Building steel structure welding positioning device

Abstract

The invention relates to the technical field of steel structure welding, in particular to a building steel structure welding positioning device. Comprising a welding table, a positioning mechanism is arranged on the welding table and comprises a push plate arranged on the upper side of the welding table and driven by a first hydraulic cylinder, a swing frame is hinged to the welding table through a support, and a torsional spring is arranged between the swing frame and the support. By arranging the positioning mechanism, a wing plate can be positioned in multiple directions, after the wing plate is placed on the welding table, the piston end of a first hydraulic cylinder is controlled to extend, the position of the wing plate can be adjusted through two positioning plates, centering positioning of the wing plate is completed, the top of the wing plate can be extruded by enabling a swing frame to turn downwards, and the welding precision of the wing plate is improved. The wing plates are prevented from being dislocated in the moving process, and after the wing plates are centered and positioned, the two wing plates can be separated from each other to slide through the separating assembly, so that the wing plates can be bent subsequently.

Description

Technical Field

[0001] This invention relates to the field of steel structure welding technology, and in particular to a positioning device for welding steel structures in buildings. Background Technology

[0002] In the welding process, the accuracy of positioning determines whether the steel structure can be used reliably. By using a positioning device to accurately adjust the position of the steel structure, not only can the welding quality of the steel structure be guaranteed, but welding efficiency can also be effectively improved.

[0003] Existing positioning devices can usually only achieve simple positioning of straight steel structures. When the flange of the steel structure needs to be bent, after the flange is attached to the web plate by the positioning equipment, the flange needs to be tapped to make simple adjustments to its position. It is difficult to achieve accurate positioning of the flange by relying on the observation of the workers. This results in the weld between the flange and the steel structure being too large or too small after bending, which affects the welding quality. In addition, after the flange is bent, the edge of the flange will deform due to bending, which will cause the edges of the two flanges to be misaligned.

[0004] In addition, automatic and semi-automatic arc welding is the mainstream process for welding metal steel structures. It has higher requirements for the accuracy and adaptability of workpiece positioning. Existing positioning devices cannot meet the operational needs of this type of welding process. At the same time, this positioning shortcoming also restricts the standardization, integrated research and development and production of supporting positioning devices in the field of metal welding equipment manufacturing. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides a welding positioning device for building steel structures.

[0006] The technical solution is as follows: A welding positioning device for building steel structures includes a welding table, a positioning mechanism on the welding table, a push plate driven by a first hydraulic cylinder on the upper side of the welding table, a swing frame hinged to the welding table via a bracket, a torsion spring between the swing frame and the bracket, a pair of first guide rails fixedly connected to the welding table, a positioning plate elastically slidably connected within the first guide rails, a first driving component for controlling the rotation of the swing frame and a second driving component for controlling the movement of the positioning plate on the welding table, and a disengagement component for quickly resetting the positioning plate.

[0007] Optionally, the first drive assembly includes a drive frame mounted on the piston end of the first hydraulic cylinder, and a rotating wheel rotatably connected to the drive frame to abut against the swing frame.

[0008] Optionally, the second drive assembly includes a pair of connecting rods hinged to the drive frame, a first slider hinged to the connecting rods is slidably connected in the first guide rail, the first slider has a groove, a wedge block is elastically slidably connected in the groove, and the positioning plate has a shaped groove for the wedge block to be inserted.

[0009] Optionally, the release component includes a release block that is elastically slidably connected within the irregular groove, the release block abutting against the wedge block.

[0010] Optionally, the release assembly further includes a push rod fixed to the first guide rail, the push rod abutting against the release block.

[0011] Optionally, the welding table is provided with a bonding mechanism, which includes a pair of swing arms hinged to the welding table, a bending roller rotatably connected to the swing arms, a pair of second guide rails fixed to the welding table, a second slider elastically slidably connected within the second guide rails, and an arc-shaped plate fixed to the second slider.

[0012] Optionally, the bonding mechanism further includes an adjusting roller rotatably connected to the second slider, the adjusting roller cooperating with the swing arm.

[0013] Optionally, a pair of third guide rails are fixedly connected to the welding table, and a shaped frame driven by a second hydraulic cylinder is slidably connected inside the third guide rails. A pair of L-shaped plates are slidably fitted on the shaped frame.

[0014] Optionally, an adjustment plate is fixedly connected to the L-shaped plate.

[0015] Optionally, a bidirectional lead screw is rotatably connected inside the irregular frame, the L-shaped plate is threadedly connected to the bidirectional lead screw, a gear is fitted on the bidirectional lead screw, and a pair of racks that mesh with the gears are fixedly connected to the welding table.

[0016] The beneficial effects of this invention are: 1. This invention, by setting a positioning mechanism, can position the wing plate in multiple directions. After the wing plate is placed on the welding table, by controlling the piston end of the first hydraulic cylinder to extend, the position of the two positioning plates on the wing plate can be adjusted to complete the centering positioning of the wing plate. By flipping the swing frame downward, the top of the wing plate can be squeezed to prevent the wing plate from being misaligned during movement. After the centering positioning of the wing plate is completed, the two wing plates can slide away from each other by disengaging the assembly, so as to facilitate the subsequent bending of the wing plate.

[0017] 2. By setting up an arc-shaped plate, after the bending of the wing plate is completed, the second slider can drive the arc-shaped plate to fit against the bending point of the wing plate, ensuring that the bending point of the wing plate fits against the steel structure, which facilitates subsequent welding.

[0018] 3. By setting up L-shaped plates and adjusting plates, after the wing plate is bent, the piston end of the second hydraulic cylinder is controlled to extend so that the two L-shaped plates on the irregular frame move closer to each other, thereby making the L-shaped plates fit against the outer wall of the wing plate and the steel structure. The two adjusting plates can align the upper and lower sides of the wing plate and the steel structure.

[0019] 4. This invention can be directly used with automatic and semi-automatic arc welding equipment. The precise positioning effect can give full play to the operational advantages of this type of welding equipment and improve the overall automation level of welding operations. At the same time, it provides a highly adaptable special positioning device for the field of metal welding equipment manufacturing, filling the research and development gap of steel structure bending welding positioning equipment, and promoting the improvement of welding equipment manufacturing categories and process upgrades. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the positioning mechanism of the present invention; Figure 3 This is a schematic diagram of the installation of the push plate of the present invention; Figure 4 This is a schematic diagram of the installation at the rotating wheel of the present invention; Figure 5 This is a schematic diagram of the installation at the connecting rod of the present invention; Figure 6 This is a schematic diagram of the structure of the present invention detached from the component; Figure 7 This is a schematic diagram of the installation of the top rod of the present invention; Figure 8 This is a schematic diagram of the installation of the swing arm of the present invention; Figure 9 This is a schematic diagram of the installation at the second slider of the present invention; Figure 10 This is a schematic diagram of the installation at the third guide rail of the present invention; Figure 11 This is a schematic diagram of the installation of the bidirectional lead screw of the present invention.

[0021] The markings in the attached diagram are as follows: 1: Welding table, 201: First hydraulic cylinder, 202: Push plate, 203: Swing frame, 204: First guide rail, 205: Positioning plate, 301: Drive frame, 302: Rotary wheel, 401: Connecting rod, 402: First slider, 403: Wedge block, 501: Release block, 601: Top rod, 701: Swing arm, 7011: Motor, 702: Bending roller, 703: Second guide rail, 704: Second slider, 705: Arc plate, 801: Adjusting roller, 901: Third guide rail, 902: Second hydraulic cylinder, 903: Irregular frame, 904: L-shaped plate, 1001: Adjusting plate, 1101: Bidirectional lead screw, 100: Wing plate. Detailed Implementation

[0022] The embodiments of the present invention will be described below with reference to the accompanying drawings. Example 1

[0023] A welding positioning device for building steel structures, such as Figures 1-11 As shown, the welding table 1 is provided with a positioning mechanism for adjusting the position of the wing plate 100. The positioning mechanism includes a first hydraulic cylinder 201 installed on the top of the welding table 1. A push plate 202 is fixedly connected to the piston end of the first hydraulic cylinder 201. A swing frame 203 is hinged to the top of the welding table 1 through a bracket. A torsion spring is provided between the swing frame 203 and the bracket. A pair of first guide rails 204 are fixedly connected to the top of the welding table 1. A positioning plate 205 for pushing the wing plate 100 is elastically slidably connected in the first guide rails 204 along the left and right directions. The welding table 1 is provided with a first drive assembly for controlling the rotation of the swing frame 203 and a second drive assembly for controlling the movement of the positioning plate 205, as well as a disengagement assembly for quickly resetting the positioning plate 205. The quick resetting of the positioning plate 205 by the disengagement assembly facilitates bending of the wing plate 100.

[0024] like Figure 4 As shown, the first drive assembly includes a drive frame 301 mounted on the piston end of the first hydraulic cylinder 201. The top front side of the drive frame 301 is rotatably connected to a rotating wheel 302 that abuts against the swing frame 203. When the piston end of the first hydraulic cylinder 201 extends, it can cause the swing frame 203 to press against the wing plate 100.

[0025] like Figures 5-7 As shown, the second drive assembly includes a pair of connecting rods 401 hinged to the drive frame 301. A first slider 402 located behind the positioning plate 205 and hinged to the connecting rods 401 is slidably connected in the first guide rail 204. A groove is provided on the front side of the first slider 402. A wedge block 403 is elastically slidably connected in the groove. A shaped groove for inserting the wedge block 403 is provided on the lower rear side of the positioning plate 205.

[0026] like Figure 6 and Figure 7 As shown, the detachment assembly includes a detachment block 501 that is elastically slidably connected in the irregular groove along the front-back direction. The detachment block 501 abuts against the wedge block 403. After the two positioning plates 205 complete the positioning work of the wing plate 100, the detachment block 501 can push the wedge block 403 to detach from the irregular groove of the positioning plate 205.

[0027] like Figure 6 and Figure 7 As shown, the release assembly also includes a push rod 601 fixed to the first guide rail 204. The push rod 601 abuts against the release block 501, and the push rod 601 can cause the release block 501 to elastically extend and slide by pressing against the release block 501.

[0028] Initially, the torsion spring is in the released state, the wedge block 403 is inserted into the irregular groove of the corresponding positioning plate 205 and abuts against the rear side of the release block 501. The gap between the two positioning plates 205 is sufficient to smoothly insert the wing plate 100. The wing plate 100 is placed on the welding table 1 in the position between the two positioning plates 205. Then, the extension end of the first hydraulic cylinder 201 is controlled to extend. The extension end of the first hydraulic cylinder 201 drives the push plate 202 and the drive frame 301 to move forward. The push plate 202 pushes... The movable wing plate 100 is close to the steel structure. The drive frame 301 drives the rotating wheel 302 to press the swing frame 203, and pushes the two first sliders 402 through the two connecting rods 401. The swing frame 203 rotates downward under force, the torsion spring stores energy, and the first sliders 402 slide along the first guide rail 204 under force, and drive the wedge block 403 to press the irregular groove of the positioning plate 205, so that the positioning plate 205 elastically contracts and slides along the first guide rail 204 simultaneously. Taking the leftward misalignment of the wing plate 100 as an example, the left side The positioning plate 205 first abuts against the left side of the wing plate 100, pushing the wing plate 100 to slide to the right to adjust its position. Then, the two release blocks 501 contact the corresponding push rods 601 respectively. The push rods 601 press against the release blocks 501, causing the release blocks 501 to elastically extend and slide under force, pushing the wedge block 403 to elastically contract and slide until both positioning plates 205 abut against the wing plate 100. At the same time, the push plate 202 pushes the wing plate 100 to press firmly against the steel structure, and the swing frame 203... Contacting the top of the wing plate 100, the swing frame 203 presses against the top of the wing plate 100, so that the bottom of the wing plate 100 is pressed against the welding table 1, preventing gaps from forming between the wing plate 100 and the top of the welding table 1 during the pushing process, thus achieving the centering positioning of the wing plate 100. At this time, the release block 501 completely pushes the corresponding wedge block 403 out of the irregular groove of the positioning plate 205, and both positioning plates 205 elastically release and slide back away from the wing plate 100, so as to facilitate the subsequent bending of the wing plate 100.

[0029] like Figure 8 and Figure 9 As shown, the welding table 1 is equipped with a bonding mechanism, which includes a pair of swing arms 701 hinged to the welding table 1. A motor 7011 for driving the swing arms 701 to rotate is installed inside the welding table 1. A bending roller 702 is rotatably connected to the swing arms 701. A pair of second guide rails 703 are fixedly connected to the welding table 1. A second slider 704 is elastically slidably connected inside the second guide rails 703 along the front-back direction. An arc plate 705 is fixedly connected to the second slider 704. The arc plate 705 is used to make the wing plate 100 fit tightly against the steel structure.

[0030] like Figure 9As shown, the bonding mechanism also includes an adjusting roller 801 rotatably connected to the second slider 704. The adjusting roller 801 cooperates with the swing arm 701, and when the swing arm 701 moves, it can drive the second slider 704 to slide through the adjusting roller 801.

[0031] like Figures 9-11 As shown, a pair of third guide rails 901 are fixedly connected to the top of the welding table 1. A special-shaped frame 903 driven by a second hydraulic cylinder 902 is slidably connected inside the third guide rails 901. The second hydraulic cylinder 902 is installed on the welding table 1. A pair of L-shaped plates 904 are slidably fitted on the special-shaped frame 903 in the vertical direction. The L-shaped plates 904 are used to press the wing plate 100.

[0032] like Figure 10 and Figure 11 As shown, an adjustment plate 1001 is fixedly connected to the L-shaped plate 904. By pressing the top or bottom of the wing plate 100 with the adjustment plate 1001, the wing plate 100 can be aligned with the edge of the steel structure.

[0033] like Figure 10 and Figure 11 As shown, a bidirectional lead screw 1101 is rotatably connected inside the irregular frame 903. The L-shaped plate 904 is threadedly connected to the bidirectional lead screw 1101. A gear is fitted in the middle of the bidirectional lead screw 1101. A pair of racks that mesh with the gears are fixed to the top of the welding table 1. When the irregular frame 903 slides along the third guide rail 901, the L-shaped plate 904 can move through the cooperation of the gears and racks.

[0034] Initially, the second slider 704 is positioned at the front end of the corresponding third guide rail 901. After centering the wing plate 100, the output shaft of the control motor 7011 rotates. The output shaft of the motor 7011 drives the swing arm 701 to rotate, which in turn drives the bending roller 702 to move. After rotating, the swing arm 701 contacts the adjusting roller 801 and squeezes it. The adjusting roller 801, under force, causes the second slider 704 to elastically contract and slide. The second slider 704 drives the arc plate 705 to move forward. After the bending roller 702 moves, it contacts the wing plate 100 and squeezes it, causing the wing plate 100 to bend and fit against the web of the steel structure. At the same time, the arc plate 705 fits and squeezes against the bent part of the wing plate 100 to prevent gaps between the bent part of the wing plate 100 and the web of the steel structure. Then, the piston ends of the two second hydraulic cylinders 902 are extended. The piston ends of the second hydraulic cylinders 902 drive the irregular frame 903 to slide along the third guide rail 901. The irregular frame 903 drives the two L-shaped plates 904 and the double-acting screw 1101 to move. The L-shaped plates 904 drive the adjusting plate 1001 to move. The gear on the double-acting screw 1101, under the action of the corresponding rack, drives the double-acting screw 1101 to rotate. The double-acting screw 1101 drives the two L-shaped plates 904 to slide closer to each other along the irregular frame 903. Taking the left side of the wing plate 100 as an example, when the left edge of the wing plate 100 is bent and causes upward or downward misalignment, the upper side... The lower adjusting plate 1001 contacts the top or bottom of the wing plate 100 and presses and corrects the wing plate 100 until the L-shaped plate 904 fits against the wing plate 100 and the steel structure. The L-shaped plate 904 pushes the wing plate 100 to make the weld gap between the two sides of the wing plate 100 and the steel structure consistent, and the wing plate 100 is aligned with the upper and lower sides of the steel structure under the action of the adjusting plate 1001. This completes the positioning of the wing plate 100, and the wing plate 100 can then be welded.

[0035] After the welding work is completed, the output shaft of motor 7011 is first reversed. The output shaft of motor 7011 drives the swing arm 701 to reverse, and the swing arm 701 drives the bending roller 702 to move and reset. The swing arm 701 releases the pressure on the adjusting roller 801, and the second slider 704 elastically releases and slides, driving the arc plate 705 and the adjusting roller 801 to move and reset. Then, the piston ends of the first hydraulic cylinder 201 and the two second hydraulic cylinders 902 are controlled to retract and reset. The piston end of the first hydraulic cylinder 201 drives the push plate 202 and the drive frame 301 to move backward. The push plate 202 is no longer in contact with the wing plate 100. The drive frame 301 drives the rotating wheel 302 to move backward. The torsion spring is gradually released, driving the swing frame 203 to rotate upward. The swing frame 203 is no longer in contact with the top of the wing plate 100. At the same time, the drive frame 301 pulls the two first sliders 402 along the two connecting rods 401 respectively. The first guide rails 204 slide away from each other. The first slider 402 drives the wedge block 403 to move. Then, the inclined surface of the wedge block 403 contacts the outer wall of the corresponding positioning plate 205 and is squeezed and elastically contracted by the outer wall of the positioning plate 205 until the piston end of the first hydraulic cylinder 201 contracts and resets. The wedge block 403 aligns with the irregular groove of the positioning plate 205 and elastically releases and slides into the irregular groove to complete the reset. The piston end of the second hydraulic cylinder 902 drives the irregular frame 903 to slide and reset along the third guide rail 901. The irregular frame 903 drives the two L-shaped plates 904 and the bidirectional screw 1101 on it to move. The gear drives the bidirectional screw 1101 to reverse and reset under the action of the rack. The bidirectional screw 1101 drives the L-shaped plate 904 to slide and reset along the irregular frame 903. The L-shaped plate 904 drives the adjusting plate 1001 to move and reset, thereby completing the reset work of the device.

[0036] Although the invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims should be given the broadest interpretation so as to cover all variations and equivalent structures and functions.

Claims

1. A welding positioning device for building steel structures, characterized in that: The welding table (1) is provided with a positioning mechanism. The positioning mechanism includes a push plate (202) driven by a first hydraulic cylinder (201) on the upper side of the welding table (1). A swing frame (203) is hinged to the welding table (1) by a bracket. A torsion spring is provided between the swing frame (203) and the bracket. A pair of first guide rails (204) are fixed to the welding table (1). A positioning plate (205) is elastically slidably connected in the first guide rails (204). The welding table (1) is provided with a first driving component for controlling the swing frame (203) to flip and a second driving component for controlling the positioning plate (205) to move, as well as a disengagement component for quickly resetting the positioning plate (205).

2. The welding positioning device for building steel structures according to claim 1, characterized in that: The first drive assembly includes a drive frame (301) mounted on the piston end of the first hydraulic cylinder (201), and a rotating wheel (302) that abuts against the swing frame (203) is rotatably connected to the drive frame (301).

3. The welding positioning device for building steel structures according to claim 2, characterized in that: The second drive assembly includes a pair of connecting rods (401) hinged to the drive frame (301). A first slider (402) hinged to the connecting rods (401) is slidably connected in the first guide rail (204). A groove is provided on the first slider (402). A wedge block (403) is elastically slidably connected in the groove. A shaped groove for inserting the wedge block (403) is provided on the positioning plate (205).

4. The welding positioning device for building steel structures according to claim 3, characterized in that: The release component includes a release block (501) that is elastically slidably connected in the irregular groove, the release block (501) abutting against the wedge block (403).

5. A welding positioning device for building steel structures according to claim 4, characterized in that: The release assembly also includes a push rod (601) fixed to the first guide rail (204), the push rod (601) abutting against the release block (501).

6. The welding positioning device for building steel structures according to claim 1, characterized in that: The welding table (1) is provided with a bonding mechanism, which includes a pair of swing arms (701) hinged to the welding table (1), a bending roller (702) rotatably connected to the swing arms (701), a pair of second guide rails (703) fixedly connected to the welding table (1), a second slider (704) elastically slidably connected inside the second guide rails (703), and an arc plate (705) fixedly connected to the second slider (704).

7. A welding positioning device for building steel structures according to claim 6, characterized in that: The bonding mechanism also includes an adjusting roller (801) rotatably connected to the second slider (704), the adjusting roller (801) cooperating with the swing arm (701).

8. A welding positioning device for building steel structures according to claim 6, characterized in that: A pair of third guide rails (901) are fixedly connected to the welding table (1). A special-shaped frame (903) driven by a second hydraulic cylinder (902) is slidably connected inside the third guide rails (901). A pair of L-shaped plates (904) are slidably fitted on the special-shaped frame (903).

9. A welding positioning device for building steel structures according to claim 8, characterized in that: An adjusting plate (1001) is fixedly connected to the L-shaped plate (904).

10. A welding positioning device for building steel structures according to claim 9, characterized in that: The irregular frame (903) is rotatably connected to a two-way lead screw (1101), the L-shaped plate (904) is threadedly connected to the two-way lead screw (1101), a gear is fitted on the two-way lead screw (1101), and a pair of racks that mesh with the gears are fixed on the welding table (1).

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