CN113927139A

CN113927139A - Welding fixture for H-shaped steel

Info

Publication number: CN113927139A
Application number: CN202111113653.7A
Authority: CN
Inventors: 高青; 渠韡; 余海霞; 檀林明
Original assignee: Wuhu Tianhang Heavy Industry Co Ltd
Current assignee: Wuhu Tianhang Heavy Industry Co Ltd
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-01-14

Abstract

The invention discloses a welding fixture for H-shaped steel in the technical field of steel structure production, which comprises a compression assembly, a base and two groups of movable frames with the same structure, wherein guide rails in sliding connection with the movable frames are arranged on the periphery of the top of the base, supporting blocks are arranged on the opposite sides of the two groups of movable frames, placing blocks are movably inserted into the tops of the supporting blocks and fixedly connected with the end parts of pressure rods, the two groups of pressure rods are arranged, the pressure rods can move downwards to a certain height through the supporting blocks on the movable frames, the subsequent assembly of the pressure rods is facilitated, and the placing blocks capable of being inserted into the supporting blocks are arranged at the end parts of the pressure rods, so that when the pressure rods are assembled, the placing blocks are firstly aligned and inserted into the supporting blocks and then fixed through bolts, and the assembly is greatly facilitated.

Description

Welding fixture for H-shaped steel

Technical Field

The invention relates to the technical field of steel structure production, in particular to a welding fixture for H-shaped steel.

Background

The welding of H-shaped steel is classified into submerged arc welding of H-shaped steel and high frequency welding of H-shaped steel due to the fact that the H-shaped steel is manufactured with the H-shaped section through the welding process. The submerged-arc welding process of the H-shaped steel comprises the following steps: steel plate-automatic strip-splitting-assembling-automatic submerged arc welding-flaw detection-flange correction-web correction-end face processing-sand blasting and derusting-paint spraying.

Before automatic submerged arc welding, the assembly plate needs to be compressed and positioned through a welding fixture, the flanges on two sides are compressed through a liftable compression rod by the aid of the conventional welding fixture, the flanges are not tilted upwards, and the flanges on two sides are positioned and clamped by the positioning plates on two sides, so that the flanges on two sides are tightly attached to the web in the middle, and welding can be started.

The compression bar on the welding fixture is inconvenient to assemble, and therefore the welding fixture for the H-shaped steel is provided.

Disclosure of Invention

The invention aims to provide a welding fixture for H-shaped steel, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the welding fixture for the H-shaped steel comprises a compression assembly, a welding fixture and a welding fixture, wherein the compression assembly comprises a base and two groups of movable frames with the same structure, guide rails which are connected with the movable frames in a sliding mode are arranged on the periphery of the top of the base, supporting blocks are arranged on the opposite sides of the two groups of movable frames, placing blocks are movably inserted into the tops of the supporting blocks and fixedly connected with the end portions of pressing rods, the two groups of pressing rods are arranged, and the placing blocks are fixedly connected with the supporting blocks through bolts; the driving assembly is connected with the movable frame; the positioning assembly is arranged on the base; and the supporting component is arranged on the base.

As a preferable aspect of the welding jig for H-shaped steel of the present invention, wherein: the driving assembly comprises two groups of mounting seats with the same structure, the opposite sides of the mounting seats are fixedly connected to the base, the tops of the mounting seats are provided with driving motors, and the power ends of the tops of the driving motors are provided with screw rods.

As a preferable aspect of the welding jig for H-shaped steel of the present invention, wherein: the two groups of screw rods are respectively in threaded connection with the two groups of movable frames, and the two groups of movable frames are vertically provided with screw holes.

As a preferable aspect of the welding jig for H-shaped steel of the present invention, wherein: the positioning assembly comprises four groups of supporting rods with the same structure, the supporting rods are provided with air cylinders, power ends of the air cylinders are connected with fixing grooves, and positioning plates are installed on the fixing grooves.

As a preferable aspect of the welding jig for H-shaped steel of the present invention, wherein: the supporting component comprises four groups of hydraulic cylinders with the same structure, piston rods at the tops of the four groups of hydraulic cylinders are provided with mounting frames, and supporting wheels are installed on the mounting frames in a rotating mode.

As a preferable aspect of the welding jig for H-shaped steel of the present invention, wherein: the bottom of bracing piece and pneumatic cylinder all is fixed on the base, be provided with the slipmat on the locating plate.

As a preferable aspect of the welding jig for H-shaped steel of the present invention, wherein: the base is provided with the installation piece all around, and all seted up the mounting hole on the installation piece.

As a preferable aspect of the welding jig for H-shaped steel of the present invention, wherein: the bottom of mount pad and the bottom parallel and level of base.

As a preferable aspect of the welding jig for H-shaped steel of the present invention, wherein: the bottom of base is provided with the blotter, and evenly is provided with the buffer block on the blotter.

As a preferable aspect of the welding jig for H-shaped steel of the present invention, wherein: the buffer block is of a semicircular structure.

Compared with the prior art, the invention has the beneficial effects that: can drive the movable rack on the lead screw through driving motor and move under the direction of guide rail for supporting shoe on the movable rack can remove to a take the altitude downwards, makes things convenient for follow-up equipment depression bar, can peg graft the piece of placing on the supporting shoe through the tip setting at the depression bar, makes when the equipment depression bar, will place the piece and aim at earlier after pegging graft on the supporting shoe, and rethread bolt fastening has greatly made things convenient for the equipment.

Drawings

FIG. 1 is a schematic view showing the overall structure of a welding jig for H-shaped steel according to the present invention;

FIG. 2 is a partial structural view of a welding jig for H-shaped steel according to the present invention.

In the figure: 1. a compression assembly; 11. a base; 12. a guide rail; 13. a movable frame; 14. a support block; 15. placing the blocks; 16. a pressure lever; 2. a drive assembly; 21. a mounting seat; 22. a drive motor; 23. a screw rod; 3. a positioning assembly; 31. a support bar; 32. a cylinder; 33. fixing grooves; 34. positioning a plate; 4. a support assembly; 41. a hydraulic cylinder; 42. a mounting frame; 43. and supporting the wheels.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 2, the welding fixture for H-shaped steel comprises a pressing assembly 1, which comprises a base 11 and two sets of movable frames 13 with the same structure, wherein guide rails 12 slidably connected with the movable frames 13 are arranged on the periphery of the top of the base 11, the movable frames 13 can be guided, supporting blocks 14 are arranged on the opposite sides of the two sets of movable frames 13, placing blocks 15 are movably inserted into the tops of the supporting blocks 14, the placing blocks 15 are fixedly connected with the ends of pressing rods 16, the pressing rods 16 are provided with two sets of pressing rods, and the placing blocks 15 are fixedly connected with the supporting blocks 14 through bolts, so that the pressing rods 16 can move along with the movable frames 13 and further move downwards to press flanges on two sides; the driving assembly 2 is connected with the movable frame 13; the positioning component 3 is arranged on the base 11; and a support member 4, the support member 4 being provided on the base 11.

Referring to fig. 1 to 2, the driving assembly 2 includes two sets of mounting seats 21 having the same structure, opposite sides of the two sets of mounting seats 21 are fixedly connected to the base 11, top portions of the two sets of mounting seats 21 are respectively provided with a driving motor 22, power ends of top portions of the driving motors 22 are respectively provided with a screw rod 23, the driving motors 22 are connected with power ends thereof through speed reducers, and are connected with an external power supply through external power supply wires, and are controlled to be turned on and off through an external power supply switch, before assembly, the driving motors 22 drive the movable frames 13 on the screw rods 23 to move downwards under the guidance of the guide rails 12, so that the supporting blocks 14 move downwards to a certain height, thereby facilitating subsequent assembly of the pressing rods 16, the placing blocks 15 on the prepared pressing rods 16 are aligned and inserted on the supporting blocks 14, namely, the pressing rods 16 are supported by the supporting blocks 14, and the pressing rods 16 are positioned, and finally the supporting blocks 14 and the placing blocks 15 are fixed by bolts, the compression bar 16 can be quickly assembled.

Referring to fig. 1, two sets of lead screws 23 are respectively connected with two sets of movable frames 13 in a threaded manner, and the two sets of movable frames 13 are vertically provided with screw holes, so that the lead screws 23 can drive the movable frames 13 to lift when rotating.

Referring to fig. 1, the positioning assembly 3 includes four sets of support rods 31 having the same structure, a cylinder 32 is disposed on each support rod 31, a fixing groove 33 is connected to a power end of each cylinder 32, a positioning plate 34 is mounted on each fixing groove 33, and flanges on two sides can be clamped and positioned by the cylinders 32.

Referring to fig. 1, the supporting assembly 4 includes four sets of hydraulic cylinders 41 with the same structure, piston rods at the tops of the four sets of hydraulic cylinders 41 are all provided with a mounting bracket 42, and a supporting wheel 43 is rotatably mounted on the mounting bracket 42, the supporting wheel 43 is driven by the hydraulic cylinders 41 to move upwards, so that the bottom of the web plate can be supported by the supporting wheel 43, and after welding is completed, the web plate and flanges at two sides can be conveniently moved.

Referring to fig. 1, the bottom of the support rod 31 and the bottom of the hydraulic cylinder 41 are fixed on the base 11, and the positioning plate 34 is provided with a non-slip mat, so that the positioning effect can be improved.

Referring to fig. 1, the base 11 is provided with the installation piece all around, and has all seted up the mounting hole on the installation piece, conveniently fixes the base 11.

Referring to fig. 1, the bottom of the mounting seat 21 is flush with the bottom of the base 11, so as to support the mounting seat 21.

Referring to fig. 1, the bottom of base 11 is provided with the blotter, and evenly is provided with the buffer block on the blotter, not drawn in the figure, adopts blotter and buffer block that rubber made, can cushion base 11, avoids pressure too big, damages ground.

Referring to fig. 1, the buffer block has a semicircular structure, which can better provide buffering.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

Welding jig of H shaped steel, its characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the pressing assembly (1) comprises a base (11) and two groups of movable frames (13) with the same structure, guide rails (12) in sliding connection with the movable frames (13) are arranged on the periphery of the top of the base (11), supporting blocks (14) are arranged on the opposite sides of the two groups of movable frames (13), placing blocks (15) are movably inserted into the tops of the supporting blocks (14), the placing blocks (15) are fixedly connected with the end portions of pressing rods (16), the two groups of pressing rods (16) are arranged, and the placing blocks (15) are fixedly connected with the supporting blocks (14) through bolts;

the driving assembly (2), the said driving assembly (2) is connected with movable shelf (13);

the positioning component (3), the positioning component (3) is arranged on the base (11); and the number of the first and second groups,

a support component (4), the support component (4) is arranged on the base (11).
2. The welding jig for H-shaped steel according to claim 1, characterized in that: the driving assembly (2) comprises two groups of mounting seats (21) with the same structure, the opposite sides of the mounting seats (21) are fixedly connected to the base (11), the top of each mounting seat (21) is provided with a driving motor (22), and the power end of the top of each driving motor (22) is provided with a screw rod (23).
3. The welding jig for H-shaped steel according to claim 2, characterized in that: the two groups of screw rods (23) are respectively in threaded connection with the two groups of movable frames (13), and screw holes are vertically formed in the two groups of movable frames (13).
4. The welding jig for H-shaped steel according to claim 1, characterized in that: the positioning assembly (3) comprises four groups of supporting rods (31) with the same structure, a cylinder (32) is arranged on each supporting rod (31), a fixing groove (33) is connected to the power end of each cylinder (32), and a positioning plate (34) is installed on each fixing groove (33).
5. The welding jig for H-shaped steel according to claim 4, characterized in that: the supporting component (4) comprises four groups of hydraulic cylinders (41) with the same structure, piston rods at the tops of the hydraulic cylinders (41) are provided with mounting frames (42), and supporting wheels (43) are rotatably mounted on the mounting frames (42).
6. The welding jig for H-shaped steel according to claim 5, characterized in that: the bottoms of the supporting rod (31) and the hydraulic cylinder (41) are fixed on the base (11), and the positioning plate (34) is provided with an anti-skid pad.
7. The welding jig for H-shaped steel according to claim 1, characterized in that: the periphery of the base (11) is provided with mounting blocks, and mounting holes are formed in the mounting blocks.
8. The welding jig for H-shaped steel according to claim 2, characterized in that: the bottom of the mounting seat (21) is flush with the bottom of the base (11).
9. The welding jig for H-shaped steel according to claim 1, characterized in that: the bottom of base (11) is provided with the blotter, and evenly is provided with the buffer block on the blotter.
10. The welding jig for H-shaped steel according to claim 9, characterized in that: the buffer block is of a semicircular structure.