Automatic welding device for furnace tube and flange

Abstract

The utility model provides a furnace tube and flange automatic welding device, and relates to the technical field of furnace tube and flange welding. The furnace tube clamping mechanism, the furnace tube heating mechanism and the flange clamping mechanism are arranged, the flange clamping mechanism is used for clamping a flange, the furnace tube clamping mechanism is used for clamping a quartz furnace tube, and a first flame nozzle and a second flame nozzle are arranged, so that the welding position of the quartz furnace tube and the flange is heated at the same time, and the melting state is achieved; the flange clamping mechanism is movably arranged so that the quartz furnace tube and the flange can be extruded together to achieve flame welding, then flame is adjusted to conduct flame polishing on the welding position, and compared with a traditional filler welding mode, the welding precision and production efficiency of the quartz furnace tube are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of furnace tube and flange welding, in particular to an automatic welding device for furnace tube and flange. Background Art

[0002] In the chemical, petroleum, metallurgical and other industries, the connection between furnace tubes and flanges is a crucial process link. Its quality and precision directly affect the operating efficiency and safety of the entire production line. The traditional method of connecting furnace tubes and flanges mainly adopts the filler welding method. In this method, the welder needs to fill the joint between the flange and the furnace tube with solder, and then melt the solder by heating to achieve the connection. However, this method has the following obvious defects:

[0003] First, the accuracy of the filler welding method is difficult to guarantee. Since the filler is affected by various factors during the melting process, such as temperature, pressure, and time, it is difficult to achieve precise welding. This may cause gaps or misalignment in the connection between the furnace tube and the flange, thus affecting its sealing and strength. Second, the filler welding method is inefficient. Since solder needs to be manually filled and heated, the welding process is time-consuming and requires experienced welders to operate. This not only increases production costs but also limits the degree of automation of the production line. Therefore, we have made improvements to this problem and proposed an automatic welding device for furnace tubes and flanges. Summary of the Invention

[0004] The purpose of the utility model is to solve the problems that the existing traditional furnace tube and flange connection method mainly adopts the filler welding method, in which the welder needs to fill the joint of the flange and the furnace tube with solder and then melt the solder by heating, which has the problems of difficult to ensure accuracy and low efficiency.

[0005] In order to achieve the above-mentioned purpose of the invention, the utility model provides an automatic welding device for furnace tubes and flanges to improve the above-mentioned problems.

[0006] The specific application is as follows:

[0007] A furnace tube and flange automatic welding device comprises a frame, wherein a furnace tube clamping mechanism, a furnace tube heating mechanism, and a flange clamping mechanism are sequentially arranged on the top of the frame, wherein the furnace tube clamping mechanism and the flange clamping mechanism are respectively used to fix the furnace tube and the flange, and a gas pipe is arranged in the flange clamping mechanism, wherein one end of the gas pipe is fixedly connected to a connecting pipe, and the outer peripheral side of the connecting pipe is fixedly connected to a plurality of second flame nozzles;

[0008] The furnace tube heating mechanism and the flange clamping mechanism can be movably arranged above the frame. The furnace tube heating mechanism includes two arc tubes. A plurality of first flame nozzles are fixedly connected to one side of the two arc tubes close to each other.

[0009] As a preferred technical solution of the present application, two slide rails are fixedly connected to the top of the frame, a groove is provided on the top of one of the slide rails, and a rack is installed in the groove.

[0010] As a preferred technical solution of the present application, the furnace tube heating mechanism also includes a first support platform, and first slides are fixedly connected to both sides of the bottom of the first support platform, and the two first slides are respectively slidably connected to the outer surfaces of the two slide rails.

[0011] As a preferred technical solution of the present application, a first gear is provided in the first support platform, the bottom end of the first gear passes through the first support platform and one of the first slides and engages with the rack, the middle part of the first gear is fixedly connected to the first slide, and one end of the first slide passes through the first support platform and is fixedly connected to the first hand wheel.

[0012] As a preferred technical solution of the present application, two connecting rods are fixedly connected to the top of the first support platform, the tops of the two connecting rods are fixedly connected to the first column, the outer surfaces of the two first columns are provided with a first clamping seat, the two first clamping seats are connected to the first support rod, the two first support rods are connected to the second clamping seat, the two second clamping seats are connected to the second support rod, and the ends of the two second support rods close to each other are fixedly connected to the two arc tubes respectively.

[0013] As a preferred technical solution of the present application, the tops of the two connecting rods are fixedly connected to a second column, the outer surface of the second column is provided with several third clamping seats, several of the third clamping seats are connected to the third support rod, several of the third support rods are connected to the fourth clamping seats, several of the fourth clamping seats are connected to the fourth support rod, and the fourth support rod is connected to a quartz lamp holder.

[0014] As a preferred technical solution of the present application, the furnace tube clamping mechanism includes a first support seat installed on the top of the frame, the middle part of the first support seat is rotatably connected to a first support tube, one end of the first support tube is connected to a furnace tube clamp, and the outer surface of the first support tube is fixedly sleeved with two first turntables.

[0015] As a preferred technical solution of the present application, the flange clamping mechanism includes a second support seat, two second slides are fixedly installed on the bottom of the second support seat, and the two second slides are respectively slidably connected to the outer surfaces of the two slide rails. A second gear is provided in the second support seat, and the bottom end of the second gear passes through the second support seat and one of the second slides and engages with the rack. The middle part of the second gear is fixedly connected to the second rotating shaft, and one end of the second rotating shaft passes through the second support seat and is fixedly connected to the second hand wheel.

[0016] As a preferred technical solution of the present application, the middle part of the second support seat is rotatably connected to the second support tube, one end of the second support tube is connected to a flange clamp, and the outer surface of the flange clamp is fixedly connected to the second turntable.

[0017] As a preferred technical solution of the present application, the gas delivery pipe is arranged in the second support pipe, and the connecting pipe is arranged in the flange clamp.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] In the scheme of this application:

[0020] The present application sets up a furnace tube clamping mechanism, a furnace tube heating mechanism and a flange clamping mechanism. The flange clamping mechanism is used to clamp the flange, and the furnace tube clamping mechanism is used to clamp the quartz furnace tube. The setting of the first flame nozzle and the second flame nozzle allows the quartz furnace tube and the flange welding point to be heated at the same time to reach a melted state. The flange clamping mechanism can be movably set so that the quartz furnace tube and the flange welding point can be squeezed together to achieve flame welding, and then the flame is adjusted to flame polish the welding point. Compared with the traditional filler welding method, the present application improves the accuracy and production efficiency of quartz furnace tube welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of the furnace tube and flange automatic welding device provided in this application;

[0022] Figure 2 A schematic diagram of the partial structure of the furnace tube heating mechanism of the furnace tube and flange automatic welding device provided in this application;

[0023] Figure 3 This is a structural schematic diagram of the flange clamping mechanism of the furnace tube and flange automatic welding device provided in this application.

[0024] Indicated in the figure:

[0025] 1. Frame; 101. Slide rail; 102. Rack;

[0026] 2. Furnace tube clamping mechanism; 201. First support seat; 202. First support tube; 203. Furnace tube chuck; 204. First turntable;

[0027] 3. Furnace tube heating mechanism; 301. First support platform; 302. First slide; 303. First rotating shaft; 304. First hand wheel; 305. Connecting rod; 306. First column; 307. First clamping seat; 308. First support rod; 309. Second clamping seat; 310. Second support rod; 311. Arc tube; 312. First flame nozzle; 313. Second column; 314. Third clamping seat; 315. Third support rod; 316. Fourth clamping seat; 317. Fourth support rod; 318. Quartz lamp holder; 319. Controller; 320. Support plate;

[0028] 4. Flange clamping mechanism; 401. Second support base; 402. Second support tube; 403. Flange chuck; 404. Second turntable; 405. Second slide; 406. Second rotating shaft; 407. Second hand wheel;

[0029] 5. Gas transmission pipe; 501. Connecting pipe; 502. Second flame nozzle. DETAILED DESCRIPTION

[0030] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0031] As described in the background technology, the traditional method of connecting furnace tubes and flanges mainly adopts the filler welding method. In this method, the welding worker needs to fill solder at the connection between the flange and the furnace tube, and then melt the solder by heating to achieve the connection. However, this method has the following obvious defects: First, the accuracy of the filler welding method is difficult to guarantee. Since the filler will be affected by many factors during the melting process, such as temperature, pressure, time, etc., it is difficult to achieve precise welding, which may cause gaps or misalignments in the connection parts between the furnace tube and the flange, thereby affecting its sealing and strength; secondly, the filler welding method is less efficient. Since the solder needs to be manually filled and heated, the welding process takes a long time and requires experienced welders to operate, which not only increases production costs, but also limits the degree of automation of the production line.

[0032] In order to solve this technical problem, the utility model provides a furnace tube and flange automatic welding device, which is used for automatic welding of furnace tubes and flanges.

[0033] Specifically, please refer to Figure 1-Figure 3 , the furnace tube and flange automatic welding device specifically includes:

[0034] Frame 1, frame 1, the top of the frame 1 is sequentially provided with a furnace tube clamping mechanism 2, a furnace tube heating mechanism 3 and a flange clamping mechanism 4. The furnace tube clamping mechanism 2 and the flange clamping mechanism 4 are used to fix the furnace tube and the flange respectively. The flange clamping mechanism 4 is provided with a gas pipe 5. One end of the gas pipe 5 is fixedly connected to a connecting pipe 501. The outer peripheral side of the connecting pipe 501 is fixedly connected to a plurality of second flame nozzles 502.

[0035] The furnace tube heating mechanism 3 and the flange clamping mechanism 4 can be movably arranged above the frame 1. The furnace tube heating mechanism 3 includes two arc tubes 311. A plurality of first flame nozzles 312 are fixedly connected to the sides of the two arc tubes 311 close to each other.

[0036] The utility model provides an automatic welding device for furnace tubes and flanges. The present application sets a furnace tube clamping mechanism 2, a furnace tube heating mechanism 3 and a flange clamping mechanism 4. The flange clamping mechanism 4 is used to clamp the flange, and the furnace tube clamping mechanism 2 is used to clamp the quartz furnace tube. The setting of the first flame nozzle 312 and the second flame nozzle 502 allows the quartz furnace tube and the flange welding point to be heated at the same time to reach a melted state. The flange clamping mechanism 4 is movably set so that the quartz furnace tube and the flange welding point can be squeezed together to achieve flame welding, and then the flame is adjusted to flame polish the welding point. Compared with the traditional filler welding method, the present application improves the accuracy and production efficiency of quartz furnace tube welding.

[0037] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein can be combined with each other.

[0039] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0040] Example 1, please refer to Figure 1-Figure 3 A furnace tube and flange automatic welding device includes a frame 1, a furnace tube clamping mechanism 2, a furnace tube heating mechanism 3, and a flange clamping mechanism 4 are sequentially arranged on the top of the frame 1, the furnace tube clamping mechanism 2 and the flange clamping mechanism 4 are respectively used to fix the furnace tube and the flange, and a gas pipe 5 is provided in the flange clamping mechanism 4, one end of the gas pipe 5 is fixedly connected to a connecting pipe 501, and the outer peripheral side of the connecting pipe 501 is fixedly connected to a plurality of second flame nozzles 502;

[0041] The furnace tube heating mechanism 3 and the flange clamping mechanism 4 can be movably arranged above the frame 1. The furnace tube heating mechanism 3 includes two arc tubes 311. The two arc tubes 311 are fixedly connected to a plurality of first flame nozzles 312 on one side close to each other; the gas supply pipe 5 and the arc tube 311 are both connected to a control valve, which is used to adjust the delivery of gas fuel, thereby realizing the adjustment of the flame.

[0042] The present application sets up a furnace tube clamping mechanism 2, a furnace tube heating mechanism 3 and a flange clamping mechanism 4. The flange clamping mechanism 4 is used to clamp the flange, and the furnace tube clamping mechanism 2 is used to clamp the quartz furnace tube. The setting of the first flame nozzle 312 and the second flame nozzle 502 allows the quartz furnace tube and the flange welding point to be heated at the same time to reach a melted state. The flange clamping mechanism 4 can be movably set so that the quartz furnace tube and the flange welding point can be squeezed together to achieve flame welding, and then the flame is adjusted to flame polish the welding point. Compared with the traditional filler welding method, the present application improves the accuracy and production efficiency of quartz furnace tube welding.

[0043] Furthermore, two slide rails 101 are fixedly connected to the top of the rack 1 , wherein a groove is formed on the top of one of the slide rails 101 , and a rack 102 is installed in the groove.

[0044] Example 2, further optimizes the furnace tube and flange automatic welding device provided in Example 1, specifically, as Figure 1 As shown, the furnace tube heating mechanism 3 also includes a first support platform 301, and first slides 302 are fixedly connected to both sides of the bottom of the first support platform 301. The two first slides 302 are respectively slidably connected to the outer surfaces of the two slide rails 101. The first slides 302 and the slide rails 101 cooperate with each other to support the first support platform 301.

[0045] Further, such as Figure 1 As shown, a first gear is provided in the first support platform 301, the bottom end of the first gear passes through the first support platform 301 and one of the first slides 302 and meshes with the rack 102, the middle part of the first gear is fixedly connected to the first slide 302, one end of the first slide 302 passes through the first support platform 301 and is fixedly connected to the first hand wheel 304, and a support plate 320 is also installed on the top of the first support platform 301, and a controller 319 is installed on the support plate 320. Rotating the first hand wheel 304 can make the first rotating shaft 303 drive the first gear to rotate, and when the first gear rotates, it cooperates with the rack 102 to drive the first support platform 301 to move.

[0046] Further, such as Figure 1 and Figure 2As shown, the top of the first support platform 301 is fixedly connected to two connecting rods 305, the tops of the two connecting rods 305 are fixedly connected to the first column 306, the outer surfaces of the two first columns 306 are provided with first clamping seats 307, the two first clamping seats 307 are connected to the first support rod 308, the two first support rods 308 are connected to the second clamping seat 309, and the two second clamping seats 309 are connected to the second support rod 310. The ends of the two second support rods 310 close to each other are respectively fixedly connected to the two arc tubes 311, and the first column 306, the first clamping seat 307, the first support rod 308, the second clamping seat 309 and the second support rod 310 cooperate with each other to support the arc tube 311.

[0047] Further, such as Figure 1 and Figure 2 As shown, the tops of the two connecting rods 305 are fixedly connected to the second column 313, and the outer surface of the second column 313 is provided with several third clamping seats 314, and several third clamping seats 314 are connected to the third support rod 315, and several third support rods 315 are connected to the fourth clamping seats 316, and several fourth clamping seats 316 are connected to the fourth support rod 317. The fourth support rod 317 is connected to the quartz lamp holder 318, and the quartz lamp holder 318 can preheat the welding point of the quartz furnace tube.

[0048] Further, such as Figure 1 As shown, the furnace tube clamping mechanism 2 includes a first support seat 201 installed on the top of the frame 1, and the middle part of the first support seat 201 is rotatably connected to the first support tube 202, and one end of the first support tube 202 is connected to the furnace tube clamp 203. The outer surface of the first support tube 202 is fixedly sleeved with two first turntables 204. The setting of the first turntable 204 can facilitate manual rotation of the first support tube 202, and the furnace tube clamp 203 clamps the quartz furnace tube, which can facilitate the quartz furnace tube to align with the flange.

[0049] Example 3 further optimizes the furnace tube and flange automatic welding device provided in Example 1 or 2. Specifically, Figure 1 and Figure 3As shown, the flange clamping mechanism 4 includes a second support seat 401, and two second slides 405 are fixedly installed on the bottom of the second support seat 401. The two second slides 405 are respectively slidably connected to the outer surfaces of the two slide rails 101. A second gear is arranged in the second support seat 401. The bottom end of the second gear passes through the second support seat 401 and one of the second slides 405 and engages with the rack 102. The middle part of the second gear is fixedly connected with a second rotating shaft 406, and one end of the second rotating shaft 406 passes through the second support seat 401 and is fixedly connected with a second hand wheel 407. When the second hand wheel 407 is rotated, the second support seat 401 can be driven to move through the mutual cooperation of the second rotating shaft 406, the second gear and the rack 102, so that the flange can contact the quartz furnace tube for welding.

[0050] Further, such as Figure 1 and Figure 3 As shown, the middle part of the second support seat 401 is rotatably connected to the second support tube 402, one end of the second support tube 402 is connected to the flange clamp 403, the outer surface of the flange clamp 403 is fixedly connected to the second turntable 404, and the center of the flange clamp 403 is on the same horizontal line as the center of the furnace tube clamp 203. This arrangement allows the centers of the flange and the quartz furnace tube to be aligned when the furnace tube clamp 203 clamps the quartz furnace tube and the flange clamp 403 clamps the flange.

[0051] Further, such as Figure 1 and Figure 3 As shown, the gas delivery pipe 5 is arranged in the second support pipe 402, the connecting pipe 501 is arranged in the flange clamp 403, and the second flame nozzle 502 sprays flame to heat the flange.

[0052] The use process of the automatic welding device for furnace tubes and flanges provided by the utility model is as follows:

[0053] Insert the quartz furnace tube into the first support tube 202 and pass it through the two arc tubes 311. Clamp and fix the quartz furnace tube with the furnace tube clamp 203. Clamp the flange in the second support tube 402. Heat the flange with the second flame nozzle 502. Preheat the quartz furnace tube with the quartz lamp holder 318. Then move the furnace tube heating mechanism 3 so that the flame ejected from the first flame nozzle 312 heats the quartz furnace tube. Then, butt the quartz furnace tube and the flange together to achieve welding. Adjust the flame with a valve. Then, flame polish the weld between the quartz furnace tube and the flange.

[0054] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0055] Obviously, the embodiments described above are only some of the embodiments of the present invention, rather than all of the embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned specific embodiments, or to make equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of protection of the patent of the present invention.

Claims

1. A furnace tube and flange automatic welding device, characterized in that: The invention comprises a frame (1), wherein a furnace tube clamping mechanism (2), a furnace tube heating mechanism (3) and a flange clamping mechanism (4) are sequentially arranged on the top of the frame (1), wherein the furnace tube clamping mechanism (2) and the flange clamping mechanism (4) are respectively used for fixing the furnace tube and the flange, and wherein a gas delivery pipe (5) is arranged in the flange clamping mechanism (4), wherein one end of the gas delivery pipe (5) is fixedly connected to a connecting pipe (501), and the outer peripheral side of the connecting pipe (501) is fixedly connected to a plurality of second flame nozzles (502); The furnace tube heating mechanism (3) and the flange clamping mechanism (4) can both be movably arranged above the frame (1); the furnace tube heating mechanism (3) comprises two arc tubes (311); and a plurality of first flame nozzles (312) are fixedly connected to the mutually adjacent sides of the two arc tubes (311).

2. The automatic welding device for furnace tubes and flanges according to claim 1, characterized in that: Two slide rails (101) are fixedly connected to the top of the frame (1), wherein a groove is provided on the top of one of the slide rails (101), and a rack (102) is installed in the groove.

3. The automatic welding device for furnace tubes and flanges according to claim 2, characterized in that: The furnace tube heating mechanism (3) further comprises a first support platform (301), both sides of the bottom of the first support platform (301) are fixedly connected with first slide seats (302), and the two first slide seats (302) are respectively slidably connected to the outer surfaces of the two slide rails (101).

4. The automatic welding device for furnace tubes and flanges according to claim 3, characterized in that: A first gear is provided in the first support platform (301), the bottom end of the first gear passes through the first support platform (301) and one of the first slides (302) and meshes with the rack (102), the middle part of the first gear is fixedly connected to the first slide (302), and one end of the first slide (302) passes through the first support platform (301) and is fixedly connected to the first hand wheel (304).

5. The automatic welding device for furnace tubes and flanges according to claim 4, characterized in that: The top of the first support platform (301) is fixedly connected to two connecting rods (305), the tops of the two connecting rods (305) are fixedly connected to the first columns (306), the outer surfaces of the two first columns (306) are provided with first clamping seats (307), the two first clamping seats (307) are connected to the first support rod (308), the two first support rods (308) are connected to the second clamping seats (309), the two second clamping seats (309) are connected to the second support rod (310), and the ends of the two second support rods (310) that are close to each other are fixedly connected to the two arc tubes (311) respectively.

6. The automatic welding device for furnace tubes and flanges according to claim 5, characterized in that: The tops of the two connecting rods (305) are fixedly connected to a second column (313); the outer surface of the second column (313) is provided with a plurality of third clamping seats (314); the plurality of third clamping seats (314) are connected to a third support rod (315); the plurality of third support rods (315) are connected to a fourth clamping seat (316); the plurality of fourth clamping seats (316) are connected to a fourth support rod (317); and the fourth support rod (317) is connected to a quartz lamp holder (318).

7. The automatic welding device for furnace tubes and flanges according to claim 6, characterized in that: The furnace tube clamping mechanism (2) comprises a first support seat (201) mounted on the top of the frame (1); a first support tube (202) is rotatably connected to the middle portion of the first support seat (201); a furnace tube clamp (203) is connected to one end of the first support tube (202); and two first turntables (204) are fixedly sleeved on the outer surface of the first support tube (202).

8. The automatic welding device for furnace tubes and flanges according to claim 7, characterized in that: The flange clamping mechanism (4) includes a second support seat (401), two second slides (405) are fixedly installed on the bottom of the second support seat (401), and the two second slides (405) are respectively slidably connected to the outer surfaces of the two slide rails (101). A second gear is provided in the second support seat (401), and the bottom end of the second gear passes through the second support seat (401) and one of the second slides (405) and engages with the rack (102). The middle part of the second gear is fixedly connected to a second rotating shaft (406), and one end of the second rotating shaft (406) passes through the second support seat (401) and is fixedly connected to a second hand wheel (407).

9. The automatic welding device for furnace tubes and flanges according to claim 8, characterized in that: The middle part of the second support seat (401) is rotatably connected to a second support tube (402), one end of the second support tube (402) is connected to a flange clamp (403), and the outer surface of the flange clamp (403) is fixedly connected to a second turntable (404).

10. The automatic welding device for furnace tubes and flanges according to claim 9, characterized in that: The gas delivery pipe (5) is arranged in the second support pipe (402), and the connecting pipe (501) is arranged in the flange clamp (403).

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