CN212885992U

CN212885992U - Square tube welding tool

Info

Publication number: CN212885992U
Application number: CN202021785494.6U
Authority: CN
Inventors: 林乔宇
Original assignee: Wuxi Johnnywell Railway Equipment Technology Co ltd
Current assignee: Wuxi Johnnywell Railway Equipment Technology Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-04-06
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a side's pipe welding frock belongs to welding frock technical field. The square tube welding tool comprises a central outer tube, an adjustable base and a plurality of guide pillars; the central outer pipe and the plurality of guide pillars vertically penetrate through and are connected with the adjustable base in a sliding manner; the top end of the central outer pipe is fixedly connected with a tensioning inner support, and a square pipe to be welded is tensioned and fixed from the inside; an inner supporting core rod penetrates through the inner part of the central outer tube, and the inner supporting core rod slides back and forth along the inner wall of the central outer tube; the top end of the inner supporting core rod is provided with an inverted circular truncated cone sliding block, and the inverted circular truncated cone sliding block slides back and forth along the inner wall of the tensioning inner support, so that the tensioning inner support expands outwards or tightens inwards. The square tube welding tool is clamped and fixed from the inside of a square tube to be welded through the tensioning inner support, the clamping force is stable and adjustable, and compared with the clamping of a traditional vice, the square tube welding tool cannot deform; the square tubes with different lengths can be clamped by adjusting the position of the adjustable base.

Description

Square tube welding tool

Technical Field

The utility model relates to a welding frock technical field, in particular to side's pipe welding frock.

Background

The square pipe is a hollow square section light thin-wall steel pipe, also called steel cold-bending section. The Q235 hot-rolled or cold-rolled strip steel or coiled plate is used as a base material, and is subjected to cold bending processing forming and high-frequency welding to prepare the section steel with the square cross section and the size. The hot-rolled super-thick wall square tube has the condition that the wall thickness is thickened, and the size of the corner part and the straightness of the side part of the hot-rolled super-thick wall square tube reach or even exceed the level of a resistance welding cold forming square tube. The composite material has the advantages of good comprehensive mechanical property, good weldability, good cold and hot processing properties and good corrosion resistance, and has good low-temperature toughness.

The square tube can be used for construction, machine manufacturing, projects such as steel construction, shipbuilding, solar power generation supports, steel structure engineering, electric power engineering, power plants, agricultural and chemical machinery, glass curtain walls, automobile chassis, airports, boiler construction, highway railings, house construction, pressure vessels, oil storage tanks, bridges, power station equipment, hoisting and transportation machinery and other welding structural parts with higher load, and the like.

The traditional square tube is a hollow tube with openings at two ends, but when the square tube is used in some special occasions, the end parts of the square tube need to be welded with end surfaces of different structures; square pipe uses the vice to carry out the clamping usually in welding process and fixes, and the clamping precision is lower, and the clamp force is difficult to control, and great easy square pipe clamp warp, and less skew can take place in welding process.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a square tube welding frock to it is lower to solve current square tube welding and use vice clamping precision, and the difficult problem of control of clamp force.

In order to solve the technical problem, the utility model provides a square tube welding tool, which comprises a central outer tube, an adjustable base and a plurality of guide pillars; the central outer pipe and the plurality of guide pillars vertically penetrate through and are connected with the adjustable base in a sliding manner;

the top end of the central outer pipe is fixedly connected with a tensioning inner support, and a square pipe to be welded is tensioned and fixed from the inside;

an inner supporting core rod penetrates through the inner part of the central outer tube, and the inner supporting core rod slides back and forth along the inner wall of the central outer tube;

the top end of the inner supporting core rod is provided with an inverted circular truncated cone sliding block, and the inverted circular truncated cone sliding block slides back and forth along the inner wall of the tensioning inner support, so that the tensioning inner support expands outwards or tightens inwards.

Optionally, the central outer tube is slidably connected to the adjustable base through a central bushing.

Optionally, the plurality of guide pillars are slidably connected with the adjustable base through guide pillar bushings respectively.

Optionally, a center anchor ear is sleeved on the center outer pipe, and the center anchor ear is fixedly connected with the center outer pipe through a plurality of bolts vertically penetrating through the center anchor ear.

Optionally, the central hoop is in contact with the bottom end of the adjustable base.

Optionally, a plurality of guide pillars are respectively sleeved with a guide pillar hoop, and the guide pillar hoop is fixedly connected with the guide pillars through a plurality of guide pillar hoop bolts which vertically penetrate through the guide pillar hoop.

Optionally, the guide pillar hoop is in contact with the bottom end of the adjustable base.

Optionally, the tensioning inner support is composed of a plurality of inner support pieces arranged at intervals and an inner support base, the inner wall of each inner support piece is a conical inclined plane and is in contact with the inverted round table sliding block, and the outer wall of each inner support piece is square and is in contact with the inner wall of the square pipe to be welded.

Optionally, the bottom end of the inner supporting core rod is fixedly connected with an air cylinder or a hydraulic cylinder.

The utility model provides a square tube welding tool, which comprises a central outer tube, an adjustable base and a plurality of guide pillars; the central outer pipe and the plurality of guide pillars vertically penetrate through and are connected with the adjustable base in a sliding manner; the top end of the central outer pipe is fixedly connected with a tensioning inner support, and a square pipe to be welded is tensioned and fixed from the inside; an inner supporting core rod penetrates through the inner part of the central outer tube, and the inner supporting core rod slides back and forth along the inner wall of the central outer tube; the top end of the inner supporting core rod is provided with an inverted circular truncated cone sliding block, and the inverted circular truncated cone sliding block slides back and forth along the inner wall of the tensioning inner support, so that the tensioning inner support expands outwards or tightens inwards. The square tube welding tool is clamped and fixed from the inside of a square tube to be welded through the tensioning inner support, the clamping force is stable and adjustable, and compared with the clamping of a traditional vice, the square tube welding tool cannot deform; the square tubes with different lengths can be clamped by adjusting the position of the adjustable base.

Drawings

Fig. 1 is a schematic view of the overall structure of a square tube welding tool provided by the present invention;

fig. 2 is a cross-sectional view of a square tube welding tool provided by the utility model;

fig. 3 is a partial enlarged view of the square tube welding tool provided by the utility model;

fig. 4 is the utility model provides a pair of square pipe welding frock tight internal stay's that rises structural schematic.

Detailed Description

The following describes the square tube welding tool according to the present invention in further detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It should be noted that the drawings are in simplified form and are not to precise scale, and are provided for convenience and clarity in order to facilitate the description of the embodiments of the present invention.

Example one

The utility model provides a square tube welding tool, the structure of which is shown in figure 1 and figure 2, and the square tube welding tool comprises a central outer tube 1, an adjustable base 2 and a plurality of guide pillars 3; the central outer pipe 1 and the plurality of guide pillars 3 vertically penetrate through and are connected with the adjustable base 2 in a sliding manner; the top end of the central outer tube 1 is fixedly connected with a tensioning inner support 4, and a square tube to be welded is fixed in a tensioning manner from the inside; an inner supporting core rod 5 penetrates through the inner part of the central outer tube 1, and the inner supporting core rod 5 slides back and forth along the inner wall of the central outer tube 1; the top end of the inner supporting core rod 5 is provided with an inverted circular truncated cone sliding block 51, and the inverted circular truncated cone sliding block 51 slides back and forth along the inner wall of the tensioning inner support 4, so that the tensioning inner support 4 expands outwards or tightens inwards; when the inner support core rod 5 drives the inverted circular truncated cone sliding block 51 to move downwards, the diameter of the contact surface of the inverted circular truncated cone sliding block 51 and the tensioning inner support 4 is gradually increased, the tensioning inner support 4 expands outwards to contact with the inner wall of the square pipe to be welded, and the square pipe to be welded is clamped and fixed; the bottom end of the inner support core rod 5 is fixedly connected with an air cylinder or a hydraulic cylinder, and the air cylinder or the hydraulic cylinder provides a push-pull force to drive the inner support core rod 5 to move back and forth.

Specifically, as shown in fig. 3, the central outer tube 1 is slidably connected to the adjustable base 2 through a central bushing; the guide posts 3 are connected with the adjustable base 2 in a sliding mode through guide post bushings respectively; the adjustable base 2 can be used for clamping square pipes with different lengths by adjusting the positions of the adjustable base on the central outer pipe 1 and the guide post 3; a central hoop 6 is sleeved on the central outer pipe 1, the central hoop 6 is fixedly connected with the central outer pipe 1 through a plurality of bolts vertically penetrating through the central hoop 6, and the central hoop 6 is contacted with the bottom end of the adjustable base 2; a plurality of guide pillars 3 are respectively sleeved with a guide pillar hoop 7, the guide pillar hoop 7 is fixedly connected with the guide pillars 3 through a plurality of bolts vertically penetrating through the guide pillar hoop 7, and the guide pillar hoop 7 is contacted with the bottom end of the adjustable base 2; the lower limit of the adjustable base 2 can be limited by the central anchor ear 6 and the guide post anchor ear 7.

Specifically, as shown in fig. 4, the tension inner support 4 is composed of a plurality of inner support pieces 41 and an inner support base 42 which are arranged at intervals, the inner wall of each inner support piece 41 is a conical inclined surface and is in contact with the inverted frustum slider 51, and the outer wall of each inner support piece is square and is in contact with the inner wall of the square pipe to be welded.

The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and any modification and modification made by those skilled in the art according to the above disclosure are all within the scope of the claims.

Claims

1. A square tube welding tool is characterized by comprising a central outer tube (1), an adjustable base (2) and a plurality of guide pillars (3); the central outer pipe (1) and the plurality of guide pillars (3) vertically penetrate through and are connected with the adjustable base (2) in a sliding manner;

the top end of the central outer pipe (1) is fixedly connected with a tensioning inner support (4) which is used for tensioning and fixing the square pipe to be welded from the inside;

an inner supporting core rod (5) penetrates through the inner part of the central outer tube (1), and the inner supporting core rod (5) slides back and forth along the inner wall of the central outer tube (1);

the top end of the inner supporting core rod (5) is provided with an inverted circular truncated cone slider (51), and the inverted circular truncated cone slider (51) slides back and forth along the inner wall of the tensioning inner support (4), so that the tensioning inner support (4) expands outwards or tightens inwards.

2. The square tube welding tool according to claim 1, wherein the central outer tube (1) is slidably connected with the adjustable base (2) through a central bushing.

3. The square tube welding tool according to claim 1, wherein a plurality of guide posts (3) are slidably connected with the adjustable base (2) through guide post bushings.

4. The square tube welding tool according to claim 1, wherein a center hoop (6) is sleeved on the center outer tube (1), and the center hoop (6) is fixedly connected with the center outer tube (1) through a plurality of bolts vertically penetrating through the center hoop (6).

5. The square tube welding tool according to claim 4, wherein the central hoop (6) is in contact with the bottom end of the adjustable base (2).

6. The square tube welding tool according to claim 1, wherein a plurality of guide posts (3) are respectively sleeved with a guide post hoop (7), and the guide post hoop (7) is fixedly connected with the guide posts (3) through a plurality of bolts vertically penetrating through the guide post hoop (7).

7. The square tube welding tool according to claim 6, wherein the guide post hoop (7) is in contact with the bottom end of the adjustable base (2).

8. The square tube welding tool according to claim 1, wherein the tension inner support (4) is composed of a plurality of inner support sheets (41) arranged at intervals and an inner support base (42), the inner wall of each inner support sheet (41) is a conical inclined surface and is in contact with the inverted circular truncated cone sliding block (51), and the outer wall of each inner support sheet is square and is in contact with the inner wall of the square tube to be welded.

9. The square tube welding tool according to claim 1, wherein a cylinder or a hydraulic cylinder is fixedly connected to the bottom end of the inner support rod (5).