Angle steel welding device

Abstract

The application discloses a kind of angle steel welding device, including welding seat and welding robot, the welding robot is arranged in welding seat one side, the positioning table is movably arranged on the welding seat, the center table is arranged in the center of positioning table, the slide is connected between the center table and the four corners of positioning table, the connecting boss for being matched with the connecting hole on the angle steel base is arranged in the slide, and the driving mechanism for driving the connecting boss to slide along the slide is arranged, the support seat that slides along the edge of welding seat is also arranged on the side wall of welding seat, the support edge for supporting angle steel is arranged on the support seat and is slidably arranged, it is simple in structure, high degree of automation, and welding operation is stable and reliable, with good use effect.

Description

TECHNICAL FIELD

[0001] The application relates to an angle steel welding device. BACKGROUND

[0002] The angle steel is widely applied in tower construction due to the unique right-angle L-shaped section and good mechanical properties. The angle steel is mainly used in tower body main components, support connecting rods, node connecting structures and auxiliary components, can bear vertical and horizontal loads, and enhances the structural stability. The angle steel has advantages of superior mechanical properties, convenient processing and installation, good economy and strong adaptability. Since the weight of a single angle steel often reaches dozens of kilograms or even more, manual carrying and posture adjustment need to consume a lot of physical strength, and it is difficult to accurately position, so that the welding is prone to the problem of uneven assembly gap. The irregular welding structure requires welders to frequently change the operation posture, and the limitation of manual operation makes it difficult to fully cover all the welding seam areas in the welding process, so that hidden defects such as incomplete welding and incomplete fusion are prone to occur. The stability of manual welding is significantly affected by the technical level and fatigue of welders, and when batch operation is performed, problems such as large welding seam size deviation and over-standard undercutting are prone to occur, resulting in a low qualified rate. SUMMARY

[0003] In view of the defects in the prior art, the application provides an angle steel welding device which has the advantages of simple structure, high automation degree, stable and reliable welding operation and good use effect.

[0004] To achieve the above-mentioned purpose, the application provides an angle steel welding device, which comprises a welding seat and a welding robot, the welding robot is arranged on one side of the welding seat, a positioning table is movably arranged on the welding seat, a center table is arranged at the center of the positioning table, a slide is connected between the center table and the four corners of the positioning table, a connecting boss for cooperating with a connecting hole on the bottom of the angle steel and a driving mechanism for driving the connecting boss to slide along the slide are arranged in the slide, a supporting seat which slides along the edge of the welding seat is further arranged on the side wall of the welding seat, and a supporting edge for supporting the angle steel is arranged on the supporting seat.

[0005] The beneficial effect of such an arrangement is that the center table serves as a positioning reference and, together with the slides at the four corners of the positioning table, forms a positioning frame. The driving mechanism controls the sliding of the connecting boss in the slide, allowing flexible adjustment of the position of the connecting boss according to the size and connecting hole position of the angle steel base. When the connecting boss accurately matches the connecting hole on the angle steel base, the preliminary positioning of the angle steel base is achieved, limiting its movement in the horizontal direction. The support seat slides along the edge of the welding seat and can be adjusted in position according to the length of the angle steel and the welding requirements. The support edge on the support seat slides and can closely fit other structures of the angle steel, providing reliable support to prevent the angle steel from shaking or deforming during welding. In the actual welding process, the connecting boss is first adjusted by the driving mechanism to complete the positioning of the angle steel base. Then, the support seat and support edge are moved to achieve preliminary positioning of other parts of the angle steel. Finally, the welding robot performs precise welding on each welding point according to the preset program. This step-by-step positioning and automated welding method ensures high efficiency and precision in the welding process. In terms of precision, the combination of the connecting boss and the connecting hole, as well as the auxiliary positioning of the support seat, can control the installation error of the angle steel to a very small range, ensuring the dimensional accuracy and structural stability of the workpiece after welding. In terms of efficiency, the automated welding robot can work continuously, reducing the time cost and labor intensity of manual welding and significantly improving production efficiency. In terms of cost control, precise positioning and efficient welding reduce the rework and material waste caused by welding quality problems, reducing production costs. In addition, it can adapt to the welding requirements of angle steels of different specifications, has strong universality, and improves the utilization rate of the equipment.

[0006] As a further arrangement of the present application, a turnover frame is provided on the welding seat, the positioning table is arranged on the turnover frame, and a rotating motor is arranged on the turnover frame, with the output end of the rotating motor connected to the bottom surface of the positioning table.

[0007] The beneficial effect of such an arrangement is that the rotating motor directly drives the positioning table through the output end, allowing flexible rotation in multiple angles and directions. In actual processing, when welding the joints on different sides of the angle steel, the operator does not need to manually carry the angle steel, but only needs to control the rotating motor to quickly adjust the welding position to the optimal welding position, avoiding positioning deviation and time loss caused by manual carrying. This design is linked with the connecting boss and the support seat, allowing the angle steel to quickly change its posture after positioning to cooperate with the welding robot, especially suitable for multi-face welding of complex structure angle steel parts, significantly shortening the process connection time, effectively improving the overall processing efficiency, reducing the labor intensity of workers, and ensuring the welding precision.

[0008] As a further arrangement of the present application, the turnover frame is provided with a connecting arm on each side, and the turnover frame is rotatably connected to the welding seat through the connecting arm, and a turnover motor is further arranged on the welding seat to drive the rotation of the turnover frame, and the output end of the turnover motor is in transmission connection with the connecting arm.

[0009] The beneficial effects of such an arrangement are as follows: in this way, the turnover frame is connected to the welding seat in rotation through the connecting arm and is driven by the turnover motor, so that the welding device can flexibly adjust the processing posture, and when facing the complex welding requirements of angle steel, the turnover motor can accurately control the multi-angle rotation of the turnover frame, so that the angle steel on the positioning table is presented at the best angle below the welding robot. For example, when welding the multi-surface joints of the angle steel, the turnover frame can drive the angle steel to turn to the appropriate position without manual re-clamping, and the welding robot can directly continuously weld the welds of different surfaces, avoiding repeated positioning errors. This automatic turnover operation not only greatly shortens the processing auxiliary time, but also reduces manual intervention, and cooperates with the rotation function of the positioning table, thereby improving the efficiency and accuracy of angle steel welding from multiple dimensions.

[0010] As a further arrangement of the present application, the support seat is provided with an adjusting groove, the support edge is slidingly arranged in the adjusting groove, the support seat is swingably provided with a support arm, the outer wall of the support edge is provided with a support groove, a plurality of limiting ribs are arranged on the inner wall of the support groove at intervals, and a limiting tooth is arranged on the end face of the support arm.

[0011] The beneficial effects of such an arrangement are as follows: in this way, the adjusting groove on the support seat and the slidingly arranged support edge constitute a support base that can be flexibly adjusted. When facing angle steel parts of different widths and thicknesses, the operator can easily push the support edge to slide in the adjusting groove to quickly adjust the support distance. The cooperation of the support arm and the support edge further enhances the positioning effect. The swingably arranged support arm can be fitted to the inner wall of the support groove, and the limiting tooth thereon can be accurately clamped into the gap of the limiting rib to form a stable engagement structure. This design not only ensures that the support edge will not be displaced due to vibration during welding, but also allows quick unlocking by lifting the support arm when adjustment is needed, and repositioning and firm clamping again. Through this flexible and reliable positioning method, the device can efficiently adapt to the welding requirements of angle steels of various specifications, greatly improving the versatility and processing stability of the equipment.

[0012] As a further arrangement of the present application, the positioning table is further provided with a clamping piece, and the clamping piece is provided with two intersecting clamping grooves.

[0013] The beneficial effect of such an arrangement is that the clamping piece on the positioning table can precisely fit the top profile of the mutually staggered angle steel parts by virtue of the two mutually intersecting clamping grooves. When the angle steel parts are in the predetermined position, the clamping piece can be directly pressed down, so that the edges of the angle steel are embedded in the clamping grooves, and through the close contact between the groove walls and the surface of the angle steel, a multidirectional limiting constraint is formed. This design not only quickly fixes the relative positions of adjacent angle steels and avoids displacement caused by thermal deformation or external force during welding, but also effectively disperses welding stress. In the welding of complex angle steel structures, the clamping piece can assist in building a stable three-dimensional frame, ensuring that the angle steel parts connected in multiple layers and multiple directions always maintain precise alignment during the welding process, thereby significantly improving the overall welding quality and structural strength.

[0014] As a further arrangement of the present application, the welding robot comprises a base, a six-axis driven arm and a clamp, the base is arranged on one side of the welding seat, one end of the six-axis driven arm is connected to the base, and the other end is provided with a matching port, the clamp is provided with a positioning spring on the side wall, a positioning sleeve is slidably arranged on the outer wall of the clamp, and a positioning protruding column extending from the positioning sleeve to the positioning spring is arranged on the positioning sleeve for keeping the positioning spring in contact with the inner wall of the matching port, and the insertion end of the positioning protruding column is arranged in a slope.

[0015] The beneficial effect of such an arrangement is that when the clamp is docked with the matching port of the six-axis driven arm, the operator inserts the clamp into the matching port, at which time the positioning spring first preliminarily contacts the inner wall of the matching port. Then slide the positioning sleeve, the positioning protruding column extrudes the positioning spring by virtue of the slope design, so that it produces elastic deformation and tightly fits the inner wall of the matching port, forming a multidirectional pressure constraint to ensure that the clamp is firmly fixed, and it is not easy to loosen even in high-speed welding and complex motion. When disassembling, only need to slide the positioning sleeve in the opposite direction, remove the extrusion of the positioning protruding column on the positioning spring, and the positioning spring returns to its original state, so that the clamp can be easily pulled out. This structure greatly reduces the time cost of replacing the clamp, adapts to different specifications of angle steel welding requirements, while ensuring welding accuracy and stability, significantly improving production efficiency and equipment flexibility.

[0016] As a further arrangement of the present application, the positioning spring comprises a connecting portion, a contact portion for keeping in contact with the inner wall of the matching port when the positioning protruding column is inserted, and a bending portion for folding the positioning spring when the clamp is separated from the matching groove, the connecting portion is obliquely connected to the outer wall of the clamp, the connecting portion is elastically arranged, and an embedding groove corresponding to the bending portion of the positioning spring is arranged on the outer wall of the positioning protruding column.

[0017] The beneficial effect of such arrangement is that the three-section structure of the connecting part, the contact part and the bending part of the positioning spring forms a dynamic self-adaptive mechanical transmission system. The connecting part is elastically connected to the outer wall of the clamp at an inclined angle, which provides basic support for the positioning spring and reserves reset potential energy through elastic deformation. When the positioning convex column is inserted, the contact part is pushed outward by the inclined surface of the positioning convex column, and the arc surface design ensures that it is in close contact with the inner wall of the matching opening to generate uniform friction force, effectively resisting the axial movement and circumferential torsion of the clamp during welding, and avoiding accidental disengagement due to vibration. In the clamp disassembly scene, when the reverse sliding positioning sleeve is used, the positioning convex column is disengaged from the embedded groove, and the bending part is in contact with the edge of the matching opening first, and the preset bending angle forces the positioning spring to gather towards the center. This design converts the "sliding positioning sleeve" action of manual operation into the automatic reset power of the positioning spring, which can quickly disengage the clamp without additional force, significantly improving the disassembly efficiency. In addition, the embedded groove and the bending part form a mechanical locking structure: when the positioning convex column is fully inserted, the bending part is inserted into the embedded groove, preventing accidental sliding of the positioning sleeve through geometric limiting, ensuring the connection stiffness of the clamp and the driving arm during welding, so that the structure can withstand dynamic load during high-speed welding and maintain operational convenience in the context of frequent model changes, especially suitable for flexible production lines of angle steel welding with multiple varieties and small batches, providing key technical support for the continuity and stability of automatic welding.

[0018] As a further arrangement of the present application, the positioning sleeve is further provided with a push groove, a push button is slidingly arranged in the push groove, and an unlocking slider for abutting against the bending part of the positioning spring to make the bending part disengage from the embedded groove is slidingly arranged between the push button and the embedded groove. A reset spring for resetting the unlocking slider is arranged between the unlocking slider and the inner wall of the push groove.

[0019] The beneficial effect of such arrangement is that the addition of the push groove and the push button provides a more direct and efficient operation mode for the separation of the positioning sleeve and the positioning spring. When the clamp needs to be disassembled, the operator only needs to push the push button, and the unlocking slider will move accurately in the direction of the embedded groove along the guide of the push groove. After the unlocking slider contacts the bending part of the positioning spring, a lateral pushing force is applied by using the inclined surface principle to force the bending part to overcome the elastic resistance and disengage from the embedded groove, simultaneously releasing the pressing constraint of the positioning convex column on the positioning spring. This design simplifies the traditional operation of sliding the positioning sleeve multiple times into a single push button action, effectively avoiding the disassembly difficulty caused by the jamming of the positioning sleeve, especially suitable for high-strength and high-frequency clamp replacement scenarios. At the same time, the straight-line sliding design of the push button is simple and reliable, which not only reduces the operation threshold but also significantly shortens the clamp replacement time, significantly improving the overall efficiency of the welding equipment.

[0020] As a further arrangement of the present application, the positioning elastic sheet contact portion is provided with a plurality of positioning teeth on the outer wall thereof, and the contact surface of the matching mouth is provided with a tooth surface.

[0021] The beneficial effect of such an arrangement is that the positioning teeth of the positioning elastic sheet contact portion and the tooth surface of the matching mouth are mutually embedded, increasing the contact area and friction force therebetween, and forming a mechanical engagement effect, such as the mutual engagement of gears, to limit the relative displacement. During the welding operation, the tight matching structure can effectively resist external forces caused by welding thermal deformation and mechanical vibration, prevent the clamp from loosening, and ensure the welding precision. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 FIG. 1 is a structural schematic diagram of an embodiment of the present application;

[0023] Figure 2 FIG. 2 is a structural schematic diagram of the welding seat when assembling a workpiece in an embodiment of the present application;

[0024] Figure 3 FIG. 3 is a structural schematic diagram of the welding seat in an embodiment of the present application;

[0025] Figure 4 FIG. 4 is a structural schematic diagram of the clamp in an embodiment of the present application;

[0026] Figure 5 FIG. 5 is a structural schematic diagram of the positioning sleeve on the clamp in an embodiment of the present application;

[0027] Figure 6 FIG. 6 is a sectional structural schematic diagram of the positioning sleeve on the clamp in an embodiment of the present application. DETAILED DESCRIPTION

[0028] The embodiment of the angle steel welding device of the present application is as follows: Figures 1 to 6As shown: including the welding seat 1 and the welding robot, the welding robot is arranged on one side of the welding seat 1, the positioning table 12 is movably arranged on the welding seat 1, the center table 14 is arranged at the center of the positioning table 12, the slide 13 is connected between the center table 14 and the four corners of the positioning table 12, the connecting boss 131 for cooperating with the connecting hole on the angle steel base 21 is arranged in the slide 13, and the driving mechanism for driving the connecting boss 131 to slide along the slide 13 is arranged, and the support seat 3 sliding along the edge of the welding seat 1 is further arranged on the side wall of the welding seat 1, and the support edge 31 for supporting the angle steel is arranged on the support seat 3. The beneficial effects of such arrangement are: the center table 14 serves as a positioning reference, and the slide 13 at the four corners of the positioning table 12 together forms a positioning frame. The driving mechanism controls the sliding of the connecting boss 131 in the slide 13, and can flexibly adjust the position of the connecting boss 131 according to the size and connecting hole position of the different angle steel bases 21. When the connecting boss 131 accurately cooperates with the connecting hole on the angle steel base 21, the preliminary positioning of the angle steel base 21 is realized, and the movement of the angle steel base 21 in the horizontal direction is limited. The support seat 3 sliding along the edge of the welding seat 1 can adjust the position according to the length of the angle steel and the welding requirement, and the support edge 31 slidingly arranged on the support seat 3 can closely fit with other structures of the angle steel to provide reliable support and prevent the angle steel from shaking or deforming during welding. In the actual welding process, the connecting boss 131 is first adjusted by the driving mechanism to complete the positioning of the angle steel base 21; then the support seat 3 and the support edge 31 are moved to realize the preliminary positioning of other parts of the angle steel; finally, the welding robot performs accurate welding on each welding point according to the preset program. This step-by-step positioning and automatic welding method ensures the efficiency and accuracy of the welding process. In terms of precision, through the cooperation of the connecting boss 131 and the connecting hole and the auxiliary positioning of the support seat 3, the installation error of the angle steel can be controlled within a very small range, ensuring the dimensional accuracy and structural stability of the workpiece after welding. In terms of efficiency, the automatic welding robot can work continuously, reducing the time cost and labor intensity of manual welding and greatly improving the production efficiency. In terms of cost control, accurate positioning and efficient welding reduce the rework and material waste caused by welding quality problems, reducing production costs. In addition, it can also meet the welding requirements of angle steels of different specifications, has strong universality, and improves the utilization rate of equipment.

[0029] As a further arrangement of the present embodiment, the welding seat 1 is provided with a turnover frame 11, the positioning table 12 is arranged on the turnover frame 11, the turnover frame 11 is provided with a rotating motor, and the output end of the rotating motor is connected with the bottom surface of the positioning table 12. The beneficial effect of such an arrangement is that the rotating motor directly drives the positioning table 12 through the output end, and the positioning table 12 can be flexibly rotated in multiple angles and multiple directions. In actual processing, when the joints of different sides of the angle steel need to be welded, the operator does not need to manually carry the angle steel, but only needs to control the rotating motor to quickly adjust the welding position to the optimal welding position, thereby avoiding positioning deviation and time loss caused by manual carrying. The design is linked with the connecting boss 131 and the support seat 3, so that the angle steel can quickly change its posture to cooperate with the welding robot after positioning, especially suitable for multi-surface welding of angle steel parts with complex structures, which greatly shortens the process connection time, effectively improves the overall processing efficiency, reduces the labor intensity of workers, and ensures the welding precision.

[0030] As a further arrangement of the present embodiment, the turnover frame 11 is provided with a connecting arm on each side, the turnover frame 11 is rotatably connected to the welding seat 1 through the connecting arm, the welding seat 1 is further provided with a turnover motor for driving the turnover frame 11 to rotate, and the output end of the turnover motor is in transmission connection with the connecting arm. The beneficial effect of such an arrangement is that the turnover frame 11 is rotatably connected to the welding seat 1 through the connecting arm and is driven by the turnover motor, so that the welding device can flexibly adjust the processing posture. When facing the complex welding requirements of the angle steel, the turnover motor can accurately control the turnover frame 11 to rotate in multiple angles, so that the angle steel on the positioning table 12 is presented below the welding robot at the optimal angle. For example, when welding the multi-surface joints of the angle steel, the turnover frame 11 can drive the angle steel to turn to the appropriate position without manual re-clamping, and the welding robot can directly continuously weld the welds of different surfaces to avoid repeated positioning errors. Such automatic turnover operation not only greatly shortens the processing auxiliary time, but also reduces manual intervention. The rotating function of the positioning table 12 is matched with each other, and the efficiency and precision of the angle steel welding are improved from multiple dimensions.

[0031] As a further arrangement of the present embodiment, the support base 3 is provided with an adjusting groove, the support edge 31 is slidingly arranged in the adjusting groove, the support base 3 is swingably provided with a support arm 32, the support edge 31 is provided with a support groove on the outer wall, a plurality of limiting ribs are arranged on the inner wall of the support groove at intervals, and the support arm 32 is provided with a limiting tooth on the end face. The beneficial effect of such an arrangement is that the adjusting groove on the support base 3 and the slidingly arranged support edge 31 form a support base that can be flexibly adjusted. When facing different widths and thicknesses of angle steel parts, the operator can easily push the support edge 31 to slide in the adjusting groove, quickly adjusting the support distance. The cooperation of the support arm 32 and the support edge 31 further enhances the positioning effect. The swingably arranged support arm 32 can be fitted to the inner wall of the support groove, and the limiting tooth thereon can be precisely clamped into the gap of the limiting rib, forming a stable occlusion structure. This design not only ensures that the support edge 31 will not be displaced due to vibration during welding, but also allows quick unlocking by lifting the support arm 32 when adjustment is needed, and repositioning and firmly clamping again. Through this flexible and reliable positioning method, the device can efficiently adapt to the welding needs of angle steels of various specifications, greatly improving the versatility and processing stability of the equipment.

[0032] As a further arrangement of the present embodiment, the positioning table 12 is further provided with a clamping piece, and the clamping piece is provided with two intersecting clamping grooves. The beneficial effect of such an arrangement is that the clamping piece on the positioning table 12 can precisely fit the top profile of the mutually staggered angle steel parts by means of the two intersecting clamping grooves. When the angle steel parts are in the predetermined position, the clamping piece can be directly pressed down, so that the edges of the angle steel are embedded in the clamping groove, and through the close contact between the groove wall and the surface of the angle steel, a multi-directional limiting constraint is formed. This design not only quickly fixes the relative position of adjacent angle steels, avoiding displacement caused by thermal deformation or external force during welding, but also effectively disperses welding stress. In the welding of complex angle steel structures, the clamping piece can assist in building a stable three-dimensional frame, ensuring that the angle steel parts connected in multiple layers and directions always maintain precise alignment during welding, significantly improving the overall welding quality and structural strength.

[0033] As a further arrangement of the present embodiment, the welding robot comprises a base 21 arranged at one side of the welding seat 1, a six-axis driven arm 22 connected at one end to the base 21 and provided with a matching port at the other end, and a clamp 23 provided with a positioning spring 4 on the side wall thereof, and a positioning sleeve 5 slidingly arranged on the outer wall of the clamp 23, wherein the positioning sleeve 5 extends towards the positioning spring 4 a positioning protrusion 51 for keeping the positioning spring 4 in contact with the inner wall of the matching port, and the insertion end of the positioning protrusion 51 is arranged in a bevel. The beneficial effect of such an arrangement is that when the clamp 23 is docked with the matching port of the six-axis driven arm 22, the operator inserts the clamp 23 into the matching port, and at this time the positioning spring 4 first preliminarily contacts the inner wall of the matching port. Then the positioning sleeve 5 is slid, and the positioning protrusion 51 extrudes the positioning spring 4 by virtue of the bevel design, so that the positioning spring 4 is elastically deformed and tightly fitted to the inner wall of the matching port, forming a multidirectional pressure constraint to ensure that the clamp 23 is firmly fixed and is not easily loosened even in high-speed welding and complex movements. When disassembling, the positioning sleeve 5 is only needed to be reversely slid to release the extrusion of the positioning spring 4 by the positioning protrusion 51, and the positioning spring 4 returns to its original state, so that the clamp 23 can be easily pulled out. Such a structure greatly reduces the time cost of replacing the clamp 23, adapts to the welding requirements of different specifications of angle steels, guarantees the welding precision and stability, and significantly improves the production efficiency and equipment flexibility.

[0034] As a further arrangement of the present embodiment, the positioning spring 4 comprises a connecting portion 41, a contact portion 42 and a bending portion 43 connected in sequence, the connecting portion 41 is obliquely connected to the outer wall of the clamp 23, the connecting portion 41 is elastically arranged, and the outer wall of the positioning protrusion 51 is provided with an embedding groove 52 corresponding to the bending portion 43 of the positioning spring 4. The beneficial effect of such an arrangement is that the three-section structure of the connecting portion 41, the contact portion 42 and the bending portion 43 of the positioning spring 4 forms a dynamic self-adaptive mechanical transmission system. The connecting portion 41 is elastically connected to the outer wall of the clamp 23 at an oblique angle, which not only provides basic support for the positioning spring 4, but also reserves reset potential energy through elastic deformation. When the positioning protrusion 51 is inserted, the contact portion 42 is pushed outward by the inclined surface of the positioning protrusion 51, and the curved surface design ensures that it is in close contact with the inner wall of the matching port to generate uniform friction force, effectively resisting the axial movement and circumferential torsion of the clamp 23 during welding, and avoiding accidental disengagement due to vibration. In the clamp 23 disassembly scenario, when the positioning sleeve 5 is reversely slid, the positioning protrusion 51 is disengaged from the embedding groove 52, and the bending portion 43 first contacts the edge of the matching port, and the preset bending angle forces the positioning spring 4 to contract towards the center. This design converts the manual "sliding positioning sleeve 5" action into the automatic reset power of the positioning spring 4, allowing the clamp 23 to quickly disengage without additional force, significantly improving disassembly efficiency. In addition, the embedding groove 52 and the bending portion 43 form a mechanical locking structure: when the positioning protrusion 51 is fully inserted, the bending portion 43 is inserted into the embedding groove 52, preventing accidental sliding of the positioning sleeve 5 through geometric limiting, ensuring the connection stiffness of the clamp 23 and the driving arm during welding, making the structure not only able to withstand dynamic load during high-speed welding, but also able to maintain operational convenience in multi-frequency change scenarios, especially suitable for multi-variety, small-batch angle steel welding flexible production lines, providing key technical support for the continuity and stability of automatic welding.

[0035] As a further arrangement of the present embodiment, the positioning sleeve 5 is further provided with a push groove, and a push button 53 is slidingly arranged in the push groove. An unlocking slider 54 is slidingly arranged between the push button 53 and the embedding groove, and is used to abut against the bent portion 43 of the positioning elastic sheet 4 to make the bent portion 43 disengage from the embedding groove 52. A reset spring is arranged between the unlocking slider 54 and the inner wall of the push groove to reset the unlocking slider 54. The beneficial effect of such an arrangement is that the push groove and the push button 53 provide a more direct and efficient operation mode for the separation of the positioning sleeve 5 and the positioning elastic sheet 4. When the clamp 23 needs to be disassembled, the operator only needs to push the push button 53, and the unlocking slider will move in the direction of the embedding groove 52 along the guide of the push groove. After the unlocking slider contacts the bent portion 43 of the positioning elastic sheet 4, a lateral pushing force is applied by using the inclined surface principle to force the bent portion 43 to overcome the elastic resistance and disengage from the embedding groove 52, and simultaneously release the extrusion constraint of the positioning convex column 51 on the positioning elastic sheet 4. This design simplifies the traditional operation of sliding the positioning sleeve 5 multiple times into a single push button 53 action, effectively avoids the disassembly difficulty caused by the jamming of the positioning sleeve 5, and is especially suitable for high-strength and high-frequency clamp 23 replacement scenarios. At the same time, the linear sliding design of the push button 53 is simple and reliable, which not only reduces the operation threshold, but also greatly shortens the clamp 23 replacement time and significantly improves the overall use efficiency of the welding equipment.

[0036] As a further arrangement of the present embodiment, the outer wall of the contact portion 42 of the positioning elastic sheet 4 is provided with a plurality of positioning teeth, and the contact surface of the matching mouth is provided with a tooth surface. The beneficial effect of such an arrangement is that the positioning teeth of the contact portion 42 of the positioning elastic sheet 4 and the tooth surface of the matching mouth are mutually embedded, which increases the contact area and friction force between them and forms a mechanical engagement effect, such as the mutual engagement of gears, to limit the relative displacement. During welding operation, this tight fitting structure can effectively resist external forces generated by welding thermal deformation and mechanical vibration, prevent the clamp 23 from loosening, and ensure welding precision.

[0037] The above examples are only one of the preferred specific examples of the present application, and the usual changes and substitutions made by those skilled in the art within the scope of the technical solutions of the present application are all included in the protection scope of the present application.

Claims

1. A corner steel welding device comprising a welding seat and a welding robot, the welding robot is arranged on one side of the welding seat, characterized in that: The positioning table is movably arranged on the welding seat, and a center table is arranged at the center of the positioning table, wherein a slide is connected between the center table and the four corners of the positioning table, a connecting boss for matching with a connecting hole on the angle steel base is arranged in the slide, and a driving mechanism for driving the connecting boss to slide along the slide is arranged in the slide, a supporting seat sliding along the edge of the welding seat is further arranged on the side wall of the welding seat, a supporting edge for supporting the angle steel is movably arranged on the supporting seat, an adjusting groove is arranged on the supporting seat, the supporting edge is movably arranged in the adjusting groove, a supporting arm is swingably arranged on the supporting seat, a supporting groove is arranged on the outer wall of the supporting edge, a plurality of limiting ribs are arranged on the inner wall of the supporting groove at intervals, a limiting tooth is arranged on the end face of the supporting arm, the welding robot comprises a base, a six-axis driving arm and a clamp, the base is arranged on one side of the welding seat, one end of the six-axis driving arm is connected to the base, and the other end is provided with a matching opening, a positioning spring is arranged on the side wall of the clamp, a positioning sleeve is movably arranged on the outer wall of the clamp, the positioning sleeve extends towards the positioning spring and is provided with a positioning protruding column for keeping the positioning spring in contact with the inner wall of the matching opening, and the insertion end of the positioning protruding column is arranged in an inclined manner, the positioning spring comprises a connecting portion, a contact portion for keeping the positioning protruding column in contact with the inner wall of the matching opening when the positioning protruding column is inserted, and a bending portion for folding the positioning spring when the clamp is separated from the matching groove, the connecting portion is obliquely connected to the outer wall of the clamp, the connecting portion is elastically arranged, an embedding groove is arranged on the outer wall of the positioning protruding column corresponding to the bending portion of the positioning spring, a pushing groove is further arranged on the positioning sleeve, a push button is movably arranged in the pushing groove, an unlocking slider for resisting the bending portion of the positioning spring to make the bending portion separate from the embedding groove is movably arranged between the push button and the embedding groove, and a return spring for returning the unlocking slider is arranged between the unlocking slider and the inner wall of the pushing groove.

2. The angle steel welding device according to claim 1, characterized in that: The welding seat is provided with a turnover frame, the positioning table is arranged on the turnover frame, and a rotating motor is arranged on the turnover frame.

3. The angle steel welding apparatus according to claim 2, characterized in that: Connecting arms are arranged on the two sides of the turnover frame, the turnover frame is rotatably connected to the welding seat through the connecting arms, a turnover motor for driving the turnover frame to rotate is further arranged on the welding seat, and the output end of the turnover motor is in transmission connection with the connecting arms.

4. The angle steel welding apparatus according to claim 1, characterized in that: A clamping piece is further arranged on the positioning table, and two clamping grooves intersecting with each other are arranged on the clamping piece.

5. The angle iron welding apparatus of claim 1, wherein: A plurality of limiting teeth are arranged on the outer wall of the contact portion of the positioning spring, and the contact surface of the matching opening and the positioning spring is arranged as a tooth surface.

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