Steel bar frame welding equipment

Abstract

The invention relates to the technical field of welding equipment, and specifically discloses a steel bar skeleton welding equipment, comprising a machine body, on which a positioning mechanism, a welding mechanism and two groups of clamping mechanisms are provided, the two groups of clamping mechanisms are respectively used to clamp two steel bars and drive the steel bars to rise and fall relative to the machine body; the positioning mechanism comprises a driving assembly and two positioning pieces, the two positioning pieces are arranged in parallel, the driving assembly drives the two positioning pieces to approach or move away synchronously, the positioning pieces are provided with a fixing part, the fixing part is used to movably abut against the overlapping section of the steel bar, and the driving assembly is rotatably matched with the machine body through an elastic part; the welding mechanism is installed on any one of the positioning pieces, the welding mechanism comprises a bracket, a moving assembly and two welding pieces, the two welding pieces are installed on the bracket, and the moving assembly drives the bracket to slide and match with the positioning piece, and the welding equipment of the invention improves the efficiency and welding effect of steel bar lap welding.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, and in particular to a steel bar skeleton welding equipment. Background Art

[0002] During the construction process, in order to ensure the integrity and strength of the steel bar skeleton, it is usually necessary to perform lap welding on the steel bars. Lap welding overlaps the ends of the steel bars and fixes them together by arc welding or other welding methods to ensure a firm connection between the steel bars. When performing the lap welding operation, in order to ensure that the steel bars can form a continuous force transmission path inside the structure, it is necessary to ensure that the axial directions of the two overlapping steel bars are consistent. When performing the lap welding operation, the ends of the steel bars are first pre-bent to ensure that the axes of the two overlapping steel bars are in the same straight line. In the prior art, when performing lap welding operations on steel bars, the steel bars are mostly positioned manually by holding them, and the manual operation method has the problems of high labor intensity and low work efficiency.

[0003] The patent document with authorization announcement number CN115846961B discloses an automatic welding device for overlapping steel bars, including a clamping assembly tool and an automatic welding device. The clamping assembly tool is used to fix, connect and butt the steel bars. The clamping assembly tool includes a base, a clamp and a pair of clamping adjustment mechanisms. The pair of clamping adjustment mechanisms are respectively located on both sides of the base for adjustably clamping the steel bars. The clamp is arranged in the middle of the base for fixing the steel bars after the butt joint is completed; the automatic welding equipment includes an automatic welding track and an automatic welding trolley moving on the automatic welding track. The automatic welding track is arranged above the clamping assembly tool. The automatic welding trolley is used to clamp the welding gun to move above the steel bars to complete the welding at the overlapping part of the steel bars.

[0004] During the construction process, according to the requirements of the "Concrete Structure Engineering Construction Quality Acceptance Code", the lap length of the steel bars shall not be less than a certain multiple of the steel bar diameter. For example, for HRB335 grade steel bars, the minimum lap length shall not be less than 35d, and for HRB400 grade steel bars, it shall not be less than 40d, where d is the diameter of the steel bar. This leads to certain differences in the lap lengths of steel bars of different diameters. While ensuring that the axial direction of the lapped steel bars is consistent, the bending angles of the lap sections of steel bars of different diameters are also different. The welding device of the above-mentioned patent document clamps the welding end of the steel bar through the group card on the clamp, but it is inconvenient to clamp and fix steel bars of different models according to the bending angles of the welding ends of steel bars of different diameters, and its versatility is low. In addition, when welding the steel bars, double-sided welding is required to ensure the connection strength of the steel bars. The welding device of the above-mentioned patent cannot perform double-sided welding on the steel bars at the same time. After welding on one side, it is necessary to weld the other side of the steel bar, and the work efficiency is low. Summary of the invention

[0005] The present invention provides a steel bar skeleton welding device, aiming to solve the problem that when the welding device in the related art fixes the overlapping section of the steel bar, it is inconvenient to adjust the clamping angle according to the difference in bending angles of the overlapping sections of steel bars of different models.

[0006] A steel bar skeleton welding device of the present invention comprises a machine body, on which a positioning mechanism, a welding mechanism and two groups of clamping mechanisms are provided, wherein the two groups of clamping mechanisms are respectively used to clamp two steel bars and drive the steel bars to rise and fall relative to the machine body;

[0007] The positioning mechanism comprises a driving assembly and two positioning members, the two positioning members are arranged in parallel, the driving assembly drives the two positioning members to move closer or farther away synchronously, the positioning members are provided with a fixing part, the fixing part is used to movably abut against the overlapping section of the steel bar, and the driving assembly is rotatably matched with the machine body through an elastic member;

[0008] The welding mechanism is installed on any one of the positioning members, and comprises a bracket, a moving assembly and two welding members, the two welding members are installed on the bracket, and the moving assembly drives the bracket to slide relative to the positioning member.

[0009] The beneficial effects are as follows: when lap welding is performed on steel bars, it is convenient to fix the lap sections of steel bars of different types, the two sets of clamping mechanisms clamp the two steel bars to be overlapped respectively, and the axes of the two sets of clamping mechanisms are on the same straight line to ensure that the axes of the two overlapped steel bars are consistent, the positioning mechanism adapts to the bending angle of the steel bar lap section to fix the steel bar lap section, the welding mechanism welds the upper and lower sides of the steel bar lap section at the same time, and when fixing the steel bar lap section, the positioning mechanism can automatically adapt to the inclination of the steel bar lap section to adjust the relative angle between the positioning piece and the machine body, complete the fixing operation of the lap sections with different inclination angles, improve the efficiency of welding the steel bar lap section, and ensure the welding effect.

[0010] Preferably, the driving assembly includes a driving member, a gear and two racks, the driving end of the driving member is rotatably connected to the body through the elastic member, the gear is fixed to the driving end of the driving member, the two racks are respectively fixed to the two positioning members, and the two racks are relatively parallel and mesh with the gears at the same time.

[0011] Preferably, the positioning member is further provided with a connecting portion, the connecting portions on the two positioning members are arranged in parallel, and the two racks are respectively vertically fixed to the two connecting portions.

[0012] The beneficial effects are: it is convenient for the two positioning members to adapt to the model of the steel bars to smoothly fix the overlapping sections of the steel bars. When the positioning mechanism fixes the overlapping sections of the steel bars, the driving member is started and the gear is driven to rotate. The two racks pull the two positioning members relatively close together under the meshing action with the gears. After the fixed parts of the two positioning members contact the overlapping sections of the two steel bars, the driving member continues to drive the gear to rotate. The two positioning members drive the driving end of the driving member to deflect relative to the body under the pulling force of the two racks. The two fixing parts gradually adapt to the inclination angle of the overlapping sections of the steel bars. After the two fixing parts are completely fitted with the overlapping sections of the two steel bars respectively, the fixing operation of the overlapping sections can be completed.

[0013] Preferably, the moving assembly includes a driving source and a screw rod, the driving end of the driving source is connected to the screw rod, the screw rod is parallel to the fixing portion, and the bracket slides relative to the screw rod along the length direction of the screw rod.

[0014] Preferably, a limiting member is also provided on the positioning member used to connect the welding mechanism. The limiting member is elastically limitedly connected to the positioning member and slidingly cooperates with the fixing part. The limiting member is movably abutted against the end of the steel bar, and one end of the screw rod is rotationally cooperated with the limiting member.

[0015] The beneficial effects are: it is convenient to position the initial welding position of the welding mechanism. When the two fixing parts are fixed close to the overlapping section of the steel bar and the overlapping section of the steel bar, the part of the pressure rod that slides with the fixed part is squeezed by the steel bar and slides relative to the positioning part, and drives the limit block to move, so that the limit block is separated from the limit groove. The limit part slides relative to the fixed part under the elastic force of the spring and abuts against the end of the steel bar to limit the initial welding position of the welding mechanism when welding the overlapping section.

[0016] Preferably, the positioning member is also provided with a limit block and a pressure rod, the limit block is elastically connected to the positioning member, the limit member is provided with a limit groove which is movably opposite to the limit block, the pressure rod is slidingly matched with the positioning member, one end of the pressure rod is fixed to the limit block, and the other end of the pressure rod is slidingly matched with the fixed part and is used to movably abut against the steel bar.

[0017] Preferably, a connecting piece is also fixed on the limiting member, the bracket is slidably matched with the connecting piece and is elastically connected, the connecting piece is threadedly matched with the screw, and a cam rod is also provided on the fixed part, the driving source drives the cam rod to rotate, and the cam rod is movably abutted against the bracket.

[0018] The beneficial effects are: improving welding strength, pushing the bracket closer to or away from the fixed part when the cam rod rotates, and during the operation of the bracket approaching or moving away from the fixed part, the welded part can swing relative to the overlap section of the steel bar to increase the weld width.

[0019] Preferably, a reset block is also provided on the machine body, and the upper end of the limit member is slidably abutted against the reset block, with the side facing the steel bar lap section as the front side, and the reset block is used to abut the end face of the limit member and tilt from front to back in a direction away from the axial direction of the steel bar.

[0020] Preferably, two calibration pieces are further provided on the machine body, the two calibration pieces are adjustably fixed to the machine body, and the two calibration pieces are respectively used to abut against the ends of two steel bars.

[0021] The beneficial effects are: ensuring that the steel bars move smoothly into position relative to the clamping parts, and the two steel bars move relative to the clamping parts until the ends of the steel bars abut against the calibration parts and then stop moving. In actual work, the relative fixed position of the calibration part and the machine body can be adjusted according to the model differences of different batches of steel bars to adapt to the calibration operation of the positions of different models of steel bars.

[0022] Preferably, the clamping mechanism includes a clamping member and a lifting member, the clamping member is used to movably clamp the steel bars, the protruding end of the lifting member is connected to the clamping member, the clamping member is also provided with a motor and a driving wheel, the driving end of the motor is connected to the driving wheel, and the driving wheel is in friction contact with the steel bars.

[0023] The beneficial effects of the present invention are:

[0024] (1) When lap welding steel bars, it is convenient to fix the lap sections of steel bars of different types. Two sets of clamping mechanisms clamp the two steel bars to be overlapped respectively. The axes of the two sets of clamping mechanisms are on the same straight line to ensure that the axes of the two overlapped steel bars are consistent. The positioning mechanism fixes the lap section of the steel bar according to the bending angle of the lap section of the steel bar. The welding mechanism welds the upper and lower sides of the lap section of the steel bar at the same time. When fixing the lap section of the steel bar, the positioning mechanism can automatically adapt to the inclination of the lap section of the steel bar to adjust the relative angle between the positioning member and the machine body, thereby completing the fixing operation of the lap sections with different inclination angles, improving the efficiency of welding the lap section of the steel bar, and ensuring the welding effect.

[0025] (2) It is convenient to locate the initial welding position of the welding mechanism. When the two fixing parts are fixed close to the overlapping section of the steel bar and the overlapping section of the steel bar, the sliding matching part of the pressure rod and the fixing part is squeezed by the steel bar and slides relative to the positioning part, and drives the limit block to move, so that the limit block is separated from the limit groove. The limit part slides relative to the fixed part under the elastic force of the spring and abuts against the end of the steel bar to limit the initial welding position of the welding mechanism when welding the overlapping section. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0027] Figure 2 It is a schematic diagram of the overall structure of the present invention from another perspective.

[0028] Figure 3 It is a schematic diagram of the structure inside the body of the present invention.

[0029] Figure 4 It is a structural schematic diagram of the positioning mechanism and the welding mechanism in the present invention.

[0030] Figure 5 It is a structural schematic diagram of the connection between the welding mechanism and the positioning member in the present invention.

[0031] Figure 6 It is a structural schematic diagram of the connection between the pressure rod, the limit block and the positioning member in the present invention.

[0032] Reference numerals:

[0033] 1. Machine body; 11. Calibration part; 12. Reset block; 2. Lifting part; 21. Clamping part; 3. Driving part; 31. Elastic part; 32. Gear; 33. Rack; 34. Positioning part; 341. Connecting part; 342. Fixing part; 343. Limiting block; 344. Pressure rod; 4. Limiting part; 41. Connecting part; 42. Bracket; 421. Welding part; 43. Screw rod; 44. Cam rod; 45. Driving source; 5. Rebar. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0035] like Figures 1 to 3 As shown, the steel frame welding equipment of the present invention includes a body 1, on which a positioning mechanism, a welding mechanism and two groups of clamping mechanisms are provided. The two groups of clamping mechanisms are respectively arranged at opposite ends of the body 1. The two groups of clamping mechanisms respectively clamp two steel bars 5 to be overlapped. The axes of the two groups of clamping mechanisms are on the same straight line. The positioning mechanism fixes the overlapped section to adapt to the bending angle of the overlapped section of the steel bar 5, and the welding mechanism welds the upper and lower sides of the overlapped section of the steel bar 5 at the same time.

[0036] The clamping mechanism includes a clamping member 21 and a lifting member 2, the clamping member 21 is used to flexibly clamp the steel bar 5, wherein the clamping member 21 can be composed of two claws, both of which are connected to a cylinder, and the cylinder drives the two claws to move closer or farther synchronously to achieve the clamping and releasing operations of the steel bar 5, and the lifting member 2 can also be a cylinder, the protruding end of the lifting member 2 is connected to the clamping member 21, and the protruding end of the lifting member 2 is provided with a connecting frame, and the cylinders connecting the two claws are installed on the connecting frame; when lap welding the steel bar 5, first place the steel bar 5 on the ground or other operating platform so that the lap section of the steel bar 5 and the positioning mechanism are roughly corresponding in the longitudinal direction, and then start the lifting member 2 to work, and drive the connecting frame to move down, and clamp the steel bar 5 through the two claws. Because the axial directions of the two sets of clamping mechanisms are on the same straight line, it can be ensured that after the two sets of clamping mechanisms clamp the two steel bars 5, the axial directions of the two steel bars 5 are on the same straight line.

[0037] like Figure 3 and Figure 4 As shown, after the clamping mechanism clamps the steel bar 5, it is also necessary to butt the overlapping sections of the steel bar 5. Therefore, it is necessary to push the two steel bars 5 to move after the clamping mechanism completes the clamping action so that the two bent overlapping sections of the steel bars 5 can be butt. The clamping member 21 is also provided with a motor and a driving wheel. The driving end of the motor is connected to the driving wheel. The driving wheel extends into the claw and makes frictional contact with the steel bar 5. When the motor is working, it drives the driving wheel to rotate. When the driving wheel rotates, it further pushes the steel bar 5 to move relative to the clamping member 21 under the action of friction. In order to ensure that the steel bar 5 moves smoothly relative to the clamping member 21, two calibration members 11 are further provided on the machine body 1. The two calibration members 11 are adjustably fixed to the machine body 1. The two calibration members 11 are respectively used to abut against the ends of the two steel bars 5. The calibration members 11 It can be an "L" shape, with the calibration piece 11 at the bottom of the machine body 1. The two steel bars 5 move relative to the clamping piece 21 until the ends of the steel bars 5 abut against the calibration piece 11 and then stop moving. In actual work, the relative fixed position of the calibration piece 11 and the machine body 1 can be adjusted according to the model differences of different batches of steel bars 5 to adapt to the calibration operation of the positions of different models of steel bars 5. The adjusting piece can slide with the machine body 1, and a fastening nut is threadedly connected to the machine body 1. After the calibration piece 11 moves into place relative to the machine body 1, the relative position of the adjusting piece and the machine body 1 can be fixed by screwing the fastening nut. After the calibration operation of the two steel bars 5 is completed, the lifting piece 2 is started to drive the two steel bars 5 to move upward, and the positioning mechanism further fixes the overlapping sections of the two steel bars 5.

[0038] The positioning mechanism includes a driving component and two positioning members 34. The two positioning members 34 are arranged in parallel. The driving component 3 component drives the two positioning members 34 to move closer or farther away synchronously. The positioning member 34 is provided with a fixing portion 342 and a connecting portion 341. The fixing portion 342 is used to movably abut against the overlapping section of the steel bar 5. The driving component is rotatably matched with the body 1 through the elastic member 31. The driving component includes a driving member 3, a gear 32 and two racks 33. The driving member 3 can be a motor. The driving end of the driving member 3 is rotatably connected with the body 1 through the elastic member 31. The middle elastic member 31 is a torsion spring, the gear 32 is fixed to the driving end of the driving member 3, the two racks 33 are respectively fixed to the two positioning members 34, the two racks 33 are relatively parallel and mesh with the gear 32 at the same time, the connecting parts 341 on the positioning members 34 are arranged in parallel, the two racks 33 are respectively vertically fixed to the two connecting parts 341, and a guide groove is provided on the connecting part 341, the rack 33 is slidably matched with the guide groove, and the guide groove is used to ensure that the two positioning members 34 remain in a relatively parallel state as the two racks 33 approach or move away from each other.

[0039] The steel bar 5 moves up with the clamping mechanism until its overlapping section is opposite to the fixing portion 342 and then stops moving up. In the initial state of the positioning mechanism, the two positioning members 34 are away from the overlapping section of the steel bar 5, and the length direction of the fixing portions 342 on the two positioning members 34 is parallel to the axial direction of the steel bar 5. When the positioning mechanism fixes the overlapping section of the steel bar 5, the driving member 3 is started and drives the gear 32 to rotate. The two racks 33 pull the two positioning members 34 closer to each other under the meshing action with the gear 32. After the fixing portions 342 of the two positioning members 34 contact the overlapping sections of the two steel bars 5, the driving member 3 continues to drive the gear 32 to rotate, and the two positioning members 34 drive under the pulling force of the two racks 33 The driving end of the driving member 3 is deflected relative to the body 1, and the two fixing parts 342 gradually adapt to the inclination angle of the overlapping section of the steel bar 5. After the two fixing parts 342 are completely fitted with the overlapping sections of the two steel bars 5 respectively, the positioning mechanism completes the fixing operation of the overlapping section of the steel bar 5. When fixing the overlapping section of the steel bar 5, the positioning mechanism can automatically adapt to the inclination of the overlapping section of the steel bar 5 to adjust the relative angle between the positioning member 34 and the body 1, and complete the fixing operation of the overlapping sections with different inclination angles. In order to further enhance the fixing strength of the fixing part 342 to the overlapping section of the steel bar 5, an arc groove can be provided on the fixing part 342, and the fixing part 342 fixes the overlapping section of the steel bar 5 through the arc groove thereon.

[0040] like Figures 3 to 6As shown, the welding mechanism is installed on any positioning member 34, the welding mechanism includes a bracket 42, a moving assembly and two welding members 421, the two welding members 421 are installed on the bracket 42, the moving assembly drives the bracket 42 to slide with the positioning member 34, the moving assembly includes a driving source 45, a screw rod 43 and a guide rod, the screw rod 43 is rotatably matched with the fixing portion 342, and the screw rod 43 is arranged parallel to the fixing portion 342, the driving end of the driving source 45 is connected to the screw rod 43, the driving source 45 drives the screw rod 43 to rotate, and the bracket 42 is moved along the length of the screw rod 43. When the driving source 45 drives the screw rod 43 to rotate, the bracket 42 is driven to slide back and forth along the screw rod 43. The two welding parts 421 on the bracket 42 weld the upper and lower sides of the overlapping section of the steel bar 5 at the same time. In order to facilitate the welding of the overlapping parts of steel bars 5 of different types, the two welding parts 421 can be set with the bracket 42 in an adjustable fixing manner. Specifically, the relative fixed position of the welding part 421 and the bracket 42 can be adjusted according to the type of steel bar 5. The connection method between the welding part 421 and the bracket 42 includes but is not limited to a clamping connection and a threaded connection.

[0041] To facilitate positioning of the initial welding position of the welding mechanism, a limiting member 4 is also provided on the positioning member 34 used to connect the welding mechanism. The limiting member 4 is elastically limitedly connected to the positioning member 34 through a spring, the limiting member 4 slides with the fixing portion 342, and the limiting member 4 is movably abutted against the end of the steel bar 5. A limiting block 343 and a pressure rod 344 are also provided on the positioning member 34. The limiting block 343 is elastically connected to the positioning member 34, and a limiting groove movably opposite to the limiting block 343 is provided on the limiting member 4. The pressure rod 344 slides with the positioning member 34, one end of the pressure rod 344 is fixed to the limiting block 343, and the other end of the pressure rod 344 slides with the fixing portion 342 and is used to movably abut against the steel bar 5.

[0042] In the initial state, the limit groove and the limit block 343 are opposite to each other. The limit block 343 is inserted into the limit groove under the action of elasticity and limits the relative position of the limit member 4 and the positioning member 34. At this time, the spring connecting the limit member 4 is in a compressed and force-accumulated state. When the two fixing parts 342 are close to the overlapping section of the steel bar 5 and fixed to the overlapping section of the steel bar 5, the part of the pressure rod 344 that slides with the fixing part 342 is squeezed by the steel bar 5 and moves relative to the positioning member 34. When the limit block 343 moves, it disengages from the limit groove. Under the action of the elastic force of the spring, the limit member 4 slides relative to the fixing part 342 and abuts against the end of the steel bar 5 to limit the initial welding position of the welding mechanism when welding the overlapping section. Then, the driving source 45 is started to work, and the two welding parts 421 move with the bracket 42 to weld the gap of the overlapping section of the steel bar 5.

[0043] The position of the welding mechanism and the limit member 4 can be reset manually or by the reset block 12. The upper end of the limit member 4 slides against the reset block 12, with the side facing the overlapping section of the steel bar 5 as the front side. The reset block 12 is used to abut the end face of the limit member 4 and tilts from front to back away from the axial direction of the steel bar 5. After completing a lap welding operation of the steel bar 5, the driving member 3 reverses and drives the two positioning members 34 to separate. Under the extrusion action of the inclined side of the reset block 12, the limit member 4 gradually moves relative to the positioning member 34 until the limit groove on the limit member 4 is opposite to the limit block 343 on the positioning member 34, and the limit block 343 is inserted into the limit groove to limit the position of the limit member 4.

[0044] In order to ensure the welding strength, when welding the overlapping section of the steel bar 5, it is necessary to make the solder fully fill the gap of the overlapping section of the steel bar 5 to ensure the width of the weld. A connecting piece 41 is also fixed on the limiter 4. The bracket 42 is slidably matched with the connecting piece 41 and elastically connected. The connecting piece 41 is threadedly matched with the screw rod 43. When the connecting piece 41 is threadedly connected with the screw rod 43, the bracket 42 is not connected to the screw rod 43. A cam rod 44 is also provided on the fixing portion 342. The driving source 45 drives the cam rod 44 to rotate. The cam rod 44 and the bracket 42 are movably abutted. The source 45 drives the screw rod 43 and the cam rod 44 to rotate at the same time. The ends of the screw rod 43 and the cam rod 44 can fix the gear parts at the same time, and the two gear parts are meshed. The driving end of the driving source 45 is fixed to any gear part. In addition, the driving source 45 can also synchronously drive the screw rod 43 and the cam rod 44 to rotate through a transmission belt. When the cam rod 44 rotates, it pushes the bracket 42 to approach or move away from the fixed part 342. When the bracket 42 approaches or moves away from the fixed part 342, the welding part 421 can swing relative to the overlap section to increase the weld width.

[0045] The steel bar skeleton welding equipment provided by the present invention is convenient for quickly fixing overlapping sections of steel bars of different types when performing overlap welding on steel bars, and automatically adjusts the initial welding position, thereby improving the automation of overlap welding operations and ensuring welding quality and efficiency.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0047] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A steel frame welding device, comprising a body, characterized in that: The machine body is provided with a positioning mechanism, a welding mechanism and two sets of clamping mechanisms, which are used to clamp two steel bars respectively and drive the steel bars to rise and fall relative to the machine body; The positioning mechanism includes a driving component and two positioning members, the two positioning members are arranged in parallel, the driving component drives the two positioning members to move closer or farther synchronously, the positioning members are provided with a fixing part, the fixing part is used to movably abut with the overlapping section of the steel bar, the driving component is rotatably matched with the machine body through an elastic member, the driving component includes a driving member, a gear and two racks, the driving end of the driving member is rotatably connected with the machine body through the elastic member, the gear is fixed to the driving end of the driving member, the two racks are respectively fixed to the two positioning members, the two racks are relatively parallel and mesh with the gears at the same time; The welding mechanism is installed on any positioning member, and the welding mechanism includes a bracket, a moving assembly and two welding members, the two welding members are installed on the bracket, the moving assembly drives the bracket to slide relative to the positioning member, the moving assembly includes a driving source and a screw rod, the driving end of the driving source is connected to the screw rod, the screw rod is parallel to the fixed part, and the bracket slides relative to the screw rod along the length direction of the screw rod; A limiting piece is also provided on the positioning piece for connecting the welding mechanism. The limiting piece is elastically limitedly connected to the positioning piece and slidingly cooperates with the fixing part. The limiting piece is movably abutted against the end of the steel bar, and one end of the screw rod is rotationally cooperated with the limiting piece.

2. The steel bar skeleton welding equipment according to claim 1, characterized in that: The positioning piece is also provided with a connecting portion, the connecting portions on the two positioning pieces are arranged in parallel, and the two racks are respectively fixed vertically to the two connecting portions.

3. The steel bar skeleton welding equipment according to claim 1, characterized in that: The positioning piece is also provided with a limit block and a pressure rod. The limit block is elastically connected to the positioning piece. The limit piece is provided with a limit groove which is movably opposite to the limit block. The pressure rod is slidably matched with the positioning piece. One end of the pressure rod is fixed to the limit block, and the other end of the pressure rod is slidably matched with the fixed part and is used to movably abut against the steel bar.

4. The steel bar skeleton welding equipment according to claim 3 is characterized in that: A connecting piece is also fixed on the limiting piece, the bracket and the connecting piece are slidably matched and elastically connected, the connecting piece is threadedly matched with the lead screw, and a cam rod is also provided on the fixing part, the driving source drives the cam rod to rotate, and the cam rod is movably abutted against the bracket.

5. The steel bar skeleton welding equipment according to claim 3, characterized in that: The machine body is also provided with a reset block, and the upper end of the limiter is slidably abutted against the reset block, with the side facing the steel bar overlap section as the front side, and the reset block is used to abut the end face of the limiter and tilt from front to back away from the axial direction of the steel bar.

6. The steel bar skeleton welding equipment according to claim 1, characterized in that: The machine body is also provided with two calibration pieces, which are adjustably fixed to the machine body and are used to abut against the ends of two steel bars respectively.

7. The steel bar skeleton welding equipment according to claim 1, characterized in that: The clamping mechanism includes a clamping member and a lifting member. The clamping member is used to movably clamp the steel bar. The protruding end of the lifting member is connected to the clamping member. The clamping member is also provided with a motor and a driving wheel. The driving end of the motor is connected to the driving wheel, and the driving wheel is in friction contact with the steel bar.

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