Air inlet flange welding tool

Abstract

The utility model relates to the technical field of flange welding, in particular to an air inlet flange welding tool which comprises a base. The barrel positioning module comprises a barrel bottom edge positioning part and a barrel centering clamping part which are arranged on the base; the hole site positioning module is arranged on the base and comprises a positioning piece matched with a hole site of an end cone; the flange fixing module comprises a first supporting seat arranged on the base, a sliding seat arranged on the first supporting seat in a sliding mode and a flange clamp arranged on the sliding seat, and the sliding seat moves through a pushing mechanism and can fix a barrel, an installed end cone whole and a to-be-welded flange, so that accurate positioning of the barrel, the installed end cone whole and the to-be-welded flange is achieved; and the relative position stability of the two parts in the welding process is ensured, so that the two parts are prevented from deformation and displacement in the welding process, and the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flange welding, in particular to an air intake flange welding tool. Background Art

[0002] Flanges are parts that connect pipes to pipes and valves, and are connected to the ends of pipes. The exhaust manifold is an important supporting component of the exhaust system of an automobile engine. Its structure usually has an air intake corresponding to the exhaust port of the automobile engine cylinder, and its air intake part is provided with an air intake flange. Usually, the air intake flange and the end cone need to be welded. The end cone is usually formed by welding two half shells, and its irregular shape can be used for turbulence. In order to facilitate the welding of the air intake flange and the end cone, it is necessary to stabilize the flange and the welding position. When the existing welding tooling is clamping and fixing the flange, it is easy for the end cone and the flange to be positioned incorrectly, resulting in welding position deviation. In addition, since a large amount of heat is generated during the welding process, the end cone and the flange are subject to thermal stress, which can easily cause large deformation of the flange surface and welding defects, resulting in problems with welding quality and reduced welding accuracy. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides an air intake flange welding tool, which can fix the cylinder and the installed end cone as a whole, as well as the flange to be welded, to achieve precise positioning of the two, and ensure that the relative position between the two is stable during the welding process, thereby ensuring that there is no deformation or displacement between the two during welding, thereby improving the welding quality.

[0004] In order to solve the above technical problems, the utility model provides an intake flange welding tool, comprising:

[0005] base;

[0006] The cylinder positioning module comprises a cylinder bottom edge positioning portion and a cylinder centering clamping portion provided on the base;

[0007] A hole positioning module is provided on the base, and the hole positioning module includes a positioning piece that matches the hole position of the end cone;

[0008] The flange fixing module comprises a first supporting seat arranged on a base, a sliding seat slidably arranged on the first supporting seat and a flange clamp arranged on the sliding seat, wherein the sliding seat is moved by a pushing mechanism.

[0009] Furthermore, the flange fixture includes:

[0010] A support plate fixed on the sliding seat, the support plate having a plurality of first yielding openings and a flange positioning plate;

[0011] A mounting frame is provided on a side of the support plate away from the cylinder positioning module, the mounting frame having a mounting cavity and a peripheral wall of the mounting cavity having a plurality of second clearance openings corresponding to the first clearance openings;

[0012] a drive frame, located in the mounting cavity and moved by a telescopic drive member;

[0013] Multiple flange clamps, the claw heads of the multiple flange clamps are located on the side of the support plate away from the mounting frame and extend toward the center, the claw bodies of the three flange clamps are provided with a long hole at one end away from the claw head that slides with the first pin shaft on the driving frame, the other end of the claw body passes through the second clearance port and the first clearance port in sequence to be connected to the claw head, and the middle part of the claw body is hinged to the mounting frame.

[0014] Furthermore, it also includes multiple groups of flange pressing plates, which are fixed to the claw heads, and the multiple groups of flange pressing plates are enclosed to form a ring shape that is adapted to the shape of the flange.

[0015] Furthermore, the telescopic driving member includes:

[0016] a first telescopic cylinder, disposed on a side of the mounting frame away from the support plate, one end of a telescopic rod of the first telescopic cylinder being fixed to the driving frame;

[0017] The first handle has a first sliding hole at the bottom which is movably connected to the other end of the telescopic rod of the first telescopic cylinder, and a middle portion which is hinged to a support block fixed on the first telescopic cylinder.

[0018] Furthermore, the pushing mechanism includes:

[0019] The second telescopic cylinder is fixed to the first vertical plate provided on the first supporting seat,

[0020] A driving head is fixed to the telescopic end of the second telescopic cylinder, and the driving head has a sliding column.

[0021] A driving seat is fixed to the sliding seat and movably connected to the driving head, and the driving seat has a second sliding hole that is slidably matched with the sliding post;

[0022] The second handle is L-shaped, one end of the second handle is hinged to the support rod provided on the first vertical plate, the middle part is hinged to one end of the first connecting rod, and the other end of the first connecting rod is hinged to the driving seat.

[0023] Furthermore, the hole positioning module includes:

[0024] A second supporting seat is provided on the base;

[0025] a third telescopic cylinder, disposed on the second supporting seat;

[0026] A cantilever, one end of which is connected to the telescopic end of the third telescopic cylinder, and the positioning member is provided on the cantilever.

[0027] The guide portion comprises a guide block provided on the second supporting seat and having a guide hole, and a guide rod movably provided in the guide hole, wherein one end of the guide rod is fixed to the cantilever.

[0028] Furthermore, the cylinder centering clamping portion includes:

[0029] The third support seat is provided on the base.

[0030] a centering cylinder, provided on the third supporting seat;

[0031] Two sets of clamping plates are provided and are respectively connected to the telescopic ends of the centering cylinder, and pads are provided on the clamping plates;

[0032] a first slide rail, provided on the lower side of the third support seat;

[0033] The two groups of first sliding blocks are respectively fixed to the bottoms of the two groups of clamping plates, and the first sliding blocks are slidably matched with the first sliding rails.

[0034] Furthermore, it also includes a third handle, the bottom end of the third handle is hinged to the third support seat, and a third sliding hole is provided in the middle, and the third sliding hole is movably connected to the second pin shaft provided on the clamping plate.

[0035] Furthermore, the bottom edge positioning portion of the cylinder includes:

[0036] A support member is mounted on the third support seat through a bracket, and the support member has a plurality of arms diverging from the center outward;

[0037] The bottom edge positioning block of the cylinder is provided on the outwardly extending end of the support arm;

[0038] The cylinder bottom edge positioning plate is arranged on the upper side of the supporting member and has a notch for making way for the cylinder bottom edge positioning block.

[0039] Furthermore, it also includes an arc-shaped shielding plate, which is arranged on the clamping plate and / or the mounting arm, and one end of the mounting arm is fixed to the bracket.

[0040] The beneficial effects of the utility model are as follows: the base supports the modules. The cylinder positioning module and the hole positioning module are used for mounting the welded catalytic converter cylinder and end cone assembly. The cylinder positioning module includes a cylinder bottom edge positioning part and a cylinder centering clamping part arranged on the base. The cylinder bottom edge positioning part accurately positions the bottom edge of the catalytic converter cylinder, that is, positions the height of the catalytic converter cylinder. The cylinder centering clamping part clamps and fixes the catalytic converter cylinder on the circumferential wall of the catalytic converter cylinder to center the catalytic converter cylinder. The hole positioning module is arranged on the base. The positioning part is inserted into the hole of the end cone to position and prevent rotation of the end cone. The cylinder positioning module and the hole positioning module ensure that the installation position of the welded end cone and catalytic converter cylinder assembly is stable and accurate. The flange fixing module is used for mounting and fixing the to-be-welded flange. The flange clamp tightly presses and fixes the to-be-welded flange. The pushing mechanism pushes the sliding seat to move towards the cylinder centering clamping part and abuts against the air inlet of the end cone.

[0041] In conclusion, the utility model can position the catalytic converter cylinder and end cone as a whole through the cylinder positioning module and the hole positioning module. The flange fixing module clamps the to-be-welded flange to realize positioning. The pushing mechanism pushes the flange clamp to move to accurately abut against the air inlet of the end cone. The flange and the to-be-welded position are accurate. The position between the flange and the to-be-welded position is stable during the welding process. The flange does not deform and displace. The welding quality is improved.

[0042] The utility model will be further described in combination with the drawings and specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0043] Figure 1 It is the structure schematic diagram of the utility model;

[0044] Figure 2 It is the structure schematic diagram of the flange fixing module of the utility model;

[0045] Figure 3 It is the sectional structure schematic diagram of the flange fixing module of the utility model;

[0046] Figure 4 It is the structure schematic diagram of the hole positioning module of the utility model;

[0047] Figure 5 It is the structure schematic diagram of the cylinder positioning module of the utility model;

[0048] Figure 6 It is the structure schematic diagram of the supporting part of the utility model;

[0049] Figure 7 It is the structure schematic diagram of the workpiece of the utility model.

[0050] In the accompanying drawings: 100-base, 200-cylinder positioning module, 210-cylinder bottom edge positioning part, 211-support, 211a-support arm, 212-bracket, 213-cylinder bottom edge positioning block, 214-cylinder bottom edge positioning plate, 220-cylinder centering clamping part, 221-third support seat, 222-centering cylinder, 223-clamping plate, 224-pad, 225-first slide rail, 226-first slider, 227-third handle, 228-third slide hole, 230-arc-shaped baffle, 240-mounting arm, 300-hole positioning module, 310-positioning member, 320-second support seat, 330-third telescopic cylinder, 340-cantilever, 350-guide block, 360-guide rod, 400-flange fixing module, 410-first support Seat, 420-sliding seat, 430-flange clamp, 431-support plate, 431a-first make way, 432-flange positioning plate, 433-mounting frame, 433a-mounting cavity, 433b-second make way, 434-driving frame, 435-flange clamp, 435a-claw head, 435b-claw body, 435c-long strip hole, 436-flange pressure plate, 440-telescopic drive member, 441-first telescopic cylinder, 442-first handle, 443-first sliding hole, 444-support block, 450-pushing mechanism, 451-second telescopic cylinder, 452-driving head, 452a-sliding column, 453-first vertical plate, 454-driving seat, 454a-second sliding hole, 455-second handle, 456-support rod, 457-first connecting rod. DETAILED DESCRIPTION

[0051] With reference to the accompanying drawings, specific embodiments of the present invention will be described in detail.

[0052] Reference Figures 1 to 7 The utility model provides an embodiment of an air intake flange welding tool.

[0053] An intake flange welding tool comprises a base 100, a cylinder positioning module 200, a hole positioning module 300, and a flange fixing module 400. The base 100 supports the modules, the cylinder positioning module 200 and the hole positioning module 300 are used to install the welded catalyst cylinder and end cone assembly, and the flange fixing module 400 is used to install the flange to be welded.

[0054] The cylinder positioning module 200 includes a cylinder bottom edge positioning portion 210 and a cylinder centering clamping portion 220 provided on the base 100. The cylinder bottom edge positioning portion 210 accurately positions the bottom edge of the catalyst cylinder, that is, determines the height of the catalyst cylinder; the cylinder centering clamping portion 220 clamps the catalyst cylinder around the peripheral wall to secure the catalyst cylinder, thereby achieving centering of the catalyst cylinder.

[0055] The hole positioning module 300 is provided on the base 100 and includes a positioning member 310 that matches the hole position of the end cone. When in use, the positioning member 310 is inserted into the hole position of the end cone to position and prevent the end cone from rotating.

[0056] The flange fixing module 400 includes a first support seat 410 provided on the base 100, a sliding seat 420 slidably provided on the first support seat 410, and a flange fixture 430 provided on the sliding seat 420. The sliding seat 420 is moved by a pushing mechanism 450. At this time, the first support seat 410 is used to support the flange fixture 430 and the sliding seat 420. The sliding seat 420 is set so that the flange fixture 430 can move relative to the first support seat 410 to adjust the position of the flange fixture 430. The flange fixture 430 is used to press and fix the flange and position the flange. When the flange to be welded is fixed on the flange fixture 430, the sliding seat 420 is pushed by the pushing mechanism 450 to move on the first support seat 410 and approach the cylinder positioning module 200, so that the flange and the air inlet of the end cone are docked, and the flange hole is inserted into the air inlet of the end cone, so as to achieve precise positioning of the flange and the air inlet of the end cone and keep the positions of the two stable.

[0057] During use, first install the welded catalyst cylinder and end cone. The cylinder bottom edge positioning portion 210 locates the bottom edge of the catalyst cylinder, and the cylinder centering clamping portion 220 clamps the outer peripheral wall of the catalyst cylinder to achieve centering of the catalyst cylinder. The positioning member 310 of the hole positioning module 300 is inserted into the hole position of the end cone to position and prevent the welded catalyst cylinder and end cone from rotating. The flange to be welded is fixed by the flange clamp 430 of the flange fixing module 400, and the flange is pressed and fixed. Then, the sliding seat 420 is pushed on the first support seat 410 toward the air inlet of the end cone by the pushing mechanism 450, and the flange hole is inserted into the air inlet of the end cone to complete the installation and positioning of the two, and then the flange is welded. In this way, precise docking with the end cone air inlet can be achieved, ensuring the accuracy of the flange and the position to be welded, ensuring the stability of the position between the two during the flange welding process, and preventing deformation and displacement, thereby improving the welding quality.

[0058] In some embodiments, see Figures 1 to 3 The flange clamp 430 includes a support plate 431, a mounting frame 433, a driving frame 434 and multiple flange clamps 435. The support plate 431 supports the mounting frame 433, the driving frame 434 and the flange clamps 435. The mounting frame 433 is used to install the flange clamps 435, and the driving frame 434 drives the flange clamps 435 to press the flange.

[0059] The support plate 431 is fixed on the sliding seat 420, and a plurality of first accommodation openings 431a are arranged on the support plate 431. A flange positioning disc 432 is arranged on the support plate 431.

[0060] The mounting frame 433 is arranged on the side of the support plate 431 away from the barrel positioning module 200, and a mounting cavity 433a is arranged on the mounting frame 433. A plurality of second accommodation openings 433b corresponding to the first accommodation openings 431a are arranged on the peripheral wall of the mounting cavity 433a. The mounting frame 433 comprises a first mounting disc fixed on the support plate 431, a guide cylinder fixed on the first mounting disc, and a second mounting disc fixed on the other end of the guide cylinder. The second accommodation openings 433b are arranged on the peripheral wall of the guide cylinder, and the inner cavity of the guide cylinder forms the mounting cavity 433a for accommodating the driving frame 434. Further, the two side walls of the second accommodation opening 433b are provided with outwardly extending support plates, and the two support plates jointly support a hinge shaft. The flange positioning disc 432 is arranged on the side of the first mounting disc away from the guide cylinder. Specifically, the flange positioning disc 432 is mounted on the first mounting disc by bolts, and the flange positioning disc 432 can be conveniently replaced.

[0061] The driving frame 434 is located in the mounting cavity 433a and moves through the telescopic driving member 440. Further, the driving frame 434 comprises a driving rod and a mounting arm 240 arranged on the driving rod. The mounting arm 240 is arranged in a plurality of groups and uniformly distributed along the circumference of the driving rod. The number of mounting arms 240 corresponds to the number of flange clamping jaws 435.

[0062] In this embodiment, the flange clamping jaw 435 is provided with three groups. The claw head 435a of the three flange clamping jaws 435 is located on the side of the support plate 431 away from the mounting frame 433 and extends towards the center, and the claw head 435a is used to press the flange on the flange positioning disc 432. Further, the claw head 435a is further fixed with a flange pressing plate 436. A plurality of flange pressing plates 436 are arranged to form a ring shape corresponding to the shape of the flange. The flange pressing plate 436 is arranged in an arc shape and has a connecting block connected with the claw head 435a in the middle. The side of the flange pressing plate 436 facing the flange has a pressing surface corresponding to the shape of the flange surface. The shape of the pressing surface is not limited, and the flange surface shape is the best choice. When the flange clamping jaw 435 is pressed on the flange surface, the pressing surface is attached to the flange surface. In this way, a plurality of flange pressing plates 436 are pressed on the flange surface, which can not only ensure the pressing effect of the flange, but also protect the flange surface during welding, thereby improving the smoothness and flatness of the flange.

[0063] The ends of the three flange clamping jaws 435b, away from the claw heads 435a, are provided with elongated holes 435c that slidably engage with the first pin on the drive frame 434. Furthermore, the first pin is mounted on the mounting arm 240 of the drive frame 434. The other ends of the jaws 435b extend through the second clearance opening 433b and the first clearance opening 431a, respectively, to connect with the jaw heads 435a. The middle portion of the jaws 435b is hingedly connected to the mounting frame 433. Furthermore, the middle portion of the jaws 435b is hingedly connected to a hinge shaft located on the second clearance opening 433b.

[0064] In this way, when the drive frame 434 moves in the mounting cavity 433a, the first pin shaft slides in the elongated hole 435c and drives the claw body 435b to rotate around the hinge with the mounting frame 433, thereby driving the claw head 435a of each flange clamp to tighten or loosen the flange on the flange positioning plate 432.

[0065] In some embodiments, see Figures 1 to 3 The telescopic driving member 440 includes a first telescopic cylinder 441 and a first handle 442. The first telescopic cylinder 441 can be a pneumatic cylinder, a hydraulic cylinder, etc., as long as it can realize the movement of the driving frame 434 in the installation cavity 433a.

[0066] The first telescopic cylinder 441 is arranged on the side of the mounting frame 433 away from the support plate 431, and one end of the telescopic rod of the first telescopic cylinder 441 is fixed to the driving frame 434; the telescopic rod of the first telescopic cylinder 441 moves, driving the driving frame 434 to move in the mounting cavity 433a, driving the flange clamp to tighten or loosen the flange.

[0067] The bottom of the first handle 442 is provided with a first sliding hole 443 that is movably connected to the other end of the telescopic rod of the first telescopic cylinder 441. The middle portion is hingedly connected to a support block 444 fixed to the first telescopic cylinder 441. Due to the use of a pneumatic or hydraulic cylinder, the flange clamping jaws often have two states: clamped or completely released. The configuration of the first handle 442 allows for flexible control of the state of the flange clamping jaws and serves as a safety measure in the event of a malfunction of the first telescopic cylinder 441.

[0068] In some embodiments, see Figures 1 to 3 The pushing mechanism 450 includes a second telescopic cylinder 451, a driving head 452, a driving seat 454 and a second handle 455. Similarly, the second telescopic cylinder 451 can also be a pneumatic cylinder, a hydraulic cylinder, etc.

[0069] The second telescopic cylinder 451 is fixed to the first vertical plate 453 provided on the first support base 410. The drive head 452 is fixed to the telescopic end of the second telescopic cylinder 451. The drive head 452 has a slide post 452a. The drive base 454 is fixed to the sliding base 420 and movably connected to the drive head 452. The drive base 454 has a second sliding hole 454a that slidably engages with the slide post 452a. Furthermore, the axial direction of the second sliding hole 454a is the same as the telescopic direction of the second telescopic cylinder 451. In this case, when the telescopic end of the second telescopic cylinder 451 extends and retracts, driving the drive head 452, the slide post 452a on the drive head 452 slides within the second sliding hole 454a. When the sliding column 452a abuts against the end of the second sliding hole 454a away from the second telescopic cylinder 451, the sliding column 452a pushes the driving seat 454 to move in the direction away from the second telescopic cylinder 451, thereby driving the sliding seat 420 to move in the direction close to the end cone air inlet; the sliding column 452a moves in the second sliding hole 454a toward the second telescopic cylinder 451, and abuts against the end close to the second sliding hole 454a close to the second telescopic cylinder 451, and continues to move to drive the driving seat 454 to move in the direction close to the second telescopic cylinder 451, thereby driving the sliding seat 420 to move in the direction away from the end cone air inlet.

[0070] The second handle 455 is L-shaped, with one end hinged to a support rod 456 provided on the first vertical plate 453, and the middle portion hinged to one end of a first connecting rod 457. The other end of the first connecting rod 457 is hinged to the drive seat 454. When the second handle is rotated, the axes of the first connecting rod 457 and the horizontal section of the second handle 455 become coaxial, forming a dead-point mechanism that locks the distance between the first vertical plate 453 and the drive seat 454, ensuring the stability of the sliding seat 420. Furthermore, during the flange welding process, the sliding seat 420 is displaced, improving welding accuracy.

[0071] When the sliding seat 420 needs to be moved away from the cylinder centering clamping portion 220, the second handle 455 is pulled, forming an angle between the first connecting rod 457 and the horizontal section of the second handle 455, thereby unlocking the dead point mechanism. At this time, since the first vertical plate 453 is fixed, the second handle 455 is pulled, and when the sliding seat 420 retracts, the slide post 452a on the drive head 452 slides within the second slide hole 454a.

[0072] In some embodiments, see Figure 4 The hole positioning module 300 includes a second support base 320, a third telescopic cylinder 330, a cantilever 340, and a guide portion. The second support base 320 is used to support the third telescopic cylinder 330, the cantilever 340, and the guide portion. The third telescopic cylinder 330 can be a pneumatic cylinder, a hydraulic cylinder, or the like.

[0073] The second supporting seat 320 is arranged on the base 100, the third telescopic cylinder 330 is arranged on the second supporting seat 320, one end of the cantilever 340 is connected with the telescopic end of the third telescopic cylinder 330, and the positioning piece 310 is arranged on the cantilever 340. The cantilever 340 is driven to move by the telescopic movement of the third telescopic cylinder 330, and the positioning piece 310 is inserted into the hole position of the end cone, so that the end cone and the catalytic converter cylinder are positioned and the rotation is stopped at the same time.

[0074] The guide part comprises a guide block 350 provided with a guide hole on the second supporting seat 320 and a guide rod 360 movably arranged in the guide hole, and one end of the guide rod 360 is fixed with the cantilever 340. Through the arrangement of the guide part, the stability of the cantilever 340 is improved.

[0075] In some embodiments, referring to Figure 5 and Figure 6 The cylinder centering and clamping part 220 comprises a third supporting seat 221, a centering cylinder 222 and a clamping plate 223. The centering cylinder 222 and the clamping plate 223 are supported by the third supporting seat 221.

[0076] The third supporting seat 221 is arranged on the base 100, the centering cylinder 222 is arranged on the third supporting seat 221, and the clamping plate 223 is provided with two groups and is connected with the telescopic ends of the centering cylinder 222 respectively. The clamping plate 223 is provided with a pad 224. Through the telescopic movement of the two telescopic rods of the centering cylinder 222, the two groups of clamping plates 223 are driven to move towards or away from each other, so that the catalytic converter cylinder is centered and clamped. Further, adjustment shims are arranged between the pad 224 and the clamping plate 223, so that the flexibility of the device is increased.

[0077] Further, the lower side of the third supporting seat 221 is further provided with a first sliding rail 225, and two groups of first sliding blocks 226 are slidingly matched with the first sliding rail 225, and the two groups of first sliding blocks 226 are fixed with the bottoms of the two groups of clamping plates 223 respectively. Through the cooperation of the first sliding rail and the first sliding block, the movement of the two clamping plates 223 can be guided, and the stability can be improved.

[0078] Further, a third handle 227 is further included, the bottom end of the third handle 227 is hinged with the third supporting seat 221, a third sliding hole 228 is arranged in the middle part, and the third sliding hole 228 is movably connected with a second pin shaft arranged on the clamping plate 223. At this time, through the arrangement of the third handle 227, the initial positions of the two clamping plates 223 can be flexibly adjusted, the catalytic converter cylinder is positioned, and when the centering cylinder 222 is started, the clamping plate 223 does not impact the catalytic converter cylinder under a large stroke, and the catalytic converter cylinder is prevented from being damaged.

[0079] In some embodiments, referring to Figure 5 and Figure 6The bottom edge positioning portion 210 of the cylinder body includes a support 211, a bottom edge positioning block 213 and a bottom edge positioning plate 214. The support 211 supports the bottom edge positioning block and the bottom edge positioning plate 214. The bottom edge positioning portion 210 of the cylinder body can be tilted, and its tilt angle is set according to welding requirements.

[0080] Furthermore, the support member 211 is mounted on the third support seat 221 via a bracket 212 and is located above the centering cylinder 222. The support member 211 has a plurality of arms 211a radiating outward from the center. The cylinder bottom edge positioning blocks 213 are located on the outwardly extending ends of the arms 211a. The cylinder bottom edge positioning disk 214 is located on the upper side of the support member 211 and has a notch to accommodate the cylinder bottom edge positioning blocks 213. At this point, the bottom edge of the catalyst cylinder is positioned by the cylinder bottom edge positioning blocks 213 and the cylinder bottom edge positioning disk 214. Furthermore, an adjustment gasket is provided between the cylinder bottom edge positioning blocks 213 and the arms 211a to flexibly adjust the height of the cylinder fixed edge positioning blocks.

[0081] Furthermore, a curved shielding plate 230 is included. The curved shielding plate 230 is provided on the clamping plate 223 and / or the mounting arm 240. One end of the mounting arm 240 is fixed to the bracket 212. In this embodiment, two curved shielding plates 230 are provided, one of which is fixed to the pad 224 on one of the clamping plates 223, and the other curved shielding plate 230 is fixed to the mounting arm 240 on the side closer to the flange. The provision of the curved shielding plates 230 can protect the marking on the catalyst cylinder.

[0082] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0083] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An air intake flange welding tool, characterized in that: include: base(100); A cylinder positioning module (200) comprises a cylinder bottom edge positioning portion (210) and a cylinder centering clamping portion (220) provided on the base (100); A hole position positioning module (300) is provided on the base (100), and the hole position positioning module (300) comprises a positioning member (310) that cooperates with the hole position of the end cone; The flange fixing module (400) comprises a first supporting seat (410) provided on a base (100), a sliding seat (420) slidably provided on the first supporting seat (410), and a flange clamp (430) provided on the sliding seat (420), wherein the sliding seat (420) is moved by a pushing mechanism (450).

2. The air intake flange welding tool according to claim 1, characterized in that: The flange fixture (430) comprises: A support plate (431) is fixed on the sliding seat (420), the support plate (431) has a plurality of first paving openings (431a), and a flange positioning plate (432) is provided on the support plate (431); A mounting frame (433) is provided on a side of the support plate (431) away from the cylinder positioning module (200), the mounting frame (433) having a mounting cavity (433a), and a peripheral wall of the mounting cavity (433a) is provided with a plurality of second paving openings (433b) corresponding to the first paving openings (431a); A drive frame (434) is located in the installation cavity (433a) and is moved by a telescopic drive member (440); A plurality of flange clamping jaws (435), wherein the claw heads (435a) of the plurality of flange clamping jaws (435) are located on a side of the support plate (431) away from the mounting frame (433) and extend toward the center, and a claw body (435b) of the plurality of flange clamping jaws (435) is provided with a long hole (435c) at one end away from the claw head (435a) that is slidably engaged with a first pin shaft on the driving frame (434), and the other end of the claw body (435b) passes through the second clearance opening (433b) and the first clearance opening (431a) in sequence to be connected to the claw head (435a), and the middle part of the claw body (435b) is hinged to the mounting frame (433).

3. The air intake flange welding tool according to claim 2, characterized in that: It also includes multiple groups of flange pressing plates (436), which are fixed to the claw head (435a). The multiple groups of flange pressing plates (436) are enclosed to form a ring shape that is adapted to the shape of the flange.

4. The air intake flange welding tool according to claim 2, characterized in that: The telescopic driving member (440) comprises: A first telescopic cylinder (441) is provided on a side of the mounting frame (433) away from the support plate (431), and one end of a telescopic rod of the first telescopic cylinder (441) is fixed to the driving frame (434); The first handle (442) has a first sliding hole (443) at its bottom for movably connecting to the other end of the telescopic rod of the first telescopic cylinder (441), and a middle portion hinged to a support block (444) fixed to the first telescopic cylinder (441).

5. The air intake flange welding tool according to claim 1, characterized in that: The pushing mechanism (450) comprises: The second telescopic cylinder (451) is fixed to the first vertical plate (453) provided on the first supporting seat (410). The driving head (452) is fixed to the telescopic end of the second telescopic cylinder (451), and the driving head (452) has a sliding column (452a). A driving seat (454) is fixed to the sliding seat (420) and movably connected to the driving head (452), and the driving seat (454) has a second sliding hole (454a) that is slidably matched with the sliding column (452a); The second handle (455) is arranged in an L-shape, one end of the second handle (455) is hinged to a support rod (456) provided on the first vertical plate (453), the middle part is hinged to one end of a first connecting rod (457), and the other end of the first connecting rod (457) is hinged to the driving seat (454).

6. The air intake flange welding tool according to claim 1, characterized in that: The hole position positioning module (300) comprises: A second support seat (320) is provided on the base (100); a third telescopic cylinder (330) disposed on the second supporting seat (320); A cantilever (340) has one end connected to the telescopic end of the third telescopic cylinder (330), and the positioning member (310) is provided on the cantilever (340). The guide portion comprises a guide block (350) provided on the second support seat (320) and having a guide hole, and a guide rod (360) movably provided in the guide hole, wherein one end of the guide rod (360) is fixed to the cantilever (340).

7. The air intake flange welding tool according to claim 1, characterized in that: The cylinder centering clamping portion (220) comprises: The third support seat (221) is provided on the base (100), A centering cylinder (222) is provided on the third support seat (221); Two groups of clamping plates (223) are provided and are respectively connected to the telescopic ends of the centering cylinder (222), and pads (224) are provided on the clamping plates (223); A first slide rail (225) is provided on the lower side of the third support seat (221); The two groups of first sliding blocks (226) are respectively fixed to the bottoms of the two groups of clamping plates (223), and the first sliding blocks (226) are slidably matched with the first slide rails (225).

8. The air intake flange welding tool according to claim 7, characterized in that: The third handle (227) is further provided with a third handle (227), the bottom end of which is hinged to the third support seat (221), and a third sliding hole (228) is provided in the middle thereof, and the third sliding hole (228) is movably connected to a second pin provided on the clamping plate (223).

9. The air intake flange welding tool according to claim 7, characterized in that: The cylinder bottom edge positioning portion (210) comprises: A support member (211) is disposed on the third support seat (221) via a bracket (212), wherein the support member (211) has a plurality of support arms (211a) radiating outward from a center; A cylinder bottom edge positioning block (213) is provided on the outwardly extending end of the support arm (211a); The cylinder bottom edge positioning plate (214) is arranged on the upper side of the support member (211) and has a notch for making way for the cylinder bottom edge positioning block (213).

10. The air intake flange welding tool according to claim 9, characterized in that: It also includes an arc-shaped shielding plate (230), wherein the arc-shaped shielding plate (230) is provided on the clamping plate (223) and / or the mounting arm (240), and one end of the mounting arm (240) is fixed to the bracket (212).

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