CN112059369A - Dedicated back sliding block of two-sided liquid cooling formula electrogas welding equipment compresses tightly adjustment mechanism - Google Patents
Dedicated back sliding block of two-sided liquid cooling formula electrogas welding equipment compresses tightly adjustment mechanism Download PDFInfo
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- CN112059369A CN112059369A CN202010923619.5A CN202010923619A CN112059369A CN 112059369 A CN112059369 A CN 112059369A CN 202010923619 A CN202010923619 A CN 202010923619A CN 112059369 A CN112059369 A CN 112059369A
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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
- B23K9/00—Arc welding or cutting
- B23K9/12—Automatic feeding or moving of electrodes or work for spot or seam welding or cutting
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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
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
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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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
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Abstract
The invention discloses a special rear sliding block pressing and adjusting mechanism for double-sided liquid-cooled gas electric vertical welding equipment, which comprises a vehicle body connecting plate, a lifting plate, a front and rear coarse adjusting mechanism, a front and rear fine adjusting mechanism and a left and right adjusting mechanism; the vehicle body connecting plate is arranged on the vehicle body, the bottom end of the vehicle body connecting plate is arranged in the center of the surface of the rear sliding block, and the top end of the vehicle body connecting plate is connected with the vehicle body connecting plate; the front and rear coarse adjusting mechanism comprises a lifting rotating pin, a lifting hole, a pin hole and a tightening rod; the jacking rod, the lifting rotating pin and the rear sliding block form a lever structure with the lifting rotating pin as a rotating center, and the pressing force between the rear sliding block and the steel plate base metal at the welding seam is preliminarily adjusted by adjusting the jacking force of the jacking rod; the front and back micro-adjusting mechanism is used for finely adjusting the front and back position of the back slide block; the left-right adjusting mechanism is used for adjusting the left-right position of the rear sliding block. The lever mechanism is used for ensuring that the lifting mechanism plate is parallel to the welding bead, and the back sliding block is subjected to back and forth adjustment twice, so that the back sliding block is ensured to be pressed back and forth and has moderate force.
Description
Technical Field
The invention relates to a vertical welding device, in particular to a special rear sliding block pressing and adjusting mechanism for double-sided liquid-cooled gas-electric vertical welding equipment.
Background
The electro-gas welding is a high-efficiency automatic welding method which adopts a movable water-cooling copper slide block to block molten metal on the front surface of a welding seam, adopts a fixed water-cooling copper blocking row or a ceramic liner to seal the bottom on the back surface, forces the welding seam to form, realizes the single-side welding and double-side forming of the upward butt joint position of the vertical seam, and is mainly applied to the automatic welding of longitudinal vertical welding seams of manufacturing large storage tank containers, ships and the like in the industries of natural gas, petrochemical industry, electric power, shipbuilding and the like.
As shown in fig. 14, a back support plate 12 is generally used on the back surface of the existing steel plate base material 10, the back support plate 12 is generally a ceramic liner or a fixed copper bar, and the like, such back support plate 12 easily causes waste of back liner materials, the liner sticking on the back of the drilling cabin is not easy and cumbersome to operate, the ceramic liner is often burnt through in the welding process, and the work efficiency is low. The material cost of the back gasket, the labor for attaching the gasket and the installation cost increase the welding cost, and the continuous sealing of the back gasket and the adoption of the flux-cored wire easily cause the accumulation of welding slag 131 on the surface of a molten pool 13, so that the electric arc is unstable, the arc is stopped for cleaning every 800 mm-1000 mm of welding, and the arc is stopped to produce a shrinkage cavity at the arc-closing part of a joint, so that the double-sided repair is needed, and the time and the labor are wasted. It is for these reasons that the use rate of the electrogas welding equipment in most domestic shipyards is not high and the efficiency is low.
In the actual production of ship body large closure, the plate thickness span of the vertical butt weld groove plate is large, such as 8-50mm, and the problems of edge staggering, front-back inclination, left-right rotation and the like often exist in groove group pairing. The joint tightness of the back sliding block and the surface of the groove of the welding seam and whether the back sliding block is centered seriously affect the forming quality of the welding seam. Too loose of the joint can cause the molten metal to overflow and flow downwards, form slag, welding beading and even prevent the welding seam from forming; misalignment of the back sliding block and the welding bead easily causes undercut of a back welding seam, and the forming quality of the welding seam is affected.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a special rear sliding block pressing and adjusting mechanism for double-sided liquid-cooled gas electric welding equipment, aiming at the defects of the prior art, the special rear sliding block pressing and adjusting mechanism for double-sided liquid-cooled gas electric welding equipment ensures that a lifting mechanism plate is parallel to a welding bead by utilizing a lever principle, and ensures that a rear sliding block is pressed forwards and backwards and has moderate force by regulating the rear sliding block forwards and backwards twice.
In order to solve the technical problems, the invention adopts the technical scheme that:
a special rear sliding block pressing and adjusting mechanism for double-sided liquid-cooled electro-gas welding equipment comprises a vehicle body connecting plate, a lifting plate, a front and rear coarse adjusting mechanism, a front and rear fine adjusting mechanism and a left and right adjusting mechanism.
One end of the vehicle body connecting plate is arranged on the vehicle body of the double-sided liquid-cooled electro-gas welding equipment.
The bottom end of the lifting plate is arranged at the surface center line position of the rear sliding block, and the front side of the top end of the lifting plate is connected with the vehicle body connecting plate through the lifting mounting plate.
The front and rear coarse adjusting mechanism comprises a lifting rotating pin, a lifting hole, a pin hole and a tightening rod. The lifting hole is arranged on the lifting plate corresponding to the lifting mounting plate, the pin hole is arranged on the lifting mounting plate, and the lifting rotating pin is rotatably inserted in the pin hole and the lifting hole. The jacking rod is used for jacking the top end of the side wall surface of the lifting plate matched with the lifting mounting plate in the front-back direction. The jacking rod, the lifting rotating pin and the rear sliding block form a lever structure with the lifting rotating pin as a rotating center, and the pressing force between the rear sliding block and the steel plate base metal at the welding seam is preliminarily adjusted by adjusting the jacking force of the jacking rod.
The front and back micro-adjusting mechanism is used for finely adjusting the front and back positions of the lifting plate and the back sliding block.
The left-right adjusting mechanism is used for adjusting the left-right position of the rear sliding block, so that the rear sliding block is aligned with the welding line left and right.
The jacking rod is a jacking screw rod, and the side wall surface of the lifting plate matched with the lifting mounting plate is a vertical surface. The tightening bolt is in threaded connection with the lifting mounting plate and is tightly pressed on the top end of the vertical surface of the lifting plate.
The plurality of lifting holes are arranged on the lifting plate corresponding to the lifting mounting plate along the front-back direction. And rotatably inserting the lifting rotating pin into the pin hole and one of the lifting holes according to the thickness of the steel plate base material.
The number of the lifting holes is three, and the first lifting hole, the second lifting hole and the third lifting hole are respectively arranged along the front direction and the rear direction. Wherein the first lifting hole, the second lifting hole and the third lifting hole are respectively suitable for steel plate base materials with the thicknesses of 8-20mm, 20-40mm and 40-50 mm.
A cooling flow channel is arranged in the rear sliding block, and the top of the rear sliding block positioned at the two sides of the lifting plate is respectively provided with a cooling water pipe; each cooling water pipe comprises a metal pipe, a flexible pipe and a stainless steel pipe from bottom to top respectively; the bottom end of the metal pipe is communicated with the cooling flow channel, and the top end of the metal pipe is communicated with the flexible pipe.
The metal tube is a copper tube, and the flexible tube is a high-temperature-resistant and pressure-resistant silicone tube.
The stainless steel pipes at the top end are all arranged on the top of the lifting plate or the vehicle body connecting plate through water pipe supporting frames.
The front and back fine adjustment mechanisms and the left and right adjustment mechanisms are both in a gear rack structure.
The front and back fine adjustment mechanism comprises a front and back guide rod, a front and back slide block and a front and back adjustment hand wheel. One end of the front and back guide rod is arranged on the vehicle body, and one side of the front and back guide rod is provided with a front and back rack. The front and back sliding blocks are sleeved on the periphery of the front and back guide rods in a sliding mode, and front and back gears meshed with the front and back teeth are arranged in the front and back sliding blocks. The bottom of the hand wheel shaft of the front and back adjusting hand wheel is connected with the front and back gears.
The left-right adjusting mechanism comprises a left-right slide block and a left-right adjusting hand wheel. The top surface of the vehicle body connecting plate adjacent to the lifting plate is provided with a left-right rack. The left and right slide blocks are slidably sleeved on the vehicle body connecting plate at the periphery of the left and right racks, and the left and right slide blocks are connected with the lifting mounting plate. Left and right gears meshed with the left and right racks are arranged in the left and right sliding blocks, and hand wheel shafts of the left and right adjusting hand wheels are connected with the left and right gears.
The invention has the following beneficial effects:
1. the invention can meet the use requirement of the electrogas welding equipment, can cover the thickness range of the welding plate of 8-50mm, and achieves excellent welding seam forming effect. The ceramic liner can replace the original disposable ceramic liner, reduce the welding cost of manpower and the like, improve the welding quality and the production efficiency and ensure the reliability of products; the appearance is well formed; the equipment is simple and reliable, and is easy to popularize and apply.
2. When the forming effect of the back surface of the base material is general, the back surface sliding block can be adjusted in a self-adaptive and micro mode to meet the requirement of forced forming welding, and therefore the quality of a welding seam is stable; 2. when the electrogas welding trolley moves to the topmost part of the base metal, the rear sliding block and the sliding block fixing plate of the adjusting mechanism can fix the rear sliding block without depending on the back of the base metal, and the whole welding line can be welded completely.
3. The invention integrates the front and rear sliding blocks, water cooling, walking, adjusting, controlling and other functional modules, and can form the invention design of light weight, modularization, integrity and systematicness of the electro-gas welding equipment.
Drawings
FIG. 1 is a front view of an adaptive double-sided water-cooled electro-gas welding device with reduced welding slag.
FIG. 2 is a side view of an adaptive double-sided water-cooled electro-gas welding device for reducing welding slag according to the present invention.
FIG. 3 is an isometric view of an adaptive double-sided water-cooled electro-gas welding apparatus for reducing welding slag according to the present invention.
FIG. 4 shows an assembly diagram of the adaptive double-sided water-cooled electro-gas welding equipment for reducing welding slag according to the invention.
Figure 5 shows a schematic view of a track segment according to the invention.
Fig. 6 shows a schematic view of the structure of the vehicle body in the present invention.
Fig. 7 shows a schematic view of the structure of the driving clutch mechanism of the present invention.
Fig. 8 shows a schematic structure of the vehicle body running along the rail in the invention.
Fig. 9 shows a schematic view of the welding torch according to the present invention.
Fig. 10 shows a schematic structural view of a front slider adjusting mechanism according to the present invention.
Fig. 11 shows a first perspective view of the rear slide hold down adjustment mechanism of the present invention.
Fig. 12 shows a second perspective view of the rear slide hold down adjustment mechanism of the present invention.
Fig. 13 shows a schematic view of the structure of the pulling plate of the present invention. .
Fig. 14 shows a schematic view of the welding slag resulting from the prior art welding with ceramic backing or fixed copper bars.
Among them are:
10. a steel plate base material; a back support plate; 13. a molten pool; 131. welding slag;
20. a track;
21. a track segment; 22. a magnet mounting plate; 23. a manual magnet; 24. a traveling rack; 25. a guide bolt; 26. a guide slot;
30. a vehicle body; 31. a guide wheel; 311. a wheel axle; 32. a guide slide plate; 33. a shield; 34. rapidly clamping the assembly; 341. clamping a limiting groove; 342. an eccentric cam; 343. a camshaft; 344. a guide shaft; 345. a spring; 346. a connecting rod; 347. clamping a handle;
40. driving the clutch mechanism; 41. a drive wheel; 411. a drive shaft; 42. a traveling motor; 43. a worm gear pair; 44. a motor mounting plate; 441. a clutch limiting groove; 45. a clutch limit cam; 46. a clutch camshaft; 47. a clutch operating handle;
50. a front slider; 51. a front slider adjustment mechanism;
60. a rear slider;
70. the rear sliding block compresses the adjusting mechanism;
71. lifting the plate; 711. the welding gun avoids arc; 712. a slider connecting rod; 713. a first pull hole; 714. a second pull hole; 715. a third lifting hole; 716. lightening holes; 717. a vertical facade;
72. lifting the mounting plate; 721. a pin hole; 73. pulling the rotating pin; 74. tightly pushing the screw;
75. a front and rear fine adjustment mechanism; 751. a front guide rod and a rear guide rod; 752. a front and rear slider; 753. a front and rear adjusting hand wheel;
76. a left-right adjusting mechanism; 761. a left-right slide block; 762. a left and right adjusting hand wheel;
77. a vehicle body connecting plate; 771. left and right racks;
78. a cooling water pipe; 781. a copper pipe; 782. a flexible tube; 783. a stainless steel tube;
79. a water pipe support frame;
80. a welding gun; 81. a welding gun position adjusting mechanism; 82. a welding gun angle adjusting mechanism;
90. and a control box.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific preferred embodiments.
In the description of the present invention, it is to be understood that the terms "left side", "right side", "upper part", "lower part", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and that "first", "second", etc., do not represent an important degree of the component parts, and thus are not to be construed as limiting the present invention. The specific dimensions used in the present example are only for illustrating the technical solution and do not limit the scope of protection of the present invention.
As shown in fig. 1 to 4, an adaptive double-sided water-cooled electrogas welding apparatus for reducing welding slag includes a rail 20, a vehicle body 30, a driving clutch mechanism 40, a front slider 50, a rear slider 60, a rear slider pressing adjustment mechanism 70, a welding gun 80, a rear slider cooling mechanism, and a control box 90.
The rail is arranged on the steel plate base material adjacent to the welding seam in an adsorption mode and is parallel to the welding seam.
The rail is preferably formed by splicing several rail sections 21 in a direction parallel to the weld.
As shown in fig. 5, a manual magnet 23 is mounted at the center of the bottom of each track segment through a magnet mounting plate 22, and the manual magnet is attracted to the steel plate base material adjacent to the weld.
The manual magnet is purchased in the market, when welding is completed and adsorption is removed, the adsorption force between the permanent magnet and the steel plate base metal is removed only by manually pulling the handle of the manual magnet, so that labor is saved, and the rail is fast to assemble and disassemble.
In order not to influence the up-and-down sliding of the follow-up vehicle body, the magnet mounting plate 22 and the manual magnet 23 are both positioned in the center of the bottom of the track, and the clamping of the guide wheels in the vehicle body is not influenced.
The connection between adjacent track segments is preferably made by means of guide locators which preferably comprise guide pins 25 arranged at the bottom of the track segments and guide slots 26 or the like arranged at the top of the track segments.
In addition, the running rack 24 is provided on one side of the rail, and is preferably provided on the right side in the present embodiment.
The vehicle body can freely slide up and down along the track.
As shown in fig. 6, the vehicle body preferably includes a shroud 33, a guide slide 32, four sets of guide wheels 31, and a quick-clamping assembly 34.
Each group of guide wheels comprises two splayed guide wheels symmetrically arranged on the front side wall and the rear side wall of the track, and each guide wheel is sleeved on the wheel shaft 311.
Wherein two groups of guide wheels are arranged on the right side or the left side of the protective cover, and the other two groups of guide wheels are arranged on the guide sliding plate.
The guide sliding plate is arranged on the left side or the right side of the protective cover in a sliding mode and can slide left and right under the driving of the quick clamping assembly.
The quick clamping assembly 34 preferably comprises a guide shaft 344, a spring 345, a connecting rod 346 and a spring limiting assembly.
The guide shaft is vertically and rotatably arranged in a shield of the vehicle body and can rotate along the axis of the guide shaft under the action of the driving device.
The springs are arranged in the left-right direction, one ends of the springs are arranged on the guide shafts, and the other ends of the springs extend out of the guide sliding plates and are connected with connecting rods arranged on the outer sides of the guide sliding plates. The spring limiting assembly is used for limiting the telescopic displacement of the spring.
In this embodiment, the spring limiting component is preferably a clamping limiting groove 341, an eccentric cam 342 and a cam shaft 343. The clamping limiting groove is arranged at the top of a bottom plate of the vehicle body or on a cam limiting plate positioned at the top of the vehicle body, the eccentric cam is preferably positioned in the clamping limiting groove and connected with the bottom of the guide shaft, and the cam shaft is preferably coaxially arranged at the top of the guide shaft.
In this embodiment, the driving device is preferably a clamp handle 347 attached to the top of the camshaft, but may be a motor, an air cylinder, or the like.
As shown in fig. 7 and 8, the drive clutch mechanism is mounted on the vehicle body and includes a drive wheel 41, a travel motor 42, and a clutch assembly. The driving wheel is meshed with the walking rack, the output end of the walking motor is a worm, a U-shaped motor mounting plate 44 is fixedly sleeved on the periphery of the worm, a driving shaft 411 of the driving wheel extends into a U-shaped cavity of the motor mounting plate to form an extending end, a worm wheel is sleeved on the extending end, and the worm wheel and the worm form a worm-wheel-worm pair 43.
The clutch assembly is used for releasing the drive control of the walking motor to the driving wheel, namely releasing the meshing between the worm gear and the worm.
In the present embodiment, the clutch assembly preferably includes a clutch limit groove 441, a clutch limit cam 45, a clutch cam shaft 46, and a clutch operating handle 47.
The clutch limiting groove 441 is preferably arranged at the top of the motor mounting plate and is U-shaped.
The rear end of the clutch cam shaft 46 is rotatably installed on the vehicle body, the middle part of the clutch cam shaft 46 is coaxially and fixedly sleeved with a clutch limiting cam 45 and is positioned in the clutch limiting groove 441, the front end of the clutch cam shaft 46 extends out of the front end face of the vehicle body, and a clutch operating handle 47 is installed, and alternatively, the clutch cam shaft can be controlled by a motor in a unified mode.
When the meshing between the worm gears and the worm is required to be removed, the clutch limiting cam 45 rotates only by rotating the clutch operating handle 47, and pushes the motor mounting plate and the worm to slide towards the direction far away from the worm gears, so that the meshing between the worm gears and the worm is removed; when the clutch operating handle is reset, the worm and the gear are meshed again.
The welding gun is arranged on the vehicle body and used for welding a welding seam. As shown in fig. 9, the torch 80 includes a torch position adjusting mechanism 81, a torch angle adjusting mechanism 82, and a torch swing amplitude adjusting mechanism. The welding gun position adjusting mechanism 81 is used for adjusting the front-back direction and left-right direction positions of the welding gun; the welding gun angle adjusting mechanism 82 is used for adjusting the welding angle between a welding gun and the steel plate base metal; the welding gun swing amplitude adjusting mechanism is used for adjusting the swing amplitude and the swing frequency of welding.
Since the structure of the entire welding gun is the prior art, detailed description thereof is omitted.
The front sliding block and the rear sliding block are symmetrically arranged on two sides of the welding line.
The front sliding block and the rear sliding block are preferably provided with arc grooves, the size of each arc groove corresponds to the convex surface of a welding line, and the width of each arc groove is preferably 20-28mm, so that the front sliding block and the rear sliding block can better adapt to the outflow of welding slag and coating in the welding process.
The front slide is connected to the vehicle body by a front slide adjustment assembly 51.
The specific structure of the front slider adjustment assembly 51, as shown in fig. 10, is used for controlling the front-back and left-right positions of the front slider in the prior art, and will not be described herein.
The rear slider 60 is connected to a rear slider hold down adjustment mechanism 70.
As shown in fig. 11 and 12, a rear shoe pressing and adjusting mechanism, also called a rear shoe pressing and adjusting mechanism 70, which is dedicated to a double-sided liquid-cooled gas electric welding apparatus, includes a vehicle body connecting plate 77, a lifting plate 71, a lifting mounting plate 72, a front-rear coarse adjusting mechanism, a front-rear fine adjusting mechanism 75, and a left-right adjusting mechanism 76.
The vehicle body connecting plate is preferably Z-shaped, and one end of the vehicle body connecting plate is arranged on a vehicle body of the double-sided liquid-cooled gas electric vertical welding equipment.
As shown in fig. 13, a welding gun escape arc 711 is provided on the bottom surface of the pull-up plate, so that the weight of the pull-up plate is reduced while the welding gun is escaped. The rear side of the torch avoidance arc 711 forms a slider connecting rod 712.
The bottom of slider connecting rod is installed in the surperficial central line position department of slider behind, and specific preferred connection method does: a deep groove and a blind hole are formed in the center line of the surface of the rear sliding block (also called a back sliding block), and a hook is arranged at the bottom end of the sliding block connecting rod and is pulled at the center line of the surface of the rear sliding block.
The top front side of the lifting plate is a vertical surface 717.
Three lifting holes are arranged at the bottom of the lifting plate above the welding gun avoiding arc and preferably at the position adjacent to the vertical surface, but the number of the lifting holes can be more than one. The three lifting holes are preferably located on the same straight line, and are a first lifting hole 713, a second lifting hole 714 and a third lifting hole 715 along the front-rear direction.
In addition, a plurality of lightening holes 716 are preferably arranged on the lifting plate above the welding gun avoiding arc.
The vertical surface of the lifting plate is connected with the vehicle body connecting plate through the lifting mounting plate.
The lifting mounting plate 72 is preferably a U-shaped ferrule that is clamped around the vertical surface of the lifting plate. Because the lifting mounting plate does not need to enter the welding seam, but the rear side part of the lifting plate needs to enter the welding seam, the thickness of the lifting mounting plate can be larger than the width of the welding seam, but the thickness of the lifting plate must be smaller than the width of the welding seam.
Further, the lifting and mounting plate 72 is provided with a pin hole 721 and a jack screw hole.
The front-rear coarse adjustment mechanism includes a lifting rotation pin 73, the lifting hole, the pin hole, and a tightening rod.
And rotatably inserting the lifting rotating pin into the pin hole and one of the lifting holes according to the thickness of the steel plate base material. Wherein the first lifting hole, the second lifting hole and the third lifting hole are respectively suitable for steel plate base materials with the thicknesses of 8-20mm, 20-40mm and 40-50 mm.
The jacking rod is used for jacking the top end of the side wall surface of the lifting plate matched with the lifting mounting plate in the front-back direction.
In this embodiment, the tightening rod is preferably a tightening screw 74. The tightening bolt is in threaded connection with the lifting mounting plate, and the end face of the bolt is in tight contact with the top end of the vertical face of the lifting plate.
The jacking rod, the lifting rotating pin and the rear sliding block form a lever structure with the lifting rotating pin as a rotating center, and the pressing force between the rear sliding block and the steel plate base metal at the welding seam is preliminarily adjusted by adjusting the jacking force of the jacking rod.
The front and back micro-adjusting mechanism is used for finely adjusting the front and back positions of the lifting plate and the back sliding block. The front and back fine adjustment mechanism is preferably of a gear rack structure and specifically comprises a front and back guide rod 751, a front and back slide block 752 and a front and back adjustment hand wheel 753. One end of the front and back guide rod is arranged on the vehicle body, and one side of the front and back guide rod is provided with a front and back rack. The front and back sliding blocks are sleeved on the periphery of the front and back guide rods in a sliding mode, and front and back gears meshed with the front and back teeth are arranged in the front and back sliding blocks. The bottom of the hand wheel shaft of the front and back adjusting hand wheel is connected with the front and back gears.
The left-right adjusting mechanism is used for adjusting the left-right position of the rear sliding block, so that the rear sliding block is aligned with the welding line left and right. The left-right adjusting mechanism is also preferably of a rack-and-pinion structure, and specifically includes a left-right slider 761 and a left-right adjusting handwheel 762. Left and right racks 771 are arranged on the top surface of the vehicle body connecting plate adjacent to the lifting plate. The left and right slide blocks are slidably sleeved on the vehicle body connecting plate at the periphery of the left and right racks, and the left and right slide blocks are connected with the lifting mounting plate. Left and right gears meshed with the left and right racks are arranged in the left and right sliding blocks, and hand wheel shafts of the left and right adjusting hand wheels are connected with the left and right gears.
The rear slide cooling mechanism includes a cooling flow passage and two cooling water pipes 78. The cooling flow channel is arranged in the rear sliding block, and the two cooling water pipes are symmetrically arranged at the tops of the rear sliding blocks at the two sides of the lifting plate.
Each cooling water pipe 78 includes, from bottom to top, a metal pipe 781, a flexible pipe 782, and a stainless steel pipe 783.
The bottom end of the metal pipe is communicated with the cooling flow channel, and the top end of the metal pipe is communicated with the flexible pipe; wherein, the metal tube is a copper tube, and is preferably a red copper tube; the flexible tube is preferably a high-temperature-resistant pressure-resistant silicone tube; the top ends of the stainless steel pipes are all installed on the top of the lifting plate or the vehicle body connecting plate through water pipe supporting frames.
The cooling water pipe can be used for self-adaptively and finely adjusting the back slider to meet the requirement of forced forming welding, so that the quality of a welding seam is stable. The bottom copper tube is convenient to be welded with the copper rear sliding block into a whole, the middle high-temperature-resistant and pressure-resistant silicone tube can be used for introducing cooling water and is flexible, the upper stainless steel tube is convenient to be processed into a bent tube passing plate and a pagoda joint while the material cost is reduced, and the bent tube passing plate and the pagoda joint are externally connected with a water inlet and outlet pipe of the cooling water.
The top ends of the flexible pipes are all installed on the top of the lifting plate or the vehicle body connecting plate through water pipe supporting frames. The water pipe support frame is preferably connected with the Z-shaped vehicle body connecting plate through bolts, two cooling water pipes are fixed, and particularly, the water pipe connected with the two flexible connection metal pipes can be prevented from pulling the metal pipes due to the gravity effect when the top position is welded, so that the back sliding block and the base metal plate are not tightly attached, and the top position can not be welded due to the overflow of molten metal.
A self-adaptive double-sided water-cooling electro-gas welding method for reducing welding slag comprises the following steps.
Step 1, installing a track: and (4) installing the rail on the steel plate base material on one side of the welding line in an adsorption manner, wherein the rail is parallel to the welding line. One side of the track is provided with a walking rack.
Step 2, assembling a welding trolley: and assembling the driving clutch mechanism, the front slide block, the rear slide block pressing and adjusting mechanism, the welding gun and the rear slide block cooling mechanism with the vehicle body. Two cooling water pipes in the rear sliding block cooling mechanism are connected with a circulating water system.
Step 3, mounting the welding trolley and the rail: two groups of guide wheels arranged on the protective cover are closely attached to one side of the top end of the track, and meanwhile, the driving wheels are meshed with the traveling rack on one side of the track. And then, the guide sliding plate is pushed to slide towards the track by adopting the quick clamping assembly, and two groups of guide wheels positioned on the guide sliding plate are tightly attached to the other side of the top end of the track.
The quick clamping method is preferably as follows: the clamping handle is rotated, the guide shaft rotates, the spring stretches and retracts to drive the connecting rod to move, and then the guide sliding plate and the two groups of guide wheels positioned on the guide sliding plate are driven to slide towards the track, and the two groups of guide wheels are clamped on two sides of the track.
And 4, self-adaptive compression of the rear sliding block, which comprises the following steps:
And step 42, roughly adjusting the front and rear positions of the rear sliding block.
According to the thickness of the steel plate base material, the lifting rotating pin is inserted into the pin hole and one of the lifting holes in a rotating mode. The invention can adapt to the self-adaptive welding of the base material thickness of the steel plate of 8-50 mm.
And then, a certain jacking force is applied to the top end of the pulling plate by the jacking rod, so that the sliding block connecting plate of the pulling plate is parallel to the surface of the base metal plate, the pressing force of the sliding block connecting plate is ensured to vertically act on the rear sliding block, and the sliding block connecting plate is tightly attached to the surface of the base metal plate.
The pulling plate and the rear sliding block take the pulling rotating pin as a rotating center, and are compressed on the rear side surface of the welding line in a self-adaptive manner, so that the front and rear positions of the rear sliding block are roughly adjusted.
Step 5, compressing the front sliding block: the front sliding block is adjusted to correspond to the center of the to-be-welded seam through the front sliding block adjusting mechanism and is tightly attached to the front side faces of the steel plate base metal on the two sides of the welded seam.
And 7, adjusting and setting welding gun parameters: the welding angle (preferably 8-12 degrees) between the welding torch head and the steel plate base metal, the distance of the welding wire extending into the welding seam, and the welding swing amplitude and the swing frequency are adjusted by the control box 90. Meanwhile, the welding current, voltage and dry elongation are adjusted according to the thickness of the steel plate base material.
Step 8, welding: and when the welding starts, the clutch assembly in the driving clutch mechanism resets, and the walking motor controls the driving wheel to walk along the walking rack of the track until the welding of the whole welding seam is completed. During welding, the generated welding slag overflows from the bottoms or the side walls of the front sliding block and the rear sliding block.
According to the invention, the rear sliding block and the rear sliding block pressing and adjusting mechanism are arranged, so that the rear sliding block can still be well attached to the steel plate base metal on two sides of the top end of the welding seam when the top end of the welding seam is welded, the automatic welding of the whole welding seam is completed, and no welding height dead angle is left. Furthermore, the front and back coarse adjustment mechanism, the front and back fine adjustment mechanism, the jacking screw and the two soft connection metal pipes work together in a coordinated mode, the welding of the plate thickness in a large range of 8-50mm can be adapted, the back sliding block and the surface of the base metal plate can be tightly attached in a front and back mode, the tightness is moderate, and the back sliding block and the surface of the base metal plate can follow a vehicle body.
The vertical butt weld groove plate has large span (8-50 mm), when the groove group has the problems of edge staggering, front and back inclination, left and right rotation and the like, three lifting hole positions on the lifting plate are adjusted to roughly position the front and back positions of the back sliding block, the front and back positions of the back sliding block are finely adjusted by rotating a front and back adjusting mechanism through a knob, a jacking screw rod is rotated, the lifting component is ensured to be parallel to a welding bead by utilizing the lever principle, and therefore the pressing force of the lifting component is ensured to vertically act on the back sliding block.
In addition, the water pipe support frame firmly fixes two cooling water pipes, overcomes the problem that the back slider is not tightly attached to the plate surface due to the gravity action of an external water pipe, and accordingly welding of the top is completed. Finally, one-time forming of the single-side welding and the double-side welding of the vertical butt welding seam is realized, and the welding quality and the welding efficiency are improved.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the details of the embodiments, and various equivalent modifications can be made within the technical spirit of the present invention, and the scope of the present invention is also within the scope of the present invention.
Claims (10)
1. The utility model provides a dedicated back slider of two-sided liquid cooling formula electro-gas welding equipment compresses tightly adjustment mechanism which characterized in that: comprises a vehicle body connecting plate, a lifting plate, a front and rear coarse adjusting mechanism, a front and rear fine adjusting mechanism and a left and right adjusting mechanism;
one end of the vehicle body connecting plate is arranged on a vehicle body of the double-sided liquid-cooled gas electric vertical welding equipment;
the bottom end of the lifting plate is arranged at the surface center line position of the rear sliding block, and the front side of the top end of the lifting plate is connected with the vehicle body connecting plate through the lifting mounting plate;
the front and rear coarse adjusting mechanism comprises a lifting rotating pin, a lifting hole, a pin hole and a tightening rod; the lifting hole is arranged on the lifting plate corresponding to the lifting mounting plate, the pin hole is arranged on the lifting mounting plate, and the lifting rotating pin is rotatably inserted in the pin hole and the lifting hole; the jacking rod is used for jacking the top end of the side wall surface of the lifting plate matched with the lifting mounting plate in the front-back direction; the jacking rod, the lifting rotating pin and the rear sliding block form a lever structure with the lifting rotating pin as a rotating center, and the pressing force between the rear sliding block and the steel plate base metal at the welding seam is preliminarily adjusted by adjusting the jacking force of the jacking rod;
the front and rear micro-adjusting mechanism is used for finely adjusting the front and rear positions of the lifting plate and the rear slide block;
the left-right adjusting mechanism is used for adjusting the left-right position of the rear sliding block, so that the rear sliding block is aligned with the welding line left and right.
2. The rear slide pressing adjustment mechanism for a double-sided liquid-cooled gas-electric welding apparatus according to claim 1, characterized in that: the jacking rod is a jacking screw rod, and the side wall surface of the lifting plate matched with the lifting mounting plate is a vertical surface; the tightening bolt is in threaded connection with the lifting mounting plate and is tightly pressed on the top end of the vertical surface of the lifting plate.
3. The rear slide pressing adjustment mechanism for a double-sided liquid-cooled gas-electric welding apparatus according to claim 1, characterized in that: the plurality of lifting holes are arranged on the lifting plate corresponding to the lifting mounting plate in the front-back direction; and rotatably inserting the lifting rotating pin into the pin hole and one of the lifting holes according to the thickness of the steel plate base material.
4. The rear slide pressing adjustment mechanism for a double-sided liquid-cooled gas-electric welding apparatus according to claim 1, characterized in that: the number of the lifting holes is three, and the first lifting hole, the second lifting hole and the third lifting hole are respectively arranged along the front direction and the rear direction; wherein the first lifting hole, the second lifting hole and the third lifting hole are respectively suitable for steel plate base materials with the thicknesses of 8-20mm, 20-40mm and 40-50 mm.
5. The mechanism for adjusting the pressing force of the rear slide block exclusively used for the double-sided liquid-cooled gas-electric welding apparatus according to claim 3, wherein: a cooling flow channel is arranged in the rear sliding block, and the top of the rear sliding block positioned at the two sides of the lifting plate is respectively provided with a cooling water pipe; each cooling water pipe comprises a metal pipe, a flexible pipe and a stainless steel pipe from bottom to top respectively; the bottom end of the metal pipe is communicated with the cooling flow channel, and the top end of the metal pipe is communicated with the flexible pipe.
6. The mechanism for adjusting the pressing force of the rear slide block exclusively used for the double-sided liquid-cooled gas-electric welding apparatus according to claim 5, wherein: the metal tube is a copper tube, and the flexible tube is a high-temperature-resistant and pressure-resistant silicone tube.
7. The mechanism for adjusting the pressing force of the rear slide block exclusively used for the double-sided liquid-cooled gas-electric welding apparatus according to claim 5, wherein: the stainless steel pipes at the top end are all arranged on the top of the lifting plate or the vehicle body connecting plate through water pipe supporting frames.
8. The rear slide pressing adjustment mechanism for a double-sided liquid-cooled gas-electric welding apparatus according to claim 1, characterized in that: the front and back fine adjustment mechanisms and the left and right adjustment mechanisms are both in a gear rack structure.
9. The rear shoe hold-down adjusting mechanism for a double-sided liquid-cooled gas-electric welding apparatus according to claim 8, characterized in that: the front and back fine adjustment mechanism comprises a front and back guide rod, a front and back slide block and a front and back adjustment hand wheel; one end of the front and rear guide rod is arranged on the vehicle body, and one side of the front and rear guide rod is provided with a front and rear rack; the front and rear sliding blocks are sleeved on the peripheries of the front and rear guide rods in a sliding manner, and front and rear gears meshed with the front and rear teeth are arranged in the front and rear sliding blocks; the bottom of the hand wheel shaft of the front and back adjusting hand wheel is connected with the front and back gears.
10. The rear shoe hold-down adjusting mechanism for a double-sided liquid-cooled gas-electric welding apparatus according to claim 8, characterized in that: the left-right adjusting mechanism comprises a left-right slide block and a left-right adjusting hand wheel; a left-right rack is arranged on the top surface of the vehicle body connecting plate adjacent to the lifting plate; the left and right slide blocks are slidably sleeved on the vehicle body connecting plate at the periphery of the left and right racks and are connected with the lifting mounting plate; left and right gears meshed with the left and right racks are arranged in the left and right sliding blocks, and hand wheel shafts of the left and right adjusting hand wheels are connected with the left and right gears.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010923619.5A CN112059369B (en) | 2020-09-04 | 2020-09-04 | Dedicated back sliding block of two-sided liquid cooling formula electrogas welding equipment compresses tightly adjustment mechanism |
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|---|---|---|---|
| CN202010923619.5A CN112059369B (en) | 2020-09-04 | 2020-09-04 | Dedicated back sliding block of two-sided liquid cooling formula electrogas welding equipment compresses tightly adjustment mechanism |
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| CN112059369A true CN112059369A (en) | 2020-12-11 |
| CN112059369B CN112059369B (en) | 2022-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117798566A (en) * | 2024-02-29 | 2024-04-02 | 交城县天晴机械铸造有限公司 | Double-sided welding equipment for longitudinal weld joint |
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| CN102990202A (en) * | 2012-11-30 | 2013-03-27 | 大连船舶重工集团有限公司 | Equipment for realizing vertical electro-gas welding by using water-cooled type back slide block |
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| DE10138054A1 (en) * | 2001-08-03 | 2003-02-13 | Maschb Horn Gmbh | Frame production unit, e.g. for a frame composed of profiled members, comprises stand, welding head, transport unit, receiving unit, sliders and slider stops |
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| CN102990202A (en) * | 2012-11-30 | 2013-03-27 | 大连船舶重工集团有限公司 | Equipment for realizing vertical electro-gas welding by using water-cooled type back slide block |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112059369B (en) | 2022-04-05 |
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