Automatic U-shaped boiler pipe bending device

Abstract

The application discloses a U-shaped boiler pipe automatic bending device and belongs to the technical field of pipe bending devices. Mainly including processing table, feeding assembly, bending assembly, auxiliary assembly, supporting plate, variable speed motor, sliding seat, second equipment box and two groups of guide rods, the supporting plate is provided with a first equipment box; the output end of the variable speed motor is provided with a lead screw, the inner wall of the first equipment box is provided with a track, the second equipment box is provided with a stepping motor, the output end of the stepping motor is provided with a bidirectional screw rod, and the bidirectional screw rod is rotatably arranged in the second equipment box; the guide rods are arranged in the second equipment box, two groups of pressing plates are slidably arranged on the guide rods, and the two groups of pressing plates are screwedly installed on the bidirectional screw rod. The U-shaped boiler pipe automatic bending device has the effects that the boiler pipe is separated from the groove after being bent, so that the boiler pipe can be taken out subsequently, and the boiler pipe can be separated from the mold when demolding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe bending device, in particular to a U-shaped boiler pipe automatic pipe bending device. BACKGROUND

[0002] The U-shaped boiler pipe is a special-shaped pipe used in the boiler system, and the pipe body is U-shapedly bent. This design enables the U-shaped boiler pipe to play a specific function in the boiler, such as heat exchange, support or guiding fluid flow, etc. It usually serves as part of the boiler heating surface and participates in the heat transfer and conversion process.

[0003] In the manufacturing process of the U-shaped boiler pipe, pipe bending operation is needed to adapt to the installation space and layout requirements.

[0004] As the patent with publication number CN202683694U specifically discloses a high-speed automatic pipe bending device. The workpiece is fixed on the clamping device, the control switch is turned on, the second motor drives the clamping device to move forward, the workpiece enters the guide channel, and the fixed block presses the workpiece. At this time, the first motor drives the rotating block to rotate, and the guide block and the rotating block rotate around the guide wheel at the same time, thereby driving the workpiece to bend.

[0005] However, the above-mentioned patent can realize the bending operation of the boiler pipe, but when the boiler pipe is taken out after bending, the boiler pipe is always pressed on the bending part by the fixed block, which may cause the boiler pipe and the bending part to be clamped together. At this time, the staff needs to repeatedly shake the steel pipe left and right to separate it from the mold, and simultaneously push it out of the mold to take it out, which makes it difficult to demold.

[0006] Therefore, it is necessary to provide a U-shaped boiler pipe automatic pipe bending device to solve the above-mentioned problems.

[0007] It should be noted that the above information disclosed in this background section is only used to understand the background technology of the present application concept, and therefore, it can contain information that does not constitute prior art. SUMMARY

[0008] Based on the above-mentioned problems existing in the prior art, the present application solves the problem of providing a U-shaped boiler pipe automatic pipe bending device to separate the boiler pipe from the mold during demolding.

[0009] The technical scheme adopted by the application to solve its technical problems is: a U-shaped boiler pipe automatic pipe bending device, comprising a machining table; a feeding assembly provided on the machining table; a bending assembly provided on the machining table, the bending assembly having a mounting frame adapted for mounting; an auxiliary assembly provided on the bending assembly, the auxiliary assembly comprising: a support plate mounted on one side of the mounting frame, a first equipment box being mounted on the support plate; a variable speed motor mounted on the first equipment box, a lead screw being mounted on the output end of the variable speed motor, the lead screw being rotatably mounted in the first equipment box; a sliding seat being threadedly mounted on the lead screw, an inner wall of the first equipment box being provided with a track, the sliding seat being slidingly arranged on the track; a second equipment box being mounted on the sliding seat, a stepping motor being mounted on the second equipment box, a bidirectional screw being mounted on the output end of the stepping motor, the bidirectional screw being rotatably mounted in the second equipment box; two groups of guide rods being mounted in the second equipment box, two groups of pressing plates being slidingly arranged on the guide rods, the two groups of pressing plates being threadedly mounted on the bidirectional screw.

[0010] Further, an opening is formed in the second equipment box, one end of the two groups of pressing plates passes through the opening, the track is located on one side of the lead screw, two groups of through grooves are formed in the first equipment box, one end of the sliding seat passes through the two groups of through grooves.

[0011] Further, the feeding assembly comprises a moving module mounted on the machining table, a protective shell is mounted on the output end of the moving module, a hollow pipe is mounted in the protective shell, and a clamping jaw is arranged at the end of the hollow pipe away from the protective shell.

[0012] Further, the bending assembly comprises a mounting plate mounted at one end of the machining table, a mounting plate is mounted on the mounting plate, and a fixing box is mounted on the mounting plate.

[0013] Further, a rotating shaft is rotatably mounted on the fixing box, a driving motor is mounted on the bottom of the fixing box, and a synchronous belt set is drivingly arranged on the rotating shaft and the output end of the driving motor, the synchronous belt set being located in the interior of the fixing box.

[0014] Further, the mounting frame is mounted on the rotating shaft, a horizontal plate is mounted in the interior of the mounting frame, a connecting plate is slidingly arranged on the top of the horizontal plate, a top plate is mounted at one end of the connecting plate, a second pneumatic push rod is mounted on the bottom of the horizontal plate, and the output end of the second pneumatic push rod is connected with the top plate.

[0015] Further, a support seat is mounted on the connecting plate, a top block is mounted on one side of the support seat, a bending part is mounted on the rotating shaft, the top block is correspondingly arranged with the two groups of bending parts, a groove is arranged on the outer circumferential surface of the bending part, the bending part is in U shape, and a clamping groove is arranged on the top block.

[0016] Further, the bending part is provided with an electric cylinder, and the output end of the electric cylinder is provided with a push plate located at one side of the bending part.

[0017] Further, one side of the fixed box is provided with a mounting box, the mounting box is slidably provided with a sliding block, the inside of the mounting box is provided with a first pneumatic push rod, the output end of the first pneumatic push rod is connected with the sliding block, and the top of the sliding block is provided with a bottom plate.

[0018] Further, the mounting seat is provided with a pneumatic cylinder, the output end of the pneumatic cylinder is provided with a connecting seat, the connecting seat is provided with a backing plate, one side of the backing plate is provided with two groups of guide rails, the two groups of guide rails are slidably arranged on one side of the mounting seat, and the other side of the backing plate is provided with a clamping plate.

[0019] The U-shaped boiler pipe automatic bending device has the advantages that the auxiliary assembly is arranged, the boiler pipe is separated from the groove after being bent, the boiler pipe is convenient to take out, and the boiler pipe is separated from the mold during demolding.

[0020] In addition to the objects, features, and advantages described above, the present application has other objects, features, and advantages. The present application will be described in further detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the application, and together with the description, explain the application. In the drawings:

[0022] Figure 1 is a schematic diagram of the whole U-shaped boiler pipe automatic bending device;

[0023] Figure 2 is Figure 1 is an enlarged schematic diagram of A in FIG. 4;

[0024] Figure 3 is Figure 2 is an enlarged schematic diagram of B in FIG. 4;

[0025] Figure 4 is Figure 2 is a partial sectional view of part of the structure in FIG. 4;

[0026] Figure 5 is Figure 4 is an enlarged schematic diagram of C in FIG. 4;

[0027] Figure 6 is Figure 1Partial structural schematic view from another perspective;

[0028] Figure 7 As Figure 6 Enlarged schematic view at D in Fig.

[0029] Figure 8 As Figure 1 Overall schematic view from another state in Fig.

[0030] Figure 9 As Figure 8 Enlarged schematic view at E in Fig.

[0031] Figure 10 As Figure 1 Top view schematic view of partial structure in Fig.

[0032] Figure 11 As Figure 1 Side view schematic view of partial structure in Fig.

[0033] In the drawings, various reference numbers refer to components that perform the same or similar functions. Generally, the second digits or latter part of reference numbers refer to the drawings and the first digits or former part of reference numbers refer to the components in the drawings.

[0034] 1, processing table;

[0035] 2, feeding assembly; 21, moving module; 22, protective shell; 23, hollow pipe; 24, clamping jaw;

[0036] 3, bending assembly; 31, bending part; 301, groove; 32, guide rail; 321, clamping plate; 33, backing plate; 34, air cylinder; 35, fixed box; 36, mounting seat; 361, bottom plate; 37, mounting plate; 38, mounting box; 39, sliding block;

[0037] 4, connecting seat; 41, mounting frame; 42, top plate; 43, rotating shaft; 44, connecting plate; 45, support seat; 46, top block; 461, clamping groove; 47, driving motor; 48, synchronous belt set;

[0038] 5, auxiliary assembly; 51, first auxiliary part; 501, first equipment box; 52, variable speed motor; 521, support plate; 53, through slot; 54, sliding seat; 541, screw rod; 542, track; 55, second equipment box; 56, stepping motor; 57, pressing plate; 58, guide rod; 59, bidirectional screw rod; 510, electric cylinder; 511, push plate;

[0039] 6, support frame; 61, fixed plate; 62, second auxiliary part. DETAILED DESCRIPTION

[0040] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with embodiments.

[0041] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0042] Example 1: As Figures 1-2 As shown, this application provides an automatic U-shaped boiler tube bending device, including a processing table 1, on which a feeding assembly 2 is provided. The feeding assembly 2 is used to clamp the boiler tube, specifically:

[0043] The feeding assembly 2 includes a moving module 21 fixedly installed on the processing table 1. The moving module 21 uses the existing ball screw and linear guide 32 as the transmission mechanism and the drive device as the power source. The drive device can be an electric motor or a hydraulic motor. The specific structure and working principle are existing technologies and will not be described in detail here.

[0044] A protective shell 22 is fixedly installed on the output end of the moving module 21, and a hollow tube 23 is fixedly installed inside the protective shell 22. A clamp 24 is provided at the end of the hollow tube 23 away from the protective shell 22 so that the boiler tube to be processed can be passed through the hollow tube 23 and clamped by the clamp 24. One end of the clamped boiler tube extends out of the clamp 24, so that the boiler tube can be driven by the moving module 21 to move in the horizontal direction, and then the extended part of the boiler tube can be sent into the subsequent bending process.

[0045] For ease of explanation, the direction of movement of the moving module 21 is defined as the Y direction, i.e., as shown below. Figure 1 The left and right directions are shown;

[0046] A bending assembly 3 is provided at one end of the processing table 1. The bending assembly 3 is used for bending boiler tubes.

[0047] like Figures 1-2 and Figure 6 As shown, the bending assembly 3 includes a mounting plate 37 fixedly installed at one end of the processing table 1. A fixed box 35 is fixedly installed on the mounting plate 37. A rotating shaft 43 is rotatably installed on the fixed box 35. A drive motor 47 is fixedly installed at the bottom of the fixed box 35. A synchronous belt group 48 is provided between the output end of the drive motor 47 and the rotating shaft 43. The synchronous belt group 48 is located inside the fixed box 35 so that the rotating shaft 43 can be driven to rotate by the synchronous belt group 48 under the drive of the drive motor 47.

[0048] Meanwhile, the mounting rack 41 is fixedly installed on the rotating shaft 43, and can rotate synchronously with the rotating shaft 43;

[0049] Meanwhile, a horizontal plate (not shown in the figure) is fixedly installed inside the mounting rack 41, the top of the horizontal plate is slidably provided with a connecting plate 44, one end of the connecting plate 44 is fixedly installed with a top plate 42, meanwhile, a second pneumatic push rod (not shown in the figure) is fixedly installed at the bottom of the horizontal plate, the output end of the second pneumatic push rod is connected with the top plate 42, so as to drive the connecting plate 44 to move through the top plate 42 under the driving of the second pneumatic push rod;

[0050] As shown in Figure 2 , Figure 5 and Figure 11 , a supporting seat 45 is fixedly installed on the connecting plate 44, one side of the supporting seat 45 is fixedly installed with a top block 46, a bending part 31 is fixedly installed on the rotating shaft 43, the top block 46 and the bending part 31 correspond to each other, the outer circumferential surface of the bending part 31 is provided with a groove 301, and a clamping groove 461 adapted to the boiler pipe is arranged on the top block 46;

[0051] Further, when the connecting plate 44 moves, the supporting seat 45 synchronously drives the top block 46 to move close to or away from the bending part 31, and when the top block 46 moves close to the bending part 31, a circle (as shown in Figure 11 ) suitable for clamping the boiler pipe is formed with the groove 301;

[0052] Meanwhile, the outer circle of the bending part 31 is U-shaped, so as to match the bent boiler pipe, thereby ensuring the shape of the bent boiler pipe;

[0053] In the initial state, the top block 46 is away from the bending part 31, when the boiler pipe clamped by the feeding assembly 2 passes between the clamping groove 461 and the groove 301, the second pneumatic push rod drives the connecting plate 44 to move through the top plate 42, thereby driving the top block 46 to move close to the groove 301 to clamp the boiler pipe, then the driving motor 47 is started, the rotating shaft 43 is driven to rotate 180° through the synchronous belt set 48, thereby driving the mounting rack 41 to synchronously rotate 180°, further driving the top block 46 and the bending part 31 to rotate along the axis of the rotating shaft 43, since the boiler pipe is clamped by the top block 46 and the bending part 31 at this time, the clamped part of the boiler pipe will synchronously rotate, thereby making the boiler pipe deform along the outer circle of the bending part 31, and finally bent into the required U-shaped;

[0054] A mounting box 38 is fixedly installed on one side of the fixing box 35, a sliding block 39 is slidably arranged on the mounting box 38, a first pneumatic push rod (not shown in the figure) is arranged inside the mounting box 38, the output end of the first pneumatic push rod is connected with the sliding block 39, a bottom plate 361 is fixedly installed on the top of the sliding block 39, and a mounting seat 36 is fixedly arranged on the top of the bottom plate 361;

[0055] In order to facilitate the movement of the sliding block 39 on the mounting box 38 under the drive of the first pneumatic push rod, and synchronously drive the mounting seat 36 to move, for the convenience of illustration, the extension direction of the first pneumatic push rod is defined as the X direction;

[0056] Meanwhile, the air cylinder 34 is fixedly installed on the mounting seat 36, which extends along the Y direction, and the connecting seat 4 is fixedly installed on the output end of the air cylinder 34, and the backing plate 33 is fixedly installed on the connecting seat 4, and one side of the backing plate 33 is fixedly installed with two groups of guide rails 32 arranged along the Y direction, and the guide rails 32 are slidingly arranged on one side of the mounting seat 36;

[0057] In order to facilitate the movement of the backing plate 33 along the Y direction under the drive of the air cylinder 34 through the connecting seat 4, and synchronously drive the guide rails 32 to slide on one side of the mounting seat 36;

[0058] As shown in Figure 10 The clamping plate 321 is fixedly installed on the other side of the backing plate 33, which is located on one side of the top block 46, and the arc groove adapted to the boiler pipe is formed in the clamping plate 321, so that the clamping plate 321 is synchronously moved when the backing plate 33 moves;

[0059] In the initial state, the clamping plate 321 is away from the bending part 31 in the X direction, and when the top block 46 approaches the bending part 31 and clamps the boiler pipe, the clamping plate 321 is synchronously close to the bending part 31 under the drive of the first pneumatic push rod, until the sliding groove of the clamping plate 321 is engaged on the boiler pipe;

[0060] When the driving motor 47 drives the top block 46 and the bending part 31 to gradually rotate 180° to bend the boiler pipe, at this time the clamping plate 321 is synchronously gradually close to the bending part 31 along the Y direction under the drive of the air cylinder 34, until one end of the clamping plate 321 is flush with one end of the bending part 31, so that the boiler pipe is always pressed by the clamping plate 321 when bending, avoiding excessive bending to cause damage;

[0061] As described above, when bending, the boiler pipe penetrates the hollow pipe 23 and is clamped by the clamping jaw 24, and then the moving module 21 is started to pass one end of the boiler pipe between the top block 46 and the groove 301, and then the second pneumatic push rod is started to drive the top block 46 to gradually approach the bending part 31 to clamp the boiler pipe;

[0062] Then start the first pneumatic push rod to drive the clamping plate 321 to gradually approach the boiler pipe in the X direction, until the arc groove on the clamping plate 321 is engaged on the boiler pipe, at this time start the driving motor 47 to drive the rotating shaft 43 to rotate through the synchronous belt group 48, thereby driving the mounting frame 41 to gradually rotate 180°, and synchronously driving the bending part 31 and the top block 46 to gradually rotate 180°, thereby bending the boiler pipe 180° to make it U-shaped Figure 9 ;

[0063] And the cylinder 34 starts, drive the clamp plate 321 in Y direction synchronous movement, to the pipe always pressing, avoid its excessive bending and damage the boiler pipe;

[0064] After bending, the second pneumatic push rod drives the top block 46 away from the boiler pipe, the first pneumatic push rod drives the clamp plate 321 away from the boiler pipe, and then pushes the end of the boiler pipe bent along the Y direction out of the groove 301.

[0065] Example two: the above process can realize the bending operation of the boiler pipe, but because the boiler pipe is always pressed in the groove 301 of the bending part 31 during the bending process, it may cause the boiler pipe and the groove 301 of the bending part 31 to be clamped together, at this time the staff needs to shake the steel pipe left and right repeatedly to make it separate from the mold, and at the same time push it out of the mold to take out, which makes it more difficult to demold;

[0066] In order to solve this problem, an auxiliary assembly 5 is arranged on the bending assembly 3, which is used for the separation operation of the boiler pipe and the groove 301;

[0067] As shown in Figure 1 and Figures 3-5 The auxiliary assembly 5 includes a support plate 521 fixedly installed on one side of the mounting frame 41, and the support plate 521 is provided with a first auxiliary part 51, and the first auxiliary part 51 is a certain distance away from the mounting frame 41, and the first auxiliary part 51 includes a first equipment box 501 fixedly installed on the support plate 521, and the first equipment box 501 is located on one side of the lower top block 46, and one end of the first equipment box 501 is fixedly installed with a variable speed motor 52, and the output end of the variable speed motor 52 is fixedly installed with a lead screw 541, and the lead screw 541 is rotatably installed in the first equipment box 501, and the lead screw 541 is threadedly installed with a sliding seat 54;

[0068] A track 542 is fixedly installed on the side wall of the first equipment box 501, the track 542 is located on one side of the lead screw 541, and the sliding seat 54 is slidably arranged on the track 542, so that under the drive of the variable speed motor 52, the lead screw 541 is driven to rotate, so as to drive the sliding seat 54 to move along the axis of the lead screw 541, and the movement direction of the sliding seat 54 is limited under the limitation of the track 542;

[0069] Continue to refer to Figure 5Two groups of through grooves 53 are formed on the first equipment box 501, one end of the sliding seat 54 passes through the two groups of through grooves 53, and a second equipment box 55 is fixedly installed at the end of the sliding seat 54 passing through the through grooves 53, the second equipment box 55 is fixedly installed with a stepping motor 56, the output end of the stepping motor 56 is fixedly installed with a bidirectional screw rod 59, the bidirectional screw rod 59 is rotatably installed in the second equipment box 55, the bidirectional screw rod 59 is threadedly installed with two groups of pressing plates 57, and the second equipment box 55 is fixedly installed with two groups of guide rods 58, and the two groups of guide rods 58 are located on the two sides of the bidirectional screw rod 59;

[0070] It should be noted that the second equipment box 55 is provided with an opening (not labeled in the figure), one end of the two groups of pressing plates 57 passes through the opening to avoid interference with the movement thereof, and the two groups of pressing plates 57 are located on one side of the lower top block 46, so that the bidirectional screw rod 59 is driven to rotate under the drive of the stepping motor 56, so as to drive the two groups of pressing plates 57 to move closer to or away from each other along the axis of the bidirectional screw rod 59, and when the two groups of pressing plates 57 move closer to each other, they can be wrapped around the outer circle of the boiler pipe, and the movement direction is fixed under the limitation of the two groups of guide rods 58;

[0071] As described above, in the initial state, the two groups of pressing plates 57 are away from each other, and the two groups of pressing plates 57 are away from the bent portion 31, so as to avoid mechanical interference when the feeding assembly 2 passes the boiler pipe through the gap between the clamping groove 461 and the groove 301, and at this time the boiler pipe is located between the two groups of pressing plates 57;

[0072] When the boiler pipe is clamped on the groove 301 after the boiler pipe is bent and the top block 46 and the clamping plate 321 are reset, the stepping motor 56 is started to drive the bidirectional screw rod 59 to rotate, thereby driving the two groups of pressing plates 57 to move closer to each other for covering, so as to be wrapped around the outer circle of the boiler pipe, and at this time there is a gap between the side walls of the two groups of pressing plates 57 and the boiler pipe;

[0073] Subsequently, the variable speed motor 52 is started to drive the screw rod 541 to rotate at a constant speed, thereby driving the sliding seat 54 to move along the axis of the screw rod 541, driving the second equipment box 55 to gradually move away from the bent portion 31, thereby gradually moving the side walls of the two groups of pressing plates 57 to the boiler pipe;

[0074] When the side walls of the two groups of pressing plates 57 abut against the outer circumferential surface of the boiler pipe, the variable speed motor 52 is varied in speed to drive the screw rod 541 to rotate slowly, so that the two groups of pressing plates 57 slowly pull the boiler pipe, thereby moving the boiler pipe away from the groove 301, so that the boiler pipe and the groove 301 are slowly separated, avoiding that the boiler pipe and the groove 301 are too tightly attached to affect the subsequent separation;

[0075] It should be noted that the distance by which the two groups of pressing plates 57 drive the boiler pipe to move should not be too large, so as to prevent damage to the boiler pipe;

[0076] After the two sets of pressure plates 57 move the boiler tube a certain distance, the variable speed motor 52 moves in the opposite direction so that the two sets of pressure plates 57 separate from the side wall of the boiler tube. At this time, although the boiler tube will be reset under the action of internal stress, due to the previous pulling action, there is a certain gap between the boiler tube and the groove 301. At this time, the boiler tube is pushed out of the groove 301 along the Y direction and then the boiler tube is taken out.

[0077] After the boiler tube is removed, the stepper motor 56 starts and drives the bidirectional screw 59 to rotate in the opposite direction, which in turn drives the two sets of pressure plates 57 to move away from each other. The variable speed motor 52 continues to drive the lead screw 541 to rotate, which drives the second equipment box 55 to reset, so as to avoid interference with the feeding of the boiler tube during the next boiler tube bending operation.

[0078] It should be noted that a support frame 6 is fixedly installed on the fixed box 35. The support frame 6 is located on the other side of the top block 46. A fixed plate 61 is fixedly installed on the top of the support frame 6. A second auxiliary part 62 with the same structure as the first auxiliary part 51 is provided on the fixed plate 61 so that after bending, the two ends of the U-shaped boiler tube can be separated from the groove 301 for easier removal.

[0079] Although the above process can separate the bent boiler tube from the groove 301, manual separation is still required when pushing the boiler tube out of the groove 301 along the Y direction. Furthermore, the length of the boiler tube extending out of the groove 301 cannot be controlled when feeding the boiler tube, which makes it impossible to control the position where the bending occurs when bending the boiler tube, i.e., the position where the top block 46 is clamped on the boiler tube.

[0080] To solve this problem, such as Figure 2 As shown, an electric cylinder 510 is fixedly installed on the bending part 31. The output end of the electric cylinder 510 is provided with a push plate 511. The push plate 511 is located on one side of the bending part 31 and is on the same axis as the axis of the groove 301.

[0081] So that when the boiler tube is fed by the feeding assembly 2, one end of the boiler tube can be blocked, and the length of the extension of the electric cylinder 510 can be controlled to control the distance between the push plate 511 and the bending part 31, thereby controlling the length of the boiler tube extending out of the bending part 31, and thus controlling the position of the top block 46 clamped on the boiler tube.

[0082] Furthermore, after the auxiliary component 5 separates the boiler tube from the groove 301, the electric cylinder 510 is activated to drive the push plate 511 to push the boiler tube out of the groove 301 along the Y direction, thereby avoiding the need for manual removal by the staff.

[0083] The above descriptions are only the preferred embodiments of the present application, and are not intended to limit the present application. The present application can have various modifications and changes for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic U-shaped boiler tube bending device, characterized in that: include: Processing table (1); A feeding assembly (2) is disposed on the processing table (1); A bending assembly (3) is disposed on the processing table (1) and the bending assembly (3) has a mounting bracket (41) suitable for installation. Auxiliary component (5), which is disposed on the bending component (3), includes: A support plate (521) is mounted on one side of the mounting bracket (41). A first auxiliary part (51) is provided on the support plate (521). The first auxiliary part (51) includes a first device box (501) mounted on the support plate (521). A variable speed motor (52) is mounted on the first equipment box (501), and a lead screw (541) is mounted on the output end of the variable speed motor (52). The lead screw (541) is rotatably mounted inside the first equipment box (501). A slide (54) is threaded onto the lead screw (541), and a track (542) is installed on the inner wall of the first equipment box (501). The slide (54) is slidably disposed on the track (542). The second device box (55) is mounted on the slide (54). A stepper motor (56) is mounted on the second device box (55). A bidirectional screw (59) is mounted on the output end of the stepper motor (56). The bidirectional screw (59) is rotatably mounted inside the second device box (55). Two sets of guide rods (58) are installed inside the second equipment box (55). Two sets of pressure plates (57) are slidably arranged on the guide rods (58). The two sets of pressure plates (57) are threaded onto the bidirectional screw (59). The bending assembly (3) includes a mounting plate (37) installed at one end of the processing table (1), and a fixing box (35) is installed on the mounting plate (37). A rotating shaft (43) is rotatably mounted on the fixed box (35), and a drive motor (47) is mounted on the bottom of the fixed box (35). A synchronous belt group (48) is provided between the output end of the drive motor (47) and the rotating shaft (43). The synchronous belt group (48) is located inside the fixed box (35). The mounting bracket (41) is mounted on the rotating shaft (43). A horizontal plate is installed inside the mounting bracket (41). A connecting plate (44) is slidably arranged on the top of the horizontal plate. A top plate (42) is installed at one end of the connecting plate (44). A second pneumatic push rod is installed at the bottom of the horizontal plate. The output end of the second pneumatic push rod is connected to the top plate (42). A support base (45) is installed on the connecting plate (44), a top block (46) is installed on one side of the support base (45), a bending part (31) is installed on the rotating shaft (43), the top block (46) and the bending part (31) correspond to each other, a groove (301) is provided on the outer peripheral surface of the bending part (31), the bending part (31) is U-shaped, and a slot (461) is provided on the top block (46). An electric cylinder (510) is installed on the bending part (31). A push plate (511) is provided at the output end of the electric cylinder (510). The push plate (511) is located on one side of the bending part (31). A support frame (6) is installed on the fixing box (35). The support frame (6) is located on one side of the top block (46). A fixing plate (61) is installed on the top of the support frame (6). A second auxiliary part (62) is provided on the fixing plate (61). The second auxiliary part (62) has the same structure as the first auxiliary part (51).

2. The automatic U-shaped boiler tube bending device according to claim 1, characterized in that: The second equipment box (55) has an opening, one end of the two sets of pressure plates (57) passes through the opening, the track (542) is located on one side of the lead screw (541), the first equipment box (501) has two sets of through slots (53), one end of the slide (54) passes through the two sets of through slots (53).

3. The automatic U-shaped boiler tube bending device according to claim 1, characterized in that: The feeding assembly (2) includes a moving module (21) installed on the processing table (1). A protective shell (22) is installed on the output end of the moving module (21). A hollow tube (23) is installed inside the protective shell (22). A gripper (24) is provided at the end of the hollow tube (23) away from the protective shell (22).

4. The automatic U-shaped boiler tube bending device according to claim 3, characterized in that: A mounting box (38) is installed on one side of the fixed box (35). A slider (39) is slidably arranged on the mounting box (38). A first pneumatic push rod is arranged inside the mounting box (38). The output end of the first pneumatic push rod is connected to the slider (39). A base plate (361) is installed on the top of the slider (39). A mounting seat (36) is installed on the top of the base plate (361).

5. The automatic U-shaped boiler tube bending device according to claim 4, characterized in that: A cylinder (34) is installed on the mounting base (36). A connecting seat (4) is installed at the output end of the cylinder (34). A pad (33) is installed on the connecting seat (4). Two sets of guide rails (32) are installed on one side of the pad (33). The two sets of guide rails (32) are slidably disposed on one side of the mounting base (36). A clamping plate (321) is installed on the other side of the pad (33). An arc groove is provided on the clamping plate (321).

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