U-shaped electric heating tube machining feeding mechanism

Abstract

The invention provides a U-shaped electric heating tube machining feeding mechanism, and relates to the field of electric heating tube machining. The U-shaped electric heating tube machining feeding mechanism comprises a platen, a distance adjusting mechanism, a flow guide feeding mechanism, a tube dragging mechanism, a clamping mechanism, a tube bending mechanism and a tube pressing mechanism. According to the invention, by arranging the spacing adjusting mechanism, a core component can be integrated in a cavity formed in the top of the platen, a double-shaft motor is stably fixed in the cavity through a mounting plate, the power output end of the double-shaft motor is connected with a rotating shaft, and the rotating shaft is rotatably connected with the inner walls of the two sides of the cavity through bearings, so that the rotating stability and low friction are ensured; the two rotating shafts synchronously drive the threaded rod to rotate, the moving block in threaded connection with the threaded rod linearly moves along the threaded rod under the action of rotating force, in order to accurately control the position of the moving block, four positioning grooves are formed in each of the moving block and the feeding plates, and the distance between the feeding plates is rapidly and accurately adjusted by inserting limiting pins and fixing through fixing rings.

Description

Technical Field

[0001] The invention relates to the field of electric heating tube processing, and in particular to a U-shaped electric heating tube processing feeding mechanism. Background Art

[0002] The U-shaped electric heating tube is a common tubular electric heating element, named for its "U"-shaped appearance. It consists of a metal tube (such as stainless steel, copper, iron, etc.), a heating wire, an insulating material (such as magnesium oxide powder), etc. The current flows through the heating wire to generate heat, and then the heat is transferred to the heated object through the metal tube. It is widely used in scenarios such as heating liquids, air, and solids.

[0003] However, when feeding U-shaped electric heating tubes, the distance between the two feeding plates often needs to be adjusted manually, which greatly increases the workload of the personnel and reduces efficiency. In addition, the accuracy of manual adjustment depends entirely on the experience and proficiency of the operator. Errors during operation by different workers are difficult to avoid, resulting in poor consistency in the spacing between the two feeding plates. This spacing deviation will cause the U-shaped electric heating tube to offset and jam during the feeding process, which not only easily causes scratches and damage to the surface of the tube and reduces the product qualification rate, but may also further extend the production cycle due to frequent shutdowns to deal with the jamming problem. Moreover, with the increasing number of specifications and models of U-shaped electric heating tubes, the feeding settings of different spacings need to be frequently switched during the production process. The lag of manual adjustment becomes more and more prominent, making it difficult to meet the flexible production needs of multiple varieties and small batches. Therefore, a person skilled in the art provides a U-shaped electric heating tube processing and feeding mechanism to solve the problems raised in the above background technology. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the prior art, the present invention provides a U-shaped electric heating tube processing and feeding mechanism, which solves the problem of low efficiency in manually adjusting the spacing.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] The cam is fixedly provided with a toothed plate on the top of the toothed plate, and the toothed plate is fixedly provided with a toothed plate on the top of the toothed plate.

[0009] Through the above technical solution, by setting up a spacing adjustment mechanism, the core components can be integrated into the cavity opened on the top of the table. The dual-axis motor is firmly fixed in the cavity through the mounting plate, and its power output end is connected to the rotating shaft. The rotating shaft is rotatably connected to the inner walls on both sides of the cavity through bearings to ensure the stability and low friction of the rotation. Under the drive of the dual-axis motor, the two rotating shafts synchronously drive the threaded rod to rotate, and the moving block threadedly connected to the threaded rod moves straight along the threaded rod under the action of the rotational force. In order to accurately control the position of the moving block, four positioning grooves are provided inside the moving block and the feed plate. By inserting the limit pins and fixing them with the fixing rings, the feeding plate spacing can be quickly and accurately adjusted. In addition, the sliding blocks on both sides of the moving block and the four sliding grooves on the side walls of the cavity slide together, which not only provides guidance for the moving block, but also enhances the smoothness of the mechanism operation, effectively avoiding the offset of the feed plate during the adjustment process.

[0010] Furthermore, the diversion feeding mechanism includes guide plates fixedly connected to the sides of the two feeding plates, the interiors of the two guide plates are movably connected with pin shafts, the surfaces of the two pin shafts are fixedly connected to the limit frame, the sides of the two feeding plates are fixedly connected with fixed blocks, the interiors of the two fixed blocks are fixedly installed with first electric push rods, the surfaces of the two first electric push rods are fixedly connected with support rods, and the two ends of the support rods are fixedly connected to the two sides of the inner wall of the limit frame;

[0011] Through the above technical solution, the diversion feeding mechanism is installed on the sides of the two feeding plates, and works together through the guide plate, pin shaft, limit frame, fixed block, first electric push rod and support rod. The guide plate is fixedly connected to the feeding plate, and the pin shaft is movably connected in the guide plate so that the limit frame can flexibly rotate around the pin shaft. The first electric push rod is installed in the fixed block, and its telescopic action is transmitted to the limit frame through the support rod, thereby adjusting the inclination angle of the limit frame, realizing precise guidance of the feeding path of the U-shaped electric heating tube, and effectively avoiding the displacement or jamming of the pipe during the feeding process.

[0012] Furthermore, the pipe pulling mechanism includes a first hydraulic cylinder fixedly mounted on the top of the table, a first hydraulic rod fixedly mounted inside the first hydraulic cylinder, and one end of the first hydraulic rod fixedly connected to a support seat;

[0013] Through the above technical solution, the pipe pulling mechanism consists of a first hydraulic cylinder fixed on the top of the table and a first hydraulic rod inside it. The telescopic movement of the first hydraulic rod can drive the support seat to move in position, providing a stable displacement function for subsequent pipe clamping and processing, ensuring that the pipe is in a suitable processing position.

[0014] Furthermore, the clamping mechanism includes support blocks fixedly connected to both sides of the support seat, second electric push rods are fixedly installed inside the two support blocks, one end of the two second electric push rods are fixedly connected to a connecting plate, the sides of the two connecting plates are fixedly connected to the clamping blocks, and the top of the support seat is fixedly connected to a round block;

[0015] Through the above technical solution, the clamping mechanism is installed on the support seat, and the second electric push rods in the support blocks on both sides push the connecting plate and the clamping block to move, thereby realizing the clamping and loosening of the pipe. The round block on the top of the support seat provides auxiliary support for the pipe, enhances the clamping stability, and also assists the pipe bending operation to ensure that the pipe will not shake or displace during the processing process.

[0016] Furthermore, the pipe bending mechanism includes a second hydraulic cylinder fixedly mounted on the top of the table, and there are two second hydraulic cylinders, each of which has a second hydraulic rod fixedly mounted therein, one end of each of the second hydraulic rods being fixedly connected to a concave plate, and each of the two concave plates being fixedly connected to a pipe bending column.

[0017] Through the above technical solution, the pipe bending mechanism includes two second hydraulic cylinders fixed on the top of the table. The second hydraulic rod drives the concave plate and the pipe bending column to move. Through the coordinated extrusion of the two pipe bending columns, the bending forming process of the U-shaped electric heating tube is realized. The structure is simple and the forming accuracy is high.

[0018] Furthermore, the pipe pressing mechanism includes a fixing frame overlapped on the top of the table, the interior of the fixing frame is threadedly connected to the interior of the table, and there are two first screws. A third hydraulic cylinder is fixedly installed inside the fixing frame, and a third hydraulic rod is fixedly installed inside the third hydraulic cylinder. The bottom end of the third hydraulic rod is fixedly connected to the pressing plate;

[0019] Through the above technical solution, the tube pressing mechanism fixes the fixing frame to the table plate through the first screw, and the third hydraulic cylinder and the third hydraulic rod in the fixing frame drive the pressing plate to move up and down. After the U-shaped electric heating tube is processed, it is pressed down to facilitate the U-shaped electric heating tube to fall onto the guide column.

[0020] Furthermore, a baffle is fixedly installed inside the cavity by studs, the bottom of the platform is fixedly connected to a pedestal, the bottom of the pedestal is fixedly connected to supporting legs, there are four supporting legs, and the side of the pedestal is fixedly connected to a storage box;

[0021] Through the above technical solution, a baffle is fixed inside the cavity by studs to prevent internal components from being disturbed by external debris. The base at the bottom of the table, the support legs and the storage box on the side provide stable support and pipe storage functions respectively.

[0022] Furthermore, a fixing plate is overlapped on the side of the table, the interior of the fixing plate is threadedly connected to the interior of the table with a second screw, there are two second screws, and a guide column is fixedly connected to the side of the fixing plate;

[0023] Through the above technical solution, the fixing plate and the guide column fixed on the side of the table by the second screw can provide guiding assistance for the transportation of pipes.

[0024] (3) Beneficial effects

[0025] The present invention provides a U-shaped electric heating tube processing feeding mechanism. It has the following beneficial effects:

[0026] 1. The present invention provides a U-shaped electric heating tube processing and feeding mechanism. By setting a spacing adjustment mechanism, the core components can be integrated into the cavity opened on the top of the table. The dual-axis motor is firmly fixed in the cavity through a mounting plate, and its power output end is connected to the rotating shaft. The rotating shaft is rotatably connected to the inner walls on both sides of the cavity through bearings to ensure the stability and low friction of the rotation. Under the drive of the dual-axis motor, the two rotating shafts synchronously drive the threaded rod to rotate, and the moving block threadedly connected to the threaded rod moves straightly along the threaded rod under the action of the rotational force. In order to accurately control the position of the moving block, four positioning grooves are provided inside the moving block and the feeding plate, which are fixed by inserting limit pins and fixed with fixed rings to achieve fast and precise adjustment of the feeding plate spacing. In addition, the sliding blocks on both sides of the moving block slide with the four sliding grooves on the side walls of the cavity, which not only provides guidance for the moving block, but also enhances the stability of the mechanism operation, and effectively avoids the feed plate from offsetting during the adjustment process.

[0027] 2. The present invention provides a U-shaped electric heating tube processing feeding mechanism, in which the diversion feeding mechanism is installed on the sides of two feeding plates, and works together through the guide plate, the pin shaft, the limit frame, the fixed block, the first electric push rod and the support rod. The guide plate is fixedly connected to the feeding plate, and the pin shaft is movably connected in the guide plate so that the limit frame can flexibly rotate around the pin shaft. The first electric push rod is installed in the fixed block, and its telescopic action is transmitted to the limit frame through the support rod, thereby adjusting the inclination angle of the limit frame to achieve precise guidance of the U-shaped electric heating tube feeding path, effectively avoiding the deviation or jamming of the pipe during the feeding process, and the pipe pulling mechanism is composed of a first hydraulic cylinder fixed on the top of the table plate and a first hydraulic rod inside it. The telescopic movement of the first hydraulic rod can drive the support seat to move in position, providing a stable displacement function for subsequent pipe clamping and processing, and ensuring that the pipe is in a suitable processing position.

[0028] 3. The present invention provides a U-shaped electric heating tube processing and feeding mechanism, wherein the clamping mechanism is installed on the support seat, and the second electric push rods in the support blocks on both sides push the connecting plate and the clamping block to move, thereby realizing the clamping and loosening of the tube. The round block on the top of the support seat provides auxiliary support for the tube, thereby enhancing the clamping stability. At the same time, it also assists the tube bending operation to ensure that the tube will not shake or displace during the processing. The tube bending mechanism includes two second hydraulic cylinders fixed on the top of the table plate, and the second hydraulic rod drives the concave plate and the tube bending column to move. The U-shaped electric heating tube is bent and formed by the cooperative extrusion of the two tube bending columns. The structure is simple and the forming accuracy is high. The tube pressing mechanism fixes the fixing frame to the table plate by the first screw, and the third hydraulic cylinder and the third hydraulic rod in the fixing frame drive the pressing plate to move up and down. After the U-shaped electric heating tube is processed, it is pressed down to facilitate the U-shaped electric heating tube to fall on the guide column. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall front view structure of the present invention;

[0030] Figure 2 Schematic diagram of the cross-sectional structure of the spacing adjustment mechanism in the present invention;

[0031] Figure 3 for Figure 2 Schematic diagram of the exploded structure of the moving block, feed plate and limit pin in side view;

[0032] Figure 4 It is a side view structural diagram of the diversion and feeding mechanism in the present invention;

[0033] Figure 5 This is a bottom view of the structure of the diversion and feeding mechanism of the present invention;

[0034] Figure 6 It is a side view structural diagram of the tube pulling mechanism and the clamping mechanism in the present invention;

[0035] Figure 7 Schematic diagram of the side view of the pipe bending mechanism in the present invention;

[0036] Figure 8 It is a front view structural diagram of the pipe pressing mechanism in the present invention.

[0037] Among them, 1. Table; 2. Spacing adjustment mechanism; 201. Cavity; 202. Dual-axis motor; 203. Bearing; 204. Rotating shaft; 205. Threaded rod; 206. Moving block; 207. Feeding plate; 208. Slide; 209. Slider; 2010. Positioning slot; 2011. Limit pin; 2012. Fixed ring; 3. Diversion feeding mechanism; 301. Guide plate; 302. Pin; 303. Limiting frame; 304. Fixed block; 305. First electric push rod; 306. Support rod; 4. Tube pulling mechanism; 401. First hydraulic cylinder; 402. First hydraulic rod ;403, support seat; 5, clamping mechanism; 501, support block; 502, second electric push rod; 503, connecting plate; 504, clamping block; 505, round block; 6, bending mechanism; 601, second hydraulic cylinder; 602, second hydraulic rod; 603, concave plate; 604, bending column; 7, pipe pressing mechanism; 701, fixing frame; 702, third hydraulic cylinder; 703, third hydraulic rod; 704, pressing plate; 705, first screw; 8, baffle; 9, pedestal; 10, support leg; 11, fixing plate; 12, second screw; 13, guide column; 14, storage box. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the specific embodiments of the present invention to clearly and completely describe the technical solutions in the specific embodiments of the present invention. Obviously, the specific embodiments described are only part of the specific embodiments of the present invention, rather than all the specific embodiments. Based on the specific embodiments of the present invention, all other specific embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific implementation 1:

[0040] like Figure 1 、 Figure 2 and Figure 3 As shown, a specific embodiment of the present invention provides a U-shaped electric heating tube processing feeding mechanism, including a table 1, a spacing adjustment mechanism 2, a flow guide feeding mechanism 3, a tube pulling mechanism 4, a clamping mechanism 5, a tube bending mechanism 6 and a tube pressing mechanism 7. The spacing adjustment mechanism 2 includes a cavity 201 opened on the top of the table 1, and a dual-axis motor 202 is fixedly installed inside the cavity 201 through a mounting plate. Bearings 203 are fixedly connected to both sides of the inner wall of the cavity 201. The interiors of the two bearings 203 are rotatably connected to a rotating shaft 204. One end of the two rotating shafts 204 The two threaded rods 205 are fixedly connected, one end of the two threaded rods 205 is fixedly connected to the two output shafts of the dual-axis motor 202, the surfaces of the two threaded rods 205 are threadedly connected to the moving blocks 206, the interiors of the two moving blocks 206 are plugged with feeding plates 207, the interiors of the moving blocks 206 and the interiors of the feeding plates 207 are provided with positioning grooves 2010, there are four positioning grooves 2010, the interiors of the two groups of positioning grooves 2010 are plugged with limiting pins 2011, and the surfaces of the two limiting pins 2011 are fixedly connected to the fixing rings 201 2. Both sides of the two moving blocks 206 are fixedly connected with sliders 209. Both sides of the inner wall of the cavity 201 are provided with slide grooves 208. There are four slide grooves 208. The sliders 209 are slidably connected in the slide grooves 208. The thread directions of the two threaded rods 205 are opposite. By setting the spacing adjustment mechanism 2, the core components can be integrated into the cavity 201 opened on the top of the table 1. The dual-axis motor 202 is firmly fixed in the cavity 201 through the mounting plate. Its power output end is connected to the rotating shaft 204, and the rotating shaft 204 is connected to the cavity through the bearing 203. The inner walls on both sides of 201 are rotatably connected to ensure the stability and low friction of the rotation. Driven by the dual-axis motor 202, the two rotating shafts 204 synchronously drive the threaded rod 205 to rotate. The moving block 206 threadedly connected to the threaded rod 205 moves straight along the threaded rod 205 under the action of the rotational force. In order to accurately control the position of the moving block 206, four positioning grooves 2010 are provided inside the moving block 206 and the feeding plate 207. By inserting the limit pin 2011 and fixing it with the fixing ring 2012, the spacing of the feeding plates 207 can be quickly and accurately adjusted.

[0041] according to Figure 1 、 Figure 4 、 Figure 5 and Figure 6 As shown, the diversion feeding mechanism 3 includes guide plates 301 fixedly connected to the sides of the two feeding plates 207, the interiors of the two guide plates 301 are movably connected with pins 302, the surfaces of the two pins 302 are fixedly connected to the limiting frames 303, the sides of the two feeding plates 207 are fixedly connected with fixed blocks 304, the interiors of the two fixing blocks 304 are fixedly installed with first electric push rods 305, the surfaces of the two first electric push rods 305 are fixedly connected with support rods 306, the two ends of the support rods 306 are fixedly connected to the inner walls of the limiting frames 303, the diversion feeding mechanism 3 is installed on the sides of the two feeding plates 207, and the guide plates 301, pins 302, limiting frames 303, fixed blocks 304, first electric push rods 305 and support rods 306 work together, the guide plates 301 are fixedly connected to the feeding plates 207, and the pins 302 are movably connected to the inside of the guide plates 301 , so that the limit frame 303 can rotate flexibly around the pin shaft 302, and the first electric push rod 305 is installed in the fixed block 304, and its telescopic action is transmitted to the limit frame 303 through the support rod 306, thereby adjusting the inclination angle of the limit frame 303, realizing precise guidance of the feeding path of the U-shaped electric heating tube, and effectively avoiding the deviation or jamming of the pipe during the feeding process. The pipe pulling mechanism 4 includes a first hydraulic cylinder 401 fixedly mounted on the top of the table 1, and a first hydraulic rod 402 is fixedly mounted inside the first hydraulic cylinder 401, and one end of the first hydraulic rod 402 is fixedly connected to the support seat 403. The pipe pulling mechanism 4 consists of the first hydraulic cylinder 401 fixed on the top of the table 1 and the first hydraulic rod 402 inside it. The telescopic movement of the first hydraulic rod 402 can drive the support seat 403 to move in direction, providing a stable displacement function for subsequent pipe clamping and processing, and ensuring that the pipe is in a suitable processing position.

[0042] according to Figure 1 、 Figure 6 and Figure 7As shown, the clamping mechanism 5 includes support blocks 501 fixedly connected to both sides of the support seat 403, and second electric push rods 502 are fixedly installed inside the two support blocks 501. One end of the two second electric push rods 502 is fixedly connected to a connecting plate 503, and the sides of the two connecting plates 503 are fixedly connected to clamping blocks 504. The top of the support seat 403 is fixedly connected to a round block 505. The clamping mechanism 5 is installed on the support seat 403. The second electric push rods 502 in the support blocks 501 on both sides push the connecting plate 503 and the clamping block 504 to move, thereby achieving the clamping and loosening of the pipe. The round block 505 on the top of the support seat 403 provides auxiliary support for the pipe, enhances the clamping stability, and also plays a role in bending the pipe. The industry is assisted to ensure that the pipe will not shake or move during the processing. The pipe bending mechanism 6 includes a second hydraulic cylinder 601 fixedly installed on the top of the table 1. There are two second hydraulic cylinders 601. The inside of the two second hydraulic cylinders 601 is fixedly installed with a second hydraulic rod 602. One end of the two second hydraulic rods 602 is fixedly connected to a concave plate 603. The inside of the two concave plates 603 is fixedly connected with a bending column 604. The pipe bending mechanism 6 includes two second hydraulic cylinders 601 fixed on the top of the table 1. The second hydraulic rod 602 drives the concave plate 603 and the bending column 604 to move. Through the cooperative extrusion of the two bending columns 604, the bending forming processing of the U-shaped electric heating tube is realized. The structure is simple and the forming precision is high.

[0043] according to Figure 1 and Figure 8As shown, the tube pressing mechanism 7 includes a fixing frame 701 overlapped on the top of the table 1, the interior of the fixing frame 701 is connected to the interior of the table 1 by a first screw 705, there are two first screws 705, the interior of the fixing frame 701 is fixedly installed with a third hydraulic cylinder 702, the interior of the third hydraulic cylinder 702 is fixedly installed with a third hydraulic rod 703, the bottom end of the third hydraulic rod 703 is fixedly connected with a pressing plate 704, the tube pressing mechanism 7 fixes the fixing frame 701 to the table 1 through the first screw 705, the third hydraulic cylinder 702 and the third hydraulic rod 703 in the fixing frame 701 drive the pressing plate 704 to move up and down, and press the U-shaped electric heating tube after it is processed to facilitate the U-shaped electric heating tube to fall on the guide column 13, and the interior of the cavity 201 is fixed by studs A baffle 8 is installed, and a base 9 is fixedly connected to the bottom of the table 1. The bottom of the base 9 is fixedly connected to a supporting leg 10, and there are four supporting legs 10. The side of the base 9 is fixedly connected to a storage box 14. The baffle 8 is fixedly installed inside the cavity 201 by studs to prevent the internal components from being disturbed by external debris. The base 9, supporting legs 10 and storage box 14 on the side of the table 1 provide stable support and pipe storage functions respectively. A fixed plate 11 is overlapped on the side of the table 1. The inside of the fixed plate 11 is threadedly connected to the inside of the table 1 by a second screw 12. There are two second screws 12. The side of the fixed plate 11 is fixedly connected to a guide column 13. The fixed plate 11 and the guide column 13 fixed to the side of the table 1 by the second screw 12 can provide guiding assistance for pipe transportation.

[0044] Working principle: First, according to the size of the U-shaped electric heating tube, the dual-axis motor 202 is operated. Since the threaded directions of the two threaded rods 205 are opposite, the threaded rods 205 on both sides rotate synchronously in opposite directions under the drive of the dual-axis motor 202, driving the threaded connected moving blocks 206 to move toward or away from each other along the threaded rods 205, thereby adjusting the spacing between the feeding plates 207. After the adjustment is completed, the personnel can place the pipe on the guide plate 301 and drop it into the limit frame 303. Then, the first electric push rod 305 is operated, and the limit frame 303 is driven to rotate around the pin shaft 302 through the support rod 306 to adjust the inclination angle of the limit frame 303 to form a guide channel that meets the pipe transportation requirements. Under the action of gravity and subsequent thrust, the pipe falls along the channel composed of the guide plate 301 and the limit frame 303 to the middle area between the support block 501 and the round block 505 on the support seat 403, and then, through the second electric push rod 305, the pipe falls to the middle area between the support block 501 and the round block 505 on the support seat 403. The push rod 502 is operated, thereby causing the connecting plate 503 to drive the clamping block 504 to fix the pipe. After that, the first hydraulic cylinder 401 is operated, thereby causing the first hydraulic rod 402 to drive the pipe on the support seat 403 to move to the pipe bending mechanism 6 area, and causing the pipe bending column 604 to perform preliminary bending on the pipe. Then, the second hydraulic cylinder 601 is operated, thereby causing the second hydraulic rod 602 to drive the pipe bending column 604 in the concave plate 603 to perform secondary bending on the pipe and bend it into a finished product. After the pipe bending is completed, the first hydraulic rod 402 moves the formed pipe to the pipe pressing mechanism 7 area, and then the clamping block 504 is loosened and away from the formed pipe. After that, the third hydraulic cylinder 702 is operated, thereby causing the third hydraulic rod 703 to drive the pressing plate 704 to press down the formed pipe and press the formed pipe down on the guide column 13. Finally, the formed pipe will fall into the storage box 14 along the guide column 13.

[0045] Finally, when it is necessary to inspect the components in the cavity 201 of the spacing adjustment mechanism 2, unscrew the stud to remove the baffle 8, then use the fixing ring 2012 to rotate the limit pin 2011 and move it out of the positioning groove 2010, and then remove the two feed plates 207, and then inspect the components in the cavity 201.

[0046] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these specific embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A U-shaped electric heating tube processing and feeding mechanism, comprising a platen (1), a spacing adjustment mechanism (2), a flow guiding and feeding mechanism (3), a tube pulling mechanism (4), a clamping mechanism (5), a tube bending mechanism (6) and a tube pressing mechanism (7), characterized in that: The spacing adjustment mechanism (2) comprises a cavity (201) opened on the top of the table (1), a dual-axis motor (202) is fixedly installed inside the cavity (201) through a mounting plate, bearings (203) are fixedly connected to both sides of the inner wall of the cavity (201), a rotating shaft (204) is rotatably connected inside the two bearings (203), one end of the two rotating shafts (204) is fixedly connected to a threaded rod (205), one end of the two threaded rods (205) is fixedly connected to the two output shafts of the dual-axis motor (202), the surfaces of the two threaded rods (205) are threadedly connected to a moving block (206), and the interiors of the two moving blocks (206) are plugged with a feeding screw. The material plate (207) is provided with positioning grooves (2010) inside the moving block (206) and the feeding plate (207), and there are four positioning grooves (2010). Limiting pins (2011) are inserted into the interiors of the two groups of positioning grooves (2010), and the surfaces of the two limiting pins (2011) are fixedly connected with fixing rings (2012). Both sides of the two moving blocks (206) are fixedly connected with sliders (209). Both sides of the inner wall of the cavity (201) are provided with sliding grooves (208), and there are four sliding grooves (208). The sliders (209) are slidably connected in the sliding grooves (208), and the thread directions of the two threaded rods (205) are opposite.

2. A U-shaped electric heating tube processing feeding mechanism according to claim 1, characterized in that: The diversion feeding mechanism (3) comprises guide plates (301) fixedly connected to the sides of two feeding plates (207); the interiors of the two guide plates (301) are movably connected with pin shafts (302); the surfaces of the two pin shafts (302) are fixedly connected to a limiting frame (303); the sides of the two feeding plates (207) are fixedly connected with fixed blocks (304); the interiors of the two fixed blocks (304) are fixedly installed with first electric push rods (305); the surfaces of the two first electric push rods (305) are fixedly connected with support rods (306); and the two ends of the support rods (306) are fixedly connected to the inner walls of the limiting frame (303).

3. A U-shaped electric heating tube processing feeding mechanism according to claim 1, characterized in that: The pipe pulling mechanism (4) comprises a first hydraulic cylinder (401) fixedly mounted on the top of the platform (1); a first hydraulic rod (402) is fixedly mounted inside the first hydraulic cylinder (401); one end of the first hydraulic rod (402) is fixedly connected to a support seat (403).

4. A U-shaped electric heating tube processing feeding mechanism according to claim 3, characterized in that: The clamping mechanism (5) comprises support blocks (501) fixedly connected to both sides of the support seat (403), second electric push rods (502) are fixedly installed inside the two support blocks (501), one end of the two second electric push rods (502) are fixedly connected to a connecting plate (503), the sides of the two connecting plates (503) are fixedly connected to clamping blocks (504), and the top of the support seat (403) is fixedly connected to a round block (505).

5. The U-shaped electric heating tube processing feeding mechanism according to claim 1, characterized in that: The pipe bending mechanism (6) comprises a second hydraulic cylinder (601) fixedly mounted on the top of the platform (1), wherein there are two second hydraulic cylinders (601), a second hydraulic rod (602) being fixedly mounted inside the two second hydraulic cylinders (601), one end of each of the two second hydraulic rods (602) being fixedly connected to a concave plate (603), and a pipe bending column (604) being fixedly connected inside the two concave plates (603).

6. A U-shaped electric heating tube processing feeding mechanism according to claim 1, characterized in that: The pipe pressing mechanism (7) includes a fixing frame (701) overlapped on the top of the table (1), the interior of the fixing frame (701) is threadedly connected to the interior of the table (1) by a first screw (705), and there are two first screws (705). A third hydraulic cylinder (702) is fixedly installed inside the fixing frame (701), a third hydraulic rod (703) is fixedly installed inside the third hydraulic cylinder (702), and the bottom end of the third hydraulic rod (703) is fixedly connected to a pressing plate (704).

7. The U-shaped electric heating tube processing feeding mechanism according to claim 1, characterized in that: A baffle (8) is fixedly installed inside the cavity (201) by means of studs, the bottom of the platform (1) is fixedly connected to a pedestal (9), the bottom of the pedestal (9) is fixedly connected to supporting legs (10), there are four supporting legs (10), and the side of the pedestal (9) is fixedly connected to a material storage box (14).

8. The U-shaped electric heating tube processing feeding mechanism according to claim 1, characterized in that: The side of the table (1) is overlapped with a fixing plate (11), the interior of the fixing plate (11) is threadedly connected to the interior of the table (1) by a second screw (12), there are two second screws (12), and the side of the fixing plate (11) is fixedly connected to a guide column (13).

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