Wire harness end squaring device and welding machine

Abstract

The utility model relates to a wire harness end squaring device and a welding machine, the wire harness end squaring device comprises an upper electrode device and a lower electrode side squaring device; the upper electrode device comprises an upper electrode; the lower electrode side squaring device comprises a lower electrode, a lower electrode top limiting block, a wire harness end arrangement mechanism and a rear end pressing mechanism; the rear side face of the top limiting block of the lower electrode, the front side face of the rear end pressing block, the right side face of the end limiting rod and the working plane of the top of the lower electrode define a rectangular space which is used for storing the end of the wire harness to be welded and is closed in four faces. A wire harness end squaring welding machine comprises a welding machine body and a wire harness end squaring device. According to the utility model, automatic squaring and welding of the end part of the wire harness can be realized, automatic arrangement, squaring and welding are realized in the welding process, and the automation degree is high; the size of each part can be flexibly adjusted, and the welding requirements of square terminals with different sizes and specifications can be met; and maintenance and adjustment after welding abrasion can be met, and the use and maintenance cost is low.

Description

Technical Field

[0001] The utility model relates to a wire harness end squaring device and a welding machine equipped with the device, which is used for producing wire harnesses with square terminals and belongs to the field of welding machine equipment. Background Art

[0002] The wiring harness is generally a round conductor. When welding the wiring harness to a copper busbar, it is often necessary to punch and bend the end of the copper busbar into a round terminal, and then press the wiring harness into the round terminal before welding to ensure a reliable connection between the wiring harness and the copper busbar.

[0003] However, when using a copper foil flexible connector, since the end is not adjustable by punching and bending into a round terminal, it is necessary to find a way to weld the wire harness directly to the copper foil flexible connector. At this time, the end of the wire harness can be made into a square terminal so that it is aligned with the welding plane, and the copper wires in the square terminal of the wire harness are required to be arranged as closely as possible, thereby increasing the reliability of the connection and the reliability of conductivity.

[0004] In order to process the end of the wire harness into a square terminal, a special welding machine is required, and a special mold is set on the welding machine. The end of the wire harness is embedded in the mold, and then welded, so that the end of the wire harness is pressed into a square, and the internal copper wires are welded together to finally form a square wire harness terminal.

[0005] However, there is wear during the compression welding process of the wire harness end. If a special mold is used, the manufacturing cost is high. Once significant wear occurs, the mold can only be replaced for the quality of the wire harness end, which makes the maintenance and replacement cost very high, and the replacement and debugging process is time-consuming and labor-intensive.

[0006] Therefore, for the square welding process of the wire harness end, it is necessary to design a set of square welding devices specifically suitable for the welding machine, so as to improve the square welding efficiency and reduce the maintenance cost. Utility Model Content

[0007] The utility model aims to provide a wire harness end squaring device and a welding machine. Aiming at the squaring welding requirements of the wire harness ends, a special wire harness end squaring device is designed and installed on the welding machine, so that the squaring welding process of the wire harness ends is simple and convenient to operate, and the use and maintenance cost of the device is low, and the maintenance and adjustment process is simple.

[0008] In order to achieve the above-mentioned utility model object, the utility model provides a wire harness end squaring device in a first aspect, comprising an upper electrode device and a lower electrode side squaring device;

[0009] An upper electrode device, comprising an upper electrode;

[0010] The lower electrode side pressing device includes the lower electrode, and a lower electrode top limit block, a wire harness end finishing mechanism, and a rear end pressing mechanism;

[0011] The lower electrode top stopper is fixedly mounted on the front side of the lower electrode, and the working plane of the top of the lower electrode always contacts the bottom of the lower electrode top stopper;

[0012] The wire harness end finishing mechanism comprises an end limit rod, a mounting seat, and left and right driving cylinders; the end limit rod has a limit end face; the end limit rod is mounted on the piston rods of the left and right driving cylinders through the mounting seat; the cylinder bodies of the left and right driving cylinders are arranged along the left and right directions and are arranged on the left side of the lower electrode; the limit end face of the right end of the end limit rod can abut against the left side of the lower electrode;

[0013] The rear end clamping mechanism comprises a rear end clamping block and a front and rear driving mechanism; the rear end clamping block is mounted on the output element of the front and rear driving mechanism, and the front end surface of the front side of the rear end clamping block can abut against the rear side of the lower electrode;

[0014] The rear side surface of the lower electrode top limit block, the front side surface of the rear end clamping block, the right side surface of the end limit rod, and the working plane of the lower electrode top form a four-sided closed rectangular space for storing the end of the wire harness to be welded;

[0015] The bottom surface of the upper electrode is located at the top of the four-sided rectangular space for storing the end of the wire bundle to be welded, thereby forming a five-sided closed rectangular space for storing the end of the wire bundle to be welded.

[0016] As a further improvement of the utility model, the upper electrode device comprises an upper electrode mounting fixed seat, an upper electrode mounting slide seat, a front and rear adjustment mechanism, and an upper electrode clamping block;

[0017] The upper electrode is clamped and fixed on the upper electrode mounting portion of the upper electrode mounting slide by an upper electrode clamping block;

[0018] The upper electrode protrudes downward to form a working head;

[0019] The upper electrode mounting slide is provided with a mounting adjustment hole in the form of a long strip of light holes, through which a screw passes and is screwed into a screw hole of the upper electrode mounting fixing seat;

[0020] A front-rear adjustment mechanism with a threaded adjustment mechanism is arranged between the upper electrode mounting fixed seat and the upper electrode mounting sliding seat.

[0021] As a further improvement of the utility model, the lower electrode side pressing device also includes an integral front and rear adjustment platform;

[0022] The integral front-rear adjustment platform includes a lower fixed platform and a lower sliding platform; the two are connected by a threaded adjustment mechanism;

[0023] The lower electrode, the lower electrode top limit block, the wire harness end finishing mechanism, and the rear end clamping mechanism are all installed on the lower sliding table.

[0024] As a further improvement of the utility model, in the wire harness end arrangement mechanism, the end limit rod is a long rod;

[0025] Mounting protrusions are provided on both sides of the mounting seat, and a long strip-shaped mounting groove is formed on the inner side of the mounting seat, and the rod body of the end limit rod is embedded in the mounting groove;

[0026] The end limit rod is a long square rod, the mounting groove is a square groove, and the rod body of the end limit rod can be adjusted to the left and right position in the mounting groove;

[0027] A threaded through hole is arranged on the mounting protrusion of the mounting seat, a tightening screw is screwed into the threaded through hole, and the end of the tightening screw abuts against the side surface of the rod body of the end limit rod.

[0028] As a further improvement of the utility model, the top limit block of the lower electrode is fixed by a limit bridge, and the limit bridge is arranged above the lower electrode;

[0029] The upper part of the limiting bridge is provided with a lower electrode top limiting block via a pressing plate;

[0030] The top limit block of the lower electrode is a long strip block arranged horizontally;

[0031] The lower electrode top limiting block has a vertical facade.

[0032] As a further improvement of the utility model, the lower electrode side pressing device also includes a harness bracket;

[0033] The upper surface of the harness bracket is flush with the top of the lower electrode.

[0034] As a further improvement of the utility model, the lower electrode side pressing device also includes a lower electrode height adjustment mechanism;

[0035] The lower electrode height adjustment mechanism comprises a guide block, a lower electrode limit plate, an adjustment seat, an adjustment bolt, and an adjustment bevel block;

[0036] The guide block comprises a block body, a horizontal guide groove is formed at the bottom of the block body, a vertical guide groove is formed at the rear side of the block body, and the horizontal guide groove is connected with the vertical guide groove;

[0037] The adjusting bevel block is embedded in the horizontal guide groove, and the adjusting bevel block can move forward and backward along the guide block;

[0038] The rear side of the block is installed with a lower electrode limit plate by screws, and the lower electrode limit plate partially or completely closes the rear side of the vertical guide groove. The lower electrode is embedded in the vertical guide groove, and the lower electrode can move up and down along the vertical guide groove.

[0039] The contact part between the adjusting inclined block and the lower electrode is provided with inclined surfaces, which are the adjusting inclined surface and the lower electrode bottom inclined surface;

[0040] The adjusting bevel block is connected with the guide block and the guide block mounting platform through the adjusting seat and the adjusting bolt;

[0041] The adjustment seat is fixed at the front end;

[0042] The front part of the adjusting bolt is rotatably mounted in the adjusting seat;

[0043] An adjusting screw hole is arranged at the front part of the guide groove of the adjusting bevel block, and the screw rod part of the adjusting bolt is screwed into the adjusting screw hole.

[0044] As a further improvement of the utility model, the front and rear drive mechanism of the rear end clamping mechanism includes a rear end clamping seat, a pressure plate, front and rear slides, a clamping drive cylinder, a clamping drive inclined block, a limit block, and a reset spring;

[0045] The rear end pressing block is fixedly installed in the rear end pressing seat through a pressing plate; the rear end pressing block protrudes forward from the rear end pressing seat;

[0046] The rear side of the rear end pressing seat is provided with a passive inclined surface in the left and right directions;

[0047] The clamping drive cylinder is fixed to the side of the platform where the rear-end clamping mechanism is located;

[0048] A pressing driving inclined block is installed at the end of the piston rod of the pressing driving cylinder, and a driving inclined surface in the left and right directions is arranged on the front side of the pressing driving inclined surface, and the driving inclined surface matches the passive inclined surface;

[0049] The rear side of the pressing driving inclined block is a flat surface in the left and right directions, and a limiting block is fixed on the outside, and the rear flat surface of the pressing driving inclined block abuts against the front side surface of the limiting block;

[0050] A return spring is arranged between the rear end pressing seat and the platform where the rear end pressing mechanism is located.

[0051] Furthermore, a front and rear slide table is provided between the rear end clamping seat and the platform where the rear end clamping mechanism is located;

[0052] A slide rail is installed on the platform where the rear-end clamping mechanism is located.

[0053] A slider is installed at the bottom of the rear end clamping seat.

[0054] The slide rail and the slider cooperate to form a linear guide mechanism for forward and backward movement.

[0055] Furthermore, a plurality of lifting springs are provided at the bottom of the rear end pressing block.

[0056] In a second aspect of the utility model, a wire harness end squaring welding machine is provided, comprising a welding machine body, and the wire harness end squaring device as described above;

[0057] Wherein, the upper electrode of the upper electrode device is connected to one electrode of the welding power source;

[0058] The upper electrode device is installed at the bottom of the vertical driving element, and the upper electrode device can be controlled to move downward;

[0059] The lower electrode side pressing device is fixed on the lower working table of the welding machine mainframe, and the lower electrode is connected to the other pole of the welding power supply.

[0060] Before using the wire harness end squaring device of the wire harness end squaring welding machine of the utility model, the relative position is adjusted first:

[0061] (1) Adjust the front and rear adjustment mechanism to adjust the front and rear position of the upper electrode on the upper workbench of the welding machine host;

[0062] (2) Adjust the adjustment bolts of the overall front and rear adjustment table to adjust the front and rear position of the lower electrode on the lower workbench of the welding machine host;

[0063] (3) adjusting the pressing plate, thereby adjusting the position of the top stopper of the lower electrode on the working plane of the lower electrode, thereby adjusting the width size of the square terminal of the final product wiring harness;

[0064] (4) Adjust the adjusting bolt of the lower electrode height adjustment mechanism so that the working plane of the lower electrode always rests against the bottom of the lower electrode top limit block without leaving a gap, thereby preventing the copper wire of the wiring harness from entering the gap and forming the final square terminal quality.

[0065] After adjustment, continuous welding operation is carried out:

[0066] (5) Place the wire harness of the terminal to be welded on the wire harness bracket, and place the end of the wire harness (the part to be welded) on the working plane of the lower electrode, with one side close to the rear side of the top limit block of the lower electrode, and the end of the wire harness preferably slightly exceeds the left side of the working plane of the lower electrode;

[0067] (6) Start the left and right drive cylinders of the wire harness end finishing mechanism and the clamping drive cylinder of the rear end clamping mechanism; the two cylinders work simultaneously or successively;

[0068] (6.1) The end stopper moves to the right and contacts the left side of the lower electrode, aligning the end (left side) of the wire harness;

[0069] (6.2) The rear end clamping block moves forward and reaches the rear side of the lower electrode, limiting the entire rear side of the wiring harness on the working plane of the lower electrode;

[0070] At this time, the rear side surface of the limit block at the top of the lower electrode, the front side surface of the rear end clamping block, the right side surface of the end limit rod, and the working plane at the top of the lower electrode surround and form a four-sided closed rectangular space for storing the end of the wire harness to be welded;

[0071] (7) The welding machine main unit is operated to press the upper electrode device downward, and the upper electrode moves downward from the upper side of the end of the wire harness to be welded, thereby lowering the height of the rectangular space, and then pressing and compacting the end of the wire harness to be welded in the rectangular space; then the welding power source is operated to weld the copper wires at the end of the wire harness together to form a square terminal.

[0072] (8) After welding is completed, disconnect the welding power source, raise the upper electrode, and then retract the left and right drive cylinders and the clamping drive cylinder to release the space for the wire harness terminal and remove the welded wire harness; place a new wire harness to be welded, and repeat steps (5), (6), and (7).

[0073] The wire harness end squaring device and welding machine of the utility model can realize automatic squaring welding of the wire harness end, and the welding process can automatically arrange, square and weld, with a high degree of automation; and the sizes of various components can be flexibly adjusted to meet the welding needs of square terminals of different sizes and specifications; and it can meet the maintenance and adjustment after welding wear, with low maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0074] Figure 1 It is a schematic diagram of the overall structure of the wire harness end square welding machine of the utility model;

[0075] Figure 2 It is a schematic diagram of the overall structure of the wire harness end squaring device of the utility model;

[0076] Figure 3 is a schematic diagram of the overall structure of the upper electrode device;

[0077] Figure 4 It is a schematic diagram of the overall structure of the lower electrode side pressing device;

[0078] Figure 5 It is a schematic diagram of the overall structure of the overall front and rear adjustment platform of the lower electrode side pressing device;

[0079] Figure 6 It is a schematic diagram of the overall structure of the wiring harness end (left end) arranging mechanism of the lower electrode side squaring device;

[0080] Figure 7 It is a side view of the wiring harness end (left end) finishing mechanism of the lower electrode side squaring device;

[0081] Figure 8 The overall structure of the adjustment mechanism of the lower electrode of the lower electrode side pressing device is shown in FIG. Figure 1 ;

[0082] Fig. 9 The overall structure of the adjustment mechanism of the lower electrode of the lower electrode side pressing device is shown in FIG. Figure 2 ;

[0083] Fig.10 The overall structure of the adjustment mechanism of the lower electrode of the lower electrode side pressing device is shown in FIG. Figure 3 ;

[0084] Fig.11 It is a schematic diagram of the overall structure of the height adjustment mechanism of the lower electrode of the lower electrode side pressing device;

[0085] Fig.12 It is a schematic diagram of the overall structure of the guide block of the height adjustment mechanism of the lower electrode;

[0086] Fig.13 is a schematic diagram of the internal structure of the height adjustment mechanism of the lower electrode;

[0087] Fig.14 is a cross-sectional view of the height adjustment mechanism of the lower electrode, i.e., a height adjustment principle diagram;

[0088] Fig.15 It is a schematic diagram of the overall structure of the rear end clamping mechanism of the lower electrode side pressing device;

[0089] Fig.16 It is a top view of the rear end clamping mechanism of the lower electrode side clamping device, that is, a forward clamping principle diagram;

[0090] Fig.17 It is a schematic diagram of the overall structure of the front and rear motion units of the rear end clamping mechanism;

[0091] Fig.18 It is a schematic diagram of the overall structure of the pressure head component of the rear-end clamping mechanism;

[0092] Fig.19 It is an internal cross-sectional view of the pressure head component of the rear end clamping mechanism. DETAILED DESCRIPTION

[0093] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0094] like Figure 1 As shown in the figure, it is a schematic diagram of the overall structure of the wire harness end pressure welding machine of the utility model, using a high frequency welding machine to pressure weld the end of the wire harness, especially using Figure 2 The wire harness end squaring device shown limits and arranges the wire harness end, and then pressurizes and welds it, so that the wire harness finally obtains a square terminal that is easy to use.

[0095] The utility model discloses a wire harness end squaring welding machine, comprising a welding machine mainframe 1, an upper electrode device 2, and a lower electrode side squaring device 3; the upper electrode device 2 is connected to one pole of a welding power source and is installed at the bottom of a vertical driving element, and the upper electrode device 2 can be controlled to move downward; and the lower electrode side squaring device 3 is fixed on a lower workbench of the welding machine mainframe 1, and is connected to the other pole of the welding power source.

[0096] When the wire harness end squaring welding machine of the utility model is used, the end of the wire harness to be processed is first placed in the lower electrode side squaring device 3, and the moving parts move to arrange and limit the end of the wire harness; then the upper electrode device 2 moves downward, and applies pressure downward from the top of the end of the wire harness to press the end of the wire harness in the direction chamber; then the upper and lower electrodes are energized, the upper and lower electrodes clamp the end of the wire harness, and an instantaneous large current passes through the end of the wire harness, generating instantaneous heat, melting the ends of the wire harness together, and then forming a square terminal.

[0097] like Figure 2 , Figure 4 As shown, the lower electrode side pressing device 3 takes the lower electrode 32 as the center, and is surrounded by an integral front and rear adjustment platform 4, a wire harness end tidying mechanism 5, a lower electrode height adjustment mechanism 6, a rear end clamping mechanism 7, and a wire harness bracket 8; wherein, the integral front and rear adjustment platform 4 and the lower electrode height adjustment mechanism 6 are manual adjustment devices, which are pre-adjusted before use so that the position and height of the lower electrode match the upper electrode; and, the wire harness end tidying mechanism 5 and the rear end clamping mechanism 7 are starting drive mechanisms, and before use, the cylinder piston rod is retracted, so that the placement cavity space of the wire harness end is larger, which is convenient for placing the wire harness end. When in use, the cylinder piston rod is extended to limit the left end and the rear end of the placement cavity of the wire harness end to form a suitable direction chamber, and the copper wire of the wire harness end is pressed inward during the process.

[0098] like Figure 3 As shown, the upper electrode device 2 is a mounting device for convenient adjustment and replacement of the upper electrode 24 , including an upper electrode mounting fixing seat 21 , an upper electrode mounting slide seat 22 , a front and rear adjustment mechanism 23 , and an upper electrode clamping block 25 .

[0099] The upper electrode mounting seat 21 is fixed on the upper workbench of the welding machine main unit 1; the upper electrode 24 is clamped and fixed on the upper electrode mounting portion 221 of the upper electrode mounting slide 22 by the upper electrode clamping block 25, and the upper electrode 24 protrudes downward to form a working head; the upper electrode mounting slide 22 is provided with a mounting adjustment hole 222, which is a long strip-shaped light hole, through which a screw can pass, and then screwed into the screw hole of the upper electrode mounting seat 21, so as to fix the upper electrode mounting slide 22 to the bottom of the upper electrode mounting seat 21.

[0100] Furthermore, a front-to-back adjustment mechanism 23 is provided between the upper electrode mounting fixed seat 21 and the upper electrode mounting slide 22; the upper electrode mounting slide 22 is slidably mounted in the upper electrode mounting fixed seat 21, and the upper electrode mounting fixed seat 21 is provided with a sliding groove for the upper electrode mounting slide 22 to slide and guide, or can slide and guide through the combination of the mounting adjustment hole 222 and the screw; the front-to-back adjustment mechanism 23 is a threaded adjustment mechanism, the screw is rotatably mounted on the upper electrode mounting fixed seat 21 through the bracket, and the end of the screw is screwed into the screw hole of the upper electrode mounting slide 22, and the length of the screw in the screw hole of the upper electrode mounting slide 22 can be adjusted by rotating the screw, thereby adjusting the front-to-back position of the upper electrode mounting slide 22 on the upper electrode mounting fixed seat 21, and can particularly achieve precise adjustment; after the adjustment is completed, the screw in the mounting adjustment hole 222 of the upper electrode mounting slide 22 can be locked. The bolt head of the adjustment screw of the front-to-back adjustment mechanism 23 faces forward, which is convenient for workers to perform adjustment operations.

[0101] The specific structure of the overall front and rear adjustment platform 4 is as follows: Figure 5 As shown, it includes a lower fixed platform 41 and a lower sliding platform 42, which are also connected by a set of thread adjustment mechanisms to achieve front and rear position adjustment.

[0102] The threaded adjustment mechanism includes an adjusting seat 43 and an adjusting bolt 44. The adjusting seat 43 is fixed to the front end of the lower fixed platform 41. A through hole or a through groove is opened on the adjusting seat 43, and the through groove 431 is used in this embodiment; the adjusting bolt 44 is installed in the through hole or the through groove 431, and the bolt head 441 is exposed on the outside (front side) of the adjusting seat 43, so that the worker can turn the adjusting bolt 44 by hand or with a wrench; a screw hole is provided at the front end of the lower sliding platform 42, and the rear side of the adjusting bolt 44 is screwed into the front end screw hole of the lower sliding platform 42; by rotating and screwing the adjusting bolt 44, the screw part of the adjusting bolt 44 can be screwed in the front end screw hole of the lower sliding platform 42, thereby adjusting the size of the screw part of the adjusting bolt 44 in the front end screw hole of the lower sliding platform 42, and finally adjusting the position of the lower sliding platform 42 relative to the adjusting seat 43 and the lower fixed platform 41 in the front and rear directions.

[0103] Furthermore, a plurality of installation adjustment holes 422 are provided on the lower sliding platform 42 along the front-to-back direction. The fixing screws 47 pass through the installation adjustment holes 422 and are screwed into the screw holes of the lower fixed platform 41, which can be used to reliably fix the lower sliding platform 42 on the lower fixed platform 41. At the same time, the fixing screws 47 are loosened, and a sliding guide structure is formed between the fixing screws 47 and the installation adjustment holes 422, which can guide the front-to-back movement of the lower sliding platform 42.

[0104] Furthermore, a plurality of guide blocks 45 are provided on the left and right sides of the lower sliding platform 42. The guide blocks 45 are fixed to the lower fixed platform 41 by screws and are located on both sides of the lower sliding platform 42. The two sides of the lower sliding platform 42 are straight in the front-to-back direction, and the inner sides of the plurality of guide blocks 45 are straight in the front-to-back direction. The inner sides of the two sides of the lower sliding platform 42 and the guide blocks 45 form a guide for forward and backward movement. Furthermore, a threaded through hole is provided on the side of the guide block 45, and a tightening screw 46 is screwed inward from the outside. When the front-to-back position of the lower sliding platform 42 is adjusted to the right position, the tightening screw 46 can be tightened inward to press against the side of the lower sliding platform 42 to achieve position locking. Furthermore, a boss 423 is provided on the side of the lower sliding platform 42, which can form a limit with the front end or rear end of the guide block 45 to avoid over-positioning forward or backward.

[0105] The specific structure of the wire harness end tidying mechanism 5 is as follows: Figure 6 , Figure 7 As shown, it includes an end limit rod 51, a mounting seat 52, and left and right driving cylinders 53; the end limit rod 51 is a long bar with a limit end face 511; mounting protrusions 521 are provided on both sides of the mounting seat 52, so that a long strip-shaped mounting groove 522 is formed on the inner side, and the rod body 512 of the limit rod 51 is embedded in the mounting groove 522. Preferably, the limit rod 51 is a long square rod, and the mounting groove 522 is a square groove. The rod body 512 of the limit rod 51 can be adjusted to the left and right position in the mounting groove 522; the mounting seat A threaded through hole 523 is provided on the mounting protrusion 521 of 52. A tightening screw is screwed in and tightened inward so that the end of the tightening screw abuts against the side of the rod body 512 of the limiting rod 51, so that the limiting rod 51 can be fixed in the mounting seat 52. By loosening the tightening screw, the installation position of the limiting rod 51 can be adjusted. In particular, when the limiting end face 511 of the limiting rod 51 is worn, it can be re-grinded to form a new limiting end face 511, and then the installation position of the limiting rod 51 can be readjusted to achieve repositioning and use.

[0106] The left and right driving cylinders 53 are preferably guide rail slide cylinders, and the ends of the piston rods 532 are fixed with guide plates 54, which are L-shaped plates, one side of which is a driving plate fixed to the piston rods 532 to achieve driving movement; the other side is a slide plate 542 that cooperates with the guide block 55 in the cylinder side wall of the cylinder to achieve the guidance of the left and right linear movement. The mounting seat 52 is fixed on the slide plate 542.

[0107] The specific structure of the installation and adjustment device of the lower electrode 32 is as follows: Figure 8 , Fig. 9 , Fig.10As shown; the lower electrode 32 is installed on the lower sliding platform 42 through the lower electrode height adjustment mechanism 6, and the lower electrode 32 can be adjusted in the lower electrode height adjustment mechanism 6; further, a limiting bridge 33 is fixed on the lower fixed platform 41, and the limiting bridge 33 is arranged above the lower electrode height adjustment mechanism 6; the upper part of the limiting bridge 33 is installed with a lower electrode top limiting block 34 through a pressing plate 35, and the lower electrode top limiting block 34 has a vertical facade, and a part of the entity of the lower electrode top limiting block 34 is just located at the lower electrode 32 Directly above, the lower electrode 32 is pressed against the bottom of the lower electrode top limit block 34 by the lower electrode height adjustment mechanism 6, so that the lower electrode 32 contacts the lower electrode top limit block 34 to form an L-shaped chamber area for the end of the wire harness; by adjusting the overall front and rear adjustment table 4, that is, adjusting the position of the lower sliding table 42, the effective contact area between the lower electrode 32 and the lower electrode top limit block 34 can be adjusted (the installation position of the lower electrode top limit block 34 can also be adjusted by adjusting the pressure plate 35), thereby adjusting the size of the chamber area at the end of the wire harness.

[0108] The harness bracket 8 is fixed to the side of the limiting bridge 33 through the connecting frame 82 so that the upper surface of the harness bracket 8 is as flush as possible with the top of the lower electrode 32 , which facilitates the placement of the harness through the harness bracket 8 to the top of the lower electrode 32 .

[0109] The specific structure of the lower electrode height adjustment mechanism 6 is as follows: Fig.11 , Fig.12 , Fig.13 , Fig.14 As shown, it includes a guide block 61, a lower electric limit plate 62, an adjustment seat 63, an adjustment bolt 64, and an adjustment bevel block 65; wherein the specific structure of the guide block 61 is as follows Fig.12As shown, it includes a block 611, a horizontal guide groove 612 is provided at the bottom of the block 611, and a vertical guide groove 613 is provided on the rear side of the block 611, and the horizontal guide groove 612 is connected with the vertical guide groove 613; the guide block 61 is fixed on the lower sliding platform 42, and the bottom of the horizontal guide groove 612 is closed, and the adjusting inclined block 65 is embedded in the horizontal guide groove 612, and the adjusting inclined block 65 can move forward and backward along the guide block 61; the rear side of the block 611 is installed with a lower electric limit plate 62 by screws, and the lower electric limit plate 62 partially closes the rear side of the vertical guide groove 613, and the lower electrode 3 2 is embedded in the vertical guide groove 613, and the lower electrode 32 can move up and down along the vertical guide groove 613; the contact portion between the adjusting inclined block 65 and the lower electrode 32 is provided with inclined surfaces, namely, the adjusting inclined surface 651 and the lower electrode bottom inclined surface 322; when the adjusting inclined block 65 moves backward, the adjusting inclined surface 651 contacts the lower electrode bottom inclined surface 322, which is converted into an upward movement of the lower electrode 32; when the adjusting inclined block 65 moves forward, the adjusting inclined surface 651 is away from the lower electrode bottom inclined surface 322, and the lower electrode 32 descends due to gravity, so that the lower electrode bottom inclined surface 322 contacts the adjusting inclined surface 651.

[0110] The adjusting bevel block 65 is further connected to the lower sliding platform 42 and the guide block 61 through the adjusting seat 63 and the adjusting bolt 64; the adjusting seat 63 is fixed to the front end of the lower sliding platform 42; the front part of the adjusting bolt 64 is rotatably installed in the adjusting seat 63; the front part of the guide groove of the adjusting bevel block 65 is provided with an adjusting screw hole 652, and the screw part of the adjusting bolt 64 is screwed into the adjusting screw hole 652; by rotating the adjusting bolt 64, the adjusting bevel block 65 can be driven to move forward and backward relative to the adjusting seat 63, the lower sliding platform 42 and the guide block 61; in particular, By rotating the adjusting bolt 64, the adjusting bevel block 65 moves backward, and the adjusting bevel 651 contacts the bottom bevel 322 of the lower electrode to redirect the movement, so that the lower electrode 32 is pushed upward, so that the working plane 321 at the top of the lower electrode 32 is always against the bottom of the lower electrode top limit block 34. Even if the lower electrode 32 is worn during use, its height can be conveniently adjusted to always be against the bottom of the lower electrode top limit block 34, forming an L-shaped chamber area for placing the end of the wiring harness.

[0111] The specific structure of the rear end clamping mechanism 7 is as follows: Fig.15 , Fig.16 , Fig.17 , Fig.18 , Fig.19 As shown, it includes a rear end clamping block 71, a lifting spring 72, a rear end clamping seat 73, a pressure plate 74, front and rear slides 75, a clamping drive cylinder 76, a clamping drive inclined block 77, a limit block 78, and a return spring 79.

[0112] The rear end clamping block 71 is installed in the rear end clamping seat 73 and can be driven to move forward and backward. When the rear end clamping block 71 moves forward, the front end surface 711 of the rear end clamping block 71 abuts against the side surface of the lower electrode 32; thereby, the rear side surface of the lower electrode top limit block 34, the top surface of the lower electrode 32, and the front side surface of the rear end clamping block 71 are surrounded together to form three limit surfaces of the rectangular groove.

[0113] Furthermore, a plurality of lifting springs 72 are provided at the bottom of the rear end clamping block 71, and the top of the rear end clamping block 71 is limited by a pressure plate 74; in this way, when the upper electrode 24 is pressed down during operation, a part of it is located directly above the lower electrode 32, and a part of it is pressed against the upper surface 712 of the rear end clamping block 71. During the downward pressing process of the upper electrode 24, the rear end clamping block 71 is pressed down together to reduce the height of the rectangular chamber area for supplying and releasing the end of the wiring harness, thereby pressing and compacting the copper wires of the wiring harness, and then welding is performed to form a dense square terminal.

[0114] The rear side of the rear end clamping seat 73 is provided with a passive inclined surface 732 in the left and right directions; the clamping drive cylinder 76 is fixed to the side of the lower sliding platform 42, and the end of the piston rod 761 of the clamping drive cylinder 76 is installed with a clamping drive inclined block 77, and the front side of the clamping drive inclined block 77 is provided with a driving inclined surface 771 in the left and right directions, and the driving inclined surface 771 cooperates with the passive inclined surface 732; the rear side of the clamping drive inclined block 77 is a flat surface in the left and right directions, and a limiting block 78 is fixed on the outside, and the rear side flat surface of the clamping drive inclined block 77 abuts against the front side surface of the limiting block 78, that is, forming a sliding guide, and providing support force for the clamping drive inclined block 77; when working, the piston rod 761 of the clamping drive cylinder 76 drives the clamping drive inclined block 77 to extend, and the driving inclined surface 771 moves to the left to squeeze the passive inclined surface 732, thereby converting it into a forward movement of the rear end clamping seat 73 and the rear end clamping block 71.

[0115] Furthermore, a return spring 79 is provided between the rear end clamping seat 73 and the lower sliding platform 42. When the rear end clamping seat 73 is driven by the clamping drive cylinder 76 to move forward, the return spring 79 is stretched; when the clamping drive cylinder 76 is reset, the piston rod 761 drives the clamping drive bevel block 77 to move to the right, and at this time, the rear end clamping seat 73 is pulled backward by the return spring 79 to reset.

[0116] Furthermore, a front and rear slide platform 75 is provided between the rear end clamping seat 73 and the lower slide platform 42. A slide rail 751 is installed on the lower slide platform 42, and a slider 752 is installed at the bottom of the rear end clamping seat 73. The slide rail 751 cooperates with the slider 752 to ensure stable and reliable forward and backward movement of the rear end clamping seat 73.

[0117] Before using the wire harness end squaring device of the wire harness end squaring welding machine of the utility model, the relative position is adjusted first:

[0118] (1) Adjusting the front-to-back adjustment mechanism 23, thereby adjusting the front-to-back position of the upper electrode 24 on the upper workbench of the welding machine mainframe 1;

[0119] (2) adjusting the adjustment bolt 44 of the integral front-rear adjustment platform 4, thereby adjusting the front-rear position of the lower electrode 32 on the lower side workbench of the welding machine mainframe 1;

[0120] (3) adjusting the pressing plate 35, thereby adjusting the position of the lower electrode top stopper 34 on the working plane 321 of the lower electrode 32, thereby adjusting the width dimension of the square terminal of the final product wiring harness;

[0121] (4) Adjust the adjusting bolt 64 of the lower electrode height adjustment mechanism 6 so that the working plane 321 of the lower electrode 32 always rests against the bottom of the lower electrode top limit block 34 without leaving a gap, thereby preventing the copper wire of the wiring harness from entering the gap and forming the quality of the final square terminal.

[0122] After adjustment, continuous welding operation is carried out:

[0123] (5) Place the wire harness of the terminal to be welded on the wire harness bracket 8, and place the end of the wire harness (the part to be welded) on the working plane 321 of the lower electrode 32, with one side close to the rear side of the lower electrode top stopper 34, and the end of the wire harness preferably slightly exceeds the left side of the working plane 321 of the lower electrode 32;

[0124] (6) Start the left and right drive cylinders 53 of the wire harness end finishing mechanism 5 and the clamping drive cylinder 76 of the rear end clamping mechanism 7; the two cylinders work simultaneously or successively;

[0125] (6.1) The end stopper rod 51 moves to the right and contacts the left side of the lower electrode 32 to align the end (left side) of the wire harness;

[0126] (6.2) The rear end clamping block 71 moves forward and contacts the rear side of the lower electrode 32, so that the rear side of the wire harness is completely positioned on the working plane 321 of the lower electrode 32;

[0127] At this time, the front side of the end of the wire harness to be welded is limited by the rear side of the lower electrode top limit block 34;

[0128] The rear side of the end of the wire harness to be welded is limited by the front side of the rear end clamping block 71;

[0129] The left side of the end of the wire harness to be welded is limited by the right side of the end limiting rod 51;

[0130] The lower side of the end of the wire harness to be welded is limited by the working plane 321 of the lower electrode 32;

[0131] Form a four-sided rectangular space;

[0132] (7) The welding machine main unit 1 is operated to press the upper electrode device 2 downward, and the upper electrode 24 moves downward from the upper side of the end of the wire harness to be welded, thereby lowering the height of the rectangular space, and then pressing and compacting the end of the wire harness to be welded in the rectangular space; then the welding power supply is operated to weld the copper wires at the end of the wire harness together to form a square terminal.

[0133] (8) After welding is completed, disconnect the welding power supply, raise the upper electrode 24, and then retract the left and right drive cylinders 53 and the clamping drive cylinder 76 to release the space for the wire harness terminal and remove the welded wire harness; put a new wire harness to be welded, and repeat steps (5), (6), and (7).

[0134] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope defined by the claims of this application.

Claims

1. A wire harness end squaring device, characterized in that: It includes an upper electrode device and a lower electrode side pressing device; An upper electrode device, comprising an upper electrode; The lower electrode side pressing device includes the lower electrode, and a lower electrode top limit block, a wire harness end finishing mechanism, and a rear end pressing mechanism; The lower electrode top stopper is fixedly mounted on the front side of the lower electrode, and the working plane of the top of the lower electrode always contacts the bottom of the lower electrode top stopper; The wire harness end finishing mechanism comprises an end limit rod, a mounting seat, and left and right driving cylinders; the end limit rod has a limit end face; the end limit rod is mounted on the piston rods of the left and right driving cylinders through the mounting seat; the cylinder bodies of the left and right driving cylinders are arranged along the left and right directions and are arranged on the left side of the lower electrode; the limit end face of the right end of the end limit rod can abut against the left side of the lower electrode; The rear end clamping mechanism comprises a rear end clamping block and a front and rear driving mechanism; the rear end clamping block is mounted on the output element of the front and rear driving mechanism, and the front end surface of the front side of the rear end clamping block can abut against the rear side of the lower electrode; The rear side surface of the lower electrode top limit block, the front side surface of the rear end clamping block, the right side surface of the end limit rod, and the working plane of the lower electrode top form a four-sided closed rectangular space for storing the end of the wire harness to be welded; The bottom surface of the upper electrode is located at the top of the four-sided rectangular space for storing the end of the wire bundle to be welded, thereby forming a five-sided closed rectangular space for storing the end of the wire bundle to be welded.

2. The wire harness end squaring device according to claim 1, characterized in that: The upper electrode device comprises an upper electrode mounting fixed seat, an upper electrode mounting slide seat, a front and rear adjustment mechanism, and an upper electrode clamping block; The upper electrode is clamped and fixed on the upper electrode mounting portion of the upper electrode mounting slide by an upper electrode clamping block; The upper electrode protrudes downward to form a working head; The upper electrode mounting slide is provided with a mounting adjustment hole in the form of a long strip of light holes, through which a screw passes and is screwed into a screw hole of the upper electrode mounting fixing seat; A front-rear adjustment mechanism with a threaded adjustment mechanism is arranged between the upper electrode mounting fixed seat and the upper electrode mounting sliding seat.

3. The wire harness end squaring device according to claim 1, characterized in that: The lower electrode side pressing device also includes an integral front and rear adjustment platform; The integral front-rear adjustment platform includes a lower fixed platform and a lower sliding platform; the two are connected by a threaded adjustment mechanism; The lower electrode, the lower electrode top limit block, the wire harness end finishing mechanism, and the rear end clamping mechanism are all installed on the lower sliding table.

4. The wire harness end squaring device according to claim 1, characterized in that: In the wire harness end arrangement mechanism, the end limit rod is a long rod; Mounting protrusions are provided on both sides of the mounting seat, and a long strip-shaped mounting groove is formed on the inner side of the mounting seat, and the rod body of the end limit rod is embedded in the mounting groove; The end limit rod is a long square rod, the mounting groove is a square groove, and the rod body of the end limit rod can be adjusted to the left and right position in the mounting groove; A threaded through hole is arranged on the mounting protrusion of the mounting seat, a tightening screw is screwed into the threaded through hole, and the end of the tightening screw abuts against the side surface of the rod body of the end limit rod.

5. The wire harness end squaring device according to claim 1, characterized in that: The top limit block of the lower electrode is fixed by a limit bridge, and the limit bridge is arranged across the top of the lower electrode; The upper part of the limiting bridge is provided with a lower electrode top limiting block via a pressing plate; The top limit block of the lower electrode is a long strip block arranged horizontally; The lower electrode top limiting block has a vertical facade.

6. The wire harness end squaring device according to claim 1, characterized in that: The lower electrode side pressing device also includes a harness bracket; The upper surface of the harness bracket is flush with the top of the lower electrode.

7. The wire harness end squaring device according to claim 1, characterized in that: The lower electrode side pressing device also includes a lower electrode height adjustment mechanism; The lower electrode height adjustment mechanism comprises a guide block, a lower electrode limit plate, an adjustment seat, an adjustment bolt, and an adjustment bevel block; The guide block comprises a block body, a horizontal guide groove is formed at the bottom of the block body, a vertical guide groove is formed at the rear side of the block body, and the horizontal guide groove is connected with the vertical guide groove; The adjusting bevel block is embedded in the horizontal guide groove, and the adjusting bevel block can move forward and backward along the guide block; The rear side of the block is installed with a lower electrode limit plate by screws, and the lower electrode limit plate partially or completely closes the rear side of the vertical guide groove. The lower electrode is embedded in the vertical guide groove, and the lower electrode can move up and down along the vertical guide groove. The contact part between the adjusting inclined block and the lower electrode is provided with inclined surfaces, which are the adjusting inclined surface and the lower electrode bottom inclined surface; The adjusting bevel block is connected with the guide block and the guide block mounting platform through the adjusting seat and the adjusting bolt; The adjustment seat is fixed at the front end; The front part of the adjusting bolt is rotatably mounted in the adjusting seat; An adjusting screw hole is arranged at the front part of the guide groove of the adjusting bevel block, and the screw rod part of the adjusting bolt is screwed into the adjusting screw hole.

8. The wire harness end squaring device according to claim 1, characterized in that: The front and rear drive mechanism of the rear end clamping mechanism includes a rear end clamping seat, a clamping plate, front and rear slides, a clamping drive cylinder, a clamping drive inclined block, a limit block, and a return spring; The rear end pressing block is fixedly installed in the rear end pressing seat through a pressing plate; the rear end pressing block protrudes forward from the rear end pressing seat; The rear side of the rear end pressing seat is provided with a passive inclined surface in the left and right directions; The clamping drive cylinder is fixed to the side of the platform where the rear-end clamping mechanism is located; A pressing driving inclined block is installed at the end of the piston rod of the pressing driving cylinder, and a driving inclined surface in the left and right directions is arranged on the front side of the pressing driving inclined surface, and the driving inclined surface matches the passive inclined surface; The rear side of the pressing driving inclined block is a flat surface in the left and right directions, and a limiting block is fixed on the outside, and the rear flat surface of the pressing driving inclined block abuts against the front side surface of the limiting block; A return spring is arranged between the rear end pressing seat and the platform where the rear end pressing mechanism is located.

9. The wire harness end squaring device according to claim 1, characterized in that: A plurality of lifting springs are arranged at the bottom of the rear end pressing block.

10. Wire harness end square welding machine, characterized in that: It comprises a welding machine body and a wire harness end squaring device as claimed in any one of claims 1 to 9; Wherein, the upper electrode of the upper electrode device is connected to one electrode of the welding power source; The upper electrode device is installed at the bottom of the vertical driving element, and the upper electrode device can be controlled to move downward; The lower electrode side pressing device is fixed on the lower working table of the welding machine mainframe, and the lower electrode is connected to the other pole of the welding power supply.

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