A bulb flat steel welding machine with an adjustable fillet welding positioning frame

Abstract

A ball flat steel welding machine with an adjustable corner welding positioning frame, the invention relates to the field of welding technology; the No. 1 auxiliary roller is equidistantly distributed and rotated by shafts and bearings and is arranged in the transverse plate groove of the positioning frame, and the No. 1 auxiliary roller is movably abutted and arranged on the upper part of the ship plate, and the reinforcing rods are respectively fixed on the front and rear sides of the upper part of the transverse plate of the positioning frame, and the upper end of the reinforcing rod is tilted to the right and fixedly connected to the vertical plate of the positioning frame, and a cross bar is fixedly arranged between the two reinforcing rods, and the No. 2 auxiliary roller is respectively rotated by shafts and bearings and is arranged on the front and rear sides of the two connecting frames, and the insertion rod is respectively fixed on the two connecting frames, and one end of the insertion rod is inserted into a slot opened on the other connecting frame. When the ball flat steel and the ship plate are corner welded, the positioning frame can be driven to move, and the welding section of the ball flat steel can be vertically positioned at all times to avoid deviation of the welding angle at a certain place, and the positioning frame can also be adapted and adjusted according to the specifications of the ball flat steel.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to a bulb flat steel welding machine with an adjustable fillet welding positioning frame. Background Art

[0002] Bulb flat steel is a special type of steel, consisting of a flat web and a spherical ball head. It is an asymmetric steel and the most important type of ship steel. It is mainly used as a reinforcement of ship plates. When the bulb flat steel is angle-welded to the ship plates, in order to ensure the vertical state of the bulb flat steel and the ship plates, it is often necessary to use it with a positioning frame. However, the existing bulb flat steel has a variety of specifications and sizes, and the existing positioning frame is not convenient to adapt to it. Moreover, the positioning position of the positioning frame is mostly fixed, and it is not convenient to move synchronously with the welding machine for positioning. If a section of bulb flat steel is welded at a distance from the positioning frame, the welding angle is likely to deviate. Therefore, there is an urgent need for a bulb flat steel welding machine with an adjustable angle welding positioning frame. Summary of the Invention

[0003] The purpose of the present invention is to provide a bulb flat steel welding machine with an adjustable fillet welding positioning frame that is rationally designed and easy to use in order to solve the above problems in view of the defects and shortcomings of the prior art.

[0004] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: it comprises a positioning frame, a mobile welding vehicle and a connecting frame, the bulb flat steel is arranged on the upper part of the shipboard, the positioning frame is arranged above the shipboard and is located on the left side of the bulb flat steel, the positioning frame is arranged in an "L"-shaped structure, the mobile welding vehicle is movably arranged on the upper part of the shipboard and is located on the right side of the bulb flat steel, and the connecting frame is movably inserted on both the positioning frame and the mobile welding vehicle;

[0005] It also contains:

[0006] Auxiliary roller No. 1, there are several auxiliary rollers, all of which are equidistantly distributed and screwed together in the transverse plate groove of the positioning frame through shafts and bearings, and the auxiliary roller No. 1 is movably arranged in contact with the upper part of the shipboard, and the positioning frame is provided with a contact clamping mechanism;

[0007] There are two reinforcing rods, which are fixedly arranged on the front and rear sides of the upper part of the horizontal plate of the positioning frame. The upper end of the reinforcing rod is tilted to the right and fixedly connected to the vertical plate of the positioning frame. A cross bar is fixedly arranged between the two reinforcing rods. The cross bar is provided with an adjustment mechanism, and the adjustment mechanism is coordinated with the interference clamping mechanism.

[0008] Second auxiliary rollers, there are several second auxiliary rollers, which are respectively arranged on the front and rear sides of the two connecting frames through shafts and bearings, and the second auxiliary rollers are arranged to flexibly contact with the bulb flat steel;

[0009] There are two insertion rods, which are fixed on two connecting frames respectively. One end of the insertion rod is inserted into a slot opened on the other connecting frame, and a limiting mechanism is provided on the insertion rod.

[0010] Through the above technical solution, the interference clamping mechanism can be adjusted through the adjustment mechanism, so that the interference clamping mechanism can be adapted according to the specifications of the ball flat steel, and the ball flat steel can be vertically clamped and positioned on the ship plate, and the limiting mechanism can also limit the connection between the two connecting frames. At the same time, by using the cooperation of the No. 1 auxiliary roller and the No. 2 auxiliary roller, when the mobile welding vehicle is performing corner welding on the ball flat steel and the ship plate, the positioning frame and the connecting frame can move synchronously with the mobile welding vehicle, and the welding section of the ball flat steel can be vertically positioned at all times, so as to avoid an angular deviation between a section of the ball flat steel far away from the positioning frame and the ship plate during the welding process.

[0011] Preferably, the interference clamping mechanism comprises:

[0012] The clamping frame is movably arranged in the groove of the vertical plate of the positioning frame, and a connecting plate is fixedly arranged on the clamping frame. Two No. 3 auxiliary rollers are screwed together on both sides of the connecting plate of the clamping frame through shafts and bearings, and the outer ring wall of the No. 3 auxiliary roller is movably abutted against the bulb flat steel;

[0013] Sliders, there are several slides, which are slidably arranged in the upper and lower slide grooves of the front and rear outer walls of the clamping frame respectively, and the inner side walls of the upper and lower slide grooves are provided with interpenetrating moving grooves, and the moving grooves are provided with positioning mechanisms;

[0014] There are several movable plates, each of which is screwed onto a plurality of sliders via a shaft and a bearing. The outer end edge of the outer side wall of the movable plate is screwed onto the clamping frame via a shaft and a bearing.

[0015] There are two guide rods, which are fixed on the front and rear sides of the lower edge of the outer side wall of the clamping frame. One end of the guide rod is movably inserted in the guide sleeve. The guide sleeve is fixed on the horizontal plate of the positioning frame, and the guide sleeve is located above the No. 1 auxiliary roller.

[0016] Through the above technical solution, through the guiding effect of the guide rod, the clamping frame can drive the No. 3 auxiliary roller to move and contact the bulb flat steel, so that when the mobile welding car is performing fillet welding, the No. 3 auxiliary roller can also rotate accordingly, and cooperate with the No. 1 auxiliary roller and the No. 2 auxiliary roller, so that the positioning frame and the mobile welding car move synchronously for positioning.

[0017] Preferably, the positioning mechanism comprises:

[0018] There are two movable plates, each fixed on the two sliders, and each movable plate is movably arranged in the movable groove;

[0019] A strip plate, wherein the strip plate is movably arranged in the movable groove, and a rubber pad is fixedly arranged on one side wall of the strip plate, and the rubber pad is arranged to abut against the movable plate;

[0020] A No. 1 threaded rod is screwed onto the clamping frame through a thread, and an inner end of the No. 1 threaded rod is screwed onto the strip plate through a bearing.

[0021] Through the above technical solution, the strip plate can be driven to move by rotating the No. 1 threaded rod, and the rubber pad can collide with the moving plate to generate huge friction, thereby realizing the positioning of the moving plate and the slider, and avoiding the loosening of the clamping positioning of the ball flat steel during the corner welding process.

[0022] Preferably, the adjustment mechanism comprises:

[0023] A rotating rod, the rotating rod is passed through the bearing in the middle of the cross bar, and an adjustment plate is fixedly provided on the inner end of the rotating rod;

[0024] There are two adjustment blocks, which are fixed on the adjacent side walls of the adjustment plate and the connecting plate respectively, and the height of the adjustment block on the connecting plate is lower than the height of the axis of the rotating rod. An adjustment ball is movably arranged in the spherical groove opened on the adjustment block, and the two adjustment balls are fixedly connected by an adjustment rod.

[0025] Through the above technical solution, the rotating rod can drive the adjustment plate to rotate, and is affected by the axial offset distance between the two adjusting balls. The adjusting rod can drive the resistance clamping mechanism to move according to the different thickness specifications of the ball flat steel, thereby achieving adaptive positioning of the thickness specifications of the ball flat steel.

[0026] Preferably, a plurality of reinforcing ribs are fixedly provided with equal fillet distribution on the outer ring wall of the rotating rod, and one side wall of the reinforcing rib is fixedly connected to the adjustment plate. The reinforcing rib can increase the strength of the connection structure between the adjustment plate and the rotating rod.

[0027] Preferably, the limiting mechanism comprises:

[0028] A limit rod, which is movably provided on the connecting frame and the insertion rod, wherein an extrusion block is fixedly provided on the inner end of the limit rod, and a pulling handle is fixedly provided on the outer end of the limit rod at a position outside the connecting frame;

[0029] The rubber sleeve is sleeved on the limiting rod and the extrusion block, and the rubber sleeve is arranged to abut against the inner side wall of the slot, and the end of the insertion rod is fixedly connected to the rubber sleeve.

[0030] Through the above technical solution, when the insertion rod is inserted into the slot, the movement of the limiting rod can drive the extrusion block to move into the rubber sleeve, and squeeze the rubber sleeve to contact the slot to generate huge friction force, so as to achieve the limit connection of the two connecting frames through the insertion rod.

[0031] Preferably, the side edge of the extrusion block is provided with an extrusion chamfer to facilitate moving the extrusion block into the rubber sleeve.

[0032] Preferably, a flap is provided on the outer side wall of the transverse plate of the positioning frame through a hinge, and an anti-slip pad is fixedly provided on the outer side wall of the flap, and the anti-slip pad is arranged to cooperate with the ship board, and triangular grooves are provided on the front and rear sides of the outer side wall of the transverse plate of the positioning frame, and a spring is fixedly provided in the triangular groove, and the other end of the spring is fixedly connected to the flap.

[0033] Through the above technical solution, when the positioning frame needs to be fixed on the ship board without moving with the mobile welding vehicle, the rebound thrust applied to the flap by the spring can cause the flap to flip over and the anti-slip pad to come into contact with the ship board to generate friction, so as to avoid positional displacement of the positioning frame on the ship board.

[0034] Preferably, a limit plate is provided on the positioning frame through a rotational connection between the shaft and the bearing. The limit plate is an "L"-shaped structure. The limit plate is arranged to conflict with the outer wall of the anti-slip pad. A vertical groove that cooperates with the limit plate is provided on the flip plate. The limit plate can limit the flipping state of the flip plate, thereby realizing adjustment and control of the fixed or mobile state of the positioning frame.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. Through the cooperation of the No. 1 auxiliary roller, the No. 2 auxiliary roller and the conflict clamping mechanism, when the mobile welding vehicle is welding the bulb flat steel to the ship plate, the connecting frame can synchronously drive the positioning frame to move with the mobile welding vehicle, constantly positioning the welding section of the bulb flat steel vertically, avoiding angular deviation between the bulb flat steel and the ship plate during the welding process;

[0037] 2. The clamping distance of the conflict clamping mechanism can be adjusted through the adjustment mechanism, so that it can be adapted to the different thicknesses of the bulb flat steel;

[0038] 3. According to the different specifications of the ball head of the bulb flat steel, the distance between the insertion rod and the slot can be adjusted, and the connection state after adjustment can be limited by the limit mechanism. In addition, the insertion rod connection between the two positioning frames is easy to disassemble and separate, which is also convenient when it is necessary to fix the positioning frame to a certain position of the ship plate and the bulb flat steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of the present invention.

[0040] Figure 2 for Figure 1 Enlarged view of part A in .

[0041] Figure 3It is a schematic diagram of the connection between the mobile welding vehicle and the connecting frame in the present invention.

[0042] Figure 4 This is a schematic diagram of the structure in which the positioning frame is fixed on the shipboard in the present invention.

[0043] Figure 5 for Figure 4 Enlarged view of part B in .

[0044] Figure 6 This is an exploded view of the parts of the connecting frame, the second auxiliary roller and the limiting mechanism in the present invention.

[0045] Figure 7 Schematic diagram of the internal structure of the clamping frame in the present invention.

[0046] Figure 8 for Figure 7 Enlarged view of part C in .

[0047] Figure 9 It is a structural schematic diagram of the extrusion block in the present invention.

[0048] Description of reference numerals:

[0049] Positioning frame 1, mobile welding vehicle 2, connecting frame 3, ship plate 4, auxiliary roller No. 1 5, conflict clamping mechanism 6, clamping frame 6-1, auxiliary roller No. 3 6-2, slider 6-3, movable plate 6-4, guide rod 6-5, guide sleeve 6-6, connecting plate 6-7, reinforcement rod 7, cross bar 8, adjustment mechanism 9, rotating rod 9-1, adjustment plate 9-2, adjustment block 9-3, adjustment ball 9-4, adjustment rod 9-5, auxiliary roller No. 2 10, insertion rod 1 1. Slot 12, limiting mechanism 13, limiting rod 13-1, extrusion block 13-2, rubber sleeve 13-3, pulling handle 13-4, slide 14, movable slot 15, positioning mechanism 16, movable plate 16-1, strip plate 16-2, rubber pad 16-3, No. 1 threaded rod 16-4, reinforcing rib 17, flap 18, anti-slip pad 19, triangular slot 20, spring 21, limiting plate 22, vertical slot 23, extrusion chamfer 24, bulb flat steel 25. DETAILED DESCRIPTION

[0050] The present invention will be further described below with reference to the accompanying drawings. Example

[0051] like Figures 1-9 As shown, this embodiment includes a positioning frame 1, a mobile welding vehicle 2 and a connecting frame 3. The bulb flat steel 25 is arranged on the upper part of the ship plate 4. The positioning frame 1 is arranged above the ship plate 4 and is located on the left side of the bulb flat steel 25. The positioning frame 1 is an "L"-shaped structure. The mobile welding vehicle 2 is movably arranged on the upper part of the ship plate 4 and is located on the right side of the bulb flat steel 25. The connecting frame 3 is movably inserted on both the positioning frame 1 and the mobile welding vehicle 2.

[0052] It also contains:

[0053] Auxiliary rollers 5, there are several of them, all of which are equidistantly connected and screwed into the grooves of the transverse plate of the positioning frame 1 through shafts and bearings, and the auxiliary rollers 5 are movably arranged on the upper part of the shipboard 4, and the positioning frame 1 is provided with a conflict clamping mechanism 6;

[0054] Reinforcement rods 7, there are two reinforcement rods 7, which are welded and fixed on the front and rear sides of the upper part of the horizontal plate of the positioning frame 1. After the upper end of the reinforcement rod 7 is tilted to the right, it is welded and fixed to the vertical plate of the positioning frame 1. A cross bar 8 is welded and fixed between the two reinforcement rods 7. Through the cooperation of the reinforcement rods 7 and the cross bar 8, the structural strength of the positioning frame 1 can be increased, thereby improving the bearing performance of the positioning frame 1. An adjustment mechanism 9 is provided on the cross bar 8, and the adjustment mechanism 9 is provided in conjunction with the conflict clamping mechanism 6;

[0055] Second auxiliary roller 10, there are several second auxiliary rollers 10, which are respectively arranged on the front and rear sides of the two connecting frames 3 through shafts and bearings, and the second auxiliary rollers 10 are arranged to flexibly contact with the bulb flat steel 25;

[0056] Insert rod 11, there are two insert rods 11, which are respectively welded and fixed on the two connecting frames 3, one end of the insert rod 11 is inserted into the slot 12 opened on the other connecting frame 3, and a limiting mechanism 13 is provided on the insert rod 11, which can realize the connection linkage of the two connecting frames 3;

[0057] The conflicting clamping mechanism 6 comprises:

[0058] The clamping frame 6-1 is movably arranged in the groove of the vertical plate of the positioning frame 1. The clamping frame 6-1 is fixed with a connecting plate 6-7 by bolts. Two No. 3 auxiliary rollers 6-2 are screwed together on both sides of the connecting plate 6-7 on the clamping frame 6-1 through shafts and bearings, and the outer ring wall of the No. 3 auxiliary roller 6-2 is movably abutted against the bulb flat steel 25;

[0059] Slide blocks 6-3, there are several slide blocks 6-3, which are slidably arranged in upper and lower slide grooves 14 on the front and rear outer walls of the clamping frame 6-1, and the inner walls of the upper and lower slide grooves 14 are provided with intersecting movable grooves 15, and the movable grooves 15 are provided with positioning mechanisms 16;

[0060] The movable plates 6-4 are multiple and are respectively screwed on the multiple sliders 6-3 through shafts and bearings. The outer end edges of the outer side walls of the movable plates 6-4 are screwed to the clamping frame 6-1 through shafts and bearings.

[0061] There are two guide rods 6-5, which are fixed by bolts on the front and rear sides of the lower edge of the outer wall of the clamping frame 6-1. One end of the guide rod 6-5 is movably inserted in the guide sleeve 6-6. The guide sleeve 6-6 is fixed by bolts on the horizontal plate of the positioning frame 1, and the guide sleeve 6-6 is located above the No. 1 auxiliary roller 5. Through the guiding effect of the guide rod 6-5, the clamping frame 6-1 can drive the No. 3 auxiliary roller 6-2 to move and clamp the ball flat steel 25. When the mobile welding vehicle 2 is performing fillet welding, the No. 1 auxiliary roller 5, the No. 2 auxiliary roller 10 and the No. 3 auxiliary roller 6-2 can all rotate synchronously, so that the positioning frame 1 can move synchronously with the mobile welding vehicle 2, and always locate the welding position between the ball flat steel 25 and the ship plate 4 to avoid deviation of the welding angle;

[0062] The regulating mechanism 9 comprises:

[0063] The rotating rod 9-1 is passed through the bearing in the middle of the crossbar 8. The inner end of the rotating rod 9-1 is fixed with an adjustment plate 9-2 by bolts. Several reinforcing ribs 17 are welded and fixed on the outer ring wall of the rotating rod 9-1 with equal fillet distribution. One side wall of the reinforcing rib 17 is welded and fixed to the adjustment plate 9-2. The reinforcing rib 17 can increase the strength of the connection structure between the adjustment plate 9-2 and the rotating rod 9-1;

[0064] Adjustment blocks 9-3, there are two adjustment blocks 9-3, which are respectively fixed on the adjacent side walls of the adjustment plate 9-2 and the connecting plate 6-7 by bolts, and the height of the adjustment block 9-3 on the connecting plate 6-7 is set lower than the axis height of the rotating rod 9-1. An adjustment ball 9-4 is movably provided in the spherical groove opened on the adjustment block 9-3. The two adjustment balls 9-4 are fixedly connected by an adjustment rod 9-5. The rotating rod 9-1 can drive the adjustment plate 9-2 to rotate. At the same time, affected by the axial offset distance between the two adjustment balls 9-4, the adjustment rod 9-5 can drive the interference clamping mechanism 6 to move, thereby adjusting the clamping distance of the ball flat steel 25, so that the interference clamping mechanism 6 can be adapted and positioned in different states according to the different thickness specifications of the ball flat steel 25;

[0065] The limiting mechanism 13 includes:

[0066] A limiting rod 13-1 is movably provided on the connecting frame 3 and the insertion rod 11. The inner end of the limiting rod 13-1 is fixed with an extrusion block 13-2 by bolts, and the outer end of the limiting rod 13-1 is located outside the connecting frame 3 and is fixed with a pulling handle 13-4 by bolts;

[0067] The rubber sleeve 13-3 is sleeved on the limit rod 13-1 and the extrusion block 13-2, and the rubber sleeve 13-3 is set to conflict with the inner wall of the slot 12. The end of the insertion rod 11 is bonded and fixed to the rubber sleeve 13-3. The diameter of the extrusion block 13-2 is slightly larger than the initial inner diameter of the rubber sleeve 13-3. When the insertion rod 11 is inserted into the slot 12, the movement of the limit rod 13-1 can drive the extrusion block 13-2 to move into the rubber sleeve 13-3, causing the rubber sleeve 13-3 to deform and expand, and conflict with the inner wall of the slot 12 to generate huge friction, so as to realize the limiting connection of the two connecting frames 3 through the insertion rod 11, and prevent the insertion rod 11 between the two connecting frames 3 from being easily loosened. The side edge of the extrusion block 13-2 is provided with an extrusion chamfer 24, which makes it more convenient to move the extrusion block 13-2 into the rubber sleeve 13-3. Example

[0068] See Figure 7 and Figure 8 As shown, the positioning mechanism 16 is further defined based on Example 1, and the positioning mechanism 16 includes:

[0069] There are two movable plates 16 - 1 , each of which is fixed on the two sliders 6 - 3 by bolts, and the movable plates 16 - 1 are movably arranged in the movable groove 15 ;

[0070] A strip plate 16-2 is movably disposed in the movable groove 15. A rubber pad 16-3 is bonded and fixed to one side wall of the strip plate 16-2. The rubber pad 16-3 is disposed in contact with the movable plate 16-1.

[0071] Threaded rod No. 16-4, the threaded rod No. 16-4 is set on the clamping frame 6-1 through a threaded connection, and the inner end of the threaded rod No. 16-4 is screwed on the strip plate 16-2 through a bearing. The threaded rod No. 1 16-4 can drive the strip plate 16-2 to move during the rotation process, so that the strip plate 16-2 can drive the rubber pad 16-3 to squeeze and contact with the moving plate 16-1 and generate huge friction force, thereby realizing the positioning of the moving plate 16-1 and the slider 6-3, and avoiding the loosening of the clamping positioning of the ball flat steel 25 by the clamping mechanism 6 during the corner welding process. Example

[0072] See Figure 4 and Figure 5As shown, based on Example 1, a flap 18 is provided on the outer wall of the transverse plate of the positioning frame 1 through a hinge, and an anti-skid pad 19 is fixedly provided on the outer wall of the flap 18. The anti-skid pad 19 is provided to cooperate with the ship plate 4. A triangular groove 20 is provided on both the front and rear sides of the outer wall of the transverse plate of the positioning frame 1. A spring 21 is fixedly provided in the triangular groove 20. The other end of the spring 21 is fixedly connected to the flap 18. When the positioning frame 1 needs to be fixedly placed on the ship plate 4 without moving with the mobile welding vehicle 2, the flap 18 is applied by the spring 21. The added rebound thrust can flip the flap 18 and make the anti-skid pad 19 come into conflict with the ship board 4 to generate friction, so as to avoid the position displacement of the positioning frame 1 on the ship board 4. A limit plate 22 is provided on the positioning frame 1 through the shaft and bearing rotation. The limit plate 22 is an "L"-shaped structure. The limit plate 22 is in conflict with the outer wall of the anti-skid pad 19. A vertical groove 23 is provided on the flap 18 to cooperate with the limit plate 22. The flipping state of the flap 18 can be limited by the limit plate 22, thereby realizing the adjustment and control of the fixed or mobile state of the positioning frame 1.

[0073] When using the present invention, the positioning plate and the mobile welding vehicle 2 are placed on the shipboard 4 and are respectively located on the left and right sides of the bulb flat steel 25, so that the No. 1 auxiliary roller 5 is in contact with the shipboard 4, and then the insertion rod 11 is inserted into the slot 12 to different depths according to the different specifications of the ball head of the bulb flat steel 25, and then the pulling handle 13-4 can be pulled outward, and the pulling handle 13-4 drives the extrusion block 13-2 to move into the rubber sleeve 13-3 through the limiting rod 13-1, and the rubber sleeve 13-3 is pressed. The rod 11 is squeezed and deformed, so that its inner diameter and outer diameter are expanded synchronously, and it conflicts with the inner wall of the slot 12 and generates a huge friction force. Under the influence of the friction force, the insertion rod 11 can be limited in the slot 12. At the same time, the second auxiliary roller 10 conflicts with the ball flat steel 25. Then the rotating rod 9-1 can be twisted, and the rotating rod 9-1 drives the adjusting plate 9-2 to rotate, changing the axial center distance of the two adjusting balls 9-4, so that the adjusting rod 9-5 can drive the clamping frame 6-1 according to the guide rod through the connecting plate 6-7. 6-5 guide to move, the clamping frame 6-1 drives the third auxiliary roller 6-2 to move and make it conflict with the ball flat steel 25, so that the conflict clamping mechanism 6 can be adapted and adjusted according to the thickness of the ball flat steel 25. During the movement of the clamping frame 6-1, the slider 6-3 moves in the slide 14 and drives the inner end of the movable plate 6-4 to flip toward the ball flat steel 25. Then, the No. 1 threaded rod 16-4 can be screwed to make the strip plate 16-2 drive the rubber pad 16-3 to move and make the rubber The rubber pad 16-3 and the movable plate 16-1 produce friction, which can limit the movable plate 16-1 and the slider 6-3. Then, the mobile welding vehicle 2 can be started to perform fillet welding between the bulb flat steel 25 and the ship plate 4. Driven by the connecting frame 3 and the inserting rod 11, and coordinated with the rolling of the No. 1 auxiliary roller 5, the No. 2 auxiliary roller 10 and the No. 3 auxiliary roller 6-2, the positioning frame 1 also moves with the mobile welding vehicle 2, and the welding section of the bulb flat steel 25 is vertically positioned at all times.

[0074] When the positioning frame 1 is no longer needed to follow the mobile welding vehicle 2 for mobile positioning, the pulling handle 13-4 can be pressed inward, and the pulling handle 13-4 drives the extrusion block 13-2 to move out of the rubber sleeve 13-3 through the limiting rod 13-1. At this time, the rubber sleeve 13-3 is reset, and the huge friction generated by the conflict with the inner wall of the slot 12 disappears. Then the positioning frame 1 on the right can be moved to the right, so that the insertion rod 11 and the limiting mechanism 13 are separated from the slot 12. Then, another positioning frame 1 can be taken out and placed on the shipboard 4 at the right side of the bulb flat steel 25, and then the positioning frame 1 can be moved to the right side according to the above method. The connecting frame 3 on the frame 1 is connected to the connecting frame 3 on the left side through the cooperation of the insertion rod 11 and the limiting mechanism 13, and the conflicting clamping mechanism 6 on the positioning frame 1 conflicts with the ball flat steel 25. Then the limiting plate 22 can be rotated so that it is located in the vertical groove 23. At this time, the spring 21 can push the flap 18 to flip outward, so that the anti-slip pad 19 conflicts with the ship board 4 and generates friction, which is used to limit the position of the positioning frame 1 on the ship board 4 to avoid the positioning state of the positioning frame 1 on the ball flat steel 25 from being offset. At this time, the two positioning frames 1 can be fixed on the ship board 4 and stably clamp and position the two sides of the ball flat steel 25.

[0075] Compared with the prior art, the beneficial effects of this specific embodiment are as follows:

[0076] 1. Through the cooperation of the No. 1 auxiliary roller 5, the No. 2 auxiliary roller 10, and the abutting clamping mechanism 6, when the mobile welding vehicle 2 is welding the bulb flat steel 25 to the ship plate 4, the connecting frame 3 can synchronously drive the positioning frame 1 to move with the mobile welding vehicle 2, constantly vertically positioning the welding section of the bulb flat steel 25, and avoiding angular deviation between the bulb flat steel 25 and the ship plate 4 during the welding process;

[0077] 2. The clamping distance of the conflicting clamping mechanism 6 can be adjusted by the adjusting mechanism 9 so that it can be adapted to the different thicknesses of the bulb flat steel 25;

[0078] 3. According to the different specifications of the ball head of the bulb flat steel 25, the distance between the insertion rod 11 and the slot 12 can be adjusted, and the connection state after adjustment can be limited by the limiting mechanism 13. In addition, the connection of the insertion rod 11 between the two positioning frames 1 is easy to disassemble and separate, and it is also convenient to fix the positioning frame 1 to a certain position of the ship plate 4 and the bulb flat steel 25.

[0079] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A bulb flat steel welding machine with an adjustable fillet welding positioning frame, comprising a positioning frame (1), a mobile welding vehicle (2) and a connecting frame (3), wherein the bulb flat steel (25) is arranged on the upper part of a ship plate (4), the positioning frame (1) is arranged above the ship plate (4) and is located at the left side of the bulb flat steel (25), the positioning frame (1) is arranged in an "L"-shaped structure, the mobile welding vehicle (2) is movably arranged on the upper part of the ship plate (4) and is located at the right side of the bulb flat steel (25), and the connecting frame (3) is movably inserted on both the positioning frame (1) and the mobile welding vehicle (2); It is characterized in that It also contains: A number of auxiliary rollers (5), each of which is equidistantly distributed and screwed together in a groove of a transverse plate of a positioning frame (1) through shafts and bearings, and the number of auxiliary rollers (5) is movably arranged on the upper part of the shipboard (4) in a resisting manner, and a resisting clamping mechanism (6) is provided on the positioning frame (1); Reinforcement rods (7), the number of the reinforcement rods (7) is two, and the reinforcement rods (7) are fixedly arranged on the front and rear sides of the upper portion of the horizontal plate of the positioning frame (1), the upper end of the reinforcement rod (7) is tilted to the right side and fixedly connected to the vertical plate of the positioning frame (1), a horizontal rod (8) is fixedly arranged between the two reinforcement rods (7), an adjustment mechanism (9) is provided on the horizontal rod (8), and the adjustment mechanism (9) is arranged in coordination with the abutment clamping mechanism (6); Second auxiliary rollers (10), the second auxiliary rollers (10) are multiple and are respectively arranged on the front and rear sides of the two connecting frames (3) through shafts and bearings, and the second auxiliary rollers (10) are arranged to flexibly contact with the bulb flat steel (25); Insertion rods (11), there are two insertion rods (11), which are fixedly arranged on two connecting frames (3) respectively, one end of the insertion rod (11) is inserted into a slot (12) provided on the other connecting frame (3), and a limiting mechanism (13) is provided on the insertion rod (11); The conflicting clamping mechanism (6) comprises: A clamping frame (6-1) is movably arranged in a groove of a vertical plate of a positioning frame (1); a connecting plate (6-7) is fixedly arranged on the clamping frame (6-1); two No. 3 auxiliary rollers (6-2) are provided on both sides of the clamping frame (6-1) and are screwed together via shafts and bearings; and the outer ring wall of the No. 3 auxiliary roller (6-2) is movably contacted with the bulb flat steel (25); Slide blocks (6-3), wherein the slide blocks (6-3) are multiple and are respectively slidably arranged in upper and lower sliding grooves (14) on the front and rear outer side walls of the clamping frame (6-1); the inner side walls of the upper and lower sliding grooves (14) are provided with interpenetrating moving grooves (15); and a positioning mechanism (16) is provided in the moving grooves (15); A plurality of movable plates (6-4) are respectively screwed onto the plurality of sliders (6-3) via shafts and bearings, and the outer end edges of the outer side walls of the movable plates (6-4) are screwed onto the clamping frame (6-1) via shafts and bearings; Guide rods (6-5), the guide rods (6-5) are two and are fixedly arranged on the front and rear sides of the lower edge of the outer side wall of the clamping frame (6-1), one end of the guide rod (6-5) is movably inserted into the guide sleeve (6-6), the guide sleeve (6-6) is fixedly arranged on the horizontal plate of the positioning frame (1), and the guide sleeve (6-6) is located above the first auxiliary roller (5); The regulating mechanism (9) comprises: A rotating rod (9-1), the rotating rod (9-1) is passed through a bearing in the middle of the crossbar (8), and an adjusting plate (9-2) is fixedly provided on the inner end of the rotating rod (9-1); There are two adjustment blocks (9-3), each of which is fixedly arranged on adjacent side walls of the adjustment plate (9-2) and the connecting plate (6-7), and the height of the adjustment block (9-3) on the connecting plate (6-7) is lower than the height of the axis of the rotating rod (9-1). An adjustment ball (9-4) is movably arranged in a spherical groove provided on the adjustment block (9-3), and the two adjustment balls (9-4) are fixedly connected via an adjustment rod (9-5); The limiting mechanism (13) comprises: A limiting rod (13-1) is movably provided on the connecting frame (3) and the inserting rod (11); an extrusion block (13-2) is fixedly provided at the inner end of the limiting rod (13-1); and a pulling handle (13-4) is fixedly provided at the outer end of the limiting rod (13-1) at a position outside the connecting frame (3); A rubber sleeve (13-3) is sleeved on the limiting rod (13-1) and the extrusion block (13-2), and the rubber sleeve (13-3) is arranged to abut against the inner side wall of the slot (12), and the end of the insertion rod (11) is fixedly connected to the rubber sleeve (13-3).

2. A bulb flat steel welding machine with an adjustable fillet welding positioning frame according to claim 1, characterized in that: The positioning mechanism (16) comprises: There are two movable plates (16-1), each fixedly disposed on the two sliders (6-3), and the movable plates (16-1) are movably disposed in the movable groove (15); A strip plate (16-2), the strip plate (16-2) being movably arranged in the movable groove (15), a rubber pad (16-3) being fixedly arranged on a side wall of the strip plate (16-2), and the rubber pad (16-3) being arranged in contact with the movable plate (16-1); A number one threaded rod (16-4) is provided on the clamping frame (6-1) via a screw thread connection, and an inner end of the number one threaded rod (16-4) is provided on the strip plate (16-2) via a screw bearing connection.

3. The bulb flat steel welding machine with an adjustable fillet welding positioning frame according to claim 1, characterized in that: A plurality of reinforcing ribs (17) are fixedly provided with equal fillet distribution on the outer ring wall of the rotating rod (9-1), and a side wall of the reinforcing rib (17) is fixedly connected to the adjustment plate (9-2).

4. The bulb flat steel welding machine with an adjustable fillet welding positioning frame according to claim 1, characterized in that: The side edge of the extrusion block (13-2) is provided with an extrusion chamfer (24), which facilitates moving the extrusion block (13-2) into the rubber sleeve (13-3).

5. The bulb flat steel welding machine with an adjustable fillet welding positioning frame according to claim 1, characterized in that: A flap (18) is provided on the outer side wall of the transverse plate of the positioning frame (1) by hinge rotation, and an anti-skid pad (19) is fixedly provided on the outer side wall of the flap (18), and the anti-skid pad (19) is provided in cooperation with the ship board (4). A triangular groove (20) is provided on both the front and rear sides of the outer side wall of the transverse plate of the positioning frame (1), and a spring (21) is fixedly provided in the triangular groove (20), and the other end of the spring (21) is fixedly connected to the flap (18).

6. The bulb flat steel welding machine with an adjustable fillet welding positioning frame according to claim 5, characterized in that: A limit plate (22) is provided on the positioning frame (1) through a rotational connection between a shaft and a bearing. The limit plate (22) is provided in an L-shaped structure. The limit plate (22) is provided in contact with the outer side wall of the anti-slip pad (19). A vertical groove (23) is provided on the flap (18) to match the limit plate (22).

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