CN224102199U

CN224102199U - A convenient welding fixture

Info

Publication number: CN224102199U
Application number: CN202520950572.XU
Authority: CN
Inventors: 吴助兵
Original assignee: Ningbo Xinhe Machinery Technology Co ltd
Current assignee: Ningbo Xinhe Machinery Technology Co ltd
Priority date: 2025-05-14
Filing date: 2025-05-14
Publication date: 2026-04-10
Anticipated expiration: 2035-05-14

Abstract

The utility model belongs to the field of welding fixtures, and provides a portable welding fixture which comprises a tooling plate, a supporting mechanism and an anti-falling mechanism, wherein a positioning mechanism and a pressing mechanism are arranged on the tooling plate, the positioning mechanism is used for positioning a cushion framework to be welded, the movement of the cushion framework is limited through the pressing mechanism, the supporting mechanism and the anti-falling mechanism are movably arranged on the tooling plate, and the supporting mechanism comprises a supporting block. Compared with the prior art, the utility model has the advantages that through arranging the first positioning cavity and the second positioning cavity with the height difference and matching with the overturning locking of the overturning block, the accurate positioning of the two steel wires is realized, the steel wires are prevented from shifting or falling off in the welding process, the continuity and the safety of the welding process are ensured, and the driving mechanism is utilized to control the integral movement of the supporting mechanism and the anti-falling mechanism in a linkage way, so that the rapid attachment and the positioning between the steel wires and the cushion framework are realized, the manual operation steps are simplified, the production efficiency is improved, and the consistency and the stability of the welding quality are ensured.

Description

Portable welding jig

Technical Field

The utility model belongs to the field of welding clamps, and particularly relates to a portable welding clamp.

Background

In the field of automotive seat manufacture, furniture manufacture and other applications involving reinforcement of metal framework structures, the structural strength and stability of the seat cushion framework as an important component of support and load bearing are directly related to the overall performance and service life of the product. In order to improve the rigidity and deformation resistance of the cushion frame, a plurality of steel wires are welded on the surface of the cushion frame, and the steel wires not only play a role in strengthening, but also can bear the fixing function of subsequent cloth or other covering materials.

Currently, in the actual production process, for such steel wire welding operation, most enterprises still rely on manual operation to perform positioning and welding. Specifically, an operator needs to manually place the steel wire at a designated position of the seat cushion frame, keep the steel wire stable by using a clamp or a manual supporting mode, and then perform welding treatment through a spot welding device. The conventional process has a plurality of problems:

1. The welding precision is difficult to ensure, and due to the lack of a standardized positioning device, the welding positions of steel wires on different batches and even the same product often have deviation, so that the quality of the product is uneven.

2. The welding efficiency is low, a great deal of time is required for positioning and fixing each steel wire, the welding process is highly dependent on the experience of skilled workers, and large-scale and automatic production is difficult to realize.

3. The flexibility is poor, and the fixed welding fixture is often adopted for positioning the steel wire, so that the flexible adjustment between the relative positions of the steel wire and the cushion framework is not facilitated, and the uniformity of the welding quality of the steel wire and the cushion framework cannot be guaranteed.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model aims to solve the technical problems of providing the portable welding fixture which has a simple integral structure, is convenient and flexible to adjust and ensures the welding quality and the welding efficiency.

The technical scheme adopted for solving the technical problems is that the utility model provides a portable welding fixture for synchronously welding a first steel wire and a second steel wire to a cushion framework, which comprises a tooling plate, a positioning mechanism and a pressing mechanism, wherein the tooling plate is provided with the positioning mechanism and the pressing mechanism, the positioning mechanism is used for positioning the cushion framework to be welded, and the pressing mechanism is used for limiting the movement of the cushion framework;

The support mechanism and the anti-drop mechanism are movably arranged on the tooling plate, the support mechanism comprises a support block, a first positioning cavity and a second positioning cavity which are arranged in a height difference manner are formed in the support block, openings of the first positioning cavity and the second positioning cavity face to the cushion framework, and the first steel wire and the second steel wire are respectively arranged in the first positioning cavity and the second positioning cavity; the anti-disengaging mechanism comprises a turnover block, and the turnover block can limit the first steel wire and the second steel wire to be separated from the first positioning cavity or the second positioning cavity after being turned over;

The driving mechanism is movably arranged on the tooling plate and is used for driving the supporting mechanism and the anti-disengaging mechanism to be close to or far away from a cushion framework to be welded, so that the fixed first steel wire and the fixed second steel wire are synchronously attached to the cushion framework.

In the portable welding fixture, the supporting mechanism further comprises a fixing seat, a first mounting hole is formed in the fixing seat, a second mounting hole is formed in the supporting block, and a fastener can pass through the first mounting hole and the second mounting hole when aligned so as to connect the supporting block to the fixing seat.

In the above-mentioned portable welding jig, the actuating mechanism includes:

The mounting seat is arranged on the tooling plate;

The driving piece is arranged in the mounting seat, the output end of the driving piece is connected with the material moving plate, and the fixing seat is detachably connected to the material moving plate;

The guide rail is arranged on the tooling plate, the top wall of the guide block is connected with the material moving plate, and the bottom wall of the guide block is movably clamped with the guide rail.

In the above-mentioned portable welding jig, the anti-disengaging mechanism includes:

the mounting plate is connected with the fixing seat, and an extension part is formed on the mounting plate;

The connecting plate is arranged on the extension part, and the end part of the connecting plate far away from the extension part is movably hinged to the overturning block;

The turnover cylinder is arranged on the mounting plate, and the output end of the turnover cylinder is movably hinged to the bottom end of the turnover block, so that the top end of the turnover block is close to or far away from the first steel wire and the second steel wire.

In the portable welding fixture, the overturning block is further internally provided with the avoiding part.

In the portable welding fixture, the fixture plate is further provided with a fixed block, the fixed block is connected with a limiting block, and the material moving plate is movably propped against the limiting block.

In the portable welding fixture, a plurality of supporting seats are further arranged on the material moving plate, each supporting seat is connected with a positioning support, and clamping grooves for the first steel wire and the second steel wire to respectively extend in are formed in the positioning support.

In the portable welding fixture, the positioning support is detachably connected with the baffle, and the baffle is used for limiting the first steel wire and the second steel wire in the clamping groove.

In the above-mentioned portable welding jig, the positioning mechanism includes:

The support frame is arranged on the tooling plate, an anti-falling block is arranged on the support frame, an anti-falling groove is formed by the anti-falling block and the support frame together, and the cushion framework is arranged in the anti-falling groove;

The fixing frame is arranged on the tooling plate, a positioning cylinder is connected to the fixing frame, the output end of the positioning cylinder is connected with a positioning pin, and the positioning pin is movably inserted into the cushion framework.

In the portable welding jig, the hold-down mechanism comprises a hold-down cylinder and a hold-down block, the output end of the hold-down cylinder is connected with a rotating block, the rotating block is connected with a mounting bracket, and the hold-down block is detachably connected with the bottom wall of the mounting bracket.

Compared with the prior art, the utility model has the following beneficial effects:

(1) According to the portable welding fixture, the first positioning cavity and the second positioning cavity with the height difference are arranged, meanwhile, the overturning locking of the overturning block is matched, accurate positioning of two steel wires is achieved, the steel wires are prevented from shifting or falling off in the welding process, continuity and safety of the welding process are guaranteed, the driving mechanism is used for controlling the whole movement of the supporting mechanism and the anti-falling mechanism in a linkage mode, rapid attachment and positioning between the steel wires and the cushion framework are achieved, manual operation steps are simplified, production efficiency is improved, and consistency and stability of welding quality are guaranteed.

(2) The design of avoiding the portion effectively avoids the hard collision between the overturning block and the steel wire in the overturning process, reduces the risk of equipment failure or steel wire displacement caused by false touch or jamming, and improves the safety and stability of overall operation.

(3) Through setting up the stopper and moving the butt joint cooperation structure of flitch, improved the accuracy of butt joint between steel wire and the cushion skeleton effectively, ensure welding quality's uniformity.

Drawings

FIG. 1 is a schematic view of the overall structure of the present application;

FIG. 2 is a schematic view of the mounting structure of the support mechanism, the anti-slip mechanism, and the drive mechanism;

FIG. 3 is a schematic view of the structure of the first and second wires when they are fixed via the supporting mechanism and the anti-disengaging mechanism;

FIG. 4 is a schematic view of the mounting structure of the positioning mechanism and the pressing mechanism on the tooling plate.

In the figure, 10 parts of cushion frameworks, 11 parts of first steel wires, 110 parts of bending parts, 12 parts of second steel wires, 2 parts of tooling plates, 20 parts of fixed blocks, 21 parts of limiting blocks, 220 parts of adjusting gaskets;

3. 30 parts of a positioning mechanism, a supporting frame, 31 parts of an anti-falling block, 320 parts of an anti-falling groove, 33 parts of a fixing frame, 34 parts of a positioning cylinder, 340 parts of a positioning pin;

4. a compressing mechanism; 40, a compression cylinder, 400, a rotating block, 401, a mounting bracket, 41 and a compression block;

5. A support mechanism; 50 parts of supporting blocks, 500 parts of first positioning cavities, 501 parts of second positioning cavities, 51 parts of fixing seats, 510 parts of first mounting holes;

6. the anti-falling mechanism comprises 60 parts of a turnover block, 600 parts of a dodging part, 61 parts of a mounting plate, 610 parts of an extending part, 62 parts of a connecting plate, 63 parts of a turnover cylinder;

7. a driving mechanism; 70 parts of installation seat, 71 parts of driving piece, 72 parts of material moving plate, 73 parts of guide rail, 74 parts of guide block, 75 parts of supporting seat, 750 parts of positioning support, 750a parts of clamping groove, 76 parts of baffle plate.

Detailed Description

The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear are used in the embodiments of the present invention) are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicators are changed accordingly.

As shown in fig. 1 to 4, the portable welding fixture is used for synchronously welding a first steel wire 11 and a second steel wire 12 to a cushion framework 10, and comprises a tool plate 2, a supporting mechanism 5 and a disengaging prevention mechanism 6, wherein the tool plate 2 is provided with a positioning mechanism 3 and a pressing mechanism 4, the positioning mechanism 3 is used for positioning the cushion framework 10 to be welded and limiting the movement of the cushion framework 10 through the pressing mechanism 4, the supporting mechanism 5 and the disengaging prevention mechanism 6 are movably arranged on the tool plate 2, the supporting mechanism 5 comprises a supporting block 50, a first positioning cavity 500 and a second positioning cavity 501 which are arranged in a height difference manner are formed in the supporting block 50, openings of the first positioning cavity 500 and the second positioning cavity 501 face the cushion framework 10, the first steel wire 11 and the second steel wire 12 are respectively arranged in the first positioning cavity 500 and the second positioning cavity 501, the disengaging prevention mechanism 6 comprises a turnover block 60, the turnover block 60 can limit the first steel wire 11 and the second steel wire 12 to be disengaged from the first positioning cavity 500 or the second positioning cavity 501 after being turned, and a driving mechanism 7 is movably arranged on the tool plate 2, and the driving mechanism 7 is used for driving the supporting mechanism 5 and the second steel wire 12 to be separated from the first positioning cavity 500 or the second positioning cavity 501 to be closely attached to the cushion framework 10 and the second steel wire 12 after being welded to the first steel wire 11 and the second positioning cavity 10.

In this embodiment, two wires (i.e., the first wire 11 and the second wire 12) need to be welded on the cushion frame 10 at the same time, specifically, as shown in fig. 1 to 4, a worker or a manipulator can place the cushion frame 10 to be welded in the positioning mechanism 3 on the tooling plate 2, and cooperate with the pressing mechanism 4 to apply multidirectional pressure to the cushion frame 10, so as to ensure that the cushion frame 10 will not deviate or vibrate in the subsequent welding process, before that, the driving mechanism 7 has moved the supporting mechanism 5 and the anti-disengaging mechanism 6 to a position away from the positioned cushion frame 10, so that the worker or the manipulator can place the first wire 11 and the second wire 12 to be welded in the first positioning cavity 500 and the second positioning cavity 501 respectively, and because the two positioning cavities have a height difference design, the layout requirements of the wires required by different welding positions can be adapted, and meanwhile, the risk of position interference and collision damage between the wires and the cushion frame 10 can be avoided. Along with the anti-falling mechanism 6 drives the overturning block 60 to overturn, so that the anti-falling mechanism rotates and abuts against the steel wire to be welded, the limiting effect on the steel wire is further achieved, the steel wire is prevented from being separated from the positioning cavity due to vibration or external force in the subsequent moving and welding processes, and the stability and safety in the welding process are remarkably improved. After the steel wires and the cushion frame 10 are effectively fixed, the driving mechanism 7 can drive the supporting mechanism 5 and the anti-falling mechanism 6 to be integrally close to the left in fig. 1, so that the first steel wire 11 and the second steel wire 12 slowly close to and abut against the welding position of the cushion frame 10 along with the supporting block 50, and the two steel wires can be quickly welded onto the cushion frame 10 by an external welding mechanical head. Therefore, the height difference design of the supporting mechanism 5 allows two steel wires with different heights or positions to be processed simultaneously, the automatic positioning adjustment of the steel wires is realized by matching with the upper driving mechanism 7, the flexibility is high, manual intervention is not needed, the bonding degree between the steel wires and the framework in the welding process is improved, and the reject ratio of cold welding, missing welding and the like is reduced.

The supporting mechanism 5 further comprises a fixing seat 51, a first mounting hole 510 is formed in the fixing seat 51, a second mounting hole is formed in the supporting block 50, and a fastener can pass through the first mounting hole 510 and the second mounting hole when aligned so as to connect the supporting block 50 to the fixing seat 51.

As shown in fig. 2 and 3, in the present embodiment, when the first mounting hole 510 and the second mounting hole are aligned, the first mounting hole 510 is preferably a through hole, and the second mounting hole is preferably a threaded hole, so that the fastener (may be a screw, etc.) passes through the first mounting hole 510 and is connected to the second mounting hole. The mounting structure is simple, the operation is convenient and quick, and the support block 50 can be timely detached and replaced when being worn or damaged. In addition, the fixing seat 51 in this embodiment can also be quickly assembled and disassembled by using bolts, screws and other components, so that the accuracy of the position reference of the supporting block 50 is ensured.

The anti-falling mechanism 6 comprises a mounting plate 61 connected to the fixed seat 51, a connecting plate 62 arranged on the extending part 610, a turnover cylinder 63 arranged on the mounting plate 61, wherein the end part of the connecting plate 62 far away from the extending part 610 is movably hinged to the turnover block 60, and the output end of the turnover cylinder 63 is movably hinged to the bottom end of the turnover block 60 so that the top end of the turnover block 60 is close to or far away from the first steel wire 11 and the second steel wire 12.

Further, as shown in fig. 2 and 3, the mounting plate 61 in this embodiment may be connected to the fixing base 51 by using bolts, screws, etc. as the first steel wire 11 and the second steel wire 12 are respectively placed into the first positioning cavity 500 and the second positioning cavity 501 of the supporting block 50, the output end of the turning cylinder 63 may push the bottom end of the turning block 60 to move, in this process, the top end of the turning block 60 may rotate around the hinge (i.e. the rotation center of the turning block 60) of the turning block and the connecting plate 62, so that the top end of the turning block 60 gradually approaches and abuts against the steel wire from the position originally far away from the supporting block 50, it is worth noting that in this embodiment, a bending portion 110 is formed at the end of the first steel wire 11 and the end of the second steel wire 12 are staggered with each other, and with the abutting of the turning block 60 against the second steel wire 12, so that the end of the second steel wire 12 is abutted against the bending portion 110 (refer to fig. 3), and finally, that the two steel wires are synchronously abutted against and fixed, that is, in this embodiment, the two steel wires may be automatically completed under the condition that one turning block 60 is used, and the two steel wires are automatically fixed, and the space is also reduced, and the occupied space is reasonably occupied, and the operation is reduced.

Preferably, as shown in fig. 3, the turning block 60 in this embodiment further has a relief portion 600 formed therein. The avoiding portion 600 effectively avoids the direct contact between the turning block 60 and the first steel wire 11, but ensures that the two steel wires are firmly fixed in the supporting block 50 by the above-mentioned mode (abutting against the second steel wire 12 and indirectly fixing the first steel wire 11 through the bending portion 110), so as to provide a guarantee for the subsequent welding quality. The turned-over turning block 60 is also helpful to realize barrier-free operation in the welding process, and avoid influencing the welding efficiency and welding quality due to structural interference.

The driving mechanism 7 comprises a mounting seat 70 arranged on the tooling plate 2, a driving piece 71 and a material moving plate 72, wherein the driving piece 71 is arranged in the mounting seat 70, the output end of the driving piece 71 is connected with the material moving plate 72, the fixed seat 51 is detachably connected to the material moving plate 72, a guide rail 73 and a guide block 74, the guide rail 73 is arranged on the tooling plate 2, the top wall of the guide block 74 is connected with the material moving plate 72, and the bottom wall is movably clamped with the guide rail 73.

As shown in fig. 1 and fig. 2, when the first steel wire 11 and the second steel wire 12 are respectively fixed in the first positioning cavity 500 and the second positioning cavity 501 through the cooperation of the supporting block 50 and the overturning block 60, the whole welding fixture control system can give the signal for opening the driving piece 71 at this time, and in the process that the output end of the driving piece 71 drives the material moving plate 72 to approach the cushion frame 10, the embodiment realizes high-precision linear motion under the guiding action of the guide rail 73 and the guide wire block, so that the accuracy of the attaching position between the steel wire and the cushion frame 10 is greatly ensured, and further, the guarantee is provided for the subsequent welding quality. It should be noted that, the driving member 71 in the present embodiment may be replaced by other driving devices such as hydraulic driving and pneumatic driving.

The tooling plate 2 is also provided with a fixed block 20, the fixed block 20 is connected with a limiting block 21, and the material moving plate 72 is movably abutted against the limiting block 21.

Further, as shown in fig. 2, in the process of driving the material moving plate 72 by the driving member 71 to move along the specified direction, the present embodiment indirectly realizes the limitation of the positions of the first steel wire 11 and the second steel wire 12 relative to the cushion frame 10 through the close contact between the limiting block 21 and the material moving plate 72, that is, the limiting block 21 limits the distance between the first steel wire 11, the second steel wire 12 and the cushion frame 10, so as to ensure the accuracy of the close contact between the two for welding. Preferably, the stopper 21 in this embodiment can also be quickly assembled and disassembled with the fixing block 20 by using screws, bolts, and other parts, so that great convenience is provided for subsequent wear or damage replacement. In addition, in this embodiment, adjusting gaskets 220 with different thicknesses and different numbers can be additionally arranged between the limiting block 21 and the fixing block 20, and by using this method, the first steel wire 11 and the second steel wire 12 can be applied to the welding requirements of the cushion frame 10 with different specifications, so that the flexibility and the application range of the welding tool are effectively improved.

The material moving plate 72 is also provided with a plurality of supporting seats 75, each supporting seat 75 is connected with a positioning support 750, and the positioning support 750 is internally provided with a clamping groove 750a into which the first steel wire 11 and the second steel wire 12 respectively extend.

Further, as shown in fig. 2, in the process of placing the first steel wire 11 and the second steel wire 12, a worker or a manipulator may place the two steel wires in the corresponding height of the clamping groove 750a in advance, and it is worth noting that the positioning bracket 750 is located in the middle position of the material moving plate 72, and the preliminary positioning of the steel wires is achieved through the positioning bracket 750, so that a guarantee is provided for the accuracy when the first steel wire 11 and the second steel wire 12 are placed in the first positioning cavity 500 and the second positioning cavity 501 respectively.

Still preferably, as shown in fig. 2, the positioning support 750 is detachably connected with the baffle 76, after the first steel wire 11 and the second steel wire 12 are placed in the clamping groove 750a, a worker can fix the baffle 76 on the positioning support 750 by means of bolts, screws and the like, so that the baffle 76 is tightly attached to the opening end of the clamping groove 750a, the first steel wire 11 and the second steel wire 12 are effectively prevented from being separated from the clamping groove 750a, and stability in the primary positioning of the first steel wire 11 and the second steel wire 12 is further provided.

The positioning mechanism 3 comprises a support frame 30 arranged on the tooling plate 2, an anti-falling block 31 arranged on the support frame 30, an anti-falling groove 320 formed by the anti-falling block 31 and the support frame 30 together, a seat cushion framework 10 arranged in the anti-falling groove 320, a fixing frame 33 arranged on the tooling plate 2, a positioning cylinder 34 connected to the fixing frame 33, a positioning pin 340 connected to the output end of the positioning cylinder 34, and the positioning pin 340 movably inserted into the seat cushion framework 10.

As shown in fig. 4, in this embodiment, the anti-falling blocks 31 on two sides of the supporting frame 30 form an anti-falling groove 320, and the opening of the anti-falling groove 320 is V-shaped, so as to play a guiding and limiting role for placing the cushion frame 10, and ensure the stability of the cushion frame 10 in the anti-falling groove 320. After the cushion frame 10 is placed in the anti-drop groove 320, the positioning cylinder 34 can drive the positioning pin 340 to be inserted into an assembly hole (not shown in the figure) of the cushion frame 10, so that the positioning accuracy of the cushion frame 10 is further improved, the manual operation error is reduced, and the welding consistency and the product qualification rate are improved.

The compressing mechanism 4 comprises a compressing cylinder 40 and a compressing block 41, the output end of the compressing cylinder 40 is connected with a rotating block 400, the rotating block 400 is connected with a mounting bracket 401, and the compressing block 41 is detachably connected to the bottom wall of the mounting bracket 401.

As shown in fig. 4, in this embodiment, the pressing manner of the cushion frame 10 is the same as the pressing manner commonly used in the traditional mechanical industry, specifically, after the positioning pin 340 and the anti-drop groove 320 accurately position the cushion frame 10, the pressing cylinder 40 can drive the pressing block 41 to gradually approach from the original far position and press the cushion frame 10, so as to limit the movement of the cushion frame 10 in the vertical direction in fig. 1, and cooperate with the positioning pin 340 and the anti-drop groove 320 to limit the cushion frame 10 in the horizontal direction in fig. 1, so that the stability in the welding process is effectively improved, and the final welding quality of the product is ensured to meet the required use requirement.

It should be noted that the description of the present invention as it relates to "first", "second", "a", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. The terms "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intermediate medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise specifically defined. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present invention may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present invention.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. A portable welding jig for with first steel wire and second steel wire synchronous welding to the cushion skeleton on, its characterized in that includes:

The tooling plate is provided with a positioning mechanism and a pressing mechanism, wherein the positioning mechanism is used for positioning the cushion framework to be welded and limiting the movement of the cushion framework through the pressing mechanism;

2. The portable welding jig of claim 1, wherein the support mechanism further comprises a fixing base, a first mounting hole is formed in the fixing base, a second mounting hole is formed in the support block, and a fastener can pass through the first mounting hole and the second mounting hole when aligned so as to connect the support block to the fixing base.

3. The portable welding fixture of claim 2, wherein the drive mechanism comprises:

The mounting seat is arranged on the tooling plate;

4. The portable welding fixture of claim 2, wherein the anti-disengaging mechanism comprises:

5. The portable welding jig of claim 4, wherein the turnover block further comprises a relief formed therein.

6. A portable welding jig according to claim 3, wherein the tooling plate is further provided with a fixed block, the fixed block is connected with a stopper, and the material moving plate is movably abutted against the stopper.

7. The portable welding fixture of claim 3, wherein the material moving plate is further provided with a plurality of supporting seats, each supporting seat is connected with a positioning support, and the positioning support is internally provided with a clamping groove into which the first steel wire and the second steel wire respectively extend.

8. The portable welding fixture of claim 7, wherein the positioning bracket is detachably connected with a baffle, and the baffle is used for limiting the first steel wire and the second steel wire in the clamping groove.

9. The portable welding fixture of claim 1, wherein the positioning mechanism comprises:

10. The portable welding jig of claim 9, wherein the hold-down mechanism comprises a hold-down cylinder and a hold-down block, wherein the output end of the hold-down cylinder is connected with a rotating block, the rotating block is connected with a mounting bracket, and the hold-down block is detachably connected to the bottom wall of the mounting bracket.