Annular welding device

Abstract

The utility model discloses an annular welding device, which relates to the technical field of semiconductor crystal round tube processing and preparation, and comprises a welding gun device and an ignition device, the welding gun device comprises a welding gun main body and a welding gun gas supply assembly; a welding gun main body and a plurality of welding nozzles; the welding gun main body is annular; the multiple welding nozzles are circumferentially distributed on the inner ring wall of the welding gun body around the central axis of the welding gun body (11), and a welding area is defined by the multiple welding nozzles. The welding gun gas supply assembly is used for supplying combustible gas to each welding nozzle; the ignition device is arranged on one side of the welding gun body and used for igniting the welding nozzle. Combustible gas is supplied to the welding nozzles through the welding gun gas supply assembly, and the combustible gas from the welding nozzles is ignited through the ignition device, so that the to-be-welded area of the crystal round tube in the welding area can be uniformly heated, the consistency of the welding quality of products is ensured, and meanwhile, the productivity is favorably improved.

Description

Technical Field

[0001] The present application relates to the technical field of semiconductor crystal round tube processing and preparation, and in particular to a ring welding device. Background Art

[0002] In the production process of crystal round tubes, welding is an indispensable process. The two ends of the crystal round tube are welded at high temperature to achieve a sealing effect.

[0003] However, the current method is to place the crystal tube on a workbench and fix it, and then manually weld it with a handheld welding torch. This operation is prone to cause cracks, dents, surfacing, air leakage and burn-through, which seriously restricts the improvement of production capacity and the consistency of product quality.

[0004] Therefore, it is necessary to design a new solution to solve the above problems. Utility Model Content

[0005] In view of this, the purpose of the present application is to provide a ring welding device to solve the technical problem that the existing manual handheld welding gun method for welding processing seriously restricts the improvement of production capacity and the consistency of product quality.

[0006] In order to achieve the above technical purpose, the present application provides an annular welding device, including a welding gun device and an ignition device;

[0007] The welding gun device comprises a welding gun body and a welding gun gas supply assembly;

[0008] The welding gun body and a plurality of welding nozzles;

[0009] The welding gun body is annular;

[0010] A plurality of welding nozzles are circumferentially distributed on the inner ring wall of the welding gun body around the central axis of the welding gun body, and a welding area is formed between them;

[0011] The welding gun gas supply assembly is used to supply combustible gas to each welding nozzle;

[0012] The ignition device is arranged on one side of the welding gun body and is used to ignite the welding nozzle.

[0013] Furthermore, the inner ring of the welding gun body is provided with an air guide cavity;

[0014] Each of the welding nozzles is communicated with the air guide cavity;

[0015] The welding gun gas supply assembly is communicated with the gas guide cavity.

[0016] Further, the welding gun gas supply assembly includes a first mixed gas delivery pipe, a first hydrogen delivery pipe and a first oxygen delivery pipe;

[0017] One end of the first mixing pipe is connected to the welding gun body and communicated with the gas guide cavity;

[0018] One end of the first hydrogen delivery pipe and one end of the first oxygen delivery pipe are respectively connected to the other end of the first mixed delivery pipe;

[0019] The first hydrogen delivery pipe is provided with a first hydrogen control valve;

[0020] The first oxygen delivery pipe is provided with a first oxygen control valve.

[0021] Furthermore, the first mixed delivery pipe is provided with a first mixed delivery check valve.

[0022] Furthermore, the welding gun device also includes a cooling assembly;

[0023] The cooling assembly is connected to the welding gun body and is used for cooling the welding gun body.

[0024] Furthermore, a cooling chamber is provided in the welding gun body;

[0025] The cooling assembly includes a cooling water inlet pipe and a cooling water return pipe;

[0026] The welding gun body is provided with a water inlet and a water return port connected to the cooling chamber;

[0027] One end of the cooling water inlet pipe is connected to the water inlet, and a first cooling water control valve is provided on the cooling water inlet pipe;

[0028] One end of the cooling water return pipe is connected to the return port and is provided with a second cooling water control valve.

[0029] Furthermore, the ignition device includes an igniter and an ignition gas supply assembly;

[0030] The ignition gas supply assembly includes a second mixing pipe, a second hydrogen delivery pipe and a second oxygen delivery pipe;

[0031] The second mixing pipe is arranged on one side of the welding gun body, and one end of the second mixing pipe is arranged toward one of the welding nozzles;

[0032] The igniter is installed on the second mixing pipe and is used to ignite the combustible gas output by the second mixing pipe to ignite the welding nozzle;

[0033] The second mixed delivery pipe is provided with a second mixed delivery check valve;

[0034] One end of the second hydrogen delivery pipe and one end of the second oxygen delivery pipe are respectively connected to the other end of the second mixed delivery pipe;

[0035] The second hydrogen delivery pipe is provided with a second hydrogen control valve;

[0036] The second oxygen delivery pipe is provided with a second oxygen control valve.

[0037] Further, it also includes a mobile device;

[0038] The moving device is connected to the welding gun device and the ignition device, and is used to drive the welding gun device and the ignition device to move together.

[0039] Further, the moving device includes a first linear displacement device and a second linear displacement device;

[0040] The first linear displacement device is connected to the second linear displacement device and is used to drive the second linear displacement device to move along a horizontal straight line;

[0041] The second linear displacement device is connected to the welding device and the ignition device, and is used to drive the welding device and the ignition device to move along a vertical linear motion.

[0042] Further, it also includes a control device;

[0043] The control device is in communication connection with the welding gun device and the ignition device;

[0044] The control device includes a controller and an interactive terminal;

[0045] The controller is in communication with the welding gun device and the ignition device;

[0046] The interactive terminal is communicatively connected with the controller.

[0047] It can be seen from the above technical scheme that the annular welding device designed in the present application, its welding gun device includes a welding gun body and a welding gun gas supply assembly, wherein the welding gun body adopts an annular design, and a plurality of welding nozzles are distributed circumferentially on the inner ring wall; the combustible gas is supplied to each welding nozzle through the welding gun gas supply assembly, and the combustible gas coming out of the welding nozzle is ignited by an ignition device, so that the area to be welded of the crystal tube in the welding area can be evenly heated, thereby ensuring the consistency of the product welding quality and helping to improve production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0049] Figure 1 A schematic diagram of the structure of a ring welding device provided in the present application with a control device and a crystal wafer;

[0050] Figure 2 This is a schematic structural diagram of a ring welding device provided in this application;

[0051] In the figure: 1, welding gun device; 11, welding gun body; 111, welding nozzle; 12, welding gun gas supply assembly; 121, first mixed delivery pipe; 122, first hydrogen delivery pipe; 123, first oxygen delivery pipe; 124, first hydrogen control valve; 125, first oxygen control valve; 126, first mixed delivery check valve; 13, cooling assembly; 131, cooling water inlet pipe; 132, cooling water return pipe; 133, first cooling water control valve; 134, second cooling water control valve; 2. Ignition device; 21. Ignitor; 22. Ignition gas supply assembly; 221. Second mixing pipe; 222. Second hydrogen delivery pipe; 223. Second oxygen delivery pipe; 224. Second hydrogen control valve; 225. Second oxygen control valve; 226. Second mixing check valve; 3. Crystal tube; 31. Area to be welded; 4. Control device; 41. Controller; 42. Interactive terminal; 5. Moving device; 51. First linear displacement device; 52. Second linear displacement device. DETAILED DESCRIPTION

[0052] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. All other embodiments obtained by ordinary technicians in this field without creative work based on the embodiments in the embodiments of the present application are within the scope of protection of the embodiments of the present application.

[0053] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0054] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0055] The embodiment of the present application discloses an annular welding device.

[0056] See also Figure 1 , an embodiment of an annular welding device provided in the embodiments of the present application includes:

[0057] A welding gun device 1 and an ignition device 2.

[0058] The welding gun device 1 comprises a welding gun body 11 and a welding gun gas supply assembly 12 .

[0059] A welding gun body 11 and a plurality of welding nozzles 111; the welding gun body 11 is annular; the plurality of welding nozzles 111 are evenly distributed on the inner ring wall of the welding gun body 11 around the central axis of the welding gun body 11, and a welding area is formed between them; a welding gun gas supply assembly 12 is used to supply combustible gas to each welding nozzle 111; an ignition device 2 is arranged on one side of the welding gun body 11, and is used to ignite the welding nozzle 111.

[0060] The welding gun body 11 adopts an annular design, and a plurality of welding nozzles 111 are distributed around the inner ring wall; combustible gas is supplied to each welding nozzle 111 through the welding gun gas supply assembly 12, and the combustible gas coming out of the welding nozzle 111 is ignited through the ignition device 2, so that the area to be welded 31 of the crystal tube 3 in the welding area can be heated evenly, avoiding the effect that the processing cannot maintain consistency, reducing the unqualified rate caused by uneven welds, leaky welds and false welds caused by manual welding, ensuring the consistency of product welding quality and improving production capacity.

[0061] The above is an embodiment of a ring welding device provided in the embodiment of the present application. The following is an embodiment of a ring welding device provided in the embodiment of the present application. For details, please refer to Figure 1 to Figure 2 .

[0062] Based on the solution of the above embodiment 1:

[0063] Furthermore, an air guide cavity is provided in the inner ring of the welding gun body 11, and each welding nozzle 111 is connected to the air guide cavity. The welding gun gas supply assembly 12 is connected to the air guide cavity, and the combustible gas is transported into the air guide cavity, thereby transporting the combustible gas to each welding nozzle 111; this design does not require an external air guide pipe, making the overall structure more compact.

[0064] Furthermore, if Figure 2 As shown, the welding gun gas supply assembly 12 is designed to include a first mixed gas delivery pipe 121 , a first hydrogen delivery pipe 122 and a first oxygen delivery pipe 123 .

[0065] One end of the first mixing pipe 121 is connected to the welding gun body 11 and communicated with the gas guide cavity; one end of the first hydrogen delivery pipe 122 and one end of the first oxygen delivery pipe 123 are respectively connected to the other end of the first mixing pipe 121; the first hydrogen delivery pipe 122 is provided with a first hydrogen control valve 124; the first oxygen delivery pipe 123 is provided with a first oxygen control valve 125. For the convenience of control, the first hydrogen control valve 124 and the second hydrogen control valve 224 are electrically controlled regulating valves.

[0066] Furthermore, in order to avoid backflow, a first mixing check valve 126 is provided on the first mixing pipe 121 to improve the safety of use.

[0067] Furthermore, if Figure 1 As shown, the welding gun device 1 further includes a cooling assembly 13; the cooling assembly 13 is connected to the welding gun body 11 and is used to cool the welding gun body 11. The design of the cooling assembly 13 can cool the welding gun body 11, thereby effectively increasing the service life of the welding gun body 11 and reducing maintenance costs.

[0068] Furthermore, if Figure 2 As shown, taking water cooling as an example, a cooling chamber is further provided in the welding gun body 11, and the cooling assembly 13 includes a cooling water inlet pipe 131 and a cooling water return pipe 132; a water inlet and a water return pipe connected to the cooling chamber are provided on the welding gun body 11; one end of the cooling water inlet pipe 131 is connected to the water inlet, and a first cooling water control valve 133 is provided thereon; one end of the cooling water return pipe 132 is connected to the water return pipe, and a second cooling water control valve 134 is provided thereon. For the convenience of control, the first cooling water control valve 133 and the second cooling water control valve 134 are electrically controlled valves, and the use of electrically controlled regulating valves to control the fuel flow rate can save energy and increase efficiency.

[0069] Furthermore, if Figure 1 as well as Figure 2 As shown, the ignition device 2 includes an igniter 21 and an ignition gas supply assembly 22. The igniter 21 adopts an electronically controlled pulse igniter 21, which replaces manual ignition and has higher efficiency.

[0070] The ignition gas supply assembly 22 includes a second mixing pipe 221, a second hydrogen delivery pipe 222 and a second oxygen delivery pipe 223; the second mixing pipe 221 is arranged on one side of the welding gun body 11, and one end thereof is arranged toward a welding nozzle 111; the igniter 21 is installed on the second mixing pipe 221, and is used to ignite the combustible gas output by the second mixing pipe 221 to ignite the welding nozzle 111.

[0071] The second mixing pipe 221 is provided with a second mixing check valve 226 to avoid backflow and improve the safety of use.

[0072] One end of the second hydrogen delivery pipe 222 and one end of the second oxygen delivery pipe 223 are respectively connected to the other end of the second mixing pipe 221; the second hydrogen delivery pipe 222 is provided with a second hydrogen control valve 224; the second oxygen delivery pipe 223 is provided with a second oxygen control valve 225. For the convenience of control, the second hydrogen control valve 224 and the second oxygen control valve 225 are electrically controlled regulating valves, and the use of electrically controlled regulating valves to control the fuel flow rate can save energy and increase efficiency.

[0073] Furthermore, if Figure 1 As shown, the mobile device 5 is also included; the mobile device 5 is connected to the welding gun device 1 and the ignition device 2, and is used to drive the welding gun device 1 and the ignition device 2 to move together. By adding the mobile device 5, the welding gun device 1 and the ignition device 2 can be moved and adjusted, so that welding can be achieved more accurately and the applicability is better.

[0074] Furthermore, if Figure 1 as well as Figure 2 As shown, the moving device 5 includes a first linear displacement device 51 and a second linear displacement device 52 .

[0075] The first linear displacement device 51 is connected to the second linear displacement device 52 to drive the second linear displacement device 52 to move along a horizontal straight line. The first linear displacement device 51 may be a linear slide, with the horizontal straight line being the set X-axis straight line.

[0076] The second linear displacement device 52 is connected to the welding device and the ignition device 2, and is used to drive the welding device and the ignition device 2 to move along a vertical straight line. The second linear displacement device 52 can be a telescopic cylinder. The welding device and the ignition device 2 can be fixed together by a fixed bracket to facilitate the second linear displacement device 52 to drive them.

[0077] The positioning is adjusted by the moving device 5 to ensure the accuracy of the welding position, thereby solving the problem of unstable manual welding, making the welding operation of the crystal tube 3 more stable and improving the welding accuracy.

[0078] Furthermore, in order to realize automatic control, a control device 4 is also included.

[0079] The control device 4 is in communication connection with the welding gun device 1 and the ignition device 2;

[0080] The control device 4 includes a controller 41 and an interactive terminal 42; the controller 41 is in communication connection with the welding torch device 1 and the ignition device 2; the interactive terminal 42 is in communication connection with the controller 41. The controller 41 may be a PLC control module, which can control the opening / closing of the first hydrogen control valve 124, the second hydrogen control valve 224, the first oxygen control valve 125, the second oxygen control valve 225, the first cooling water control valve 133, the second cooling water control valve 134 and the igniter 21, and can also control the operation of the first linear displacement device 51 and the second linear displacement device 52.

[0081] The interactive terminal 42 is a human-computer interaction module capable of human-computer interaction, such as a control panel, a mobile phone, a computer, etc., without specific limitation.

[0082] By adding the control device 4, automated welding can be achieved, further improving efficiency and welding effect.

[0083] Working principle:

[0084] 1. When the material is ready, the first cooling water control valve 133 and the second cooling water control valve 134 are started to open (circulating cooling water prevents the welding gun body 11 from bursting due to excessive temperature). At the same time, the igniter 21 is started, the second hydrogen control valve 224 and the second oxygen control valve 225 are opened, and the ignition start is completed;

[0085] 2. Switch the first hydrogen control valve 124 and the first oxygen control valve 125 at the same time, close the igniter 21 and the second hydrogen control valve 224 and the second oxygen control valve 225 after a delay of 5 seconds, and the second mixed delivery check valve 226 is unidirectional to prevent backfire, and the small fire leads to the big fire;

[0086] 3. The first hydrogen control valve 124 and the first oxygen control valve 125 automatically adjust the proportions according to the parameters set by the interactive terminal 42 (to ensure that the welding flame does not fluctuate);

[0087] 4. Then the first linear displacement device 51 (X-axis displacement device) and the second linear displacement device 52 (Y-axis displacement device) automatically drive the welding gun body 11 to move back and forth according to the time and coordinate parameters set by the interactive terminal 42;

[0088] 5. The first linear displacement device 51 (X-axis displacement device) and the second linear displacement device 52 (Y-axis displacement device) automatically stop after the operation is completed, the first hydrogen control valve 124 and the first oxygen control valve 125 are closed, the first mixed flow check valve 126 is unidirectional to prevent backfire, the first cooling water control valve 133 and the second cooling water control valve 134 are closed after a delay of 5 seconds, and the unloading is ready.

[0089] The above is a detailed introduction to a ring welding device provided by the present application. For a person skilled in the art, according to the idea of ​​the embodiments of the present application, there may be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A ring welding device, characterized in that: It comprises a welding gun device (1) and an ignition device (2); The welding gun device (1) comprises a welding gun body (11) and a welding gun gas supply assembly (12); The welding gun body (11) and a plurality of welding nozzles (111); The welding gun body (11) is annular; A plurality of welding tips (111) are distributed on the inner ring wall of the welding gun body (11) around the central axis of the welding gun body (11), and a welding area is formed between them; The welding gun gas supply assembly (12) is used to supply combustible gas to each welding nozzle (111); The ignition device (2) is arranged on one side of the welding gun body (11) and is used to ignite the welding nozzle (111).

2. The annular welding device according to claim 1, characterized in that: The welding gun body (11) is provided with an air guide cavity in its inner ring; Each welding nozzle (111) is in communication with the air guide cavity; The welding gun gas supply assembly (12) is in communication with the gas guide cavity.

3. The annular welding device according to claim 2, characterized in that: The welding gun gas supply assembly (12) comprises a first mixed gas delivery pipe (121), a first hydrogen gas delivery pipe (122) and a first oxygen gas delivery pipe (123); One end of the first mixing pipe (121) is connected to the welding gun body (11) and communicates with the air guide cavity; One end of the first hydrogen delivery pipe (122) and one end of the first oxygen delivery pipe (123) are respectively connected to the other end of the first mixed delivery pipe (121); The first hydrogen delivery pipe (122) is provided with a first hydrogen control valve (124); The first oxygen delivery pipe (123) is provided with a first oxygen control valve (125).

4. The annular welding device according to claim 3, characterized in that: The first mixed delivery pipe (121) is provided with a first mixed delivery check valve (126).

5. The annular welding device according to claim 1, characterized in that: The welding gun device (1) further comprises a cooling assembly (13); The cooling assembly (13) is connected to the welding gun body (11) and is used to cool the welding gun body (11).

6. The annular welding device according to claim 5, characterized in that: A cooling chamber is also provided in the welding gun body (11); The cooling assembly (13) comprises a cooling water inlet pipe (131) and a cooling water return pipe (132); The welding gun body (11) is provided with a water inlet and a water return port connected to the cooling chamber; One end of the cooling water inlet pipe (131) is connected to the water inlet, and a first cooling water control valve (133) is provided on the cooling water inlet pipe; One end of the cooling water return pipe (132) is connected to the return port, and a second cooling water control valve (134) is provided on the pipe.

7. The annular welding device according to claim 1, characterized in that: The ignition device (2) comprises an igniter (21) and an ignition air supply assembly (22); The ignition gas supply assembly (22) comprises a second mixing pipe (221), a second hydrogen delivery pipe (222) and a second oxygen delivery pipe (223); The second mixing pipe (221) is arranged on one side of the welding gun body (11), and one end thereof is arranged toward one of the welding nozzles (111); The igniter (21) is installed on the second mixing pipe (221) and is used to ignite the combustible gas output by the second mixing pipe (221) so as to ignite the welding nozzle (111); The second mixed delivery pipe (221) is provided with a second mixed delivery check valve (226); One end of the second hydrogen delivery pipe (222) and one end of the second oxygen delivery pipe (223) are respectively connected to the other end of the second mixed delivery pipe (221); The second hydrogen delivery pipe (222) is provided with a second hydrogen control valve (224); The second oxygen delivery pipe (223) is provided with a second oxygen control valve (225).

8. The annular welding device according to claim 1, characterized in that: Also included is a moving device (5); The moving device (5) is connected to the welding gun device (1) and the ignition device (2) and is used to drive the welding gun device (1) and the ignition device (2) to move together.

9. The annular welding device according to claim 8, characterized in that: The moving device (5) comprises a first linear displacement device (51) and a second linear displacement device (52); The first linear displacement device (51) is connected to the second linear displacement device (52) and is used to drive the second linear displacement device (52) to move along a horizontal straight line; The second linear displacement device (52) is connected to the welding device and the ignition device (2) and is used to drive the welding device and the ignition device (2) to move along a vertical linear motion.

10. The annular welding device according to claim 1, characterized in that: Also includes a control device (4); The control device (4) is communicatively connected to the welding gun device (1) and the ignition device (2); The control device (4) comprises a controller (41) and an interactive terminal (42); The controller (41) is communicatively connected to the welding gun device (1) and the ignition device (2); The interactive terminal (42) is communicatively connected to the controller (41).

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