Welding tool for flange assembly between tail end of exhaust system and engine

Abstract

The utility model provides a welding tool for a flange assembly between the tail end of an exhaust system and an engine. The flange feeding assembly module is arranged on one side of the top end of the bottom plate through bolt connection; the flange limiting and fastening module sleeves the top of a guide rail in the flange end pushing and assembling module; the end cone inner and outer supporting module is arranged on the side, away from the flange end pushing and assembling module, of the bottom plate through bolt connection. The bottom of the end cone side hole supporting module is obliquely arranged between the flange end pushing assembly module and the end cone inner and outer supporting module through bolt connection, and one side of the top of the end cone side hole supporting module extends in the direction of the end cone inner and outer supporting module. The bottom plate, the flange end pushing and assembling module, the flange limiting and fastening module, the end cone inner and outer supporting module and the end cone side hole supporting module are adopted, an end cone needing to be welded and a flange end are positioned and assembled before welding, and the end cone with low part strength is supported during welding to prevent deformation of the end cone.

Description

Technical Field

[0001] The utility model relates to the field of welding, in particular to the technical field of complex parts welding tooling, and specifically to a welding tooling for a flange assembly between a tail end of an exhaust system and an engine. Background Art

[0002] The flange assembly that needs to be processed is arranged between the tail end of the exhaust system and the engine, and is composed of a flange and an end cone through welding. The inner wall of the end cone has many thin curved surfaces with complex shapes, and an air port is also opened. If it is not protected during welding, it is very easy to cause deformation due to welding stress, and for the overall beauty during welding, the weld cannot be conspicuous on the outside. It is necessary to clamp one side of the end cone in the connecting hole in the middle of the flange, and weld the port on one side of the end cone to the inner wall of the flange connecting hole to connect the two. If a positioning module is required to prevent the positions of the two from shifting during welding, manual welding or welding with an automatic welding machine using existing tooling fixtures cannot meet the processing accuracy of the part while completing the processing, so it is necessary to design a welding tool. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a welding tool for a flange assembly between the tail end of an exhaust system and an engine, so as to solve the difficulties of the prior art.

[0004] In order to achieve the above-mentioned purpose and other related purposes, the utility model provides a welding tool for a flange assembly between the tail end of an exhaust system and an engine, comprising:

[0005] Bottom plate 1;

[0006] A flange end push assembly module 2, wherein the flange feed assembly module is arranged on one side of the top end of the base plate 1 through bolt connection;

[0007] A flange limiting and fastening module 3, wherein the flange limiting and fastening module 3 is sleeved on the top of the guide rail 24 in the flange end pushing assembly module 2;

[0008] The end cone inner and outer supporting module 4 is arranged on a side of the bottom plate 1 away from the flange end pusher assembly module 2 through bolt connection;

[0009] The end cone side hole support module 5, the bottom of which is obliquely arranged between the flange end pusher assembly module 2 and the end cone inner and outer support module 4 through bolt connection, and one side of the top of the end cone side hole support module 5 extends toward the end cone inner and outer support module 4.

[0010] According to the preferred embodiment, the flange end pusher assembly module 2 comprises:

[0011] A height adjustment slot 21, the height adjustment slot 21 is opened on one side of the top of the bottom plate 1, and a No. 1 push rod clamp 22 is provided in the middle of the height adjustment slot 21 through bolt connection;

[0012] A guide rail positioning groove 23, wherein the guide rail positioning groove 23 is provided at the top of the bottom plate 1 in a direction away from the height adjustment groove 21, and the guide rail positioning groove 23 is located at the left and right sides of the top push rod of the No. 1 push rod clamp 22;

[0013] A guide rail 24, which is connected by bolts and arranged at the bottom of the guide rail positioning groove 23, and a slider 25 is sleeved on the top of the guide rail 24;

[0014] The slide 26 is arranged just above the guide rail 24. The left and right sides of the bottom of the slide 26 are connected to the slider 25 by bolts. A No. 1 T-shaped groove 27 is opened on one side of the slide 26. The No. 1 T-shaped groove 27 is sleeved on the outer side of the top push rod of the No. 1 push rod clamp 22.

[0015] According to the preferred solution, the flange limiting and fastening module 3 includes:

[0016] A slide connecting plate 31, wherein the slide connecting plate 31 is connected by bolts and is arranged on a side of the top of the slide 26 away from the first push rod clamp 22;

[0017] An L-shaped mounting plate, the L-shaped mounting plate is connected with bolts and arranged on the top of the slide connecting plate 31, the L-shaped mounting plate is respectively formed by welding a horizontal plate 32 and a vertical plate 33, the horizontal plate 32 is arranged on the top of the slide connecting plate, the vertical plate 33 is arranged on the side of the top of the horizontal plate 32 away from the No. 1 push rod clamp 22, a No. 1 positioning hole 34 is arranged in the middle of the top of the vertical plate 33, and a square groove 35 for making way is arranged at the bottom of the vertical plate 33;

[0018] A boss sleeve 36, wherein the boss sleeve 36 is disposed in the first positioning hole 34 by welding;

[0019] A flange mounted heat sink 37 is provided on the side of the No. 1 positioning hole 34 away from the No. 1 push rod clamp 22. The flange mounted heat sink 37 is connected to the vertical plate 33 by bolts. A No. 2 positioning hole 38 is provided in the middle of the flange mounted heat sink 37. The No. 2 positioning hole 38 is coaxially arranged with the No. 1 positioning hole 34. Locking bolts 39 are provided on the left and right sides of the flange mounted heat sink 37.

[0020] The flange-limiting and clamping cylinder modules are respectively arranged at the top and bottom of the vertical plate 33 .

[0021] According to the preferred embodiment, the flange limiting clamping cylinder module includes: a cylinder mounting plate 310, an L-shaped pressure head 312 and a cylinder 313. The cylinder mounting plate 310 is respectively arranged on the top and bottom of the vertical plate 33 near the No. 1 push rod clamp 22. The top of the cylinder mounting plate 310 arranged on the top of the vertical plate 33 extends vertically upward to the side away from the vertical plate 33, and the bottom of the cylinder mounting plate 310 arranged at the bottom of the vertical plate 33 extends in the direction of the square groove 35. The top and bottom of the cylinder mounting plate 310 are arranged near the flange mounting heat sink 37. The circular arc rotating joint 311 in the cylinder mounting plate 310 arranged at the bottom of the vertical plate 33 extends forward into the square groove 35. One side of the top of the swing clamping cylinder 48 is sleeved on the circular arc-shaped rotating joint 311 of the cylinder mounting plate 310 away from the outer side of the extension line of the central axis of the No. 2 positioning hole 38, and the swing clamping cylinder 48 is connected to the circular arc-shaped rotating joint 311 through a rotating shaft. The top of the L-shaped pressure head 312 is located on the top or bottom of the flange-mounted heat sink 37 away from the side of the No. 1 push rod clamp 22, and one side of the bottom of the L-shaped pressure head 312 is sleeved on the circular arc-shaped rotating joint 311 of the cylinder mounting plate 310 close to the outer side of the extension line of the central axis of the No. 2 positioning hole 38, and the other side of the bottom of the L-shaped pressure head 312 is sleeved on the bottom of the swing clamping cylinder 48, and the bottom of the L-shaped pressure head 312 is respectively connected to the circular arc-shaped rotating joint 311 and the swing clamping cylinder 48 through a rotating shaft.

[0022] According to the preferred embodiment, the end cone inner and outer support module 4 includes:

[0023] An inverted T-shaped mounting block 41, which is bolted and arranged on the top of the bottom plate 1 and located on a side of the guide rail 24 away from the first push rod clamp 22;

[0024] A step positioning groove 42, wherein the step positioning groove 42 is provided on a side of the inverted T-shaped mounting block 41 away from the guide rail 24;

[0025] A mounting cross block 43, the bottom of which is placed at the bottom of the step positioning groove 42, and the side wall of which is connected to the groove wall of the step positioning groove 42 on the side close to the guide rail 24 by bolts;

[0026] A clamping block 44, which is connected by bolts and arranged on the top of the inverted T-shaped mounting block 41 near the side of the flange-mounted heat sink 37, and the side walls around the clamping block 44 are evenly spaced with distance adjustment holes 411, and the clamping block 44 is surrounded by L-shaped claws 45, and the L-shaped claws 45 are evenly spaced through the middle of the distance bolts, and the bottom of the distance bolts is clamped in the distance adjustment hole 411, and the outer side wall of the L-shaped claw 45 near the side of the flange-mounted heat sink 37 is in an arc shape;

[0027] A square column 46, which is welded in the middle of the clamping block 44, with the top of the square column 46 extending straight toward the second positioning hole 38 toward the side of the guide rail 24, and an end cone heat dissipation positioning block 47 sleeved on the top of the square column 46;

[0028] The clamping cylinder 48 is arranged on the left and right sides of the mounting cross block 43 by bolt connection, and a semi-trapezoidal pressure block 49 is arranged on the top of the clamping cylinder 48 by bolt connection, and the top of the semi-trapezoidal pressure block 49 is located in the direction of the clamping block 44 close to the second positioning hole 38, and a circular arc-shaped pressure surface is arranged on the top of the semi-trapezoidal pressure block 49 close to the clamping block 44.

[0029] According to a preferred embodiment, the end cone heat dissipation positioning block 47 is coaxially arranged with the second positioning hole 38 .

[0030] According to a preferred embodiment, a rubber buffer block 410 is provided between the clamping block 44 and the L-shaped claw 45 .

[0031] According to the preferred embodiment, the end cone side hole support module 5 includes:

[0032] A positioning bracket 51, the positioning bracket 51 is obliquely arranged at the top of the bottom plate 1 between the guide rail positioning groove 23 and the inverted T-shaped mounting block 41 through bolt connection, the top of the positioning bracket 51 is provided with an inclined side wall away from the inverted T-shaped mounting block 41, the top of the side wall is provided with an orienting plate 52 through bolt connection, and the orienting plate 52 is provided with a T-shaped positioning block through bolt connection on the side away from the inverted T-shaped mounting block 41;

[0033] The T-shaped positioning block includes: a T-transverse plate 53 and a T-vertical plate 54, which are welded together, and the T-vertical plate 54 is arranged on the side of the T-transverse plate 53 away from the positioning bracket 51 and close to the middle part, and the bottom of the T-transverse plate 53 is connected to the directional plate 52 by bolts, and the top of the T-transverse plate 53 extends obliquely toward the direction of the pressing cylinder 48, and a directional hole is opened on the top of the T-transverse plate 53;

[0034] A plug rod 55, the plug rod 55 is inserted into the directional hole, a plug head 58 is provided on one side of the plug rod 55 close to the pressing cylinder 48, and a second T-shaped groove 56 is provided on the other side of the plug rod 55;

[0035] The No. 2 push rod clamp 57 is arranged on the top of the T vertical plate 54 through bolt connection, and the top push rod of the No. 2 push rod clamp 57 is clamped in the No. 2 T-shaped groove 56.

[0036] The utility model adopts a bottom plate, a flange end push assembly module, a flange limit fastening module, an end cone inner and outer support module and an end cone side hole support module, and positions and assembles the end cone and flange end to be welded before welding, and supports the end cone with lower strength of the part to prevent its deformation during welding; the following beneficial effects are achieved:

[0037] (1) Automatically assemble it;

[0038] (2) Prevent welding deformation;

[0039] The best embodiment of the present invention will be described in more detail below in conjunction with the accompanying drawings so that the features and advantages of the present invention can be easily understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 The display is a three-dimensional structural schematic diagram of the utility model;

[0041] Figure 2 Shown is a three-dimensional structural schematic diagram of the utility model after assembly from another viewing angle;

[0042] Figure 3 It shows an enlarged schematic diagram of the three-dimensional structure of the flange end push material assembly module in the present utility model;

[0043] Figure 4 Shown is an enlarged schematic diagram of the three-dimensional structure of the flange limiting and fastening module in the present utility model;

[0044] Figure 5 Shown is an enlarged schematic diagram of the three-dimensional structure of the cylinder mounting plate in the utility model;

[0045] Figure 6 It shows an enlarged schematic diagram of the three-dimensional structure of the inner and outer support modules of the end cone in the present invention;

[0046] Figure 7 The display is an enlarged schematic diagram of the three-dimensional structure of the inverted T-shaped mounting block in the present utility model;

[0047] Figure 8 It shows an enlarged schematic diagram of the three-dimensional structure of the end cone side hole support module in the present invention;

[0048] Fig. 9 The display is an enlarged schematic diagram of the three-dimensional structure of the boss sleeve in the utility model.

[0049] Fig.10 An enlarged schematic diagram showing the flange assembly required for welding between the tail end of the exhaust system and the engine in the present invention

[0050] Description of symbols

[0051] 1. Bottom plate;

[0052] 2. Flange end push material assembly module; 21. Height adjustment slot; 22. Push rod clamp No. 1; 23. Guide rail positioning slot; 24. Guide rail; 25. Slider; 26. Slide; 27. No. 1 T-shaped slot;

[0053] 3. Flange limit fastening module; 31. Slide connecting plate; 32. Horizontal plate; 33. Vertical plate; 34. Positioning hole No. 1; 35. Square groove for making way; 36. Boss sleeve; 37. Flange mounting heat sink; 38. Positioning hole No. 2; 39. Locking bolt; 310. Cylinder mounting plate; 311. Arc-shaped rotary joint; 312. L-shaped pressure head; 313. Cylinder;

[0054] 4. End cone inner and outer support module; 41. Inverted T-shaped mounting block; 42. Step positioning groove; 43. Mounting cross block; 44. Clamping block; 45. L-shaped claw; 46. Square column; 47. End cone heat dissipation positioning block; 48. Clamping cylinder; 49. Semi-trapezoidal pressing block; 410. Rubber buffer block; 411. Distance adjustment hole;

[0055] 5. End cone side hole support module; 51. Positioning bracket; 52. Orientation plate; 53. T horizontal plate; 54. T vertical plate; 55. Plug rod; 56. No. 2 T-shaped groove; 57. No. 2 push rod clamp; 58. Plug head; DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solution and advantages of the technical solution of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described in conjunction with the drawings of the specific embodiments of the utility model. The same figure marks in the drawings represent the same parts. It should be noted that the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0057] Compared with the embodiments shown in the drawings, feasible implementations within the scope of protection of the present invention may have fewer components, other components not shown in the drawings, different components, differently arranged components, or differently connected components, etc. In addition, two or more components in the drawings may be implemented in a single component, or a single component shown in the drawings may be implemented as multiple separate components.

[0058] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not necessarily indicate quantity restrictions. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0059] The utility model proposes a welding tool for a flange assembly between the tail end of an exhaust system and an engine, which is used in a welding protection process. The utility model does not limit the specifications of the flange assembly to be welded, but the base plate 1, the flange end pushing assembly module 2, the flange limiting and fastening module 3, the end cone inner and outer support module 4 and the end cone side hole support module 5 structure are particularly suitable for positioning and assembling the end cone and the flange end to be welded before welding, and supporting the end cone with lower part strength to prevent its deformation during welding.

[0060] In general, the welding tooling of the flange assembly between the tail end of the exhaust system and the engine proposed in the present invention mainly includes a base plate 1, a flange end push assembly module 2, a flange limit fastening module 3, an end cone inner and outer support module 4 and an end cone side hole support module 5, wherein, it can be seen Figure 1 , which shows the arrangement relationship of the base plate 1, the flange end pusher assembly module 2, the flange limit fastening module 3, the end cone inner and outer support module 4 and the end cone side hole support module 5.

[0061] The welding tool for the flange assembly between the tail end of the exhaust system and the engine provided by the utility model is used as follows Figure 2As shown in the figure, the tail of the end cone to be welded is sleeved on the outer side of the L-shaped claw 45 in the inner and outer support module 4 of the end cone, and the distance between the L-shaped claw 45 and the clamping block 44 is changed by adjusting the distance bolt, so that the arc-shaped outer wall of the L-shaped claw 45 is close to the inner wall of the end cone, and the top of the end cone is sleeved on the end cone heat dissipation positioning block 47, and the end cone is rotated to cooperate with the push rod clamp 57 to clamp the plug 58 into the air hole on the outer side of the end cone, and the clamping cylinder 48 is driven to limit the end cone on the L-shaped claw 45 to complete the end cone measurement and limit assembly, and then the left side of the flange to be welded is Insert the locking bolts 39 on the right sides and screw the locking bolts 39 into the flange mounting heat sink 37 to connect the flange to be welded with the flange mounting heat sink 37. Drive the cylinder 313 to drive the L-shaped pressing head 312 to return to the center so that the bottom side of the L-shaped pressing head 312 is in close contact with the side wall of the flange to be welded away from the flange mounting heat sink 37. Drive the No. 1 push rod clamp 22 to move the assembled flange to be welded forward along the guide rail so that one side of the end cone to be welded is inserted into the connecting hole in the middle of the flange to be welded.

[0062] The flange feed assembly module is arranged on one side of the top of the base plate 1 by bolt connection, and the flange feed assembly module comprises: a height adjustment slot 21, a guide rail positioning slot 23, a guide rail 24 and a slide 26, wherein the height adjustment slot 21 is opened on one side of the top of the base plate 1, and a No. 1 push rod clamp 22 is arranged in the middle of the height adjustment slot 21 by bolt connection, and a guide rail positioning slot 23 is opened at the top of the base plate 1 in the direction away from the height adjustment slot 21, and the guide rail positioning slot 23 is located on the left and right sides of the top push rod of the No. 1 push rod clamp 22, and a guide rail 24 is arranged at the bottom of the guide rail positioning slot 23 by bolt connection, and a slider 25 is sleeved on the top of the guide rail 24, and a slide 26 is arranged directly above the guide rail 24, and the left and right sides of the bottom of the slide 26 are connected to the slider 25 by bolt connection, and a No. 1 T-shaped slot 27 is opened on one side of the slide 26, and the No. 1 T-shaped slot 27 is sleeved on the outer side of the top push rod of the No. 1 push rod clamp 22, leaving a certain distance for the end cone to be welded and the flange to be welded to be assembled separately, so as to prevent bumps during assembly.

[0063] The above-mentioned flange limiting and fastening module 3 is sleeved on the top of the guide rail 24 in the flange end pushing assembly module 2, and the flange limiting and fastening module 3 includes: a slide connecting plate 31, an L-shaped mounting plate, a No. 1 positioning hole 34, a boss sleeve 36, a flange mounting heat dissipation plate 37 and a flange limiting and clamping cylinder module, wherein the slide connecting plate 31 is connected by bolts and is arranged on the side of the top of the slide 26 away from the No. 1 push rod clamp 22, the L-shaped mounting plate is connected by bolts and is arranged on the top of the slide connecting plate 31, and the L-shaped mounting plate is respectively composed of a horizontal plate 32 and a vertical plate 33 by welding, the horizontal plate 32 is arranged on the top of the slide connecting plate, the vertical plate 33 is arranged on the side of the top of the horizontal plate 32 away from the No. 1 push rod clamp 22, a No. 1 positioning hole 34 is arranged in the middle of the top of the vertical plate 33, and the vertical plate A square groove 35 is provided at the bottom of 33, and a boss sleeve 36 is provided in the No. 1 positioning hole 34 by welding to play a positioning role, and the boss sleeve 36 has high strength and high temperature resistance to prevent the vertical plate 33 from being bent and deformed by high temperature during welding. A flange-mounted heat sink 37 is provided on the side of the No. 1 positioning hole 34 away from the No. 1 push rod clamp 22, and a No. 2 positioning hole 38 is opened in the middle of the flange-mounted heat sink 37. The No. 2 positioning hole 38 is coaxially arranged with the No. 1 positioning hole 34. Locking bolts 39 are penetrated on the left and right sides of the flange-mounted heat sink 37. The flange to be welded is installed on the flange-mounted heat sink 37 by using its own connection characteristics. The flange limit clamping cylinder modules are respectively arranged at the top and bottom of the vertical plate 33, and the flange limit clamping cylinder module includes: a cylinder mounting plate 310, L-shaped pressure head 312 and cylinder 313, the cylinder mounting plate 310 is respectively arranged on the top and bottom of the side of the vertical plate 33 close to the No. 1 push rod clamp 22, the top of the cylinder mounting plate 310 arranged on the top of the vertical plate 33 extends vertically upward to the side away from the vertical plate 33, and the bottom of the cylinder mounting plate 310 arranged at the bottom of the vertical plate 33 extends in the direction of the square groove 35, and the top and bottom of the cylinder mounting plate 310 are close to the flange mounting heat sink 37. The circular arc swivel joint 311 in the cylinder mounting plate 310 arranged at the bottom of the vertical plate 33 extends forward into the square groove 35, and the top side of the swing clamping cylinder 48 is sleeved on the cylinder mounting plate 310 away from the center axis of the No. 2 positioning hole 38. On the arc-shaped rotating joint 311 outside the extension line, the swing clamping cylinder 48 is connected to the arc-shaped rotating joint 311 through a rotating shaft, the top of the L-shaped pressing head 312 is located on the top or bottom of the flange mounting heat sink 37 away from the No. 1 push rod clamp 22, one side of the bottom of the L-shaped pressing head 312 is sleeved on the arc-shaped rotating joint 311 outside the extension line of the central axis of the No. 2 positioning hole 38 of the cylinder mounting plate 310, and the other side of the bottom of the L-shaped pressing head 312 is sleeved on the bottom of the swing clamping cylinder 48. The bottom of the L-shaped pressing head 312 is respectively connected to the arc-shaped rotating joint 311 and the swing clamping cylinder 48 through a rotating shaft to prevent the flange from shaking during welding due to the locking bolt 39 not being tightened, resulting in the flange to be welded and the flange mounting heat sink 37 being in close contact.

[0064] The end cone inner and outer support module 4 is arranged on the side of the bottom plate 1 away from the flange end pusher assembly module 2 through bolt connection. The end cone inner and outer support module 4 includes: an inverted T-shaped mounting block 41, a step positioning groove 42, a mounting cross block 43, a clamping block 44, an L-shaped claw 45, a square column 46, and a clamping cylinder 48. The inverted T-shaped mounting block 41 is arranged on the top of the bottom plate 1 through bolt connection and is located on the side of the guide rail 24 away from the No. 1 push rod clamp 22. A step positioning groove 42 is provided on the side of the inverted T-shaped mounting block 41 away from the guide rail 24 to prevent The width of the T-shaped mounting block 41 is too thick, resulting in the need for too many supporting parts. The bottom of the mounting cross block 43 is placed at the bottom of the step positioning groove 42. The side wall of the mounting cross block 43 is connected to the groove wall of the step positioning groove 42 on the side close to the guide rail 24 by bolts. The clamping block 44 is set on the top of the inverted T-shaped mounting block 41 near the side of the flange mounting heat sink 37 by bolt connection. The side walls around the clamping block 44 are evenly spaced with distance adjustment holes 411. The clamping block 44 is surrounded by L-shaped claws 45, and the L-shaped claws 45 are pierced with equal intervals. The distance bolt, the bottom of the distance bolt is clamped in the distance adjustment hole 411, and the outer wall of the L-shaped claw 45 close to the flange mounting heat sink 37 is arc-shaped; a rubber buffer block 410 is arranged between the clamping block 44 and the L-shaped claw 45, and when adjusting the distance between the clamping block 44 and the L-shaped claw 45, it is only necessary to fine-tune the rubber buffer block 410 according to the difference in roundness between the end cones, which is more convenient for mastering the degree of fine-tuning, and a square column 46 is set in the middle of the clamping block 44 by welding, and the top of the square column 46 is straight to the second positioning hole 3 on one side of the guide rail 24 8, an end cone heat dissipation positioning block 47 is sleeved on the top of the square column 46, and the end cone heat dissipation positioning block 47 is coaxially arranged with the No. 2 positioning hole 38. A clamping cylinder 48 is connected with the left and right sides of the mounting cross block 43 by bolts, and a semi-trapezoidal pressing block 49 is provided on the top of the clamping cylinder 48 by bolts. The top of the semi-trapezoidal pressing block 49 is located in the direction of the clamping block 44 close to the No. 2 positioning hole 38, and an arc-shaped pressing surface is provided on the top of the semi-trapezoidal pressing block 49 close to the clamping block 44, which is more suitable for locking the end cone while protecting the outer contour of the end cone.

[0065] The bottom of the end cone side hole support module 5 is obliquely arranged between the flange end pusher assembly module 2 and the end cone inner and outer support module 4 through bolt connection, and one side of the top of the end cone side hole support module 5 extends toward the end cone inner and outer support module 4. The end cone side hole support module 5 includes: a positioning bracket 51, a T-shaped positioning block, a plug rod 55, and a No. 2 push rod clamp 57, wherein the positioning bracket 51 is obliquely arranged on the top of the bottom plate 1 through bolt connection and is located between the guide rail positioning groove 23 and the inverted T-shaped mounting block 41, and an inclined side wall is arranged on the top of the positioning bracket 51 away from the inverted T-shaped mounting block 41, and an orienting plate 52 is arranged on the top of the side wall through bolt connection, and a T-shaped positioning block is arranged on the side of the orienting plate 52 away from the inverted T-shaped mounting block 41 through bolt connection, and the T-shaped positioning block includes : T-transverse plate 53 and T-vertical plate 54, T-transverse plate 53 and T-vertical plate 54 are welded together, T-vertical plate 54 is arranged on the side of T-transverse plate 53 away from positioning bracket 51 and close to the middle part, the bottom of T-transverse plate 53 is connected with directional plate 52 by bolts, the top of T-transverse plate 53 is inclined to extend toward the direction of clamping cylinder 48, a directional hole is opened on the top of T-transverse plate 53, the plug rod 55 is passed through the directional hole, a plug head 58 is arranged on the side of plug rod 55 close to clamping cylinder 48, a No. 2 T-shaped groove 56 is arranged on the other side of plug rod 55, No. 2 push rod clamp 57 is arranged on the top of T-vertical plate 54 by bolt connection, the top push rod of No. 2 push rod clamp 57 is clamped in No. 2 T-shaped groove 56, it is arranged according to the characteristics of end cone, if it is an end cone with air holes, the air holes are prevented from deformation.

[0066] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A welding tool for a flange assembly between the tail end of an exhaust system and an engine, characterized in that: include: Bottom plate (1); A flange end push assembly module (2), wherein the flange feed assembly module (2) is arranged on one side of the top end of the base plate (1) through bolt connection; A flange limiting and fastening module (3), wherein the flange limiting and fastening module (3) is sleeved on the top of the guide rail (24) in the flange end pushing assembly module (2); An end cone inner and outer support module (4), wherein the end cone inner and outer support module (4) is arranged on a side of the base plate (1) away from the flange end push assembly module (2) through bolt connection; An end cone side hole support module (5), wherein the bottom of the end cone side hole support module (5) is obliquely arranged between the flange end pusher assembly module (2) and the end cone inner and outer support module (4) through bolt connection, and one side of the top of the end cone side hole support module (5) extends in the direction of the end cone inner and outer support module (4).

2. The welding tool for the flange assembly between the tail end of the exhaust system and the engine according to claim 1, characterized in that: The flange end pusher assembly module (2) comprises: A height adjustment slot (21), the height adjustment slot (21) being arranged on one side of the top end of the bottom plate (1), and a first push rod clamp (22) being arranged in the middle of the height adjustment slot (21) through bolt connection; A guide rail positioning groove (23), the guide rail positioning groove (23) is opened at the top of the bottom plate (1) in a direction away from the height adjustment groove (21), and the guide rail positioning groove (23) is located on the left and right sides of the top push rod of the No. 1 push rod clamp (22); A guide rail (24), wherein the guide rail (24) is arranged at the bottom of the guide rail positioning groove (23) by bolt connection, and a sliding block (25) is sleeved on the top of the guide rail (24); The slide (26) is arranged just above the guide rail (24), and the left and right sides of the bottom of the slide (26) are connected to the slider (25) by bolts, and a No. 1 T-shaped groove (27) is provided on one side of the slide (26), and the No. 1 T-shaped groove (27) is sleeved on the outer side of the top push rod of the No. 1 push rod clamp (22).

3. The welding tool for the flange assembly between the tail end of the exhaust system and the engine according to claim 2, characterized in that: The flange limiting and fastening module (3) comprises: A slide connecting plate (31), wherein the slide connecting plate (31) is connected by bolts and arranged on a side of the top of the slide (26) away from the first push rod clamp (22); An L-shaped mounting plate, the L-shaped mounting plate is connected and arranged on the top of the slide connecting plate (31) by bolt connection, the L-shaped mounting plate is respectively composed of a horizontal plate (32) and a vertical plate (33) by welding, the horizontal plate (32) is arranged on the top of the slide connecting plate, the vertical plate (33) is arranged on the side of the top of the horizontal plate (32) away from the No. 1 push rod clamp (22), a No. 1 positioning hole (34) is arranged in the middle of the top of the vertical plate (33), and a square groove (35) is arranged at the bottom of the vertical plate (33); A boss sleeve (36), wherein the boss sleeve (36) is arranged in the first positioning hole (34) by welding; A flange mounted heat sink (37), the flange mounted heat sink (37) being arranged on a side of the No. 1 positioning hole (34) away from the No. 1 push rod clamp (22), the flange mounted heat sink (37) being connected to the vertical plate (33) by bolts, a No. 2 positioning hole (38) being provided in the middle of the flange mounted heat sink (37), the No. 2 positioning hole (38) being coaxially arranged with the No. 1 positioning hole (34), and locking bolts (39) being passed through the left and right sides of the flange mounted heat sink (37); Flange-limited pressing cylinder modules are respectively arranged at the top and bottom of the vertical plate (33).

4. The welding tool for the flange assembly between the tail end of the exhaust system and the engine according to claim 3, characterized in that: The flange limiting clamping cylinder module comprises: a cylinder mounting plate (310), an L-shaped pressure head (312) and a cylinder (313); the cylinder mounting plate (310) is respectively arranged at the top and bottom of a side of the vertical plate (33) close to the No. 1 push rod clamp (22); the top of the cylinder mounting plate (310) arranged at the top of the vertical plate (33) extends vertically upward to a side away from the vertical plate (33); the bottom of the cylinder mounting plate (310) arranged at the bottom of the vertical plate (33) extends in the direction of the square groove (35); the top and bottom of the cylinder mounting plate (310) are arranged on one side close to the flange mounting heat sink (37); the circular arc swivel joint (311) in the cylinder mounting plate (310) arranged at the bottom of the vertical plate (33) extends forward into the square groove (35) and swings One side of the top of the clamping cylinder (48) is sleeved on the circular arc swivel joint (311) of the cylinder mounting plate (310) away from the outer side of the extension line of the center axis of the No. 2 positioning hole (38); the swing clamping cylinder (48) is connected to the circular arc swivel joint (311) through a rotating shaft; the top of the L-shaped pressure head (312) is located on the top or bottom of the flange mounting heat sink (37) away from the No. 1 push rod clamp (22); one side of the bottom of the L-shaped pressure head (312) is sleeved on the circular arc swivel joint (311) of the cylinder mounting plate (310) close to the outer side of the extension line of the center axis of the No. 2 positioning hole (38); the other side of the bottom of the L-shaped pressure head (312) is sleeved on the bottom of the swing clamping cylinder (48); the bottom of the L-shaped pressure head (312) is respectively connected to the circular arc swivel joint (311) and the swing clamping cylinder (48) through a rotating shaft.

5. The welding tool for the flange assembly between the tail end of the exhaust system and the engine according to claim 4, characterized in that: The end cone inner and outer support module (4) comprises: An inverted T-shaped mounting block (41), the inverted T-shaped mounting block (41) being arranged on the top of the base plate (1) by means of bolt connection and located on a side of the guide rail (24) away from the first push rod clamp (22); A step positioning groove (42), wherein the step positioning groove (42) is provided on a side of the inverted T-shaped mounting block (41) away from the guide rail (24); A mounting cross block (43), wherein the bottom of the mounting cross block (43) is placed at the bottom of the step positioning groove (42), and the side wall of the mounting cross block (43) is connected to the groove wall of the step positioning groove (42) on one side close to the guide rail (24) by bolts; A clamping block (44), the clamping block (44) is arranged on the top of the inverted T-shaped mounting block (41) by bolt connection on one side close to the flange mounting heat sink (37), the side walls around the clamping block (44) are provided with distance adjustment holes (411) at equal intervals, the clamping block (44) is provided with L-shaped claws (45) around, the L-shaped claws (45) are provided with distance bolts at equal intervals, the bottom of the distance bolts is clamped in the distance adjustment hole (411), and the outer wall of the L-shaped claw (45) close to the flange mounting heat sink (37) is in an arc shape; A square column (46), wherein the square column (46) is arranged in the middle of the clamping block (44) by welding, the top of the square column (46) extends straight toward the direction of the second positioning hole (38) toward one side of the guide rail (24), and the top of the square column (46) is sleeved with an end cone heat dissipation positioning block (47); A clamping cylinder (48), wherein the clamping cylinder (48) is arranged on the left and right sides of the mounting cross block (43) by bolt connection, and a semi-trapezoidal pressure block (49) is arranged on the top of the clamping cylinder (48) by bolt connection, and the top of the semi-trapezoidal pressure block (49) is located in the direction of the clamping block (44) close to the second positioning hole (38), and a circular arc-shaped pressure surface is arranged on one side of the top of the semi-trapezoidal pressure block (49) close to the clamping block (44).

6. The welding tool for the flange assembly between the tail end of the exhaust system and the engine according to claim 5, characterized in that: A rubber buffer block (410) is provided between the clamping block (44) and the L-shaped claw (45).

7. The welding tool for the flange assembly between the tail end of the exhaust system and the engine according to claim 6, characterized in that: The end cone side hole support module (5) comprises: A positioning bracket (51), the positioning bracket (51) is obliquely arranged at the top of the bottom plate (1) between the guide rail positioning groove (23) and the inverted T-shaped mounting block (41) through bolt connection, the top of the positioning bracket (51) is provided with an inclined side wall on the side away from the inverted T-shaped mounting block (41), the top of the side wall is provided with an orienting plate (52) through bolt connection, and the orienting plate (52) is provided with a T-shaped positioning block on the side away from the inverted T-shaped mounting block (41) through bolt connection; The T-shaped positioning block comprises: a T-transverse plate (53) and a T-vertical plate (54), wherein the T-transverse plate (53) and the T-vertical plate (54) are formed by welding, wherein the T-vertical plate (54) is arranged on the side of the T-transverse plate (53) away from the positioning bracket (51) and close to the middle part, wherein the bottom of the T-transverse plate (53) is connected to the directional plate (52) by bolts, and the top of the T-transverse plate (53) extends obliquely toward the direction of the pressing cylinder (48), and a directional hole is opened on the top of the T-transverse plate (53); A plug rod (55), the plug rod (55) is inserted into the directional hole, a plug head (58) is provided on one side of the plug rod (55) close to the pressing cylinder (48), and a second T-shaped groove (56) is provided on the other side of the plug rod (55); A No. 2 push rod clamp (57), wherein the No. 2 push rod clamp (57) is arranged on the top of the T vertical plate (54) through bolt connection, and the top push rod of the No. 2 push rod clamp (57) is clamped in the No. 2 T-shaped groove (56).

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