CN102974920A - Special vertical electro-gas welding device - Google Patents
Special vertical electro-gas welding device Download PDFInfo
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- CN102974920A CN102974920A CN2012105070073A CN201210507007A CN102974920A CN 102974920 A CN102974920 A CN 102974920A CN 2012105070073 A CN2012105070073 A CN 2012105070073A CN 201210507007 A CN201210507007 A CN 201210507007A CN 102974920 A CN102974920 A CN 102974920A
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Abstract
The invention discloses a special vertical electro-gas welding device, which comprises a platy frame body (1), wherein the platy frame body (1) is divided into a straight side which is positioned on the back surface of a steel plate (10) to be welded in the application process and a specially-shaped side in the front of the steel plate (10); a wheel shaft (2) runs through the upper part of the frame body on the straight side and is provided with a positioning wheel (3); the lower part of the frame body on the straight side is of a strip shape, and the lower end part of a strip-shaped plate (20) is provided with a back slide block (4) through a hook structure; the positioning wheel and the front end surface of the back slide block stay in the same plane and used for bonding the back parts of the steel plates; and the position on the frame body of the specially-shaped side relatively between the positioning wheel and the back slide block is provided with a guide jacking mechanism for supporting two side steel plates to be welded. The device is specially used for the vertical electro-gas welding, the back slide block and the positioning wheel on the back surface of the steel plate to be welded and the guide jacking wheel on the front surface collectively clamp the steel plate to be welded, a third-generation (3G)-electro-gas welding (EGW) back slide block device and the back slide block move along a weld seam so as to track the weld seam, and the back slide block is guaranteed to be closely bonded with the steel plate in the welding process.
Description
Technical Field
The present invention relates to electric welding equipment, and more particularly to equipment for effecting vertical electrogas welding.
Background
The vertical electro-gas welding is a high-efficiency welding method which is used for sticking a ceramic liner on the back surface of a groove of a parent metal, welding on the front surface of the groove and realizing one-step forming of the front surface and the back surface of a welding seam, and is widely applied to the closure butt welding seam at the straight vertical welding position of a ship body.
FIG. 1 is a schematic diagram of vertical electro-gas welding. Wherein, the back of the welded base material 112 is padded with a ceramic liner 111, the front of the base material 112 is pressed with a slide block 113, the welding torch 114 is sent to the welding seam, the figure shows a slag 115, an electric arc 116, a molten metal 117, a solidified welding seam 118, a protective gas delivery port 119, a cooling water input port 120 and a cooling water discharge port 121.
The ceramic backing 111 selected for the back side in the prior art provides a forced formation of the weld. Since the ceramic liner is a disposable consumable material and the installation construction of the liner is required, the construction cost is increased.
Disclosure of Invention
The invention mainly meets the requirement of completing one-time welding of assembling and closing vertical butt welding seams of a large ship, solves the problem that a back slide block of a 3G EGW (vertical electro-gas welding) is quickly and reliably installed under various working conditions with different plate thicknesses, ensures the back slide block to be tightly attached to a steel plate in real time in the welding process, ensures the welding quality and improves the welding efficiency.
In order to achieve the purpose, the invention provides special vertical electro-gas welding equipment which comprises a plate-shaped frame body, wherein the plate-shaped frame body is divided into a straight edge side positioned on the back surface of a steel plate to be welded and a special-shaped side positioned on the front surface of the plate to be welded in the using stage. Wherein, the upper part of the frame body on the straight side is penetrated with a wheel shaft and is provided with a positioning wheel; the lower part of the frame body on the straight side is strip-shaped, and the lower end part of the strip-shaped plate is hung with a back slide block through a hook-shaped structure; the positioning wheel and the front end face of the back sliding block are positioned in a plane and are used for being attached to the back of a steel plate to be welded; and a guide jacking mechanism for jacking the two sides of the steel plates to be welded is arranged on the frame body on the special-shaped side relative to the position between the positioning wheel and the back sliding block.
The mechanism can preliminarily complete the welding work required by vertical electro-gas welding, and mainly depends on the interaction of the positioning wheel, the guide jacking mechanism and the back sliding block to clamp and support the steel plate to be welded, and under the auxiliary action of the back sliding block, the welding gun realizes the welding work at the welding seam.
The back slide block can also adopt a ceramic liner in the prior art, and in order to achieve the aim of repeated use, the back slide block adopts a cuboid component made of red copper, a cooling water channel is arranged in the back slide block, and the cooling water channel is connected with a cooling water outlet/inlet pipeline.
In addition, the guide jacking mechanism is a hydraulic jacking device or a pneumatic jacking device or a spring jacking device which is fixed on the plate-shaped frame body and is respectively arranged at two sides. In an optimal mode, the guide jacking mechanism is a supporting mechanism (a guide jacking mechanism) arranged in a groove in the middle of the plate-shaped frame body, and specifically comprises a jacking wheel rotating body with a cylindrical middle part and plate-shaped structures at two ends, wherein the outer part of the cylindrical middle part of the jacking wheel rotating body is sleeved in a cylinder at the front end of an elastic jacking device body, the rear part of the elastic jacking device body is a cylinder body perpendicular to the front end cylindrical structure, and a supporting spring is arranged in the cylinder body; the rear end face of the barrel is connected with a distance adjusting screw rod in a screwed mode through threads, and a clamping structure is arranged at the rear end of the distance adjusting screw rod and used for clamping and fixing the distance adjusting screw rod on the plate-shaped frame body. In addition, the plate-shaped structures on two sides of the tightening wheel rotating body are respectively penetrated through the wheel body shaft and provided with a guide tightening wheel; the front end of the guide jacking wheel forms an end face for jacking the steel plate to be welded.
The invention mainly meets the requirement of completing one-time welding of assembling and closing vertical butt welding seams of a large ship, solves the problem that a back slide block of a 3G EGW (vertical electro-gas welding) is quickly and reliably installed under various working conditions with different plate thicknesses, ensures the back slide block to be tightly attached to a steel plate in real time in the welding process, ensures the welding quality and improves the welding efficiency. The equipment is specially used for vertical electro-gas welding, a back slide block and a positioning wheel on the back of a welded steel plate, a front guide jacking wheel and the combined action clamp the welded steel plate, so that a 3G-EGW back slide block device and the back slide block move along a welding line, a welding line tracking effect is realized, and the back slide block is tightly attached to the steel plate in the welding process.
The invention mainly carries out design, manufacture and welding process tests around the back sliding block, aims to research and develop a 3G EGW back sliding block mechanism which can be repeatedly used and is suitable for the welding construction of vertical electro-gas welding, achieves the level that the back welding seam forming is not lower than that of the original disposable ceramic liner, replaces the ceramic liner, and reduces the construction cost.
Drawings
FIG. 1 is a schematic diagram of the principle structure of vertical electro-gas welding.
FIG. 2 is a schematic view of the overall structure of the special apparatus for vertical electro-gas welding of the present invention.
Fig. 3 is a schematic structural view of a plate-shaped frame body of the special vertical electro-gas welding equipment in fig. 2.
Fig. 4 is a schematic structural diagram of an arrangement mode of a guide tightening wheel.
Fig. 5 is a structural diagram of a first state of installation of the elastic tightening device at the rear side of the guide tightening wheel.
Fig. 6 is a structural diagram of a first state of installation of the guide tightening wheel.
Fig. 7 is a structural diagram of a second state of installation of the guide tightening wheel.
Fig. 8 is a structural diagram of a second state of installation of the elastic tightening device at the rear side of the guide tightening wheel.
FIG. 9 is a schematic structural view showing a state where the guide tightening wheel and the rear elastic tightening device thereof are completely installed.
Fig. 10 is a schematic structural view of the back slider in a state of being engaged with the frame body of the apparatus of the present invention.
Fig. 11 is a schematic top view of the structure of fig. 11.
Fig. 12 is a schematic diagram of a right-view structure of the state shown in fig. 11.
FIG. 13 is a schematic structural view of a cooling water circulation system in the special apparatus for vertical electro-gas welding of the present invention.
Fig. 14 is a schematic sectional view taken along line a-a in fig. 13.
Fig. 15 is a schematic sectional view along the direction B-B in fig. 14.
Fig. 16 is a schematic end-side projection configuration (right side) of the configuration shown in fig. 13.
Fig. 17 is a schematic end-side configuration (right-hand side) of the structure shown in fig. 13, showing a clearance fit.
FIG. 18 is a schematic view of a quick connector assembly of the cooling water circulation system.
Fig. 19 is a partially enlarged top view of the positioning wheel of fig. 2.
Fig. 20 is a partially enlarged top view of the guide puller wheel of fig. 2.
Fig. 21 is a partially enlarged top view schematic diagram of the back slider of fig. 2.
Fig. 22 is a schematic structural diagram of the positioning wheel and the guide tightening wheel in fig. 2 working together.
FIG. 23 is a schematic structural diagram of a displacement adjustment assembly of the special vertical electro-gas welding equipment of the present invention.
Fig. 24 is a schematic top view of the structure of fig. 23.
FIG. 25 is a schematic view of the working condition of the guide puller pair when the gap angle between the welded steel plates is small.
FIG. 26 is a schematic view of the working state of the guide puller pair when the gap angle between the welded steel plates is large.
FIG. 27 is a schematic view of the working state of the guide puller pair when the bevel angle of the welded steel plate is large.
FIG. 28 is a schematic view of the working state of the guide puller pair when the bevel angle of the welded steel plate is small.
FIG. 29 is a schematic view of the guide jacking wheel pair working in different plate thicknesses of the welded steel plates.
FIG. 30 is a schematic view of the guiding and tightening wheel for ensuring the alignment between the back slider arm and the groove centerline.
Fig. 31 is a side view of the state shown in fig. 30.
In the figure, a plate-shaped frame body 1, a wheel shaft 2, a positioning wheel 3, a back slide block 4, a guide tightening wheel 5, a rectangular cooling water passing pipe component 6, a sliding chute 8, a mobile construction vehicle 9, a steel plate 10, a wheel shaft 11, a cooling water inlet 12, a cooling water outlet 13, a positioning pin 14, a distance adjusting screw rod 15, a clamping piece 16, a spring 17, an elastic tightening device body 18, a tightening wheel rotating body 19, a strip-shaped plate material 20, a hole 21, an arc 22, a metal conduit 23, an inverted U-shaped hanging body 24, a tightening nut/tightening bolt component 25, a water pipe joint 26, a rubber ring 27, a rectangular pressing block 28, a positioning groove/positioning hole/positioning pin mechanism 29, a disc-shaped handle 30, a pressing rod 31, a rigid body 32, a rubber pad 33, a hanging frame 41, a transverse screw rod 42, a vertical adjusting screw rod 43, a horizontal rotating button 45, a vertical rotating button 46 and, A support limit bracket 55, a plate-shaped structure 56 and a support column 57.
Detailed Description
As shown in fig. 2 and 3, the special vertical electrogas welding equipment comprises a plate-shaped frame body 1, wherein the plate-shaped frame body 1 is divided into two parts, namely a straight side (left side in the figure) positioned on the back of a plate to be welded in the using stage and a special side (right side in the figure) positioned on the front of the plate to be welded. Wherein, the upper part of the frame body at the straight side is provided with a positioning wheel 3 after punching and penetrating the wheel shaft 2; the lower part of the frame body on the straight side is strip-shaped, and the lower end part of the strip-shaped plate 20 is hung with a back slide block 4 through a hook-shaped structure. Correspondingly, the back slide block 4 is provided with a hole-shaped structure used for being hung and connected with the hook-shaped structure of the plate-shaped frame body.
The front end surfaces of the positioning wheel 3 and the back slide block 4 are positioned in a plane and are used for being attached to the back surface of a steel plate 10 to be welded; sometimes, due to reasons such as flatness of the plate, the front end faces of the positioning wheel 3 and the back slider 4 have slight deviation, and the hanging arm generates slight displacement, so that the back slider and the steel plate 10 are ensured to be tightly attached.
As shown in the figure, the frame body 1 on the special-shaped side corresponds to the position between the positioning wheel 3 and the back slide block 4 to form a groove body, and a guide tightening wheel mechanism is arranged in the groove by means of the frame body structure on the special-shaped side.
The setting mode of the guide jacking wheel mechanism is as follows: as shown in fig. 4, on a tightening wheel rotating body 19 with a cylinder in the middle and plate-shaped structures at both ends, a wheel body shaft 11 is respectively penetrated at the plate-shaped structures at both ends, and a guide tightening wheel 5 is arranged through the wheel body shaft 11. The guide and tightening wheel 5 includes portions bridging and abutting both sides of the plate-like structure 56, and a bilaterally symmetrical trapezoidal section is formed on the outer end side of the guide and tightening wheel 5. The angle of the trapezoid is designed to be 120 degrees, so that the outer trapezoid inclined plane of the guide wheel forms an angle of 60 degrees to adapt to the angle change range (50-60 degrees) of the groove of the steel plate to be welded. Furthermore, the thickness of the plate-shaped structure is equivalent to that of the plate-shaped frame body 1, so that both side portions of the guide pinch roller 5 can also straddle both sides of the plate-shaped frame body 1. The cylinder outside at the tight body middle part of top wheel revolves has cup jointed in the cylindric of the tight device body 18 front end in elasticity top, and the rear portion of the tight device body 18 in elasticity top is a perpendicular to the barrel that front end tubular structure set up, set up supporting spring 17 in the barrel (combine shown in figure 2), the rear end side of barrel has connect a distance adjusting screw 15 through the screw soon, for increasing joint strength, the distance adjusting screw stretches into in the barrel, and in order to connect the mode cover soon to have a support column 57 (shown in figure 5), support column 57 one side by spring 17 props up, and the opposite side is leaned on by the top the inboard rear end of barrel. The outer end of the distance adjusting screw rod 15 is provided with a clamping position, and when the device is used, the clamping position is fixed through a clamping piece 16 connected to the frame body 1.
In the using stage, the special device adopts a groove tracking type and adopts a back slide block device form, and the centering of the back slide block and the groove is ensured by tracking the groove through the guide jacking wheel in the mode of combining with the figures 2, 22 and 29. The guide jacking wheel and the welded steel plate groove surface are elastically jacked tightly, two functions of guiding and jacking are considered, and the guide jacking wheel is ensured to be consistent with the groove center line all the time. The groove on the guide jacking wheel is used for clamping the frame body 1 of the back sliding block hanging arm, and the position of the frame body 1 of the hanging arm is restricted to be relatively fixed with the position of the guide jacking wheel, so that the frame body 1 of the hanging arm is ensured to be consistent with the central line of the groove all the time. The back slide block and the positioning wheel on the back of the welded steel plate and the guide jacking wheel on the front face clamp the welded steel plate under the combined action, so that the special equipment and the back slide block move along a welding line, the welding line tracking effect is achieved, and the back slide block is enabled to be tightly attached to the steel plate in the welding process. The guide tightening wheel is in an external trapezoid shape, and a groove is formed in the middle of the guide tightening wheel. Outside trapezoidal being used for the card on the bevel face of being welded the steel sheet, playing and tracking the welding seam effect, the recess in the middle of is used for centre gripping back of the body slider to hang the arm body, restricts it and removes, plays the positioning action. Thereby the guide jacking wheel has three functions of guiding, jacking and positioning.
The double-jacking-wheel mechanism is adopted, so that the alignment of the back sliding block hanging arm and the groove center line is ensured, and the condition that the center line of the plate-shaped frame body is not parallel to the groove center line is effectively prevented. As shown in FIGS. 30-31, the upper and lower guide pinch wheels are positioned to point C and point D, respectively. Because the point 1 and the point 2 are both positioned on the center line of the groove at the position, the center line A of the hanging arm determined by the two points is consistent with the center line B of the groove, the hanging arm is prevented from inclining towards two sides, and therefore the relative position of the back slide block driven by the plate-shaped frame body and a welding line is ensured to be centered.
As shown in fig. 25-29, the elastic tightening mechanism is matched with the trapezoidal tightening wheel to ensure the adaptability of the device to the working conditions of different plate thicknesses, different assembly gaps and different groove angles. FIG. 29 is a schematic diagram of adaptability under different plate thickness conditions. FIGS. 25 and 26 are adaptive plots for different lash conditions. Fig. 27 and 28 are schematic diagrams of adaptability under different bevel angle conditions.
As shown in fig. 5-9, in the elastic tightening mechanism, the tightening wheel rotating body and the tightening mechanism body can be rotatably folded at an angle of +/-90 degrees, so that the device can be quickly installed when in use; the pressure adjusting handle can conveniently realize the quick adjustment of the jacking degree. In fig. 5, the guide tightening wheel rotary body is laterally and rotatably folded with the body (e.g. in the direction of the arrow in the figure, the guide tightening wheel rotary body can be maximally and rotatably folded by 90 °). In fig. 6, the guide tightening wheel is inserted into the groove of the boom body 1 in an inclined direction (as shown by an arrow in the figure). In fig. 7, the guide tightening wheel is rotated to a vertical position (in the direction of the arrow in the figure); the groove of the upper and lower guide tightening wheels clamps the hanging arm body; then the guide tightening wheel is pushed to the steel plate to tighten. In fig. 8, the body and the rotary body of the guide tightening wheel are turned back to their original positions (as shown by the arrows in the figure). As in fig. 9, the positioning seat is clamped into a groove on the back slider hanging arm; the disc-shaped handle 30 of the distance adjusting screw 15 is rotated to adjust the proper tightening degree.
As shown in fig. 13-17, a rectangular cooling water cross pipe member 6 is fixed on the special-shaped side frame body 1 between the guide tightening wheel 5 and the positioning wheel 3. The rectangular cooling water crossing pipe member 6 is of a rectangular structure as a whole, two cooling water channels which are parallel up and down and run forward and backward are formed in the rectangular cooling water crossing pipe member 6, and connecting holes which are formed in the front end and the rear end of each cooling water channel are formed in the surfaces, located on the two sides of each cooling water channel, of the rectangular cooling water crossing pipe member 6 and perpendicular to the cooling water channels. Wherein, the connecting holes at the rear end of the cooling water channel are positioned on the two side surfaces of the rectangular cooling water crossing pipe member 6, and the connecting holes at the front end of the cooling water channel are positioned on the same side surface of the rectangular cooling water crossing pipe member 6; so that the front end and the rear end of each cooling water passage are respectively communicated with an independent connecting hole on the side surface of the rectangular cooling water passing pipe member 6. In addition, the rear ends of the two cooling water channels are respectively connected with a metal guide pipe 23 below the positioning wheel 3 in a communication mode, the two metal guide pipes 23 are connected to the internal channel of the back sliding block 4 and are mutually communicated in the body of the back sliding block 4 by the internal channel, so that the circulation of cooling water is formed, and the cooling of the back sliding block is realized.
The front ends of the two cooling water passages are supplied with cooling water by a quick coupling assembly connected to the rectangular cooling water passing pipe member 6. As shown in fig. 18, the quick coupling assembly includes a box-like rigid body 32 fitted over the front end of the rectangular cooling water passing pipe member 6. The rigid body 32 is penetrated and clamped with two water pipe joints 26 corresponding to the positions of the connecting holes at the front end of the rectangular cooling water passing pipe member 6, the two water pipe joints 26 are respectively connected with the connecting holes at the front end in a sealing way through a rubber ring 27, and the two water pipe joints respectively correspond to the cooling water inlet 12 and the cooling water outlet 13 (shown in figure 2); the cooling water inlet is connected with a water source through a plastic hose. The other side surface of the rectangular cooling water passing pipe member 6 is supported by the rectangular pressing block 28 through a rubber pad 33, wherein the rubber pad 33 and the rectangular pressing block 28 are both arranged in a square frame of the rigid body 32, a pressing rod 31 is bolted and fixed on the other side of the rectangular pressing block 28, the pressing rod 31 is arranged on the rigid body 32 in a threaded hole screwing mode, and the outer end of the pressing rod 31 is connected with the disk-shaped handle 30. In the figure, reference numeral 29 denotes the positions of the positioning grooves, positioning holes, and positioning pin mechanisms. According to the invention, the circulating water pipe between the water-cooling back sliding block and the rectangular cooling water through pipe is made of metal, so that the cooling water pipe is prevented from being damaged due to arc heat in the welding process; a gap shaft hole connecting mechanism is arranged between the plate-shaped frame body and the rectangular cooling water through pipe, so that proper sliding between the back sliding block and the hanging arm is realized, and the back sliding block is tightly attached to the steel plate in real time when the hanging arm is enabled to generate micro displacement due to the inequality of the steel plate and the like.
The quick joint device of the cooling water pipe ensures that the rectangular cooling water passing pipe is quickly, conveniently and reliably connected with the water pipe of the circulating water tank. A back slide block water-cooling pipe quick joint device is composed of a side-by-side pipe joint, a compression rotary rod, a compression head and a rigid body. The pressing rotary rod is provided with a positioning groove, the pressing head is provided with a positioning hole, a positioning pin and a rubber pad, and the side-by-side pipe fitting joints are provided with sealing rubber rings. The compressing rotary rod in the device is screwed into the side screw hole of the rigid body, the compressing head is arranged in the compressing head, the positioning pin is nailed into the positioning hole formed in the compressing head to form a whole, the compressing rotary rod is rotated to compress and loosen the compressing head, and linkage is achieved. Because the positioning pin and other mechanisms are arranged in the body of the pressing head, the rubber pad can be arranged on the pressing surface of the pressing head; one end of a water pipe joint of the device is connected with an input and output rubber pipe of cooling water, when the device is idle, a pressing rotary rod is screwed, and the port of the water pipe is sealed by a rubber pad arranged on a pressing head, so that sundries are prevented from entering a water pipe system; when the water cooling device is used, the rectangular water cooling pipe is inserted into the back slider water cooling pipe quick connector device from the side surface, the water pipe connectors arranged side by side are inserted into the side surface inlet and outlet holes of the rectangular cooling water pipe, and the connection between the water pipe connectors and the rectangular water pipe is realized by rotating the pressing rotary rod; the water pipe joint is provided with a groove and a sealing rubber ring, so that reliable sealing connection of a cooling water input and output joint system is realized. The device is small in size, convenient to install and use, convenient to operate and safe and reliable in connection, and is proved to be a quick, convenient and reliable back slider water-cooling pipe quick connector device through test and practical use verification.
The preferable fixing mode of the rectangular cooling water passing through the pipe member 6 and the special-shaped side frame body 1 is as follows: as shown in fig. 15-17, support limit brackets 55 are welded on two sides of the rectangular cooling water passing pipe member 6, the limit brackets 55 are connected with other parts of the frame body 1, the limit brackets 55 and the rectangular cooling water passing pipe member 6 are further penetrated together by a positioning pin 14, wherein the positioning pin 14 and a pin hole in the rectangular cooling water passing pipe member 6 are fixed in a clearance fit manner, and the size of the clearance is ± 0.5 mm. Meanwhile, a gap d is also reserved between the rectangular cooling water passing pipe member 6 and the limiting bracket. That is, a gap shaft hole connecting mechanism is arranged between the plate-shaped frame body and the rectangular cooling water passing pipe member 6, so that proper sliding between the plate-shaped frame bodies is realized, and real-time close fitting between the back sliding block and the steel plate is ensured when the hanging arm generates micro displacement due to the inequality of the steel plate and the like. In the figure, symbol d indicates a gap.
Horizontal spout 8 (shown in fig. 2) is seted up on the upper portion of plate-shaped support body 1, through displacement adjustment subassembly has been connected to spout 8, displacement adjusting device is as shown in fig. 23 and fig. 24, including linking firmly in the stores pylon 41 on removing construction car 9 (shown in fig. 2), has seted up first horizontal groove in the stores pylon, and the level sets up disk horizontal rotation button 45 in the first horizontal groove, horizontal rotation button 45 has connect a vertical adjusting screw 43 through the screw hole soon, the inverted U type string body 24 has been connected to the lower extreme of vertical adjusting screw 43, inverted U type string body 24 is through screwing the nut, screwing bolt assembly 25 joint in the upper portion spout 8 of plate-shaped support body 1. The positions of the inverted U-shaped hanging body 24 and the sliding groove 8 can be adjusted by screwing the nut and the bolt. In addition, an external sleeve is sleeved in the middle of the vertical adjusting screw 43, and the sleeve is placed in a second horizontal groove formed in the hanging rack and moves in the groove; and the outside of the sleeve is connected with a transverse screw rod 42 parallel to the second horizontal groove, one end of the transverse screw rod 42 is screwed with a disc-shaped vertical rotating button 46, and the vertical rotating button 46 is embedded in a vertical groove body arranged in the hanging rack 41. In the figure, reference numeral 47 denotes a fixing lever 47 for connecting the cart.
The special equipment selects the three-dimensional adjusting device, is convenient for quick installation and three-dimensional position adjustment of the back slide block device, and ensures real-time close fitting of the back slide block and the steel plate in the welding process. The three-dimensional adjusting device is formed by combining a sliding body, a back slide block suspension rod (provided with a Z-direction adjusting shaft), a transverse adjusting rod, a fixed rod and two adjusting knobs into a whole. The three-dimensional adjusting device is fixed with automatic welding equipment through a fixing rod, and a back sliding block and the welding equipment are driven to synchronously advance in the welding process; the Y-direction adjusting shaft arranged on the back sliding block suspension rod is assembled with the follow-up sliding groove of the sliding block mechanism, so that the follow-up adjustment in the plate thickness direction (Z direction) is automatically performed in the welding process while the sliding block mechanism is supported; during installation, according to the position of the equipment relative to a welding line, the upper position and the lower position of the back sliding block can be continuously adjusted through the back sliding block suspension rod and the arranged knob, and the Y-direction position is accurately determined; the position of the back sliding block mechanism in the horizontal direction (X direction) is adjusted through a transverse adjusting rod and an adjusting knob thereof which are linked with the back sliding block suspension rod. The device has small volume, convenient installation and use, convenient adjustment and continuous and adjustable precision, and is proved to be a high-efficiency, precise and reliable three-dimensional adjusting device through test and practical use verification.
As shown in fig. 10-12, the back slider 4 is a rectangular parallelepiped with a vertical groove on the upper portion of the back, and the strip-shaped plate 20 on the lower portion of the straight side of the frame 1 is limited in the groove when in use. The hook-shaped structure at the lower part of the straight side of the frame body 1 is positioned in the hole 21 at the back of the back slide block and is also fixed in a clearance fit way; that is to say, adopt the shaft hole that has the clearance to be connected between back slider and the string arm to leave suitable clearance between the corresponding recess of string arm pole portion and back slider, reach back slider position that can suitably slide, guarantee even string arm produces little shake, do not influence the closely laminating between back slider and the welded steel sheet, guarantee that welding process is stable. As shown in fig. 11, the front surface of the back slider 4 is provided with a trapezoidal groove, the corners of the groove body adopt arc transition 22, and the trapezoidal groove reserves a slag storage space in the welding process, so as to ensure that the welding position of the welding seam is in a transition smooth form.
In addition, back slider 4 is made by red copper material, is equipped with the inside cavity that is used for cooling water circulation and the business turn over water passageway of being connected with external connection cooling water circulation system in.
According to the device, the trapezoidal forming groove is arranged on the back sliding block body, a slag retention space in the welding process is reserved, and the smooth initial transition of welding toes of a welding seam is ensured; the back sliding block is connected with the hanging arm through a shaft hole with a gap, a proper gap is reserved between the rod part of the hanging arm and the corresponding groove of the back sliding block, the back sliding block can slide properly, even if the hanging arm generates micro-vibration, the tight fit between the back sliding block and a welded steel plate is not influenced, and the stability of the welding process is ensured.
In an optimal mode, the overall thickness of the device frame body 1 is only 6mm, the limit of the minimum use gap is reduced, and the use requirement is met; the rectangular cooling water passes through the pipe mechanism, and the problem of cooling water circulation of the back slide block under the working condition of small clearance (6 mm) is solved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (4)
1. The special vertical electro-gas welding equipment is characterized by comprising a plate-shaped frame body (1), wherein the plate-shaped frame body (1) is divided into a straight side positioned on the back of a steel plate (10) to be welded and a special-shaped side positioned in front of the steel plate (10) to be welded in the using stage; wherein,
the upper part of the frame body on the straight side is penetrated with a wheel shaft (2) and is provided with a positioning wheel (3); the lower part of the frame body on the straight side is strip-shaped, and the lower end part of the strip-shaped plate (20) is hung with a back slide block (4) through a hook-shaped structure;
the front end surfaces of the positioning wheel (3) and the back sliding block (4) are positioned in a plane and are used for being attached to the back of a steel plate (10) to be welded;
and a guide jacking mechanism for jacking the two sides of the steel plates (10) to be welded is arranged on the frame body (1) on the special-shaped side relative to the position between the positioning wheel (3) and the back sliding block (4).
2. The special equipment for vertical electro-gas welding according to claim 1, wherein the back slide block (4) is made of red copper and is in a cuboid shape, a cooling water channel is arranged in the back slide block, and the cooling water channel is connected with an external cooling water outlet/inlet pipeline.
3. The special vertical electro-gas welding equipment according to claim 1 or 2, characterized in that the guiding and jacking wheel mechanism is a hydraulic jacking device or a pneumatic jacking device or a spring jacking device which is fixed on the plate-shaped frame body (1) and is respectively arranged at two sides.
4. The special vertical electro-gas welding equipment according to claim 1 or 2, characterized in that the guiding and jacking mechanism is a guiding and jacking mechanism arranged in a groove body in the middle of the plate-shaped frame body (1);
the elastic jacking device comprises a jacking wheel rotating body (19) with a cylindrical middle part and plate-shaped structures (56) at two ends, wherein the outer part of the cylindrical middle part of the jacking wheel rotating body (19) is sleeved in a cylinder at the front end of an elastic jacking device body (18), the rear part of the elastic jacking device body (18) is a cylinder body which is vertical to the cylinder structure at the front end, and a supporting spring (17) is arranged in the cylinder body; the rear end face of the barrel is screwed with a distance adjusting screw rod (15) through a threaded hole, and the rear end of the distance adjusting screw rod (15) is provided with a clamping structure for clamping and fixing the distance adjusting screw rod on the plate-shaped frame body (1);
the plate-shaped structures (56) at the two sides of the tightening wheel rotating body (19) are respectively penetrated through the wheel body shaft (11) and provided with a guide tightening wheel (5); the front end of the guide jacking wheel (5) forms an end face for supporting the steel plate (10) to be welded.
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| CN201210507007.3A CN102974920B (en) | 2012-11-30 | 2012-11-30 | Special vertical electro-gas welding device |
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| CN201210507007.3A CN102974920B (en) | 2012-11-30 | 2012-11-30 | Special vertical electro-gas welding device |
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| CN102974920B CN102974920B (en) | 2015-07-15 |
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| CN102974920B (en) | 2015-07-15 |
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