Boiler low-nitrogen combustion assembly punch forming device

Abstract

The invention discloses a boiler low-nitrogen combustion assembly punch forming device, and relates to the technical field of boiler low-nitrogen combustion assembly machining, the boiler low-nitrogen combustion assembly punch forming device comprises a base and a clamping mechanism, the base is composed of a wide transverse plate and an inverted-L-shaped plate, and the clamping mechanism used for clamping the front middle section of a pipe fitting is arranged on the top wall of a lower support; an inner supporting mechanism used for inner supporting is arranged above the lower supporting vertical plate and below the vertical plate of the clamping mechanism. Through cooperation of the lower support and the clamping mechanism, the front portion and the middle portion of the to-be-machined hollow pipe fitting are clamped and limited at the same time, and stability is kept through multi-point simultaneous clamping; the front middle portion of the to-be-machined hollow pipe fitting is internally supported through the inner supporting mechanism, the rigid supporting part can adjust the diameter of the inner support, the practicability of the inner support is improved, the flexible supporting part can internally support the bent position of the rear portion of the to-be-machined hollow pipe fitting, and sinking in the bending process is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of boiler low-nitrogen combustion component processing, and in particular to a boiler low-nitrogen combustion component stamping and forming device. Background Art

[0002] Boiler low-nitrogen combustion components are components used to reduce the emission of nitrogen oxides generated during the combustion process. By optimizing the combustion process, improving combustion efficiency and reducing the generation of nitrogen oxides, it helps protect the environment. Boiler low-nitrogen combustion pipe fittings are one of the components in the boiler low-nitrogen combustion components. In the manufacturing process of boiler low-nitrogen combustion pipe fittings, stamping and bending forming technology is usually used to make elbows for straight pipe fittings and some pipes that require specific bending angles.

[0003] At present, during the stamping and bending process of boiler low-nitrogen combustion pipe fittings, in order to ensure accurate bending angles and shapes, the pipes are positioned and kept stable by clamps during the bending process. However, the pipe fittings usually have a certain length and the clamping range is limited, resulting in poor clamping effect and low stability of the pipe fittings during the stamping and bending process. Secondly, boiler low-nitrogen combustion pipe fittings are hollow pipe fittings, which are prone to collapse during the stamping and bending process. Usually, core rods are used for internal support. However, existing core rods are usually not convenient for adjusting the support diameter and are difficult to adapt to hollow pipe fittings with different inner diameters, resulting in low practicality. Furthermore, during the stamping and bending process, the bending angle is difficult to control accurately, and there are cases where the bending angle is insufficient or too large, which is not conducive to accurate bending angles.

[0004] Therefore, in order to improve the stability of the pipe during the stamping and bending process and prevent collapse during the bending process, the present invention provides a stamping and forming device for a boiler low-nitrogen combustion component. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the prior art and to propose a boiler low-nitrogen combustion component stamping forming device.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a boiler low-nitrogen combustion component stamping forming device, including a base and a clamping mechanism, the base is composed of a wide horizontal plate and an inverted L-shaped plate, and the top wall of the wide horizontal plate of the base is evenly fixed with three lower supports from left to right, the lower support is composed of two vertical plates symmetrically distributed front and back and an arc-shaped plate fixedly connected through the vertical plates, and the top walls of the two vertical plates of the lower support are both provided with V-shaped grooves, the top wall of the lower support is provided with a clamping mechanism for clamping the front middle section of the pipe fitting, and the clamping mechanism includes an upper clamping assembly for clamping the limiting pipe fitting and a positioning assembly for positioning the inner support.

[0007] An inner support mechanism for inner support is arranged above the lower support and below the clamping mechanism, and the inner support mechanism includes an inner support driving assembly that can be positioned, a rigid support adjustment assembly that can adjust the diameter, and a flexible support installation assembly that can be disassembled and assembled; three quick unloading mechanisms for bending are evenly arranged on the top wall of the inverted L-shaped plate of the base from left to right, and the outer walls of the quick unloading mechanisms are provided with bending angle adjustment mechanisms for adjusting the bending angle, and the quick unloading mechanisms and the bending angle adjustment mechanisms are arranged behind the corresponding lower support and clamping mechanisms.

[0008] In the above-mentioned stamping forming device of a boiler low-nitrogen combustion component, the upper clamping component includes a clamping member, and the clamping member is composed of a horizontal plate corresponding to the arc-shaped plate of the lower support and two vertical plates symmetrically fixed to the bottom wall of the horizontal plate front and back, the bottom wall of the vertical plate of the clamping member is slidably connected to the corresponding vertical plate top wall of the lower support through a round rod, the bottom walls of the vertical plates of the clamping member are each provided with an inverted V-shaped groove, and a connecting plate is fixedly connected through the top of the clamping member, the bottom walls at both ends of the connecting plate are fixedly connected to the first hydraulic rod, and the bottom wall of the first hydraulic rod is fixedly connected to the top wall of the horizontal plate of the base.

[0009] In the above-mentioned stamping and forming device of a boiler low-nitrogen combustion component, the positioning component includes a straight slide rail, and a straight slide rail is opened on the front part of the bottom wall of the clamping member, the outer wall of the straight slide rail is slidably connected with a sliding member, and a first electric push rod is fixed to the front wall of the sliding member, and the front wall of the first electric push rod is fixed to the outer wall of the clamping member.

[0010] In the above-mentioned stamping forming device of a boiler low-nitrogen combustion component, the internal support driving component includes a connecting column, and the rear side wall of the sliding member is snap-connected with the connecting column, the rear side wall of the connecting column is fixed with a support member, and the support member is composed of an I-shaped hollow member and a plurality of short plates fixed along the circumferential direction on the front wall of the I-shaped member, the outer walls of the short plates of the support member are provided with limiting holes, and the middle part of the I-shaped hollow member of the support member is rotatably connected with a driving rod, the front end side wall of the driving rod is snap-connected with a first positioning rod, and the first positioning rod is snap-connected to the inside of the limiting hole.

[0011] In the above-mentioned stamping forming device of a boiler low-nitrogen combustion component, the rigid support adjustment component includes an adjusting wedge, and four adjusting wedges are fixed on the outer wall of the middle part of the driving rod along the circumferential direction. The outer walls of the four adjusting wedges are all fitted and connected with an extension plate, and the extension plate is composed of a wedge plate and an arc plate. The wedge plate of the extension plate slides through and is connected to the I-shaped hollow part of the support, and the arc plate of the extension plate and the corresponding support are connected by a first spring.

[0012] In the above-mentioned stamping forming device of a boiler low-nitrogen combustion component, the flexible support installation component includes a mounting sub-component, the rear end of the I-shaped hollow part of the support component is fixed with a mounting sub-component, and the side wall of the mounting sub-component is fixed with a second positioning rod, the rear end of the mounting sub-component is fitted with a second spring, and the side wall of the mounting sub-component is sleeved and connected with a positioning bin, the second spring is installed on the rear inner wall of the positioning bin, and the outer wall of the positioning bin is provided with a U-shaped slide rail, there is a length difference between the two front and rear direction transverse sections of the U-shaped slide rail, and the second positioning rod is slidably connected in the U-shaped slide rail, and the rear end of the positioning bin is fixed with a flexible support component.

[0013] In the above-mentioned boiler low-nitrogen combustion component stamping and forming device, the rapid unloading mechanism includes a bending seat, the top wall of the inverted L-shaped plate of the base is a bending seat, and the bottom wall of the inverted L-shaped plate of the base is provided with a bending drive component for driving, a bending component for bending is provided on the left side of the bending seat, and a bending diameter adjustment component for adjusting the bending diameter is provided on the outer wall of the bending component.

[0014] In the above-mentioned stamping and forming device of a boiler low-nitrogen combustion component, the bending drive component includes a connecting shaft, and the internal rotation of the bending seat is connected to the connecting shaft, the bottom wall of the connecting shaft is fixed with a gear, and the outer wall of the gear is jointly meshed and connected with a rack, the rack is slidably connected to the bottom wall of the inverted L-shaped plate of the base, and the right end of the rack is fixed with a second hydraulic rod, and the right end of the second hydraulic rod is fixed to the bottom wall of the inverted L-shaped plate of the base, and the top wall of the connecting shaft is fixed with an adjusting bin.

[0015] In the above-mentioned stamping and forming device of a boiler low-nitrogen combustion component, the bending component includes a slider, and the left side of the adjusting chamber is slidably connected to the slider, an L-shaped support seat is fixed to the left side of the slider, and a roller is rotatably connected to the lower part of the right wall of the L-shaped support seat, the outer wall of the roller is slidably connected to a bending part, the top wall of the bending part is slidably connected to a connecting part, and the top wall of the connecting part is fixed to the bottom wall of the L-shaped support seat.

[0016] In the above-mentioned stamping and forming device of a boiler low-nitrogen combustion component, the bending diameter adjustment component includes a second electric push rod, and the top wall of the adjustment bin is fixed with the second electric push rod, the top wall of the second electric push rod is fixed with a support plate, and the front and rear side walls of the support plate are slidably connected with a circular support seat, the circular support seat is fixed to the top wall of the adjustment bin, the left wall of the support plate is hinged with an adjustment rod, and the left wall of the adjustment rod is hinged to the top of the L-shaped support seat.

[0017] In the above-mentioned stamping and forming device of a boiler low-nitrogen combustion component, the bending angle adjustment mechanism includes a semi-ring part, a plurality of positioning parts are evenly fixed on the bottom wall of the semi-ring part, a plurality of second positioning holes are evenly opened on the top wall of the bending seat in the circumferential direction, and an angle adjustment plate is fitted and connected to the top wall of the bending seat, a plurality of first positioning holes are evenly opened on the upper side of the angle adjustment plate in the circumferential direction, and the positioning parts are all snap-fitted and connected to the corresponding first positioning holes and second positioning holes, a limiting ball is fixed on the side wall of the angle adjustment plate, and the limiting ball is fitted and connected to the side wall of the bending seat, and a plurality of magnetic strips are correspondingly installed on the top wall of the bending seat and the bottom wall of the angle adjustment plate.

[0018] Compared with the existing technology, the advantages of the present invention are as follows: firstly, the present invention cooperates with the lower support and the clamping mechanism to simultaneously clamp and limit the front and middle parts of the hollow pipe to be processed, and simultaneously clamps at multiple points to maintain stability, thereby preventing the position of the hollow pipe to be processed from being offset during the processing; secondly, the inner support mechanism further limits the position of the hollow pipe to be processed, and the front and middle parts of the hollow pipe to be processed are internally supported, and the rigid support part can adjust the inner support diameter, thereby increasing the practicality of the inner support, and the flexible support installation component can be quickly disassembled and assembled, and the rear bending part of the hollow pipe to be processed can be adjusted. The internal support can prevent collapse during the bending process; furthermore, the rapid unloading mechanism and the bending angle adjustment mechanism cooperate with each other to adjust according to the actual processing diameter and length of the hollow pipe to be processed, so that the processed hollow pipe can be unloaded quickly, which improves the efficiency of unloading; finally, the device can simultaneously perform loading, clamping, internal support and bending processing on multiple hollow pipes to be processed, thereby improving the production efficiency. Compared with the traditional rapid stamping and bending method, the force of the second hydraulic rod can be slowly applied to the hollow pipe through the cooperation of the gear and the rack, thereby preventing the hollow pipe from being deformed or damaged due to excessive instantaneous force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a boiler low-nitrogen combustion component stamping and forming device proposed by the present invention.

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of a clamping component on a stamping and forming device for a boiler low-nitrogen combustion component proposed by the present invention.

[0021] Figure 3 This is a structural schematic diagram of a positioning component of a boiler low-nitrogen combustion component stamping and forming device proposed by the present invention.

[0022] Figure 4 This is a schematic structural diagram of an inner support mechanism of a stamping and forming device for a boiler low-nitrogen combustion component proposed by the present invention.

[0023] Figure 5 This is a schematic structural diagram of a boiler low-nitrogen combustion component stamping and forming device proposed in the present invention before and after the extension plate is extended.

[0024] Figure 6 This is a structural schematic diagram of a rapid material discharge mechanism and a bending angle adjustment mechanism of a boiler low-nitrogen combustion component stamping and forming device proposed by the present invention.

[0025] Figure 7 This is a structural schematic diagram of a bent part of a stamping and forming device for a boiler low-nitrogen combustion component proposed by the present invention.

[0026] Figure 8 This is a schematic structural diagram of a rack of a boiler low-nitrogen combustion component stamping and forming device proposed by the present invention.

[0027] Fig. 9 This is a structural schematic diagram of a bending angle adjustment mechanism of a stamping and forming device for a boiler low-nitrogen combustion component proposed by the present invention.

[0028] In the figure: 1, base; 2, lower support; 3, clamping mechanism; 31, upper clamping assembly; 311, clamping member; 312, connecting plate; 313, first hydraulic rod; 32, positioning assembly; 321, straight slide rail; 322, sliding member; 323, first electric push rod; 4, inner support mechanism; 41, inner support drive assembly; 411, connecting column; 412, support member; 413, limiting hole; 414, driving rod; 415, first positioning rod; 42, rigid support adjustment assembly; 421, adjustment wedge; 422, extension plate; 423, first spring; 43, flexible support installation assembly; 431, installation subassembly; 432, second positioning rod; 433, positioning bin; 434, second spring; 435, U-shaped slide rail; 436, flexible support member; 5, quick unloading mechanism; 51, bending seat; 52, bending drive assembly; 521, connecting shaft; 522, gear; 523, rack; 524, second hydraulic rod; 525, adjustment bin; 53, bending assembly; 531, slider; 532, L-shaped support seat; 533, roller; 534, bending member; 535, connecting member; 54, bending diameter adjustment assembly; 541, second electric push rod; 542, support plate; 543, return support seat; 544, adjustment rod; 6, bending angle adjustment mechanism; 61, semi-ring member; 62, positioning member; 63, angle adjustment plate; 64, first positioning hole; 65, second positioning hole; 66, limiting ball; 67, magnetic strip. DETAILED DESCRIPTION

[0029] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0030] Reference Figures 1 to 3 A stamping forming device for a boiler low-nitrogen combustion component comprises a base 1 and a clamping mechanism 3. The base 1 is composed of a wide horizontal plate and an inverted L-shaped plate. Three lower supports 2 are evenly fixed on the top wall of the wide horizontal plate of the base 1 from left to right. The lower support 2 is composed of two vertical plates symmetrically distributed front and back and an arc-shaped plate fixedly connected between the vertical plates. The top walls of the two vertical plates of the lower support 2 are both provided with V-shaped grooves. The top wall of the lower support 2 is provided with a clamping mechanism 3 for clamping the front middle section of the pipe fitting. The clamping mechanism 3 comprises an upper clamping component 31 for clamping the limit pipe fitting and a positioning component 32 for positioning the inner support; the lower support 2 is vertical An internal support mechanism 4 for internal support is commonly provided above the plate and below the clamping mechanism 3, and the internal support mechanism 4 comprises an internal support driving assembly 41 for positioning, a rigid support adjustment assembly 42 for adjusting the diameter, and a flexible support mounting assembly 43 for assembly and disassembly; three quick unloading mechanisms 5 for bending are evenly provided from left to right on the top wall of the inverted L-shaped plate of the base 1, and a bending angle adjustment mechanism 6 for adjusting the bending angle is provided on the outer wall of the quick unloading mechanism 5, and the quick unloading mechanism 5 and the bending angle adjustment mechanism 6 are arranged behind the corresponding lower support 2 and the clamping mechanism 3.

[0031] First, place the base 1 on a horizontal plane, insert the inner support mechanism 4 into the hollow pipe to be processed, and then push the hollow pipe to be processed and the inner support mechanism 4 from front to back into a suitable position between the lower support 2 and the clamping mechanism 3, and insert the rear end of the hollow pipe to be processed between the quick feeding mechanism 5 and the bending angle adjustment mechanism 6, and the clamping mechanism 3 moves downward toward the lower support 2, and the lower support 2 and the clamping mechanism 3 clamp and limit the hollow pipe to be processed at the same time, and clamp at multiple points at the same time to maintain stability to prevent the hollow pipe to be processed from moving backward during the bending process, thereby affecting the bending effect.

[0032] During the processing, the rigid support part of the internal support mechanism 4 can provide internal support for the front middle part of the hollow pipe to be processed, and the rigid support adjustment component 42 can adjust the internal support diameter to increase the practicality of the internal support. The rigid support adjustment component 42 and the flexible support installation component 43 of the internal support mechanism 4 can be quickly disassembled and assembled, which is convenient for replacing the flexible support installation components 43 of different diameters according to actual needs. The flexible support installation component 43 can provide internal support for the rear bending part of the hollow pipe to be processed to prevent collapse during the bending process.

[0033] By adjusting the movement of the quick feeding mechanism 5, it can be adjusted according to the actual processing diameter of the hollow pipe to be processed, which is convenient for adjusting the length of the hollow pipe during processing. After the processing is completed, the quick feeding mechanism 5 quickly releases the bending clamping of the hollow pipe, which is conducive to the quick feeding of the completed hollow pipe; by adjusting the bending angle adjustment mechanism 6, the bending angle of the hollow pipe to be processed can be limited, so that the hollow pipe to be processed can be bent within a specified range. After the adjustment is completed, the quick feeding mechanism 5 can lock the bending angle adjustment mechanism 6; the device can simultaneously perform feeding, clamping, internal support and bending processing on multiple hollow pipes to be processed, thereby improving production efficiency.

[0034] Reference Figures 1 to 3 The upper clamping assembly 31 includes a clamping member 311, and the clamping member 311 is composed of a horizontal plate corresponding to the arc-shaped plate of the lower support 2 and two vertical plates symmetrically fixed to the bottom wall of the horizontal plate. The bottom wall of the vertical plate of the clamping member 311 is slidably connected to the corresponding vertical plate top wall of the lower support 2 through a round rod. The bottom walls of the vertical plates of the clamping member 311 are all provided with inverted V-shaped grooves. A connecting plate 312 is fixedly connected through the top of the clamping member 311. The bottom walls of the left and right ends of the connecting plate 312 are fixedly connected to the first hydraulic rod 313, and the bottom wall of the first hydraulic rod 313 is fixedly connected to the top wall of the horizontal plate of the base 1.

[0035] The positioning assembly 32 includes a straight slide rail 321. The front part of the bottom wall of the clamping member 311 is provided with a straight slide rail 321. The outer wall of the straight slide rail 321 is slidably connected with a sliding member 322. The front wall of the sliding member 322 is fixed with a first electric push rod 323. The front wall of the first electric push rod 323 is fixed to the outer wall of the clamping member 311.

[0036] Reference Figures 3 to 5 The inner support driving assembly 41 includes a connecting column 411, the rear side wall of the sliding member 322 is engaged with the connecting column 411, the rear side wall of the connecting column 411 is fixed with a support member 412, the support member 412 is composed of an I-shaped hollow member and a plurality of short plates fixed along the circumferential direction of the front wall of the I-shaped member, and the outer walls of the short plates of the support member 412 are provided with limiting holes 413, and the middle part of the I-shaped hollow member of the support member 412 is rotatably connected with a driving rod 414, and the front end side wall of the driving rod 414 is engaged with a first positioning rod 415, and the first positioning rod 415 is engaged with the inside of the limiting hole 413.

[0037] The rigid support adjustment assembly 42 includes an adjustment wedge 421. Four adjustment wedges 421 are fixed to the outer wall of the middle part of the driving rod 414 along the circumferential direction. The outer walls of the four adjustment wedges 421 are all fitted and connected with an extension plate 422. The extension plate 422 is composed of a wedge plate and an arc plate. The wedge plate of the extension plate 422 slides through and is connected to the I-shaped hollow part of the support member 412. The arc plate of the extension plate 422 and the corresponding support member 412 are connected by a first spring 423.

[0038] The flexible support installation assembly 43 includes a mounting sub-component 431, the mounting sub-component 431 is fixed to the rear end of the working-shaped hollow member of the support member 412, the side wall of the mounting sub-component 431 is fixed with a second positioning rod 432, the rear end of the mounting sub-component 431 is fitted with a second spring 434, the side wall of the mounting sub-component 431 is sleeved and connected with a positioning bin 433, the second spring 434 is installed on the rear inner wall of the positioning bin 433, the outer wall of the positioning bin 433 is provided with a U-shaped slide rail 435, and there is a length difference between the two front and rear cross sections of the U-shaped slide rail 435, the second positioning rod 432 is slidably connected in the U-shaped slide rail 435, and the rear end of the positioning bin 433 is fixed with a flexible support member 436.

[0039] Insert the inner support mechanism 4 into the hollow pipe to be processed, and then push the hollow pipe to be processed and the inner support mechanism 4 from front to back into the appropriate position between the lower support 2 and the clamping mechanism 3, the arc plate of the lower support 2 supports the hollow pipe to be processed, the first hydraulic rod 313 drives the connecting plate 312 and the clamping member 311 to move downward, the round rod of the bottom wall of the vertical plate of the clamping member 311 slides downward relative to the corresponding top wall of the vertical plate of the lower support 2, the vertical plate of the lower support 2 and the vertical plate of the clamping member 311 clamp and limit the front and middle parts of the hollow pipe to be processed at the same time, and clamp at multiple points at the same time to maintain stability, so as to prevent the position of the hollow pipe to be processed from being offset during the processing, thereby affecting the bending effect.

[0040] The driving rod 414 is moved to a suitable angle in the gap between the short plates of the support member 412, and the first positioning rod 415 is inserted into the limiting hole 413 and the driving rod 414 to fix the position of the inner support driving assembly 41. The driving rod 414 rotates to drive the adjusting wedge block 421 to rotate, pushing the wedge plate of the extension plate 422 to slide on the outer wall of the support member 412, and the arc plate of the extension plate 422 is away from the outer wall of the support member 412, close to the inner wall of the hollow pipe to be processed, and the first spring 423 is stretched, so that the rigid support adjustment assembly 42 can provide internal support for the front middle part of the hollow pipe to be processed, and at the same time, the rigid support adjustment assembly 42 can adjust the internal support diameter, thereby increasing the practicality of the internal support; the flexible support member 436, as a flexible support part, can provide internal support for the rear bending part of the hollow pipe to be processed to prevent collapse during the bending process, help maintain the circular cross-section of the pipe, and reduce the deformation of the hollow pipe.

[0041] After the inner support mechanism 4 is adjusted, the output end of the first electric push rod 323 pushes the sliding member 322 backward to slide on the outer wall of the straight slide rail 321, and the protrusion set on the rear wall of the sliding member 322 engages with the front wall of the connecting column 411 to limit the position of the inner support mechanism 4.

[0042] When installing the flexible support member 436, the installation component 431 is inserted into the positioning chamber 433, the second spring 434 is compressed, and the second positioning rod 432 slides in the U-shaped slide rail 435 to the end of the long horizontal section of the U-shaped slide rail 435. The installation component 431 and the second positioning rod 432 are rotated, and the second spring 434 rebounds and drives the second positioning rod 432 to move to the end of the short horizontal section of the U-shaped slide rail 435. Quick installation can be achieved by inserting and turning, thereby realizing quick disassembly and assembly of the rigid support adjustment component 42 and the flexible support installation component 43 of the internal support mechanism 4. Flexible support installation components 43 of different diameters can be replaced according to actual needs, which is convenient for saving costs.

[0043] Reference Figure 1 and Figure 8 The quick unloading mechanism 5 includes a bending seat 51, the top wall of the inverted L-shaped plate of the base 1 is fixed with the bending seat 51, the bottom wall of the inverted L-shaped plate of the base 1 is provided with a bending driving component 52 for driving, a bending component 53 for bending is provided on the left side of the bending seat 51, and a bending diameter adjustment component 54 is provided on the outer wall of the bending component 53.

[0044] Reference Figure 7 and Figure 8 The bending drive assembly 52 includes a connecting shaft 521, the internal rotation of the bending seat 51 is connected to the connecting shaft 521, the bottom wall of the connecting shaft 521 is fixed with a gear 522, the outer wall of the gear 522 is meshed and connected with a rack 523, the rack 523 is slidably connected to the bottom wall of the inverted L-shaped plate of the base 1, the right end of the rack 523 is fixed with a second hydraulic rod 524, the right end of the second hydraulic rod 524 is fixed to the bottom wall of the inverted L-shaped plate of the base 1, and the top wall of the connecting shaft 521 is fixed with an adjusting bin 525.

[0045] Reference Figure 7 The bending assembly 53 includes a slider 531, the left side of the adjusting chamber 525 is slidably connected to the slider 531, the left side of the slider 531 is fixed with an L-shaped support seat 532, the lower part of the right wall of the L-shaped support seat 532 is rotatably connected to a roller 533, the outer wall of the roller 533 is slidably connected to a bending piece 534, the top wall of the bending piece 534 is slidably connected to a connecting piece 535, and the top wall of the connecting piece 535 is fixed to the bottom wall of the L-shaped support seat 532.

[0046] Reference Figure 6 and Fig. 9The bending diameter adjustment component 54 includes a second electric push rod 541, and the top wall of the adjustment chamber 525 is fixed with the second electric push rod 541. The top wall of the second electric push rod 541 is fixed with a support plate 542. The front and rear side walls of the support plate 542 are slidably connected with a circular support seat 543. The circular support seat 543 is fixed to the top wall of the adjustment chamber 525. The left wall of the support plate 542 is hinged with an adjustment rod 544, and the left wall of the adjustment rod 544 is hinged to the top of the L-shaped support seat 532.

[0047] The rear end of the hollow pipe to be processed is inserted between the bending seat 51 and the bending piece 534, and the output end of the second electric push rod 541 moves upward to drive the support plate 542 to slide on the inner wall of the circular support seat 543. The support plate 542 pulls the adjusting rod 544 and the L-shaped support seat 532 to adjust the position. The adjusting rod 544 rotates at an angle to adapt to the movement of the support plate 542 and the L-shaped support seat 532. The slider 531 slides from the left side of the adjusting bin 525 to the inside of the adjusting bin 525, and the L-shaped support seat 532 drives the bending piece 534 to approach the hollow pipe to be processed until the left side wall of the hollow pipe to be processed is close to the right side wall of the bending piece 534, and the right side wall of the hollow pipe to be processed is close to the left side wall of the bending seat 51. The metal gasket can be connected to the outer wall of the bending piece 534 and the bending seat 51 close to the hollow pipe to be processed by screws to further adapt to the diameter of the hollow pipe to be processed.

[0048] When the processing starts, the output end of the second hydraulic rod 524 pushes the rack 523 to slide on the bottom wall of the inverted L-shaped plate of the base 1, and the rack 523 drives the gear 522 and the connecting shaft 521 to rotate, and the adjusting chamber 525 drives the slider 531 and the bending member 534 to rotate accordingly. When the bending member 534 moves, the outer wall of one side of the hollow pipe to be processed is always close to the hollow pipe to be processed. When the bending member 534 moves, the outer wall of one side of the hollow pipe to be processed is away from the outer wall of the hollow pipe to be processed and slides on the outer wall of the roller 533. The roller 533 rolls and cooperates with the bending member 5 34 is used for position adjustment, the connecting piece 535 slides on the top wall of the bending piece 534 to cooperate with the bending piece 534 for position adjustment, the bending piece 534 squeezes the hollow pipe to be processed to be bent around the side wall of the bending seat 51, the gear 522 cooperates with the rack 523, and the second hydraulic rod 524 can be slowly applied to the hollow pipe, that is, the hollow pipe can be slowly stamped and bent. Compared with the traditional stamping and bending method, the instantaneous force on the hollow pipe is reduced, and the hollow pipe is prevented from being damaged due to excessive deformation at one time.

[0049] When discharging, the second electric push rod 541 drives the bending part 534 to reset, and the bending part 534 moves away from the processed hollow pipe fitting. The bending part 534 and the bending seat 51 quickly release the hollow pipe fitting, which is conducive to the rapid unloading of the processed hollow pipe fitting and improves the efficiency of discharging. In addition, the device can simultaneously perform loading, clamping, internal support and bending processing on multiple hollow pipe fittings to be processed, thereby improving production efficiency.

[0050] Reference Figure 6 and Fig. 9 The bending angle adjustment mechanism 6 includes a semi-ring member 61, a semi-ring member 61 is arranged on the outer side of the adjustment bin 525, a plurality of positioning members 62 are evenly fixed on the bottom wall of the semi-ring member 61, a plurality of second positioning holes 65 are evenly opened on the top wall of the bending seat 51 along the circumferential direction, an angle adjustment plate 63 is rotatably connected to the top wall of the bending seat 51, a plurality of first positioning holes 64 are evenly opened on the angle adjustment plate 63 along the circumferential direction, the positioning members 62 are all snap-fitted and connected to the corresponding first positioning holes 64 and second positioning holes 65, a limiting ball 66 is fixed on the side wall of the angle adjustment plate 63, the limiting ball 66 is fitted and connected to the side wall of the bending seat 51, and a plurality of magnetic strips 67 are correspondingly installed on the top wall of the bending seat 51 and the bottom wall of the angle adjustment plate 63.

[0051] When the requirements for the bending angles of hollow pipes processed in different batches are different, the angle adjustment plate 63 is rotated on the top wall of the bending seat 51 to a specified angle, and the limiting ball 66 is rotated to a suitable position on the side wall of the bending seat 51. The limiting ball 66 limits the bending angle of the hollow pipe to be processed, and it is also convenient for the staff to judge whether the pipe is bent in place.

[0052] The semi-ring member 61 is pressed down to move the positioning member 62 downward until it engages in the first positioning hole 64 and the second positioning hole 65. The positions of the angle adjustment plate 63 and the limiting ball 66 are locked by the positioning member 62, and the magnetic strip 67 between the angle adjustment plate 63 and the bending seat 51 can play a preliminary positioning effect on the angle adjustment plate 63 after the angle is adjusted.

[0053] Reference Figures 1 to 9 The specific operating steps of the stamping and forming device for low-nitrogen combustion components of the boiler are as follows: place the base 1 on a horizontal plane, insert the inner support mechanism 4 into the hollow pipe to be processed, and then push the hollow pipe to be processed and the inner support mechanism 4 from front to back into a suitable position between the lower support 2 and the clamping mechanism 3, and insert the rear end of the hollow pipe to be processed between the quick feeding mechanism 5 and the bending angle adjustment mechanism 6. The vertical plate of the lower support 2 and the vertical plate of the clamping member 311 clamp and limit the front and middle parts of the hollow pipe to be processed at the same time, and clamp at multiple points at the same time to maintain stability.

[0054] The arc-shaped plate of the extension plate 422 is away from the outer wall of the support member 412 and is close to the inner wall of the hollow pipe to be processed, providing internal support for the front middle part of the hollow pipe to be processed; the flexible support member 436, as a flexible support part, can provide internal support for the rear bending part of the hollow pipe to be processed to prevent collapse during the bending process.

[0055] The hollow pipe to be processed is close to the right side wall of the bending piece 534 and the left side wall of the bending seat 51. The output end of the second hydraulic rod 524 pushes the rack 523 to slide on the bottom wall of the inverted L-shaped plate of the base 1. The rack 523 drives the gear 522 and the connecting shaft 521 to rotate, and the adjusting bin 525 drives the slider 531 and the bending piece 534 to rotate. The bending piece 534 squeezes the hollow pipe to be processed and bends it around the side wall of the bending seat 51.

[0056] After the processing is completed, the bending member 534 is reset, and the bending member 534 and the bending seat 51 quickly release the bending clamping of the hollow pipe, so as to quickly take out the processed hollow pipe.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A boiler low-nitrogen combustion component stamping forming device, comprising a base (1) and a clamping mechanism (3), characterized in that: The base (1) is composed of a wide horizontal plate and an inverted L-shaped plate, and three lower supports (2) are evenly fixed on the top wall of the wide horizontal plate of the base (1) from left to right, and the lower support (2) is composed of two vertical plates symmetrically distributed front and back and an arc-shaped plate fixedly connected between the vertical plates, and the top walls of the two vertical plates of the lower support (2) are both provided with V-shaped grooves, and the top wall of the lower support (2) is provided with a clamping mechanism (3) for clamping the front middle section of the pipe fitting, and the clamping mechanism (3) includes an upper clamping component (31) for clamping the limiting pipe fitting and a positioning component (32) for positioning the inner support; An inner support mechanism (4) for inner support is disposed above the lower support (2) and below the clamping mechanism (3), and the inner support mechanism (4) comprises an inner support driving assembly (41) capable of positioning, a rigid support adjustment assembly (42) capable of adjusting the diameter, and a flexible support installation assembly (43) capable of being disassembled and assembled; The top wall of the inverted L-shaped plate of the base (1) is evenly provided with three quick material discharge mechanisms (5) for bending from left to right, and the outer walls of the quick material discharge mechanisms (5) are provided with bending angle adjustment mechanisms (6) for adjusting the bending angle, and the quick material discharge mechanisms (5) and the bending angle adjustment mechanisms (6) are arranged behind the corresponding lower support (2) and clamping mechanism (3).

2. A boiler low-nitrogen combustion component stamping forming device according to claim 1, characterized in that: The upper clamping assembly (31) comprises a clamping member (311), and the clamping member (311) is composed of a horizontal plate corresponding to the arc-shaped plate of the lower support (2) one by one and two vertical plates fixed symmetrically to the bottom wall of the horizontal plate in front and back. The bottom wall of the vertical plate of the clamping member (311) is slidably connected to the top wall of the vertical plate of the corresponding lower support (2) through a round rod. The bottom wall of the vertical plate of the clamping member (311) is provided with an inverted V-shaped groove, and a connecting plate (312) is fixedly connected through the top of the clamping member (311). The bottom walls of the left and right ends of the connecting plate (312) are fixedly connected to the first hydraulic rod (313), and the bottom wall of the first hydraulic rod (313) is fixedly connected to the top wall of the horizontal plate of the base (1).

3. A boiler low-nitrogen combustion component stamping forming device according to claim 2, characterized in that: The positioning assembly (32) includes a straight slide rail (321), and the front part of the bottom wall of the clamping member (311) is provided with a straight slide rail (321), the outer wall of the straight slide rail (321) is slidably connected with a sliding member (322), and the front wall of the sliding member (322) is fixed with a first electric push rod (323), and the front wall of the first electric push rod (323) is fixed to the outer wall of the clamping member (311).

4. A boiler low-nitrogen combustion component stamping forming device according to claim 3, characterized in that: The inner support driving assembly (41) comprises a connecting column (411), and the rear side wall of the sliding member (322) is snap-connected with the connecting column (411), the rear side wall of the connecting column (411) is fixed with a supporting member (412), and the supporting member (412) is composed of a hollow I-shaped member and a plurality of short plates fixed along the circumferential direction of the front wall of the I-shaped member, the outer wall of the short plate of the supporting member (412) is provided with a limiting hole (413), and the middle part of the I-shaped hollow member of the supporting member (412) is rotatably connected with a driving rod (414), and the front end side wall of the driving rod (414) is snap-connected with a first positioning rod (415), and the first positioning rod (415) is snap-connected inside the limiting hole (413).

5. A boiler low-nitrogen combustion component stamping forming device according to claim 4, characterized in that: The rigid support adjustment component (42) comprises an adjustment wedge (421), and four adjustment wedges (421) are fixed on the outer wall of the middle part of the driving rod (414) along the circumferential direction. The outer walls of the four adjustment wedges (421) are all fitted and connected with an extension plate (422), and the extension plate (422) is composed of a wedge plate and an arc plate. The wedge plate of the extension plate (422) is slidably connected to the I-shaped hollow part of the support member (412), and the arc plate of the extension plate (422) and the corresponding support member (412) are connected via a first spring (423).

6. A boiler low-nitrogen combustion component stamping forming device according to claim 4, characterized in that: The flexible support mounting assembly (43) comprises a mounting sub-component (431), the mounting sub-component (431) is fixed to the rear end of the working-shaped hollow member of the support member (412), and the side wall of the mounting sub-component (431) is fixed with a second positioning rod (432), the rear end of the mounting sub-component (431) is fitted with a second spring (434), and the side wall of the mounting sub-component (431) is sleeved and connected with a positioning bin (433), the second spring (434) is mounted on the rear inner wall of the positioning bin (433), and the outer wall of the positioning bin (433) is provided with a U-shaped slide rail (435), there is a length difference between the two front-to-back transverse sections of the U-shaped slide rail (435), and the second positioning rod (432) is slidably connected in the U-shaped slide rail (435), and the rear end of the positioning bin (433) is fixed with a flexible support member (436).

7. The stamping and forming device for a boiler low-nitrogen combustion component according to claim 1, characterized in that: The rapid unloading mechanism (5) comprises a bending seat (51), the top wall of the inverted L-shaped plate of the base (1) is the bending seat (51), and the bottom wall of the inverted L-shaped plate of the base (1) is provided with a bending drive component (52) for driving, a bending component (53) for bending is provided on the left side of the bending seat (51), and a bending diameter adjustment component (54) is provided on the outer wall of the bending component (53).

8. The stamping and forming device for a boiler low-nitrogen combustion component according to claim 7, characterized in that: The bending drive assembly (52) comprises a connecting shaft (521), and the interior of the bending seat (51) is rotatably connected to the connecting shaft (521), a gear (522) is fixed to the bottom wall of the connecting shaft (521), and the outer wall of the gear (522) is meshingly connected to a rack (523), the rack (523) is slidably connected to the bottom wall of the inverted L-shaped plate of the base (1), and a second hydraulic rod (524) is fixed to the right end of the rack (523), and the right end of the second hydraulic rod (524) is fixed to the bottom wall of the inverted L-shaped plate of the base (1), and an adjustment bin (525) is fixed to the top wall of the connecting shaft (521).

9. A boiler low-nitrogen combustion component stamping and forming device according to claim 8, characterized in that: The bending assembly (53) comprises a slider (531), and the left side of the adjustment chamber (525) is slidably connected to the slider (531), the left side of the slider (531) is fixed with an L-shaped support seat (532), and the lower part of the right wall of the L-shaped support seat (532) is rotatably connected with a roller (533), the outer wall of the roller (533) is slidably connected to a bending member (534), the top wall of the bending member (534) is slidably connected to a connecting member (535), and the top wall of the connecting member (535) is fixed to the bottom wall of the L-shaped support seat (532).

10. A boiler low-nitrogen combustion component stamping and forming device according to claim 9, characterized in that: The bending diameter adjustment component (54) includes a second electric push rod (541), and the top wall of the adjustment chamber (525) is fixed with the second electric push rod (541), the top wall of the second electric push rod (541) is fixed with a support plate (542), and the front and rear side walls of the support plate (542) are slidably connected to a circular support seat (543) up and down, the circular support seat (543) is fixed to the top wall of the adjustment chamber (525), the left wall of the support plate (542) is hinged with an adjustment rod (544), and the left wall of the adjustment rod (544) is hinged to the top of the L-shaped support seat (532).

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