CN217007016U - Blast pipe solder joint detection device - Google Patents

Abstract

The utility model provides a welding spot detection device for an exhaust pipe, and belongs to the technical field of detection devices. The welding spot detection device for the exhaust pipe solves the technical problems that an existing welding spot detection device for the exhaust pipe cannot automatically detect and can only detect one welding spot at each time. This blast pipe solder joint detection device includes the frame, be provided with conveying mechanism in the frame, the last frock platform that is used for placing the blast pipe that is provided with a plurality of conveying mechanism, a plurality of detection sensor has set firmly in the frame, it all moves towards conveying mechanism just to detect the sensor in conveying mechanism's top or both sides, the mounting bracket has been linked firmly in the frame, one side of frame has set firmly the slide, be provided with on the mounting bracket and can transplant the blast pipe on the conveying mechanism to the manipulator on the slide, the manipulator is located between detection sensor and conveying mechanism's the discharge end. The utility model can realize automatic one-time detection of a plurality of welding points on the exhaust pipe and can automatically remove the exhaust pipe with abnormal welding.

Description

Blast pipe solder joint detection device

Technical Field

The utility model belongs to the technical field of detection equipment, and relates to an exhaust pipe welding spot detection device.

Background

The exhaust pipe is an irregular-shaped pipe fitting, parts such as a silencer, a spring and a sealing flange are usually installed on the exhaust pipe, the pipe is fixedly connected with other parts through welding between the pipe and the pipe, welding spots need to be detected in the production process of the exhaust pipe in order to ensure the product to be qualified, the detection is manual detection at present, the labor cost is high, the welding detection is not accurate and reliable, and the product delivery qualification rate cannot be guaranteed.

Chinese patent (publication number: CN 10568147A; published date: 2019-12-13) discloses welding spot detection equipment, which comprises two bottom plates, wherein the tops of the two bottom plates are fixedly provided with a same top plate, the tops of the top plates are fixedly provided with two vertical plates, one side, close to each other, of the two vertical plates is slidably provided with a same sliding plate, the bottoms of the sliding plates are slidably provided with first motors, output shafts of the first motors are fixedly provided with welding spot detectors, a placing table is arranged above the top plates, workpieces are placed on the top of the placing table, and the bottoms of the placing table are fixedly provided with connecting seats.

Although the welding point detection device disclosed in the above patent document realizes automatic detection of a welding point on a workpiece, only one welding point on the workpiece can be detected in a single detection process, if other welding points on the workpiece need to be detected, the position of the workpiece needs to be changed or the workpiece needs to be turned over, a plurality of welding points on the workpiece cannot be detected in a single detection process, and the work efficiency is low.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model provides a device for detecting welding spots of an exhaust pipe, and the technical problems to be solved by the utility model are as follows: how to improve the efficiency and the accurate reliability that blast pipe solder joint detected.

The purpose of the utility model can be realized by the following technical scheme:

the utility model provides an exhaust pipe solder joint detection device, includes the frame, its characterized in that, be provided with conveying mechanism in the frame, conveying mechanism's one end is the feed end, conveying mechanism's the other end is the discharge end, the last frock platform that is used for placing the blast pipe that is provided with a plurality of conveying mechanism, a plurality of detection sensor has set firmly in the frame, it is located to detect the sensor conveying mechanism's top or both sides just it all moves towards to detect the sensor conveying mechanism, the mounting bracket has been linked firmly in the frame, one side of frame has set firmly the slide, be provided with on the mounting bracket can transplant the blast pipe on the conveying mechanism extremely manipulator on the slide, the manipulator is located detect the sensor with between conveying mechanism's the discharge end.

The working principle is as follows: the technical scheme is specially used for a special exhaust pipe with an irregular shape, the exhaust pipe is provided with a plurality of parts such as a silencer, a spring, a sealing flange and the like, and a plurality of welding points are arranged among the exhaust pipe, the silencer and the sealing flange; when the exhaust pipe welding spot detection device is used, the exhaust pipe is placed in a tool table positioned at the feeding end of a conveying mechanism, the conveying mechanism drives the tool table and the exhaust pipe on the tool table to move from the feeding end to the discharging end of the conveying mechanism, when the exhaust pipe moves to the position of a monitoring sensor, the detecting sensors above and at two sides of the conveying mechanism respectively correspond to a plurality of welding spots at different positions on the exhaust pipe, when the detecting sensor detects that welding abnormality exists on the exhaust pipe, information is transmitted to a main control mechanism on the exhaust pipe welding spot detection device, when the conveying mechanism drives the exhaust pipe with welding abnormality to move to the position near a manipulator through the tool table, the main control mechanism controls the manipulator on the mounting frame to work, the manipulator grabs the exhaust pipe with welding abnormality and moves the exhaust pipe to a slide way at one side of a frame, and the exhaust pipe is separated from the exhaust pipe welding spot detection device through the slide way, the exhaust pipe without abnormal welding enters the next working procedure under the driving of the conveying mechanism. The exhaust pipe welding spot detection device realizes automatic detection of welding spots on the exhaust pipe, and can simultaneously detect a plurality of welding spots on one exhaust pipe in a single working process by arranging a plurality of detection sensors, so that the exhaust pipe welding spot detection device is high in working efficiency. Still be provided with the manipulator that is used for pressing from both sides to get the blast pipe that has the welding anomaly on this device, consequently this blast pipe solder joint detection device can remove conveniently and has the blast pipe that has the welding anomaly.

In foretell blast pipe solder joint detection device, the mounting bracket is rectangle box structure, the mounting bracket spanes conveying mechanism is last just the both sides of mounting bracket link firmly the both sides of frame, along conveying mechanism's direction of delivery has seted up the activity through-hole on the mounting bracket, the frock platform can pass the activity through-hole. The conveying mechanism drives the tool table and the exhaust pipe on the tool table to movably penetrate through the movable through hole in the mounting frame.

In foretell blast pipe solder joint detection device, the manipulator is including setting up actuating mechanism on the mounting bracket and setting are in the last mechanical fixture of actuating mechanism, actuating mechanism is located the mounting bracket orientation conveying mechanism's feed end one side, the slide orientation the outside and the slant of frame set up down. The driving mechanism drives the mechanical clamp to move and grab the exhaust pipe.

In foretell blast pipe solder joint detection device, detection sensor is respectively for setting up the industry camera one and the interval setting of conveying mechanism one side are in the industry camera two, industry camera three, industry camera four and the industry camera five of conveying mechanism top, the last camera of detection sensor all faces conveying mechanism, detection sensor links firmly through the installation pole in the frame. The camera on the industrial camera detects the blast pipe on the transmission band.

In the exhaust pipe welding point detection device, the first industrial camera is located at a position close to the feeding end of the conveying mechanism, the second industrial camera and the fifth industrial camera are located above the conveying mechanism and distributed on two sides of the conveying mechanism, and the fourth industrial camera is located right above the conveying mechanism. The first industrial camera, the second industrial camera, the third industrial camera and the fifth industrial camera respectively correspond to different welding spots on the exhaust pipe, and the fourth industrial camera is specially used for detecting whether a spring installed on the exhaust pipe is in place or not.

In the exhaust pipe welding spot detection device, the conveying mechanism is a conveying belt, and the tooling tables are fixedly connected to the conveying belt at uniform intervals along the movement direction of the conveying belt. The transmission band drives the tooling table and the exhaust pipe to move.

In foretell blast pipe solder joint detection device, actuating mechanism includes horizontal drive subassembly, sliding seat and vertical drive subassembly, the upper end of mounting bracket side links firmly the horizontally mounting panel, horizontal drive subassembly with the mounting panel is connected, the vertical setting of sliding seat and with horizontal drive subassembly is connected, vertical drive subassembly also with the sliding seat is connected, mechanical fixture sets up vertical drive subassembly's lower extreme. The transverse driving component drives the mechanical clamp to transversely move, and the longitudinal driving component drives the mechanical clamp to longitudinally move.

In foretell blast pipe solder joint detection device, the transverse driving subassembly includes slide rail, slider, cylinder one, fastener and fixed plate, the slide rail level set up and link firmly not on the mounting panel with the one end that the mounting bracket corresponds a side, the slider links firmly go to on the sliding seat the side of mounting bracket, the slide rail with slider sliding fit, a cylinder level set up and be located the upside of mounting panel, cylinder one and mounting panel pass through the fastener links firmly, cylinder one go up output shaft one with the sliding seat passes through the fixed plate links firmly. The first cylinder drives the sliding seat to move transversely through the fixing plate, the sliding seat drives the sliding block fixedly connected with the sliding seat to move on the sliding rail fixedly connected with the mounting plate, and the longitudinal driving assembly and the mechanical clamp are driven to move transversely in the transverse moving process of the sliding seat.

In foretell blast pipe solder joint detection device, vertical drive assembly includes pole setting one, pole setting two, spout, cylinder two and diaphragm, the spout links firmly the sliding seat is kept away from a side of slide rail, the equal vertical setting of pole setting one and pole setting two, pole setting one slides and sets up in the spout, the upper end of pole setting two with the lower extreme of pole setting one links firmly, mechanical fixture links firmly the lower extreme of pole setting two, the diaphragm level sets up and links firmly the top of sliding seat, the also vertical setting of cylinder two, two activities of output shaft on the cylinder are passed the diaphragm and with the top of pole setting one links firmly. The cylinder II drives the vertical rod I to longitudinally move in a sliding groove fixedly connected to the sliding seat, the vertical rod I drives the vertical rod II to longitudinally move, and the vertical rod II drives the mechanical clamp to longitudinally move.

In the welding spot detection device for the exhaust pipe, a fixed rod is fixedly connected to one side edge, close to the position of the mounting frame, of the upper side face of the rack, one side plate of the slide is fixedly connected with the fixed rod, and the other side plate of the slide is fixedly connected with the mounting frame. The slide installation is comparatively stable.

Compared with the prior art, the utility model has the following advantages:

1. this blast pipe solder joint detection device has realized automated inspection and can once only detect a plurality of welding points and spring on the single blast pipe, need not frequently remove or the blast pipe that overturns, and work efficiency is high.

2. The mechanical fixture on the exhaust pipe welding spot detection device can move the exhaust pipe with an abnormal condition detected by the industrial camera to the slide way under the driving of the driving mechanism, so that the abnormal exhaust pipe is removed, convenience and rapidness are realized, and the movement is accurate and reliable.

3. Horizontal drive assembly, vertical drive assembly and sliding seat on the actuating mechanism mutually support among this blast pipe solder joint detection device, have realized comparatively conveniently that drive mechanical fixture is horizontal or vertical removal.

Drawings

Fig. 1 is a schematic perspective view of the exhaust pipe welding spot detection device.

FIG. 2 is a schematic diagram of a partial perspective structure of the exhaust pipe welding spot detection apparatus.

Fig. 3 is a schematic diagram of a partial three-dimensional structure of the exhaust pipe welding spot detection device.

Fig. 4 is a schematic perspective view of the exhaust pipe.

In the figure, 1, a frame; 2. a conveying mechanism; 2a, a feed end; 2b, a discharge end; 3. a tooling table; 4. a detection sensor; 4a, a first industrial camera; 4b, a second industrial camera; 4c, an industrial camera III; 4d, an industrial camera IV; 4e, an industrial camera five; 4f, a camera; 5. a mounting frame; 5a, a movable through hole; 6. a slideway; 7. a manipulator; 7a, a driving mechanism; 7a1, lateral drive assembly; 7a4, slide rail; 7a5, slider; 7a6, cylinder one; 7a7, fasteners; 7a8, fixing plate; 7a2, sliding seat; 7a3, longitudinal drive assembly; 7a9 and a first vertical rod; 7a10 and a second upright rod; 7a11, a chute; 7a12, cylinder two; 7a13, cross board; 7b, a mechanical clamp; 8. mounting a rod; 9. mounting a plate; 10. a fixing rod; 11. a flange plate; 12. a first copper pipe; 13. a sound-deadening bag; 14. a second copper pipe; 15. a spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 4, the exhaust pipe welding spot detection device includes a frame 1, a conveying mechanism 2 is disposed on the frame 1, one end of the conveying mechanism 2 is a feeding end 2a, the other end of the conveying mechanism 2 is a discharging end 2b, a plurality of tool stations 3 for placing the exhaust pipe are disposed on the conveying mechanism 2, the conveying mechanism 2 is a conveying belt, the conveying belt in the embodiment is a prior art, and is not described herein, for example, the conveying belt may be the same or similar to a conveying belt in a chinese patent (publication No. CN1093383991A) named "a conveying belt based on gear transmission used at an inlet and an outlet", the tool stations 3 are fixedly connected to the conveying belt at uniform intervals along a moving direction of the conveying belt, a plurality of detection sensors 4 are fixedly disposed on the frame 1, the detection sensors 4 are disposed above or on both sides of the conveying mechanism 2, and the detection sensors 4 face the conveying mechanism 2, the frame 1 is fixedly connected with a mounting frame 5, the mounting frame 5 is of a rectangular box body structure, the mounting frame 5 stretches across the conveying mechanism 2, two sides of the mounting frame 5 are fixedly connected with two sides of the frame 1, a movable through hole 5a is formed in the mounting frame 5 along the conveying direction of the conveying mechanism 2, the tool table 3 can penetrate through the movable through hole 5a, one side of the frame 1 is fixedly provided with a slide 6, a fixed rod 10 is fixedly connected to one side of the upper side surface of the frame 1 close to the position of the mounting frame 5, one side plate of the slide 6 is fixedly connected with the fixed rod 10, the other side plate of the slide 6 is fixedly connected with the mounting frame 5, a manipulator 7 capable of transplanting an exhaust pipe on the conveying mechanism 2 to the slide 6 is arranged on the mounting frame 5, the manipulator 7 is positioned between the detection sensor 4 and a discharge end 2b of the conveying mechanism 2, the manipulator 7 comprises a driving mechanism 7a arranged on the mounting frame 5 and a mechanical clamp 7b arranged on the driving mechanism 7a, the driving mechanism 7a is located on the side of the mounting frame 5 facing the feeding end 2a of the conveying mechanism 2, and the slide way 6 is arranged obliquely downwards and faces the outer side of the rack 1.

The exhaust pipe to be detected is placed on the tooling table 3, the conveyor belt drives the tooling table 3 and the exhaust pipe to move from the feeding end 2a to the discharging end 2b on the conveyor belt, when the exhaust pipe moves to the position of the detection sensor 4 above the transmission belt or the positions of the detection sensors 4 fixedly connected with the mounting rod 8 at two sides along with the transmission belt, the detection sensor 4 detects each welding point on the exhaust pipe, when the detection sensor 4 detects welding abnormity, the information is immediately transmitted to the main control mechanism, when the abnormal exhaust pipe moves to the vicinity of the mechanical clamp 7b along with the transmission belt, the main control mechanism controls the driving mechanism 7a to work, when the exhaust pipe with welding abnormality moves to the lower side of the mechanical clamp 7b, the driving mechanism 7a drives the mechanical clamp 7b to move, the mechanical clamp 7b grabs the exhaust pipe and moves the exhaust pipe onto the slideway 6, the exhaust pipe is removed, and the exhaust pipe without welding abnormality moves to the next process along with the conveyor belt. The exhaust pipe welding spot detection device can be used for automatically and detecting a plurality of welding spots on a single exhaust pipe at one time and conveniently removing the exhaust pipe with abnormal welding.

Further, as shown in fig. 2 and 3, the driving mechanism 7a includes a transverse driving assembly 7a1, a sliding seat 7a2 and a longitudinal driving assembly 7a3, a horizontal mounting plate 9 is fixedly connected to an upper end of one side surface of the mounting frame 5, the transverse driving assembly 7a1 is connected to the mounting plate 9, the sliding seat 7a2 is vertically arranged and connected to the transverse driving assembly 7a1, the longitudinal driving assembly 7a3 is also connected to the sliding seat 7a2, and the mechanical clamp 7b is arranged at a lower end of the longitudinal driving assembly 7a 3. The transverse driving assembly 7a1 comprises a sliding rail 7a4, a sliding block 7a5, a first air cylinder 7a6, a fastener 7a7 and a fixing plate 7a8, wherein the sliding rail 7a4 is horizontally arranged and fixedly connected to one end of the mounting plate 9, which is not on the side corresponding to the mounting frame 5, the sliding block 7a5 is fixedly connected to the sliding seat 7a2 and faces towards one side of the mounting frame 5, the sliding rail 7a4 is in sliding fit with the sliding block 7a5, the first air cylinder 7a6 is horizontally arranged and located on the upper side of the mounting plate 9, the first air cylinder 7a6 and the mounting plate 9 are fixedly connected through the fastener 7a7, and a first output shaft on the first air cylinder 7a6 is fixedly connected with the sliding seat 7a2 through the fixing plate 7a 8. The longitudinal driving assembly 7a3 includes a first vertical rod 7a9, a second vertical rod 7a10, a sliding groove 7a11, a second air cylinder 7a12 and a transverse plate 7a13, the sliding groove 7a11 is fixedly connected to a side surface of the sliding seat 7a2 away from the sliding rail 7a4, the first vertical rod 7a9 and the second vertical rod 7a10 are both vertically arranged, the first vertical rod 7a9 is slidably arranged in the sliding groove 7a11, an upper end of the second vertical rod 7a10 is fixedly connected to a lower end of the first vertical rod 7a9, a mechanical clamp 7b is fixedly connected to a lower end of the second vertical rod 7a10, the transverse plate 7a13 is horizontally arranged and fixedly connected to a top end of the sliding seat 7a2, the second air cylinder 7a12 is also vertically arranged, and an output shaft two on the second air cylinder 7a12 movably passes through the transverse plate 7a13 and is fixedly connected to a top end of the first vertical rod 7a 9.

An output shaft I on the first air cylinder 7a6 drives the sliding seat 7a2 to transversely move through the fixing plate 7a8, the sliding block 7a5 moves on the sliding rail 7a4, and the sliding seat 7a2 drives the longitudinal driving assembly 7a3 and the mechanical clamp 7b to transversely move; the output shaft II on the cylinder II 7a12 drives the upright stanchion I7 a9 to move longitudinally on the sliding chute 7a11, the upright stanchion I7 a9 drives the upright stanchion II 7a10 to move longitudinally, and the upright stanchion II 7a10 drives the mechanical clamp 7b to move longitudinally. The mechanical clamp 7b is driven by the driving mechanism 7a to move flexibly.

Further, as shown in fig. 1, the detection sensors 4 are a first industrial camera 4a disposed on one side of the conveying mechanism 2, a second industrial camera 4b, a third industrial camera 4c, a fourth industrial camera 4d and a fifth industrial camera 4e disposed above the conveying mechanism 2 at intervals, cameras 4f on the detection sensors 4 face the conveying mechanism 2, the detection sensors 4 are fixedly connected to the rack 1 through the mounting rods 8, the first industrial camera 4a is located at a position close to the feeding end 2a of the conveying mechanism 2, the second industrial camera 4b and the fifth industrial camera 4e are located above the conveying mechanism 2 and distributed on two sides of the conveying mechanism 2, and the fourth industrial camera 4d is located directly above the conveying mechanism 2.

As shown in fig. 4, the exhaust pipe in this embodiment includes a first copper pipe 12, a second copper pipe 14, a silencing package 13, and a flange 11, the first industrial camera 4a detects a welding point between the first copper pipe 12 and the silencing package 13, the second industrial camera 4b detects a welding point between the flange 11 and the first copper pipe 12, the third industrial camera 4c detects a welding point in the middle of the silencing package 13, the fifth industrial camera 4e detects a welding point between the silencing package 13 and the second copper pipe 14, and a camera 4f on the industrial camera photographs each welding point to determine whether there is welding abnormality; the industrial camera IV 4d detects the spring 15 on the copper pipe II, the camera 4f on the spring 15 shoots the spring, and whether the spring 15 exists or not is judged.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although more 1, gantry is used herein; 2. a conveying mechanism; 2a, a feed end; 2b, a discharge end; 3. a tooling table; 4. a detection sensor; 4a, a first industrial camera; 4b, a second industrial camera; 4c, an industrial camera III; 4d, an industrial camera IV; 4e, an industrial camera five; 4f, a camera; 5. a mounting frame; 5a, a movable through hole; 6. a slideway; 7. a manipulator; 7a, a driving mechanism; 7a1, lateral drive assembly; 7a4, slide rail; 7a5, slider; 7a6, cylinder one; 7a7, fasteners; 7a8, fixing plate; 7a2, sliding seat; 7a3, longitudinal drive assembly; 7a9 and a first vertical rod; 7a10 and a second upright rod; 7a11, a chute; 7a12, cylinder two; 7a13, cross board; 7b, a mechanical clamp; 8. mounting a rod; 9. mounting a plate; 10. Fixing the rod; 11. a flange plate; 12. a first copper pipe; 13. a sound-deadening bag; 14. a second copper pipe; 15. springs, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention and they are to be interpreted as any additional limitation which is not in accordance with the spirit of the present invention.

Claims (10)

1. The exhaust pipe welding spot detection device comprises a rack (1) and is characterized in that a conveying mechanism (2) is arranged on the rack (1), one end of the conveying mechanism (2) is a feeding end (2a), the other end of the conveying mechanism (2) is a discharging end (2b), a plurality of tool tables (3) used for placing exhaust pipes are arranged on the conveying mechanism (2), a plurality of detection sensors (4) are fixedly arranged on the rack (1), the detection sensors (4) are positioned above or on two sides of the conveying mechanism (2), the detection sensors (4) face the conveying mechanism (2), a mounting frame (5) is fixedly connected onto the rack (1), a slide way (6) is fixedly arranged on one side of the rack (1), a manipulator (7) capable of transplanting the exhaust pipes on the conveying mechanism (2) onto the slide way (6) is arranged on the mounting frame (5), the manipulator (7) is positioned between the detection sensor (4) and the discharge end (2b) of the conveying mechanism (2).

2. The exhaust pipe welding spot detection device according to claim 1, wherein the mounting frame (5) is of a rectangular box structure, the mounting frame (5) spans over the conveying mechanism (2) and two sides of the mounting frame (5) are fixedly connected to two sides of the rack (1), a movable through hole (5a) is formed in the mounting frame (5) along the conveying direction of the conveying mechanism (2), and the tool table (3) can penetrate through the movable through hole (5 a).

3. The exhaust pipe welding spot detection device according to claim 1, wherein the manipulator (7) comprises a driving mechanism (7a) arranged on the mounting frame (5) and a mechanical clamp (7b) arranged on the driving mechanism (7a), the driving mechanism (7a) is positioned on one side of the mounting frame (5) facing the feeding end (2a) of the conveying mechanism (2), and the slide way (6) is arranged obliquely downward and faces the outer side of the rack (1).

4. The exhaust pipe welding point detection device according to claim 1, 2 or 3, wherein the detection sensors (4) are a first industrial camera (4a) arranged on one side of the conveying mechanism (2) and a second industrial camera (4b), a third industrial camera (4c), a fourth industrial camera (4d) and a fifth industrial camera (4e) which are arranged above the conveying mechanism (2) at intervals, cameras (4f) on the detection sensors (4) face the conveying mechanism (2), and the detection sensors (4) are fixedly connected to the rack (1) through mounting rods (8).

5. The exhaust pipe welding spot detection device according to claim 4, wherein the first industrial camera (4a) is located at a position close to the feeding end (2a) of the conveying mechanism (2), the second industrial camera (4b) and the fifth industrial camera (4e) are located above the conveying mechanism (2) and distributed at two sides of the conveying mechanism (2), and the fourth industrial camera (4d) is located right above the conveying mechanism (2).

6. The exhaust pipe welding spot detection device according to claim 1, 2 or 3, wherein the conveying mechanism (2) is a conveyor belt, and the tooling tables (3) are fixedly connected to the conveyor belt at regular intervals along the movement direction of the conveyor belt.

7. The exhaust pipe solder joint detection device according to claim 3, wherein the driving mechanism (7a) comprises a transverse driving assembly (7a1), a sliding seat (7a2) and a longitudinal driving assembly (7a3), a horizontal mounting plate (9) is fixedly connected to the upper end of one side surface of the mounting frame (5), the transverse driving assembly (7a1) is connected with the mounting plate (9), the sliding seat (7a2) is vertically arranged and connected with the transverse driving assembly (7a1), the longitudinal driving assembly (7a3) is also connected with the sliding seat (7a2), and the mechanical clamp (7b) is arranged at the lower end of the longitudinal driving assembly (7a 3).

8. The exhaust pipe weld spot detection device according to claim 7, wherein the transverse driving assembly (7a1) comprises a slide rail (7a4), a slide block (7a5), a first cylinder (7a6), a fastener (7a7) and a fixing plate (7a8), the slide rail (7a4) is horizontally arranged, the slide block (7a5) is fixedly connected to the slide seat (7a2) and faces one side of the mounting frame (5), the slide rail (7a4) is in sliding fit with the slide block (7a5), the first cylinder (7a6) is horizontally arranged and located on the upper side of the mounting plate (9), the first cylinder (7a6) and the mounting plate (9) are fixedly connected through the fastener (7a7), and a first output shaft on the first cylinder (7a6) and the slide seat (7a2) are fixedly connected through the fixing plate (7a 8).

9. The exhaust pipe weld spot detection device according to claim 8, wherein the longitudinal driving assembly (7a3) comprises a first vertical rod (7a9), a second vertical rod (7a10), a sliding groove (7a11), a second air cylinder (7a12) and a transverse plate (7a13), the sliding groove (7a11) is fixedly connected to one side surface of the sliding seat (7a2) far away from the sliding rail (7a4), the first vertical rod (7a9) and the second vertical rod (7a10) are both vertically arranged, the first vertical rod (7a9) is slidably arranged in the sliding groove (7a11), the upper end of the second vertical rod (7a10) is fixedly connected to the lower end of the first vertical rod (7a9), the mechanical clamp (7b) is fixedly connected to the lower end of the second vertical rod (7a10), the transverse plate (7a13) is horizontally arranged and fixedly connected to the top end of the sliding seat (7a2), and the second air cylinder (7a12) is also vertically arranged, and an output shaft II on the second air cylinder (7a12) movably penetrates through the transverse plate (7a13) and is fixedly connected with the top end of the first vertical rod (7a 9).

10. The exhaust pipe welding spot detection device according to claim 3, wherein a fixing rod (10) is fixedly connected to one side of the upper side face of the rack (1) close to the mounting rack (5), one side plate of the slide (6) is fixedly connected with the fixing rod (10), and the other side plate of the slide (6) is fixedly connected with the mounting rack (5).

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