CN218874059U

CN218874059U - Multi-functional protection frock of welding plate back

Info

Publication number: CN218874059U
Application number: CN202222852883.1U
Authority: CN
Inventors: 肖秋萍; 陈禹; 何昀; 孙礼泉
Original assignee: Aerosun Corp
Current assignee: Aerosun Corp
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-04-18
Anticipated expiration: 2032-10-28

Abstract

The utility model relates to a multi-functional protection of welding plate back frock belongs to the welding technology field. The tool comprises a base, a left operating plate and a right operating plate which are involutively clamped and fixed with an inlaid strip, wherein an air storage groove on the upper surface of the inlaid strip is covered with an air blowing strip; two sides of one end of the base are respectively fixed with a hinge seat for hinging and supporting the thimble, and the other end of the base is fixed with a supporting block; a positioning pin shaft is arranged above a hinged thimble of the hinge seat; when one end parts of the left and right operation plates are respectively hinged to the corresponding hinged thimble and the other end is supported on the supporting block, the welding edges of the left and right tailor-welded plates are in a horizontal position; when one end of each of the left and right operating plates is hinged to the corresponding hinged ejector pin and is positioned by the positioning pin shaft, the welding edges of the left and right tailor-welded plates are in a vertical position. The utility model discloses both had good adaptability, can realize the multipurpose, overcome prior art again and be difficult to realize comprehensive protection, the big shortcoming of air consumption to the welding operation space has been guaranteed to be spacious.

Description

Multi-functional protection frock of welding plate back

Technical Field

The utility model relates to a welding protection frock, especially a multi-functional protection frock of welding plate back belongs to the welding technology field.

Background

In order to avoid the oxidation of the back surface due to the high temperature of welding when the metal plates are welded, the protection by inert gas is usually needed. For example, in order to verify whether the materials, welding methods, and welding positions are appropriate, the one-side welding after the split is often performed by trial. In the process, the back of the welding seam of the test plate needs to be protected by argon.

To the applicant's knowledge, the prior art has two protection modes, namely direct inflation of the crater part and inflation by using a protective cover. The two conventional protection methods have the following disadvantages respectively: the direct gas-filled area of the welding opening of the former is limited, and the heat conduction area during welding is large, so that the comprehensive protection is difficult to realize; the latter can protect a large range as long as the protective cover is large enough, but the argon gas consumption is extremely large, and the protective cover limits the arrangement position and the welding angle of a welding part, and is generally only suitable for flat welding. In addition, although the prior art also has simple protection tools for assisting welding, the prior art is only suitable for one welding state and has poor adaptability.

Disclosure of Invention

The utility model aims to provide a: aiming at the defects in the prior art, the multifunctional welding plate back protection tool which can realize multi-station welding, has low air consumption and is suitable for a protection area is provided.

In order to achieve the purpose, the utility model discloses multi-functional back of plate protection frock that welds's basic technical scheme does: the welding jig comprises a base, a left operating plate and a right operating plate, wherein the left operating plate and the right operating plate are oppositely closed and used for clamping and fixing an inlaid strip, the upper surface of the inlaid strip is provided with a gas storage groove for introducing inert gas, the gas storage groove is covered with gas blowing strips with spaced gas outlet holes, and the left operating plate and the right operating plate are respectively provided with a pressing plate for aligning the welding edges of a left tailor-welded plate and a right tailor-welded plate to the gas blowing strips;

two sides of one end of the base are respectively fixed with a hinge seat for hinging and supporting the thimble, and the other end of the base is fixed with a supporting block; a positioning pin shaft is arranged above a hinged thimble of the hinge seat;

when one end parts of the left and right operation plates are respectively hinged to the corresponding hinged ejector pins, and the other ends of the left and right operation plates are supported on the supporting blocks, the welding edges of the left and right tailor-welded plates are in a horizontal position; when one end of each of the left and right operation plates is hinged to the corresponding hinged ejector pin and is positioned by the positioning pin shaft, the welding edges of the left and right tailor-welded plates are in a vertical position.

Therefore, when the plate is spliced and welded, the position of the welding edge can be conveniently selected and determined according to the requirement, and the required horizontal welding or vertical welding is realized; and the inert gas entering the gas storage groove from the panel can be uniformly blown to the back of the plate of the tailor-welded weld from the gas outlet of the gas blowing strip, so that the protection effect of avoiding high-temperature oxidation is achieved. Because the strip of blowing extends along the welding seam direction, consequently can protect required welding seam region to the venthole can avoid the air consumption too big, consequently adopts the utility model discloses afterwards, both have good adaptability, can realize the multipurpose, overcome prior art again simultaneously and be difficult to realize comprehensive protection, the big shortcoming of air consumption to it is spacious to have guaranteed the welding operation space.

The utility model discloses further perfect is: the left and right operation plates have the same structure, the middle part of the involutory edge is provided with an upper concave surface and a lower concave surface, the concave depth of the upper concave surface is larger than that of the lower concave surface, and both ends of the involutory edge form flange ends; the left and right operation plates are fixedly connected in an involution manner to form a stepped clamping seam with a narrow upper section and a wide lower section.

The utility model discloses further perfection is again: the ladder clamping seam clamps the inlaid strip with the section shape matched with that of the ladder clamping seam; the lower surfaces of the gibs are supported by bottom cover plates fixedly connected with the lower surfaces of the left and right operating plates; the bottom cover plate is provided with an air inlet which is externally connected with an air source through a hose, and the gib is provided with an air hole which corresponds to the air inlet.

The utility model discloses further perfect is: the section of the panel is in a ladder shape with a narrow top and a wide bottom, and the upper surface of the panel is provided with a gas storage groove communicated with the air holes and filled with argon.

The utility model discloses still further perfect is: the gas storage groove is covered with a copper gas blowing strip with air outlet holes at intervals, and two ends of the copper gas blowing strip are respectively sealed by the flange ends to form a strip-shaped gas storage cavity along the direction of a welding line.

The utility model discloses further perfect again is: the width of the air blowing strip is in transition fit with the width of the upper gap of the stepped clamping seam; the sum of the thickness of the air blowing strip and the height of the narrow step on the inlaid strip is smaller than the height of the upper gap, and a strip-shaped air-homogenizing space is formed between the assembled air blowing strip and the back of the tailor-welded plate.

The utility model discloses still further perfect is: the hinge seat is respectively provided with an elastic insertion type ball head positioning pin and a hinge support thimble from top to bottom, one side of a hinge mounting hole of the left operating plate and one side of a hinge mounting hole of the right operating plate are provided with positioning holes, and the distance between the hinge mounting hole and the positioning holes is matched with the distance between the hinge support thimble and the positioning pin.

Drawings

The present invention will be described in further detail with reference to the following embodiments and accompanying drawings.

Fig. 1 is a schematic perspective view of an embodiment of the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is a schematic top view of the structure of fig. 1.

Fig. 4 is a bottom view of fig. 3.

Fig. 5 is a left side view schematic of the structure of fig. 4.

Fig. 6 is a partial structural view of fig. 1 with the left operating panel removed.

Fig. 7 is a schematic view of the respective structures of fig. 1 with the right operation plate removed.

Fig. 8 is a partial sectional enlarged structural view of fig. 5.

FIG. 9 is a schematic structural diagram of the embodiment of FIG. 1 in a use state after the position is changed.

Detailed Description

Examples

The embodiment is a welding back protection tool actually applied to argon arc welding of a welding test plate, the basic structure of which is shown in fig. 1 to 5, and the tool comprises a square base 5, wherein four corners of the bottom surface of the square base are respectively provided with a backing plate 11, four corners of the upper surface of the square base are respectively provided with a lifting lug, two sides of one end of the base 5 are respectively fixed with a hinge seat 6, and two sides of the other end of the base 5 are respectively fixed with a supporting block 8. The upper part and the lower part of the hinge seat 6 are respectively provided with an elastic insertion type ball head positioning pin shaft 10 and a hinged thimble 9.

The hinged ejector pins 9 of the two hinge seats 6 are respectively used for hinging the hinged holes 1-1 of the left and right operating plates 1' and 1, one side of the hinged hole 1-1 is provided with a positioning hole 1-2, and the distance between the hinged hole 1-1 and the positioning hole 1-2 is matched with the distance between the hinged ejector pin 9 and the positioning pin shaft 10.

The left and right operating plates 1', 1 have the same structure, because the middle part of the involutory edge is provided with an upper concave surface 1-4 and a lower concave surface 1-5, the concave depth of the upper concave surface 1-4 is larger than the concave depth of the lower concave surface 1-5, and the two ends of the involutory edge form flange ends 1-3, the left and right operating plates 1', 1 are involutory and reliably fixed by fasteners at the two ends and lower fixed blocks 3 distributed at intervals on the bottom surface, and then a ladder clamping seam with a narrow cross section and a wide cross section is formed.

As shown in fig. 6 to 8, the stepped clamping slot is used for clamping and fixing the panel 2 with the matched cross-sectional shape in an involutory manner, the panel 2 is positioned in the stepped clamping slot by means of a self positioning pin, and the lower surface of the panel is supported by the bottom cover plate 7 fixedly connected with the lower surfaces of the left and right operating plates 1' and 1, so that the disturbance of air pressure is avoided, and the positioning is very reliable. The bottom cover plate 7 is provided with an air inlet hole H which is externally connected with an air source through a hose, and the gib 2 is provided with an air hole H corresponding to the air inlet hole H.

The section of the panel 2 is also in a ladder shape with a narrow top and a wide bottom, and the upper surface of the panel is provided with a gas storage groove 2-1 communicated with the air hole h so as to introduce argon. The gas storage groove 2-1 is covered with copper gas blowing strips 12 with spaced gas outlets, and after assembly, both ends are respectively sealed by the flange ends 1-3, thus forming a strip-shaped gas storage cavity along the direction of the welding seam. The width of the blowing strip 12 is in transition fit with the width of the upper gap of the stepped clamping seam, the blowing strip is embedded and positioned during assembly, and the sum of the thickness of the blowing strip 12 and the height of the narrow step on the panel 2 is smaller than the height of the upper gap, so that a strip-shaped air-uniform space S (see figure 8) is formed between the assembled blowing strip and the back of the welding test plate, and the protection effect is enhanced.

The left and right operation plates 1', 1 are respectively provided with a pressure plate 4 which can align the welding edges of the left and right tailor-welded test plates G on the blowing bar.

When the welding test plate is used, referring to fig. 1, when one end parts of the left and right operation plates 1' and 1 which are fixedly connected in an involution way are respectively hinged on the corresponding hinged ejector pins 9, and the other end parts are supported on the supporting blocks 8, the welding edges of the left and right tailor-welded test plates G are in horizontal positions, so horizontal welding can be conveniently carried out, argon is taken as protective gas at the moment, enters a gas storage cavity formed by gas storage grooves 2-1 extending along the direction of a welding seam through the gas holes H of the inlaid strips 2 and then enters a gas homogenizing space through the spaced gas blowing holes of the gas blowing strips 12, and protective isolation with proper area size is uniformly formed at the back part of the welding seam of the welded test plates G by small gas consumption.

When the vertical welding is needed, as shown in fig. 9, as long as one end of the left and right operation plates is still respectively hinged to the corresponding hinged thimble 9, the left and right operation plates are lifted from the position of fig. 1, so that the positioning holes 1-2 are respectively positioned by the corresponding positioning pin shafts 10 which are elastically inserted, which is very convenient and fast, and the protection effect of the argon gas is the same as that of the horizontal welding.

Experiments show that the tool provided by the embodiment has the following outstanding beneficial effects:

1) The ventilation design on the bottom cover plate, the panel and the air blowing strip is reasonable, a structure that the air storage cavity is combined with the air homogenizing space is formed, argon can be uniformly distributed to the back of a welding seam of the welding test plate at a constant speed, air is effectively isolated, the welding seam area at the back of the welding test plate is well protected, and the welding quality is improved;

2) The gas storage cavity formed by the gas storage groove on the panel and the adjacent piece can store argon, and the blowing strip directly acts on the back of the full-welded seam of the welding test plate, so that the use efficiency of argon in the welding process is improved, and the waste of argon in the welding process is reduced;

3) The copper air blowing strip covered on the inlaid strip is isolated from the welding test plate, so that the pollution of iron ions to the welding test plate is effectively avoided;

4) The welding rod can be used for horizontal welding and vertical welding, and has multiple purposes;

5) Besides the fixed connection function, the lower fixing block can also prevent the operation plate from interfering with the welding operation platform in size during vertical welding.

In a word, the embodiment not only enables the welding test plate to be reliably in place and facilitates welding operation, but also effectively isolates air by less argon in the welding process, so that the welding seam area at the back of the welding test plate is well protected, and oxidation caused by corrosion of the air to a molten pool is avoided, thereby being beneficial to improving the welding quality performance, avoiding argon waste, realizing multi-station operation and facilitating maintenance.

In addition to the above embodiments, other embodiments of the present invention are also possible. All technical solutions formed by adopting equivalent transformation or equivalent transformation all fall within the protection scope of the present invention.

Claims

1. The utility model provides a multi-functional protection of welding plate back frock, includes base (5) and the left and right operation panel (1', 1) to closing fixed panel (2) of centre gripping, its characterized in that: the upper surface of the panel is provided with a gas storage groove (2-1) for introducing inert gas, the gas storage groove is covered with a gas blowing strip (12) with spaced gas outlet holes, and the left and right operation plates are respectively provided with a pressing plate (4) for aligning the welding edges of the left and right tailor-welded plates to the gas blowing strip;

two sides of one end of the base are respectively fixed with a hinge seat (6) for hinging and supporting a thimble (9), and the other end is fixed with a supporting block (8); a positioning pin shaft (10) is arranged above a hinged thimble of the hinge seat;

when one end parts of the left and right operation plates are respectively hinged to the corresponding hinged thimble and the other end is supported by the supporting block, the welding edges of the left and right tailor-welded plates are in a horizontal position; when one end of each of the left and right operation plates is hinged to the corresponding hinged thimble and positioned by the positioning pin shaft, the welding edges of the left and right tailor-welded plates are in the vertical position.

2. The multifunctional welding plate back protection tool according to claim 1, characterized in that: the left and right operation plates have the same structure, the middle part of the involutory edge is provided with an upper concave surface and a lower concave surface, the concave depth of the upper concave surface is larger than that of the lower concave surface, and both ends of the involutory edge form flange ends; the left and right operation plates are fixedly connected in an involution manner to form a stepped clamping seam with a narrow upper section and a wide lower section.

3. The multifunctional welding plate back protection tool according to claim 2, characterized in that: the ladder clamping seam clamps the inlaid strip with the section shape matched with the ladder clamping seam; the lower surfaces of the gibs are supported by bottom cover plates fixedly connected with the lower surfaces of the left and right operating plates; the bottom cover plate is provided with an air inlet which is externally connected with an air source through a hose, and the gib is provided with an air hole which corresponds to the air inlet.

4. The multifunctional welding plate back protection tool according to claim 3, characterized in that: the section of the panel is in a ladder shape with a narrow top and a wide bottom, and the upper surface of the panel is provided with a gas storage groove communicated with the air holes and filled with argon.

5. The multifunctional welding plate back protection tool according to claim 4, characterized in that: the gas storage groove is covered with a copper gas blowing strip with air outlet holes at intervals, and two ends of the copper gas blowing strip are respectively sealed by the flange ends to form a strip-shaped gas storage cavity along the direction of a welding line.

6. The multifunctional welding plate back protection tool according to claim 5, characterized in that: the width of the air blowing strip is in transition fit with the width of the upper gap of the stepped clamping seam; the sum of the thickness of the air blowing strip and the height of the narrow step on the inlaid strip is smaller than the height of the upper gap, and a strip-shaped air-homogenizing space is formed between the assembled air blowing strip and the back of the tailor-welded plate.

7. The multifunctional welding plate back protection tool according to claim 6, characterized in that: the hinge seat is provided with an elastic insertion type ball head positioning pin and a hinge support thimble from top to bottom respectively, one side of the hinge mounting holes of the left and right operating plates is provided with a positioning hole, and the distance between the hinge mounting hole and the positioning hole is matched with the distance between the hinge support thimble and the positioning pin.