Automatic welding machine for H-shaped steel

Abstract

The utility model belongs to the field of welding machine, concretely relates to an automatic welding machine for H-shaped steel, including conveying roller frame, the upper end middle part of conveying roller frame is fixedly connected with support, the vertical portion of support is fixedly installed with two hydraulic cylinders no. 2, the telescopic axle of each hydraulic cylinder no. 2 is all through support and is connected with support slidingly, the telescopic axle end of hydraulic cylinder no. 2 is fixedly connected with connecting plate. The utility model is driven by hollow shell of hydraulic cylinder through setting up in support, hollow shell is set up and can stretch out and retract slide pin, and the end of slide pin has the pressing plate, like this, using hollow shell and pressing plate can carry out the clamping fixed of the concave profile of H-shaped rod, promotes its welding process position's accuracy, simultaneously, using the thread movement of the adjusting lever of horizontal direction and hollow shell, then through the cooperation of the round ball of adjusting lever end and the bevel seat of slide pin end, can control the interval of pressing plate, and then satisfy the clamping fixed of different models H-shaped steel, and the suitability is better.

Description

Technical Field

[0001] This utility model relates to the field of welding machines, and in particular to an automatic welding machine for H-beams. Background Technology

[0002] H-beams are widely used steel profiles in modern steel structure buildings, named for their cross-sectional shape resembling the letter "H". The two outer edges of an H-beam are straight, without any bevel, making welding and splicing easier than with I-beams.

[0003] A search revealed a utility model patent with patent authorization announcement number CN116275667B, which discloses an automatic H-beam welding machine. This invention relates to the field of H-beam welding production technology and includes a welding conveyor and a gantry frame for welding and conveying H-beams. A lower pressure plate is slidably mounted on the gantry frame via a hydraulic rod, and a transmission mechanism is installed at the bottom of the lower pressure plate. This invention, through the installation of a transmission mechanism and a cleaning mechanism, enables the hydraulic rod to drive the lower pressure plate downwards, causing the lower pressure plate to move downwards and press against the top of the H-beam through the connection of an elastic connecting component.

[0004] When using existing automatic H-beam welding machines, guide mechanisms are set on both sides of the H-beam conveying path to position the H-beams during transport. However, the existing guide mechanisms are relatively fixed and have certain limitations in applicability to different types of H-beams. Utility Model Content

[0005] This utility model provides an automatic welding machine for H-beams, which solves the technical problem of poor applicability of the guiding mechanism in existing automatic welding machines for H-beams.

[0006] To solve the above-mentioned technical problems, this utility model provides an automatic welding machine for H-beams, including a conveyor roller frame. A bracket is fixedly connected to the upper middle part of the conveyor roller frame. Two hydraulic cylinders are fixedly installed on the vertical part of the bracket. The telescopic shaft of each hydraulic cylinder passes through the bracket and is slidably connected to the bracket. A connecting plate is fixedly connected to the end of the telescopic shaft of the hydraulic cylinder. A connecting rod is fixedly connected to the connecting plate. A hollow shell is fixedly connected to the end of the connecting rod. Sliding pins are slidably connected to the upper and lower ends of the hollow shell, and the sliding pins are set through the hollow shell. A pressure plate is fixedly connected to one end of the sliding pin, and an inclined block is fixedly connected to the other end of the sliding pin. An adjusting rod is threadedly connected to the side wall of the hollow shell, and the adjusting rod is set through the hollow shell. A ball is fixedly connected to one end of the adjusting rod, and the ball abuts against the inclined surface of the inclined block. A knob is fixedly connected to the other end of the adjusting rod. A fixing plate is fixedly connected to the front of the bracket, and a welding machine is installed on the fixing plate.

[0007] Preferably, a hydraulic cylinder is fixedly installed on the top of the support. The telescopic shaft of the hydraulic cylinder passes through the support and is slidably connected to it. A pressure roller is provided at the end of the telescopic shaft. By driving the pressure roller with the hydraulic cylinder, the vertical direction of the H-shaped rod conveyed on the conveyor roller frame can be limited and guided.

[0008] Preferably, a spring is sleeved on the outer side of the sliding pin, one end of the spring is fixedly connected to the inclined block, and the other end of the spring is fixedly connected to the inner wall of the hollow shell. The reaction force of the spring can act on the inclined block.

[0009] Preferably, a guide rod is fixedly connected to the inner wall of the hollow shell, and the guide rod is slidably connected to the inclined block. The guide rod provides guidance for the extension and retraction adjustment of the inclined block.

[0010] Preferably, the knob has a sliding bracket inside, which passes through the knob. A locking disc is fixedly connected to the end of the bracket, and the locking disc abuts against the hollow shell. A locking pin is fixedly connected to the locking disc, and the locking pin engages with the outer wall of the hollow shell. A ring of locking grooves is formed on the outer wall of the hollow shell for engaging the locking pin, thus providing anti-loosening protection for the adjusting rod.

[0011] Preferably, a second spring is fitted on the outer side of the pull bracket. One end of the second spring is fixedly connected to the locking disc, and the other end is fixedly connected to the knob. The second spring allows the elastic force to be applied to the locking disc, ensuring that the locking disc and its locking pin remain in contact with the outer wall of the hollow shell.

[0012] Preferably, a protective sleeve, which is a corrugated pipe, is fixedly connected between the locking disc and the knob. The protective sleeve provides protection for the second spring.

[0013] Compared with related technologies, the automatic welding machine for H-beams provided by this utility model has the following advantages:

[0014] 1. This utility model features a hollow shell driven by a hydraulic cylinder mounted on a support frame. The hollow shell has a retractable sliding pin with a pressure plate at its end. This allows the hollow shell and pressure plate to clamp and fix the concave contour of the H-beam, improving the accuracy of its position during welding. Simultaneously, the threaded movement of the hollow shell and the lateral adjusting rod, along with the engagement of the ball at the end of the adjusting rod with the inclined seat at the end of the sliding pin, control the spacing of the pressure plates. This allows for the clamping and fixing of different types of H-beams, demonstrating good applicability.

[0015] 2. This utility model provides a U-shaped pull bracket on the outside of the adjusting rod, with a locking disc elastically supported by a spring on the pull bracket. The locking disc has a locking pin that engages with the outer wall of the hollow shell. This locks and fixes the adjusting rod after adjustment, thereby improving the stability of the pressure plate after adjustment. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 A schematic diagram of a partial structure;

[0018] Figure 3 This utility model Figure 1 A front sectional view;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0020] Numbered in the diagram: 1. Conveyor roller frame; 2. Support frame; 3. Hydraulic cylinder one; 4. Pressure roller; 5. Hydraulic cylinder two; 6. Connecting plate; 7. Connecting rod; 8. Hollow shell; 9. Sliding pin; 10. Pressure plate; 11. Inclined block; 12. Spring one; 13. Guide rod; 14. Adjusting rod; 15. Ball; 16. Knob; 17. Pull frame; 18. Locking disc; 19. Locking pin; 20. Spring two; 21. Protective sleeve; 22. Fixed seat; 23. Welding machine. Detailed Implementation

[0021] Please see Figures 1-3 An automatic welding machine for H-beams includes a conveyor roller frame 1, a support 2 with a fixed plate 22 fixedly connected to its front side, a welding machine 23 mounted on the fixed plate 22, a support 2 fixedly connected to the upper middle part of the conveyor roller frame 1, a hydraulic cylinder 3 fixedly mounted on the top of the support 2, the telescopic shaft of the hydraulic cylinder 3 passing through the support 2 and slidably connected to the support 2, and a pressure roller 4 mounted at the end of the telescopic shaft. The pressure roller 4 is driven by the hydraulic cylinder 3 to limit and guide the vertical direction of the H-beams conveyed on the conveyor roller frame 1. Two hydraulic cylinders 5 are fixedly mounted on the vertical part of the support 2, the telescopic shaft of each hydraulic cylinder 5 passing through the support 2 and slidably connected to the support 2, a connecting plate 6 fixedly connected to the end of the telescopic shaft of the hydraulic cylinder 5, a connecting rod 7 fixedly connected to the connecting plate 6, and a hollow shell 8 fixedly connected to the end of the connecting rod 7.

[0022] Please see Figures 3-4The hollow shell 8 has sliding pins 9 slidably connected to both its upper and lower ends, and the sliding pins 9 penetrate the hollow shell 8. One end of the sliding pin 9 is fixedly connected to a pressure plate 10, and the other end is fixedly connected to a ramp block 11. A spring 12 is sleeved on the outside of the sliding pin 9. One end of the spring 12 is fixedly connected to the ramp block 11, and the other end is fixedly connected to the inner wall of the hollow shell 8. The reaction force of the spring 12 can act on the ramp block 11. A guide rod 13 is fixedly connected to the inner wall of the hollow shell 8, and the guide rod 13 is slidably connected to the ramp block 11. The guide rod 13 guides the extension and retraction adjustment of the ramp block 11.

[0023] Please see Figure 4 An adjusting rod 14 is threadedly connected to the side wall of the hollow shell 8, and the adjusting rod 14 penetrates the hollow shell 8. One end of the adjusting rod 14 is fixedly connected to a ball 15, which abuts against the inclined surface of the inclined block 11. The other end of the adjusting rod 14 is fixedly connected to a knob 16. A pull bracket 17 is slidably connected inside the knob 16, and the pull bracket 17 penetrates the knob 16. A locking disc 18 is fixedly connected to the end of the pull bracket 17, which abuts against the hollow shell 8. A locking pin 19 is fixedly connected to the locking disc 18, and the locking pin 19 engages with the outer wall of the hollow shell 8. A ring of locking grooves is formed on the outer wall of the hollow shell 8 for engaging the locking pin 19, thus providing anti-loosening protection for the adjusting rod 14. A second spring 20 is sleeved on the outside of the pull bracket 17. One end of the second spring 20 is fixedly connected to the locking disc 18, and the other end of the second spring 20 is fixedly connected to the knob 16. The spring 20 allows the elastic force to be applied to the locking disc 18, ensuring that the locking disc 18 and its locking pin 19 remain in contact with the outer wall of the hollow shell 8. A protective sleeve 21, which is a corrugated tube, is fixedly connected between the locking disc 18 and the knob 16. The protective sleeve 21 provides protection for the spring 20.

[0024] Working principle: In use, the vertical and horizontal steel plates of the H-beam are first stacked in corresponding positions and placed on the conveyor roller frame 1. Then, hydraulic cylinder 3 drives the pressure roller 4 downward to restrict the vertical direction of the H-beam. At the same time, hydraulic cylinder 5 drives the hollow shell 8 to move through the universal connecting plate 6 and connecting rod 7, thereby placing the hollow shell 8 and the pressure plate 10 on the concave surface of the H-beam. This can limit the lateral movement of the H-beam, thereby improving the accuracy of its position during the welding process. Then, the connection between the vertical and horizontal steel plates of the H-beam is welded by the welding machine. In addition, by rotating the adjusting rod 14 through the knob 16, the adjusting rod 14 moves laterally through the threaded movement between it and the hollow shell 8. Then, the ball 15 at its end cooperates with the inclined block 11 to adjust the spacing between the pressure plates 10, thus satisfying the clamping and fixing of different types of H-beams, with good applicability.

Claims

1. An automatic welding machine for H-beams, comprising a conveyor roller frame (1), characterized in that, A bracket (2) is fixedly connected to the upper middle part of the conveyor roller frame (1). Two hydraulic cylinders (5) are fixedly installed on the vertical part of the bracket (2). The telescopic shaft of each hydraulic cylinder (5) passes through the bracket (2) and is slidably connected to the bracket (2). A connecting plate (6) is fixedly connected to the end of the telescopic shaft of the hydraulic cylinder (5). A connecting rod (7) is fixedly connected to the connecting plate (6). A hollow shell (8) is fixedly connected to the end of the connecting rod (7). A sliding pin (9) is slidably connected to both the upper and lower ends of the hollow shell (8). The sliding pin (9) is set to pass through the hollow shell (8). One end of the pin (9) is fixedly connected to a pressure plate (10), and the other end of the sliding pin (9) is fixedly connected to a slope block (11). The side wall of the hollow shell (8) is connected to an adjusting rod (14) by a thread, and the adjusting rod (14) is set through the hollow shell (8). One end of the adjusting rod (14) is fixedly connected to a ball (15), and the ball (15) abuts against the slope of the slope block (11). The other end of the adjusting rod (14) is fixedly connected to a knob (16). The front of the bracket (2) is fixedly connected to a fixing plate (22), and a welding machine (23) is set on the fixing plate (22).

2. The automatic welding machine for H-beams according to claim 1, characterized in that, A hydraulic cylinder (3) is fixedly installed on the top of the bracket (2). The telescopic shaft of the hydraulic cylinder (3) passes through the bracket (2) and is slidably connected to the bracket (2). A pressure roller (4) is provided at the end of the telescopic shaft.

3. The automatic welding machine for H-beams according to claim 1, characterized in that, A spring (12) is sleeved on the outside of the pin body of the sliding pin (9). One end of the spring (12) is fixedly connected to the inclined block (11), and the other end of the spring (12) is fixedly connected to the inner wall of the hollow shell (8).

4. The automatic welding machine for H-beams according to claim 1, characterized in that, The hollow shell (8) is fixedly connected to the inner wall of a guide rod (13), and the guide rod (13) is slidably connected to the inclined block (11).

5. An automatic welding machine for H-beams according to claim 1, characterized in that, The knob (16) is internally slidably connected to a pull bracket (17), and the pull bracket (17) is set through the knob (16). The end of the pull bracket (17) is fixedly connected to a locking disc (18). The locking disc (18) abuts against the hollow shell (8). A locking pin (19) is fixedly connected to the locking disc (18). The locking pin (19) is engaged with the outer wall of the hollow shell (8).

6. An automatic welding machine for H-beams according to claim 5, characterized in that, The outer side of the pull frame (17) is fitted with a second spring (20), one end of the second spring (20) is fixedly connected to the lock disc (18), and the other end of the second spring (20) is fixedly connected to the knob (16).

7. An automatic welding machine for H-beams according to claim 5, characterized in that, The lock disc (18) and the knob (16) are both fixedly connected by a protective sleeve (21), and the protective sleeve (21) is a corrugated pipe.

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