Welding device for large-length-diameter-ratio product with sealing foil

Abstract

The utility model discloses a welding device for a large-length-diameter-ratio product with a sealing foil. The welding device comprises a clamping mechanism and a cooling mechanism. A rotary driving source is arranged at the lower end of the clamping mechanism, the output end of the rotary driving source is in driving connection with the fixed end of the clamping mechanism, and the fixed end of the rotary driving source is detachably and fixedly connected with the table top of the working machine table. The cooling mechanism comprises a cooling pipe, a cooling source and a supporting assembly. The cooling pipe is in a barrel shape, the top end of the cooling pipe is in a closed state, the lower end of the cooling pipe is in an open state, cooling holes are formed in the peripheral wall of the cooling pipe and penetrate through the cooling pipe, and the cooling holes and the pipe wall of the cooling pipe are arranged at an angle of 45 degrees. And the horizontal plane of the exhaust port of the cooling hole is lower than the air inlet of the cooling pipe. The technical problem that in the technical field of welding, heat generated by welding of an assembly with the large length-diameter ratio easily causes sealing failure of the assembly is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding technical field, concretely relates to a big long diameter ratio takes sealed foil product welding device. BACKGROUND

[0002] In the prior art, the first part is a barrel-shaped body, the cross-sectional diameter of the lower half of the first part is smaller than that of the upper half, the second part is a tube, the inner diameter of the second part is smaller than the cross-sectional diameter of the lower half of the first part, the lower half of the first part is provided with a through hole, and the lower half of the first part is inserted into the second part. The first part and the second part are usually assembled in an interference fit to achieve a tight connection. This method requires extremely precise size matching of the two parts to ensure that the contact surface can withstand a certain pressure without leaking. The first part and the second part after assembly have the characteristics of large length-diameter ratio. In order to further enhance the sealing effect, a layer of high-performance sealing foil is usually attached to the surface of the first part. The sealing foil is fixed on the first part by a special adhesive and bears the main sealing function of the product. Its design can withstand high temperatures of up to 150℃ without failure.

[0003] However, in actual application, the joint between the first part and the second part needs to be welded, and a large amount of heat generated during the welding process not only accumulates inside the second part, but also directly affects the sealing foil, which may cause the local temperature to rise rapidly. In addition, the large length-diameter ratio of the first part and the second part makes it difficult for heat to dissipate quickly, easily forming a heat accumulation area, thereby increasing the risk of sealing foil failure due to heat, affecting the sealing performance and overall reliability of the product. SUMMARY

[0004] The utility model aims at overcoming the above technical defects, providing a big long diameter ratio takes sealed foil product welding device, solve the technical problem that the heat generated by the welding of the assembly with large length-diameter ratio in the welding technical field easily leads to the sealing failure of the assembly.

[0005] To achieve the above technical purpose, the technical scheme of the utility model provides a big long diameter ratio takes sealed foil product welding device, comprising:

[0006] The utility model provides a clamping mechanism and cooling mechanism, the lower end of clamping mechanism is provided with rotary drive source, the output end of rotary drive source is drivenly connected with the fixed end of clamping mechanism, the fixed end of rotary drive source is detachably fixedly connected with the mesa of work machine, and the cooling mechanism includes cooling pipe, cooling source and support component, the cooling pipe is barrel -shaped, the top of cooling pipe is closed state, the lower end of cooling pipe is open state, the circumferential wall of cooling pipe is provided with cooling hole, cooling hole penetrates cooling pipe, cooling hole is arranged 45 degree angle with the pipe wall of cooling pipe, and the horizontal plane of exhaust port of cooling hole is lower than the air inlet of cooling pipe.

[0007] Compared with the prior art, the utility model has the beneficial effects that:

[0008] High welding quality and high product qualification rate: the welding device for large length-diameter ratio sealing foil product of the utility model utilizes the cooling mechanism to rapidly cool down when welding the large length-diameter ratio sealing foil product, the high temperature generated during welding is rapidly discharged from the inner cavity of the second part through the gas discharged through the cooling hole, so that the sealing foil is not damaged due to high temperature, and the sealing failure of the first part and the second part is avoided, thereby greatly improving the qualification rate of the series products. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the working state schematic view of the welding device for large length-diameter ratio sealing foil product provided by the utility model;

[0010] Figure 2 It is the three-dimensional structure schematic view of the welding device for large length-diameter ratio sealing foil product provided by the utility model;

[0011] Figure 3 It is the position arrangement schematic view of the working state of part A, part B and the cooling pipe provided by the utility model;

[0012] Figure 4 It is the explosion structure schematic view of the part A and part B assembly provided by the utility model;

[0013] Figure 5 It is the cross-sectional structure schematic view of the cooling pipe provided by the utility model;

[0014] Figure 6 It is the three-dimensional structure schematic view of the part A and part B assembly provided by the utility model. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0016] It should be noted that when an element is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where, when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can also be present. As used herein the terms "vertical", "horizontal", "left", "right" and similar terms are used for explanation only and are not intended to limit the scope of the present application.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0018] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , wherein Figure 3 and Figure 5 the arrows represent the direction of gas flow.

[0019] The embodiment provides a large aspect ratio product welding device with sealing foil, comprising: a clamping mechanism 1, a cooling mechanism 2 and a working machine table 3.

[0020] In the embodiment, the following needs to be explained: since the first part 5 is a hollow structure, the upper and lower halves are provided with through holes, in order to ensure the sealing property of the assembly of the first part 5 and the second part 6, the sealing foil 7 needs to be pasted at the contact position of the first part 5 and the second part 6, and the sealing foil 7 is selected from aluminum foil.

[0021] Further, the large aspect ratio product welding device with sealing foil provided by the embodiment is used for welding the first part 5 and the second part 6, the first part 5 and the second part 6 are metal pieces, the first part 5 is a barrel-shaped body, the cross-sectional diameter of the lower half of the first part 5 is smaller than that of the upper half, the second part 6 is a pipe, the inner diameter of the second part 6 is smaller than the cross-sectional diameter of the lower half of the first part 5, the lower half of the first part 5 is provided with a through hole, the outer peripheral wall of the lower half of the first part 5 is pasted with the sealing foil 7, the lower half of the first part 5 is inserted into the second part 6, and the first part 5 and the second part 6 are assembled in interference fit.

[0022] Further, the clamping mechanism 1 comprises a chuck 11, a chuck jaw 12, and a clamping drive source. The output end of the clamping drive source is in driving connection with the chuck 11, the bottom end of the chuck jaw 12 is fixedly connected with the chuck 11, and the three chucks 11 and chuck jaws 12 are arranged in a circumferential array.

[0023] Further, the clamping mechanism 1 adopts a pneumatic driving three-jaw chuck, and the three chucks 11, chuck jaws 12, and clamping drive sources are arranged in a circumferential array with a spacing of 120° between adjacent ones.

[0024] Further, when clamping the first part 5 and the second part 6 assembly, the output ends of the three clamping drive sources are simultaneously elongated, thereby driving the chucks 11 and chuck jaws 12 to move towards the first part 5 and the second part 6 assembly, so as to clamp the first part 5 and the second part 6 assembly, wherein the lower end of the chuck 11 is further provided with a slider guide rail assembly for guiding the linear motion of the chuck 11 and the chuck jaw 12, ensuring that they open and close stably and synchronously.

[0025] Further, in the present embodiment, the clamping drive source is selected as a pneumatic drive source, which has the following advantages in the present embodiment: 1. Rapid clamping improves work efficiency: the pneumatic drive source can quickly respond to operation instructions, and only needs to press a button to realize instantaneous automatic centering and clamping of the workpiece. This improves work efficiency and reduces labor costs; 2. Large clamping force and wide range: the pneumatic drive source provides a powerful clamping force, which is suitable for workpieces of various sizes and shapes, and can exert sufficient clamping force on larger diameter workpieces while maintaining high precision, ensuring stability during machining; 3. High clamping precision: the pneumatic drive source adopts a fully enclosed structure, uses high-quality materials and precise manufacturing processes, effectively prevents dust and other impurities from entering, and ensures precision and reliability during long-term operation. The circumferential and radial runout of the first part 5 and the second part 6 assembly after clamping is within a very small range, usually within 0.15 mm.

[0026] Further, the lower end of the clamping mechanism 1 is provided with a rotary drive source 4, the output end of the rotary drive source 4 is in driving connection with the fixed end of the clamping mechanism 1, and the fixed end of the rotary drive source 4 is detachably fixedly connected with the table surface of the working machine 3.

[0027] Further, when the clamping mechanism 1 clamps the first part 5 and the second part 6 assembly for welding work, the first part 5 and the second part 6 assembly need to be rotated, and the rotary drive source 4 works to drive the clamping mechanism 1 to rotate relative to the working machine 3.

[0028] Further, preferably, the rotary drive source 4 is selected as a pneumatic drive source.

[0029] Further, the cooling mechanism 2 comprises a cooling pipe 21, a cooling source 22 and a supporting assembly 23 for supporting, positioning and fixing the cooling pipe 21.

[0030] Further, the cooling pipe 21 is in a barrel shape, and the top end of the cooling pipe 21 is closed to avoid gas blowing to the joint position of the sealing foil 7 and the first part 5 under high temperature environment, directly blowing the two away.

[0031] The lower end of the cooling pipe 21 is open, and the peripheral wall of the cooling pipe 21 is provided with a cooling hole 21a penetrating the cooling pipe 21, the cooling hole 21a is arranged at an angle of 45° with the pipe wall of the cooling pipe 21, and the horizontal plane of the exhaust port of the cooling hole 21a is lower than the air inlet of the cooling pipe 21.

[0032] Further, when the first part 5 and the second part 6 assembly are welded, the lower end of the cooling pipe is connected to the output end of the cooling source 22 for gas flow, and since the top end of the cooling pipe 21 is closed, the upper part of which is provided with the cooling hole 21a, the gas in the cooling pipe 21 flows out through the cooling hole 21a.

[0033] Further, since the cooling hole 21a is arranged at an angle of 45° with the pipe wall of the cooling pipe 21, and the horizontal plane of the exhaust port 21b of the cooling hole 21a is lower than the air inlet 21c of the cooling pipe 21, the gas discharged through the cooling hole 21a is discharged downward at an angle of 45° with the horizontal plane.

[0034] Further, since the cooling pipe 21 is placed in the inner cavity of the second part 6 when the first part 5 and the second part 6 assembly are welded, the heat generated when the first part 5 and the second part 6 are connected and welded is quickly discharged from the inner cavity of the second part 6 through the gas discharged through the cooling hole 21a, so as to avoid high temperature and damage the sealing foil 7, resulting in sealing failure of the first part 5 and the second part 6.

[0035] Further, the supporting assembly 23 comprises a first connecting piece 231, a second connecting piece 232 and a supporting plate 233, one end of the first connecting piece 231 is fixedly connected with one end of the second connecting piece 232 at an obtuse angle, the other end of the first connecting piece 231 is detachably fixedly connected with one side of the fixed end of the clamping mechanism 1, and the other end of the second connecting piece 232 is fixedly connected with one side of the supporting plate 233.

[0036] Further, the first connecting piece 231 is welded and fixed with the fixed end of the clamping mechanism 1, when the clamping mechanism 1 rotates, the support assembly 23 is static relative to the clamping mechanism 1, preventing motion interference.

[0037] Further, the support plate 233 is provided with a cooling pipe mounting hole 233a and a cooling pipe exhaust hole 233b, the cooling pipe mounting hole 233a penetrates the support plate 233 from top to bottom and is arranged at the center of the support plate 233, the diameter of the cooling pipe mounting hole 233a is equal to the outer diameter of the cooling pipe 21, and the cooling pipe exhaust hole 233b penetrates the support plate 233.

[0038] Further, the cooling pipe mounting hole 233a arranged on the support plate 233 is used for limiting the cooling pipe 21, preventing the cooling pipe 21 from moving in the horizontal plane.

[0039] Further, the cooling pipe exhaust hole 233b is used for exhausting the gas flowing from top to bottom in the inner cavity of the second part 6, preventing the inner cavity of the second part 6 from being blocked by gas and preventing heat from being exhausted.

[0040] Further, the cooling pipe 21 is arranged in the cooling pipe mounting hole 233a, the lower end of the cooling pipe 21 is communicated with an air pipe, and the clamping mechanism 1 is provided with an air pipe mounting hole penetrating from top to bottom at the center, the air pipe passes through the air pipe mounting hole and is communicated with the output end of the cooling source 22 arranged at the lower end of the workbench 3, and is used for supplying air to the cooling pipe 21.

[0041] Further, the cross-sectional area of the support plate 233 is greater than the cross-sectional area of the second part 6, which is used for limiting the assembly of the first part 5 and the second part 6 in the vertical direction. When welded, the upper end surface of the cooling pipe 21 is close to the lower end surface of the first part 5, which facilitates the maximum flow of gas to achieve the optimal cooling effect.

[0042] Further, in this embodiment, the temperature of the sealing foil 7 can be ensured by the hole diameter and number of the cooling hole 21a and the pressure and cooling time provided by the cooling source 22, so as to achieve the optimal cooling effect by corresponding combination.

[0043] Working principle: the utility model provides a long ratio of diameter with sealed foil product welding device including clamping mechanism 1, cooling mechanism 2 and workbench 3. The lower end of clamping mechanism 1 is provided with rotary drive source 4, the output end of rotary drive source 4 is drivenly connected with the fixed end of clamping mechanism 1, and the fixed end of rotary drive source 4 is detachably fixedly connected with the table top of workbench 3. When clamping mechanism 1 clamps the assembly of first part 5 and second part 6 to carry out welding work, the assembly of first part 5 and second part 6 needs to be rotated, rotary drive source 4 works to drive clamping mechanism 1 to rotate relative to workbench 3. Cooling mechanism 2 includes cooling pipe 21, cooling source 22 and support assembly 23, and support assembly 23 is used to support, position and fix cooling pipe 21. The lower end of cooling pipe 21 is in open state, cooling holes 21a are formed in the peripheral wall of cooling pipe 21, cooling holes 21a penetrate cooling pipe 21, cooling holes 21a are arranged at 45 ° with the pipe wall of cooling pipe 21, and the horizontal plane of the exhaust port of cooling holes 21a is lower than the air inlet of cooling pipe 21.

[0044] Specifically, when welding the assembly of first part 5 and second part 6, the assembly of first part 5 and second part 6 is placed on support plate 23, cooling pipe 21 is inserted into second part 6, clamping mechanism 1 works to clamp and center the assembly of first part 5 and second part 6, and when clamping mechanism 1 is driven to rotate by rotary drive source 4, cooling source 22 works simultaneously to provide gas into cooling pipe 21. At this time, welding torch 8 moves to the connection of first part 5 and second part 6 to carry out welding, and the high temperature generated by welding is rapidly discharged from the inner cavity of second part 6 through the gas discharged through cooling holes 21a, so as to prevent the temperature from being too high to damage sealed foil 7 and cause the sealing failure of first part 5 and second part 6.

[0045] The specific embodiment of the utility model described above does not constitute a limitation on the protection scope of the utility model. Any various other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A welding device for products with a large aspect ratio and sealing foil, used for welding a first part and a second part, characterized in that, include: The system includes a clamping mechanism and a cooling mechanism. The lower end of the clamping mechanism is equipped with a rotary drive source. The output end of the rotary drive source is driven and connected to the fixed end of the clamping mechanism. The fixed end of the rotary drive source is detachably and fixedly connected to the table surface of the machine tool. The cooling mechanism includes a cooling pipe, a cooling source, and a support assembly. The cooling pipe is barrel-shaped. The top end of the cooling pipe is closed. The lower end of the cooling pipe is open. Cooling holes are formed on the peripheral wall of the cooling pipe. The cooling holes penetrate the cooling pipe. The cooling holes are arranged at a 45° angle to the wall of the cooling pipe. The horizontal plane of the exhaust port of the cooling holes is lower than the air inlet of the cooling pipe.

2. The welding device for products with sealing foil and large aspect ratio according to claim 1, characterized in that, The support assembly includes a first connector, a second connector, and a support plate; one end of the first connector and one end of the second connector are welded together at an obtuse angle for a fixed connection; the other end of the first connector is detachably fixed to one side of the fixed end of the clamping mechanism; and the other end of the second connector is welded to one side of the support plate for a fixed connection.

3. The welding device for products with sealing foil and large aspect ratio according to claim 2, characterized in that, The support plate has a cooling pipe mounting hole and a cooling pipe vent hole; the cooling pipe mounting hole extends vertically through the support plate and is located at the center of the support plate; the diameter of the cooling pipe mounting hole is equal to the outer diameter of the cooling pipe; the cooling pipe vent hole extends through the support plate.

4. The welding device for products with sealing foil and large aspect ratio according to claim 3, characterized in that, The cooling pipe is placed in the cooling pipe mounting hole; the lower end of the cooling pipe is connected to an air pipe; the clamping mechanism has an air pipe mounting hole that runs vertically through the center; the air pipe passes through the air pipe mounting hole and connects to the output end of the cooling source located at the lower end of the workbench.

5. The welding device for products with sealing foil and large aspect ratio according to claim 4, characterized in that, The cross-sectional area of ​​the support plate is larger than that of the second part; in the welding state, the upper end face of the cooling pipe is infinitely close to the lower end face of the first part.

6. The welding apparatus for products with sealing foil and large aspect ratio according to claim 5, characterized in that, The first part is a barrel-shaped body; the cross-sectional diameter of the lower half of the first part is smaller than the cross-sectional diameter of the upper half; the second part is tubular; the inner diameter of the second part is smaller than the cross-sectional diameter of the lower half of the first part; the lower half of the first part has a through hole; a sealing foil is pasted on the outer peripheral wall of the lower half of the first part; the lower half of the first part is inserted into the second part; the first part and the second part are assembled with an interference fit.

7. The welding apparatus for products with sealing foil and large aspect ratio according to claim 6, characterized in that, The clamping mechanism includes a chuck, jaws, and a clamping drive source; the output end of the clamping drive source is connected to the chuck; the bottom end of the jaws is fixedly connected to the chuck; and three chucks and jaws are arranged in a circumferential array.

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