Welding jig tool for assembling single standard section of tower crane

Abstract

The utility model discloses a welding jig tool for assembling a single tower crane standard knot, which comprises a turnover jig frame and a turnover driving mechanism which are in transmission fit with each other. A pressing frame and a fishplate positioning frame which are arranged front and back in the overturning shaft of the overturning jig frame are fixed on the overturning jig frame, and a plurality of pressing screw rods are arranged on the pressing frame; the device further comprises a position adjusting mechanism fixed to the overturning jig frame, a deflectable top plate is arranged on the position adjusting mechanism, and the top plate is located below the pressing frame and right faces the pressing screw. According to the utility model, all parts of a single standard knot can be assembled and welded on the overturning jig frame at one time, so that the assembling efficiency and the assembling quality are effectively improved; the angle of the gusset plate is actively adjusted through overturning of the top plate, so that the assembling angle of the gusset plate can be adjusted according to the angle of the main chord angle steel of the single standard knot, the welding requirements of the single standard knots of different specifications are met, and the application range of the gusset plate is effectively widened.

Description

Technical Field

[0001] The utility model relates to the technical field of tower crane production, in particular to a single-branch assembly welding fixture for a standard section of a tower crane. Background Art

[0002] A tower crane is a tower crane, and the main body of its tower structure is a standard section. At present, the industry mostly uses a standard section single-piece assembly tire as an assembly tool for making standard sections. During assembly and welding, the entire tire position needs to be manually turned over, which is cumbersome and labor-intensive, and the fishtail plate on the standard section single branch cannot be assembled; in addition, the existing assembly tool is only suitable for assembling a standard section single branch of the same type, and the angles of the main chord angle steels of the standard section single branch will be different. The existing tool cannot align the node plate with the outer edge of the main chord angle steel, and can only be manually aligned and assembled after the standard section single branch is assembled.

[0003] The Chinese patent document with the announcement number CN216829438U discloses a rotary tooling for welding the standard section of a tower crane, and its technical solution includes a motor, a first bearing seat and a second bearing seat, wherein the first bearing seat is rotatably connected with a first rotating shaft, one end of the first rotating shaft is fixedly connected with a fish plate positioning seat, and the other end is transmission-connected with the output end of the motor; the fish plate positioning seat is provided with an angle steel plate corresponding to the fish plate at the end of the standard section body, and the angle steel plate and the fish plate are provided with corresponding pin holes. The utility model is provided with a fish plate positioning seat and a tail end positioning seat that can connect the two ends of the angle steel chord of the standard section, first fix the four chords of the standard section by a pin shaft, and then weld the other parts of the standard section. During the welding process, the fish plate positioning seat can be driven to rotate by the motor, and the fish plate positioning seat can drive the tail end positioning seat to rotate by the connecting rod, thereby driving the standard section to rotate, which is more convenient for welding, and the entire standard section can be welded at one time, avoiding the deformation caused by separate welding.

[0004] Although the technical solution disclosed in the above patent can realize the welding assembly of standard sections including fishtail plates, it is unable to adjust the assembly angle of the node plate, and therefore can only assemble a single standard section of a single model. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a tower crane standard section single branch assembly welding fixture tool which can provide different welding positions and meet the welding requirements of different types of standard sections.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a single-branch assembly welding fixture for a standard section of a tower crane, including a turning tire frame and a turning drive mechanism, the turning tire frame and the turning drive mechanism are in transmission cooperation; a clamping frame and a fishtail plate positioning frame arranged front and rear in the turning axis direction of the turning tire frame are fixed on the turning tire frame, and a plurality of clamping screws are provided on the clamping frame; it also includes a positioning mechanism fixed on the turning tire frame, and the positioning mechanism is provided with a deflectable top plate, and the top plate is located below the clamping frame and is arranged opposite to the clamping screws.

[0007] As an improvement of the above scheme: the positioning mechanism also includes a fixed seat, an adjusting spring, a top block and an adjusting screw plug; the fixed seat is fixed on the flip tire frame, and is connected to two accommodating cavities corresponding to the two ends of the top plate respectively, and the fixed seat is provided with a through hole connected to the accommodating cavity; the top block is movably arranged in the accommodating cavity, and the adjusting screw plug is threadedly connected to one end of the accommodating cavity away from the top plate, the adjusting spring is arranged in the accommodating cavity and the two ends of the adjusting spring are respectively abutted against the top block and the adjusting screw plug; a limiting hole is provided in the middle of the top plate, and the limiting hole is clearance-matched with the deflection shaft fixed on the fixed seat.

[0008] As an improvement of the above solution: the clamping frame is a clamping bent plate with an arched middle portion, and both ends of the clamping bent plate are detachably connected to the tire flipping frame.

[0009] As an improvement of the above scheme: support seats corresponding to the two ends of the clamping frame are fixed on the flip tire frame, and corresponding connecting holes are provided on the support seat and the clamping frame. The support seat and the clamping frame form a rotatable fit through pins adapted to the connecting holes.

[0010] As an improvement of the above scheme: it also includes a quick-release template assembly detachably arranged on the fishplate positioning frame, the quick-release template assembly includes a carcass fixed on the fishplate positioning frame and a quick-release template detachably connected to the carcass by a plurality of locking screws, and a positioning hole is provided on the quick-release template.

[0011] As an improvement of the above scheme: it also includes a roller fixed on the flip tire frame; the roller is rotatably set on the flip tire frame through roller support seats located on both sides of the roller; the top of the roller support seat is provided with an inclined surface sloping downward from the side close to the roller to the side away from the roller.

[0012] As an improvement of the above solution: the flip driving mechanism includes a driving motor, a motor base and a rotating shaft; the driving motor is fixed on the motor base, and the output end of the driving motor forms a transmission connection with the flip tire frame through the rotating shaft.

[0013] The beneficial effects of the utility model are as follows: the utility model drives the flipping frame to flip through the flipping drive mechanism, which can provide more assembly stations for the welding and assembly work of the standard single section, and can complete the assembly and welding of all parts of the standard single section on the flipping frame at one time, effectively improving the assembly efficiency and assembly quality; the utility model fixes the node plate by setting a clamping screw and an adjusting mechanism in cooperation with each other; the locking screw and the top plate in the adjusting mechanism can respectively abut against two different end faces of the node plate, and the flipping of the top plate is used to actively adjust the angle of the node plate, and at the same time, cooperate with the adjustment of the locking distances of different locking rods, so that the assembly angle of the node plate can be adjusted according to the angle of the main chord angle steel of the standard single section, thereby meeting the welding requirements of standard single sections of different specifications, thereby effectively improving the scope of application of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a side view of the utility model in a flipped state;

[0016] Figure 3 This is a schematic diagram of the coordination between the positioning mechanism and the tire frame in the utility model;

[0017] Figure 4 It is a partial structural diagram of the positioning mechanism in the utility model;

[0018] Figure 5 It is a schematic diagram of the first embodiment of the quick-release template assembly in the utility model;

[0019] Figure 6 It is a schematic diagram of a second embodiment of the quick-release template assembly in the utility model.

[0020] Marked in the figure: 100-flip tire frame, 110-support seat, 120-roller, 130-roller support seat, 200-flip drive mechanism, 210-drive motor, 220-motor base, 230-rotating shaft, 300-pressing frame, 310-pressing screw, 400-fishtail plate positioning frame, 510-top plate, 520-fixed seat, 530-adjusting spring, 540-top block, 550-adjusting screw plug, 560-accommodating chamber, 570-deflection shaft, 610-tire body, 620-locking screw, 630-quick-release template, 700-workpiece, 710-node plate. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention is further described below in conjunction with the accompanying drawings.

[0022] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as "front", "rear", "left", "right", "up", "down", and "inside" are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of description. They do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] like Figure 1 and Figure 2 As shown, the tower crane standard section single-branch assembly welding fixture disclosed in the utility model comprises a turning frame 100 and a turning drive mechanism 200; the turning frame 100 is used to fix the standard section single-branch to be assembled, that is, Figures 1 to 3 flip drive mechanism 200 is used to drive the flip tire frame 100 to flip the entire tire frame 100, thereby driving the workpiece 700 fixed on the flip tire frame 100 to flip, to provide more assembly and welding stations for the assembly work of the workpiece 700.

[0024] Specifically, Figure 1 As shown, the flipping drive mechanism 200 used in the utility model includes a driving motor 210, a motor base 220 and a rotating shaft 230; the driving motor 210 is installed on the motor base 220, a through hole is set on the motor base 220 to install the rotating shaft 230, a coupling is fixed in the through hole to realize the rotation of the rotating shaft 230, one end of the rotating shaft 230 forms a transmission connection with the output end of the driving motor 210 through the coupling, and the other end of the rotating shaft 230 is connected to the flipping tire frame 100 through a coupling disk, and the entire flipping tire frame 100 can be driven to flip to the desired assembly position through the rotating shaft 230 by controlling the driving motor 210 to work.

[0025] Specifically, Figure 1 and Figure 2 As shown, in the present invention, a fish plate positioning frame 400 and a pressing frame 300 for positioning and fixing the workpiece 700 are installed on the turning frame 100; the pressing frame 300 fixes the workpiece 700 to be assembled on the turning frame 100 by pressing the workpiece 700, and the fish plate positioning frame 400 is used to position the fish plate assembled on the workpiece 700, and a positioning space adapted to the fish plate is provided on the fish plate positioning frame 400. In order to adapt to the outer contour shape of the workpiece 700 and provide a better pressing effect for the workpiece 700, the pressing frame 300 in the present invention adopts a pressing bent plate with an arched middle portion to adapt to the corner of the workpiece 700; at the same time, a plurality of pressing screws 310 are installed on the pressing bent plate as the pressing frame 300, and an adjustable locking effect is provided for the workpiece 700 through the pressing screws 310.

[0026] Furthermore, in order to facilitate the installation of the clamping frame 300 and the clamping of the workpiece 700, the present invention sets the connection between the clamping frame 300 and the tire flip frame 100 as a detachable connection that is easy to operate. Figure 2 As shown, through holes are provided at both ends of the clamping frame 300, and two support seats 110 are fixedly provided at positions corresponding to the two ends of the clamping frame 300 on the tire flip frame 100, and through holes are also provided on the support seats 110, and then the two ends of the clamping frame 300 are connected to the corresponding support seats 110 by using latches. When clamping the workpiece 700, it is only necessary to remove one end of the clamping frame 300, and then rotate the clamping frame 300 to rotate it around the latch at the other end to open the clamping frame 300, and then rotate the clamping frame 300 back to its original position and fix its end after the workpiece 700 is installed in place.

[0027] like Figures 2 to 4 As shown, the present invention is provided with a positioning mechanism to cooperate with the pressing screw 310 to fix the node plate 710 and adjust the angle of the node plate 710. When the node plate 710 is assembled and welded, the assembly angle of the node plate 710 can be adjusted according to the angle difference of the main chord angle steel on different workpieces 700, so that the node plate 710 can be aligned with the outer edge of the main chord angle steel of the workpiece 700. The positioning mechanism includes a top plate 510, a fixing seat 520, an adjustment spring 530, a top block 540, an adjustment screw plug 550, an accommodating cavity 560 and a deflection shaft 570. The fixing seat 520 is a basic component of the positioning mechanism. The fixing seat 520 is fixedly arranged on the flip tire frame 100, and two accommodating cavities 560 are respectively arranged at both ends of the fixing seat 520 and communicated with the through hole penetrating the fixing seat 520. The adjusting spring 530 is arranged in the accommodating cavity 560, and the two ends of the accommodating cavity 560 are respectively provided with a top block 540 and an adjusting screw plug 550; the top block 540 forms a clearance fit with the accommodating cavity 560 and the through hole on the fixing seat 520, and the adjusting screw plug 550 forms a threaded connection with the accommodating cavity 560 to seal the end of the accommodating cavity 560, and the screw-in distance of the adjusting screw plug 550 can be adjusted by rotating the adjusting screw plug 550 to adjust the degree of compression of the adjusting spring 530. The deflection shaft 570 is fixed in the middle of the fixing seat 520 and extends a portion thereof to form a clearance fit with the top plate 510, so that the top plate 510 can deflect relative to the fixing seat 520; the top block 540 extends from the through hole and abuts against the top plate 510, and the adjusting spring 530 can drive the top block 540 to expand and contract under its own elastic force to lift the two ends of the top plate 510. By adjusting the screw plug 550 to change the degree of compression of the two adjusting springs 530, the ejection distance of the top block 540 is adjusted, so that the top plate 510 deflects and finally reaches the desired deflection angle. When welding the node plate 710, if Figure 3As shown, the node plate 710 is placed against the top plate 510, and the lengths of the different locking screws 310 can be adjusted to make the pressing angle match the angle of the node plate 710, the node plate 710 is pressed by the locking screws 310, and the deflection angle of the top plate 510 is adjusted so that it can be aligned with the outer edge of the main chord angle steel of the workpiece 700. The utility model can assemble the node plate 710 at any angle by setting the positioning mechanism, so as to meet the assembly requirements of various types of standard node single branches.

[0028] like Figure 5 and Figure 6 As shown, the utility model also provides a quick-release template assembly, which consists of a carcass 610, locking screws 620 and a quick-release template 630. A positioning hole is provided on the quick-release template 630, and the carcass 610 is embedded and fixed on the fishtail plate positioning frame 400. The quick-release template 630 is detachably connected to the carcass 610 through a plurality of locking screws 6200; the quick-release template 630 is a replaceable component, such as Figure 5 and Figure 6 As shown, the positioning holes on different quick-release templates 630 are set at different positions, and different quick-release templates 630 can be replaced according to the difference in workpiece models. After adopting the quick-release template assembly in the utility model, the assembly and welding efficiency of standard sections is effectively improved, and the process cost is also reduced. Different tooling is required for the assembly of workpieces of different models, but now only one set of tooling is needed.

[0029] Since the standard section of the workpiece 700 is heavy and difficult to move, in order to facilitate the movement of the workpiece 700 on the overturning tire frame 100, the present invention is provided with a plurality of steps. Figure 2 As shown, a roller 120 is installed on the tire flip frame 100, and roller support seats 130 are arranged on both sides of the roller 120 to realize the installation of the roller 120. After the workpiece 700 is hoisted onto the tire flip frame 100, the workpiece 700 can be placed on the roller 120, and the rolling cooperation between the workpiece 700 and the roller 120 is used to reduce the difficulty of moving the workpiece 700. Further, in order to avoid damage to the workpiece 700, the utility model optimizes the structure of the roller support seat 130, and an inclined surface is arranged on the top of the roller support seat 130, and the inclined surface is inclined downward from the side close to the roller 120 to the side away from the roller 120, so that the top shape of the roller support seat 130 can be adapted to the inner inclined surface of the workpiece 700.

Claims

1. The single-branch welding fixture for tower crane standard section is characterized by: The invention comprises a tire turning frame (100) and a turning driving mechanism (200), wherein the tire turning frame (100) and the turning driving mechanism (200) are in driving cooperation; a pressing frame (300) and a fishtail plate positioning frame (400) are fixed on the tire turning frame (100) and are arranged front and rear on the turning axis of the tire turning frame (100); a plurality of pressing screws (310) are arranged on the pressing frame (300); and a positioning mechanism is also included which is fixed on the tire turning frame (100); a deflectable top plate (510) is arranged on the positioning mechanism; the top plate (510) is located below the pressing frame (300) and is arranged directly opposite to the pressing screws (310).

2. The tower crane standard section single-branch assembly welding fixture tooling as claimed in claim 1, characterized in that: The positioning mechanism further comprises a fixing seat (520), an adjusting spring (530), a top block (540) and an adjusting screw plug (550); the fixing seat (520) is fixed on the overturning tire frame (100); two accommodating cavities (560) corresponding to the two ends of the top plate (510) are connected to the fixing seat (520); a through hole communicating with the accommodating cavity (560) is provided on the fixing seat (520); the top block (540) is movably arranged in the accommodating cavity (560); the adjusting screw plug (550) is threadedly connected to one end of the accommodating cavity (560) away from the top plate (510); the adjusting spring (530) is arranged in the accommodating cavity (560) and the two ends of the adjusting spring (530) are respectively in contact with the top block (540) and the adjusting screw plug (550); a limiting hole is provided in the middle of the top plate (510); the limiting hole is clearance-matched with a deflection shaft (570) fixed on the fixing seat (520).

3. The tower crane standard section single-branch assembly welding fixture tool as claimed in claim 1, characterized in that: The pressing frame (300) is a pressing curved plate with an arched middle portion, and both ends of the pressing curved plate are detachably connected to the tire turning frame (100).

4. The tower crane standard section single-branch assembly welding fixture tool as claimed in claim 3, characterized in that: The tire flip frame (100) is fixed with support seats (110) respectively corresponding to the two ends of the pressing frame (300); the support seats (110) and the pressing frame (300) are provided with corresponding connecting holes; the support seats (110) and the pressing frame (300) are rotatably matched via latches matched with the connecting holes.

5. The tower crane standard section single-branch assembly welding fixture tooling according to claim 1, characterized in that: The invention also comprises a quick-release template assembly detachably arranged on the fishplate positioning frame (400), wherein the quick-release template assembly comprises a carcass (610) fixed on the fishplate positioning frame (400) and a quick-release template (630) detachably connected to the carcass (610) via a plurality of locking screws (620), and a positioning hole is provided on the quick-release template (630).

6. The tower crane standard section single-branch assembly welding fixture tool as claimed in claim 1, characterized in that: It also includes a roller (120) fixed on the tire turning frame (100); the roller (120) is rotatably arranged on the tire turning frame (100) via roller support seats (130) located on both sides of the roller (120); the top of the roller support seat (130) is provided with an inclined surface that slopes downward from a side close to the roller (120) to a side away from the roller (120).

7. The tower crane standard section single-branch assembly welding fixture tooling as claimed in claim 1, characterized in that: The overturning driving mechanism (200) comprises a driving motor (210), a motor base (220) and a rotating shaft (230); the driving motor (210) is fixed on the motor base (220), and the output end of the driving motor (210) is in transmission connection with the overturning tire frame (100) via the rotating shaft (230).

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