Exhaust pipe detection tool

Abstract

The utility model discloses an exhaust pipe detection tool which comprises a working table, a clamping working table, a clamping assembly, a positioning support, a detection sliding groove, a detection supporting rod, a detection threaded rod, a detection motor, a sealing protruding block, an inflation nozzle, an inflation pump, an inflation pipe and an air pressure detection meter. The clamping assembly is fixedly arranged above one end of the clamping workbench, the positioning support is fixedly arranged above the end, away from the clamping assembly, of the clamping workbench, the detection sliding grooves are formed in the top wall of the workbench and symmetrically formed in the two sides of the clamping workbench, and the detection sliding grooves penetrate through the top wall of the workbench. The detection supporting rods are slidably arranged above the workbench and symmetrically arranged on the two sides of the clamping workbench. The utility model belongs to the technical field of exhaust pipes, and particularly provides an exhaust pipe detection tool which clamps and fixes an exhaust pipe through a clamping arc plate and a positioning arc plate, is convenient for a sealing convex block to align at the center of the exhaust pipe, and is simple in structure, easy to operate and high in working efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of exhaust pipe technology, specifically referring to exhaust pipe testing fixtures. Background Technology

[0002] The exhaust pipe is part of the engine's exhaust system. Installed between the engine's exhaust manifold and the muffler, it serves to reduce vibration and noise, facilitate installation, and extend the lifespan of the exhaust muffler system. Therefore, exhaust pipes require airtightness testing after production. The current method for testing automotive exhaust pipes involves clamping and fixing the pipe, inserting a plug to block one end, and then performing the airtightness test. However, existing testing fixtures are cumbersome to use, requiring multiple adjustments, resulting in low efficiency and inaccurate test results. Therefore, a new type of exhaust pipe testing fixture is urgently needed to solve these problems. Utility Model Content

[0003] To solve the aforementioned problems, this utility model provides an exhaust pipe inspection fixture that uses a clamping arc plate and a positioning arc plate to clamp and fix the exhaust pipe, making it easy to align the sealing protrusion with the center of the drain pipe. This fixture is simple in structure, easy to operate, and has high working efficiency.

[0004] The technical solution adopted by this utility model is as follows: The exhaust pipe testing fixture of this utility model includes a workbench, a clamping workbench, a clamping assembly, a positioning bracket, a testing groove, a testing support rod, a testing threaded rod, a testing motor, a sealing protrusion, an inflation nozzle, an air pump, an inflation pipe, and a pressure gauge. The clamping workbench is fixed above the center of the workbench, the clamping assembly is fixed above one end of the clamping workbench, the positioning bracket is fixed above the end of the clamping workbench away from the clamping assembly, and the testing groove is located on the top wall of the workbench. The detection groove is symmetrically arranged on both sides of the clamping worktable. The detection support rod is slidably positioned above the worktable and symmetrically arranged on both sides of the clamping worktable. The lower end of the detection support rod is slidably engaged within the detection groove. The detection threaded rod is rotatably positioned within the worktable and passes through the detection groove and the lower end of the detection support rod. The detection threaded rod meshes with the lower end of the detection support rod. The detection motor is fixed to one side of the worktable. The output end of the detection motor passes through the side wall of the detection groove and is fixedly connected to the detection threaded rod. The sealing protrusion is fixed to one side of the upper end of the detection support rod, and the sealing protrusion is located on the side of the detection support rod near the clamping worktable. The inflation nozzle is located on one side of the upper end of the detection support rod near the positioning bracket, and the inflation nozzle is located on the side of the sealing protrusion away from the detection support rod. The air pump is fixed below the worktable, and the air inflation tube is located at the output end of the air pump. The end of the air inflation tube away from the air pump is connected to the inflation nozzle. The air pressure gauge is fixed to the upper end of the detection support rod near the clamping assembly. The test support rod is positioned away from the sealing protrusion. The clamping assembly fixes the exhaust pipe above the clamping worktable. At this time, the test motor drives the test threaded rod to rotate, which in turn drives the test support rod to move linearly along the test slide. The test support rod then moves the sealing protrusion closer to both ends of the exhaust pipe, causing the sealing protrusion to block both ends of the exhaust pipe. Then, the air pump starts and pumps gas into the exhaust pipe through the air inlet via the air inlet pipe. At this time, the air pressure gauge detects the air pressure inside the exhaust pipe, and the sealing performance of the exhaust pipe is determined by the reading on the air pressure gauge.

[0005] Furthermore, the clamping assembly includes a clamping fixing plate, a clamping guide rod, a clamping threaded rod, a clamping motor, a clamping arc plate, and a clamping support plate. The clamping fixing plate is disposed above the clamping worktable. The clamping guide rod is fixedly disposed above one end of the clamping worktable, and its upper end is fixedly connected to the clamping fixing plate. The clamping threaded rod is rotatably disposed above the end of the clamping worktable away from the clamping guide rod. The clamping motor is fixedly disposed above one end of the clamping fixing plate, and its output end passes through the clamping fixing plate and... The clamping threaded rod is fixedly connected, and the clamping arc plate is located between the clamping fixing plate and the clamping worktable. The clamping arc plates are symmetrically arranged, and the clamping support plate is fixed on one side of the clamping arc plate. The clamping guide rod and the clamping threaded rod pass through both ends of the clamping support plate. The clamping threaded rod meshes with one end of the clamping support plate. The clamping motor drives the clamping threaded rod to rotate, and the rotating clamping threaded rod drives the clamping support plate to move linearly along the clamping guide rod, so that the clamping support plate drives the clamping arc plates to move closer to each other, and the clamping arc plate fixes the exhaust pipe.

[0006] Furthermore, the positioning bracket is slidably disposed within the positioning arc plate, the positioning arc plate is symmetrically disposed within the positioning bracket, a positioning support plate is fixedly disposed on one side of the positioning arc plate, a positioning threaded rod is rotatably disposed within the upper end of the positioning bracket, the positioning threaded rod passes through the upper end of the positioning support plate, the positioning threaded rod meshes with the upper end of the positioning support plate, a positioning motor is fixedly disposed on one side of the upper end of the positioning bracket, the output end of the positioning motor passes through the side wall of the positioning bracket and is connected to the positioning threaded rod, a positioning guide rod is fixedly disposed within the lower end of the positioning bracket, the positioning guide rod passes through the lower end of the positioning support plate, the positioning threaded rod and the positioning guide rod are symmetrically disposed within the upper and lower ends of the positioning bracket, the positioning motor drives the positioning threaded rod to rotate, the rotating positioning threaded rod drives the positioning support plate to move towards the center of the positioning bracket, so that the positioning arc plates move closer to each other, thereby fixing the exhaust pipe at the center of the positioning bracket.

[0007] The beneficial effects of this utility model using the above structure are as follows: The exhaust pipe testing fixture proposed in this solution clamps and fixes the exhaust pipe by clamping the arc plate and positioning arc plate, which makes it easy to align the sealing protrusion with the center of the drain pipe. The exhaust pipe is inflated by the air inlet, and the air pressure test gauge is read to determine the sealing performance of the exhaust pipe. The structure is simple, the operation is simple, and the work efficiency is high. Attached Figure Description

[0008] Figure 1 This is a three-dimensional view of the exhaust pipe inspection fixture proposed in this solution;

[0009] Figure 2 This is a side view of the exhaust pipe inspection fixture proposed in this solution;

[0010] Figure 3 This is a schematic diagram of the clamping arc plate structure of the exhaust pipe testing fixture proposed in this solution;

[0011] Figure 4 This is a schematic diagram of the positioning bracket structure for the exhaust pipe inspection tooling proposed in this solution.

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. In the drawings: 1. Workbench; 2. Clamping workbench; 3. Clamping assembly; 4. Positioning bracket; 5. Detection groove; 6. Detection support rod; 7. Detection threaded rod; 8. Detection motor; 9. Sealing protrusion; 10. Inflation nozzle; 11. Inflation pump; 12. Inflation pipe; 13. Pressure gauge; 14. Clamping fixing plate; 15. Clamping guide rod; 16. Clamping threaded rod; 17. Clamping motor; 18. Clamping arc plate; 19. Clamping support plate; 20. Positioning arc plate; 21. Positioning support plate; 22. Positioning threaded rod; 23. Positioning motor; 24. Positioning guide rod. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0014] like Figures 1-4As shown, the exhaust pipe testing fixture proposed in this solution includes a workbench 1, a clamping workbench 2, a clamping assembly 3, a positioning bracket 4, a testing groove 5, a testing support rod 6, a testing threaded rod 7, a testing motor 8, a sealing protrusion 9, an inflation nozzle 10, an air pump 11, an inflation pipe 12, and a pressure gauge 13. The clamping workbench 2 is fixed above the center of the workbench 1. The clamping assembly 3 is fixed above one end of the clamping workbench 2. The positioning bracket 4 is fixed above the end of the clamping workbench 2 away from the clamping assembly 3. The testing groove 5 is located on the top wall of the workbench 1 and symmetrically arranged on both sides of the clamping workbench 2. The testing groove 5 penetrates the top wall of the workbench 1. The testing support rod 6 is slidably arranged above the workbench 1 and symmetrically arranged on both sides of the clamping workbench 2. The lower end of the testing support rod 6 is slidably engaged in the testing groove 5. The testing threaded rod 7 is rotatably arranged in the workbench 1 and penetrates the testing groove 5. The lower end of the test support rod 6 is connected to the test threaded rod 7, which meshes with the lower end of the test support rod 6. The test motor 8 is fixed to one side of the workbench 1, and the output end of the test motor 8 passes through the side wall of the test slide groove 5 and is fixedly connected to the test threaded rod 7. The sealing protrusion 9 is fixed to one side of the upper end of the test support rod 6, and the sealing protrusion 9 is located on the side of the test support rod 6 near the clamping workbench 2. The air inlet 10 is located on one side of the upper end of the test support rod 6 near the positioning bracket 4, and the air inlet 10 is located on the side of the sealing protrusion 9 away from the test support rod 6. The air pump 11 is fixed below the workbench 1, and the air inlet pipe 12 is located at the output end of the air pump 11. The end of the air inlet pipe 12 away from the air pump 11 is connected to the air inlet 10. The air pressure gauge 13 is fixed to the upper end of the test support rod 6 near the clamping assembly 3, and the air pressure gauge 13 is fixed to the side of the test support rod 6 away from the sealing protrusion 9.

[0015] like Figure 3 As shown, the clamping assembly 3 includes a clamping fixing plate 14, a clamping guide rod 15, a clamping threaded rod 16, a clamping motor 17, a clamping arc plate 18, and a clamping support plate 19. The clamping fixing plate 14 is disposed above the clamping worktable 2. The clamping guide rod 15 is fixedly disposed above one end of the clamping worktable 2, and its upper end is fixedly connected to the clamping fixing plate 14. The clamping threaded rod 16 is rotatably disposed above the end of the clamping worktable 2 away from the clamping guide rod 15. The clamping motor... 17 is fixed above one end of the clamping fixing plate 14. The output end of the clamping motor 17 passes through the clamping fixing plate 14 and is fixedly connected to the clamping threaded rod 16. The clamping arc plate 18 is disposed between the clamping fixing plate 14 and the clamping worktable 2. The clamping arc plates 18 are symmetrically arranged. The clamping support plate 19 is fixed on one side of the clamping arc plate 18. The clamping guide rod 15 and the clamping threaded rod 16 pass through both ends of the clamping support plate 19 respectively. The clamping threaded rod 16 meshes with one end of the clamping support plate 19.

[0016] like Figure 4 As shown, the positioning bracket 4 is slidably disposed within the positioning arc plate 20, and the positioning arc plate 20 is symmetrically disposed within the positioning bracket 4. A positioning support plate 21 is fixedly disposed on one side of the positioning arc plate 20. A positioning threaded rod 22 is rotatably disposed within the upper end of the positioning bracket 4. The positioning threaded rod 22 passes through the upper end of the positioning support plate 21 and engages with the upper end of the positioning support plate 21. A positioning motor 23 is fixedly disposed on one side of the upper end of the positioning bracket 4. The output end of the positioning motor 23 passes through the side wall of the positioning bracket 4 and is connected to the positioning threaded rod 22. A positioning guide rod 24 is fixedly disposed within the lower end of the positioning bracket 4 and passes through the lower end of the positioning support plate 21. The positioning threaded rod 22 and the positioning guide rod 24 are symmetrically disposed within the upper and lower ends of the positioning bracket 4.

[0017] In practical use, the exhaust pipe is positioned above the clamping worktable 2. At this time, the clamping motor 17 drives the clamping threaded rod 16 to rotate. The rotating clamping threaded rod 16 causes the clamping support plate 19 to move linearly along the clamping guide rod 15, bringing the clamping support plate 19 and clamping arc plates 18 closer together. The clamping arc plates 18 then fix the exhaust pipe. Simultaneously, the positioning motor 23 drives the positioning threaded rod 22 to rotate. The rotating positioning threaded rod 22 causes the positioning support plate 21 to move towards the center of the positioning bracket 4, bringing the positioning arc plates 20 closer together. Thus, the exhaust pipe is fixed to the positioning bracket 4. At the center, the center of the exhaust pipe is conveniently fixed to one side of the sealing protrusion 9. At this time, the detection motor 8 drives the detection threaded rod 7 to rotate, and the detection threaded rod 7 drives the detection support rod 6 to move linearly along the detection slide groove 5. The detection support rod 6 drives the sealing protrusion 9 to approach the two ends of the exhaust pipe, so that the sealing protrusion 9 blocks the two ends of the exhaust pipe. Then the air pump 11 starts, and the air pump 11 fills the exhaust pipe with gas from the air nozzle 10 through the air pipe 12. At this time, the air pressure gauge 13 detects the air pressure in the exhaust pipe, and the sealing performance of the exhaust pipe is judged by the reading on the air pressure gauge 13.

[0018] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An exhaust pipe testing fixture, characterized in that: The system includes a worktable, a clamping worktable, a clamping assembly, a positioning bracket, a detection groove, a detection support rod, a detection threaded rod, a detection motor, a sealing protrusion, an inflation nozzle, an air pump, an inflation hose, and a pressure gauge. The clamping worktable is fixed above the center of the worktable. The clamping assembly is fixed above one end of the clamping worktable. The positioning bracket is fixed above the end of the clamping worktable furthest from the clamping assembly. The detection groove is located on the top wall of the worktable and symmetrically arranged on both sides of the clamping worktable, penetrating the top wall. The detection support rod is slidably positioned above the worktable and symmetrically arranged on both sides of the clamping worktable, with its lower end slidably engaged within the detection groove. The detection threaded rod is rotatably positioned within the worktable and penetrates the detection groove and the lower end of the detection support rod. The detection threaded rod engages with the lower end of the detection support rod. The detection motor is fixed to one side of the worktable. The output end of the detection motor passes through the side wall of the detection slide groove and is fixedly connected to the detection threaded rod. The sealing protrusion is fixed to one side of the upper end of the detection support rod. The sealing protrusion is located on the side of the detection support rod near the clamping worktable. The inflation nozzle is located on one side of the upper end of the detection support rod near the positioning bracket. The inflation nozzle is located on the side of the sealing protrusion away from the detection support rod. The air pump is fixed below the worktable. The air pump output end is located at the air pump output end. The end of the air pump away from the air pump is connected to the inflation nozzle. The air pressure gauge is fixed to the upper end of the detection support rod near the clamping assembly. The air pressure gauge is fixed to the side of the detection support rod away from the sealing protrusion.

2. The exhaust pipe testing fixture according to claim 1, characterized in that: The clamping assembly includes a clamping fixing plate, a clamping guide rod, a clamping threaded rod, a clamping motor, a clamping arc plate, and a clamping support plate. The clamping fixing plate is located above the clamping worktable. The clamping guide rod is fixedly located above one end of the clamping worktable, and its upper end is fixedly connected to the clamping fixing plate. The clamping threaded rod is rotatably located above the end of the clamping worktable away from the clamping guide rod. The clamping motor is fixedly located above one end of the clamping fixing plate, and its output end passes through the clamping fixing plate and is fixedly connected to the clamping threaded rod. The clamping arc plate is located between the clamping fixing plate and the clamping worktable, and the clamping arc plates are symmetrically arranged. The clamping support plate is fixedly located on one side of the clamping arc plate. The clamping guide rod and the clamping threaded rod respectively pass through both ends of the clamping support plate, and the clamping threaded rod engages with one end of the clamping support plate.

3. The exhaust pipe testing fixture according to claim 1, characterized in that: The positioning bracket is slidably disposed within the positioning arc plate, and the positioning arc plate is symmetrically disposed within the positioning bracket.

4. The exhaust pipe testing fixture according to claim 3, characterized in that: A positioning support plate is fixed on one side of the positioning arc plate.

5. The exhaust pipe testing fixture according to claim 4, characterized in that: The upper end of the positioning bracket is provided with a positioning threaded rod that rotatably passes through the upper end of the positioning support plate and engages with the upper end of the positioning support plate.

6. The exhaust pipe testing fixture according to claim 5, characterized in that: A positioning motor is fixedly installed on one side of the upper end of the positioning bracket, and the output end of the positioning motor passes through the side wall of the positioning bracket and is connected to the positioning threaded rod.

7. The exhaust pipe testing fixture according to claim 6, characterized in that: A positioning guide rod is fixedly installed inside the lower end of the positioning bracket. The positioning guide rod passes through the lower end of the positioning support plate. The positioning threaded rod and the positioning guide rod are symmetrically arranged inside the upper and lower ends of the positioning bracket.

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