Portable welding fixture

Abstract

The utility model belongs to the field of welding fixtures, and provides a portable welding fixture, which comprises a tooling plate, a positioning mechanism and a pressing mechanism, the tooling plate is provided with the positioning mechanism and the pressing mechanism, and the positioning mechanism is used for positioning a cushion framework to be welded and limiting the movement of the cushion framework through the pressing mechanism; the supporting mechanism and the anti-falling mechanism are movably arranged on the tool plate, and the supporting mechanism comprises a supporting block. Compared with the prior art, the steel wire positioning device has the advantages that the first positioning cavity and the second positioning cavity with the height difference are arranged and are matched with overturning locking of the overturning block, so that accurate positioning of two steel wires is achieved, the steel wires are prevented from deviating or falling off in the welding process, and continuity and safety of the welding process are guaranteed; and then the driving mechanism is used for controlling the overall movement of the supporting mechanism and the anti-falling mechanism in a linkage manner, so that the rapid fitting and positioning between the steel wire and the cushion framework are realized, the manual operation steps are simplified, the production efficiency is improved, and meanwhile, the consistency and stability of the welding quality are also ensured.

Description

Technical Field

[0001] This utility model belongs to the field of welding fixtures, and specifically relates to a convenient welding fixture. Background Technology

[0002] In automotive seat manufacturing, furniture manufacturing, and other applications involving metal frame reinforcement, the seat cushion frame serves as a crucial support and load-bearing component. Its structural strength and stability directly affect the overall performance and lifespan of the product. To enhance the rigidity and deformation resistance of the seat cushion frame, several steel wires are typically welded to its surface. These wires not only provide reinforcement but may also serve to secure subsequent fabric or other covering materials.

[0003] Currently, in actual production processes, most companies still rely on manual operation for positioning and welding of this type of steel wire. Specifically, operators must first manually place the steel wire in the designated position on the seat cushion frame, using clamps or manual support to maintain its stability, and then perform welding using spot welding equipment. This traditional process has many problems:

[0004] 1. Difficulty in guaranteeing welding accuracy: Due to the lack of standardized positioning devices, the welding position of steel wires in different batches or even the same product often deviates, resulting in inconsistent product quality.

[0005] 2. Low welding efficiency: The positioning and fixing of each steel wire takes a lot of time, and the welding process is highly dependent on the experience of skilled workers, making it difficult to achieve large-scale and automated production.

[0006] 3. Poor flexibility: Fixed welding clamps are often used for positioning the steel wire, which is not conducive to flexible adjustment between the relative positions of the steel wire and the seat frame, and thus cannot guarantee the uniformity of the welding quality of the two. Utility Model Content

[0007] In view of the above-mentioned shortcomings of the existing technology, the technical problem to be solved by this utility model is to propose a convenient welding fixture with a simple overall structure, convenient and flexible adjustment, and guaranteed welding quality and welding efficiency.

[0008] The technical solution adopted by this utility model to solve its technical problem is to propose a convenient welding fixture for simultaneously welding the first steel wire and the second steel wire to the seat frame. It includes: a tooling plate on which a positioning mechanism and a clamping mechanism are configured. The positioning mechanism is used to position the seat frame to be welded, and the clamping mechanism restricts the movement of the seat frame.

[0009] The support mechanism and the anti-dropping mechanism are movably arranged on the tooling plate, the support mechanism comprises a support block, the support block is provided with a first positioning cavity and a second positioning cavity with a height difference, the first positioning cavity and the second positioning cavity are both open towards the cushion framework, and the first steel wire and the second steel wire are arranged in the first positioning cavity and the second positioning cavity respectively; the anti-dropping mechanism comprises a turnover block, and the turnover block can limit the first steel wire and the second steel wire from being separated out of the first positioning cavity or the second positioning cavity after being turned over.

[0010] The driving mechanism is movably arranged on the tooling plate, and is used for driving the support mechanism and the anti-dropping mechanism to approach or move away from the cushion framework to be welded, so that the fixed first steel wire and the second steel wire are synchronously attached to the cushion framework.

[0011] In the portable welding clamp, the support mechanism further comprises a fixing seat, the fixing seat is provided with a first mounting hole, the support block is provided with a second mounting hole, and the first mounting hole and the second mounting hole are aligned to allow a fastener to pass through, so as to connect the support block to the fixing seat.

[0012] In the portable welding clamp, the driving mechanism comprises:

[0013] A mounting seat is arranged on the tooling plate;

[0014] A driving member and a material moving plate, the driving member is arranged in the mounting seat, the output end of the driving member is connected to the material moving plate, and the fixing seat is detachably connected to the material moving plate;

[0015] A guide rail and a guide block, the guide rail is arranged on the tooling plate, and the top wall of the guide block is connected to the material moving plate, and the bottom wall is movably clamped to the guide rail.

[0016] In the portable welding clamp, the anti-dropping mechanism comprises:

[0017] A mounting plate is connected to the fixing seat, and the mounting plate is formed with an extension;

[0018] A connecting plate is arranged on the extension, and the end portion of the connecting plate away from the extension is movably hinged to the turnover block;

[0019] A 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 approaches or moves away from the first steel wire and the second steel wire.

[0020] In the portable welding clamp, the turnover block is further formed with a avoiding portion.

[0021] In the portable welding fixture, the tool plate is further provided with a fixing block, a limiting block is connected to the fixing block, and the material moving plate movably abuts against the limiting block.

[0022] In the portable welding fixture, a plurality of support seats are further mounted on the material moving plate, a positioning support is connected to each support seat, and a clamping groove is formed in the positioning support for the first steel wire and the second steel wire to extend into, respectively.

[0023] In the portable welding fixture, a baffle is detachably connected to the positioning support, and the baffle is used to limit the first steel wire and the second steel wire in the clamping groove.

[0024] In the portable welding fixture, the positioning mechanism comprises:

[0025] A support frame is arranged on the tool plate, a anti-dropping block is arranged on the support frame, and the anti-dropping block and the support frame jointly form an anti-dropping groove, and the cushion framework is arranged in the anti-dropping groove.

[0026] A fixing frame is arranged on the tool plate, a positioning cylinder is connected to the fixing frame, an output end of the positioning cylinder is connected with a positioning pin, and the positioning pin movably penetrates the cushion framework.

[0027] In the portable welding fixture, the pressing mechanism comprises a pressing cylinder and a pressing block, an output end of the pressing cylinder is connected with a rotating block, the rotating block is connected with a mounting bracket, and the pressing block is detachably connected to a bottom wall of the mounting bracket.

[0028] Compared with the prior art, the portable welding fixture has the following beneficial effects:

[0029] (1) The portable welding fixture has the first positioning cavity and the second positioning cavity with height differences, and the turning and locking of the turning block are cooperated, so that the two steel wires are accurately positioned, the steel wires are prevented from deviating or falling off during the welding process, and the continuity and safety of the welding process are ensured; the overall movement of the support mechanism and the anti-dropping mechanism is controlled by the driving mechanism, the rapid adhesion and 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 stability of the welding quality are ensured.

[0030] (2) The design of the avoiding part effectively avoids the hard collision between the turning block and the steel wire during the turning process, reduces the risk of equipment failure or steel wire displacement caused by accidental touch or jamming, and improves the safety and stability of the overall operation.

[0031] (3) By setting the limiting block and the abutting cooperation structure of the material moving plate, the accuracy of the butt joint between the steel wire and the cushion framework is effectively improved, and the consistency of the welding quality is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 is the overall structure schematic diagram of the present application;

[0033] Figure 2 is the installation structure schematic diagram of the supporting mechanism, the anti-dropping mechanism and the driving mechanism;

[0034] Figure 3 is the structure schematic diagram when the first steel wire and the second steel wire are fixed through the supporting mechanism and the anti-dropping mechanism;

[0035] Figure 4 is the installation structure schematic diagram of the positioning mechanism and the pressing mechanism on the tool plate.

[0036] In the figure, 10, cushion framework; 11, first steel wire; 110, bending part; 12, second steel wire; 2, tool plate; 20, fixed block; 21, limiting block; 220, adjusting gasket;

[0037] 3, positioning mechanism; 30, supporting frame; 31, anti-dropping block; 320, anti-dropping groove; 33, fixed frame; 34, positioning cylinder; 340, positioning pin;

[0038] 4, pressing mechanism; 40, pressing cylinder; 400, rotating block; 401, installation support; 41, pressing block;

[0039] 5, supporting mechanism; 50, supporting block; 500, first positioning cavity; 501, second positioning cavity; 51, fixed seat; 510, first installation hole;

[0040] 6, anti-dropping mechanism; 60, overturning block; 600, avoiding part; 61, installation plate; 610, extension part; 62, connecting plate; 63, overturning cylinder;

[0041] 7, driving mechanism; 70, installation seat; 71, driving piece; 72, material moving plate; 73, guide rail; 74, guide block; 75, supporting seat; 750, positioning support; 750a, clamping groove; 76, baffle. DETAILED DESCRIPTION

[0042] The following is a specific embodiment of the present application and further describes the technical solution of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0043] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0044] like Figures 1 to 4 As shown, this utility model discloses a convenient welding fixture for simultaneously welding a first steel wire 11 and a second steel wire 12 to a seat cushion frame 10. It includes: a tooling plate 2, on which a positioning mechanism 3 and a clamping mechanism 4 are configured. The positioning mechanism 3 positions the seat cushion frame 10 to be welded, and the clamping mechanism 4 restricts the movement of the seat cushion frame 10; a support mechanism 5 and an anti-detachment mechanism 6, movably mounted on the tooling plate 2. The support mechanism 5 includes a support block 50, on which a first positioning cavity 500 and a second positioning cavity 501 with a height difference are formed. The openings of 501 all face the seat frame 10. The first steel wire 11 and the second steel wire 12 are respectively placed in the first positioning cavity 500 and the second positioning cavity 501. The anti-detachment mechanism 6 includes a flipping block 60, which can prevent the first steel wire 11 and the second steel wire 12 from detaching from the first positioning cavity 500 or the second positioning cavity 501 after flipping. The drive mechanism 7 is movably set on the tooling plate 2. The drive mechanism 7 is used to drive the support mechanism 5 and the anti-detachment mechanism 6 to approach or move away from the seat frame 10 to be welded, so that the fixed first steel wire 11 and the second steel wire 12 are synchronously attached to the seat frame 10.

[0045] In this embodiment, two steel wires (i.e., the first steel wire 11 and the second steel wire 12) need to be welded to the seat cushion frame 10 simultaneously. Specifically, as follows: Figures 1 to 4As shown, the worker or the mechanical hand can place the cushion framework 10 to be welded in the positioning mechanism 3 on the tool plate 2, and cooperate with the pressing mechanism 4 to apply multi-directional pressure to the cushion framework 10, to ensure that it does not shift or vibrate during the subsequent welding process; before that, the driving mechanism 7 has moved the supporting mechanism 5 and the anti-dropping mechanism 6 to a position away from the position where the cushion framework 10 is positioned after being positioned, so as to facilitate the worker or the mechanical hand to place the first steel wire 11 and the second steel wire 12 to be welded in the first positioning cavity 500 and the second positioning cavity 501 respectively, since the two positioning cavities have a height difference design, they can adapt to the steel wire layout requirements of different welding position requirements, while also avoiding the risk of position interference and collision damage between the steel wire and the cushion framework 10; preferably, the supporting block 50 in the embodiment can be made of wear-resistant and high-temperature-resistant materials to avoid affecting the positioning accuracy of the steel wire due to wear caused by repeated use. With the anti-dropping mechanism 6 driving the turnover block 60 to perform a turnover action, it rotates and abuts against the steel wire to be welded, thereby playing a limiting role on the steel wire, preventing the steel wire from being separated from the positioning cavity due to vibration or external force during subsequent movement and welding, and significantly improving the stability and safety during welding. After the steel wire and the cushion framework 10 are effectively fixed, the driving mechanism 7 can drive the supporting mechanism 5 and the anti-dropping mechanism 6 as a whole to move leftward, so that the first steel wire 11 and the second steel wire 12 slowly approach and abut against the welding position of the cushion framework 10 along with the supporting block 50, so as to facilitate the external welding mechanical head to quickly weld the two steel wires to the cushion framework 10. As can be seen, the height difference design of the supporting mechanism 5 allows simultaneous processing of two steel wires of different heights or positions, and the automatic positioning adjustment of the steel wire is realized by cooperating with the driving mechanism 7, which is flexible and does not require manual intervention, improves the adhesion between the steel wire and the framework during welding, and reduces the defective rate of virtual welding, missed welding and the like. Figure 1

[0046] The supporting mechanism 5 further comprises a fixed seat 51, and the fixed seat 51 is provided with a first mounting hole 510. The supporting block 50 is provided with a second mounting hole, and the first mounting hole 510 and the second mounting hole are aligned to allow a fastener to pass through, so as to connect the supporting block 50 to the fixed seat 51.

[0047] As Figure 2 and Figure 3 ​As shown, the mounting of the support block 50 in the embodiment is mainly through the alignment and placement of the first mounting hole 510 and the second mounting hole, and then the fastener (which can be a screw, a bolt, etc.) is passed through the first mounting hole 510 and connected to the second mounting hole. Preferably, the first mounting hole 510 in the embodiment is a through hole, and the second mounting hole is a threaded hole. This mounting structure is simple, easy and fast to operate, and helps to timely disassemble and replace the support block 50 when it is worn or damaged. In addition, the fixing seat 51 in the embodiment can also be quickly mounted and dismounted by using bolts, screws and other components, thereby ensuring the accuracy of the position reference of the support block 50.

[0048] The anti-disengagement mechanism 6 comprises: a mounting plate 61 connected to the fixing seat 51, the mounting plate 61 being provided with an extension 610; a connecting plate 62 arranged on the extension 610, the end of the connecting plate 62 away from the extension 610 being movably hinged to the turnover block 60; and a turnover cylinder 63 arranged on the mounting plate 61, the output end of the turnover cylinder 63 being 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 away from the first steel wire 11 and the second steel wire 12.

[0049] Further, as shown in Figure 2 and Figure 3 , the mounting plate 61 in the embodiment is connected to the fixing seat 51 by bolts, screws and other components. As the first steel wire 11 and the second steel wire 12 are respectively placed in the first positioning cavity 500 and the second positioning cavity 501 of the support block 50, the output end of the turnover cylinder 63 can push the bottom end of the turnover block 60 to move. In this process, the top end of the turnover block 60 can rotate around the hinge between the turnover block 60 and the connecting plate 62 (i.e., the rotation center of the turnover block 60), so that the top end of the turnover block 60 gradually approaches and abuts against the steel wire from the original posture of being away from the support block 50. It is worth noting that in the embodiment, a bending portion 110 is formed at the end of the first steel wire 11, which is interlaced with the end of the second steel wire 12. When the turnover block 60 abuts against the second steel wire 12, the end of the second steel wire 12 can abut against the bending portion 110 (see Figure 3 ). Finally, the two steel wires are synchronously fixed. That is, the fixation of the two steel wires can be completed by using one turnover block 60 in the embodiment, which saves the use of parts, reduces the operation process, improves the production efficiency, and reasonably arranges the structure to reduce the occupied space, which is suitable for automatic continuous operation.

[0050] Preferably, as shown in Figure 3As shown, the turnover block 60 in the embodiment also has an avoiding part 600 formed therein. The avoiding part 600 effectively avoids the direct contact between the turnover block 60 and the first steel wire 11, and ensures the stable fixation of the two steel wires in the support block 50 by the above-mentioned way (abutting against the second steel wire 12 and indirectly fixing the first steel wire 11 through the bending part 110), which provides a guarantee for the subsequent welding quality. The turnover block 60 after being turned over also helps to realize the barrier-free operation in the welding process, and avoids the influence of structural interference on the welding efficiency and welding quality.

[0051] The driving mechanism 7 comprises a mounting seat 70 provided on the tool plate 2, a driving piece 71 provided in the mounting seat 70, an output end of the driving piece 71 connected to a material moving plate 72, and a fixing seat 51 detachably connected to the material moving plate 72. The driving mechanism 7 further comprises a guide rail 73 provided on the tool plate 2 and a guide block 74 with a top wall connected to the material moving plate 72 and a bottom wall movably clamped to the guide rail 73.

[0052] As shown in Figure 1 and Figure 2 When the first steel wire 11 and the second steel wire 12 are fixed in the first positioning cavity 500 and the second positioning cavity 501, respectively, by the cooperation of the support block 50 and the turnover block 60, the whole welding fixture control system can give a signal to open the driving piece 71. In the process of driving the material moving plate 72 to approach the cushion framework 10, the embodiment realizes high-precision linear motion under the guidance of the guide rail 73 and the guide block, greatly guarantees the accuracy of the fitting position between the steel wire and the cushion framework 10, and further provides a guarantee for the subsequent welding quality. It should be noted that the driving piece 71 in the embodiment can be replaced by other driving devices such as hydraulic driving and pneumatic driving.

[0053] The tool plate 2 is further provided with a fixing block 20, the fixing block 20 is connected with a limiting block 21, and the material moving plate 72 movably abuts against the limiting block 21.

[0054] Further, as shown in Figure 2As shown, in the process of driving the material moving plate 72 to move in the specified direction by the driving member 71, the embodiment indirectly realizes the limitation of the positions of the first steel wire 11 and the second steel wire 12 relative to the cushion framework 10 through the close contact of the limiting block 21 with 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 framework 10, and ensures the accuracy of the close contact of the two for welding. Preferably, the limiting block 21 in the embodiment can also be quickly installed and detached with the fixing block 20 by using screws and the like, which provides great convenience for subsequent replacement due to wear or damage. In addition, different thicknesses and numbers of adjusting washers 220 can be additionally arranged between the limiting block 21 and the fixing block 20, which can make the first steel wire 11 and the second steel wire 12 meet the welding requirements of cushion frameworks 10 of different specifications, and effectively improve the flexibility and application range of the welding tool.

[0055] The material moving plate 72 is also provided with a plurality of support seats 75, each of which is connected with a positioning support 750, and the positioning support 750 is provided with a clamping groove 750a for the first steel wire 11 and the second steel wire 12 to extend into.

[0056] Further, as shown in the drawings, Figure 2 during the placement of the first steel wire 11 and the second steel wire 12, the worker or the mechanical hand can place the two steel wires in the corresponding height clamping grooves 750a in advance, and it is worth noting that the positioning support 750 is located at the middle position of the material moving plate 72, and the preliminary positioning of the steel wires is realized through the positioning support 750, thereby providing a guarantee 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.

[0057] Further preferably, as shown in the drawings, Figure 2 after the first steel wire 11 and the second steel wire 12 are placed in the clamping grooves 750a, the 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, effectively preventing the first steel wire 11 and the second steel wire 12 from being separated out of the clamping groove 750a, and further providing stability when the first steel wire 11 and the second steel wire 12 are preliminarily positioned.

[0058] The positioning mechanism 3 comprises: a support frame 30 arranged on the tool plate 2, the support frame 30 being provided with an anti-falling block 31, the anti-falling block 31 and the support frame 30 together forming an anti-falling groove 320, and the cushion framework 10 being placed in the anti-falling groove 320; a fixing frame 33 arranged on the tool plate 2, the fixing frame 33 being connected with a positioning cylinder 34, an output end of the positioning cylinder 34 being connected with a positioning pin 340, and the positioning pin 340 being movably arranged in the cushion framework 10.

[0059] As shown in Figure 4 , the embodiment forms a anti-off groove 320 through the anti-off blocks 31 on both sides of the support frame 30, the opening of the anti-off groove 320 is provided in a V-shaped manner, thereby playing a guiding and limiting effect for the placement of the cushion framework 10, and ensuring the stability of the cushion framework 10 when it is in the anti-off groove 320. After the cushion framework 10 is placed in the anti-off groove 320, the positioning cylinder 34 can drive the positioning pin 340 to be inserted into the assembly hole (not shown in the figure) of the cushion framework 10 at this time, further improving the positioning accuracy of the cushion framework 10, reducing human operation errors, and improving the welding consistency and product qualification rate.

[0060] The pressing mechanism 4 comprises a pressing cylinder 40 and a pressing block 41, the output end of the pressing cylinder 40 is connected with a rotating block 400, the rotating block 400 is connected with a mounting bracket 401, and the pressing block 41 is detachably connected to the bottom wall of the mounting bracket 401.

[0061] As shown in Figure 4 , the pressing mode of the cushion framework 10 in the embodiment is the same as the conventional pressing mode commonly used in the mechanical industry, specifically, after the positioning pin 340 and the anti-off groove 320 accurately position the cushion framework 10, the pressing cylinder 40 can drive the pressing block 41 to gradually approach and press the cushion framework 10 from the originally distant position, thereby limiting the movement of the cushion framework 10 in the Figure 1 vertical direction, cooperating with the limitation of the positioning pin 340 and the anti-off groove 320 to the cushion framework 10 along the Figure 1 horizontal direction, effectively improving the stability during the welding process, and ensuring that the final welding quality of the product can meet the required use requirements.

[0062] It should be noted that in the present application, the description such as "first", "second", "one" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the technical features indicated or the number of the technical features indicated. Therefore, the features limited by "first" and "second" can be explicitly or implicitly included at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. The terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0063] In addition, the technical solutions among various embodiments of the present application can be combined with each other, but it must be based on that a person skilled in the art can realize, when the combination of the technical solutions appears contradictory or cannot be realized, it should be considered that the combination of the technical solutions does not exist, and is not within the protection scope required by the present application.

[0064] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A portable welding jig for simultaneously welding a first steel wire and a second steel wire to a cushion framework, characterized by, The utility model provides a kind of welding device for sofa cushion framework, including: Tool plate, positioning mechanism and pressure mechanism are arranged on it, the positioning mechanism is used to position the cushion framework to be welded, and the cushion framework is limited to move by the pressure mechanism; Supporting mechanism and anti-dropping mechanism are movably arranged on the tool plate, the supporting mechanism includes supporting block, the first positioning cavity and the second positioning cavity with height difference are opened on the supporting block, the openings of the first positioning cavity and the second positioning cavity are all towards the cushion framework, the first steel wire and the second steel wire are placed in the first positioning cavity and the second positioning cavity respectively;The anti-dropping mechanism includes turnover block, the first steel wire and the second steel wire are limited to separate to the outside of the first positioning cavity or the second positioning cavity after the turnover block is turned over; Driving mechanism is movably arranged on the tool plate, the driving mechanism is used to drive the supporting mechanism and the anti-dropping mechanism to be close to or away from the cushion framework to be welded, so that the first steel wire and the second steel wire after being fixed are synchronously attached to the cushion framework.

2. The portable welding fixture of claim 1, wherein, The supporting mechanism further includes fixed seat, the first mounting hole is opened in the fixed seat, the second mounting hole is opened in the supporting block, and the first mounting hole and the second mounting hole are aligned to allow the fastener to pass through, so as to connect the supporting block to the fixed seat.

3. A portable welding fixture according to claim 2, wherein The driving mechanism includes: Mounting seat is arranged on the tool plate; Driving part and material moving plate, the driving part is arranged in the mounting seat, the output end of the driving part is connected to the material moving plate, and the fixed seat is detachably connected to the material moving plate; Guide rail and guide block, the guide rail is arranged on the tool plate, and the top wall of the guide block is connected to the material moving plate, and the bottom wall is movably clamped to the guide rail.

4. The portable welding fixture of claim 2, wherein, The anti-dropping mechanism includes: Mounting plate is connected to the fixed seat, and the mounting plate is formed with an extension part; Connecting plate is arranged on the extension part, and the end portion of the connecting plate away from the extension part is movably hinged to the turnover block; 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 away from the first steel wire and the second steel wire.

5. A portable welding fixture according to claim 4, wherein The turnover block is further formed with an avoiding part.

6. The portable welding fixture of claim 3, wherein, The tool plate is further provided with a fixed block, the fixed block is connected with a limiting block, and the material moving plate is movably abutted to the limiting block.

7. The portable welding fixture of claim 3, wherein, A plurality of supporting seats are further mounted on the material moving plate, and a positioning bracket is connected to each supporting seat, and a clamping groove is opened in the positioning bracket for the first steel wire and the second steel wire to extend into.

8. A portable welding fixture according to claim 7, wherein The positioning bracket is detachably connected with a baffle, and the baffle is used to limit 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 includes: Supporting frame is arranged on the tool plate, the supporting frame is provided with an anti-dropping block, the anti-dropping block and the supporting frame jointly form an anti-dropping groove, and the cushion framework is placed in the anti-dropping groove; Fixed frame is arranged on the tool plate, the fixed frame is connected with a positioning cylinder, the output end of the positioning cylinder is connected with a positioning pin, and the positioning pin is movably inserted into the cushion framework.

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

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