CN219113299U - Heat insulating plate welding tool - Google Patents

Abstract

The utility model discloses a welding fixture for a heat insulation plate. The heat insulating plate welding tool comprises a frame, a clamping assembly and a positioning assembly, wherein the frame is provided with a welding bedplate, the welding bedplate is provided with the clamping assembly, the positioning assembly is fixedly arranged and used for limiting the heat insulating plate and the inner container, and the clamping assembly can enable the heat insulating plate to be abutted against the boss. Compared with the existing mode of manually pre-fixing spot welding and then wire filling welding, the heat insulation plate welding tool is used, the position of the inner container and the heat insulation plate can be adjusted through the positioning assembly, the step of pre-fixing spot welding is omitted, the operation is more convenient, the heat insulation plate and the inner container are clamped through the clamping assembly, the heat insulation plate and the inner container can be tightly attached to form a welding part, the laser penetrating welding process is convenient to use, automatic welding is also convenient to form, and the production efficiency and the product quality are improved. Compared with filler wire welding, laser penetration welding does not need to polish welding wires, so that polishing workload after welding is greatly reduced, and damage to the appearance of a product due to polishing is avoided.

Description

Heat insulating plate welding tool

Technical Field

The utility model relates to the technical field of household kitchen electricity manufacturing, in particular to a welding fixture for a heat insulation plate.

Background

The existing household integrated kitchen steam box and oven are provided with inner containers, and the side surfaces of the inner containers are required to be welded with heat insulation boards.

At present, a manual welding mode is generally adopted for welding the heat insulation plate, specifically, the inner container and the heat insulation plate are assembled at first, are pre-fixed in a spot welding mode, and are welded through a purely manual argon arc filler wire. The welding method has high cost, requires staff to have certain welding skills, and has low production efficiency. And, because the mode of filling wire welding can cause the surface welding wire of inner bag to pile up, make the polishing work load after the welding increase. When polishing for a long time, after the grinding wheel continuously acts on the surface of a workpiece, the surface of the liner is easy to generate heat and deform, the polishing area is large, and the appearance of a product is influenced.

Based on the foregoing, there is a need for a heat insulation board welding tool, which can solve one of the above technical problems.

Disclosure of Invention

The utility model aims to provide a welding tool for a heat insulation plate, which is simple and convenient to operate, improves the production efficiency and improves the surface quality of a product.

To achieve the purpose, the utility model adopts the following technical scheme:

heat insulating board welding frock includes:

a frame having a welding platen;

the clamping assembly comprises a pressing plate and a bottom plate, the bottom plate is fixedly arranged on the welding platen, the pressing plate is movably arranged relative to the bottom plate, and the pressing plate is used for sequentially pressing and fastening the heat insulation plate to be welded and the inner container on the bottom plate; the pressing plate is provided with an avoidance hole, a welding position is formed at the position where the heat insulation plate is abutted against the inner container, and laser energy for welding passes through the avoidance hole to irradiate the welding position;

the positioning assembly is fixedly arranged and used for limiting the heat insulation plate and the inner container.

Optionally, the positioning assembly includes a first positioning member and a second positioning member fixedly disposed on the welding platen, the inner container is provided with a first positioning hole and a second positioning hole, the first positioning member can be located through the first positioning hole in a limiting manner, and the second positioning member can be located through the second positioning hole in a limiting manner.

Optionally, the positioning assembly includes a third positioning member and a fourth positioning member fixedly disposed on the bottom plate, the heat insulating plate is provided with a third positioning hole and a fourth positioning hole, the third positioning member can be located through the third positioning hole in a limiting manner, and the fourth positioning member can be located through the fourth positioning hole in a limiting manner.

Optionally, the pressing plate is connected with at least two pressing blocks, and the pressing blocks are used for sequentially pressing and fastening the heat insulation plate and the liner on the bottom plate.

Optionally, each of the pressing blocks is mounted to the pressing plate through two elastic connectors.

Optionally, the elastic connection piece is a spring pin.

Optionally, the bottom plate is provided with a cooling groove, and the cooling groove is arranged corresponding to the welding position; the bottom plate is also provided with an air inlet hole extending to the cooling groove, and the air inlet hole is used for filling cooling nitrogen into the cooling groove.

Optionally, the heat insulation board welding tool further comprises a linear cylinder and a guide pillar, wherein the linear cylinder is fixedly arranged, one end of the guide pillar is in transmission connection with the output end of the linear cylinder, the other end of the guide pillar is in transmission connection with the pressing plate, and the pressing plate is in sliding arrangement along the direction perpendicular to the bottom plate under the driving of the linear cylinder.

Optionally, the linear cylinder is located below the welding platen, and the guide post is disposed through the welding platen.

Optionally, the heat insulation board welding tool further comprises a connecting plate, wherein the output end of the linear cylinder is arranged at the diagonal center of the connecting plate, and the connecting plate and the pressing plate are concentrically arranged; one end of each of the four guide posts is arranged on the connecting plate, and the four guide posts are arranged in a square shape with the diagonal center as the center.

The heat insulation plate welding tool provided by the utility model has the beneficial effects that: compared with the existing mode of manually pre-fixing spot welds and then welding the filler wires, the heat-insulating plate welding tool is used, the position of the inner container and the heat-insulating plate can be adjusted through the positioning assembly, the step of pre-fixing spot welds is omitted, the operation is more convenient, the heat-insulating plate and the inner container are clamped through the clamping assembly, the heat-insulating plate and the inner container can be tightly attached to form a welding part, the laser penetrating welding process can be used, convenience and quickness are achieved, automatic welding is facilitated, and the production efficiency and the product quality are improved. Compared with filler wire welding, laser penetration welding does not need to polish welding wires, so that polishing workload after welding is greatly reduced, and damage to the appearance of a product due to polishing is avoided.

Drawings

FIG. 1 is an exploded view of a welding location of a liner and a heat shield in accordance with the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a schematic top view of the welding position of the inner container and the heat insulation plate in the utility model;

FIG. 4 is a perspective view of a first view of the heat shield welding tool provided by the utility model;

FIG. 5 is a top view of the heat shield welding tooling provided by the utility model;

FIG. 6 is a front view of the heat shield welding tooling provided by the utility model;

FIG. 7 is a second perspective view of the heat shield welding tool provided by the utility model;

FIG. 8 is a partial enlarged view at B in FIG. 4;

FIG. 9 is an enlarged view of a portion of FIG. 5 at C;

fig. 10 is a partial enlarged view at D in fig. 7.

In the figure:

100. an inner container; 101. a first positioning hole; 102. a second positioning hole; 103. a boss;

200. a heat insulating plate; 201. a third positioning hole; 202. a fourth positioning hole;

1. a frame; 11. welding a bedplate; 12. a linear bearing;

2. a clamping assembly; 21. a bottom plate; 211. a cooling tank; 212. an air inlet hole; 22. a pressing plate; 23. briquetting; 24. an elastic connection member; 25. a straight line cylinder; 26. a connecting plate; 27. a guide post;

31. a first positioning member; 32. a second positioning member; 33. a third positioning member; 34. and a fourth positioning piece.

Detailed Description

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a welding fixture for a heat insulation plate, which is described with reference to fig. 1 to 10. As shown in fig. 1 to 3, in the present embodiment, the liner 100 is a U-shaped plate, the U-shaped plate has a boss 103 with a rounded square shape, and the heat insulation board 200 is provided with a flange, which can cooperate with the boss 103 to facilitate positioning of the two. When the heat shield 200 is placed on the boss 103, the position where the heat shield 200 abuts against the boss 103 can form a welded portion suitable for the laser penetration welding process. Of course, in some other embodiments, the boss 103 or the flange may not be provided, so long as the heat insulation board 200 can abut against the liner 100 to form a welding place suitable for using a laser penetration welding process.

As shown in fig. 4 to 10, the welding fixture for the heat insulation plate comprises a frame 1, a clamping assembly 2 and a positioning assembly, wherein the frame 1 is provided with a welding bedplate 11, and two welding stations are arranged on the welding bedplate 11. Each welding station is provided with a clamping assembly 2 and a positioning assembly, wherein the positioning assembly is used for limiting the heat insulation plate 200 and the liner 100, and the clamping assembly 2 can enable the heat insulation plate 200 to be abutted against the boss 103.

Specifically, taking any one of the welding stations as an example, referring to fig. 5 and 6, the clamping assembly 2 includes a pressing plate 22 and a bottom plate 21, the bottom plate 21 is fixedly mounted on the welding platen 11, and the pressing plate 22 is slidably disposed in a direction perpendicular to the bottom plate 21. The pressing plate 22 is used for sequentially pressing and fixing the heat insulation plate 200 to be welded and the liner 100 on the bottom plate 21; the pressing plate 22 is provided with a relief hole, and a welding position is formed at a position where the heat insulating plate 200 is abutted against the liner 100, and laser energy for welding passes through the relief hole and irradiates the welding position.

In use, the platen 22 is illustratively slid in a direction away from the base plate 21 and then the liner 100 and the heat shield 200 are placed between the platen 22 and the base plate 21 in a direction parallel to the base plate 21, with the position of both being adjusted by the positioning assembly. After the positioning of the inner container 100 and the heat insulating plate 200 is completed, the pressing plate 22 slides along the direction close to the bottom plate 21, so that the pressing plate 22 sequentially presses and fixes the heat insulating plate 200 and the inner container 100 on the bottom plate 21, a welding position can be formed at the position where the heat insulating plate 200 is abutted against the boss 103 on the inner container 100, the heat insulating plate 200 and the inner container 100 can be firmly fixed and tightly attached, and at the moment, laser passes through the avoidance holes to irradiate the welding position, so that the heat insulating plate 200 and the inner container can be welded and connected in a laser penetration welding mode. After welding, the pressing plate 22 is slid along the direction away from the bottom plate 21, and the welded product can be taken out.

Compared with the existing mode of manually pre-fixing spot welds and then welding the filler wires, the heat-insulating plate welding fixture is used, the position of the inner container 100 and the heat-insulating plate 200 can be adjusted through the positioning assembly, the step of pre-fixing spot welds is omitted, the operation is more convenient, the heat-insulating plate 200 and the inner container 100 can be clamped through the clamping assembly 2, the two can be tightly attached to form welding positions, the laser penetrating welding process can be used, the heat-insulating plate welding fixture is convenient and rapid, automatic welding is convenient to form, and the production efficiency and the product quality are improved. Compared with filler wire welding, laser penetration welding does not need to polish welding wires, so that polishing workload after welding is greatly reduced, and damage to the appearance of a product due to polishing is avoided.

Of course, in some other embodiments, compared to the sliding manner in the present embodiment, a rotating manner may be adopted, so that the connection relationship between the pressing plate 22 and the bottom plate 21 can be opened and closed, so that the heat insulation plate 200 and the liner 100 can be placed between the pressing plate 22 and the bottom plate 21 and can be clamped and fixed by the pressing plate 22 and the bottom plate 21.

Optionally, in this embodiment, as shown in fig. 6, the heat insulation board welding tool further includes a linear cylinder 25 and a guide pillar 27, where the linear cylinder 25 is fixedly disposed, one end of the guide pillar 27 is in transmission connection with the output end of the linear cylinder 25, and the other end of the guide pillar 27 is in transmission connection with the pressing plate 22. Under the drive of the linear cylinder 25, the pressing plate 22 is slidably arranged along the direction perpendicular to the bottom plate 21, clamps the heat insulation plate 200 and the liner 100, and can be rapidly switched between an open state and a clamped state, so that the welding difficulty is reduced.

Alternatively, in some other embodiments, a stud and nut connection may be adopted, so that the pressing plate 22 slides along the stud, and the pressing plate 22 is driven to sequentially press and fix the heat insulation plate 200 and the liner 100 to the bottom plate 21 by means of the nut abutting against the pressing plate 22. Compared with the linear cylinder 25, the stud and the nut are not easy to realize automatic welding, have higher operation difficulty and low cost, and therefore, the utility model is also in the scope of protection.

Preferably, in the present embodiment, the linear cylinder 25 is located below the welding platen 11, the welding platen 11 is provided with a linear bearing 12 therein, and the guide post 27 is disposed through the linear bearing 12 and connected to the pressing plate 22. The linear air cylinder 25 is arranged below the welding bedplate 11, so that the internal space of the frame 1 can be reasonably utilized, the structure above the welding bedplate 11 is simplified, and the welding bedplate is convenient to maintain and carry.

Further, in this embodiment, the heat insulation board welding fixture further includes a connection plate 26, the output end of the linear cylinder 25 is installed at the diagonal center of the connection plate 26, and the connection plate 26 and the pressing plate 22 are concentrically arranged. One end of the four guide posts 27 is mounted on the connecting plate 26, and the four guide posts 27 are arranged in a square shape with the diagonal center as the center. Through the special layout of the connecting plates 26 and the four guide posts 27, when the pressing plate 22 is pressed on the heat insulation plate 200, all the abutting positions of the heat insulation plate 200 and the pressing plate 22 are stressed consistently, so that the situation that the stress of one part of the abutting positions is smaller and the stress of the other part of the abutting positions is larger, and gaps are formed between the heat insulation plate 200 and the boss 103 of the liner 100 is avoided. When the gap is positioned at the welding position, a welding breakage phenomenon is caused, and bad products appear.

Specifically, as shown in fig. 7 and 10, in the present embodiment, the positioning assembly includes a first positioning member 31 and a second positioning member 32. The first positioning member 31 and the second positioning member 32 are fixedly disposed on the welding platen 11, and the liner 100 is provided with a first positioning hole 101 and a second positioning hole 102. When the liner 100 is placed between the pressing plate 22 and the bottom plate 21, the first positioning piece 31 can be arranged through the first positioning hole 101 in a limiting manner, and the second positioning piece 32 can be arranged through the second positioning hole 102 in a limiting manner, so that the liner 100 is limited and positioned.

With continued reference to fig. 10, the positioning assembly further includes a third positioning member 33 and a fourth positioning member 34. The third positioning piece 33 and the fourth positioning piece 34 are fixedly arranged on the bottom plate 21, and the heat insulation plate 200 is correspondingly provided with a third positioning hole 201 and a fourth positioning hole 202. When the heat insulation board 200 is placed between the pressing plate 22 and the bottom plate 21, the third positioning piece 33 can be arranged through the third positioning hole 201 in a limiting manner, and the fourth positioning piece 34 can be arranged through the fourth positioning hole 202 in a limiting manner, so that the heat insulation board 200 is limited and positioned.

Preferably, the first, second, third and fourth positioning members 31, 32, 33 and 34 described above use positioning pins or positioning columns. Of course, in some other embodiments, for some specific models of the liner 100 and the heat insulation board 200, the positions of the liner 100 and the heat insulation board 200 during welding can be adjusted and limited by limiting the outline of the liner 100 and the heat insulation board 200, so the specific structure of the positioning assembly is not limited in the utility model, and the positioning requirement during welding can be met.

Alternatively, as shown in fig. 8 and 9, in the present embodiment, the pressing plate 22 is provided with a plurality of mounting holes, each of which has one elastic connection member 24 mounted therein. The movable end of the elastic connecting piece 24 is provided with the pressing blocks 23, the pressing blocks 23 are used for sequentially pressing and fixing the heat insulation plate 200 and the liner 100 on the bottom plate 21, and when the pressing blocks 23 are used for pressing and fastening, the elastic connecting piece 24 can enable all the abutting positions of the heat insulation plate 200 and the pressing plate 22 to be stressed consistently, and the welding phenomenon can be prevented. Preferably, in the present embodiment, the elastic connection member 24 is a spring pin, and each pressing block 23 is mounted on the pressing plate 22 through two spring pins, so that a gap or a slit can be further prevented from occurring at the abutting position below the single pressing block 23, which results in a welding breakage phenomenon.

Referring to fig. 5 and 9, the bottom plate 21 is provided with a cooling groove 211, and the cooling groove 211 is provided corresponding to a welded portion, and low-temperature nitrogen gas flows into the cooling groove 211 during welding, so that the temperature of the liner 100 can be reduced and deformation can be prevented. For example, in this embodiment, the welding portion is square annular, the cooling groove 211 is provided as a corresponding square annular groove, the bottom of the square annular groove is further provided with the air inlet holes 212, and the plurality of air inlet holes 212 are arranged along the shape extension of the square annular groove, so that the temperature in the square annular groove is basically consistent, and local overheat deformation during welding is prevented.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. Heat insulating board welding frock, its characterized in that includes:

a frame (1), the frame (1) having a welding platen (11);

the clamping assembly (2), the clamping assembly (2) comprises a pressing plate (22) and a bottom plate (21), the bottom plate (21) is fixedly arranged on the welding platen (11), the pressing plate (22) is movably arranged relative to the bottom plate (21), and the pressing plate (22) is used for sequentially pressing and fastening a heat insulation plate (200) to be welded and the liner (100) on the bottom plate (21); the pressing plate (22) is provided with an avoidance hole, a welding position is formed at the position where the heat insulation plate (200) is abutted against the inner container (100), and laser energy for welding passes through the avoidance hole and irradiates the welding position;

the positioning assembly is fixedly arranged and used for limiting the heat insulation plate (200) and the inner container (100).

2. The heat insulation plate welding tool according to claim 1, wherein the positioning assembly comprises a first positioning piece (31) and a second positioning piece (32) which are fixedly arranged on the welding platen (11), the inner container (100) is provided with a first positioning hole (101) and a second positioning hole (102), the first positioning piece (31) can be arranged in a limiting penetrating mode in the first positioning hole (101), and the second positioning piece (32) can be arranged in a limiting penetrating mode in the second positioning hole (102).

3. The heat insulation plate welding tool according to claim 1, wherein the positioning assembly comprises a third positioning piece (33) and a fourth positioning piece (34) which are fixedly arranged on the bottom plate (21), the heat insulation plate (200) is provided with a third positioning hole (201) and a fourth positioning hole (202), the third positioning piece (33) can be arranged in a limiting penetrating mode in the third positioning hole (201), and the fourth positioning piece (34) can be arranged in a limiting penetrating mode in the fourth positioning hole (202).

4. The heat insulation plate welding fixture according to claim 1, wherein the pressing plate (22) is connected with at least two pressing blocks (23), and the pressing blocks (23) are used for sequentially pressing and fastening the heat insulation plate (200) and the inner container (100) to the bottom plate (21).

5. The welding fixture for heat insulation plates according to claim 4, wherein each press block (23) is mounted to the press plate (22) by two elastic connection members (24).

6. The heat shield welding fixture of claim 5, wherein the resilient connector (24) is a spring pin.

7. The heat insulation plate welding fixture according to claim 1, wherein the bottom plate (21) is provided with a cooling groove (211), and the cooling groove (211) is arranged corresponding to the welding position; the bottom plate (21) is further provided with an air inlet hole (212) extending to the cooling groove (211), and the air inlet hole (212) is used for filling cooling nitrogen into the cooling groove (211).

8. The heat insulation plate welding tool according to any one of claims 1-7, further comprising a linear cylinder (25) and a guide post (27), wherein the linear cylinder (25) is fixedly arranged, one end of the guide post (27) is in transmission connection with an output end of the linear cylinder (25), the other end of the guide post (27) is in transmission connection with the pressing plate (22), and the pressing plate (22) is in sliding arrangement along a direction perpendicular to the bottom plate (21) under the driving of the linear cylinder (25).

9. The heat insulation plate welding fixture according to claim 8, wherein the linear cylinder (25) is located below the welding platen (11), and the guide post (27) is disposed through the welding platen (11).

10. The heat insulation plate welding fixture according to claim 9, further comprising a connection plate (26), wherein an output end of the linear cylinder (25) is installed at a diagonal center of the connection plate (26), and the connection plate (26) is concentrically arranged with the pressing plate (22); one end of each guide post (27) is mounted on the connecting plate (26), and the four guide posts (27) are arranged in a square shape with the diagonal center as the center.

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