Welding equipment for constructional engineering steel structure assembly

Abstract

The invention relates to the technical field of welding, and particularly discloses welding equipment for constructional engineering steel structure assembly, which comprises a horizontally arranged supporting base, a supporting column is fixedly mounted at the front end of the upper surface of the supporting base, and a mounting sliding table is arranged on the front side of the supporting column. And a remotely-controlled operation mechanical arm is rotationally installed on the front side of the installation sliding table, a welding head used for welding the constructional engineering steel structure is installed at the top end of the operation mechanical arm, a lifting lead screw is rotationally installed in the supporting column, and the head of the lifting lead screw is driven by a driving motor. According to the welding equipment for constructional engineering steel structure assembly, novel structural design is adopted, a conveying pump is started in the welding process, negative pressure is formed at the position of a negative pressure head through the conveying pump, and therefore smoke generated during welding is sucked under the action of the negative pressure and then conveyed into a purifying box through a connecting pipeline; and the smoke is discharged after being filtered and purified by using the filter cotton in the purification box, so that the surrounding environment is prevented from being polluted.

Description

Technical Field

[0001] The invention relates to the technical field of welding, in particular to welding equipment used for assembling steel structures in construction projects. Background Art

[0002] Welding is a process that connects two or more materials (usually metals) together by heating, pressurizing or a combination of both. It is widely used in the manufacturing and construction industries. In the construction industry, especially for prefabricated steel structures, welding equipment is needed to weld the joints after the steel structures are assembled in place to form a solid whole.

[0003] In the prior art, a Chinese patent with publication number CN116441813A discloses a welding device for weld seams of assembled steel structures of buildings, which relates to the technical field of welding devices and includes: a base, a frame, a circular drive mechanism, a welding mechanism, a dust removal mechanism, a cooling mechanism and a transmission component; the welding mechanism and the dust removal mechanism can perform downward, horizontal, upward and reverse horizontal circular motions under the drive of the circular drive mechanism; through the operation of the circular drive mechanism, under the action of the transmission component, the cooling mechanism can be operated, and through the operation of the circular drive mechanism, the dust removal mechanism and the welding mechanism can be driven to perform downward, horizontal, upward and reverse horizontal circular motions; before the welding mechanism welds the weld, the dust removal mechanism cleans the impurities and dust at the weld.

[0004] As another example in the prior art, a Chinese patent with publication number CN114769794A discloses an assembled steel structure building weld welding device, including an equipment seat, an equipment bracket is fixedly arranged on the equipment seat, a slide rail is fixed on the equipment bracket, a slide seat is movably installed on the slide rail, the slide seat is fixedly connected to the welding box, a placement seat and a feed pipe are respectively arranged in the welding box, and also includes: a resisting mechanism, the resisting mechanism is arranged in the placement seat; a feeding mechanism, the feeding mechanism includes a driving assembly, a fixing part, a first moving part, a second connecting part, a sliding part, a third connecting part, a second moving part and a feeding seat, the resisting mechanism can press and release the welding rod in the placement seat, and the feeding mechanism cooperates with the resisting mechanism to realize the feeding and rapid replacement of the welding rod, shorten the welding time of the welded parts, and improve the working efficiency of the welding equipment.

[0005] As another example in the prior art, a Chinese patent with publication number CN118720628A discloses a welding platform for steel structures of prefabricated buildings, comprising a first base plate and a second base plate rotatably arranged relative to each other, and also comprising: a first clamping assembly, the first clamping assembly being arranged on the first base plate, the first clamping assembly comprising two support columns arranged at intervals, the two support columns being provided with a first clamping member and a second clamping member; a second clamping assembly, the second clamping assembly being arranged on the second base plate, the second clamping assembly comprising two support rods arranged at intervals, the two support rods being also fixedly provided with a first clamping member, the top of the support rod being provided with a second lifting member, the top of the second lifting member being provided with a second clamping member identical to that on the support column.

[0006] Based on the above materials, it can be seen that in the prior art, the steel structure of the prefabricated building is generally welded through a welding platform or a welding frame. However, in actual use, welding will generate a large amount of smoke, which contains certain harmful substances. If it is directly discharged, it will pollute the surrounding environment. Summary of the invention

[0007] The object of the present invention is to provide a welding device for assembling steel structures in construction projects, so as to solve the problem of welding fume polluting the environment mentioned in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solution: A welding device for assembling steel structures of construction projects, comprising a horizontally arranged support base, wherein a support column is fixedly installed at the front end of the upper surface of the support base: The front side of the support column is provided with a mounting slide, and a remote-controlled operating mechanical arm is rotatably mounted on the front side of the mounting slide, and a welding head for welding steel structures of construction projects is mounted on the top of the operating mechanical arm, a lifting screw rod is rotatably mounted inside the support column, and the lifting screw rod is driven by a driving motor, and a threaded connection is passed through between the mounting slide and the lifting screw rod; A negative pressure head for absorbing welding fume is fixedly installed on the side of the support column, and a purification box for purifying welding fume is fixedly installed in the middle position of the upper surface of the support base, a discharge pipe is fixedly installed on the side of the purification box, and filter cotton is fixedly installed inside the purification box, and the negative pressure head forms a communication structure with the purification box through a connecting pipe, and the connecting pipe is connected to a delivery pump fixedly installed on the upper surface of the purification box, and a recoil cleaning mechanism is arranged inside the purification box; A pushing frame is fixedly mounted on the rear end of the upper surface of the support base, and a stabilizing mechanism for fixing the device as a whole is arranged outside the pushing frame.

[0009] Preferably, the recoil cleaning mechanism comprises recoil nozzles installed on the left and right sides of the interior of the purification box and blocking plates fixedly installed on the lower surface of the interior of the purification box at equal intervals.

[0010] Preferably, pressure tanks are fixedly installed at the left and right ends of the upper surface of the purification box, and a return pipe is fixedly installed at the inlet position of the pressure tank, and the return pipe is connected to the purification box.

[0011] Preferably, the reflux pipe is interconnected with the booster pump, and a delivery pipe is fixedly installed at the outlet position of the pressure tank, and the delivery pipe is interconnected with the recoil nozzle.

[0012] Preferably, a reciprocating screw is rotatably installed inside the purification box, and a threaded connection is penetrated between the recoil nozzle and the reciprocating screw, and the position of the recoil nozzle corresponds to the position of the filter cotton.

[0013] Preferably, a transmission belt is installed at the lower end of the reciprocating screw, and a driven bevel gear is installed at the other end of the transmission belt, and the driven bevel gear and the driving bevel gear are meshed and connected with each other.

[0014] Preferably, the active bevel gear and the bottom rotating shaft are coaxially fixedly installed, and the bottom rotating shaft is rotationally connected to the supporting base, and movable rollers for overall movement of the device are fixedly installed at the left and right ends of the bottom rotating shaft.

[0015] Preferably, the stabilizing mechanism comprises a mounting block mounted on the outside of the pushing frame and a stabilizing plate fixedly mounted on the outer surface of the mounting block, and a through-type sliding structure is formed between the mounting block and the pushing frame.

[0016] Preferably, the stabilizing plate is in a "C"-shaped structure as a whole, and friction blocks arranged in a matrix are fixedly mounted on the lower surface of the stabilizing plate, and the friction blocks are made of a rubber material with a rough surface.

[0017] Preferably, fixing bolts for fixing the mounting block are threadedly mounted on the left and right sides of the mounting block, and a return spring fixedly connected to the mounting block is arranged above the mounting block, and the return spring is located outside the pushing frame.

[0018] Compared with the prior art, the invention has the following beneficial effects: the welding equipment used for assembling steel structures in construction projects adopts a new structural design, and its specific contents are as follows: 1. Move the device to the welding position with the assistance of the moving roller, then turn on the drive motor, use the drive motor to drive the lifting screw to rotate, and use the lifting screw to drive the installation slide installed with the threaded screw on the outside to move up and down during the rotation process, so that the installation slide moves the operating robot arm to a suitable height, and finally use the welding head at the front end of the operating robot arm to perform welding operations; Furthermore, during the welding process, the delivery pump is turned on to form negative pressure at the position of the negative pressure head, thereby sucking in the fume generated during welding under the action of negative pressure, and then transporting it to the purification box through the connecting pipe. The filter cotton in the purification box is used to filter and purify the fume before discharging it to avoid polluting the surrounding environment.

[0019] 2. Part of the flue gas filtered and purified in the purification box is transported to the pressure tank through the return pipe under the action of the pressure pump. The pressure pump is used to pressurize the flue gas in the pressure tank, so that more flue gas can be stored. Then, the outlet valve of the pressure tank is opened to allow the flue gas to be transported from the delivery pipe to the recoil nozzle and sprayed out, so as to backflush the filter cotton and achieve the purpose of cleaning, thereby ensuring the subsequent use effect of the filter cotton; Furthermore, the backblowing operation is carried out in the process of pushing the device to the next welding position after one welding is completed. When the device is pushed, the moving roller rotates, so that the bottom rotating shaft drives the active bevel gear to rotate. At this time, the driven bevel gear meshing with the active bevel gear drives the reciprocating screw to rotate through the transmission belt. Under the transmission action of the reciprocating screw, the recoil nozzle installed with a thread penetrating through the outside is driven to move up and down, so as to achieve the purpose of comprehensive cleaning of the filter cotton.

[0020] 3. After the device moves to the welding position, loosen the fixing bolts and move the mounting block downward so that the mounting block drives the stabilizing plate to move downward, thereby making the friction block under the stabilizing plate contact the ground and provide greater friction, thereby achieving the purpose of stabilizing the device and avoiding the device moving during welding and affecting the welding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall southwest axis structure of the present invention; Figure 2 It is a schematic diagram of the overall southeast axis side structure of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the support column of the present invention; Figure 4 This is a schematic diagram of the connection relationship between the negative pressure head and the purification box of the present invention; Figure 5 This is a schematic diagram of the internal structure of the purification box of the present invention; Figure 6 For the present invention Figure 5 The enlarged structural diagram at A in the middle; Figure 7 This is a schematic diagram of the bottom structure of the support base of the present invention; Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in the middle; Fig. 9 This is a schematic diagram of the installation position structure of the recoil nozzle of the present invention; Fig.10 It is a structural schematic diagram of the position relationship between the mounting block and the pushing frame of the present invention.

[0022] In the figure: 1. Support base; 2. Support column; 3. Mounting slide; 4. Operating robot arm; 5. Welding head; 6. Lifting screw; 7. Driving motor; 8. Negative pressure head; 9. Purification box; 901. Filter cotton; 902. Blocking plate; 10. Connecting pipe; 11. Delivery pump; 12. Discharge pipe; 13. Recoil nozzle; 14. Return pipe; 15. Pressure tank; 16. Pressure pump; 17. Delivery pipe; 18. Reciprocating screw; 19. Transmission belt; 20. Driven bevel gear; 21. Driving bevel gear; 22. Bottom shaft; 23. Moving roller; 24. Pushing frame; 25. Mounting block; 26. Stabilizing plate; 27. Friction block; 28. Fixing bolt; 29. ​​Reset spring. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figure 1-Figure 3 and Fig.10 In order to achieve the purpose of welding the assembled steel structure, the present embodiment provides the following technical solutions, which specifically disclose: a horizontally arranged support base 1, a support column 2 is fixedly installed on the front end of the upper surface of the support base 1, a mounting slide 3 is arranged on the front side of the support column 2, and a remote-controlled operating mechanical arm 4 is rotatably installed on the front side of the mounting slide 3, and a welding head 5 for welding the steel structure of the construction project is installed on the top of the operating mechanical arm 4, a lifting screw rod 6 is rotatably installed inside the support column 2, and the lifting screw rod 6 is driven by a driving motor 7, and a threaded connection is passed through the mounting slide 3 and the lifting screw rod 6, a pushing frame 24 is fixedly installed on the rear end of the upper surface of the support base 1, and the pushing frame 24 A stabilizing mechanism for fixing the entire device is arranged on the outside, and the stabilizing mechanism includes a mounting block 25 installed on the outside of the pushing frame 24 and a stabilizing plate 26 fixedly installed on the outer surface of the mounting block 25, and a through-type sliding structure is formed between the mounting block 25 and the pushing frame 24. The stabilizing plate 26 is an overall "C"-shaped structure, and friction blocks 27 arranged in a matrix are fixedly installed on the lower surface of the stabilizing plate 26, and the friction blocks 27 are set to a rubber material with a rough surface. Fixing bolts 28 for fixing the mounting block 25 are threadedly installed on the left and right sides, and a reset spring 29 fixedly connected to the mounting block 25 is arranged above the mounting block 25, and the reset spring 29 is located on the outside of the pushing frame 24.

[0025] When using the device, first push the device to the welding position through the pushing frame 24. After reaching the position, loosen the fixing bolts 28 on the left and right sides of the mounting block 25, then move the mounting block 25 downward, and use the mounting block 25 to drive the stabilizing plate 26 to move downward synchronously. When the friction block 27 on the lower surface of the stabilizing plate 26 contacts the ground, tighten the fixing bolts 28 again to fix the mounting block 25, and finally use the friction between the friction block 27 and the ground to achieve the purpose of stability and prevent the device from moving at will. Then, start the driving motor 7 according to the welding position, and use the driving motor 7 to drive the lifting screw 6 to rotate. During the rotation of the lifting screw 6, it drives the mounting slide 3 with a threaded installation on its outside to move up and down, and use the mounting slide 3 to move the operating robot arm 4 to a suitable height, and finally remotely control the operating robot arm 4, and use the welding head 5 at the front end of the operating robot arm 4 to perform welding operations on the steel structure.

[0026] Example 2: Please refer to Figure 4-Figure 5 In order to achieve the purpose of back-flushing and cleaning the filter cotton 901, the present embodiment provides the following technical solutions, which specifically disclose: a negative pressure head 8 for absorbing welding fume is fixedly installed on the side of the support column 2, and a purification box 9 for purifying welding fume is fixedly installed in the middle position of the upper surface of the support base 1, a discharge pipe 12 is fixedly installed on the side of the purification box 9, and the filter cotton 901 is fixedly installed inside the purification box 9, and the negative pressure head 8 forms a communication structure with the purification box 9 through a connecting pipe 10, and the connecting pipe 10 is connected to a delivery pump 11 fixedly installed on the upper surface of the purification box 9, and the purification box 9 has a discharge pipe 12 fixedly installed on the side of the purification box 9. A recoil cleaning mechanism is provided, which includes recoil nozzles 13 installed on the left and right sides of the purification box 9 and blocking plates 902 fixedly installed on the lower surface of the purification box 9 at equal intervals. A pressure tank 15 is fixedly installed on the left and right ends of the upper surface of the purification box 9, and a return pipe 14 is fixedly installed at the inlet position of the pressure tank 15, and the return pipe 14 and the purification box 9 are interconnected, the return pipe 14 and the booster pump 16 are interconnected, and a delivery pipe 17 is fixedly installed at the outlet position of the pressure tank 15, and the delivery pipe 17 and the recoil nozzle 13 are interconnected.

[0027] During welding, the delivery pump 11 is turned on, and the delivery pump 11 is used to form a negative pressure at the position of the negative pressure head 8. Under the action of the negative pressure, the smoke generated during the welding process is delivered to the purification box 9 through the connecting pipe 10, and the filter cotton 901 in the purification box 9 is used to filter the smoke. Part of the smoke after filtration is discharged from the exhaust pipe 12, and the other part of the smoke is delivered to the pressure tank 15 through the return pipe 14 under the action of the pressure pump 16. Due to the action of the pressure pump 16, the smoke is pressurized in the pressure tank 15, so more smoke can be stored. Then, the outlet valve of the pressure tank 15 is opened, and the smoke inside it is delivered to the recoil nozzle 13 through the delivery pipe 17 and sprayed out. The pressurized air sprayed by the recoil nozzle 13 is used to back-blow the filter cotton 901 to achieve the purpose of cleaning. The cleaned impurities fall between the blocking plates 902 and are prevented from entering the filter cotton 901 again under the blocking effect of the blocking plates 902.

[0028] Example 3: Please refer to Figure 6-Figure 9 In order to achieve the purpose of expanding the backflush cleaning range, the present embodiment provides the following technical solutions, which specifically disclose: a reciprocating screw 18 is rotatably installed inside the purification box 9, and a threaded connection is penetrated between the recoil nozzle 13 and the reciprocating screw 18, and the position of the recoil nozzle 13 corresponds to the position of the filter cotton 901, a transmission belt 19 is installed at the lower end of the reciprocating screw 18, and a driven bevel gear 20 is installed at the other end of the transmission belt 19, and the driven bevel gear 20 and the driving bevel gear 21 are meshed and connected with each other, the driving bevel gear 21 and the bottom rotating shaft 22 are coaxially fixedly installed, and the bottom rotating shaft 22 is rotatably connected to the supporting base 1, and moving rollers 23 for the overall movement of the device are fixedly installed at the left and right ends of the bottom rotating shaft 22.

[0029] The recoil of the recoil nozzle 13 is when the device is pushed to another welding position after welding of the steel structure is completed. At this time, the moving roller 23 under the support base 1 rotates. During the rotation of the moving roller 23, the active bevel gear 21 is driven to rotate through the bottom rotating shaft 22. At this time, the driven bevel gear 20 meshing with the active bevel gear 21 drives the reciprocating screw 18 to rotate through the transmission belt 19. During the rotation of the reciprocating screw 18, the recoil nozzle 13 installed with a thread penetrating through the outside of the reciprocating screw 18 is driven to move back and forth up and down, thereby expanding the backblowing range and achieving the purpose of comprehensive cleaning of the filter cotton 901.

[0030] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A welding device for assembling steel structures in construction projects, comprising a horizontally arranged support base (1), a support column (2) being fixedly mounted on the front end of the upper surface of the support base (1), characterized in that: The support column (2) is provided with a mounting slide (3) on the front side, and a remote-controlled operating mechanical arm (4) is rotatably mounted on the front side of the mounting slide (3), and a welding head (5) for welding steel structures of construction projects is mounted on the top of the operating mechanical arm (4), a lifting screw rod (6) is rotatably mounted inside the support column (2), and the lifting screw rod (6) is driven by a driving motor (7), and a threaded connection is formed between the mounting slide (3) and the lifting screw rod (6); A negative pressure head (8) for absorbing welding fumes is fixedly mounted on the side of the support column (2), and a purification box (9) for purifying welding fumes is fixedly mounted in the middle of the upper surface of the support base (1), a discharge pipe (12) is fixedly mounted on the side of the purification box (9), a filter cotton (901) is fixedly mounted inside the purification box (9), and the negative pressure head (8) forms a communication structure with the purification box (9) through a connecting pipe (10), the connecting pipe (10) is connected to a delivery pump (11) fixedly mounted on the upper surface of the purification box (9), and a recoil cleaning mechanism is arranged inside the purification box (9); A pushing frame (24) is fixedly mounted on the rear end of the upper surface of the support base (1), and a stabilizing mechanism for fixing the entire device is arranged outside the pushing frame (24).

2. A welding device for assembling steel structures in construction engineering according to claim 1, characterized in that: The recoil cleaning mechanism comprises recoil nozzles (13) installed on the left and right sides of the purification box (9) and blocking plates (902) fixedly installed at equal intervals on the lower surface of the purification box (9).

3. The welding equipment for assembling steel structures in construction engineering according to claim 2 is characterized in that: Pressure tanks (15) are fixedly mounted at the left and right ends of the upper surface of the purification box (9), and a return pipe (14) is fixedly mounted at the inlet position of the pressure tank (15), and the return pipe (14) and the purification box (9) are in communication with each other.

4. The welding equipment for assembling steel structures in construction projects according to claim 3 is characterized in that: The return pipe (14) and the pressure pump (16) are in communication with each other, and a delivery pipe (17) is fixedly installed at the outlet of the pressure tank (15), and the delivery pipe (17) and the recoil nozzle (13) are in communication with each other.

5. The welding equipment for assembling steel structures in construction engineering according to claim 4 is characterized in that: A reciprocating screw (18) is rotatably mounted inside the purification box (9), and a threaded connection is formed between the recoil nozzle (13) and the reciprocating screw (18), and the position of the recoil nozzle (13) corresponds to the position of the filter cotton (901).

6. The welding equipment for assembling steel structures in construction engineering according to claim 5, characterized in that: A transmission belt (19) is installed at the lower end of the reciprocating screw rod (18), and a driven bevel gear (20) is installed at the other end of the transmission belt (19), and the driven bevel gear (20) and the driving bevel gear (21) are meshed and connected with each other.

7. The welding equipment for assembling steel structures in construction engineering according to claim 6, characterized in that: The active bevel gear (21) and the bottom rotating shaft (22) are coaxially fixedly mounted, and the bottom rotating shaft (22) is rotationally connected to the support base (1), and movable rollers (23) for overall movement of the device are fixedly mounted on the left and right ends of the bottom rotating shaft (22).

8. The welding equipment for assembling steel structures in construction projects according to claim 1 is characterized in that: The stabilizing mechanism comprises a mounting block (25) mounted outside the pushing frame (24) and a stabilizing plate (26) fixedly mounted on the outer surface of the mounting block (25), and a through-type sliding structure is formed between the mounting block (25) and the pushing frame (24).

9. The welding equipment for assembling steel structures in construction engineering according to claim 8, characterized in that: The stabilizing plate (26) is in a "C"-shaped structure as a whole, and friction blocks (27) arranged in a matrix are fixedly mounted on the lower surface of the stabilizing plate (26), and the friction blocks (27) are made of a rubber material with a rough surface.

10. A welding device for assembling steel structures in construction engineering according to claim 9, characterized in that: Fixing bolts (28) for fixing the mounting block (25) are threadedly mounted on the left and right sides thereof, and a return spring (29) fixedly connected to the mounting block (25) is disposed above the mounting block (25), and the return spring (29) is located outside the pushing frame (24).

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