441 and the push block 446. After the cable end is completed, the first upper electrode 120 moves upward, the power unit 445 drives the push block 446 to reset, and the reset member 448 causes the slider 441 to slide and reset. The reset member 448 can be an elastic reset member, such as a spring, a rubber band, etc., or a cylinder. Preferably, a pulley is provided at one end of the slider 441 close to the guide surface 447, and the pulley contacts the push block 446, which can reduce the contact friction between the slider 441 and the push block 446 and reduce wear.

[0045] For further information, please refer to Figure 2 and Figure 3 The driving assembly 440 further includes an adjusting member 450, a slide 442 is provided on a slider 441, the adjusting member 450 is slidably arranged in the slide 442, an extrusion block 431 is arranged at one end of the adjusting member 450, and an adjusting screw 451 is provided at the other end of the adjusting member 450, and the end of the adjusting screw 451 is limited at the end side of the slide 442. A limiting member 449 is also provided on the slider 441, which is used to be limited at the top side of the adjusting member 450. Specifically, the adjusting bolt 451 can adjust the distance between the adjusting member 450 and the slider 441, and then adjust the left-right distance between the two extrusion blocks 431, so as to adapt to the compression welding of cable ends of different sizes in the compression position 460.

[0046] For further information, please refer to Figure 3 and Figure 4The positioning mechanism 420 includes a support seat 421 and a pressure plate 422. The support seat 421 is arranged on the first bottom plate 410. The support seat 421 is provided with a positioning groove 423 and a support portion 424 extending to the pressure position 460. The first connecting portion 425 and the second connecting portion 426 are extended upward on both sides of the support seat 421. One end of the pressure plate 422 is rotatably connected to the first connecting portion 425. The second connecting portion 426 is provided with an elastic buckle 427 for limiting the other end of the pressure plate 422. Specifically, the bottom side of the cable can be placed in the positioning groove 423 and the support portion 424, and then the pressure plate 422 is rotated to the top side of the cable, and the other end of the pressure plate 422 is buckled in the elastic buckle 427 to limit the cable.

[0047] For further information, please refer to Figures 5 to 8 The cable compression welding device of this embodiment further includes a second welding positioning die 500, and the second welding positioning die 500 and the first welding positioning die 400 can be interchangeably arranged on the lower die base 200. Specifically, the first welding positioning die 400 can be removed from the lower die base 200, and the second welding positioning die 500 can be installed on the lower die base 200.

[0048] The welding upper die 110 is also provided with a second upper electrode 130, which is disposed on the bottom side of the welding upper die 110 in a manner that the second upper electrode 130 and the first upper electrode 120 are mutually replaced. The welding lower die 210 is provided with a second lower electrode 230, which is disposed in a manner that the second lower electrode 230 and the first lower electrode 220 are mutually replaced. The second welding positioning die 500 includes a second bottom plate 510, a positioning seat 520 and a cable positioning member 530, the second bottom plate 510 is detachably disposed on the lower die seat 200, the second bottom plate 510 is provided with a through hole 511, the positioning seat 520 is disposed above the through hole 511, the positioning seat 520 is provided with a positioning cavity 521, which is used to position the terminal 700 to be welded with the copper wire at the end of the cable, and an air avoidance hole 522 is provided on the bottom side of the positioning cavity 521, so that the second lower electrode 230 can extend into the positioning cavity 521, and a plurality of cable positioning grooves 550 are provided along the positioning cavity 521.

[0049] Specifically, since the second welding positioning mold 500 and the first welding positioning mold 400 can be interchangeably arranged on the lower mold base 200, the cable end can be replaced with the second welding positioning mold 500 after the first welding positioning mold 400 completes the press-square welding. Thereby, the welding of different products can be achieved. In this embodiment, the second welding positioning mold 500 can weld one or more cables formed by the first welding positioning mold 400 to a copper terminal. A single or multiple cables are welded to the terminal on the second welding positioning mold 500. A resistance welding machine completes two welding processes on the lower mold base 200 by replacing the welding positioning mold, thereby improving production efficiency and equipment flexibility. Specifically, the positioning cavity 521 of the positioning seat 520 can position the terminal 700, and the bottom side of the positioning cavity 521 has an air-avoiding hole 522. The second lower electrode 230 can extend into the positioning cavity 521 and conduct with the terminal 700. The cable positioning member 530 positions the cable so that the end of the cable is located on the terminal 700. The second upper electrode 130 moves downward and energizes with the second lower electrode 230 to weld the cable and the terminal 700 into one. This achieves multiple uses of one machine and reduces costs.

[0050] For further information, please refer to Figure 6 The second welding positioning mold 500 further includes a mounting plate 540, on which an elastic support member 541 is disposed, and the second bottom plate 510 is disposed on the elastic support member 541, so that the second bottom plate 510 can float up and down. When the second welding positioning mold 500 is subjected to downward pressure, the elastic support member 541 is compressed, so that the second lower electrode 230 is connected to the terminal in the positioning cavity 521.

[0051] For further information, please refer to Figure 7 and Figure 8 , cable positioning grooves 550 are provided on both sides of the positioning cavity 521, and a positioning plate 560 is also provided on the second bottom plate 510, and the positioning plate 560 can be telescopically extended to the top of the positioning cavity 521. Specifically, the cable positioning groove 550 further limits the cable to prevent the cable from moving left and right. The positioning plate 560 can be telescopically extended to the top of the positioning cavity 521, so the positioning plate 560 can limit the terminal 700 to prevent the terminal 700 from moving up and down, and at the same time position the end of the cable. Avoid the cable from moving forward and backward. It is convenient to control the welding position of the cable and the terminal 700, improve the welding quality, and reduce welding deformation.

[0052] For further information, please refer to Figure 6 , Fig. 9 and Fig.10The second bottom plate 510 is provided with a guide seat 561, and the guide seat 561 is provided with a guide groove 562. One end of the positioning plate 560 is slidably connected in the guide groove 562, and is connected with a horizontal push mechanism 600. The horizontal push mechanism 600 is used to push the positioning plate 560 to extend toward or leave the upper part of the positioning cavity 521. Specifically, the guide groove 562 limits the moving stroke of the positioning plate 560, and the horizontal push mechanism 600 can stably push the positioning plate 560 to extend toward or leave the upper part of the positioning cavity 521.

[0053] For further information, please refer to Figure 6 , Fig. 9 and Fig.10 The horizontal push mechanism 600 includes a mounting frame 610, a support frame 620, a connecting member 630 and a horizontal push member 640. A slot 611 is provided at the lower end of the mounting frame 610. The mounting frame 610 is arranged at the front side of the resistance pressure welding machine. One end of the connecting member 630 is rotatably connected to the upper end of the mounting frame 610. The horizontal push member 640 is arranged on the connecting member 630. The horizontal push member 640 is provided with a push rod 641 extending toward the positioning plate 560. A transfer part 631 is provided at the bottom side of the connecting member 630. The upper end of the support frame 620 is rotatably connected to the transfer part 631. A clamping member 621 is provided at the lower end of the support frame 620 for clamping in the slot 611 so that the support frame 620 supports the connecting member 630 to be arranged horizontally. A spring 563 is also provided in the guide seat 561. The spring 563 is used to push the positioning plate 560 away from the top of the positioning cavity 521. Specifically, when the support frame 620 supports the connecting member 630 to be horizontally arranged, the push member 640 on the connecting member 630 drives the push rod 640 to push the positioning plate 560 to extend into the top of the positioning cavity 521. When the push rod 640 is away from the positioning plate 560, the spring 563 in the guide seat 560 resets the positioning plate 560 to make it away from the top of the positioning cavity. When the resistance pressure welding machine is connected to the first welding positioning mold 400, the push mechanism 600 is temporarily not needed. The support frame 600 is removed from the card slot 611 of the mounting frame 610 through the clamping member 621, and the support frame 620 is rotated to fit the connecting member 630 through the adapter 631. Because one end of the connecting member 630 is rotatably connected to the mounting frame 610, the connecting member 630 can be rotated and folded on one side of the mounting frame 610.

[0054] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable square welding device, used for pressing the copper wire at the end of the cable into a square structure, comprising a resistance welding machine, the resistance welding machine comprising an upper die base, a lower die base and a welding power supply; characterized in that: Also includes: A welding upper die is arranged on the bottom side of the upper die seat, and the welding upper die is provided with a first upper electrode; A welding lower die is arranged on the lower die base, the welding lower die is provided with a first lower electrode, and The first welding positioning die comprises a first bottom plate, and a positioning mechanism and two sets of side pressure mechanisms arranged on the first bottom plate; the first bottom plate is arranged on the lower die seat, the positioning mechanism is used to position the cable, the two side pressure mechanisms are located on both sides of the first lower electrode, and the side pressure mechanisms comprise an extrusion block and a driving component for pushing the extrusion block to move; the two extrusion blocks, the first lower electrode and the first upper electrode form a pressure orientation; The first upper electrode and the first lower electrode are electrically connected to the welding power source.

2. The cable square welding device according to claim 1, characterized in that: The first bottom plate is provided with an air avoidance opening for avoiding air from the welding lower die.

3. The cable square welding device according to claim 1, characterized in that: The driving assembly includes a slider, a mounting seat, a power unit, a push block and a reset member; the slider is slidably connected to the first bottom plate, and the extrusion block is arranged at one end of the slider; the mounting seat is arranged on the first bottom plate, and the mounting seat is provided with a side plate perpendicular to the sliding track of the slider, the push block is slidably connected to the side plate, and a guide surface is provided on the side of the push block close to the slider for squeezing and pushing the slider, the power unit is connected to the push block, and the reset member is connected to the slider to slide and reset the slider.

4. The cable square welding device according to claim 3, characterized in that: The driving assembly also includes an adjusting member, a sliding groove is provided on the sliding block, the adjusting member is slidably arranged in the sliding groove, the extrusion block is arranged at one end of the adjusting member, and an adjusting screw is provided at the other end of the adjusting member, and the end of the adjusting screw is limited at the end side of the sliding groove; the sliding block is also provided with a limiting member for limiting the top side of the adjusting member.

5. The cable square welding device according to claim 1, characterized in that: The positioning mechanism includes a support seat and a pressure plate, the support seat is arranged on the first base plate, the support seat is provided with a positioning groove and a support portion extending to the pressure position, the support seat has a first connecting portion and a second connecting portion extending upward on both sides of the support seat, one end of the pressure plate is rotatably connected to the first connecting portion, and the second connecting portion is provided with an elastic buckle for limiting the other end of the pressure plate.

6. The cable square welding device according to any one of claims 1 to 5, characterized in that: The welding die also includes a second welding positioning die, which is disposed on the lower die seat in a manner that the second welding positioning die and the first welding positioning die can be replaced with each other; the welding upper die is also provided with a second upper electrode, which is disposed on the bottom side of the welding upper die in a manner that the second upper electrode and the first upper electrode are replaced with each other; the welding lower die is provided with a second lower electrode, which is disposed in a manner that the second lower electrode and the first lower electrode are replaced with each other; The second welding positioning mold includes a second bottom plate, a positioning seat and a cable positioning piece; the second bottom plate is detachably arranged on the lower mold seat; the second bottom plate is provided with a through hole, the positioning seat is arranged above the through hole, the positioning seat is provided with a positioning cavity for positioning the terminal to be welded with the copper wire at the end of the cable, and the bottom side of the positioning cavity is provided with an air avoidance hole so that the second lower electrode can extend into the positioning cavity; a plurality of cable positioning grooves are provided along the positioning cavity.

7. The cable square welding device according to claim 6, characterized in that: The second welding positioning mold also includes a mounting plate, on which an elastic support member is disposed, and the second bottom plate is disposed on the elastic support member so that the second bottom plate can float up and down.

8. The cable square welding device according to claim 6, characterized in that: The cable positioning grooves are disposed on both sides of the positioning cavity. The second bottom plate is further provided with a positioning plate, and the positioning plate can be telescopically extended toward the top of the positioning cavity.

9. The cable square welding device according to claim 8, characterized in that: The second bottom plate is provided with a guide seat, the guide seat is provided with a guide groove, one end of the positioning plate is slidably connected in the guide groove, and is connected with a horizontal push mechanism, and the horizontal push mechanism is used to push the positioning plate to extend toward or leave the top of the positioning cavity.

10. The cable square welding device according to claim 9, characterized in that: The horizontal push mechanism comprises a mounting frame, a supporting frame, a connecting member and a horizontal push member; a slot is provided at the lower end of the mounting frame, the mounting frame is arranged at the front side of the resistance pressure welding machine, one end of the connecting member is rotatably connected to the upper end of the mounting frame, the horizontal push member is arranged on the connecting member, and the horizontal push member is provided with a push rod extending toward the positioning plate; A transfer portion is provided on the bottom side of the connecting piece, the upper end of the support frame is rotatably connected to the transfer portion, and a clamping piece is provided on the lower end of the support frame for clamping in the clamping groove so that the support frame supports the connecting piece to be horizontally arranged; a spring is also provided in the guide seat, and the spring is used to push the positioning plate away from the top of the positioning cavity.

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