Jig for welding wire harness terminal

Abstract

The utility model relates to the technical field of wire harness terminal welding jigs, and discloses a wire harness terminal welding jig which comprises a welding table, a base horizontally installed on the bottom face of the welding table, a welding head arranged over the welding table and a welding pad arranged on the bottom face of the inner side of the welding table. Connecting columns are fixedly arranged on the two sides of the welding head correspondingly, and inner hexagonal holes are formed in the side faces, away from each other, of the two connecting columns correspondingly. Stable pressure of a hydraulic rod is utilized, welding work is more accurate and stable, meanwhile, a metal elastic piece is pushed to extrude an extrusion liquid bag through a connecting piece when a welding head moves downwards, two limiting ends are promoted to be close to each other under pushing of a T-shaped rod to limit the left-right width of a wire harness terminal, welding position deviation is avoided, and welding efficiency is improved. And meanwhile, a positioning column is arranged on the mounting plate on the left side, the connecting plate can be pulled open manually, so that the positioning column is far away from the connecting column on one side of the welding head, unlocking of the position of the welding head is completed, and after the welding head is adjusted, the connecting plate is released, so that the positioning column locks the current position of the welding head. The welding head can be quickly replaced only by moving the positioning column, so that the replacement efficiency of the welding head is improved, and the positioning column is a hexagonal prism, so that the welding head can stably move up and down before and after the position is adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of a jig for welding a wiring harness terminal, in particular to a jig for welding a wiring harness terminal. Background Art

[0002] With the vigorous development of the new energy vehicle industry, the demand for new energy batteries has also increased, and the update and iteration of power battery technology has also become the main battlefield of industry competition. The trend of new energy vehicles gradually replacing traditional fuel vehicles is becoming more and more obvious, which also provides new impetus for the development of new energy vehicles. In the manufacture of new energy batteries, high-power wiring harness terminal connectors are required. At present, high-power wiring harness terminal connectors need to use ultrasonic welding technology to ultrasonically weld large square wire harnesses and terminals together. When ultrasonically welding the wire harness and the terminal, the inventor found that there are at least the following technical problems in the prior art: On the one hand, the inaccurate terminal positioning often causes the welding position to shift, affecting the product yield;

[0003] The Chinese patent publication number is CN220122302U, a wire harness terminal welding tool and welding device, the welding tool includes a frame, a lifting plate, a support block and a clamping assembly, the support block is fixedly connected to the frame and used to support the terminal; the clamping assembly is installed on the lifting plate, the lifting plate moves up and down along the frame to link the clamping assembly to abut the left and right sides of the terminal; the clamping assembly has a limiting part, the limiting part is used to limit the wire harness to the terminal, and by adjusting the width of the limiting part, it is used to place different wire harnesses, thereby realizing the positioning of the wire harness and the terminal;

[0004] However, there are still the following disadvantages: when welding different wiring harness terminals, the welding head needs to be disassembled and replaced, and after replacement, it still takes time to adjust the position of the welding head.

[0005] Therefore, a jig for welding a wiring harness terminal has been proposed. Utility Model Content

[0006] The utility model aims to provide a jig for welding wiring harness terminals to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above purpose, the utility model provides the following technical solution: a fixture for welding a wiring harness terminal, comprising a welding table,

[0008] And the base installed horizontally on the bottom of the welding table,

[0009] A welding head is arranged directly above the welding platform and a welding pad is arranged on the inner bottom surface of the welding platform; connecting columns are fixedly arranged on both sides of the welding head, and two connecting columns are provided with hexagonal holes on the sides away from each other;

[0010] A lifting mechanism is provided below the welding head, the welding head is connected to the lifting mechanism through an adjusting mechanism, a limiting mechanism is provided inside the welding table, and the limiting mechanism is in contact with the front end of the lifting mechanism;

[0011] The adjustment mechanism includes a connecting portion and an adjustment portion;

[0012] The adjusting part is arranged on the connecting part;

[0013] The limiting mechanism comprises an extruding portion and a limiting portion, and the extruding portion is connected to the limiting portion.

[0014] Preferably, the lifting mechanism includes two left and right support frames, the bottom surfaces of the two support frames are fixedly connected to the top surface of the base, a support plate is slidably arranged inside the support frame, a hydraulic rod is arranged between the two support plates, the bottom surface of the hydraulic rod is fixedly connected to the top surface of the base, and the top end of the hydraulic rod output rod is fixedly connected to the side surfaces of the two support plates through a fixedly connected force-bearing plate.

[0015] Preferably, the top surfaces of the two support plates are horizontally fixed with connecting parts, the connecting part includes two mounting plates, the two mounting plates are respectively fixedly connected to the corresponding connecting parts, an adjustment groove is horizontally penetrated through the top surface of the left mounting plate, and the two connecting columns corresponding to the side surfaces of the two mounting plates are provided with rotating holes, and the two connecting columns extend into the two rotating holes.

[0016] Preferably, the adjusting part includes a positioning column, which is horizontally slidably arranged inside the left hexagonal hole and horizontally slidably connected to the inner wall of the hexagonal hole, the outer end of the positioning column sequentially penetrates the hexagonal hole and the left mounting plate to extend into the adjusting slot, and a connecting plate is horizontally slidably arranged inside the adjusting slot, the side surface of the connecting plate is fixedly connected to the side surface of the positioning column, the connecting plate is penetrated by light rods on the left and right, the side surface of the light rod is fixedly connected to the inner wall of the adjusting slot, a connecting spring 1 is sleeved on the surface of the light rod, and the left and right ends of the connecting spring 1 are respectively fixedly connected to the side surface of the connecting plate and the inner wall of the adjusting slot.

[0017] Preferably, the extrusion part includes a metal shrapnel and an extrusion liquid bag, an extrusion groove is vertically opened at the back side of the welding table corresponding to the front end position of the two connecting parts, the metal shrapnel is vertically arranged inside the extrusion groove, the front end of the metal shrapnel is fixedly connected to the inner wall of the extrusion groove, the extrusion liquid bag is arranged on the inner side of the metal shrapnel, the inner side surface of the metal shrapnel is in contact with the surface of the extrusion liquid bag, the inner wall of the extrusion groove is fixedly connected to the surface of the extrusion liquid bag, the front end of the connecting part extends to the corresponding extrusion groove and is in extrusion contact with the inclined surface of the rear end of the metal shrapnel, hydraulic oil is arranged inside the extrusion liquid bag, and a connecting spring 2 is horizontally arranged inside the extrusion liquid bag, and the two ends of the connecting spring 2 are respectively fixedly connected to the inner walls of the front and rear ends of the extrusion liquid bag.

[0018] Preferably, the limiting portion includes two limiting ends, which are symmetrically arranged on both sides of the welding pad, and the bottom surfaces of the limiting ends are slidably connected to the bottom surface of the welding platform. A hydraulic cavity is horizontally opened below the corresponding extrusion groove inside the welding platform, and a T-shaped rod is horizontally and sealingly slidably arranged inside the hydraulic cavity. The inner end of the T-shaped rod penetrates the inner wall of the hydraulic cavity and extends to the inner side of the welding platform and is connected to the corresponding limiting end by bolts. A connecting spring three is horizontally arranged inside the hydraulic cavity, and the three ends of the connecting spring are respectively fixedly connected to the outer end surface of the T-shaped rod and the inner wall of the hydraulic cavity.

[0019] Preferably, a connecting channel is opened inside the welding table between the hydraulic cavity and the extrusion groove, the bottom end of the connecting channel is connected to the inside of the outer end of the hydraulic cavity, and the upper end of the connecting channel is fixedly connected to the inside of the extrusion liquid bag in the extrusion groove.

[0020] Compared with the prior art, the utility model has the following beneficial effects: the wiring harness terminal welding jig is

[0021] 1) By setting up a lifting mechanism and using the stable pressure of the hydraulic rod, the welding work is made more accurate and stable. At the same time, the metal spring is pushed to squeeze the liquid capsule while the welding head moves down through the connecting piece, so that the two limit ends are pushed closer to each other by the T-bar to limit the left and right width of the wiring harness terminal and avoid welding position deviation;

[0022] 2) By setting up an adjustment mechanism and matching the connecting column with the rotating hole, the rotation replacement of the welding head is convenient. At the same time, a positioning column is set on the left mounting plate. The connecting plate can be manually pulled open so that the positioning column is away from the connecting column on one side of the welding head to unlock the welding head position. When the welding head is adjusted, the connecting plate is released so that the positioning column locks the current position of the welding head. The welding head can be quickly replaced only by moving the positioning column, which improves the efficiency of welding head replacement. The positioning column is set as a hexagonal column so that the welding head can move up and down stably before and after the position is adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a three-dimensional cross-sectional view of the overall structure of the utility model;

[0025] Figure 3 It is a three-dimensional schematic diagram of the overall internal structure of the utility model;

[0026] Figure 4 This is a three-dimensional schematic diagram of the front structure of the lifting mechanism of the utility model;

[0027] Figure 5 This is a three-dimensional schematic diagram of the welding head structure of the utility model;

[0028] Figure 6 For this utility model Figure 4 Enlarged view of area A in the middle;

[0029] Figure 7 For this utility model Figure 2 Enlarged view of area B.

[0030] In the figure: welding table 1, base 2, welding head 3, connecting column 31, lifting mechanism 4, support frame 41, support plate 42, connecting piece 43, hydraulic rod 44, adjusting mechanism 5, mounting plate 51, adjusting groove 52, rotating hole 53, positioning column 54, connecting plate 541, limiting mechanism 6, limiting end 61, extrusion groove 62, extrusion liquid capsule 63, metal spring 64, hydraulic cavity 65, connecting channel 66, T-bar 67. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0032] See also Figure 1-Figure 5 The utility model provides a technical solution: a fixture for welding a wiring harness terminal, comprising a welding table 1,

[0033] and a base 2 horizontally mounted on the bottom surface of the welding table 1,

[0034] A welding head 3 is arranged directly above the welding platform 1 and a welding pad is arranged on the inner bottom surface of the welding platform 1; connecting columns 31 are fixedly arranged on both sides of the welding head 3, and the two connecting columns 31 are provided with hexagonal holes on the sides away from each other;

[0035] A lifting mechanism 4 is provided below the welding head 3, and the welding head 3 is connected to the lifting mechanism 4 through an adjusting mechanism 5. A limiting mechanism 6 is provided inside the welding table 1, and the limiting mechanism 6 is in contact with the front end of the lifting mechanism 4;

[0036] The lifting mechanism 4 includes two left and right support frames 41, the bottom surfaces of the two support frames 41 are fixedly connected to the top surface of the base 2, a support plate 42 is slidably arranged inside the support frame 41, a hydraulic rod 44 is arranged between the two support plates 42, the bottom surface of the hydraulic rod 44 is fixedly connected to the top surface of the base 2, and the top end of the output rod of the hydraulic rod 44 is fixedly connected to the side surfaces of the two support plates 42 through a fixedly connected force plate;

[0037] The adjustment mechanism 5 includes a connecting portion and an adjustment portion;

[0038] The adjusting part is arranged on the connecting part;

[0039] The limiting mechanism 6 includes an extruding portion and a limiting portion, and the extruding portion is connected to the limiting portion.

[0040] Furthermore, in this embodiment, the metal spring 64 is pushed to squeeze the liquid capsule 63 by the connecting member 43 while the welding head 3 moves downward, so that the two limiting ends 61 are pushed to approach each other by the T-shaped rod 67 to limit the left and right widths of the wiring harness terminal;

[0041] Furthermore, in this embodiment, by providing a lifting mechanism 4 and utilizing the stable pressure of the hydraulic rod 44, the welding work is made more accurate and stable, and the welding position is prevented from being offset by providing an auxiliary movable limit end 61; Example

[0042] See also Figure 1-Figure 7 , and on the basis of the first embodiment, it is further obtained that: the top surfaces of the two support plates 42 are both horizontally fixed with connecting members 43, the connecting portion includes two mounting plates 51, the two mounting plates 51 are respectively fixedly connected to the corresponding connecting members 43, an adjusting groove 52 is horizontally penetrated on the top surface of the left mounting plate 51, and the two connecting columns 31 corresponding to the sides of the two mounting plates 51 are both provided with rotating holes 53, and the two connecting columns 31 extend into the two rotating holes 53;

[0043] The adjustment part includes a positioning column 54, which is horizontally slidably arranged inside the left hexagonal hole and horizontally slidably connected to the inner wall of the hexagonal hole. The outer end of the positioning column 54 sequentially penetrates the hexagonal hole and the left mounting plate 51 to extend into the adjustment slot 52. A connecting plate 541 is horizontally slidably arranged inside the adjustment slot 52. The side of the connecting plate 541 is fixedly connected to the side of the positioning column 54. The connecting plate 541 is penetrated by a polished rod on the left and right sides. The side of the polished rod is fixedly connected to the inner wall of the adjustment slot 52. A connecting spring 1 is sleeved on the surface of the polished rod. The left and right ends of the connecting spring 1 are respectively fixedly connected to the side of the connecting plate 541 and the inner wall of the adjustment slot 52.

[0044] The extrusion part includes a metal spring 64 and an extrusion liquid capsule 63. An extrusion groove 62 is vertically opened at the back of the welding table 1 corresponding to the front end position of the two connecting members 43. The metal spring 64 is vertically arranged inside the extrusion groove 62. The front end of the metal spring 64 is fixedly connected to the inner wall of the extrusion groove 62. The extrusion liquid capsule 63 is arranged inside the metal spring 64. The inner side of the metal spring 64 contacts the surface of the extrusion liquid capsule 63. The inner wall of the extrusion groove 62 is fixedly connected to the surface of the extrusion liquid capsule 63. The front end of the connecting member 43 extends to the corresponding extrusion groove 62 and contacts the rear end inclined surface of the metal spring 64. Hydraulic oil is arranged inside the extrusion liquid capsule 63. A second connecting spring is horizontally arranged inside the extrusion liquid capsule 63. The two ends of the second connecting spring are respectively fixedly connected to the front and rear end inner walls of the extrusion liquid capsule 63.

[0045] The limiting part includes two limiting ends 61, which are symmetrically arranged on both sides of the welding pad. The bottom surface of the limiting end 61 is slidably connected to the bottom surface of the inside of the welding platform 1. A hydraulic chamber 65 is horizontally opened below the corresponding extrusion groove 62 in the welding platform 1. A T-shaped rod 67 is horizontally and sealingly slidably arranged inside the hydraulic chamber 65. The inner end of the T-shaped rod 67 penetrates the inner wall of the hydraulic chamber 65 and extends to the inner side of the welding platform and is connected to the corresponding limiting end 61 by bolts. A connecting spring three is horizontally arranged inside the hydraulic chamber 65. The three ends of the connecting spring are respectively fixedly connected to the outer end surface of the T-shaped rod 67 and the inner wall of the hydraulic chamber 65. A connecting channel 66 is opened inside the welding platform 1 between the hydraulic chamber 65 and the extrusion groove 62. The bottom end of the connecting channel 66 is connected to the outside of the hydraulic chamber 65, and the upper end of the connecting channel 66 is fixedly connected to the inside of the extrusion liquid bag 63 in the extrusion groove 62.

[0046] Furthermore, in this embodiment, the connection column 31 is matched with the rotation hole 53 to facilitate the rotation and replacement of the welding head 3. At the same time, a positioning column 54 is arranged on the left mounting plate 51. The connection plate 541 can be manually pulled apart to make the positioning column 54 away from the connection column 31 on one side of the welding head 3, thereby unlocking the position of the welding head 3. When the welding head 3 is adjusted, the connection plate 541 is released to make the positioning column 54 lock the current position of the welding head 3.

[0047] Furthermore, in this embodiment, the welding head 3 can be quickly replaced only by moving the positioning column 54, so that the welding head replacement efficiency is improved, and the positioning column 54 is set to be a hexagonal column, so that the welding head 3 can move up and down stably before and after adjusting the position.

[0048] When in use, the metal spring 64 is pushed to squeeze the liquid capsule 63 through the connecting piece 43 while the welding head 3 moves downward, so that the two limit ends 61 are promoted to approach each other under the push of the T-bar 67 to limit the left and right widths of the wiring harness terminal. The connecting column 31 is matched with the rotating hole 53 to facilitate the rotation and replacement of the welding head 3. At the same time, a positioning column 54 is set on the left mounting plate 51. The connecting plate 541 can be manually pulled open to make the positioning column 54 away from the connecting column 31 on one side of the welding head 3 to complete the unlocking of the position of the welding head 3. When the welding head 3 is adjusted, the connecting plate 541 is released so that the positioning column 54 locks the current position of the welding head 3.

[0049] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fixture for welding wiring harness terminals, comprising a welding table (1), and a base (2) mounted horizontally on the bottom surface of the welding table (1), and a welding head (3) arranged directly above the welding platform (1) and a welding pad arranged on the inner bottom surface of the welding platform (1); characterized in that: Connecting columns (31) are fixedly provided on both sides of the welding head (3), and two hexagonal holes are provided on the sides away from each other of the two connecting columns (31); A lifting mechanism (4) is provided below the welding head (3), the welding head (3) is connected to the lifting mechanism (4) via an adjusting mechanism (5), a limiting mechanism (6) is provided inside the welding table (1), and the limiting mechanism (6) is in contact with the front end of the lifting mechanism (4); The adjusting mechanism (5) comprises a connecting portion and an adjusting portion; The adjusting part is arranged on the connecting part; The limiting mechanism (6) comprises an extrusion portion and a limiting portion, wherein the extrusion portion is connected to the limiting portion.

2. The wire harness terminal welding jig according to claim 1, characterized in that: The lifting mechanism (4) comprises two left and right support frames (41), the bottom surfaces of the two support frames (41) are fixedly connected to the top surface of the base (2), a support plate (42) is slidably arranged inside the support frame (41), a hydraulic rod (44) is arranged between the two support plates (42), the bottom surface of the hydraulic rod (44) is fixedly connected to the top surface of the base (2), and the top end of the output rod of the hydraulic rod (44) is fixedly connected to the side surfaces of the two support plates (42) via a fixedly connected force-bearing plate.

3. The wire harness terminal welding jig according to claim 2, characterized in that: The top surfaces of the two support plates (42) are both horizontally fixed with connecting members (43), the connecting portion comprises two mounting plates (51), the two mounting plates (51) are respectively fixedly connected to the corresponding connecting members (43), an adjustment slot (52) is horizontally penetrated through the top surface of the left mounting plate (51), and the two connecting columns (31) corresponding to the adjacent sides of the two mounting plates (51) are both provided with rotation holes (53), and the two connecting columns (31) extend into the two rotation holes (53).

4. The wire harness terminal welding jig according to claim 3, characterized in that: The adjustment portion comprises a positioning column (54), the positioning column (54) being horizontally slidably arranged inside the left hexagonal hole and being horizontally slidably connected to the inner wall of the hexagonal hole, the outer end of the positioning column (54) sequentially passing through the hexagonal hole and the left mounting plate (51) extending into the adjustment slot (52), a connecting plate (541) being horizontally slidably arranged inside the adjustment slot (52), the side surface of the connecting plate (541) being fixedly connected to the side surface of the positioning column (54), a polished rod passing through the left and right sides of the connecting plate (541), the side surface of the polished rod being fixedly connected to the inner wall of the adjustment slot (52), a connecting spring 1 being sleeved on the surface of the polished rod, the left and right ends of the connecting spring 1 being respectively fixedly connected to the side surface of the connecting plate (541) and the inner wall of the adjustment slot (52).

5. The wire harness terminal welding jig according to claim 1, characterized in that: The extrusion portion comprises a metal spring (64) and an extrusion liquid capsule (63). An extrusion groove (62) is vertically opened on the back side of the welding platform (1) at a position corresponding to the front ends of the two connecting members (43). The metal spring (64) is vertically arranged inside the extrusion groove (62). The front end of the metal spring (64) is fixedly connected to the inner wall of the extrusion groove (62). The extrusion liquid capsule (63) is arranged inside the metal spring (64). The inner side surface of the metal spring (64) contacts the surface of the extrusion liquid capsule (63). The inner wall of the extrusion groove (62) is fixedly connected to the surface of the extrusion liquid capsule (63). The front end of the connecting member (43) extends into the corresponding extrusion groove (62) and contacts the rear end inclined surface of the metal spring (64) by extrusion. Hydraulic oil is arranged inside the extrusion liquid capsule (63). A second connecting spring is horizontally arranged inside the extrusion liquid capsule (63). The two ends of the second connecting spring are respectively fixedly connected to the front and rear end inner walls of the extrusion liquid capsule (63).

6. The wire harness terminal welding jig according to claim 5, characterized in that: The limiting portion comprises two limiting ends (61), the two limiting ends (61) being symmetrically arranged on both sides of the welding pad, the bottom surfaces of the limiting ends (61) being slidably connected to the bottom surface of the inside of the welding platform (1), a hydraulic cavity (65) being horizontally opened below the corresponding extrusion groove (62) in the welding platform (1), a T-shaped rod (67) being horizontally and sealingly slidably arranged in the hydraulic cavity (65), the inner end of the T-shaped rod (67) penetrating the inner wall of the hydraulic cavity (65) extending to the inner side of the welding platform and being connected to the corresponding limiting end heads (61) by bolts, and a connecting spring (3) being horizontally arranged in the hydraulic cavity (65), the three ends of the connecting spring being respectively fixedly connected to the outer end surface of the T-shaped rod (67) and the inner wall of the hydraulic cavity (65).

7. The wire harness terminal welding jig according to claim 6, characterized in that: A connecting channel (66) is provided inside the welding platform (1) between the hydraulic chamber (65) and the extrusion groove (62); the bottom end of the connecting channel (66) is connected to the inside of the outer end of the hydraulic chamber (65); and the upper end of the connecting channel (66) is fixedly connected to the inside of the extrusion liquid bag (63) in the extrusion groove (62).

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