Low-pressure EGR exhaust pipe assembly press

Abstract

The present invention relates to the technical field of automotive component production and assembly, and discloses a low-pressure EGR outlet pipe assembly press. An auxiliary support mechanism is provided on the other side opposite to the fixture mechanism. After the outlet pipe connection member is installed on the fixture mechanism, the pre-positioning linear driver indirectly drives the positioning support member through a buffer mechanism to pre-position and abut against the back surface of the outlet pipe connection member in the compression direction. The buffer mechanism plays a role in preventing hard extrusion deformation between the positioning support member and the outlet pipe connection member. The pre-positioning method is reliable. The positioning abutting linear driver further abuts against the positioning support member to realize the auxiliary support of the outlet pipe connection member during press fitting, preferably avoiding structural deformation of the outlet pipe connection member during the process of laterally press fitting the differential pressure intake pipe, and improving the assembly reliability of the EGR outlet pipe assembly.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive component production and assembly, and particularly relates to a press for a low-pressure EGR outlet pipe assembly. Background Art

[0002] EGR (Exhaust Gas Recirculation) is a technology in which a part of the exhaust gas after combustion in an automotive engine is introduced into the intake side to make it intake again. The main purpose is to reduce nitrogen oxides in the exhaust gas and improve fuel economy at part load. The EGR system is divided into a low-pressure EGR system and a high-pressure EGR system. The gas intake position and the gas outlet position of the two are different. The low-pressure EGR system is usually horizontally arranged at the rear end or the exhaust side of the engine.

[0003] For the existing low-pressure EGR outlet pipe assembly, the assembly method of the outlet connection pipe component and the differential pressure intake pipe mostly adopts equipment automatic press-fitting. During assembly, the outlet connection pipe component needs to be fixed on a fixture, and the differential pressure intake pipe is laterally press-fitted onto the upper part of the outlet connection pipe component in an interference fit manner through a driver; since the outlet connection pipe component fixed on the fixture is not well laterally supported on the opposite side, it is prone to unbalanced lateral pressure during the press-fitting process, resulting in microstructural deformation, affecting the quality of the assembled parts, and having low assembly reliability.

[0004] It can be seen that the existing technology still needs to be improved. Summary of the Invention

[0005] In view of the deficiencies of the above-mentioned existing technology, the purpose of the present invention is to overcome the structural deformation that easily occurs in the existing outlet connection pipe component during the lateral press-fitting of the differential pressure intake pipe, and to provide a press for a low-pressure EGR outlet pipe assembly with improved assembly reliability.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions:

[0007] Low-pressure EGR outlet pipe assembly press-fitting machine, including a frame, and a fixture mechanism provided on the frame for clamping the outlet pipe component, a press-fitting mechanism on one side of the fixture mechanism, and an auxiliary support mechanism on the opposite side of the fixture mechanism. The press-fitting mechanism includes a press-fitting loading seat for placing the differential pressure intake pipe and a press-fitting driver for driving the press-fitting loading seat to perform press-fitting assembly. The auxiliary support mechanism includes a positioning support member, a support member pre-positioning drive mechanism, and a positioning abutting linear driver. The support member pre-positioning drive mechanism includes a bracket, a buffer mechanism, and a pre-positioning linear driver. The positioning support member is slidably connected to the bracket through a first slide rail device. The buffer mechanism is connected to the rear side of the positioning support member. The pre-positioning linear driver makes the positioning support member move relatively toward the fixture mechanism side by pushing the buffer mechanism and abut against the outlet pipe component to realize the pre-positioning of the positioning support member, and cooperate with the positioning abutting linear driver to extend and abut against the positioning support member to realize the auxiliary positioning support of the outlet pipe component during the press-fitting of the differential pressure intake pipe.

[0008] Further, the positioning support member is connected to the first slide rail device through a carriage. The buffer mechanism is connected to the carriage and is located between the carriage and the pre-positioning linear driver. The driving rod of the positioning abutting linear driver and the positioning support member are arranged on the same axis. By such setting, the lateral extension length of the positioning support member is effectively increased, which is convenient for the connection between the positioning abutting linear driver and the positioning support member.

[0009] Further, the press-fitting mechanism further includes an assembly fixing module for installing the differential pressure intake pipe. The differential pressure intake pipe is detachably installed in the insertion port at the outer end of the press-fitting loading seat along with the assembly fixing module. The press-fitting mechanism further includes an assembly fixing module. The assembly fixing module includes two spliced clamping members. Fixed cavities corresponding to the outer contour of the differential pressure intake pipe are respectively provided on the relative inner sides of the two clamping members. The two clamping members are detachably spliced in a magnetic attraction manner. By such setting, the differential pressure intake pipe is installed on the press-fitting loading seat by selecting the corresponding assembly fixing module. The assembly fixing module can clamp differential pressure intake pipes of different shapes, such as bent type and bent and folded type, which is convenient for improving the versatility of the press-fitting loading seat for press-fitting differential pressure intake pipes of different specifications.

[0010] The cam is configured to move the movable member to a position adjacent to the rear frame, and the movable member is configured to move the movable member to a position adjacent to the rear frame, and the movable member is configured to move the movable member to a position adjacent to the rear frame.

[0011] Furthermore, the positioning support and the press-fitting loading seat are arranged in the same vertical plane, and the pressing direction of the press-fitting loading seat is arranged to be inclined upward along the horizontal direction; through such an arrangement, the auxiliary supporting function of the positioning support and the pressing direction of the press-fitting mechanism are ensured to be in the same vertical plane, and the press-fitting loading seat is inclined, which is convenient for loading the pressure difference air intake pipe and the assembly fixing module is more firmly placed on the press-fitting loading seat.

[0012] Furthermore, the frame is provided with a first detector for detecting whether the clamp mechanism is clamped with the air outlet pipe component, a second detector for detecting whether the clamp mechanism is in place to clamp the air outlet pipe component, and a third detector for detecting whether the pressure difference air pipe is pressed into place; through such an arrangement, it is convenient for the control system to control the working timing of the pressing mechanism according to the detected information.

[0013] Furthermore, the press-fitting mechanism also includes a fourth detector for detecting whether the press-fitting loading seat is loaded with a pressure differential air extraction pipe and a fifth detector for detecting whether the press-fitting loading seat is loaded with an assembly part fixing module; through such an arrangement, it is convenient for the control system to control the working timing of the press-fitting mechanism according to the detected information.

[0014] Furthermore, it also includes a marking machine for marking the completed clamping operation of the air outlet pipe component; through such an arrangement, the air outlet pipe component that has completed the press-fitting assembly is marked, which makes it convenient for workers to identify the air outlet pipe component that has completed the press-fitting process.

[0015] Beneficial effects: Compared with the prior art, in the low-pressure EGR outlet pipe assembly press of the present invention, an auxiliary support mechanism is provided on the other side opposite to the fixture mechanism. After the air outlet connection pipe member is installed on the fixture mechanism, the pre-positioning linear driver indirectly drives the positioning support member through the buffer mechanism to pre-position and abut against the back of the air outlet connection pipe member in the compression direction. The buffer mechanism plays a role in preventing hard extrusion deformation between the positioning support member and the air outlet connection pipe member. The pre-positioning method is reliable. The positioning abutting linear driver further abuts against the positioning support member, realizing the auxiliary support during the press-fitting of the air outlet connection pipe member, preferably avoiding structural deformation of the air outlet connection pipe member during the lateral press-fitting of the differential pressure intake pipe, and improving the assembly reliability of the EGR outlet pipe assembly. Description of the Drawings

[0016] Figure 1 Schematic diagram of the low-pressure EGR outlet pipe assembly press Figure 1 。

[0017] Figure 2 Schematic diagram of the fixture mechanism and the placement platform.

[0018] Figure 3 Schematic diagram of the auxiliary support mechanism.

[0019] Figure 4 Schematic diagram of the press-fitting mechanism.

[0020] Figure 5 Schematic diagram of the low-pressure EGR outlet pipe assembly press Figure 2 。

[0021] Figure 6 Schematic diagram of the fitting fixing module and the air outlet connection pipe member.

[0022] Description of the main component symbols: 1 - frame, 2 - fixture mechanism, 11 - air outlet connection pipe member, 3 - auxiliary support mechanism, 4 - press-fitting mechanism, 41 - press-fitting feeding seat, 42 - press-fitting driver, 31 - positioning support member, 32 - support member pre-positioning drive mechanism, 33 - positioning abutting linear driver, 321 - bracket, 322 - pre-positioning linear driver, 323 - buffer mechanism, 324 - carriage, 325 - first slide rail device, 3241 - guide rod, 3242 - buffer spring, 3243 - limiting part, 411 - insertion interface, 43 - clamping member, 431 - fixed cavity, 432 - magnetic attraction member, 44 - slide seat, 45 - abutting part, 46 - clamping seat, 421 - telescopic shaft, 461 - bayonet, 422 - movable limiting part, 13 - wedge block seat, 12 - differential pressure intake 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 position. Detailed implementation manners

[0023] For the low-pressure EGR exhaust pipe assembly press provided by the present invention, in order to make the purpose, technical solution and effects of the present invention clearer and more definite, the following further describes the present invention in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific examples described herein are only used to explain the present invention and are not used to limit the protection scope of the present invention.

[0024] See Figures 1 to 6 , the low-pressure EGR exhaust pipe assembly press of the present invention includes a control module, a frame 1, and a fixture mechanism 2 provided on the frame 1 for clamping the air outlet connection component 11, a press-fitting mechanism 4 on one side of the fixture mechanism 2, and an auxiliary support mechanism 3 on the opposite side of the fixture mechanism 2. The press-fitting mechanism 4 includes a press-fitting loading seat 41 for placing the differential pressure intake pipe 12 and a press-fitting driver 42 for driving the press-fitting loading seat 41 to perform press-fitting assembly. The auxiliary support mechanism 3 includes 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 includes 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 slide rail device 325. The buffer mechanism 323 is connected to the rear side of the positioning support 31. The pre-positioning linear driver 322 makes the positioning support 31 move relatively toward the fixture mechanism 2 by pushing the buffer mechanism 323 and abut against the air outlet connection component 11 to realize the pre-positioning of the positioning support 31, and cooperates with the positioning abutting linear driver 33 to extend and abut against the positioning support 31 to realize the auxiliary positioning support of the air outlet connection component 11 during the press-fitting of the differential pressure intake pipe 12.

[0025] When the pre-positioning linear driver 322 makes the positioning support 31 move toward the fixture mechanism 2 by pushing the buffer mechanism 323, when the positioning support 31 is driven to abut against the air outlet connection component 11, even if the pre-positioning linear driver 322 continues to maintain the driving operation, due to the compression buffering effect of the buffer mechanism 323, the stroke of the driving extension of the pre-positioning linear driver 322 can be offset, so that the positioning support 31 remains at the initial position of abutment, avoiding hard extrusion with the air outlet connection component 11. The control method of the extension stroke driven by the pre-positioning linear driver 322 can be realized by the existing method of setting a stroke sensor or controlling the extension working time.

[0026] After the positioning and abutting linear actuator 33 extends and abuts the positioning support 31, it stops extending adaptively, provides a suitable pressing force to abut the back side of the air outlet pipe member 11 in the pressure direction, and indirectly plays an auxiliary supporting function for the air outlet pipe member 11 by utilizing the self-locking state formed by the driving rod of the positioning and abutting linear actuator 33 stopping extending. The control method of the extension stroke driven by the pre-positioning and abutting linear actuator 33 can be realized by the existing method of setting a distance sensor between the detection and the positioning support 31.

[0027] Compared with the prior art, the low-pressure EGR outlet pipe assembly press machine of the present invention is provided with an auxiliary support mechanism 3 on the other side opposite to the clamp mechanism 2. After the outlet 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 and abut against the back side of the outlet pipe component 11 in the pressure direction through the buffer mechanism 323. The buffer mechanism 323 plays a role in avoiding hard extrusion deformation between the positioning support 31 and the outlet pipe component 11. The pre-positioning method is reliable, and the positioning and abutting linear driver 33 is further abutted against the positioning support 31, so as to realize auxiliary support of the outlet pipe component 11 during press-fitting, and better avoid structural deformation of the outlet pipe component 11 during the lateral press-fitting of the pressure difference air intake pipe 12, thereby improving the assembly reliability of the EGR outlet pipe assembly.

[0028] See also Figures 1 to 5 In one embodiment, the pre-positioning linear drive 322 and the positioning abutment linear drive 33 are push rod structures, such as electric push rods or pneumatic push rods, and the positioning support 31 is connected to the first slide rail device 325 through a slide 324. The positioning support 31 extends to the front side of the abutment linear drive by means of the width of the slide 324. The buffer mechanism is connected to the slide 324 and is located between the slide 324 and the pre-positioning linear drive 322. The pre-positioning linear drive 322 and the buffer mechanism 323 are in a non-connected relationship. The driving rod of the pre-positioning linear drive 322 directly contacts the buffer mechanism 323 when it is extended, and is disconnected from the buffer mechanism 323 when it is reset. The driving rod of the positioning abutment linear drive 33 is arranged on the same axis as the positioning support 31; through such an arrangement, the lateral extension length of the positioning support 31 is effectively increased, which facilitates the connection between the positioning abutment linear drive 33 and the positioning support 31.

[0029] See also Figure 1 and Figure 3, in one embodiment, the buffer mechanism 323 includes a guide rod 3241 movably sleeved on the carriage 324 and a buffer spring 3242. A limiting portion 3243 is provided at the outer end of the guide rod 3241. The buffer spring 3242 is sleeved on the guide rod 3241, and its two ends respectively abut against the limiting portion 3243 and the carriage 324.

[0030] See Figure 1 , Figure 4 and Figure 6 , in one embodiment, the press-fitting mechanism 4 further includes a fitting fixing module for mounting the differential pressure intake pipe 12. The differential pressure intake pipe 12 is detachably mounted in the insertion port 411 at the outer end of the press-fitting loading seat 41 along with the fitting fixing module. The press-fitting mechanism 4 further includes a fitting fixing module, which includes two opposing members 43 spliced together. Fixed cavities 431 corresponding to the outer contour of the differential pressure intake pipe 12 are respectively provided on the relative inner sides of the two opposing members 43; the two opposing members 43 are detachably spliced together in a magnetic attraction manner. For example, both of the two opposing members 43 are made of magnetic materials (such as iron metal), and a magnetic attraction member 432 is provided between the two opposing members 43, so as to realize the detachable splicing of the two opposing members 43 in a magnetic attraction manner; by such a setting, the differential pressure intake pipe 12 is installed on the press-fitting loading seat 41 by selecting a corresponding fitting fixing module. The fitting fixing module can clamp differential pressure intake pipes 12 of different shapes, such as curved and bent types, which is convenient for improving the versatility of the press-fitting loading seat 41 in press-fitting differential pressure intake pipes 12 of different specifications.

[0031] See Figure 1 and Figure 4In one embodiment, the press-fitting mechanism 4 further comprises 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 clamping seat 46 cooperating with a telescopic shaft 421 of the press-fitting driver 42 and an abutting portion 45 located at the front side of the clamping seat 46, the clamping seat 46 being provided with a through-going bayonet 461, the central outer periphery of the telescopic shaft 421 of the press-fitting driver 42 being provided with an active limiting portion 422 placed in the bayonet 461, the active 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 contracted shaft 421, the length of the movable limiting portion 422 is greater than the width of the retaining hole 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 abutting portion 45 of the slide 44, and drives the press-fitting loading seat 41 to perform a relative reset by pulling the retaining seat 46 of the slide 44 through the telescopic shaft 421; through such an arrangement, the force-bearing 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 reliability of the press-fitting driver 42 is improved.

[0032] 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, 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 seat 44, so that the press-fitting direction of the press-fitting loading seat 41 is arranged to be inclined upward in the horizontal direction; through such an arrangement, the auxiliary supporting function of the positioning support 31 is ensured to be in the same vertical plane as the press-fitting direction of the press-fitting mechanism 4, 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 to be more firmly placed on the press-fitting loading seat 41.

[0033] 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 a positioning lower mold 15, and the clamping mechanism 2 includes a plurality of clamping mechanisms 22 surrounding the outer side 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.

[0034] See also Figure 1 and Figure 5, in one embodiment, it further includes a marking machine 16 for marking the clamping operation of the air outlet connecting pipe member 11; by setting like this, marking the air outlet connecting pipe member 11 after the press-fitting assembly is completed, which is convenient for the operator to identify the air outlet connecting pipe member 11 that has completed the press-fitting process.

[0035] See Figures 1 to 6 , in one embodiment, the frame 1 is provided with a first detector 51 for detecting whether the fixture mechanism 2 clamps the air outlet connecting pipe member 11, a second detector 52 for detecting whether the fixture mechanism 2 clamps the air outlet connecting pipe member 11 in place, and a third detector 53 for detecting whether the differential pressure intake pipe 12 is press-fitted in place. The specific way to detect whether the differential pressure intake pipe 12 is press-fitted in place is to detect that the clamping mechanism 22 is in a tightened state. If it is in a loosened state, it means that the differential pressure intake pipe 12 is not press-fitted in place; the press-fitting mechanism 4 further includes a fourth detector 54 for detecting whether the press-fitting loading seat 41 loads the differential pressure intake pipe 12 and a fifth detector 55 for detecting whether the press-fitting loading seat 41 loads the fitting 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 fixture mechanism 2 clamps the air outlet connecting pipe member 11, the second detector 52 detects that the fixture mechanism 2 clamps the air outlet connecting pipe member 11 in place, the fifth detector 55 detects that the press-fitting loading seat 41 loads the fitting fixing module, and the fourth detector 54 detects that the fitting fixing module loads the differential pressure 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 differential pressure intake pipe 12 is press-fitted into the mounting hole 111 of the air outlet connecting pipe member 11. When the third detector 53 detects that the differential pressure intake pipe 12 is assembled in place on the air outlet connecting pipe member 11, the control module can start the marking machine 16 to mark the air outlet connecting pipe member 11 that has completed the press-fitting assembly. By setting like this, multiple detectors are set, which is convenient for the control system to control the working timing of the press-fitting mechanism 4 according to the detected information.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 cannot be understood as a limitation to the present invention.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection, an electrical connection or a connection capable of mutual communication; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the connection inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0038] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and inventive concepts of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. Low-pressure EGR exhaust pipe assembly press-fitting machine, characterized in that The cam is configured to move the positioning support relative to one side of the clamping mechanism and abut against the air outlet pipe component to achieve the pre-positioning of the positioning support, and the cam cooperates with the positioning and abutting linear drive to extend the positioning support to abut against the positioning support to achieve the auxiliary positioning support of the air outlet pipe component when the pressure differential air intake pipe is pressed.

2. The low-pressure EGR outlet pipe assembly press-fitting machine according to claim 1, wherein, The positioning support is connected to the first slide rail device through a slide, the buffer mechanism is connected to the slide and is located between the slide and the pre-positioning linear drive, and the driving rod of the positioning abutting linear drive and the positioning support are arranged on the same axis.

3. The low-pressure EGR outlet pipe assembly press-fitting machine according to claim 1, wherein The press-fitting mechanism also includes an assembly fixing module for installing a pressure differential air intake pipe, and the pressure differential air intake pipe is detachably installed in the plug-in interface at the outer end of the press-fitting loading seat along with the assembly fixing module.

4. The low-pressure EGR outlet pipe assembly press-fitting machine according to claim 3, characterized in that, The press-fitting mechanism also includes an assembly part fixing module, which includes two mutually spliced ​​embrace parts, and the relative inner sides of the two embrace parts are respectively provided with fixing cavities corresponding to the outer contour of the pressure difference air intake pipe.

5. The low-pressure EGR outlet pipe assembly press-fitting machine according to claim 4, characterized in that, The two pairs of holding pieces can be detachably connected to each other by magnetic attraction.

6. The low-pressure EGR outlet pipe assembly press-fitting machine according to claim 1, wherein, The press-fitting mechanism also includes a slide for installing a press-fitting loading seat, the slide can be slidably arranged on the frame through a second slide rail device, the press-fitting driver is located at the rear side of the slide, the slide is provided with a clamping seat cooperating with the telescopic shaft of the press-fitting driver and an abutment portion located at the front side of the clamping seat, the clamping seat is provided with a penetrating bayonet, and the middle outer periphery of the telescopic shaft of the press-fitting driver is provided with a movable limiting portion placed in the bayonet, the length of the movable limiting portion is greater than the width of the bayonet, so that the telescopic shaft of the press-fitting driver drives the press-fitting loading seat to perform a press-fitting operation by abutting on the abutment portion of the slide, and drives the press-fitting loading seat to perform a relative reset by pulling the clamping seat of the slide through the telescopic shaft.

7. The low-pressure EGR outlet pipe assembly press-fitting machine according to any one of claims 1 to 6, characterized in that The positioning support and the press-fitting loading seat are arranged in the same vertical plane, and the press-fitting direction of the press-fitting loading seat is arranged to be inclined upward along the horizontal direction.

8. The low-pressure EGR outlet pipe assembly press-fitting machine according to any one of claims 1 to 6, characterized in that, The frame is provided with a first detector for detecting whether the clamp mechanism is clamped with an air outlet pipe component, a second detector for detecting whether the clamp mechanism is clamped with the air outlet pipe component in place, and a third detector for detecting whether the pressure difference air intake pipe is pressed in place.

9. The low-pressure EGR exhaust pipe assembly press-fitting machine according to claim 3, characterized in that, The press-fitting mechanism also includes a fourth detector for detecting whether the press-fitting loading seat is loaded with a pressure differential air extraction pipe and a fifth detector for detecting whether the press-fitting loading seat is loaded with an assembly part fixing module.

10. The low-pressure EGR outlet pipe assembly press-fitting machine according to claim 3, characterized in that, It also includes a marking machine for marking the completion of the clamping operation on the air outlet connecting pipe component.

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