CN112338394A - Splicing and welding device and method for H-shaped steel - Google Patents
Splicing and welding device and method for H-shaped steel Download PDFInfo
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- CN112338394A CN112338394A CN202011177334.8A CN202011177334A CN112338394A CN 112338394 A CN112338394 A CN 112338394A CN 202011177334 A CN202011177334 A CN 202011177334A CN 112338394 A CN112338394 A CN 112338394A
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- 238000003466 welding Methods 0.000 title claims abstract description 138
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 48
- 239000010959 steel Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 106
- 238000006073 displacement reaction Methods 0.000 claims description 75
- 238000005096 rolling process Methods 0.000 claims description 39
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000033001 locomotion Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Abstract
The invention discloses an assembling and welding device and method for H-shaped steel, which comprises a positioning bracket and opposite positioning units, wherein the opposite positioning units are symmetrically arranged on the positioning bracket, and inverted T-shaped clamping spaces are formed between the opposite positioning units; the inverted T-shaped clamping space comprises a horizontal clamping part and a vertical clamping part, the flange plate to be welded is horizontally arranged in the horizontal clamping part, and the web plate to be welded is vertically arranged in the vertical clamping part; the welding mechanical arms are symmetrically arranged at the discharge port ends of the opposite positioning mechanisms; the invention forms an inverted T-shaped clamping space through symmetrical opposite positioning units; the horizontal clamping part is used for realizing rapid and accurate clamping and positioning of the flange plate to be welded, the vertical clamping part is used for realizing rapid and accurate clamping and positioning of the web plate to be welded, manual measurement and alignment are avoided, the assembling and positioning accuracy of the flange plate to be welded and the web plate to be welded is high, and the distortion and deformation of the web plate to be welded are avoided; the welding mechanical arm is adopted for welding, the flexibility is high, and the overall efficiency and the yield of the splicing welding are improved.
Description
Technical Field
The invention belongs to the technical field of H-shaped steel assembling and welding, and particularly relates to an assembling and welding device and method for H-shaped steel.
Background
With the continuous development of the industrialization process, the fields of bridges, buildings and the like are rapidly advanced, and different types of H-shaped steel are related and used in the field of the large-scale application of steel structures; in the assembling and welding process of the H-shaped steel, two flange plates are required to be welded and fixed at two ends of a web plate, and the reasonable positioning of the flange plates and the web plate is very important operation; in the prior art, the positioning and welding of the H-shaped steel are complex, and the overall efficiency is low; at present, the H-shaped steel is assembled and positioned mainly by measuring and aligning by a front-line worker, and then clamping and spot welding are carried out by a hydraulic arm, so that the operation is inconvenient, the positioning is inaccurate, and the bending deformation of a vertical steel plate is easily caused by the clamping of the hydraulic arm, and the positioning and the alignment of the plate are more difficult; if the spot welding is too much, the cleaning of the auxiliary material is complicated, and the integral precision and strength of the H-shaped steel are greatly influenced; too few spot welding can lead to H shaped steel easy deformation fracture when follow-up whole welding, causes the welding inefficacy, and the product is scrapped.
Disclosure of Invention
Aiming at the technical problems in the prior art, the invention provides an assembling and welding device and method for H-shaped steel, and aims to solve the technical problems of complex positioning, low efficiency and low yield in the existing assembling and welding process of the H-shaped steel.
In order to achieve the purpose, the invention adopts the technical scheme that:
the invention provides an assembling and welding device for H-shaped steel, which comprises opposite positioning mechanisms and welding mechanical arms; the opposite positioning mechanism comprises a positioning bracket and opposite positioning units, the opposite positioning units are symmetrically arranged on the positioning bracket, and an inverted T-shaped clamping space is formed between the opposite positioning units;
the inverted T-shaped clamping space comprises a horizontal clamping part and a vertical clamping part, the flange plate to be welded is horizontally arranged in the horizontal clamping part, the web plate to be welded is vertically arranged in the vertical clamping part, and the flange plate to be welded and the web plate to be welded can horizontally and synchronously move in the inverted T-shaped clamping space; and the welding mechanical arms are symmetrically arranged at the discharge port end of the opposite positioning mechanism and are used for welding the flange plates to be welded and the webs to be welded.
Furthermore, the opposite positioning unit comprises an opposite displacement block, a plurality of guide grooved wheels, a crankshaft and a guide flat wheel; the opposite displacement block is arranged on the positioning bracket and is parallel to the axis of the flange plate to be welded or the web plate to be welded;
the guide grooved wheels are arranged on the opposite displacement blocks at intervals, the lower ends of the guide grooved wheels are rotationally connected with the opposite displacement blocks, and the rotating axes of the guide grooved wheels are vertically arranged; the flange plates to be welded are horizontally arranged between corresponding guide grooved wheels in the two opposite positioning units, and the distance between the corresponding guide grooved wheels is adapted to the width of the flange plates to be welded;
a crankshaft is arranged between every two adjacent guide grooved wheels, the lower end of the crankshaft is connected with the opposite displacement block, the upper end of the crankshaft is vertically arranged, and the guide flat wheels are rotatably sleeved at the upper end of the crankshaft; the web to be welded is vertically arranged between the corresponding guide flat wheels in the two opposite positioning units, and the distance between the corresponding guide flat wheels is adapted to the thickness of the web to be welded.
Furthermore, the opposite positioning unit also comprises a sliding block which is arranged between the crankshaft and the opposite displacement block; the upper end of the opposite displacement block is provided with a horizontal sliding chute, and the axis of the horizontal sliding chute is vertical to the axis of the flange plate to be welded or the web plate to be welded; the lower end of the sliding block is arranged in the horizontal sliding groove of the opposite displacement block in a sliding mode, and the upper end of the sliding block is fixedly connected with the lower end of the crankshaft.
Furthermore, the opposite displacement blocks are connected with the positioning support in a sliding mode, and the sliding direction of the opposite displacement blocks is perpendicular to the axis of the flange plate to be welded or the web plate to be welded.
Furthermore, the opposite positioning mechanism also comprises a ball screw and two guide rods; the ball screw is horizontally arranged on the positioning bracket, and two ends of the ball screw are rotationally connected with the positioning bracket; the two guide rods are symmetrically arranged on two sides of the ball screw, and the guide rods are parallel to the ball screw;
one end of the ball screw is provided with left-handed threads, and the other end of the ball screw is provided with right-handed threads; the two opposite positioning units are symmetrically arranged at two ends of the ball screw, wherein an opposite displacement block in one opposite positioning unit is positioned on the left-handed thread, and an opposite displacement block in the other opposite positioning unit is positioned on the right-handed thread; the ball screw is arranged in the middle of the opposite displacement block, and two ends of the opposite displacement block are respectively sleeved on the two guide rods in a sliding mode.
Furthermore, the end part of the ball screw is provided with a hand-operated wheel, and the hand-operated wheel is connected with the ball screw through a key.
The gantry rolling mechanism is arranged between the opposite positioning mechanism and the welding mechanical arm; the gantry rolling mechanism comprises a gantry frame, a hydraulic rod and a guide roller, and the gantry frame is fixedly provided with a discharge port end of the opposite positioning mechanism; the hydraulic rod is vertically arranged right above the web plate to be welded, and the upper end of the hydraulic rod is fixedly connected with a cross beam of the portal frame; the guide roller rotates and sets up the lower extreme at the hydraulic stem, and guide roller's axis of rotation level sets up, guide roller's lower surface with treat welding web in close contact with.
Furthermore, the gantry rolling mechanism also comprises two guide rods and guide plates, the two guide rods are vertically arranged on two sides of the hydraulic rod in parallel, and the guide rods are fixed with the gantry; the guide plate is horizontally arranged, and two ends of the guide plate are respectively sleeved on the two guide rods in a sliding manner; the lower end of the hydraulic rod is fixedly arranged in the middle of the guide plate in a penetrating mode.
Further, the device also comprises a conveying mechanism, wherein the conveying mechanism is arranged at the feed inlet end of the opposite positioning mechanism; the conveying mechanism comprises a conveying bracket and a plurality of conveying rollers, and the conveying bracket is positioned at the feed inlet end of the opposite positioning mechanism; the plurality of conveying rollers are arranged on the conveying support at intervals in parallel, and the rolling axes of the conveying rollers are vertical to the axes of the flange plates to be welded or the webs to be welded.
The invention also provides an assembling and welding method for the H-shaped steel, which comprises the following steps:
firstly, adjusting the distance between two opposite positioning units to ensure that the width of a horizontal clamping part is adapted to the width of a flange plate to be welded and the width of a vertical clamping part is adapted to the thickness of a web plate to be welded;
then, hoisting the first flange plate to be welded to the horizontal clamping part, and hoisting the web plate to be welded to the vertical clamping part; after aligning the first flange plate to be welded with the web plate to be welded, synchronously feeding horizontally to a discharge port end of the opposite positioning mechanism; welding and fixing a first flange plate to be welded at the discharge port end of the opposite positioning mechanism and a web plate to be welded together by using a welding mechanical arm to form a T-shaped part;
finally, hoisting the second flange plate to be welded to the horizontal clamping part, hoisting the T-shaped part to the vertical clamping part, and clamping the web plate to be welded of the T-shaped part in the vertical clamping part; after aligning the second flange plate to be welded with the web plate to be welded, synchronously feeding horizontally to a discharge port end of the opposite positioning mechanism; and welding and fixing a second flange plate to be welded at the discharge port end of the opposite positioning mechanism and the T-shaped part together by using a welding mechanical arm to obtain the spliced and welded H-shaped steel.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides an assembling and welding device for H-shaped steel, which is characterized in that two opposite positioning units are symmetrically arranged on a positioning bracket, and an inverted T-shaped clamping space is formed by the two symmetrical opposite positioning units; the flange plate to be welded is quickly and accurately clamped and positioned by utilizing the horizontal clamping part of the inverted T-shaped clamping space, the web plate to be welded is quickly and accurately clamped and positioned by utilizing the vertical clamping part of the inverted T-shaped clamping space, manual measurement and alignment are avoided, the structure is simple, the assembling and positioning accuracy of the flange plate to be welded and the web plate to be welded is high, the clamping stability is good, and the distortion and deformation of the web plate to be welded caused by clamping the web plate to be welded by adopting a hydraulic arm are avoided; the welding mechanical arm is adopted to weld the web plate to be welded and the flange plate to be welded, the welding mechanical arm is high in flexibility, rapid and effective welding of the piece to be welded is achieved, and the overall efficiency and the yield of assembly welding are improved.
Furthermore, the flange plates to be welded are horizontally arranged between the guide grooved wheels by arranging the guide grooved wheels on the opposite displacement blocks, so that the accurate clamping of the flange plates to be welded is realized, and the stable feeding of the flange plates to be welded is realized; through set up bent axle and direction flat wheel between the direction sheave, will treat that the vertical setting of web is between the direction flat wheel, realized treating the accurate centre gripping of welding the web to realized treating the steady feeding of welding the web, guaranteed that the welding process treats the flange board and treats the quick location of welding the web, positioning accuracy is higher, and the assembly effect is better, and the yield is high.
Furthermore, the sliding blocks are arranged between the crankshaft and the opposite displacement blocks and are arranged on the opposite displacement blocks in a sliding manner, so that the fine adjustment of the positions of the crankshaft and the guide flat wheel is realized, and the accuracy and flexibility of the positioning of the web to be welded are improved; simultaneously, can satisfy the centre gripping effect to different thickness webs, enlarged assembly welding set's application range.
Furthermore, sliding connection is adopted between the opposite displacement blocks and the positioning support, so that the adjustment of the distance between the two opposite displacement blocks is realized, the rapid and stable adjustment of the distance between the guide grooved wheels or the guide flat wheels in the two opposite positioning units is realized, the clamping and positioning of the webs to be welded of different widths and different thicknesses can be met, and the application range is wider.
Furthermore, the opposite displacement block is connected with the positioning bracket in a sliding way through a ball screw and a guide rod, so that the opposite displacement block is ensured to move quickly and stably; set up left-handed screw thread and right-handed screw thread respectively with ball's both ends, realized being close to each other or keeping away from the regulation to two displacement blocks in opposite directions through rotating ball, realized the steady quick adjustment to the interval between the displacement block in opposite directions.
Furthermore, the end part of the ball screw is provided with the hand-operated wheel, the ball screw is driven to rotate by the hand-operated wheel, and the ball screw is simple in structure and convenient to operate.
Further, through setting up longmen rolling mechanism, with the vertical setting of hydraulic stem treat welding web directly over to set up guide roller at the lower extreme of hydraulic stem, utilize hydraulic stem cooperation guide roller to treat welding web's the centre gripping of pressing down, guaranteed to treat welding web and treat welding flange plate's accurate positioning of welding limit, the realization is to the whole centre gripping of treating that the weldment is assembled firm, has avoided welding process to cause weldment positioning failure and distortion, has improved the yield.
Furthermore, the guide rod and the guide plate are arranged in the gantry rolling mechanism, so that the stability of vertical operation of the hydraulic rod is ensured, the phenomenon that the hydraulic rod moves away in the pressing process is avoided, and the reliability and the stability of positioning and assembling of weldments are improved.
Furthermore, the conveying mechanism is arranged at the feed port end of the opposite positioning mechanism, and the conveying mechanism is used for carrying the web plate to be welded and the flange plate to be welded in a production line manner, so that the automatic feeding of the web plate to be welded and the flange plate to be welded is realized, the automation degree of the device is effectively improved, and the production cost is reduced.
The invention also provides an assembling and welding method for the H-shaped steel, which is simple in operation process, can realize quick and accurate positioning of the web plates to be welded through the vertical clamping part of the inverted T-shaped clamping space, avoids manual measurement and alignment, is simple in structure, has good clamping stability, and avoids distortion of the web plates to be welded; the welding mechanical arm is adopted to weld the web plate to be welded and the flange plate to be welded, the welding mechanical arm is high in flexibility, rapid and effective welding of the piece to be welded is achieved, and the overall efficiency and the yield of assembly welding are improved.
In conclusion, the assembling and welding device and method for the H-shaped steel realize the rapid movement of the opposite displacement blocks by rotating the hand-operated wheel and relying on the rotation motion of the ball screw; the guide grooved wheels on the opposite displacement blocks are used for realizing the rapid positioning of the flange plates to be welded; the distance which is suitable for the thickness of the web to be welded is kept between the guide flat wheels at the two sides of the web to be welded through fine adjustment of the sliding block, and finally the accurate positioning of the web to be welded is realized; the whole to-be-welded part is firmly pressed and clamped by the gantry rolling mechanism, so that positioning failure and distortion deformation of the to-be-welded part in the welding process are avoided; the welding mechanical arm is fixedly arranged on the rack, and the flexible rotation of the welding mechanical arm is utilized, so that the rapid welding of the workpiece to be welded is realized, and the overall efficiency and yield of the splicing welding are improved; compared with the traditional welding equipment, the manual measurement alignment time is saved, the problem of clamping deformation of the traditional hydraulic arm is avoided, and the welding effect advantage is more obvious.
Drawings
FIG. 1 is a schematic view of the overall structure of the splicing and welding device according to the present invention;
FIG. 2 is a schematic structural view of a positioning mechanism facing each other in the assembly welding device according to the present invention;
FIG. 3 is a schematic view of a positioning unit in the assembly welding apparatus according to the present invention;
FIG. 4 is a schematic view of a connection structure of a ball screw and a hand wheel in the splicing welding device;
fig. 5 is a schematic structural diagram of a gantry rolling mechanism in the assembly welding device.
The device comprises a conveying mechanism 1, an opposite positioning mechanism 2, a gantry rolling mechanism 3, a welding mechanical arm 4, a rack 5, a flange plate to be welded 6 and a web plate to be welded 7, wherein the conveying mechanism is arranged on the gantry rolling mechanism; 11 a conveying bracket and 12 a conveying roller; 21 positioning brackets, 22 opposite positioning units, 23 ball screws, 24 guide rods, 25 hand-operated wheels, 26 bearing seats and 27 rolling bearings; 221 opposite displacement block, 222 guide sheave, 223 sliding block, 224 crankshaft, 225 guide flat wheel; 31 gantry, 32 hydraulic rods, 33 guide rods, 34 guide plates and 35 guide rollers.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more apparent, the following embodiments further describe the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in the accompanying drawings 1-5, the invention provides an assembling and welding device for H-shaped steel, which comprises a conveying mechanism 1, an opposite positioning mechanism 2, a gantry rolling mechanism 3, a welding mechanical arm 4 and a rack 5, wherein the conveying mechanism 1, the opposite positioning mechanism 2, the gantry rolling mechanism 3 and the welding mechanical arm 4 are sequentially fixed on the rack 5; the opposite positioning mechanism 2 is used for clamping and positioning the workpiece to be welded; the parts to be welded comprise flange plates 6 to be welded and webs 7 to be welded; the conveying mechanism 1 is arranged at the feed port end of the opposite positioning mechanism 2, the flange plate 6 to be welded and the web plate 7 to be welded are horizontally arranged on the conveying mechanism 1, and horizontal feeding of the flange plate 6 to be welded and the web plate 7 to be welded is realized by utilizing horizontal conveying of the conveying mechanism 1; the welding mechanical arms 4 are symmetrically arranged at the discharge port end of the opposite positioning unit 2 and are used for welding the flange plate 6 to be welded and the web plate 7 to be welded; the gantry rolling mechanism 3 is arranged between the opposite positioning mechanism 2 and the welding mechanical arm 4, and the gantry rolling mechanism 3 is used for pressing and clamping the web 6 to be welded, so that the accurate positioning of the web to be welded and the welding edge of the flange plate to be welded is ensured.
The conveying mechanism 1 comprises a conveying support 11 and a plurality of conveying rollers 12, the conveying support 11 is fixedly arranged at the front end of the rack 5 and is positioned at the feed port end of the opposite positioning mechanism 2, the plurality of conveying rollers 12 are arranged on the conveying support 11 in parallel at intervals, and the rolling axis of each conveying roller 12 is perpendicular to the axis of the flange plate 6 to be welded or the web plate 7 to be welded; the end part of the transmission roller 12 is connected with a power mechanism; the power mechanism drives the transmission roller 12 to horizontally rotate, and the transmission roller 12 can drive the flange plate 6 to be welded or the web plate 7 to be welded to feed to the opposite positioning mechanism 2 in the horizontal rotating process.
The opposite positioning mechanism 2 comprises a positioning bracket 21, two opposite positioning units 22, a ball screw 23, two guide rods 24, a hand-operated wheel 25, a bearing seat 26 and a rolling bearing 27; the positioning support 21 is horizontally fixed in the middle of the rack 5, and the two opposite positioning units have the same structure and are symmetrically arranged on the positioning support 21; an inverted T-shaped clamping space is formed between the two opposite positioning units 22, the inverted T-shaped clamping space comprises a horizontal clamping part and a vertical clamping part, and the horizontal clamping part is arranged below the vertical clamping part; treat that welding flange plate 6 level sets up horizontal clamping part, treat that welding web 7 is vertical to be set up in vertical clamping part, treat that welding flange plate 6 and treat that welding web 7 can be in the horizontal synchronization removal in the type of falling T centre gripping space.
Horizontal sliding connection between positioning element 22 and the locating support 21 in opposite directions, two positioning element 22 in opposite directions are close to each other or keep away from through two positioning element 22 in opposite directions when horizontal slip on locating support 21, have realized the adjustment to T type centre gripping space size, satisfy to not unidimensional model treat welding flange board or treat the centre gripping positioning action of welding the web.
The opposite positioning unit 22 comprises an opposite displacement block 221, a plurality of guide grooved wheels 222, a sliding block 223, a crankshaft 224 and a guide flat wheel 225; the opposite displacement block 221 is horizontally arranged on the positioning support 21 in a sliding mode, the opposite displacement block 221 is parallel to the axis of the flange plate 6 to be welded or the web plate 7 to be welded, and the sliding direction of the opposite displacement block 221 is perpendicular to the axis of the flange plate 6 to be welded or the web plate 7 to be welded; the guide grooved wheels 222 are uniformly arranged on the opposite displacement block 221 at intervals, the lower ends of the guide grooved wheels 222 are rotatably connected with the opposite displacement block 221, and the rotating axes of the guide grooved wheels 222 are vertically arranged; the flange plates 6 to be welded are horizontally arranged between the corresponding guide sheaves 222 in the two opposite positioning units 22, and the distance between the corresponding guide sheaves 222 is adapted to the width of the flange plates 6 to be welded; through the rapid and accurate clamping and positioning of the corresponding guide grooved wheels 222 in the two opposite positioning units 22, when the flange plate 6 to be welded horizontally feeds between the two opposite positioning units 22, the guide grooved wheels 222 rotate around the axes of the guide grooved wheels 222, so that the stable clamping of the flange plate 6 to be welded is ensured, and meanwhile, the stable feeding of the flange plate 6 to be welded is ensured.
A crankshaft 224 is arranged between two adjacent guide grooved wheels 222, the lower end of the crankshaft 224 is fixedly connected with the opposite displacement block 221, and the upper end of the crankshaft 224 is vertically arranged; the crankshaft 224 comprises a first vertical section, a horizontal connecting section and a second vertical section, the lower end of the first vertical section is connected with the opposite displacement block 221, the upper end of the first vertical section is connected with one end of the horizontal connecting section, the other end of the horizontal connecting section is fixed with the lower end of the second vertical section, and the upper end of the second vertical section is a free end; the guide flat wheel 225 is rotatably sleeved on the second vertical section of the crankshaft 224, and the guide flat wheel 225 can rotate around the axis of the second vertical section; the web 7 to be welded is vertically arranged between the corresponding guide flat wheels 225 in the two opposite positioning units 22, and the distance between the corresponding guide flat wheels 225 is adapted to the thickness of the web 7 to be welded; through the quick accurate centre gripping location of treating web 7 of welding through the corresponding direction flush pulley 225 in two positioning unit 22 in opposite directions, treat that the web is horizontal feed between two positioning unit 22 in opposite directions, direction flush pulley 225 rotates around the axis of second vertical section, has ensured treating the stable centre gripping of welding web 7, simultaneously, has ensured treating the steady feeding of welding web 7.
The sliding block 223 is arranged between the crankshaft 224 and the opposite displacement block 221, the upper end of the opposite displacement block 221 is provided with a horizontal sliding chute, and the axis of the horizontal sliding chute is vertical to the axis of the flange plate 6 to be welded or the web plate 7 to be welded; the lower end of the sliding block 223 is slidably arranged in the horizontal sliding groove of the opposite displacement block 221, and the upper end of the sliding block 223 is fixedly connected with the lower end of the first vertical section in the crankshaft 224; through set up sliding block 223 at the lower extreme of bent axle 224, through the fine setting to sliding block 223 position on displacement block 221 in opposite directions, realized the adjustment to corresponding direction flat wheel interval, guaranteed to treat the accurate centre gripping location of welding the web, satisfy the centre gripping positioning action of treating the welding web to different thickness sizes.
The ball screw 23 is horizontally arranged on the positioning bracket 21, and two ends of the ball screw 23 are rotatably connected with the positioning bracket 21; bearing seats 26 are symmetrically arranged on two sides of the positioning support 21, rolling bearings 27 are installed in the bearing seats 26 in a matching mode, and two ends of the roller screw 23 are installed in a pressing mode and are connected with the roller bearings 27 in a matching mode; the two guide rods 24 are symmetrically arranged on two sides of the ball screw 23, and the guide rods 24 are parallel to the ball screw 23; the two guide rods 24 and the ball screw 23 are positioned on the same horizontal plane, and two ends of the guide rods 24 are fixedly connected with the positioning bracket 21; one end of the ball screw 23 is provided with left-handed threads, and the other end is provided with right-handed threads; the two opposite positioning units 22 are symmetrically arranged at two ends of the ball screw 23, wherein the opposite displacement block in one opposite positioning unit is positioned on the left-handed thread, and the opposite displacement block in the other opposite positioning unit is positioned on the right-handed thread; the ball screw 23 is arranged in the middle of the opposite displacement block 221, and two ends of the opposite displacement block 221 are respectively sleeved on the two guide rods 24 in a sliding manner; the hand-operated wheel 25 is fixedly arranged at the end part of the ball screw 23, and the hand-operated wheel 25 is connected with the ball screw 23 through a key; when rotating hand wheel 25, can drive ball 23 horizontal rotation, utilize the levogyration or the dextrorotation threaded connection of two displacement blocks in opposite directions and ball 23 respectively, realized the regulation to the interval between two displacement blocks in opposite directions, and then realize the adjustment to corresponding guide sheave interval, guaranteed to treat the accurate centre gripping location of welding flange board, satisfy the centre gripping location effect of treating welding flange board to different widths.
The gantry rolling mechanism 3 comprises a gantry 31, a hydraulic rod 32, two guide rods 33, a guide plate 34 and a guide roller 35, and the lower end of the gantry 31 is fixedly arranged on the rack 5; the hydraulic rod 32 is vertically arranged right above the web 7 to be welded, and the upper end of the hydraulic rod 32 is fixedly connected with the cross beam of the portal frame 31; the guide roller 35 is rotatably arranged at the lower end of the hydraulic rod 32, the rotating axis of the guide roller 35 is horizontally arranged, and the lower surface of the guide roller 35 is in close contact with the web 7 to be welded; preferably, the middle part of the guide roller 35 is provided with a clamping groove, and the upper end of the web 7 to be welded is arranged in the clamping groove in a matching way; two guide rods 33 are vertically arranged on two sides of the hydraulic rod 32 in parallel, and the guide rods 33 are fixed with the portal frame 31; the guide plate 34 is horizontally arranged, and two ends of the guide plate 34 are respectively sleeved on the two guide rods 33 in a sliding manner; the lower end of the hydraulic rod 32 is fixedly inserted through the middle of the guide plate 34.
The invention also provides an assembling and welding method for the H-shaped steel, which comprises the following steps:
firstly, adjusting the distance between two opposite positioning units to ensure that the width of a horizontal clamping part is adapted to the width of a flange plate to be welded and the width of a vertical clamping part is adapted to the thickness of a web plate to be welded;
then, hoisting the first flange plate to be welded to the horizontal clamping part, and hoisting the web plate to be welded to the vertical clamping part; after aligning the first flange plate to be welded with the web plate to be welded, synchronously feeding horizontally to a discharge port end of the opposite positioning mechanism; welding and fixing a first flange plate to be welded at the discharge port end of the opposite positioning mechanism and a web plate to be welded together by using a welding mechanical arm to form a T-shaped part;
finally, hoisting the second flange plate to be welded to the horizontal clamping part, hoisting the T-shaped part to the vertical clamping part, and clamping the web plate to be welded of the T-shaped part in the vertical clamping part; after aligning the second flange plate to be welded with the web plate to be welded, synchronously feeding horizontally to a discharge port end of the opposite positioning mechanism; and welding and fixing a second flange plate to be welded at the discharge port end of the opposite positioning mechanism and the T-shaped part together by using a welding mechanical arm to obtain the spliced and welded H-shaped steel.
The invention relates to an assembling and welding device and a method, wherein two opposite positioning units are symmetrically fixed on a positioning bracket; the opposite displacement blocks in the opposite positioning units move in opposite directions by rotating the ball screws, so that the aim of positioning and clamping the workpiece to be welded is fulfilled; the gantry rolling mechanism is fixed on the rack in the middle and is connected with the opposite positioning mechanism in parallel front and back; the welding mechanical arm is symmetrically fixed at the other end of the rack and used for welding the workpiece; the invention realizes the accurate positioning of the horizontal steel plate and the vertical steel plate of the workpiece to be welded by utilizing the rotary motion of the ball screw and respectively through the guide grooved wheel and the guide flat wheel on the opposite displacement block; the gantry rolling equipment realizes stable clamping of the whole assembly of the weldment to be welded, and avoids positioning failure and deformation distortion of the weldment; the welding mechanical arm is fixedly arranged on the underframe, the flexible rotation of the mechanical arm is utilized, the rapid welding of the welding workpiece is realized, and the overall efficiency and yield of the splicing welding are improved.
Examples
The embodiment provides an assembling and welding device for H-shaped steel, which comprises a conveying mechanism, an opposite positioning mechanism, a gantry rolling mechanism, a welding mechanical arm and a rack; the conveying mechanism is arranged in parallel with the rack and is connected with the rack in a front-back mode; the opposite positioning mechanism is horizontally fixed on the rack and used for clamping and positioning the to-be-welded part, and the to-be-welded part can horizontally move in the opposite positioning mechanism; the parts to be welded comprise flange plates to be welded and webs to be welded; the gantry rolling mechanisms are arranged on the rack in a centered and symmetrical mode, are connected with the opposite positioning mechanisms in a front-back parallel mode and are positioned at the discharge port ends of the opposite positioning mechanisms; the welding mechanical arms are symmetrically arranged on the rack and are positioned behind the gantry rolling mechanism; and the cylinder rod welding mechanical arm is used for welding and fixing the workpieces to be welded after the workpieces to be welded are conveyed in a production line mode through the conveying mechanism, fed to the opposite positioning mechanisms, accurately and quickly positioned through the opposite positioning mechanisms and pressed firmly through the gantry rolling mechanism.
The conveying mechanism comprises a conveying support and a plurality of conveying rollers, the conveying support is fixedly arranged at the front end of the rack and is positioned at the feed port end of the opposite positioning mechanism, the plurality of conveying rollers are arranged on the conveying support in parallel at intervals, and the rolling axes of the conveying rollers are vertical to the axis of the piece to be welded; the end part of the transmission rolling shaft is connected with a power mechanism; the power mechanism drives the conveying roller to horizontally rotate, and the conveying roller can drive the to-be-welded part to feed to the opposite positioning mechanism in the horizontal rotating process.
The opposite positioning mechanism comprises a positioning bracket, two opposite positioning units, a ball screw, two guide rods, a hand-operated wheel, a bearing seat and a rolling bearing; the positioning support adopts a channel steel frame, the channel steel frame is horizontally fixed on the rack, and the channel steel frame and the rack are welded and fixed; the bearing seats are symmetrically fixed on the channel steel frame, the rolling bearings are installed in the bearing seats in a matching mode, and two ends of the ball screw are respectively connected with the two rolling bearings in a matching mode through press-in installation; the hand-operated wheel is connected with the end part of the ball screw through a key.
The two opposite positioning units are symmetrically arranged on the channel steel frame and comprise opposite displacement blocks, a plurality of guide grooved wheels, a sliding block, a crankshaft and guide flat wheels; opposite displacement blocks in the two opposite positioning units are symmetrically arranged at two ends of the ball screw; synchronous opposite movement of the two opposite displacement blocks is realized through a ball screw; two ends of the opposite displacement block are slidably arranged on the guide rod in a penetrating manner, so that the stable operation of the opposite displacement block is ensured; the sliding blocks are arranged on the opposite displacement blocks in pairs, the guide flat wheels are fixed on the sliding blocks through the crankshafts, and the distance between the guide flat wheels on the two sides is changed by adjusting the sliding blocks so as to meet the requirements of clamping and positioning webs to be welded with different thicknesses; the guide grooved wheels are directly and rotatably arranged on the opposite displacement blocks, and the distance between the opposite displacement blocks is adjusted by rotating the ball screw so as to be used for clamping and positioning the welding flange plates; the opposite displacement blocks, the guide grooved wheels and the guide flat wheels in the two opposite positioning units are symmetrically arranged on the channel steel frame; the sliding blocks are arranged on each opposite displacement block in pairs, the guide flat wheels are fixed on the sliding blocks through the crankshafts, and the guide grooved wheels and the sliding blocks are indirectly arranged and directly fixed on the opposite displacement blocks; the screw thread of the ball screw is divided into two parts from the middle, one end of the ball screw is a left-handed screw thread, the other end of the ball screw is a right-handed screw thread, and synchronous opposite movement of the opposite displacement blocks is guaranteed under the rotation of the hand-operated wheel.
The gantry rolling mechanism comprises a gantry, a hydraulic rod, two guide rods, a guide plate and a guide roller; the portal frame is welded on the rack, the hydraulic rod is vertically arranged right above the web plate to be welded, the hydraulic rod comprises a cylinder body and a cylinder arm, the cylinder body is fixed on a cross beam of the portal frame, and the guide roller is arranged at the lower end of the cylinder arm; the cylinder arm is fixedly connected with the guide plate; the guide rods are symmetrically fixed on the portal frame, and the guide plate is in clearance fit with the guide rods, so that the cylinder arm can be ensured to run smoothly and cannot move; through the extension of cylinder arm, impel guide roller to press down, guarantee to wait that the reliable firm of welding member location is assembled.
The assembling and welding method for the H-shaped steel in the embodiment specifically comprises the following steps:
According to the invention, the hand-operated wheel is rotated, and the rapid movement of the opposite displacement blocks is realized by means of the rotation motion of the ball screw; the guide grooved wheels on the opposite displacement blocks are used for realizing the rapid positioning of the flange plates to be welded; the accurate positioning of the web plate to be welded is realized by finely adjusting the distance between the guide flat wheels at the two sides; the gantry rolling mechanism is used for stably clamping the whole to-be-welded part in an assembling manner, so that positioning failure and distortion deformation of the to-be-welded part in the welding process are avoided; the welding mechanical arm is fixedly arranged on the rack, the welding mechanical arm is flexibly rotated, rapid welding of a workpiece to be welded is achieved, and the overall efficiency and the yield of assembly welding are improved.
The assembling and welding equipment and the assembling and welding method save manual measurement and alignment time, avoid the problem of clamping deformation of the hydraulic arm and have more obvious welding advantages; the positioning process is simple, the efficiency is high, the deformation and cracking of the workpiece are avoided, the integrity is good, and the yield is high; meanwhile, the invention can also be used for welding and assembling the T-shaped steel, and has wide application range.
The above-described embodiment is only one of the embodiments that can implement the technical solution of the present invention, and the scope of the present invention is not limited by the embodiment, but includes any variations, substitutions and other embodiments that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed.
Claims (10)
1. An assembling and welding device for H-shaped steel is characterized by comprising opposite positioning mechanisms (2) and welding mechanical arms (4); the opposite positioning mechanism (2) comprises positioning brackets (21) and opposite positioning units (22), the opposite positioning units (22) are symmetrically arranged on the positioning brackets (21), and inverted T-shaped clamping spaces are formed between the opposite positioning units (22);
the inverted T-shaped clamping space comprises a horizontal clamping part and a vertical clamping part, the flange plate (6) to be welded is horizontally arranged in the horizontal clamping part, the web plate (7) to be welded is vertically arranged in the vertical clamping part, and the flange plate (6) to be welded and the web plate (7) to be welded can horizontally and synchronously move in the inverted T-shaped clamping space; the welding mechanical arms (4) are symmetrically arranged at the discharge port end of the opposite positioning mechanism (2) and are used for welding the flange plates (6) to be welded and the webs (7) to be welded.
2. The splicing and welding device for H-shaped steel according to claim 1, wherein the facing positioning unit (22) comprises a facing displacement block (221), a plurality of guide sheaves (222), a crankshaft (224) and a guide flat wheel (225); the opposite displacement block (221) is arranged on the positioning bracket (21) and is parallel to the axis of the flange plate (6) to be welded or the web plate (7) to be welded;
the guide grooved wheels (222) are arranged on the opposite displacement blocks (221) at intervals, the lower ends of the guide grooved wheels (222) are rotatably connected with the opposite displacement blocks (221), and the rotating axes of the guide grooved wheels (222) are vertically arranged; the to-be-welded flange plates (6) are horizontally arranged between corresponding guide grooved wheels (222) in the two opposite positioning units (22), and the distance between the corresponding guide grooved wheels (222) is adapted to the width of the to-be-welded flange plates (6);
a crankshaft (224) is arranged between the adjacent guide grooved wheels (222), the lower end of the crankshaft (224) is connected with the opposite displacement block (221), the upper end of the crankshaft (224) is vertically arranged, and the guide flat wheel (225) is rotatably sleeved at the upper end of the crankshaft (224); the web plates (7) to be welded are vertically arranged between the corresponding guide flat wheels (225) in the two opposite positioning units (22), and the distance between the corresponding guide flat wheels (225) is adapted to the thickness of the web plates (7) to be welded.
3. The splicing and welding device for H-shaped steel according to claim 2, wherein the facing positioning unit (22) further comprises a sliding block (223), and the sliding block (223) is arranged between the crankshaft (224) and the facing displacement block (221); the upper end of the opposite displacement block (221) is provided with a horizontal sliding chute, and the axis of the horizontal sliding chute is vertical to the axis of the flange plate (6) to be welded or the web plate (7) to be welded; the lower end of the sliding block (223) is arranged in a horizontal sliding groove of the opposite displacement block (221) in a sliding mode, and the upper end of the sliding block (223) is fixedly connected with the lower end of the crankshaft (224).
4. The assembly welding device for H-shaped steel according to claim 2, characterized in that the opposite displacement blocks (221) are connected with the positioning brackets (21) in a sliding mode, and the sliding direction of the opposite displacement blocks (221) is perpendicular to the axis of the flange plate (6) to be welded or the web plate (7) to be welded.
5. The splicing and welding device for H-shaped steel according to claim 4, wherein the opposite positioning mechanisms (2) further comprise ball screws (23) and two guide rods (24); the ball screw (23) is horizontally arranged on the positioning bracket (21), and two ends of the ball screw (23) are rotationally connected with the positioning bracket (21); the two guide rods (24) are symmetrically arranged on two sides of the ball screw (23), and the guide rods (24) are parallel to the ball screw (23);
one end of the ball screw (23) is provided with left-handed threads, and the other end is provided with right-handed threads; the opposite positioning units (22) are symmetrically arranged at two ends of the ball screw (23), wherein the opposite displacement block in one opposite positioning unit is positioned on the left-handed thread, and the opposite displacement block in the other opposite positioning unit is positioned on the right-handed thread; the ball screw (23) is arranged in the middle of the opposite displacement block (221), and two ends of the opposite displacement block (221) are respectively sleeved on the two guide rods (24) in a sliding manner.
6. The assembling and welding device for H-shaped steel according to claim 5, characterized in that a hand-operated wheel (25) is arranged at the end of the ball screw (23), and the hand-operated wheel (25) is connected with the ball screw (23) through a key.
7. The assembling and welding device for H-shaped steel according to claim 1, characterized by further comprising a gantry rolling mechanism (3), wherein the gantry rolling mechanism (3) is arranged between the opposite positioning mechanism (2) and the welding mechanical arm (4); the gantry rolling mechanism (3) comprises a gantry frame (31), a hydraulic rod (32) and a guide roller (35), and the gantry frame (31) is fixedly provided with a discharge port end of the opposite positioning mechanism (2); the hydraulic rod (32) is vertically arranged right above the web (7) to be welded, and the upper end of the hydraulic rod (32) is fixedly connected with a cross beam of the portal frame (31); guide roller (35) rotate and set up the lower extreme at hydraulic stem (32), and guide roller (35)'s axis of rotation level sets up, and guide roller (35)'s lower surface and wait to weld web (7) in close contact with.
8. The assembling and welding device for H-shaped steel according to claim 7, characterized in that the gantry rolling mechanism (3) further comprises two guide rods (33) and a guide plate (34), the two guide rods (33) are vertically arranged on two sides of the hydraulic rod (32) in parallel, and the guide rods (33) are fixed with the gantry (31); the guide plate (34) is horizontally arranged, and two ends of the guide plate (34) are respectively sleeved on the two guide rods (33) in a sliding manner; the lower end of the hydraulic rod (32) is fixedly arranged in the middle of the guide plate (34) in a penetrating way.
9. The splicing and welding device for the H-shaped steel according to claim 1, characterized by further comprising a conveying mechanism (1), wherein the conveying mechanism (1) is arranged at the feed port end of the opposite positioning mechanism (2); the conveying mechanism (1) comprises a conveying support (11) and a plurality of conveying rollers (12), and the conveying support (11) is positioned at the feed inlet end of the opposite positioning mechanism (2); the plurality of conveying rollers (12) are arranged on the conveying support (11) in parallel at intervals, and the rolling axes of the conveying rollers (12) are vertical to the axes of the flange plates (6) to be welded or the webs (7) to be welded.
10. A splicing and welding method for H-section steel, characterized in that the splicing and welding device for H-section steel of any one of claims 1 to 9 is used, comprising the following steps:
firstly, adjusting the distance between two opposite positioning units to ensure that the width of a horizontal clamping part is adapted to the width of a flange plate to be welded and the width of a vertical clamping part is adapted to the thickness of a web plate to be welded;
then, hoisting the first flange plate to be welded to the horizontal clamping part, and hoisting the web plate to be welded to the vertical clamping part; after aligning the first flange plate to be welded with the web plate to be welded, synchronously feeding horizontally to a discharge port end of the opposite positioning mechanism; welding and fixing a first flange plate to be welded at the discharge port end of the opposite positioning mechanism and a web plate to be welded together by using a welding mechanical arm to form a T-shaped part;
finally, hoisting the second flange plate to be welded to the horizontal clamping part, hoisting the T-shaped part to the vertical clamping part, and clamping the web plate to be welded of the T-shaped part in the vertical clamping part; after aligning the second flange plate to be welded with the web plate to be welded, synchronously feeding horizontally to a discharge port end of the opposite positioning mechanism; and welding and fixing a second flange plate to be welded at the discharge port end of the opposite positioning mechanism and the T-shaped part together by using a welding mechanical arm to obtain the spliced and welded H-shaped steel.
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| CN202011177334.8A CN112338394A (en) | 2020-10-28 | 2020-10-28 | Splicing and welding device and method for H-shaped steel |
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| CN202011177334.8A CN112338394A (en) | 2020-10-28 | 2020-10-28 | Splicing and welding device and method for H-shaped steel |
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Cited By (7)
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| CN113681223A (en) * | 2021-09-03 | 2021-11-23 | 中交路桥建设有限公司 | Adjustable anti-toppling support for machining of H-shaped steel beam |
| CN114043150A (en) * | 2021-11-27 | 2022-02-15 | 北钢建设集团股份有限公司 | Welding auxiliary equipment for box-type steel member and machining process of welding auxiliary equipment |
| CN114669828A (en) * | 2021-12-27 | 2022-06-28 | 浙江尤恩智能科技有限公司 | Welding equipment for forklift gantry |
| CN114799628A (en) * | 2022-04-18 | 2022-07-29 | 张景心 | T-shaped steel intelligent welding workstation |
| CN115740885A (en) * | 2023-01-10 | 2023-03-07 | 河北嘉力来钢结构有限公司 | Steel structure welding processing equipment and technology |
| CN116329833A (en) * | 2023-05-31 | 2023-06-27 | 山东东盛重工科技有限公司 | Welding assistor for additionally installing steel plates on H-shaped steel upright posts |
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| CN115740885A (en) * | 2023-01-10 | 2023-03-07 | 河北嘉力来钢结构有限公司 | Steel structure welding processing equipment and technology |
| CN116329833A (en) * | 2023-05-31 | 2023-06-27 | 山东东盛重工科技有限公司 | Welding assistor for additionally installing steel plates on H-shaped steel upright posts |
| CN117340492A (en) * | 2023-12-04 | 2024-01-05 | 湘潭永达机械制造股份有限公司 | Rear frame T-shaped steel welding system |
| CN117340492B (en) * | 2023-12-04 | 2024-03-05 | 湘潭永达机械制造股份有限公司 | Rear frame T-shaped steel welding system |
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