Angle steel welding device

Abstract

The angle steel welding device comprises a welding base and a welding robot, the welding robot is arranged on one side of the welding base, a positioning table is movably arranged on the welding base, a center table is arranged in the center of the positioning table, and sliding ways are connected between the center table and the four corners of the positioning table; a connecting boss used for being matched with a connecting hole in an angle steel base and a driving mechanism used for driving the connecting boss to slide along the sliding way are arranged in the sliding way, a supporting seat sliding along the edge of the welding seat is further arranged on the side wall of the welding seat, and a supporting edge used for supporting angle steel is arranged on the supporting seat in a sliding mode. The automatic welding device is simple in structure, high in automation degree, stable and reliable in welding operation and good in using effect.

Description

Technical Field

[0001] The present invention relates to an angle steel welding device. Background Art

[0002] Due to its unique right-angled L-shaped cross-section and good mechanical properties, angle steel is widely used in the construction of iron towers. It is mainly used in parts such as the main components of the tower body, support connecting rods, node connection structures, and auxiliary components, and can bear vertical and horizontal loads to enhance the structural stability. Angle steel has the advantages of excellent 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 heavier, manual handling and posture adjustment require a lot of physical strength, and it is difficult to accurately position, resulting in uneven assembly gaps during welding. Irregular welding structures require welders to frequently change their operating postures. At the same time, the limitations of manual operation make it difficult to fully cover all weld areas during the welding process, and hidden defects such as missed welding and lack of fusion are likely to occur. The stability of manual welding is significantly affected by the welder's technical level and fatigue. During batch operations, problems such as large deviations in weld dimensions and excessive undercut are likely to occur, resulting in a low qualification rate. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides an angle steel welding device, which has a simple structure, a high degree of automation, stable and reliable welding operations, and good use effects.

[0004] To achieve the above object, the present invention provides an angle steel welding device, including a welding base and a welding robot. The welding robot is arranged on one side of the welding base. A positioning table is movably arranged on the welding base. A center table is arranged at the center of the positioning table. Slideways are connected between the center table and the four corners of the positioning table. A connecting boss for cooperating with the connecting holes on the angle steel base and a driving mechanism for driving the connecting boss to slide along the slideway are arranged in the slideways. A support base sliding along the edge of the welding base is also arranged on the side wall of the welding base. A support edge for supporting the angle steel is slidably arranged on the support base.

[0005] The beneficial effects of such a setting are as follows: With such a setting, the central platform serves as a positioning reference, and together with the slideways at the four corners of the positioning platform, a positioning framework is constructed. The driving mechanism can flexibly adjust the position of the connecting boss by controlling the sliding of the connecting boss in the slideway according to the sizes and connecting hole positions of different angle steel bases. When the connecting boss is accurately matched with the connecting holes on the angle steel base, the preliminary positioning of the angle steel base is achieved, restricting its movement in the horizontal direction. The support base that slides along the edge of the welding seat can adjust its position according to the length of the angle steel and the welding requirements, and the support edge slidably arranged on the support base can closely fit with other structures of the angle steel, providing reliable support to prevent the angle steel from shaking or deforming during the welding process. During the actual welding process, first, the driving mechanism is used to adjust the connecting boss to complete the positioning of the angle steel base; then, the support base and the support edge are moved to achieve the 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 method of step-by-step positioning and automated welding ensures the efficiency and precision of the welding process. In terms of precision, through the cooperation between the connecting boss and the connecting hole and the auxiliary positioning of the support base, 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 automated welding robot can operate continuously, reducing the time cost and labor intensity of manual welding and significantly improving the production efficiency. In terms of cost control, precise positioning and efficient welding reduce rework and material waste caused by welding quality problems, lowering the production cost. In addition, it can adapt to the welding requirements of different specifications of angle steel, has strong versatility, and improves the utilization rate of the equipment.

[0006] As a further setting of the present invention, a flipping frame is provided on the welding seat, the positioning platform is arranged on the flipping frame, a rotating motor is provided on the flipping frame, and the output end of the rotating motor is connected to the bottom surface of the positioning platform.

[0007] The beneficial effects of such a setting are as follows: With such a setting, the rotating motor directly drives the positioning platform through the output end, enabling flexible rotation at multiple angles and in multiple directions. During actual processing, when welding the seams on different sides of the angle steel, the operator does not need to manually carry the angle steel. Only by controlling the rotating motor, the welding part can be quickly adjusted to the best welding position, avoiding positioning deviation and time loss caused by manual handling. This design forms a linkage with the connecting boss and the support base, enabling the angle steel to quickly change its posture to cooperate with the welding robot after positioning, especially suitable for the multi-sided welding scenario of angle steel parts with complex structures, significantly shortening the process connection time, effectively improving the overall processing efficiency, reducing the labor intensity of workers, and ensuring welding precision at the same time.

[0008] As a further arrangement of the present invention, connecting arms are respectively provided on both sides of the flipping frame. The flipping frame is rotationally connected to the welding base through the connecting arms. A flipping motor for driving the flipping frame to rotate is also provided on the welding base, and the output end of the flipping motor is in transmission connection with the connecting arm.

[0009] The beneficial effects of such an arrangement are as follows: With such an arrangement, the flipping frame is rotationally connected to the welding base through the connecting arms and is driven by the flipping motor. This enables the welding device to flexibly adjust the processing posture. When facing the complex welding requirements of angle steel, the flipping motor can accurately control the flipping frame to rotate at multiple angles, presenting the angle steel on the positioning table at the best angle below the welding robot. For example, when welding the multi-sided seams of angle steel, there is no need for manual re-clamping. The flipping frame can drive the angle steel to flip to a suitable position, and the welding robot can directly perform continuous welding on the welds of different surfaces, avoiding repeated positioning errors. This automated flipping operation not only greatly shortens the processing auxiliary time but also reduces manual intervention. Cooperating with the rotation function of the positioning table, it improves the efficiency and accuracy of angle steel welding from multiple dimensions.

[0010] As a further arrangement of the present invention, an adjustment groove is provided on the support base. The support edge is slidably arranged in the adjustment groove. A support arm is swingably arranged on the support base. A support groove is provided on the outer wall of the support edge, and a number of limiting ribs are spaced apart on the inner wall of the support groove. Limiting teeth are provided on the end face of the support arm.

[0011] The beneficial effects of such an arrangement are as follows: With such an arrangement, the adjustment groove on the support base and the slidably arranged support edge form a flexibly adjustable support foundation. When facing angle steel components of different widths and thicknesses, the operator can easily push the support edge to slide in the adjustment groove to quickly adjust the support spacing. The cooperation between the support arm and the support edge further strengthens the positioning effect. The swingably arranged support arm can fit against the inner wall of the support groove, and the limiting teeth thereon can accurately engage into the gaps between the limiting ribs to form a stable locking structure. This design not only ensures that the support edge will not displace due to vibration during welding but also can be quickly unlocked by lifting the support arm when adjustment is needed, and firmly clamped again after repositioning. Through this flexible and reliable positioning method, the device can efficiently adapt to the welding requirements of various specifications of angle steel, greatly improving the versatility and processing stability of the equipment.

[0012] As a further arrangement of the present invention, a clamping member is also provided on the positioning table, and two intersecting clamping grooves are provided on the clamping member.

[0013] The beneficial effects of such a setting are as follows: With such a setting, the clamping parts on the positioning table can accurately fit the top contours of the staggered angle steel parts by virtue of the two mutually intersecting clamping grooves. After the angle steel parts are in the predetermined positions, the clamping parts can be directly pressed down, enabling the edges of the angle steel to be inserted into the clamping grooves. Through the close contact between the groove walls and the surface of the angle steel, multi-directional limiting constraints are formed. This design can not only quickly fix the relative positions of adjacent angle steels, avoiding displacement caused by thermal deformation or external forces during welding, but also effectively disperse the welding stress. In the welding of complex angle steel structures, the clamping parts can assist in constructing a stable three-dimensional framework, ensuring that the multi-layer and multi-directional connected angle steel parts always maintain accurate alignment during the welding process, significantly improving the overall welding quality and structural strength.

[0014] As a further setting of the present invention, the welding robot includes a base, a six-axis drive arm, and a fixture. The base is arranged on one side of the welding seat. One end of the six-axis drive arm is connected to the base, and the other end is provided with a mating port. The side wall of the fixture is provided with a positioning elastic piece, and a positioning sleeve is slidably arranged on the outer wall of the fixture. A positioning convex column extending towards the positioning elastic piece is arranged on the positioning sleeve for keeping the positioning elastic piece in contact with the inner wall of the mating port, and the insertion end of the positioning convex column is arranged in an inclined surface.

[0015] The beneficial effects of such a setting are as follows: With such a setting, when the fixture is docked with the mating port of the six-axis drive arm, the operator inserts the fixture into the mating port. At this time, the positioning elastic piece first comes into preliminary contact with the inner wall of the mating port. Subsequently, the positioning sleeve is slid, and the positioning convex column squeezes the positioning elastic piece by virtue of the inclined surface design, causing it to undergo elastic deformation and closely fit the inner wall of the mating port, forming multi-directional pressure constraints to ensure that the fixture is firmly fixed and not prone to loosening even during high-speed welding and complex movements. When disassembling, only need to slide the positioning sleeve in the reverse direction to relieve the extrusion of the positioning convex column on the positioning elastic piece, and the positioning elastic piece returns to its original state, then the fixture can be easily pulled out. This structure greatly reduces the time cost of replacing the fixture, adapts to the welding requirements of different specifications of angle steels, and at the same time ensures the welding accuracy and stability, significantly improving the production efficiency and equipment flexibility.

[0016] As a further setting of the present invention, the positioning elastic piece includes a connecting portion, a contact portion for keeping in contact with the inner wall of the mating port when the positioning convex column is inserted, and a bending portion for making the positioning elastic piece fold up when the fixture disengages from the mating groove, which are connected in sequence. The connecting portion is obliquely connected to the outer wall of the fixture, the connecting portion is elastically arranged, and an embedding groove is arranged on the outer wall of the positioning convex column corresponding to the bending portion of the positioning elastic piece.

[0017] The beneficial effect of this arrangement is that the three-section structure of the connection part, contact part and bending part of the positioning spring piece forms a dynamic adaptive mechanical conduction system. The connection part is elastically connected to the outer wall of the fixture at an inclined angle, which not only provides basic support for the positioning spring piece, but also reserves reset potential energy through elastic deformation. When the positioning boss is inserted, the contact part is stretched outward under the thrust of the inclined surface of the positioning boss. Its arc surface design ensures a large-area fit with the inner wall of the matching mouth, generating uniform friction, effectively resisting the axial movement and circumferential torsion of the fixture during welding, and avoiding accidental disengagement due to vibration. In the fixture disassembly scenario, when the positioning sleeve is slid in the reverse direction and the positioning boss is disengaged from the embedded groove, the bending part first contacts the edge of the matching mouth, and its preset bending angle forces the positioning spring piece to converge toward the center. This design converts the manually operated "sliding positioning sleeve" action into the automatic reset power of the positioning spring piece, and the fixture can be quickly disengaged without additional force, which significantly improves the disassembly efficiency. In addition, the cooperation between the embedded groove and the bent part forms a mechanical locking structure: when the positioning boss is fully inserted, the bent part is stuck in the embedded groove, and the geometric limit is used to prevent the positioning sleeve from accidentally sliding, thereby ensuring the connection stiffness between the fixture and the drive arm during welding. This allows the structure to withstand the dynamic load during high-speed welding and maintain ease of operation in multi-frequency changeover scenarios. It is especially suitable for flexible production lines for angle steel welding with multiple varieties and small batches, and provides key technical support for the continuity and stability of automated welding.

[0018] As a further configuration of the present invention, a push groove is also provided on the positioning sleeve, a push button is slidably provided in the push groove, an unlocking slider is slidably provided between the push button and the embedding groove for resisting the bent portion of the positioning spring piece to cause the bent portion to separate from the embedding groove, and a reset spring is provided between the unlocking slider and the inner wall of the push groove for resetting the unlocking slider.

[0019] The beneficial effect of such a setting is that the addition of the push groove and the push button provides a more direct and efficient operation method for the separation of the positioning sleeve and the positioning spring. When the fixture needs to be disassembled, the operator only needs to push the push button, and its 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 bent part of the positioning spring, the lateral thrust is applied by using the inclined plane principle, forcing the bent part to overcome the elastic resistance and detach from the embedded groove, and simultaneously release the squeezing constraint of the positioning boss 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 difficulty of disassembly caused by the jamming of the positioning sleeve, and is especially suitable for high-intensity and high-frequency fixture replacement scenarios. At the same time, the linear sliding design of the push button has a simple structure and strong reliability, which not only lowers the operating threshold, but also greatly shortens the fixture replacement time, significantly improving the overall use efficiency of the welding equipment.

[0020] As a further configuration of the present invention, a plurality of positioning teeth are arranged on the outer wall of the contact portion of the positioning spring sheet, and the contact surface between the matching opening and the positioning spring sheet is arranged as a tooth surface.

[0021] The beneficial effect of this arrangement is that the positioning teeth of the positioning spring contact part and the matching tooth surface are interlocked, increasing the contact area and friction between the two, forming a mechanical bite effect, just like the meshing of gears to limit relative displacement. During welding operations, this tight-fitting structure can effectively resist the external forces caused by welding thermal deformation and mechanical vibration, prevent the fixture from loosening, and ensure welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment of the present invention; Figure 2 It is a structural schematic diagram of the welding seat when assembling a workpiece in an embodiment of the present invention; Figure 3 It is a structural schematic diagram of a welding seat in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a clamp in an embodiment of the present invention; Figure 5 It is a schematic diagram of the structure of the positioning sleeve on the fixture in an embodiment of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the positioning sleeve on the clamp in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] An example of an embodiment of the angle steel welding device of the present invention is Figures 1 to 6As shown in the figure: It includes a welding base 1 and a welding robot. The welding robot is arranged on one side of the welding base 1. A positioning table 12 is movably arranged on the welding base 1. A center table 14 is arranged at the center of the positioning table 12. Slide ways 13 are connected between the center table 14 and the four corners of the positioning table 12. A connecting boss 131 for cooperating with the connecting holes on the angle steel base 21 and a driving mechanism for driving the connecting boss 131 to slide along the slide way 13 are arranged in the slide way 13. A support seat 3 that slides along the edge of the welding base 1 is also arranged on the side wall of the welding base 1. A support edge 31 for supporting the angle steel is slidably arranged on the support seat 3. The beneficial effects of such a setting are as follows: With such a setting, the center table 14 serves as a positioning reference, and together with the slide ways 13 at the four corners of the positioning table 12, a positioning framework is constructed. The driving mechanism can flexibly adjust the position of the connecting boss 131 according to the sizes and connecting hole positions of different angle steel bases 21 by controlling the sliding of the connecting boss 131 in the slide way 13. When the connecting boss 131 accurately cooperates with the connecting holes on the angle steel base 21, the preliminary positioning of the angle steel base 21 is achieved, restricting its movement in the horizontal direction. The support seat 3 that slides along the edge of the welding base 1 can adjust its position according to the length of the angle steel and the welding requirements, and the support edge 31 slidably arranged on the support seat 3 can closely fit with other structures of the angle steel, providing reliable support to prevent the angle steel from shaking or deforming during the welding process. During the actual welding process, first, the connecting boss 131 is 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 achieve the 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 method of step-by-step positioning and automated welding ensures the efficiency and precision of the welding process. In terms of accuracy, through the cooperation between the connecting boss 131 and the connecting holes 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 automated welding robot can operate continuously, reducing the time cost and labor intensity of manual welding and greatly improving the production efficiency. In terms of cost control, precise positioning and efficient welding reduce rework and material waste caused by welding quality problems, reducing the production cost. In addition, it can adapt to the welding requirements of different specifications of angle steel, has strong versatility, and improves the utilization rate of the equipment.

[0024] As a further setting of this embodiment, a turnover frame 11 is provided on the welding seat 1, the positioning table 12 is arranged on the turnover frame 11, a rotating motor is arranged on the turnover frame 11, and the output end of the rotating motor is connected to the bottom surface of the positioning table 12. The beneficial effect of such a setting is as follows: With this setting, the rotating motor directly drives the positioning table 12 through the output end, enabling flexible rotation at multiple angles and in multiple directions. During actual processing, when welding the seams on different sides of the angle steel, the operator does not need to manually carry the angle steel. Only by controlling the rotating motor can the welding part be quickly adjusted to the optimal welding position, avoiding positioning deviation and time loss caused by manual handling. This design is linked with the connecting boss 131 and the support seat 3, enabling the angle steel to quickly change its posture to cooperate with the welding robot after positioning, especially suitable for multi-sided welding scenarios of angle steel parts with complex structures, greatly shortening the process connection time, effectively improving the overall processing efficiency, reducing the labor intensity of workers, and ensuring welding accuracy at the same time.

[0025] As a further setting of this embodiment, connecting arms are respectively arranged on both sides of the turnover frame 11. The turnover frame 11 is rotationally connected to the welding seat 1 through the connecting arms. A turnover motor for driving the turnover frame 11 to rotate is also arranged on the welding seat 1, and the output end of the turnover motor is in transmission connection with the connecting arms. The beneficial effect of such a setting is as follows: With this setting, the turnover frame 11 is rotationally connected to the welding seat 1 through the connecting arms and is driven by the turnover motor, enabling the welding device to 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 at multiple angles, presenting the angle steel on the positioning table 12 at the optimal angle below the welding robot. For example, when welding the multi-sided seams of the angle steel, there is no need for manual re-clamping, and the turnover frame 11 can drive the angle steel to turn to a suitable position, and the welding robot can directly perform continuous welding on the welds of different surfaces, avoiding repeated positioning errors. This automated 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 12 to improve the efficiency and accuracy of angle steel welding from multiple dimensions.

[0026] As a further setting of this embodiment, an adjustment groove is provided on the support base 3, the support edge 31 is slidably arranged in the adjustment groove, a support arm 32 is swingably arranged on the support base 3, a support groove is provided on the outer wall of the support edge 31, and a number of limiting ribs are arranged at intervals on the inner wall of the support groove. A limiting tooth is provided on the end face of the support arm 32. The beneficial effect of such a setting is as follows: With such a setting, the adjustment groove on the support base 3 and the slidably arranged support edge 31 constitute a support foundation that can be flexibly adjusted. When facing angle steel parts with different widths and thicknesses, the operator can easily push the support edge 31 to slide in the adjustment groove to quickly adjust the support spacing. The cooperation between the support arm 32 and the support edge 31 further strengthens the positioning effect. The swingably arranged support arm 32 can fit against the inner wall of the support groove, and the limiting teeth thereon can accurately engage into the gaps between the limiting ribs to form a stable locking structure. This design not only ensures that the support edge 31 will not be displaced due to vibration during welding, but also can be quickly unlocked by lifting the support arm 32 when adjustment is needed, and firmly locked again after repositioning. Through this flexible and reliable positioning method, the device can efficiently adapt to the welding requirements of various specifications of angle steel, greatly improving the versatility and processing stability of the equipment.

[0027] As a further setting of this embodiment, a clamping member is further provided on the positioning table 12, and two mutually intersecting clamping grooves are provided on the clamping member. The beneficial effect of such a setting is as follows: With such a setting, the clamping member on the positioning table 12 can accurately fit the top contour of the mutually staggered angle steel parts by virtue of the two mutually intersecting clamping grooves. After the angle steel part is in the predetermined position, the clamping member can be directly pressed down so that the edge of the angle steel is embedded in the clamping groove, and through the close contact between the groove wall and the surface of the angle steel, multi-directional limiting constraints are formed. This design can not only quickly fix the relative positions of adjacent angle steels, avoid displacement caused by thermal deformation or external force during welding, but also effectively disperse the welding stress. In the welding of complex angle steel structures, the clamping member can assist in constructing a stable three-dimensional framework, ensuring that the angle steel parts with multi-layer and multi-directional connections always maintain accurate alignment during welding, and significantly improving the overall welding quality and structural strength.

[0028] As a further setting of this embodiment, the welding robot includes a base 21, a six-axis driving arm 22 and a fixture 23. The base 21 is arranged on one side of the welding seat 1. One end of the six-axis driving arm 22 is connected to the base 21, and the other end is provided with a mating port. A positioning spring piece 4 is arranged on the side wall of the fixture 23. A positioning sleeve 5 is slidably arranged on the outer wall of the fixture 23. A positioning convex column 51 extending towards the positioning spring piece 4 is arranged on the positioning sleeve 5 for keeping the positioning spring piece 4 in contact with the inner wall of the mating port. The insertion end of the positioning convex column 51 is arranged in an inclined plane. The beneficial effect of such a setting is as follows: With such a setting, when the fixture 23 is docked with the mating port of the six-axis driving arm 22, the operator inserts the fixture 23 into the mating port. At this time, the positioning spring piece 4 first makes initial contact with the inner wall of the mating port. Subsequently, the positioning sleeve 5 is slid, and the positioning convex column 51 squeezes the positioning spring piece 4 by virtue of the inclined plane design, causing it to undergo elastic deformation and closely fit the inner wall of the mating port, forming multi-directional pressure constraints to ensure that the fixture 23 is firmly fixed and not easily loosened even during high-speed welding and complex movements. During disassembly, only need to slide the positioning sleeve 5 in the reverse direction to relieve the extrusion of the positioning convex column 51 on the positioning spring piece 4, and the positioning spring piece 4 returns to its original state, then the fixture 23 can be easily pulled out. This structure greatly reduces the time cost of replacing the fixture 23, adapts to the welding requirements of different specifications of angle steels, and at the same time ensures welding accuracy and stability, significantly improving production efficiency and equipment flexibility.

[0029] As a further configuration of this embodiment, the positioning spring piece 4 includes a connecting portion 41 connected in sequence, a contact portion 42 for maintaining contact with the inner wall of the mating port when the positioning boss 51 is inserted, and a bending portion 43 for retracting the positioning spring piece 4 when the clamp 23 is out of the mating slot, the connecting portion 41 is connected obliquely to the outer wall of the clamp 23, the connecting portion 41 is elastically arranged, and an embedding groove 52 is arranged on the outer wall of the positioning boss 51 corresponding to the bending portion 43 of the positioning spring piece 4. The beneficial effect of such a configuration is that the three-section structure of the connecting portion 41, the contact portion 42, and the bending portion 43 of the positioning spring piece 4 forms a dynamically adaptive mechanical conduction system. The connecting portion 41 is elastically connected to the outer wall of the clamp 23 at an inclined angle, which not only provides basic support for the positioning spring piece 4, but also reserves reset potential energy through elastic deformation. When the positioning boss 51 is inserted, the contact portion 42 is pushed outward by the thrust of the inclined surface of the positioning boss 51. Its arc surface design ensures a large-area fit with the inner wall of the mating opening, generating uniform friction, effectively resisting the axial movement and circumferential torsion of the clamp 23 during the welding process, and avoiding accidental disengagement due to vibration. In the disassembly scenario of the clamp 23, when the positioning sleeve 5 is slid in the reverse direction and the positioning boss 51 is disengaged from the embedding groove 52, the bent portion 43 first contacts the edge of the mating opening, and its preset bending angle forces the positioning spring 4 to converge toward the center. This design converts the manually operated "sliding positioning sleeve 5" action into the automatic resetting power of the positioning spring 4, and the clamp 23 can be quickly disengaged without additional force, significantly improving the disassembly efficiency. In addition, the cooperation between the embedding groove 52 and the bending portion 43 forms a mechanical locking structure: when the positioning boss 51 is fully inserted, the bending portion 43 is inserted into the embedding groove 52, and the positioning sleeve 5 is prevented from accidentally sliding through geometric limitation, thereby ensuring the connection stiffness between the clamp 23 and the drive arm during welding, so that the structure can not only withstand the dynamic load during high-speed welding, but also maintain operational convenience in multi-frequency changeover scenarios. It is particularly suitable for flexible production lines for angle steel welding of multiple varieties and small batches, and provides key technical support for the continuity and stability of automated welding.

[0030] As a further configuration of this embodiment, the positioning sleeve 5 is further provided with a push groove, in which a push button 53 is slidably provided, and an unlocking slider 54 is slidably provided between the push button 53 and the embedding groove for resisting the bent portion 43 of the positioning spring sheet 4 so that the bent portion 43 is separated from the embedding groove 52, and a reset spring for resetting the unlocking slider 54 is resisted between the unlocking slider 54 and the inner wall of the push groove. The beneficial effect of such configuration is that the additional configuration of the push groove and the push button 53 provides a more direct and efficient operation mode for separating the positioning sleeve 5 from the positioning spring sheet 4. When the clamp 23 needs to be disassembled, the operator only needs to push the push button 53, and the unlocking slider moves accurately toward the embedding groove 52 along the guide of the push groove. After the unlocking slider contacts the bent portion 43 of the positioning spring sheet 4, a lateral thrust is applied by using the inclined surface principle, forcing the bent portion 43 to overcome the elastic resistance and separate from the embedding groove 52, and simultaneously releasing the extrusion constraint of the positioning convex column 51 on the positioning spring sheet 4. This design simplifies the traditional operation of sliding the positioning sleeve 5 multiple times into a single push button 53 action, effectively avoiding the difficulty of disassembly caused by the positioning sleeve 5 jamming, and is particularly suitable for high-intensity and high-frequency replacement of the clamp 23. At the same time, the linear sliding design of the push button 53 has a simple structure and strong reliability, which not only reduces the operating threshold, but also greatly shortens the replacement time of the clamp 23, significantly improving the overall use efficiency of the welding equipment.

[0031] As a further configuration of this embodiment, a plurality of positioning teeth are provided on the outer wall of the contact portion 42 of the positioning spring piece 4, and the contact surface between the matching opening and the positioning spring piece 4 is configured as a tooth surface. The beneficial effect of such configuration is that the positioning teeth of the contact portion 42 of the positioning spring piece 4 and the tooth surface of the matching opening are interlocked with each other, increasing the contact area and friction between the two, forming a mechanical bite effect, and limiting relative displacement like the meshing of gears. During welding operations, this tight-fitting structure can effectively resist external forces caused by welding thermal deformation and mechanical vibration, prevent the clamp 23 from loosening, and ensure welding accuracy.

[0032] The above example is only one preferred specific example of the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. An angle steel welding device, comprising a welding base and a welding robot, the welding robot is arranged on one side of the welding base, and is characterized in that: A positioning platform is movably provided on the welding seat, a center platform is provided at the center of the positioning platform, a slideway is connected between the center platform and the four corners of the positioning platform, the slideway is provided with a connecting boss for cooperating with the connecting hole on the angle steel base and a driving mechanism for driving the connecting boss to slide along the slideway, a support seat sliding along the edge of the welding seat is also provided on the side wall of the welding seat, and a support edge slidably provided on the support seat for supporting the angle steel.

2. The angle steel welding device according to claim 1, characterized in that: The welding seat is provided with a turning frame, the positioning platform is provided on the turning frame, the turning frame is provided with a rotating motor, and the output end of the rotating motor is connected to the bottom surface of the positioning platform.

3. The angle steel welding device according to claim 2, characterized in that: Connecting arms are respectively arranged on both sides of the flip frame, and the flip frame is rotatably connected to the welding seat through the connecting arms. A flip motor for driving the flip frame to rotate is also arranged on the welding seat, and the output end of the flip motor is transmission-connected to the connecting arms.

4. The angle steel welding device according to claim 1, characterized in that: The support seat is provided with an adjustment groove, the support edge is slidably arranged in the adjustment groove, the support seat is swingably provided with a support arm, the support groove is provided on the outer wall of the support edge, a plurality of limiting ribs are arranged at intervals on the inner wall of the support groove, and limiting teeth are provided on the end face of the support arm.

5. The angle steel welding device according to claim 1, characterized in that: The positioning platform is also provided with a clamping piece, and the clamping piece is provided with two mutually intersecting clamping grooves.

6. The angle steel welding device according to claim 1, characterized in that: The welding robot includes a base, a six-axis driving arm and a clamp, wherein 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 piece is provided on the side wall of the clamp, a positioning sleeve is slidably provided on the outer wall of the clamp, a positioning boss is extended from the positioning sleeve toward the positioning spring piece to keep the positioning spring piece in contact with the inner wall of the matching opening, and the insertion end of the positioning boss is arranged in an inclined surface.

7. The angle steel welding device according to claim 6, characterized in that: The positioning spring sheet includes a connecting portion connected in sequence, a contact portion for maintaining contact with the inner wall of the mating opening when the positioning boss is inserted, and a bending portion for retracting the positioning spring sheet when the clamp is disengaged from the mating groove. The connecting portion is obliquely connected to the outer wall of the clamp, the connecting portion is elastically arranged, and an embedding groove is arranged on the outer wall of the positioning boss corresponding to the bending portion of the positioning spring sheet.

8. The angle steel welding device according to claim 7, characterized in that: The positioning sleeve is also provided with a push groove, in which a push button is slidably provided, and an unlocking slider is slidably provided between the push button and the embedding groove for resisting the bent part of the positioning spring piece to make the bent part disengage from the embedding groove, and a reset spring for resetting the unlocking slider is resisted between the unlocking slider and the inner wall of the push groove.

9. The angle steel welding device according to claim 7, characterized in that: A plurality of positioning teeth are arranged on the outer wall of the contact portion of the positioning spring piece, and the contact surface between the matching opening and the positioning spring piece is arranged as a tooth surface.

Images