A special positioner for welding structure members of a crawler crane

Abstract

The present application relates to the technical fields of welding displacement equipment, and discloses a special displacement device for welding structure of crawler crane, which comprises a main body, two electric racks fixedly connected to the top of the main body, a rotating rack rotatably connected between the two electric racks, a motor fixedly connected to the bottom of the rotating rack, an output end of the motor penetrating through the top outer wall of the rotating rack and extending to the outside, a gear fixedly connected to the extending end of the output end of the motor, a round hole provided in the top of the rotating rack, a plurality of Z-shaped grooves provided in the inner wall of the round hole, and a fixed frame fixedly connected to the top of the rotating rack. The downward pressure generated by the arc-shaped plate on the structure can enhance the stability of the structure on the workbench when the workbench rotates, and reduce the sliding or displacement phenomenon caused by the inertial force generated by vibration or rotation during the welding process, thereby improving the stability of the structure during welding and improving the welding efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding displacement equipment, in particular to a special displacement device for welding structural parts of a crawler crane. BACKGROUND

[0002] The crawler crane is a heavy lifting equipment widely used in the fields of construction, port and mine. In large construction projects, it is used for lifting heavy construction materials such as steel structures and concrete prefabricated parts; in the port, it is used for loading and unloading large cargoes and containers; in the mine, it is used for transporting heavy ore equipment, etc.

[0003] When the structural parts of the crane are welded, they need to be clamped on the displacement device to keep stable during welding. When clamping the truss structural parts on the crane, the existing devices generally clamp the truss on both sides by two clamps controlled by bolts to move relative to each other. Since there are many gaps and cylindrical structures on the truss structure, the contact points and contact area with the clamp are relatively small when clamped, which can easily cause the truss to slide and displace when rotating during welding, affecting the welding efficiency. SUMMARY

[0004] The purpose of the present application is to provide a special displacement device for welding structural parts of a crawler crane to solve the problems raised in the background.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The present application is a special displacement device for welding structural parts of a crawler crane, comprising a main body, two electric racks fixedly connected to the top of the main body, a rotating rack rotatably connected between the two electric racks, a motor fixedly connected to the bottom of the rotating rack, the output end of the motor penetrating through the top outer wall of the rotating rack and extending to the outside, a gear fixedly connected to the extension end of the motor output end, a circular hole opened in the top of the rotating rack, a plurality of Z-shaped grooves opened in the inner wall of the circular hole, a fixed frame fixedly connected to the top of the rotating rack, and further comprising:

[0007] A clamping mechanism, comprising a workbench rotatably connected to the top of the fixed frame, a circular groove opened in the top of the workbench, an inner ring fixedly connected in the circular groove, a tooth ring fixedly connected to the bottom of the workbench, the tooth ring being meshingly connected with the gear, a plurality of return springs fixedly connected to the top of the inner ring, a sliding frame fixedly connected to one end of the plurality of return springs away from the inner ring, the sliding frame being slidingly connected to the inner wall of the circular groove.

[0008] The rotating mechanism comprises a sawtooth ring rotatably connected inside the annular groove, the bottom of the sawtooth ring is fixedly connected with a plurality of auxiliary springs, the end of the auxiliary springs away from the sawtooth ring is fixedly connected with the inner wall of the annular groove, the side of the sawtooth ring close to the auxiliary springs is fixedly connected with a plurality of right-angle rods, the end of the right-angle rods away from the sawtooth ring is slidably connected inside the Z-shaped groove, and the inner wall of the sawtooth ring is provided with an inner shaft fixedly connected inside the arch-shaped cylinder.

[0009] Further, the top of the sliding frame is provided with a plurality of sliding grooves, the outer surface of the sliding frame is provided with a plurality of arc-shaped grooves, the inner wall of the inner ring is rotatably connected with the arch-shaped cylinder, the outer surface of the arch-shaped cylinder is fixedly connected with a plurality of short rods, the end of the short rods away from the arch-shaped cylinder is slidably connected inside the arc-shaped groove, the top of the arch-shaped cylinder is sawtooth-shaped, the bottom outer wall of the arch-shaped cylinder is provided with an annular groove, the top inner wall of the annular groove is fixedly connected with a plurality of auxiliary teeth, and the bottom outer wall of the inner ring is fixedly connected with a plurality of reset springs two.

[0010] Further, the outer surface of the inner shaft is provided with a pushing mechanism, the pushing mechanism comprises a plurality of C-shaped frames fixedly connected to the outer surface of the inner shaft, a rotating plate rotatably connected inside the C-shaped frames, and a middle rod rotatably connected to the side of the rotating plate close to the inner shaft.

[0011] Further, the outer surface of the rotating plate is provided with an auxiliary mechanism, the auxiliary mechanism comprises an arc-shaped plate rotatably connected to the end of the rotating plate away from the C-shaped frame, an auxiliary groove formed in the side wall of the arc-shaped plate, a sliding sleeve rotatably connected to the side of the arc-shaped plate away from the rotating plate, a right-angle spring plate fixedly connected to the outer surface of the sliding sleeve, and an inner ring fixedly connected to the end of the right-angle spring plate away from the sliding sleeve.

[0012] The outer surface of the middle rod is slidably connected inside the auxiliary groove.

[0013] Further, the outer surface of the sliding sleeve is provided with a cladding mechanism, the cladding mechanism comprises a sliding frame two slidably connected inside the sliding groove, an arc-shaped elastic plate one rotatably connected inside the side of the sliding frame two away from the inner shaft, an arc-shaped elastic plate two fixedly connected to the end of the arc-shaped elastic plate one close to the inner shaft, and a limiting shaft fixedly connected to the side of the arc-shaped elastic plate two away from the arc-shaped elastic plate one.

[0014] Further, the end of the limiting shaft away from the arc-shaped elastic plate two penetrates through the outer wall of the sliding frame two and extends to the outside, the top inner wall of the sliding frame two is fixedly connected with an inclined block, the top outer wall of the arc-shaped elastic plate two is in contact with the inclined block, the top inner wall of the arc-shaped elastic plate two is fixedly connected with a flexible layer, the top of the arc-shaped elastic plate one is fixedly connected with a flexible layer two, the bottom of the sliding frame two is fixedly connected with a hollow plate, and the top inner wall of the hollow plate is fixedly connected with a plug rod.

[0015] Further, the hollow plate is internally provided with a moving mechanism, the moving mechanism comprises a threaded rod slidingly connected to the outer surface of the inserting rod, one end of the threaded rod away from the hollow plate penetrates through the outer wall of the sliding frame and extends to the outside, the extending end of the threaded rod is fixedly connected with an obtuse angle plate, one side of the obtuse angle plate close to the threaded rod is fixedly connected with an inclined ring, the top of the obtuse angle plate is provided with a limiting plate, one side of the limiting plate close to the sliding frame is fixedly connected with the outer wall of the sliding frame, a long slot is formed in the top of the limiting plate, a sliding plate is slidingly connected in the long slot, one side of the sliding plate close to the obtuse angle plate is inclinedly arranged, a tension spring is fixedly connected to one side of the sliding plate close to the inner shaft, one end of the tension spring away from the sliding plate is fixedly connected with the inner wall of the long slot, the top of the sliding plate is rotatably connected with an auxiliary plate, one end of the auxiliary plate away from the sliding plate is rotatably connected with a semicircular plate, the bottom of the semicircular plate is rotatably connected to the top outer wall of the sliding frame.

[0016] Further, the outer surface of the sliding frame is provided with a shaking mechanism, the shaking mechanism comprises a spherical rod rotatably connected to one side of the obtuse angle plate away from the threaded rod, one end of the spherical rod away from the obtuse angle plate is provided with a long rod, the outer surface of the long rod is slidingly connected with a square frame, one end of the square frame close to the spherical rod is fixedly connected with the spherical rod, the top of the long rod is fixedly connected with the bottom outer wall of the limiting plate, the top of the square frame is fixedly connected with a second tension spring, the top of the second tension spring is rotatably connected with the top inner wall of the limiting plate.

[0017] The present application has the following beneficial effects:

[0018] 1. The structure piece is placed on the workbench, and the structure piece extrudes the sliding frame downward, the sliding frame is extruded downward, and the short rod on the arch-shaped groove is extruded downward, when the multiple short rods are extruded downward, the arch-shaped groove is driven to move downward, at this time, the right angle spring plate moves downward with the arch-shaped groove under the internal elastic force, when the arch-shaped groove moves downward, the sawtooth ring drives the multiple right angle rods to slide downward in the Z-shaped groove on the inner wall of the circular hole, then when the sliding frame continues to move downward under the extrusion of the structure piece, the short rod on the arch-shaped groove is guided along the arc line of the arc-shaped groove to drive the arch-shaped groove to rotate, when the arch-shaped groove rotates, the multiple auxiliary teeth in the ring-shaped groove at the bottom of the arch-shaped groove drive the sawtooth ring to rotate, at this time, the sawtooth ring is rotated to the corner of the Z-shaped groove, preventing the arch-shaped groove from being reset, then when the arch-shaped groove moves downward, the multiple C-shaped frames are driven to move downward synchronously by the inner shaft, the C-shaped frame moves downward to make the arc-shaped plate on the side wall of the welding structure gap, at the same time, when the arch-shaped groove rotates, the rotation of the arch-shaped groove extrudes the right angle spring plate through the sawtooth structure at the top, the right angle spring plate is extruded by the sawtooth structure and drives the sliding sleeve to move upward, when the sliding sleeve moves upward, the arc-shaped plate drives the rotating plate to rotate, when the rotating plate rotates, the arc-shaped plate is expanded outward, then the expanded arc-shaped plate is inserted into the gap on the structure piece, and a certain downward pressure is generated on the structure piece in the gap of the structure piece, at the same time, when the rotating plate rotates, the rotating plate rotates and pulls the sliding frame two to slide outward synchronously, when the sliding frame two moves outward, an outward pushing force is generated on the structure piece, in combination with the downward pressure generated by the arc-shaped plate on the structure piece, the stability of the structure piece on the workbench is enhanced when the workbench rotates, and the sliding or displacement phenomenon caused by the inertial force generated during welding or rotation is reduced, so that the stability of the structure piece during welding is improved, and the welding efficiency is improved.

[0019] 2. When the intermediate rod drives the sliding frame two to slide, part of the structure piece enters the inside of the sliding frame two, then when the sliding frame two continues to move, the movement of the sliding frame two extrudes the structure piece, and the structure piece is extruded to move towards the inner shaft after being extruded, when the arc-shaped elastic plate two moves backward, one end of the arc-shaped elastic plate one is pulled to move backward, when the arc-shaped elastic plate one is pulled by the arc-shaped elastic plate two, the flexible layer extrudes the bottom of the structure piece entering the inside of the sliding frame two, at the same time, when the arc-shaped elastic plate two slides, the flexible layer two is extruded by the inclined block on the top inner wall of the sliding frame two, and then the flexible layer two extrudes and extrudes the structure piece, the extrusion of the flexible layer and the flexible layer two can further enhance the stability of the structure piece during rotation welding, and also can reduce the situation that the structure piece falls off when rotating to the bottom end, and improve the welding efficiency.

[0020] 3、The application, when the sliding frame two is pulled by the middle rod to slide, the sliding of the sliding frame two will drive the hollow plate to slide synchronously, when the hollow plate slides, the threaded rod will rotate inside the hollow plate under the sliding of the inserted rod, when the threaded rod rotates, it will drive the obtuse angle plate to rotate synchronously, when the obtuse angle plate rotates, it will drive the square frame to rotate through the spherical rod and slide downward on the surface of the long rod at the same time, when the square frame slides downward, the rollers at the bottom of the square frame will pass through the workbench and contact the top outer wall of the fixed frame, when the rollers on the square frame contact the top outer wall of the fixed frame, it can provide a certain supporting force for the sliding frame, reduce the shaking when the structural part rotates and is in an inclined state, reduce the defects such as corrugation and porosity of the weld seam caused by the shaking of the structural part during welding, and at the same time, when the rollers contact the top of the fixed frame, it can provide a certain sliding force during the rotation of the workbench, which can enhance the rotation stability of the workbench and improve the welding quality.

[0021] 4、The application, when the threaded rod drives the obtuse angle plate to rotate, the rotation of the obtuse angle plate will extrude the inclined surface on the sliding plate through the inclined ring on the side wall, after the sliding plate is extruded, it will slide inside the long groove, when the sliding plate slides, it will push the semicircular plate through the auxiliary plate, when the semicircular plate is pushed by the auxiliary plate, it will rotate on the surface of the sliding frame, when the semicircular plate rotates, it will generate an inward pushing force on the structural part, at the same time, the rotation of the semicircular plate can also block the opening of the sliding frame two, reduce the inclination sliding of the structural part in the sliding frame two under its own gravity when the structural part rotates, at the same time, when the semicircular plate rotates to push the structural part and relatively block the opening of the sliding frame two, it can reduce the disengagement of the structural part when it rotates to a relatively inclined angle, reduce the deformation of the structural part or the deviation of the welding caused by the disengagement of the structural part during welding, and improve the stability of the structural part during welding.

[0022] Of course, it is not necessary for any product implementing the present application to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0025] Figure 2It is the whole local section structure schematic view of the present application;

[0026] Figure 3 It is the main body schematic view of the present application;

[0027] Figure 4 It is the clamping mechanism bottom view schematic view of the present application;

[0028] Figure 5 It is the clamping mechanism local section schematic view of the present application;

[0029] Figure 6 It is the rotating mechanism schematic view of the present application;

[0030] Figure 7 It is the covering mechanism schematic view of the present application;

[0031] Figure 8 It is the present application Figure 7 A place amplification in the middle;

[0032] Figure 9 It is the thread rod structure schematic view of the present application.

[0033] In the drawing, the component list represented by each mark is as follows:

[0034] In the drawing: 1, main body; 101, electric frame; 102, rotating frame; 103, motor; 104, fixed frame; 2, clamping mechanism; 201, workbench; 202, inner ring; 203, sliding frame; 204, arc-shaped groove; 205, arch-shaped cylinder; 3, rotating mechanism; 301, inner shaft; 302, sawtooth ring; 303, right-angle rod; 4, pushing mechanism; 401, C-shaped frame; 402, rotating plate; 403, intermediate rod; 5, auxiliary mechanism; 501, arc-shaped plate; 502, sliding sleeve; 503, right-angle spring plate; 6, covering mechanism; 601, sliding frame two; 602, arc-shaped elastic plate one; 603, arc-shaped elastic plate two; 604, hollow plate; 7, moving mechanism; 701, thread rod; 702, obtuse-angle plate; 703, limiting plate; 704, sliding plate; 705, semicircular plate; 8, shaking mechanism; 801, square frame; 802, long rod; 803, spherical rod. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0036] Please refer to Figure 1 - Figure 9As shown, the present application is a special positioner for welding structure of crawler crane, comprising a main body 1, the top of the main body 1 is fixedly connected with two electric racks 101, the two electric racks 101 are rotatably connected with a rotating rack 102, the bottom of the rotating rack 102 is fixedly connected with a motor 103, the output end of the motor 103 penetrates through the top outer wall of the rotating rack 102 and extends to the outside, the extending end of the output end of the motor 103 is fixedly connected with a gear, the top of the rotating rack 102 is provided with a circular hole, a plurality of Z-shaped grooves are formed in the inner wall of the circular hole, the top of the rotating rack 102 is fixedly connected with a fixed frame 104, further comprising;

[0037] A clamping mechanism 2, the clamping mechanism 2 comprises a workbench 201 rotatably connected to the top of the fixed frame 104, the top of the workbench 201 is provided with a circular groove, the inner part of the circular groove is fixedly connected with an inner ring 202, the bottom of the workbench 201 is fixedly connected with a gear ring, the gear ring is meshingly connected with the gear, the top of the inner ring 202 is fixedly connected with a plurality of return springs, one end of the plurality of return springs away from the inner ring 202 is fixedly connected with a sliding frame 203, the sliding frame 203 is slidingly connected to the inner wall of the circular groove;

[0038] A rotating mechanism 3, the rotating mechanism 3 comprises a sawtooth ring 302 rotatably connected to the inside of the annular groove, the bottom of the sawtooth ring 302 is fixedly connected with a plurality of auxiliary springs, one end of the plurality of auxiliary springs away from the sawtooth ring 302 is fixedly connected with the inner wall of the annular groove, one side of the sawtooth ring 302 close to the auxiliary springs is fixedly connected with a plurality of right angle rods 303, one end of the right angle rods 303 away from the sawtooth ring 302 is slidingly connected to the inside of the Z-shaped groove, the inner wall of the sawtooth ring 302 is provided with an inner shaft 301, the inner shaft 301 is fixedly connected to the inside of the arch-shaped cylinder 205, when the structure is placed on the workbench 201, the structure will extrude the sliding frame 203 downward, when the sliding frame 203 is extruded downward, the arc-shaped groove 204 will extrude the short rods on the arch-shaped cylinder 205 downward, when the plurality of short rods are extruded downward, the arch-shaped cylinder 205 will be driven to move downward synchronously, at this time, the right angle spring plate 503 will move downward synchronously with the arch-shaped cylinder 205 under the internal elastic force.

[0039] The top of the sliding frame 203 is provided with a plurality of sliding grooves, the outer surface of the sliding frame 203 is provided with a plurality of arc grooves 204, the inner wall of the inner ring 202 is rotationally connected with an arch-shaped cylinder 205, the outer surface of the arch-shaped cylinder 205 is fixedly connected with a plurality of short rods, the ends of the short rods away from the arch-shaped cylinder 205 are slidingly connected in the interiors of the arc grooves 204, the top of the arch-shaped cylinder 205 is sawtooth-shaped, the bottom outer wall of the arch-shaped cylinder 205 is provided with an annular groove, the top inner wall of the annular groove is fixedly connected with a plurality of auxiliary teeth, the bottom outer wall of the inner ring 202 is fixedly connected with a plurality of reset springs two, the ends of the plurality of reset springs two away from the inner ring 202 are fixedly connected with the side wall of the arch-shaped cylinder 205, when the arch-shaped cylinder 205 moves downward, the plurality of right-angle rods 303 will slide downward in the Z-shaped grooves on the inner wall of the circular hole under the driving of the sawtooth ring 302, then when the sliding frame 203 continues to move downward under the pressing of the structural member, the short rods on the arch-shaped cylinder 205 will drive the arch-shaped cylinder 205 to rotate along the arc line of the arc grooves 204 under the guidance of the arc grooves 204.

[0040] The outer surface of the inner shaft 301 is provided with a pushing mechanism 4, the pushing mechanism 4 comprises a plurality of C-shaped frames 401 fixedly connected with the outer surface of the inner shaft 301, the interiors of the plurality of C-shaped frames 401 are rotationally connected with a rotating plate 402, one side of the rotating plate 402 close to the inner shaft 301 is rotationally connected with an intermediate rod 403, when the C-shaped frame 401 moves downward, the arc-shaped plate 501 will be on the side wall of the welding structure gap, and when the arch-shaped cylinder 205 rotates, the rotation of the arch-shaped cylinder 205 will extrude the right-angle spring plate 503 through the sawtooth structure at the top.

[0041] The outer surface of the rotating plate 402 is provided with an auxiliary mechanism 5, the auxiliary mechanism 5 comprises an arc-shaped plate 501 rotationally connected with the end of the rotating plate 402 away from the C-shaped frame 401, the side wall of the arc-shaped plate 501 is provided with an auxiliary groove, a plurality of arc-shaped plates 501 are rotationally connected with a sliding sleeve 502 on the side of the arc-shaped plate 501 away from the rotating plate 402, the outer surface of the sliding sleeve 502 is fixedly connected with a right-angle spring plate 503, the end of the right-angle spring plate 503 away from the sliding sleeve 502 is fixedly connected with the top of the inner ring 202.

[0042] The outer surface of the intermediate rod 403 is slidingly connected in the interior of the auxiliary groove, the right-angle spring plate 503 will drive the sliding sleeve 502 to move upward after being extruded by the sawtooth structure, the sliding sleeve 502 will push the rotating plate 402 to rotate when the sliding sleeve 502 moves upward, the rotating plate 402 will drive the arc-shaped plate 501 to form an outwardly expanding state when the rotating plate 402 rotates.

[0043] The outer surface of the sliding sleeve 502 is provided with a cladding mechanism 6, which comprises a sliding frame two 601 slidingly connected inside the sliding groove, an arc-shaped elastic plate one 602 rotatably connected inside the inner side of the sliding frame two 601 away from the inner shaft 301, an arc-shaped elastic plate two 603 fixedly connected to one end of the arc-shaped elastic plate one 602 close to the inner shaft 301, and a limiting shaft fixedly connected to the side of the arc-shaped elastic plate two 603 away from the arc-shaped elastic plate one 602. When the middle rod 403 drives the sliding frame two 601 to slide, part of the structure on the structure will enter the inside of the sliding frame two 601, and then when the sliding frame two 601 continues to move, the movement of the sliding frame two 601 will extrude the structure, and after the structure is extruded, it will extrude the arc-shaped elastic plate two 603 to move in the direction of the inner shaft 301, and when the arc-shaped elastic plate two 603 moves backward, one end of the arc-shaped elastic plate one 602 will be pulled to move backward.

[0044] The end of the limiting shaft away from the arc-shaped elastic plate two 603 penetrates through the outer wall of the sliding frame two 601 and extends to the outside, the top inner wall of the sliding frame two 601 is fixedly connected with an inclined block, the top outer wall of the arc-shaped elastic plate two 603 is in contact with the inclined block, the top inner wall of the arc-shaped elastic plate two 603 is fixedly connected with a flexible layer, the top of the arc-shaped elastic plate one 602 is fixedly connected with a flexible layer two, the bottom of the sliding frame two 601 is fixedly connected with a hollow plate 604, the top inner wall of the hollow plate 604 is fixedly connected with a plug rod, when the arc-shaped elastic plate one 602 is pulled by the arc-shaped elastic plate two 603, it will drive the flexible layer to extrude the bottom of the structure entering the inside of the sliding frame two 601, and at the same time, when the arc-shaped elastic plate two 603 slides, it will be extruded by the inclined block on the top inner wall of the sliding frame two 601, thereby driving the flexible layer two to cladding and extrude the structure.

[0045] The inside of the hollow plate 604 is provided with a moving mechanism 7, which comprises a threaded rod 701 slidingly connected to the outer surface of the insertion rod, one end of the threaded rod 701 penetrating through the outer wall of the sliding frame 203 and extending to the outside away from the hollow plate 604, the extending end of the threaded rod 701 being fixedly connected with an obtuse angle plate 702, the side close to the threaded rod 701 of the obtuse angle plate 702 being fixedly connected with an inclined ring, the top of the obtuse angle plate 702 being provided with a limiting plate 703, the side close to the sliding frame 203 of the limiting plate 703 being fixedly connected with the outer wall of the sliding frame 203, a long slot being formed in the top of the limiting plate 703, a sliding plate 704 being slidingly connected in the long slot, the side close to the obtuse angle plate 702 of the sliding plate 704 being inclined, a tension spring being fixedly connected to the side close to the inner shaft 301 of the sliding plate 704, one end of the tension spring away from the sliding plate 704 being fixedly connected with the inner wall of the long slot, an auxiliary plate being rotatably connected to the top of the sliding plate 704, a semicircular plate 705 being rotatably connected to the end of the auxiliary plate away from the sliding plate 704, the bottom of the semicircular plate 705 being rotatably connected to the top outer wall of the sliding frame 203, when the threaded rod 701 drives the obtuse angle plate 702 to rotate, the rotation of the obtuse angle plate 702 will extrude the inclined surface on the sliding plate 704 through the inclined ring on the side wall, and the sliding plate 704 will slide in the long slot after being extruded, and when the sliding plate 704 slides, the semicircular plate 705 will be pushed by the auxiliary plate, and when the semicircular plate 705 is pushed by the auxiliary plate, it will rotate on the surface of the sliding frame 203.

[0046] The outer surface of the sliding frame 203 is provided with a shaking mechanism 8, which comprises a spherical rod 803 rotatably connected to the side of the obtuse angle plate 702 away from the threaded rod 701, a long rod 802 being arranged at one end of the spherical rod 803 away from the obtuse angle plate 702, a square frame 801 slidingly connected to the outer surface of the long rod 802, the end close to the spherical rod 803 of the square frame 801 being fixedly connected with the spherical rod 803, the top of the long rod 802 being fixedly connected with the bottom outer wall of the limiting plate 703, a tension spring two being fixedly connected to the top of the square frame 801, the top of the tension spring two being rotatably connected with the top inner wall of the limiting plate 703, when the square frame 801 slides downward, the rollers at the bottom of the square frame 801 and the square frame 801 will pass through the workbench 201 and contact with the top outer wall of the fixed frame 104, when the rollers on the square frame 801 contact with the top outer wall of the fixed frame 104, the sliding frame 203 can be supported to a certain extent.

[0047] In use, first, the structure to be welded is placed on the top of the workbench 201, then the external clamp is connected to the workbench 201 by bolts and the structure is fixed by adjusting the external clamp, then the electric frame 101 and the motor 103 are started as required during welding, the electric frame 101 drives the structure to rotate circumferentially through the rotating frame 102 during work, then the workbench 201 is driven to rotate through the meshing of the gear and the gear ring during the work of the motor 103, the workbench 201 drives the structure to rotate horizontally during rotation, so that the purpose of changing can be achieved during welding.

[0048] When the structure is placed on the workbench 201, the structure will extrude the sliding frame 203 downward, and when the sliding frame 203 is extruded downward, it will extrude the short rods on the arch-shaped cylinder 205 downward through the arc-shaped slot 204, and when the multiple short rods are extruded downward, they will drive the arch-shaped cylinder 205 to move downward synchronously, at which time the right-angle spring plate 503 will move downward synchronously with the arch-shaped cylinder 205 under the internal elastic force when the arch-shaped cylinder 205 moves downward, and when the arch-shaped cylinder 205 moves downward, it will drive multiple right-angle rods 303 to slide downward in the Z-shaped slot on the inner wall of the circular hole through the sawtooth ring 302, and then when the sliding frame 203 continues to move downward under the pressure of the structure, the short rods on the arch-shaped cylinder 205 will guide the arch-shaped cylinder 205 to rotate along the arc line of the arc-shaped slot 204 under the guidance of the arc-shaped slot 204, and when the arch-shaped cylinder 205 rotates, it will drive the sawtooth ring 302 to rotate through the multiple auxiliary teeth in the ring-shaped slot at the bottom of the arch-shaped cylinder 205, at which time the sawtooth ring 302 will be rotated to the corner of the Z-shaped slot to prevent the arch-shaped cylinder 205 from resetting, and then when the arch-shaped cylinder 205 moves downward, it will drive multiple C-shaped frames 401 to move downward synchronously through the inner shaft 301, and the C-shaped frame 401 will make the arc-shaped plate 501 on the side wall of the welding structure gap when it moves downward, and at the same time, when the arch-shaped cylinder 205 rotates, the rotation of the arch-shaped cylinder 205 will extrude the right-angle spring plate 503 through the sawtooth structure at the top, and after the right-angle spring plate 503 is extruded by the sawtooth structure, it will drive the sliding sleeve 502 to move upward, and when the sliding sleeve 502 moves upward, it will drive the rotating plate 402 to rotate through the arc-shaped plate 501, and when the rotating plate 402 rotates, it will make the arc-shaped plate 501 form an outwardly expanding state, and then the expanding arc-shaped plate 501 will be inserted into the gap on the structure, and will generate a certain downward pressure on the structure inside the structure gap, and at the same time, when the rotating plate 402 rotates, the rotation of the rotating plate 402 will pull the sliding frame two 601 to slide outward synchronously through the intermediate rod 403, and when the sliding frame two 601 moves outward, it will generate an outward pushing action on the structure, and in combination with the downward pressure on the structure generated by the arc-shaped plate 501, the structure can enhance the stability of the structure on the workbench 201 when the workbench 201 rotates, and reduce the sliding or displacement phenomenon caused by vibration or inertia force during welding, so as to improve the stability of the structure during welding and improve the welding efficiency.

[0049] When the middle rod 403 drives the sliding frame two 601 to slide, part of the position on the structural member will enter the inside of the sliding frame two 601, and then when the sliding frame two 601 continues to move, the movement of the sliding frame two 601 will extrude the structural member, and after the structural member is extruded, it will extrude the arc-shaped elastic plate two 603 to move in the direction of the inner shaft 301, when the arc-shaped elastic plate two 603 moves backward, it will pull one end of the arc-shaped elastic plate one 602 to move backward, when the arc-shaped elastic plate one 602 is pulled by the arc-shaped elastic plate two 603, it will drive the flexible layer to extrude the bottom of the structural member that enters the inside of the sliding frame two 601, and at the same time, when the arc-shaped elastic plate two 603 slides, it will be extruded by the inclined block on the top inner wall of the sliding frame two 601, thereby driving the flexible layer two to cover and extrude the structural member, and through the covering and extrusion of the flexible layer and the flexible layer two, the stability of the structural member during the rotation welding can be further enhanced, and the situation that the structural member falls off when it rotates to the bottom end can be reduced, and the welding efficiency can be improved.

[0050] When the sliding frame two 601 is pulled by the middle rod 403 to slide, the sliding of the sliding frame two 601 will drive the hollow plate 604 to slide synchronously, when the hollow plate 604 slides, the threaded rod 701 will rotate inside the hollow plate 604 under the sliding of the inserted rod, when the threaded rod 701 rotates, it will drive the obtuse angle plate 702 to rotate synchronously, when the obtuse angle plate 702 rotates, it will drive the square frame 801 to rotate through the spherical rod 803, and at the same time, it will slide downward on the surface of the long rod 802, when the square frame 801 slides downward, the rollers at the bottom of the square frame 801 will pass through the workbench 201 and contact the top outer wall of the fixed frame 104, when the rollers on the square frame 801 contact the top outer wall of the fixed frame 104, it can provide a certain supporting force to the sliding frame 203, reduce the shaking of the structural member when it rotates and is in an inclined state, reduce the situation that the welding seam has defects such as ripples and pores due to the shaking of the structural member during welding, and at the same time, when the rollers contact the top of the fixed frame 104, it can provide a certain sliding force during the rotation of the workbench 201, which can enhance the rotation stability of the workbench 201 and improve the welding quality.

[0051] When the threaded rod 701 drives the obtuse angle plate 702 to rotate, the rotation of the obtuse angle plate 702 can extrude the inclined surface on the sliding plate 704 through the inclined ring on the side wall, and the sliding plate 704 can slide in the long groove after being extruded, and when the sliding plate 704 slides, the half-round plate 705 can be pushed by the auxiliary plate, and when the half-round plate 705 is pushed by the auxiliary plate, the half-round plate 705 can rotate on the surface of the sliding frame 203, and when the half-round plate 705 rotates, an inward pushing force can be generated on the structure, and at the same time, the rotation of the half-round plate 705 can block the opening of the sliding frame two 601, so that the structure can not slide in the sliding frame two 601 under the gravity of the structure when the structure rotates, and at the same time, when the half-round plate 705 rotates and pushes the structure and relatively blocks the opening of the sliding frame two 601, the structure can not be separated from the sliding frame two 601 when the structure rotates to a relatively inclined angle, so that the structure can not be deformed or deviated when being welded, and the stability of the structure when being welded can be improved.

[0052] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and use the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A special positioning device for welding structural components of a crawler crane, comprising a main body (1), wherein two electric frames (101) are fixedly connected to the top of the main body (1), a rotating frame (102) is rotatably connected between the two electric frames (101), a motor (103) is fixedly connected to the bottom of the rotating frame (102), the output end of the motor (103) extends through the top outer wall of the rotating frame (102) and extends to the outside, a gear is fixedly connected to the extended end of the output end of the motor (103), a circular hole is opened on the top of the rotating frame (102), a plurality of Z-shaped grooves are opened on the inner wall of the circular hole, and a fixed frame (104) is fixedly connected to the top of the rotating frame (102), characterized in that, Also includes; The clamping mechanism (2) includes a worktable (201) rotatably connected to the top of the fixed frame (104). A circular groove is provided on the top of the worktable (201). An inner ring (202) is fixedly connected inside the circular groove. A toothed ring is fixedly connected to the bottom of the worktable (201). The toothed ring meshes with a gear. A plurality of return springs are fixedly connected to the top of the inner ring (202). A sliding frame (203) is fixedly connected to one end of the plurality of return springs away from the inner ring (202). The sliding frame (203) is slidably connected to the inner wall of the circular groove. The outer surface of the sliding frame (203) is provided with several arc-shaped grooves (204). The inner wall of the inner ring (202) is rotatably connected to a bow-shaped tube (205). Several short rods are fixedly connected to the outer surface of the bow-shaped tube (205). The end of the short rod away from the bow-shaped tube (205) is slidably connected to the inside of the arc-shaped groove (204). The top of the bow-shaped tube (205) is serrated. The bottom outer wall of the bow-shaped tube (205) is provided with an annular groove. Several auxiliary teeth are fixedly connected to the top inner wall of the annular groove. Rotating mechanism (3), the rotating mechanism (3) includes a serrated ring (302) rotatably connected inside the annular groove, a plurality of auxiliary springs are fixedly connected to the bottom of the serrated ring (302), one end of the plurality of auxiliary springs away from the serrated ring (302) is fixedly connected to the inner wall of the annular groove, a plurality of right-angle rods (303) are fixedly connected to the side of the serrated ring (302) near the auxiliary springs, one end of the right-angle rods (303) away from the serrated ring (302) is slidably connected to the inside of the Z-shaped groove, and an inner shaft (301) is provided on the inner wall of the serrated ring (302), the inner shaft (301) is fixedly connected to the inside of the bow-shaped tube (205); The outer surface of the inner shaft (301) is provided with a pushing mechanism (4), which includes a plurality of C-shaped frames (401) fixedly connected to the outer surface of the inner shaft (301), and a rotating plate (402) is rotatably connected inside the plurality of C-shaped frames (401). An auxiliary mechanism (5) is provided on the outer surface of the rotating plate (402). The auxiliary mechanism (5) includes an arc plate (501) rotatably connected to one end of the rotating plate (402) away from the C-shaped frame (401). A sliding sleeve (502) is rotatably connected to one side of the arc plate (501) away from the rotating plate (402). A right-angle spring plate (503) is fixedly connected to the outer surface of the sliding sleeve (502). One end of the right-angle spring plate (503) away from the sliding sleeve (502) is fixedly connected to the top of the inner ring (202).

2. The special displacement device for welding structural components of a crawler crane according to claim 1, characterized in that: A number of return springs are fixedly connected to the bottom outer wall of the inner ring (202), and one end of the return springs away from the inner ring (202) is fixedly connected to the side wall of the bow-shaped tube (205).

3. The special displacement device for welding structural components of a crawler crane according to claim 2, characterized in that: The rotating plate (402) is rotatably connected to the middle rod (403) on the side near the inner shaft (301). The side wall of the arc plate (501) is provided with an auxiliary groove, and the outer surface of the middle rod (403) is slidably connected to the inside of the auxiliary groove.

4. The special displacement device for welding structural components of a crawler crane according to claim 3, characterized in that: The top of the sliding frame (203) is provided with several sliding grooves. The outer surface of the sliding sleeve (502) is provided with a covering mechanism (6). The covering mechanism (6) includes a second sliding frame (601) slidably connected inside the sliding groove. The side of the second sliding frame (601) away from the inner shaft (301) is rotatably connected to an arc-shaped elastic plate (602). The end of the first arc-shaped elastic plate (602) near the inner shaft (301) is fixedly connected to an arc-shaped elastic plate (603). The side of the second arc-shaped elastic plate (603) away from the first arc-shaped elastic plate (602) is fixedly connected to a limiting shaft. The intermediate rod (403) drives the second sliding frame (601) to slide.

5. A special displacement device for welding structural components of a crawler crane according to claim 4, characterized in that: The end of the limiting shaft away from the second arc-shaped elastic plate (603) passes through the outer wall of the second sliding frame (601) and extends to the outside. The top inner wall of the second sliding frame (601) is fixedly connected with an inclined block. The top outer wall of the second arc-shaped elastic plate (603) is in contact with the inclined block. The top inner wall of the second arc-shaped elastic plate (603) is fixedly connected with a flexible layer. The top of the first arc-shaped elastic plate (602) is fixedly connected with a second flexible layer. The bottom of the second sliding frame (601) is fixedly connected with a hollow plate (604). The top inner wall of the hollow plate (604) is fixedly connected with an insert rod.

6. A special displacement device for welding structural components of a crawler crane according to claim 5, characterized in that: The hollow plate (604) is provided with a moving mechanism (7). The moving mechanism (7) includes a threaded rod (701) slidably connected to the outer surface of the insert rod. The end of the threaded rod (701) away from the hollow plate (604) passes through the outer wall of the sliding frame (203) and extends to the outside. An obtuse angle plate (702) is fixedly connected to the extended end of the threaded rod (701). An inclined ring is fixedly connected to the side of the obtuse angle plate (702) near the threaded rod (701). A limit plate (703) is provided at the top of the obtuse angle plate (702). The side of the limit plate (703) near the sliding frame (203) is fixed to the outer wall of the sliding frame (203). The limiting plate (703) has a long groove at its top, and a sliding plate (704) is slidably connected inside the long groove. The side of the sliding plate (704) near the obtuse angle plate (702) is inclined. A tension spring is fixedly connected to the side of the sliding plate (704) near the inner shaft (301). The end of the tension spring away from the sliding plate (704) is fixedly connected to the inner wall of the long groove. An auxiliary plate is rotatably connected to the top of the sliding plate (704). A semicircular plate (705) is rotatably connected to the end of the auxiliary plate away from the sliding plate (704). The bottom of the semicircular plate (705) is rotatably connected to the top outer wall of the sliding frame (203).

7. A special displacement device for welding structural components of a crawler crane according to claim 6, characterized in that: The outer surface of the sliding frame (203) is provided with a shaking mechanism (8). The shaking mechanism (8) includes a spherical rod (803) rotatably connected to the obtuse angle plate (702) on the side away from the threaded rod (701). A long rod (802) is provided at the end of the spherical rod (803) away from the obtuse angle plate (702). A square frame (801) is slidably connected to the outer surface of the long rod (802). The end of the square frame (801) near the spherical rod (803) is fixedly connected to the spherical rod (803). The top of the long rod (802) is fixedly connected to the bottom outer wall of the limiting plate (703). A second tension spring is fixedly connected to the top of the square frame (801). The top of the second tension spring is rotatably connected to the top inner wall of the limiting plate (703).

Images