CN103418973A - Welding fixture for climbing frame of tower crane - Google Patents

Abstract

The invention discloses a welding tool for a climbing frame of a tower crane, comprising a platform (10), on which a web bar positioning support seat (11), a beam positioning support seat (12), a climbing frame withdrawal oil cylinder (13), and a slider are installed. Positioning stand (14), oil cylinder beam ear plate positioning and clamping device (15) and slider moving cylinder (16); positioning column (30) on the platform is equipped with a fully automatic hydraulic positioning and clamping device; platform right The side is the standard section (42), the standard section is driven by the moving slider (40), and the moving slider is guided by the linear guide rail (44); a fixed stand (20) is arranged on the left side of the platform, and the end ear is installed on the fixed stand Plate positioning and clamping device (21), this tool can realize spot welding of the climbing frame structure, guide wheel lugs, climbing claw lugs, oil cylinder beam lugs and end lugs connected to the lower support, and the welding positioning is accurate and fast; Realize multiple process contents on one tooling, saving work space.

Description

Welding tooling for climbing frame of tower crane

technical field

The invention relates to a tower crane, in particular to a welding tool for a climbing frame of a tower crane.

Background technique

The climbing frame is one of the important structural parts of the tower crane. Its large structural size makes it difficult to control the deformation and difficult to weld, especially the end lugs and guide wheel lugs on the climbing frame. , Crawler lugs, and oil cylinder beam lugs have particularly high positional accuracy requirements. Once the positional accuracy is not well controlled, it will bring great difficulties to the installation of the tower crane, or even make it impossible to install.

At present, the common welding process of the tower crane climbing frame is as follows: after the climbing frame structure is spot welded, it is assembled with the standard section, and then the lug plate of the guide wheel, the lug plate of the climbing claw and the lug plate of the cylinder beam are welded, and the lug plate is connected with the lower support Assembling, and finally welding the end lugs, the welding position in this process is entirely controlled by the workers based on experience, the labor intensity of the workers is high, the work efficiency is low, and the most important thing is that the accuracy cannot be guaranteed, and the product quality is not easy to guarantee; the process flow There are many programs, occupy a large space, and have high requirements for the height of the workshop.

Contents of the invention

The invention provides a welding tool for a climbing frame of a tower crane, which realizes accurate and fast welding positioning, high automation, improves labor efficiency, and ensures product quality; realizes multiple process contents on one tool, saving work space.

In order to achieve the above object, the technical solution adopted by the present invention is: a welding tool for the climbing frame of a tower crane, including a platform, and a welding platform is installed on both sides of the platform; a positioning column is arranged on the platform, and the positioning column A fully automatic hydraulic positioning and clamping device is installed on the top, and the fully automatic hydraulic positioning and clamping device is composed of a positioning clamp I, a positioning clamping cylinder I, a positioning clamping oil cylinder II and a positioning clamp II. The device Ⅰ is hinged on the upper end of the positioning column, the positioning clamping cylinder Ⅰ is located below the positioning clamp Ⅰ, the bottom end of the positioning clamping cylinder Ⅰ is hinged on the positioning column, and the rod head is hinged to the rear end of the positioning clamp Ⅰ , the positioning and clamping cylinder II is located on the right side of the positioning clamp II, the bottom end of the positioning clamping cylinder II is connected to the positioning column through a flange, and the rod head is hinged with the front end of the positioning clamp II; The right end area is equipped with a moving slider, and the moving slider is installed on the linear guide rail. The standard section is installed in the moving slider. The standard section is equipped with a tooling claw, a small platform, and a tooling guide wheel. The standard section is installed by the mobile Driven by the slider, the mobile slider moves along the linear guide rail under the drive of the slider moving cylinder, the tooling claw is used to position the ear plate of the claw; the tooling guide wheel is used to position the ear plate of the guide wheel through the pin shaft and the lock nut , the guide wheel ear plate is connected with the standard joint through connecting bolts; a fixed stand is provided on the left end area near the platform, and end ear plate positioning and clamping devices are installed on the four corners of the fixed stand; The right side of the stand is equipped with an oil cylinder beam ear plate positioning and clamping device.

The tooling claw can rotate around the standard joint.

Compared with the existing technology, the welding tooling for the climbing frame of the tower crane realizes the fast and accurate positioning and welding of the climbing frame through the positioning and clamping oil cylinder installed on the positioning column to drive the positioning clamp to move according to the set path; The slider moves and the piston rod of the oil cylinder drives the moving slider to move and drives the tooling claw and tooling guide wheel to move, and finally realizes the precise positioning and welding of the standard joint, the claw lug plate and the guide wheel lug plate; by setting the cylinder beam lug plate positioning clamp The clamping device realizes the precise positioning and welding of the lug plate of the cylinder beam; through the positioning and clamping device positioning of the end lug plate, the precise positioning and welding of the end lug plate is realized; therefore, this welding tool realizes accurate and fast positioning and clamping , high degree of automation, improving product quality; completing multiple processes on one tooling, saving transit time, saving work space, improving labor efficiency, strong versatility, and simple operation.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the top view of Fig. 1; Fig. 3 is the A direction view of Fig. 1;

Fig. 4 is the B direction view of Fig. 1;

Fig. 5 is the C direction view of Fig. 1;

FIG. 6 is a partial sectional view along line D-D of FIG. 1 .

In the figure: 10, platform, 11, web rod positioning support seat, 12, crossbeam positioning support seat, 13, climbing frame withdraws from oil cylinder, 14, slide block positioning stand, 15, oil cylinder beam lug plate positioning and clamping device, 16, Slider moving cylinder, 20, fixed stand, 21, end ear plate positioning and clamping device, 30, positioning column, 31, positioning clamp Ⅰ, 32, positioning and clamping cylinder Ⅰ, 33, positioning and clamping cylinder Ⅱ , 34, positioning clamp II, 40, moving slider, 41, tooling claw, 42, standard section, 43, small platform, 44, linear guide rail, 45, tooling guide wheel, 46, pin shaft, 47, lock Female, 48, connecting bolt, 49, guide wheel ear plate, 50, welding platform, 51, climbing claw ear plate.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 6, the welding tooling for the climbing frame of the tower crane includes a platform 10, and welding platforms 50 are installed on both sides of the platform 10; the platform 10 is provided with a positioning column 30, and the positioning column 30 is equipped with a fully automatic hydraulic positioning and clamping device. The fully automatic hydraulic positioning and clamping device is composed of a positioning clamp I31, a positioning clamping oil cylinder I32, a positioning clamping oil cylinder II33 and a positioning clamp II34. The clamp I31 is hinged on the upper end of the positioning column 30, the positioning and clamping cylinder I32 is located below the positioning clamp I31, the bottom end of the positioning clamping cylinder I32 is hinged on the positioning column 30, and the rod head is connected to the positioning clamp I31. The rear end is hinged, the positioning and clamping cylinder II33 is positioned on the right side of the positioning clamp II34, the bottom end of the positioning clamping cylinder II33 is connected to the positioning column 30 through a flange, and the rod head is hinged to the front end of the positioning clamp II34 ;A mobile slider 40 is installed near the right end area of the platform 10, and the mobile slider 40 is installed on the linear guide rail 44, and the standard section 42 is installed in the mobile slider 40, and the standard section 42 is equipped with a tooling climbing claw 41 , small platform 43, tooling guide wheel 45, the standard section 42 is driven by the moving slider 40, the moving slider 40 moves along the linear guide rail 44 under the drive of the slider moving oil cylinder 16, and the tooling climbing claw 41 is used for positioning and climbing Claw ear plate 51; tooling guide wheel 45 is used to locate guide wheel ear plate 49 through pin shaft 46 and lock nut 47, and said guide wheel ear plate 49 is connected with standard joint 42 through connecting bolt 48; near the left end area of platform 10 There is a fixed stand 20 on the top, and the four corners of the fixed stand 20 are equipped with end ear plate positioning and clamping devices 21; the right side of the fixed stand 20 is equipped with an oil cylinder beam ear plate positioning and clamping device 15.

As shown in Figure 2, the tooling claw 41 can rotate around the standard joint 42. When in use, the tooling claw 41 can be rotated to the outside to position the ear plate 51 of the claw; when not in use, it can be rotated to the inside. Avoid interference with the climbing frame when the standard section moves.

The welding process of this welding tool is:

1) The main chord of the positioning climbing frame: the positioning column 30 is equipped with positioning and clamping oil cylinder Ⅰ32, positioning and clamping device Ⅰ31, positioning and clamping oil cylinder Ⅱ33, and positioning and clamping device Ⅱ34. The piston rod of Ⅱ33 moves, drives the positioning and clamping device Ⅱ34 to move, quickly locates and clamps the lower main chord of the climbing frame; the positioning and clamping cylinder Ⅰ32 piston rod moves, drives the positioning and clamping device Ⅰ31 to rotate, and quickly positions and clamps the upper main chord of the climbing frame;

2) After the main chord of the climbing frame is positioned and clamped, use the web bar positioning support seat 11 and the beam positioning support seat 12 to quickly position and support the climbing frame web bar and beam. After the climbing frame main chord, web bar, and beam are positioned and clamped on the tooling , Complete spot welding.

3) The fixed stand 20 is equipped with an end ear plate positioning and clamping device 21, and after the end ear plate is positioned by the end ear plate positioning and clamping device 21, the spot welding is completed;

4) The right side of the fixed stand 20 is equipped with an oil cylinder beam ear plate positioning and clamping device 15, and after the oil cylinder beam ear plate is positioned by the oil cylinder beam ear plate positioning and clamping device 15, the spot welding is completed;

5) The standard section 42 is installed on the mobile slider 40, and the slider is positioned at the front end of the 14-position standard section 42; the mobile slider 40 moves under the combined action of the power provided by the slider moving cylinder 16 and the guidance provided by the linear guide rail 44; use , the slider moving cylinder 16 piston rod drives the moving slider 40 forward, and when the moving slider 40 moves to contact with the slider positioning stand 14, under the control of the stroke control device, the moving slider 40 stops moving and completes Assembly of standard sections;

6) Rotate the tooling claw 41 to the outside, use the pin 46 and the lock nut 47 to connect and fix the tooling claw 41 and the claw ear plate 51, and complete the spot welding after the claw ear plate 51 is positioned;

7) Connect the tooling guide wheel 45 to the guide wheel ear plate 49 through the pin shaft 46, the lock nut 47 and the connecting bolt 48, and after the guide wheel ear plate 49 is positioned, complete spot welding on the standard joint 42;

8) Extend the piston rod of the slider moving cylinder 16, drive the moving slider 40 back, and after the moving slider 40 returns to the position, the stroke control device sends a signal, the moving slider 40 stops moving, and the moving slider 40 resets;

9) Move the piston rods of positioning clamping cylinder I32 and positioning clamping cylinder II33, release positioning clamping device I31 and positioning clamping device II34, and return to reset;

10) After the welding of the climbing frame is completed, the piston rod of the climbing frame withdraws from the oil cylinder 13, and the climbing frame is pushed out of the tooling.

Claims (2)

1. A welding tool for a climbing frame of a tower crane, comprising a platform (10), characterized in that welding platforms (50) are installed on both sides of the platform (10); the platform (10) is provided with positioning columns ( 30), the positioning column (30) is equipped with a fully automatic hydraulic positioning and clamping device, and the fully automatic hydraulic positioning and clamping device is composed of positioning clamp I (31), positioning and clamping cylinder I (32) , Positioning and clamping cylinder II (33) and positioning clamp II (34), the positioning clamp I (31) is hinged on the upper end of the positioning column (30), and the positioning and clamping oil cylinder I (32) is located on the positioning clamping Below the device I (31), the bottom end of the positioning and clamping cylinder I (32) is hinged on the positioning column (30), the rod head is hinged with the rear end of the positioning clamp I (31), and the positioning and clamping cylinder II (33) is located on the right side of the positioning clamp II (34), and the bottom end of the positioning clamping cylinder II (33) is connected to the positioning column (30) through a flange, and the rod head is connected to the positioning clamp II ( 34) is hinged at the front end; a moving slider (40) is installed near the right end area of the platform (10), and the moving slider (40) is installed on the linear guide rail (44), and the standard section (42) is installed on the moving slider ( 40), the standard section (42) is equipped with tooling climbing claws (41), small platform (43), tooling guide wheel (45), and the standard section (42) is driven by the moving slider (40). The above moving slider (40) moves along the linear guide rail (44) under the drive of the slider moving cylinder (16), and the tooling claw (41) is used to position the claw plate (51); the tooling guide wheel (45) The pin shaft (46) and the lock nut (47) are used to locate the guide wheel ear plate (49), and the guide wheel ear plate (49) is connected to the standard section (42) through the connecting bolt (48); close to the platform ( 10) is provided with a fixed stand (20) on the left end area, and the four corners of the fixed stand (20) are equipped with end ear plate positioning and clamping devices (21); the right side of the fixed stand (20) An oil cylinder beam ear plate positioning and clamping device (15) is installed on the side. 2 . The welding tool for the climbing frame of a tower crane according to claim 1 , characterized in that the climbing claw ( 41 ) of the tool can rotate around the standard joint ( 42 ) as an axis. 3 .

Images