A welding device for building steel trusses

Abstract

The utility model discloses a welding device for building steel trusses, which comprises: a base, a rotating shaft is fixedly connected to the middle position of the upper side of the base, a fixed block and a moving block are arranged on the base at both sides of the rotating shaft, a slide groove is arranged on the fixed block and the moving block, a fixing mechanism is slidably connected in the slide groove, the fixing mechanism comprises a U-shaped slider, a fixing groove is arranged on the upper side of the U-shaped slider, a pressure plate is slidably connected in the fixing groove, a bolt is threadedly connected to the outer side of the U-shaped slider, the inner end of the bolt is rotatably connected to the pressure plate, a limiting mechanism is arranged in the U-shaped slider located at the lower side of the fixing groove, the limiting mechanism comprises a limiting groove, the limiting groove is located in the U-shaped slider, and a push plate is slidably connected, a limiting rod is fixedly connected to the outer side of the push plate, and a first spring is fixedly connected to the inner side, and limiting holes are arranged on the fixed block and the moving block located on the outer side of the slide groove. Through the above structure, the problems of complex structure, high cost and disadvantageous for later maintenance are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel truss welding in construction engineering, in particular to a welding device for a steel truss in construction. Background Art

[0002] Steel trusses refer to trusses made of steel. Steel trusses are often used as the main load-bearing components in roof structures, crane beams, bridges and hydraulic gates of industrial and civil buildings. Various towers, such as mast towers, TV towers and transmission line towers, often use spatial steel trusses composed of three-sided, four-sided or multi-sided plane trusses.

[0003] When applying for a patent, a search revealed a Chinese patent with patent number CN202220056818.5: a welding and fixing device for steel trusses in construction projects. It is inconvenient to limit and fix the second slide rail by threaded nails. When adjusting the position of the second slide rail, it is necessary to first unscrew the threaded nails from the threaded holes on the upper end of the base. After the second slide rail is adjusted to a suitable position, the threaded nails are screwed into the threaded holes to fix the second slide rail. At the same time, a number of threaded holes are arranged on the base. When welding the steel trusses, the waste chips generated by welding are easy to enter the threaded holes. The threaded holes are prone to blockage when the device is used for a long time. At the same time, the original device arranges fixed plates on both sides of the upper end of the slide plate, and two clamps are arranged between the two fixed plates to clamp and fix the steel truss. The movement of the two clamps requires the rotation of two threaded rods respectively, which is less practical.

[0004] When applying for a patent, a search revealed a Chinese patent with patent number CN202221763646.1: a welding and fixing device for steel trusses in construction projects. This device solves the problem of easy blockage and poor practicality of threaded holes in the above patent. However, the device uses a motor to drive the slide to move, which has a complex structure, high cost, and is not conducive to later maintenance. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a construction steel truss welding device, which solves the problems of complex structure, high cost and disadvantageous later maintenance.

[0006] The utility model also provides the above-mentioned building steel truss welding device, comprising: a base, a rotating shaft fixedly connected to the middle position on the upper side of the base, a fixed block and a movable block are provided on the base located on both sides of the rotating shaft, and a sliding groove is provided on the fixed block and the movable block. A fixing mechanism is slidably connected in the sliding groove, and the fixing mechanism comprises a U-shaped sliding block, a fixing groove is provided on the upper side of the U-shaped sliding block, a pressure plate is slidably connected in the fixing groove, a bolt is threadedly connected to the outer side of the U-shaped sliding block, and the inner end of the bolt is rotatably connected to the pressure plate, and a limiting mechanism is provided in the U-shaped sliding block located at the lower side of the fixing groove, and the limiting mechanism comprises a limiting groove, the limiting groove is located in the U-shaped sliding block and is slidably connected with a push plate, the outer side of the push plate is fixedly connected to a limiting rod, and the inner side of the push plate is fixedly connected to a first spring, and a limiting hole is provided on the fixed block and the movable block located on the outer side of the sliding groove.

[0007] According to the described construction steel truss welding device, one end of the moving block is fixedly connected to a connecting plate, and the other end is fixedly connected to a right-angle plate, the connecting plate is rotatably connected to a rotating shaft, the lower end of the right-angle plate is slidably connected to a pin, and a second spring is sleeved on the pin located on the inner side of the right-angle plate.

[0008] According to the construction steel truss welding device, a socket is provided on the outer periphery of the base, and the latch is slidably connected to the socket.

[0009] According to the construction steel truss welding device, a fixing bar is fixedly connected to the lower side of the fixing block, and a moving wheel is fixedly connected to the lower side of the moving block.

[0010] According to the construction steel truss welding device, there are two limit mechanisms, which are symmetrically arranged on both sides of the U-shaped sliding block.

[0011] According to the construction steel truss welding device, the limiting rod is slidably connected to the limiting hole.

[0012] According to the construction steel truss welding device, the inner walls of the pressing plate and the U-shaped sliding block are fixedly connected with rubber pads.

[0013] According to the construction steel truss welding device, a cushion block is fixedly connected to the lower side of the base.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, by providing fixing mechanisms on both the fixed block and the movable block, the steel frame can be fixed by rotating bolts under the action of the U-shaped slider and the pressure plate, which is simple to operate and low in cost.

[0016] 2. In the utility model, by providing a limit mechanism on both sides of the U-shaped slider, when it is necessary to weld a small workpiece, the limit rods on both sides of the fixed block and the movable block are pressed to move the limit rods inward, and then the U-shaped slider is slid, and a suitable limit hole is selected. Under the action of the first spring, the limit rod is reset and inserted into the limit hole, which has good flexibility.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments;

[0019] Figure 1 This is a structural diagram of a building steel truss welding device of the utility model;

[0020] Figure 2 This is a side view of a welding device for building steel trusses according to the utility model;

[0021] Figure 3 This is a structural diagram of a fixing mechanism of a building steel truss welding device of the utility model;

[0022] Figure 4 This is a cross-sectional view of a U-shaped slider of a building steel truss welding device of the utility model.

[0023] Legend:

[0024] 1. Base; 2. Fixed block; 3. Moving block; 4. Slide groove; 5. Fixing mechanism; 51. U-shaped slider; 52. Fixed groove; 53. Pressure plate; 54. Bolt; 55. Rubber pad; 56. Limiting mechanism; 561. Limiting groove; 562. First spring; 563. Push plate; 564. Limiting rod; 6. Connecting plate; 7. Right-angle plate; 8. Rotating shaft; 9. Socket; 10. Latch; 11. Second spring; 12. Fixed bar; 13. Moving wheel; 14. Limiting hole. DETAILED DESCRIPTION

[0025] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0026] Reference Figure 1-4The utility model embodiment is a building steel truss welding device, which includes a base 1, the upper surface of the base 1 is provided with a degree, the middle position of the upper side of the base 1 is fixedly connected with a rotating shaft 8, and the lower side is fixedly connected with a cushion block, and the base 1 located on both sides of the rotating shaft 8 is provided with a fixed block 2 and a moving block 3, the lower side of the fixed block 2 is fixedly connected with a fixed bar 12, and the lower side of the moving block 3 is fixedly connected with a moving wheel 13, and the moving block 3 is convenient to move by the moving wheel 13, and the fixed block 2 and the moving block 3 are both provided with a slide groove 4, and a fixing mechanism 5 is slidably connected in the slide groove 4;

[0027] The fixing mechanism 5 includes a U-shaped slider 51, a fixing groove 52 is provided on the upper side of the U-shaped slider 51, a pressure plate 53 is slidably connected in the fixing groove 52, a rubber pad 55 is fixedly connected to the inner wall of the pressure plate 53 and the U-shaped slider 51, a bolt 54 is threadedly connected to the outer side of the U-shaped slider 51, and the inner end of the bolt 54 is rotatably connected to the pressure plate 53, and a limiting mechanism 56 is provided in the U-shaped slider 51 located at the lower side of the fixing groove 52, and there are two limiting mechanisms 56, which are symmetrically arranged on both sides of the U-shaped slider 51;

[0028] The limiting mechanism 56 includes a limiting groove 561, which is located in the U-shaped slider 51 and is slidably connected to a push plate 563. The outer side of the push plate 563 is fixedly connected to a limiting rod 564, and the inner side is fixedly connected to a first spring 562. The fixed block 2 and the moving block 3 located outside the slide groove 4 are provided with a limiting hole 14, and the limiting rod 564 is slidably connected to the limiting hole 14.

[0029] One end of the moving block 3 is fixedly connected to a connecting plate 6, and the other end is fixedly connected to a right-angle plate 7. The connecting plate 6 is rotatably connected to a rotating shaft 8. The moving block 3 makes a circular motion with the rotating shaft 8 as the center. A latch 10 is slidably connected to the lower end of the right-angle plate 7. A second spring 11 is sleeved on the latch 10 located on the inner side of the right-angle plate 7. A socket 9 is provided on the outer periphery of the base 1, and the latch 10 is slidably connected to the socket 9.

[0030] Working principle: When in use, place the steel frame to be welded in the fixing groove 52 on the U-shaped slider 51, then turn the bolt 54 to fix the steel frame with the pressing plate 53, then pull the latch 10 on the right angle plate 7 outward, turn the right angle plate 7, select a suitable angle according to the degree on the base 1, and then plug the latch 10 into the socket 9 under the action of the second spring 11, and weld by carbon dioxide, which is simple to operate and low in cost;

[0031] When welding of small workpieces is required, the limiting rods 564 on both sides of the fixed block 2 and the movable block 3 are pressed to move the limiting rods 564 inward, and then the U-shaped slider 51 is slid to select a suitable limiting hole 14. Under the action of the first spring 562, the limiting rod 564 is reset and inserted into the limiting hole 14, which has good flexibility.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A building steel truss welding device, characterized in that: include: A base (1), wherein a rotating shaft (8) is fixedly connected at the middle position on the upper side of the base (1), and a fixed block (2) and a movable block (3) are provided on the base (1) on both sides of the rotating shaft (8), and a slide groove (4) is provided on the fixed block (2) and the movable block (3), and a fixing mechanism (5) is slidably connected in the slide groove (4), and the fixing mechanism (5) comprises a U-shaped slider (51), and a fixing groove (52) is provided on the upper side of the U-shaped slider (51), and a pressure plate (53) is slidably connected in the fixing groove (52), and a bolt (53) is threadedly connected to the outer side of the U-shaped slider (51). 54), the inner end of the bolt (54) is rotatably connected to the pressure plate (53), and a limiting mechanism (56) is provided in the U-shaped slider (51) located at the lower side of the fixed groove (52), and the limiting mechanism (56) includes a limiting groove (561), and the limiting groove (561) is located in the U-shaped slider (51) and is slidably connected to a push plate (563), and the outer side of the push plate (563) is fixedly connected to a limiting rod (564), and the inner side is fixedly connected to a first spring (562), and limiting holes (14) are provided on the fixed block (2) and the movable block (3) located at the outer side of the slide groove (4).

2. A construction steel truss welding device according to claim 1, characterized in that: One end of the moving block (3) is fixedly connected to a connecting plate (6), and the other end is fixedly connected to a right-angle plate (7); the connecting plate (6) is rotatably connected to a rotating shaft (8); the lower end of the right-angle plate (7) is slidably connected to a latch (10); a second spring (11) is sleeved on the latch (10) located on the inner side of the right-angle plate (7).

3. A construction steel truss welding device according to claim 2, characterized in that: The base (1) is provided with a plug hole (9) on its outer periphery, and the latch (10) is slidably connected to the plug hole (9).

4. A construction steel truss welding device according to claim 3, characterized in that: A fixing bar (12) is fixedly connected to the lower side of the fixing block (2), and a moving wheel (13) is fixedly connected to the lower side of the moving block (3).

5. A construction steel truss welding device according to claim 4, characterized in that: There are two limit mechanisms (56), which are symmetrically arranged on both sides of the U-shaped sliding block (51).

6. A construction steel truss welding device according to claim 5, characterized in that: The limiting rod (564) is slidably connected to the limiting hole (14).

7. A construction steel truss welding device according to claim 6, characterized in that: The inner walls of the pressing plate (53) and the U-shaped sliding block (51) are both fixedly connected with rubber pads (55).

8. A construction steel truss welding device according to claim 7, characterized in that: A cushion block is fixedly connected to the lower side of the base (1).

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