CN219151979U

CN219151979U - Welding fixture for slender T-shaped component

Info

Publication number: CN219151979U
Application number: CN202223421171.0U
Authority: CN
Inventors: 李金宝; 穆长春; 杨亮; 刘银花; 杨天阳
Original assignee: China Railway Baoji Bridge Group Co Ltd; China Railway Baoji Bridge Yangzhou Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd; China Railway Baoji Bridge Yangzhou Co Ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-06-09
Anticipated expiration: 2032-12-16

Abstract

The utility model discloses a welding fixture for slender T-shaped components, which comprises at least one pair of bases arranged at intervals, wherein each base comprises a top plate for leveling and fixing a T-shaped component transverse plate, the heights of the top plates are the same, a group of pressing mechanisms capable of pressing and fixing the edges of the T-shaped component transverse plate are arranged at the edges of two sides of the base, and a group of pressing mechanisms capable of pressing against the side edges of the T-shaped component transverse plate are also arranged at the edges of two sides of the base; by adopting the technical scheme, the two bases arranged at intervals are used as platforms for installing the T-shaped components to realize the splicing of the T-shaped components, the heights of the top plates of the platforms are equal, the flatness of the T-shaped components can be ensured, the pressing mechanism and the jacking mechanism can respectively limit the upwarp and the sideways bending of the T-shaped components, and the deformation in the welding process is effectively controlled, so that the precision requirement of the final slender T-shaped components is ensured.

Description

Welding fixture for slender T-shaped component

Technical Field

The utility model relates to a welding tool.

Background

At present, the connection of concrete bridge decks in most bridge projects in China is mainly wet connection, namely, two adjacent concrete decks are reserved with post-cast strips, and post-cast strip concrete pouring is carried out on site. The concrete bridge decks of the combined bridge are connected in a dry mode, namely T-shaped connecting members are embedded in the end portions of the concrete deck. When the on-site precast slabs are connected in pairs, only two adjacent T-shaped embedded members are required to be connected, the tops of the connecting pieces are welded, and the lower parts of the connecting pieces are connected by pull rivets. The dry connection mode realizes the field cast-in-place operation without cast-in-place operation, thereby not only greatly accelerating the construction speed, but also saving the construction cost. How to meet the precision of the T-shaped embedded component in the manufacturing process is a key control factor.

In order to control deformation, the method for manufacturing the slender T-shaped component is provided, wherein the slender T-shaped component is divided into a plurality of sections, a plurality of sections of T-shaped components are manufactured first, then the T-shaped components are welded together to form the slender T-shaped component, and deformation control of each T-shaped component during welding is very important in the process of welding the T-shaped components, so that the precision of the final slender T-shaped component is directly affected.

Disclosure of Invention

In order to solve the defects in the prior art, a welding tool for splicing and welding a plurality of sections of T-shaped components and meeting the specification requirements of final slender T-shaped components is provided, and the technical scheme adopted by the utility model is as follows:

the utility model provides a welding frock of long and thin T type component, includes the base that at least a pair of interval set up, each the base include the roof of leveling fixed T component diaphragm, each the roof highly the same base both sides edge be provided with a set of hold-down mechanism that can compress tightly fixed T type component diaphragm edge still be provided with a set of tight mechanism that pushes up that can push up against T type component diaphragm side in base both sides edge.

Further, the jacking mechanism comprises a mounting plate, a jacking bolt is arranged on the mounting plate, a jacking block in contact with the side edge of the transverse plate of the T-shaped member is arranged at the end part of the jacking bolt, and a pre-tightening bolt capable of fixing the jacking block is further arranged on the jacking block.

Further, hold-down mechanism include hold-down bolt, clamp plate and cushion, hold-down bolt pass clamp plate middle part threaded connection and to the roof, the cushion set up between clamp plate and roof and be located clamp plate and the relative one end of T type component diaphragm contact.

Further, a mounting hole for fixing the base is formed in the bottom of the base.

Further, the mounting hole is a waist-shaped hole.

Further, the base also comprises a side plate, a bottom plate, a rib plate and a partition plate, wherein the side plate, the bottom plate and the top plate enclose a rectangle, the rib plate is arranged on the outer side of the side plate and connected with the top plate and the bottom plate, and the partition plate is configured into a rectangular cavity enclosed by the side plate, the bottom plate and the top plate; the mounting holes are formed in the edge of the bottom plate.

By adopting the technical scheme, the two bases arranged at intervals are used as platforms for installing the T-shaped components to realize the splicing of the T-shaped components, the heights of the top plates of the platforms are equal, the flatness of the T-shaped components can be ensured, the pressing mechanism and the jacking mechanism can respectively limit the upwarp and the sideways bending of the T-shaped components, and the deformation in the welding process is effectively controlled, so that the precision requirement of the final slender T-shaped components is ensured.

Drawings

FIG. 1 is a schematic diagram of a practical state of a welding tool of the present utility model;

FIG. 2 is a schematic diagram of a welding tool according to the present utility model;

FIG. 3 is a side view of the welding tool of the present utility model;

Detailed Description

In order to better understand the technical scheme, the following further details are given with reference to the accompanying drawings and specific embodiments:

the welding fixture shown in fig. 1 at least comprises a pair of bases 1 arranged at intervals, the number of the bases 1 is determined according to the number of T-shaped components, only one T-shaped component is arranged on each base 1, and the butt joint welding position of two T-shaped components A is positioned at the interval between the two bases 1. The base 1 comprises top plates 1-1, the flatness of the top plates 1-1 needs to be controlled within 0.03mm, the top plates 1-1 on the two bases 1 are required to be at the same height, as shown in fig. 2, transverse plates on T-shaped components are arranged on the top plates 1-1, a group of pressing mechanisms 2 and a group of propping mechanisms 3 are respectively arranged on two sides of the base 1, wherein the pressing mechanisms 2 are used for pressing and fixing the edges of the two sides of the transverse plates of the T-shaped components, on one hand, the transverse plates of the T-shaped components are tightly attached to the top plates 1-1 to ensure the flatness, on the other hand, the T-shaped components are prevented from bending deformation and upwarp during welding, the propping mechanisms 3 can prop against the two sides of the transverse plates of the T-shaped components so as to be convenient for adjusting the straightness of the two butt-jointed T-shaped components, and on the other hand, the T-shaped components can be prevented from being sideways bent during welding.

The pressing mechanism 2 shown in fig. 2 comprises a pressing bolt 2-1, a pressing plate 2-2 and a cushion block 2-3, wherein the pressing bolt 2-1 is connected to the top plate 1-1 through the middle of the pressing plate 2-2 in a threaded manner, the cushion block 2-3 is arranged between the pressing plate 2-2 and the top plate 1-1 and is positioned at one end, opposite to the contact end, of the pressing plate 2-2 with the T-shaped component transverse plate, of the pressing plate 2-2 positioned at the position of the cushion block 2-3 is tilted upwards when the pressing bolt 2-1 is screwed, and the other end is pressed downwards so as to press the side edge of the T-shaped component transverse plate.

As shown in FIG. 2, the tightening mechanism 3 comprises a mounting plate 3-1, a tightening bolt 3-2 is arranged on the mounting plate 3-1, a jacking block 3-3 is arranged at the end part of the tightening bolt 3-2, a pre-tightening bolt 3-4 is further arranged on the jacking block (3-3), and the pre-tightening bolt 3-4 can fix the jacking block 3-3 after the jacking block 3-3 is jacked in place, so that a strip hole arranged on the jacking block 3-3 is matched with the pre-tightening bolt 3-4 to facilitate the movement of the jacking block 3-3, and the jacking block 3-3 can apply force to the side of a T-shaped member when the tightening bolt 3-2 is screwed, so that the transverse limit of the T-shaped member is realized through the tightening mechanisms 3 on two sides.

In order to avoid deformation errors of finally obtained slender T-shaped components caused by movement of the base 1 in the welding process, the base is provided with a mounting hole 1-2 for fixing the base 1 on the bottom surface, the height and the level of the top plate 1-1 are adjusted by increasing or decreasing gaskets on bolts for fixing the base 1, and in order to conveniently adjust the position relationship between the two bases 1, the mounting hole 1-2 is designed as a waist-shaped hole, so that the base 1 can be conveniently moved and adjusted in the length direction.

In the embodiment shown in fig. 3, the base 1 further comprises two side plates 1-3 and a bottom plate 1-4, the side plates 1-3, the top plate 1-1 and the bottom plate 1-4 are welded to form a rectangle, a group of rib plates 1-5 are arranged outside the side plates 1-3 and welded between the top plate 1-1, the bottom plate 1-4 and the side plates 1-3 to strengthen the rigidity of the base 1, and a group of partition plates 1-6 are arranged in a rectangular inner cavity formed by the side plates 1-3, the top plate 1-1 and the bottom plate 1-4 to strengthen the base, so that the mounting holes 1-2 are arranged at the edges of the bottom plate 1-4.

Claims

1. The utility model provides a welding frock of long and thin T type component, includes base (1) that at least a pair of interval set up, each base (1) include the roof (1-1) of the fixed T component diaphragm of level, each the height of roof (1-1) is the same, its characterized in that: the two side edges of the base (1) are provided with a group of pressing mechanisms (2) which can press and fix the edges of the transverse plates of the T-shaped members, and the two side edges of the base (1) are also provided with a group of pushing mechanisms (3) which can push against the side edges of the transverse plates of the T-shaped members.

2. The welding fixture for an elongated T-shaped member of claim 1, wherein: the jacking mechanism (3) comprises a mounting plate (3-1), a jacking bolt (3-2) is arranged on the mounting plate (3-1), a jacking block (3-3) contacted with the side edge of the transverse plate of the T-shaped component is arranged at the end part of the jacking bolt (3-2), and a pre-tightening bolt (3-4) capable of fixing the jacking block (3-3) is further arranged on the jacking block (3-3).

3. The welding fixture for an elongated T-shaped member of claim 1, wherein: the pressing mechanism (2) comprises a pressing bolt (2-1), a pressing plate (2-2) and a cushion block (2-3), the pressing bolt (2-1) penetrates through the middle of the pressing plate (2-2) to be connected to the top plate (1-1) in a threaded mode, and the cushion block (2-3) is arranged between the pressing plate (2-2) and the top plate (1-1) and located at one end, opposite to the contact end of the T-shaped component transverse plate, of the pressing plate (2-2).

4. The welding fixture for an elongated T-shaped member of claim 1, wherein: the bottom of the base (1) is provided with a mounting hole (1-2) for fixing the base (1).

5. The welding fixture for a T-shaped member according to claim 4, wherein: the mounting holes (1-2) are waist-shaped holes.

6. A welding fixture for an elongated T-shaped member according to claim 4 or 5, wherein: the base (1) further comprises side plates (1-3), a bottom plate (1-4), rib plates (1-5) and a partition plate (1-6), wherein the side plates (1-3), the bottom plate (1-4) and the top plate (1-1) are enclosed to form a rectangle, the rib plates (1-5) are arranged on the outer sides of the side plates (1-3) and are connected with the top plate (1-1) and the bottom plate (1-4), and the partition plate (1-6) is configured into a rectangular cavity enclosed by the side plates (1-3), the bottom plate (1-4) and the top plate (1-1); the mounting holes (1-2) are arranged at the edges of the bottom plate (1-4).