Auxiliary supporting mechanism of air outlet connecting pipe component

Abstract

The invention relates to the technical field of automobile part production and assembly, and discloses an auxiliary supporting mechanism of an air outlet connecting pipe component, which comprises a positioning supporting piece, a supporting piece pre-positioning driving mechanism and a positioning abutting linear driver. The pre-positioning linear driver indirectly drives the positioning supporting piece to be pre-positioned and abut against the back face, in the pressed direction, of the air outlet connecting pipe component through the buffering mechanism, the buffering mechanism plays a role in avoiding rigid extrusion deformation between the positioning supporting piece and the air outlet connecting pipe component, and the pre-positioning mode is reliable; the air outlet connecting pipe component is matched with the positioning abutting linear driver to further abut against the positioning supporting piece, auxiliary supporting of the air outlet connecting pipe component in the press fitting process is achieved, structural deformation of the air outlet connecting pipe component in the lateral press fitting process of the differential pressure air taking pipe is well avoided, and the assembling reliability of the EGR air outlet pipe assembly is improved.

Description

[0001] This application is a divisional application of the patent application No. "202211130847.2" with the application date of "2022.09.16" and the name of "Low-pressure EGR gas outlet pipe assembly press fitting machine". TECHNICAL FIELD

[0002] The application belongs to the technical field of automobile parts production and assembly, and specifically relates to an auxiliary supporting mechanism for a gas outlet connecting pipe component. BACKGROUND

[0003] EGR (Exhaust Gas Recirculation) is a technology that directs part of the exhaust gas after combustion into the intake side to make it inhale again, and the main purpose is to reduce nitrogen oxides in exhaust gas and improve fuel economy at partial load. The EGR system is divided into low-pressure EGR system and high-pressure EGR system, and the gas taking position and gas outlet position of the two are different. The low-pressure EGR system is usually horizontally arranged at the rear end of the engine or the exhaust side.

[0004] The existing low-pressure EGR gas outlet pipe assembly is mostly assembled with the gas outlet connecting pipe component and the differential pressure gas taking pipe by automatic equipment press fitting. During assembly, the gas outlet connecting pipe component needs to be fixed on a clamp, and the differential pressure gas taking pipe is laterally press fitted on the upper part of the gas outlet connecting pipe component by a driver in an interference fit manner. The gas outlet connecting pipe component fixed on the clamp is not well supported laterally on the other side, and is prone to structural micro-deformation due to unbalanced pressure on both sides during press fitting, which affects the quality of the assembled parts and reduces the assembly reliability.

[0005] Therefore, the prior art still needs to be improved and enhanced. SUMMARY

[0006] In view of the above shortcomings of the prior art, the purpose of the present application is to overcome the structural deformation of the existing gas outlet connecting pipe component during lateral press fitting of the differential pressure gas taking pipe, and to provide a low-pressure EGR gas outlet pipe assembly press fitting machine with improved assembly reliability.

[0007] In order to achieve the above purpose, the present application adopts the following technical solutions:

[0008] The low-pressure EGR exhaust pipe assembly press-fitting machine comprises a rack, a clamp mechanism for clamping an exhaust pipe component on the rack, a press-fitting mechanism on one side of the clamp mechanism, and an auxiliary support mechanism on the other side of the clamp mechanism opposite to the press-fitting mechanism, the press-fitting mechanism comprises a press-fitting upper loading seat for arranging a differential pressure gas extraction pipe and a press-fitting driver for driving the press-fitting upper loading seat to perform press-fitting assembly, and the auxiliary support mechanism comprises a positioning support, a support pre-positioning driving mechanism, and a positioning abutting linear driver, the support pre-positioning driving mechanism comprises a bracket, a buffer mechanism, and a pre-positioning linear driver, the positioning support is slidably connected to the bracket through a first sliding rail device, the buffer mechanism is connected to the rear side of the positioning support, the pre-positioning linear driver moves the positioning support to the side of the clamp mechanism relative to the buffer mechanism through pushing the buffer mechanism and abuts against the exhaust pipe component to realize pre-positioning of the positioning support, and the positioning abutting linear driver extends to abut against the positioning support to realize auxiliary positioning support of the exhaust pipe component during press-fitting of the differential pressure gas extraction pipe.

[0009] Further, the positioning support is connected to the first sliding rail device through a sliding bracket, the buffer mechanism is connected to the sliding bracket and located between the sliding bracket and the pre-positioning linear driver, and the driving rod of the positioning abutting linear driver is arranged on the same axis as the positioning support; in this way, the transverse extension length of the positioning support is effectively increased, and the positioning abutting linear driver is conveniently connected to the positioning support.

[0010] Further, the press-fitting mechanism further comprises an assembly fixing module for mounting the differential pressure gas extraction pipe, the differential pressure gas extraction pipe is detachably mounted in a plug-in interface at the outer end of the press-fitting upper loading seat with the assembly fixing module, and the press-fitting mechanism further comprises an assembly fixing module, the assembly fixing module comprises two mutually spliced pair of holders, and the opposite inner sides of the two pair of holders are respectively provided with fixed cavities corresponding to the outer profile of the differential pressure gas extraction pipe; the two pair of holders are detachably spliced with each other in a magnetic attraction manner; in this way, the differential pressure gas extraction pipe is mounted on the press-fitting upper loading seat by selecting a corresponding assembly fixing module, the assembly fixing module can clamp differential pressure gas extraction pipes of different shapes, such as curved and bent types, and the versatility of the press-fitting upper loading seat for press-fitting differential pressure gas extraction pipes of different specifications is improved.

[0011] Further, the pressing mechanism further comprises a sliding seat for mounting the pressing feeding seat, the sliding seat is slidably arranged on the rack through a second sliding rail device, the pressing driver is located at the rear side of the sliding seat, the sliding seat is provided with a clamping seat matched with the telescopic shaft of the pressing driver and an abutting portion located at the front side of the clamping seat, the clamping seat is provided with a clamping hole penetrating through, the middle part of the outer periphery of the telescopic shaft of the pressing driver is provided with a movable limiting portion inserted into the clamping hole, the length of the movable limiting portion is greater than the width of the clamping hole, so that the telescopic shaft of the pressing driver drives the pressing feeding seat to perform the pressing operation by abutting on the abutting portion of the sliding seat, and drives the pressing feeding seat to relatively reset by pulling the clamping seat of the sliding seat through the telescopic shaft; by such arrangement, the stress area of the telescopic shaft of the pressing driver with the sliding seat when pulling the pressing feeding seat to reset is effectively improved, the stress pressure of the telescopic shaft of the pressing driver is reduced, the resetting driving effect of the pressing feeding seat is better, and the use reliability of the pressing driver is improved.

[0012] Further, the positioning support and the pressing feeding seat are arranged in the same vertical plane, and the pressing direction of the pressing feeding seat is arranged in a horizontal direction and inclined upward; by such arrangement, the auxiliary supporting effect of the positioning support and the pressing direction of the pressing mechanism are ensured in the same vertical plane, and the pressing feeding seat is arranged in an inclined manner, so that the differential pressure gas taking pipe assembly fixing module is more stable when being arranged on the pressing feeding seat.

[0013] Further, the rack is provided with a first detector for detecting whether the clamp mechanism clamps the gas outlet connecting pipe member, a second detector for detecting whether the clamp mechanism clamps the gas outlet connecting pipe member in place, and a third detector for detecting whether the differential pressure gas taking pipe is pressed in place; by such arrangement, the working time of the pressing mechanism can be controlled by the control system according to the detected information.

[0014] Further, the pressing mechanism further comprises a fourth detector for detecting whether the pressing feeding seat loads the differential pressure gas taking pipe and a fifth detector for detecting whether the pressing feeding seat loads the assembly fixing module; by such arrangement, the working time of the pressing mechanism can be controlled by the control system according to the detected information.

[0015] Further, a marking machine for marking the clamp operation of the gas outlet connecting pipe member is further included; by such arrangement, the differential pressure gas taking pipe member after the pressing assembly is marked, so that the worker can identify the differential pressure gas taking pipe member after the pressing assembly.

[0016] Beneficial effects: Compared with the prior art, the low-pressure EGR exhaust pipe assembly press-fitting machine of the application is provided with an auxiliary supporting mechanism on the side opposite to the clamp mechanism. After the exhaust pipe connecting member is installed on the clamp mechanism, the pre-positioning linear driver indirectly drives the positioning support to be pre-positioned against the back of the exhaust pipe connecting member in the pressure direction through the buffer mechanism. The buffer mechanism plays a role of avoiding hard extrusion deformation between the positioning support and the exhaust pipe connecting member. The pre-positioning mode is reliable. The positioning abutting linear driver is further abutted against the positioning support, auxiliary support of the exhaust pipe connecting member during press-fitting is realized, structural deformation of the exhaust pipe connecting member during lateral press-fitting of the differential pressure gas taking pipe is avoided, and the assembly reliability of the EGR exhaust pipe assembly is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of a low-pressure EGR exhaust pipe assembly press-fitting machine Figure 1 .

[0018] Figure 2 is a schematic diagram of a clamp mechanism and a placement platform.

[0019] Figure 3 is a schematic diagram of an auxiliary supporting mechanism.

[0020] Figure 4 is a schematic diagram of a press-fitting mechanism.

[0021] Figure 5 is a schematic diagram of a low-pressure EGR exhaust pipe assembly press-fitting machine Figure 2 .

[0022] Figure 6 is a schematic diagram of an assembly fixing module and an exhaust pipe connecting member.

[0023] Main element symbol explanation: 1 - rack, 2 - clamp mechanism, 11 - exhaust pipe connecting member, 3 - auxiliary supporting mechanism, 4 - press-fitting mechanism, 41 - press-fitting upper loading seat, 42 - press-fitting driver, 31 - positioning support, 32 - support pre-positioning driving mechanism, 33 - positioning abutting linear driver, 321 - bracket, 322 - pre-positioning linear driver, 323 - buffer mechanism, 324 - sliding carriage, 325 - first sliding rail device, 3241 - guide rod, 3242 - buffer spring, 3243 - limiting part, 411 - plug interface, 43 - pair of clamping members, 431 - fixed cavity, 432 - magnetic attraction member, 44 - sliding seat, 45 - abutting part, 46 - clamping seat, 421 - telescopic shaft, 461 - bayonet, 422 - movable limiting part, 13 - wedge block seat, 12 - differential pressure gas taking pipe, 14 - placement platform, 15 - positioning lower die, 22 - clamping mechanism, 16 - marking machine, 51 - first detector, 52 - second detector, 53 - third detector, 54 - fourth detector, 55 - fifth detector, 111 - mounting hole. DETAILED DESCRIPTION

[0024] The low-pressure EGR gas outlet pipe assembly press-fitting machine provided by the present application is further described in detail below with reference to the drawings and examples in order to make the purpose, technical solutions and effects of the present application more clear and explicit. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the protection scope of the present application.

[0025] Referring to Figures 1 to 6 The low-pressure EGR gas outlet pipe assembly press-fitting machine provided by the present application comprises a control module, a rack 1, a clamp mechanism 2 provided on the rack 1 for clamping an outlet pipe component 11, a press-fitting mechanism 4 located on one side of the clamp mechanism 2 and an auxiliary support mechanism 3 located on the other side of the clamp mechanism 2 opposite to the press-fitting mechanism 4. The press-fitting mechanism 4 comprises a press-fitting upper loading seat 41 for placing a differential pressure gas taking pipe 12 and a press-fitting driver 42 for driving the press-fitting upper loading seat 41 to perform press-fitting assembly. The auxiliary support mechanism 3 comprises a positioning support 31, a support pre-positioning driving mechanism 32 and a positioning abutting linear driver 33. The support pre-positioning driving mechanism 32 comprises a bracket 321, a buffer mechanism 323 and a pre-positioning linear driver 322. The positioning support 31 is slidably connected to the bracket 321 through a first sliding rail device 325. The buffer mechanism 323 is connected to the rear side of the positioning support 31. The pre-positioning linear driver 322 moves the positioning support 31 to the side of the clamp mechanism 2 relative to the buffer mechanism 323 and abuts against the outlet pipe component 11 to realize pre-positioning of the positioning support 31. In cooperation with the positioning abutting linear driver 33 extending to abut against the positioning support 31, the auxiliary positioning support of the outlet pipe component 11 during press-fitting of the differential pressure gas taking pipe 12 is realized.

[0026] When the pre-positioning linear driver 322 moves the positioning support 31 to the side of the clamp mechanism 2 by pushing the buffer mechanism 323, when the positioning support 31 is driven to abut against the outlet pipe component 11, even if the pre-positioning linear driver 322 continues to maintain driving work, the compression buffer effect of the buffer mechanism 323 can offset the driving extension stroke of the pre-positioning linear driver 322, so that the positioning support 31 is kept in the initial position of abutment, avoiding hard extrusion between the positioning support 31 and the outlet pipe component 11. The control mode of the extension stroke of the pre-positioning linear driver 322 can be realized by the existing setting stroke sensor or the mode of controlling the extension working time.

[0027] After the positioning abutting linear driver 33 extends to abut against the positioning support 31, it stops extending adaptively, and provides a suitable pressing force against the back of the exhaust pipe component 11 in the pressure direction, and indirectly plays an auxiliary supporting function on the exhaust pipe component 11 by stopping the extension of the driving rod of the positioning abutting linear driver 33 to form a self-locking state. The control mode of the extension stroke of the positioning abutting linear driver 33 can be realized by the existing distance sensor mode between the setting detection and the positioning support 31.

[0028] Compared with the prior art, the low-pressure EGR exhaust pipe assembly press fitting machine of the application is provided with an auxiliary support mechanism 3 on the side opposite to the clamp mechanism 2. After the exhaust pipe component 11 is installed on the clamp mechanism 2, the pre-positioning linear driver 322 indirectly drives the positioning support 31 to pre-position against the back of the exhaust pipe component 11 in the pressure direction through the buffer mechanism 323. The buffer mechanism 323 plays a role of avoiding hard extrusion deformation between the positioning support 31 and the exhaust pipe component 11, and the pre-positioning mode is reliable. The positioning abutting linear driver 33 is further abutted against the positioning support 31 to realize the auxiliary support of the exhaust pipe component 11 during the press fitting, and better avoid structural deformation of the exhaust pipe component 11 during the lateral press fitting of the differential pressure gas taking pipe 12, thereby improving the assembly reliability of the EGR exhaust pipe assembly.

[0029] Referring to Figures 1 to 5 In an embodiment, the pre-positioning linear driver 322 and the positioning abutting linear driver 33 are push rod structures, such as electric push rods or pneumatic push rods, etc. The positioning support 31 is connected to the first slide rail device 325 through a slide carriage 324. The positioning support 31 extends to the front side of the abutting linear driver through the slide carriage 324. The buffer mechanism is connected to the slide carriage 324 and located between the slide carriage 324 and the pre-positioning linear driver 322. The pre-positioning linear driver 322 and the buffer mechanism 323 are in a non-connected relationship. The driving rod of the pre-positioning linear driver 322 directly contacts the buffer mechanism 323 when it extends, and is disconnected from the buffer mechanism 323 when it resets. The driving rod of the positioning abutting linear driver 33 is arranged on the same axis as the positioning support 31. By such arrangement, the transverse extension length of the positioning support 31 is effectively improved, and the positioning abutting linear driver 33 is facilitated to be connected to the positioning support 31.

[0030] Referring to Figure 1 and Figure 3In an embodiment, the buffering mechanism 323 comprises a guide rod 3241 movably sleeved on the sliding frame 324, and a buffering spring 3242 sleeved on the guide rod 3241 and abutting against the sliding frame 324 and the limiting portion 3243 at both ends.

[0031] Referring to Figure 1 , Figure 4 and Figure 6 In an embodiment, the pressing mechanism 4 further comprises a fitting fixing module for mounting the differential pressure gas taking pipe 12, the differential pressure gas taking pipe 12 is detachably mounted in the plug interface 411 at the outer end of the pressing feeding seat 41 with the fitting fixing module, and the pressing mechanism 4 further comprises a fitting fixing module, the fitting fixing module comprises two mutually spliced pair of holders 43, and the opposite inner sides of the two pair of holders 43 are respectively provided with fixed cavities 431 corresponding to the outer side profile of the differential pressure gas taking pipe 12; the two pair of holders 43 are detachably spliced with each other in a magnetic attraction manner, for example, the two pair of holders 43 are both made of magnetic material (such as iron metal), and a magnetic attraction piece 432 is arranged between the two pair of holders 43, so that the two pair of holders 43 are detachably spliced with each other in a magnetic attraction manner; in this way, the differential pressure gas taking pipe 12 is mounted on the pressing feeding seat 41 by selecting a corresponding fitting fixing module, the fitting fixing module can clamp differential pressure gas taking pipes 12 of different shapes, such as curved type and bent type, so as to improve the universality of the pressing feeding seat 41 in pressing and feeding differential pressure gas taking pipes 12 of different specifications.

[0032] Referring to Figure 1 and Figure 4In one embodiment, the press-fitting mechanism 4 further includes a slide 44 for installing a press-fitting loading seat 41, the slide 44 being slidably arranged on the frame 1 through a second slide rail device, the press-fitting driver 42 being located at the rear side of the slide 44, the slide 44 being provided with a card seat 46 cooperating with the telescopic shaft 421 of the press-fitting driver 42 and an abutment portion 45 located at the front side of the card seat 46, the card seat 46 being provided with a through bayonet 461, the central periphery of the telescopic shaft 421 of the press-fitting driver 42 being provided with a movable limiting portion 422 placed in the bayonet 461, the movable limiting portion 422 being located on the telescopic shaft 421 and having an outer diameter smaller than that of the telescopic shaft In some sections of the outer diameter of the reduced shaft 421, the length of the movable limiting portion 422 is greater than the width of the bayonet 461, so that the telescopic shaft 421 of the press-fitting driver 42 drives the press-fitting loading seat 41 to perform a press-fitting operation by abutting against the abutment 45 of the slide 44, and pulls the clamping seat 46 of the slide 44 through the telescopic shaft 421 to drive the press-fitting loading seat 41 to perform relative reset; through such a setting, the force area of ​​the telescopic shaft 421 and the slide 44 when pulling the press-fitting loading seat 41 to reset is effectively increased, the force pressure of the telescopic shaft of the press-fitting driver 42 is reduced, the reset driving effect of the press-fitting loading seat 41 is better, and the use reliability of the press-fitting driver 42 is improved.

[0033] See also Figure 1 and Figure 5 In one embodiment, the positioning support 31 and the press-fitting loading seat 41 are arranged in the same vertical plane, and the frame 1 is provided with a wedge block seat 13 with an inclined surface, and the press-fitting loading seat 41 is installed on the inclined surface of the wedge block seat 13 through a slide 44, so that the pressing direction of the press-fitting loading seat 41 is arranged upwardly inclined in the horizontal direction; through such an arrangement, the auxiliary supporting function of the positioning support 31 and the pressing direction of the press-fitting mechanism 4 are ensured to be in the same vertical plane, and the press-fitting loading seat 41 is inclined, which is convenient for loading the pressure difference air intake pipe 12 and having the assembly parts fixing module more firmly placed on the press-fitting loading seat 41.

[0034] In one embodiment, the middle of the frame 1 is provided with an assembly and placement platform 14, and the upper side of the assembly and placement platform 14 is provided with a Figure 2 The bottom of the air outlet pipe component 11 is matched with the positioning lower mold 15, and the clamping mechanism 2 includes a plurality of clamping mechanisms 22 surrounding the outside of the positioning lower mold 15. The plurality of clamping mechanisms 22 fix the air outlet pipe component 11 on the assembly placement platform 14 by pressing the lower part of the air outlet pipe component 11.

[0035] See also Figure 1 and Figure 5In one embodiment, it also includes a marking machine 16 for marking the completed clamping operation of the air outlet pipe component 11; through such a setting, the completed press-assembled air outlet pipe component 11 is marked, which makes it convenient for workers to identify the air outlet pipe component 11 that has completed the press-assembly process.

[0036] See also Figures 1 to 6 In one embodiment, the frame 1 is provided with a first detector 51 for detecting whether the clamping mechanism 2 is clamped with the air outlet pipe component 11, a second detector 52 for detecting whether the clamping mechanism 2 is in place to clamp the air outlet pipe component 11, and a third detector 53 for detecting whether the pressure differential air intake pipe 12 is press-fitted into place. The specific method of detecting whether the pressure differential air intake pipe 12 is press-fitted into place is to detect whether the clamping mechanism 22 is in a tightened state. If it is in a loose state, the pressure differential air intake pipe 12 is not press-fitted into place; the pressing mechanism 4 also includes a fourth detector 54 for detecting whether the press-fitting loading seat 41 is loaded with the pressure differential air intake pipe 12 and a fifth detector 55 for detecting whether the press-fitting loading seat 41 is loaded with an assembly fixing module; when the low-pressure EGR outlet pipe assembly press-fitting machine is performing press-fitting work, when the first detector 51 detects that the clamping mechanism 22 is in a tightened state, the pressure differential air intake pipe 12 is not press-fitted into place. When the clamp mechanism 2 is clamped with the air outlet pipe component 11, the second detector 52 detects that the clamp mechanism 2 has clamped the air outlet pipe component 11 in place, the fifth detector 55 detects that the press-fitting loading seat 41 is loaded with the assembly part fixing module, and the fourth detector 54 detects that the assembly part fixing module is loaded with the pressure differential air intake pipe 12, the control module can start the press-fitting driver 42 to drive the press-fitting loading seat 41 to perform press-fitting work, so that the pressure differential air intake pipe 12 is pressed into the installation hole 111 of the air outlet pipe component 11. When the third detector 53 detects that the pressure differential air intake pipe 12 is assembled in place on the air outlet pipe component 11, the control module can start the marking machine 16 to mark the completed press-fitted air outlet pipe component 11. By setting up in this way, multiple detectors are set up, which makes it convenient for the control system to control the working timing of the press-fitting mechanism 4 according to the detected information.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In the description of the application, it should be noted that unless otherwise expressly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrally connected; can be mechanically connected, can also be electrically connected or can communicate with each other; can be directly connected, or indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0039] It can be understood that for those skilled in the art, equivalent replacements or changes can be made according to the technical solutions and the inventive concept of the present application, and all such changes or replacements shall fall within the protection scope of the present application.

Claims

1. An auxiliary support mechanism for an air outlet pipe component, characterized in that: It includes a positioning support, a support pre-positioning drive mechanism and a positioning abutment linear drive. The support pre-positioning drive mechanism includes a bracket, a buffer mechanism and a pre-positioning linear drive. The positioning support can be slidably connected to the bracket through a first slide rail device. The buffer mechanism is connected to the rear side of the positioning support. The pre-positioning linear drive pushes the buffer mechanism to make the positioning support move relative to the side of the clamp mechanism and abut against the air outlet pipe component to achieve the pre-positioning of the positioning support, and cooperates with the positioning abutment linear drive to extend and abut on the positioning support to achieve auxiliary positioning support of the air outlet pipe component when pressing the pressure difference air extraction pipe.

2. The auxiliary support mechanism for the gas outlet pipe component according to claim 1, characterized in that: The positioning support is connected to the first slide rail device through a slide, and the buffer mechanism is connected to the slide and is located between the slide and the pre-positioning linear drive; the pre-positioning linear drive and the buffer mechanism are in a non-connected relationship, and the driving rod of the pre-positioning linear drive is in direct contact with the buffer mechanism when extended, and is disconnected from the buffer mechanism when reset.

3. The auxiliary support mechanism of the gas outlet pipe component according to claim 1, characterized in that: The buffer mechanism includes a guide rod movably sleeved on the slide and a buffer spring. The outer end of the guide rod is provided with a limit portion. The buffer spring is sleeved on the guide rod, and its two ends respectively abut against the limit portion and the slide.

4. The auxiliary support mechanism for the gas outlet pipe component according to claim 1, characterized in that: The driving rod of the positioning abutment linear actuator and the positioning support are arranged on the same axis.

5. The auxiliary support mechanism for the gas outlet pipe component according to claim 1, characterized in that: The positioning support member includes a back support long block portion and a T-shaped connecting portion connected in sequence from front to back, the T-shaped connecting portion is installed on the slide, the back support long block portion and the T-shaped connecting portion form an avoidance step with a height difference, and the front end of the back support long block portion is provided with a contoured notch.

6. The auxiliary support mechanism for the gas outlet pipe component according to claim 1, characterized in that: The pre-positioning linear drive and the positioning abutting linear drive are both electric push rods or pneumatic push rods.

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