Disclosure of Invention
Therefore, the welding tool fixture for manufacturing the steel structure for the petroleum engineering can effectively solve the problems that the traditional clamping equipment can only clamp and fix H-shaped steel with specific specifications when the steel structure ridge is welded, the clamping equipment needs to be replaced when steel structure ridges with different specifications need to be manufactured, the working time and manpower and material resources are wasted during replacement, the welding efficiency of the steel structure ridge is reduced, the steel structure ridge with a fixed angle can be manufactured by the traditional fixture usually, the H-shaped steel on two sides is easy to shift during welding, the quality of the steel structure ridge cannot be guaranteed, and the like.
In order to solve the technical problems, the invention specifically provides the following technical scheme: the utility model provides a steel structure preparation welding frock clamp for oil engineering, includes installation basement, slide rail and clamping device, the upper end middle part of installation basement be fixed with the slide rail, be provided with clamping device on the slide rail.
Clamping device include the slidable mounting frame, the bracing piece, place the frame, fixture, stop gear, telescopic link and angle modulation mechanism, left and right sides symmetry slidable mounting on the slide rail has the slidable mounting frame, the upper end middle part of slidable mounting frame is fixed with the bracing piece, the upper end of bracing piece is rotated and is installed and place the frame, it is ascending for the opening to place the frame, (21274) the shape structure, and the both sides wall symmetry of placing the frame is provided with a plurality of evenly distributed's fixture, the one end of placing the frame and keeping away from each other is provided with stop gear, telescopic link between the opposite side between the slidable mounting frame is installed a telescopic link, even there is angle modulation mechanism between a telescopic link, angle modulation mechanism's upper end and the lower terminal surface of placing the frame are connected through normal running fit's mode.
Fixture include the recess, trapezoidal grip block, the slide bar, the arc positioning groove, the square groove, the locating piece, centre gripping spring and drive the branch chain, the symmetry is seted up flutedly on placing the inner wall of frame front and back both sides, install trapezoidal grip block through sliding fit's mode in the recess, the one end that trapezoidal grip block kept away from each other even has the slide bar, the slide bar slides and runs through the lateral wall of placing the frame, a plurality of evenly distributed's arc positioning groove has been seted up to the upper and lower bilateral symmetry of slide bar, the lateral wall of placing the frame is located the upper and lower bilateral symmetry of slide bar and has seted up the square groove, the square groove inner wall has the locating piece of card in the arc positioning groove through centre gripping spring connection, the lower extreme of slide bar even has the drive branch chain.
Preferably, the section of the trapezoid clamping block is isosceles trapezoid, and the opposite side of the trapezoid clamping block is provided with elastic rubber.
Preferably, a push block is arranged on one side, far away from the slide bar.
Preferably, the drive branched chain include L type connecting rod, lead to groove, rack and drive gear, L type connecting rod is installed to the one side that the lower extreme of slide bar carried on the back each other, places the downside of frame and has evenly seted up logical groove, L type connecting rod slidable mounting is led to the inslot, the rack is installed to the opposite side of L type connecting rod, through the drive gear meshing between the rack, drive gear rotates to be installed and leads to the inslot.
Preferably, the two racks are respectively positioned at the upper side and the lower side of the transmission gear.
Preferably, stop gear place board, connecting block and electric putter including slip post, L type, place frame looks dorsal front and back bilateral symmetry slidable mounting and have a slip post, the end of slip post is installed the L type jointly and is placed the board, and the L type is placed under the board terminal surface and is placed the lower terminal surface of frame and be located same horizontal position, the L type is placed the lower extreme of board and is fixed with the connecting block, the connecting block is connected with electric putter's ejecting end, electric putter passes through pedestal mounting and places the lower extreme of frame.
Preferably, the angle adjusting mechanism comprises a working frame, a mounting plate, a second telescopic rod, a first helical gear, a crank, a second helical gear, a screw rod, a sliding block, a limiting chute and an ejector rod, wherein the working frame is connected between the first telescopic rods, the mounting plate is symmetrically fixed on the left side and the right side of the inner wall of the lower side of the working frame, the second telescopic rod is mounted on the mounting plate through a first bearing, the first helical gear is symmetrically mounted on the left side and the right side of the second telescopic rod, the crank is connected with the middle part of the back end of the first helical gear, the crank is movably mounted on the working frame, the second helical gear is meshed with the upper side of the first helical gear, the screw rod is mounted in the middle of the upper end of the second helical gear, the lower side of the screw rod is rotatably arranged on the sliding block, the upper end of the working frame is provided with the limiting chute, the upper side of the screw rod is in threaded connection with the ejector rod, and the upper end of the ejector rod is rotatably connected with the placing frame through a pin shaft, the back of the body of the sliding block is provided with an L-shaped rod, and the lower end of the L-shaped rod is arranged on the crank through a second bearing.
Preferably, the left and right sides symmetry of slide rail up end seted up the return groove, the holding tank has been seted up to the one side symmetry that the downside of slip mounting bracket carried on the back each other mutually, installs the return piece through return spring in the holding tank, return piece joint is in the return inslot.
Compared with the prior art, the invention has the beneficial effects that: 1. the invention designs the fixture for clamping two H-shaped steels through a multi-point clamping method, which can be adaptively adjusted according to the length and the width of the H-shaped steel in the clamping process, maintains the clamping stability of the H-shaped steel, avoids the situation that clamping equipment needs to be replaced when steel structure roofs of different specifications are manufactured, reduces the waste of working time and manpower and material resources, improves the welding efficiency of the steel structure roofs, can stably and synchronously adjust the included angle between the two H-shaped steels after clamping, reduces the offset degree between the two H-shaped steels, ensures that the two H-shaped steels are symmetrically arranged, and ensures the quality of the steel structure roofs.
2. The H-shaped steel is synchronously clamped at the front side and the rear side of the H-shaped steel placed on the placing frame through the clamping mechanism in a multi-point mode, the H-shaped steel is gradually pushed to move towards the middle position in the clamping process to ensure that the welding positions of the H-shaped steel are aligned, and meanwhile, the non-welding end of the H-shaped steel is limited through the limiting mechanism to ensure that the H-shaped steel is suitable for H-shaped steel with different lengths.
3. After the H-shaped steel is clamped, the crank handle can be manually rotated to drive the screw rods on the two sides to synchronously rotate, so that one side, close to each other, of the placing frame is jacked up, the placing frame rotates by taking the upper end of the supporting rod as a rotating center, the function of synchronously rotating the H-shaped steel on the two sides is further realized, the sliding mounting frames on the two sides are pushed to move in opposite directions, the H-shaped steel on the two sides move in opposite directions and are butted, the H-shaped steel on the two sides are symmetrically distributed by synchronously adjusting the angle, and the H-shaped steel can be pushed to close after the angle is adjusted to ensure that the welding positions can be touched together.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Referring to fig. 1 and 2, the welding tool fixture for manufacturing the steel structure for the petroleum engineering comprises an installation base 1, a sliding rail 2 and a clamping device 3, wherein the sliding rail 2 is fixed at the middle part of the upper end of the installation base 1, and the clamping device 3 is arranged on the sliding rail 2.
Refer to fig. 2, the left and right sides symmetry of 2 up end of slide rail seted up back groove 21, holding tank 22 has been seted up to the downside symmetry that mutually backs on the back of the other side of sliding mounting frame 31, install back block 24 through return spring 23 in holding tank 22, back block 24 joint is in back groove 21, in concrete work, after angular adjustment between two H shaped steel 5 is accomplished, the sliding mounting frame 31 that promotes both sides carries out the relative slip on slide rail 2, exert pressure to back block 24 through return spring 23 and make back block 24 hug closely at slide rail 2 up end, promote the sliding mounting frame 31 return in-process of both sides after the welding is accomplished, stop after back block 24 blocks in back groove 21 and continue to promote sliding mounting frame 31, make sliding mounting frame 31 maintain the symmetric state.
Referring to fig. 1 and 2, the clamping device 3 includes a sliding mounting frame 31, a supporting rod 32, a placing frame 33, a clamping mechanism 34, a limiting mechanism 35, a first telescopic rod 36 and an angle adjusting mechanism 37, the sliding mounting frame 31 is symmetrically and slidably mounted on the left and right sides of the sliding rail 2, the supporting rod 32 is fixed in the middle of the upper end of the sliding mounting frame 31, the placing frame 33 is rotatably mounted on the upper end of the supporting rod 32, the placing frame 33 is of a structure of a v-shaped structure with an upward opening, a plurality of uniformly distributed clamping mechanisms 34 are symmetrically arranged on the two side walls of the placing frame 33, the limiting mechanism 35 is arranged at the end of the placing frame 33 away from each other, the first telescopic rod 36 is mounted on the opposite side of the sliding mounting frame 31, the angle adjusting mechanism 37 is connected between the first telescopic rods 36, the upper end of the angle adjusting mechanism 37 is connected with the lower end surface of the placing frame 33 in a rotating fit manner, when the clamping device works specifically, the limiting mechanism 35 is adjusted according to the length of the H-shaped steel 5 to be clamped, then, two pieces of H-shaped steel 5 are respectively placed on the placing frames 33 on the left side and the right side, and opposite sides of the H-shaped steel 5 extend out of the placing frames 33 for a distance, so that the joint of the H-shaped steel 5 can be conveniently welded, then the clamping mechanism 34 is manually pushed to move, the H-shaped steel 5 is gradually pushed to the middle position through the clamping mechanism 34, so that the butt joint positions of the two pieces of H-shaped steel 5 are aligned and the front side and the rear side of the H-shaped steel 5 are clamped, after the clamping is finished, the angle adjusting mechanism 37 is manually adjusted so that the placing frame 33 rotates with the upper end of the supporting rod 32 as the rotating center, the H-shaped steel 5 rotates along with the rotating of the placing frame 33, when the H-shaped steel 5 moves to the proper position, the angle adjusting mechanism 37 is stopped to adjust, the sliding mounting rack 31 is manually pushed to move on the sliding rail 2 to the opposite sides, so that the opposite sides of the H-shaped steel 5 are butted, and when the opposite sides of the H-shaped steel 5 are butted, and welding the joint of the H-shaped steel 5 by external welding equipment.
Referring to fig. 3 and 4, the clamping mechanism 34 includes a groove 341, a trapezoidal clamping block 342, a sliding rod 343, an arc-shaped positioning groove 344, a square groove 345, a positioning block 346, a clamping spring 347 and a driving branch 348, the inner walls of the front and rear sides of the placing frame 33 are symmetrically provided with the groove 341, the trapezoidal clamping block 342 is installed in the groove 341 in a sliding fit manner, one end of the trapezoidal clamping block 342, which is far away from each other, is connected with the sliding rod 343, the sliding rod 343 penetrates through the side wall of the placing frame 33 in a sliding manner, the upper and lower sides of the sliding rod 343 are symmetrically provided with a plurality of evenly distributed arc-shaped positioning grooves 344, the side wall of the placing frame 33, which is located at the upper and lower sides of the sliding rod 343, is symmetrically provided with the square groove 345, the inner wall of the square groove 345 is connected with the positioning block 346 clamped in the arc-shaped positioning groove 344 through the clamping spring 347, and the lower end of the sliding rod 343 is connected with the driving branch 348; the section of the trapezoidal clamping block 342 is isosceles trapezoid, and elastic rubber is arranged on the opposite side of the trapezoidal clamping block 342; when the H-shaped steel 5 is placed into the placing frame 33 from the upper side of the placing frame 33, the lower end of the H-shaped steel 5 pushes the trapezoidal clamping block 342 to move towards the groove 341 and extrude elastic rubber, the trapezoidal clamping block 342 buffers the movement of the H-shaped steel 5 to prevent the H-shaped steel 5 from being directly placed on the placing frame 33 to damage the placing frame 33, when the concave parts at the front side and the rear side of the H-shaped steel 5 are completely clamped into the front side and the rear side of the trapezoidal clamping block 342, the pushing block at one side is manually pushed to move towards the direction close to the H-shaped steel 5, so that the sliding rod 343 at one side slides towards the direction of the H-shaped steel 5 and synchronously drives the arc-shaped positioning groove 344 to move towards the direction close to the H-shaped steel 5, and the arc-shaped positioning groove 344 moving into the square groove 345 is clamped under the matching action of the clamping spring 347 and the positioning block 346 to prevent the sliding rod 343 from returning, the slide bar 343 is gradually close to the H-shaped steel 5 and drives the slide bar 343 on the other side to be synchronously close to the H-shaped steel 5 through the driving branched chain 348, when the slide bar 343 moves to a proper position, the two sides of the H-shaped steel 5 are clamped and fixed through the trapezoid clamping block 342, and the H-shaped steel 5 is gradually pushed to move to a middle position in the moving process of the trapezoid clamping block 342 so as to facilitate the subsequent butt joint work.
Referring to fig. 3 and 4, the driving branched chain 348 includes an L-shaped connecting rod 3481, a through groove 3482, a rack 3483 and a transmission gear 3484, the L-shaped connecting rod 3481 is installed on the opposite side of the lower end of the sliding rod 343, the through groove 3482 is evenly opened on the lower side of the placing frame 33, the L-shaped connecting rod 3481 is slidably installed in the through groove 3482, the rack 3483 is installed on the opposite side of the L-shaped connecting rod 3481, the racks 3483 in the same through groove 3482 are engaged and transmitted through the transmission gear 3484, and the transmission gear 3484 is rotatably installed in the through groove 3482; the two racks 3483 are respectively located at the upper and lower sides of the transmission gear 3484, so that the L-shaped connecting rods 3481 at both sides have a certain height difference to facilitate the operation of the transmission gear 3484, when in operation, in the process of pushing the slide bar 343 at one side to move toward the H-shaped steel 5, the slide bar 343 at the side synchronously drives the L-shaped connecting rods 3481 to slide in the through groove 3482, so that the racks 3483 move accordingly, the rack 3483 at the side drives the transmission gear 3484 to rotate and further drives the racks 3483 at the other side to move in opposite directions, so that the rack 3483 at the other side drives the L-shaped connecting rod 3481 at the other side to move toward the H-shaped steel 5, and further the trapezoid clamping blocks 342 at both sides gradually move toward the middle position to clamp and position the H-shaped steel 5.
Referring to fig. 1 and 2, the limiting mechanism 35 includes a sliding column 351, an L-shaped placing plate 352, a connecting block 353 and an electric push rod 354, the sliding column 351 is symmetrically installed on the front side and the rear side of the opposite back side of the placing frame 33 in a sliding manner, the L-shaped placing plate 352 is installed at the tail end of the sliding column 351 together, the lower end face of the L-shaped placing plate 352 and the lower end face of the placing frame 33 are located on the same horizontal position, the connecting block 353 is fixed at the lower end of the L-shaped placing plate 352, the connecting block 353 is connected with the ejection end of the electric push rod 354, the electric push rod 354 is installed at the lower end of the placing frame 33 through a base, during specific work, the position of the L-shaped placing plate 352 is adjusted according to the length difference of the H-shaped steel 5, and the specific mode is: promote the L type through electric putter 354 and place board 352 and move to suitable position, the L type is placed board 352 and is driven sliding column 351 and slide on placing frame 33 at the in-process of motion, places the motion of board 352 and carries out the auxiliary stay to the L type through sliding column 351, places H shaped steel 5 in placing frame 33 again.
Referring to fig. 2 and 5, the angle adjusting mechanism 37 includes a working frame 371, a mounting plate 372, a second expansion link 373, a first bevel gear 374, a crank 375, a second bevel gear 376, a screw 377, a sliding block 378, a limit sliding chute 379, an ejection rod 380 and an L-shaped rod 381, wherein the working frame 371 is connected between the first expansion links 36, support columns are uniformly arranged on the outer wall of the lower end of the working frame 371 near four corners, the lower end of each support column is mounted on the mounting base 1, the mounting plate 372 is symmetrically fixed on the left side and the right side of the inner wall of the lower side of the working frame 371, the second expansion link 373 is mounted on the mounting plate 372 through a first bearing, the first bevel gear 374 is symmetrically mounted on the left end and the right end of the second expansion link 373, the middle part of the first bevel gear 374 is connected with the crank 375, the crank 375 is movably mounted on the working frame 371, the crank 375 can rotate and slide on the working frame 371, the upper side of the first bevel gear 374 is engaged with the second bevel gear 376, the middle part of the upper end of the second helical gear 376 is provided with a lead screw 377, the lower side of the lead screw 377 is rotatably arranged on a sliding block 378, the upper end of a working frame 371 is provided with a limit sliding groove 379, the sliding block 378 is slidably arranged in the limit sliding groove 379, the upper side of the lead screw 377 is in threaded connection with an ejector rod 380, the upper end of the ejector rod 380 is rotatably connected with a placing frame 33 through a pin shaft, a first telescopic rod 36 and a second telescopic rod 373 are both rods which are not elastic and can not have relative rotation between a movable end and a fixed end, the opposite ends of the sliding block 378 are provided with an L-shaped rod 381, the lower end of the L-shaped rod 381 is arranged on a crank 375 through a second bearing, during specific work, after the H-shaped steel 5 is clamped, the angle adjusting mechanism 37 is adjusted according to an included angle between steel structure ridges 4 to be welded, the crank 375 on one side is manually rotated to synchronously drive the first helical gear 374 on one side to rotate, the helical gear 374 on the side synchronously drives the second telescopic rod 373 to rotate on the mounting plate 372, the second expansion link 373 rotates to enable the first helical gear 374 on the other side to synchronously rotate, the first helical gears 374 on the two sides synchronously rotate to further drive the second helical gears 376 on the two sides to rotate, the second helical gear 376 rotates to drive the screw 377 to rotate along with the screw, the ejector rod 380 is pushed to move upwards to a proper position through the rotation of the screw 377, the placing frame 33 rotates by taking the upper end of the support rod 32 as a rotation center and synchronously drives the opposite side of the H-shaped steel 5 to rotate, the crank 375 stops moving after the opposite side of the H-shaped steel 5 rotates by a proper angle, the sliding mounting frames 31 on the two sides are pushed to relatively slide on the sliding rails 2, the connection part of the H-shaped steel 5 is aligned and then welded, in the sliding process of the sliding mounting frames 31, the mounting frames 31 firstly drive the first expansion link 36 to extend and retract, and simultaneously the mounting frames 31 synchronously drive the placing frames 33 to move in opposite directions, so that the ejector rod 380 drives the screw 377 to move along with the screw, further, the sliding block 378 slides in the limiting sliding groove 379, and the L-shaped rod 381 drives the second expansion rod 373 to expand and contract, so that the placing frame 33 moves in the opposite direction, and the meshing state of the first helical gear 374 and the second helical gear 376 is maintained at all times.
The working steps of the invention are as follows: s1: the L-shaped placing plate 352 is pushed to move to a proper position by the electric push rod 354 according to the length of the H-shaped steel 5 to be clamped, and the L-shaped placing plate 352 is supported in an auxiliary mode through the sliding column 351.
S2: the H-shaped steel 5 is inserted into the placing frame 33 from the upper part of the placing frame 33, the opposite sides of the H-shaped steel 5 extend out of the placing frame 33 for a distance, so that the joint of the H-shaped steel 5 is welded conveniently, the opposite sides of the H-shaped steel 5 are in contact with the L-shaped placing plate 352 at the moment, then the clamping mechanism 34 is manually pushed to move, the H-shaped steel 5 is gradually pushed to the middle position through the clamping mechanism 34, and therefore the butt joint positions of the opposite sides of the H-shaped steel 5 on the two sides are aligned and the front side and the rear side of the H-shaped steel 5 are clamped.
S3: after the clamping is completed, the angle adjusting mechanism 37 is manually adjusted so that the placing frame 33 rotates with the upper end of the support rod 32 as a rotation center, the H-shaped steel 5 rotates along with the rotation of the placing frame 33, and the angle adjusting mechanism 37 is stopped being adjusted when the H-shaped steel 5 moves to a proper position.
S4: after S3, the sliding installation frame 31 is manually pushed to move on the sliding rail 2 in the opposite direction, so that the opposite sides of the H-shaped steel 5 are butted, after the opposite sides of the H-shaped steel 5 are butted, the joint of the H-shaped steel 5 is welded through external welding equipment, and the steel structure ridge 4 is taken down after the welding is finished.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention; any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.