A compression testing device for aluminum flat tubes of automobile intercoolers

Abstract

The present invention discloses a pressure resistance testing device for aluminum flat tubes of automobile intercoolers, belonging to the field of pressure resistance testing devices. The device comprises a test chamber and an aluminum flat tube. A salt spray generator is provided inside the test chamber, a chamber cover is provided on the top of the test chamber, an explosion pressure testing mechanism is provided on one side of the test chamber, a control console is provided on the other side of the test chamber, and a loading assembly is provided inside the control console. The present invention provides an explosion pressure testing mechanism, and the airflow in the test duct and the aluminum flat tube is rapidly expanded by the explosion of a gunpowder bag, thereby testing the explosion pressure resistance of the aluminum flat tube. Multiple explosion bolts can be loaded through the loading assembly, and the flexibility of the testing process is increased by setting explosion bolts of different equivalents. The function of continuous explosion pressure testing is achieved by the coordinated use of a placement block and a turntable. The explosion pressure testing mechanism and the salt spray generator are used in combination to test the explosion pressure resistance of the aluminum flat tube at different aging levels.

Description

Technical Field

[0001] The present invention relates to the technical field of pressure resistance detection devices, in particular to a pressure resistance detection device for aluminum flat tubes of automobile intercoolers. Background Art

[0002] The intercooler is a key component of the supercharging system and is typically made of aluminum flat tubes and corrugated aluminum sheets. To evaluate the durability of the intercooler, a pressure test is required. The existing testing method involves injecting water into the aluminum flat tubes to increase the internal pressure, obtaining data on the hydrostatic pressure resistance of the aluminum flat tubes. This data is then converted to atmospheric pressure resistance.

[0003] During use, the car intercooler is not only subjected to static pressure. If the engine detonates due to premature ignition or carbon deposits, the explosion pressure generated by the detonation will be transmitted to the aluminum flat tube through the intercooler pipeline, and may cause the aluminum flat tube to burst. As the heat generated by the detonation gradually dissipates, the gas in the aluminum flat tube will cool and contract, resulting in negative pressure inside the pipeline, which may cause the tube wall to sag. At the same time, the intercooler will age after long-term use, and its anti-explosion pressure performance will vary with the degree of aging.

[0004] However, the existing pressure resistance testing device does not have the function of testing the explosion resistance and negative pressure resistance of aluminum flat tubes. Therefore, a pressure resistance testing device for automobile intercooler aluminum flat tubes is proposed to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the pressure resistance detection device in the prior art is not capable of testing the explosion resistance and negative pressure resistance of aluminum flat tubes, and to propose a pressure resistance detection device for automobile intercooler aluminum flat tubes.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A device for testing the compressive strength of aluminum flat tubes for automobile intercoolers includes a test chamber and an aluminum flat tube. A salt spray generator for accelerating aging of the aluminum flat tube is disposed within the test chamber. A chamber cover is disposed on the top of the test chamber. An explosive pressure testing mechanism is disposed on one side of the test chamber. A console is disposed on the other side of the test chamber. A loading assembly is disposed within the console.

[0008] The explosion pressure test mechanism includes a docking tube and a filling assembly, wherein the docking tube is fixedly mounted on a side of the test chamber away from the console;

[0009] The loading assembly includes a base and a top plate, which are fixedly connected to a side of the test chamber away from the console; a rotating platform is fixedly installed in the base, a wheel is fixedly connected to the surface of the rotating platform, a plurality of docking blocks matching the docking tube are arranged in the wheel, and an explosive bolt for generating explosive pressure is detachably connected to the center of the docking block; a loading push cylinder is fixedly connected to the bottom of the top plate, and the output end of the loading push cylinder faces the docking tube; the output end of the loading push cylinder is fixedly connected to a push plate for pushing the docking block and firing the explosive bolt; the top of the top plate is fixedly connected to an independent power supply for supporting the electric firing of the explosive bolt.

[0010] Preferably, the loading assembly includes a turntable with multiple workstations, a rotating mounting seat is connected to the side of the turntable away from the test chamber, a plurality of mounting slots for providing test stations are provided on the side of the turntable close to the test chamber, a sliding rod is fixedly connected in the mounting slot, a storage block is provided in the mounting slot, a positioning slot for fixing the aluminum flat tube is provided on the side of the storage block facing the test chamber, a loading push cylinder is provided on the side of the bottom of the turntable away from the test chamber, and the loading push cylinder is located in the control console.

[0011] Preferably, the shape of the docking tube facing the test chamber matches the aluminum flat tube, and the shape of the docking tube away from the test chamber matches the docking block. A test duct is opened in the docking tube to gather the airflow generated by the explosion of the explosive bolt and guide it into the aluminum flat tube.

[0012] Preferably, a guiding slope is provided on one end of the docking tube facing the test chamber, for guiding the aluminum flat tube into the docking tube and aligning it with the test duct.

[0013] Preferably, the outer wall of the wheel disc is fixedly connected with a plurality of mounting tubes around its center, the number of the mounting tubes matches the number of the mounting slots, a through hole for the push plate to pass through is provided at one end of the mounting tube close to the center of the wheel disc, and a relatively arranged limiting sliding groove is provided on the inner wall of the mounting tube.

[0014] Preferably, a limiting block matching the limiting slot is fixedly connected to the outer wall of the docking block, and a socket is provided at the center of the docking block, and the socket is connected to the explosive bolt.

[0015] Preferably, the size of the explosive bolt is larger than the socket, so that it has an interference fit with the socket, the outer wall of the explosive bolt facing the docking block is fixedly connected to a limiting ring, the center of the explosive bolt facing the docking block is embedded with an electric primer, and the interior of the explosive bolt away from the docking block is fixedly installed with a gunpowder bag.

[0016] Preferably, a contact for striking an electric primer is fixedly installed at the center of the push plate facing the explosive plug, and the contact is electrically connected to an independent power supply. A plurality of neodymium magnets for adsorbing the docking block are embedded around the contact on the push plate facing the explosive plug.

[0017] Preferably, a slider is fixedly connected to one side of the storage block close to the slide rod, both ends of the slider are slidably connected to the slide rod so that it can slide in the installation groove, and a reset spring is fixedly connected to the center of the slider.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The present invention provides an explosion pressure test mechanism. During the test, a contact point is used to ignite an electric primer to detonate a gunpowder pack. The explosion of the gunpowder pack rapidly expands the airflow in the test duct and the aluminum flat tube, thereby generating instantaneous high pressure and vibration to act on the interior of the aluminum flat tube, thereby achieving the function of testing the explosion pressure resistance of the aluminum flat tube. Multiple explosive plugs can be loaded through the loading assembly, and the flexibility of the test process is increased by setting explosive plugs of different equivalents.

[0020] 2. The present invention sets a feeding assembly, and the feeding push cylinder pushes the placement block to make it slide along the slide rod in the installation groove, so that the aluminum flat tube enters the docking tube. After the feeding push cylinder is reset, the elastic force of the reset spring can push the placement block to reset, and then the work station is changed by the turntable. The function of continuous explosion pressure testing is realized by the coordinated use of the placement block and the turntable.

[0021] 3. The present invention uses a burst pressure test mechanism in conjunction with a salt spray generator, controls the aging degree of the aluminum flat tube by setting the working time of the salt spray generator, and then performs testing through the burst pressure test mechanism, thereby testing the compressive performance of the aluminum flat tube at the same aging degree and different aging degrees. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of a compression testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of a compression testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention;

[0024] Figure 3 This is a structural assembly diagram of a compression testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention;

[0025] Figure 4 This is a structural assembly diagram of the explosion pressure test mechanism in the compression resistance testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention;

[0026] Figure 5This is a structural schematic diagram of a wheel in a compression testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention;

[0027] Figure 6 This is a structural schematic diagram of a butt joint in a compression testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention;

[0028] Figure 7 for Figure 6 Enlarged view of point A in the middle;

[0029] Figure 8 This is a structural assembly diagram of a docking block and an explosive bolt in a compression testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention;

[0030] Figure 9 This is a structural schematic diagram of a push plate in a compression testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention;

[0031] Figure 10 This is a schematic diagram of the external structure of a feeding assembly in a compression testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention;

[0032] Figure 11 This is a cross-sectional view of the internal structure of a feeding assembly in a compression testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention;

[0033] Figure 12 This is a structural cross-sectional view of a placement block in a compression testing device for aluminum flat tubes of an automobile intercooler proposed by the present invention.

[0034] In the figure: 1. Test chamber; 2. Aluminum flat tube; 3. Salt spray generator; 4. Chamber cover; 5. Control console; 6. Docking tube; 7. Base; 8. Top plate; 9. Rotating platform; 10. Wheel; 11. Docking block; 12. Explosive bolt; 13. Loading push cylinder; 14. Push plate; 15. Independent power supply; 16. Turntable; 17. Rotating mounting seat; 18. Mounting slot; 19. Slide rod; 20. Storage block; 21. Loading push cylinder; 22. Test duct; 23. Guide slope; 24. Mounting tube; 25. Limit slide; 26. Limit block; 27. Socket; 28. Limit ring; 29. ​​Electric primer; 30. Gunpowder bag; 31. Contact; 32. Neodymium magnet; 33. Slider; 34. Return spring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0036] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0038] Example, see Figures 1 to 12 A compression test device for aluminum flat tubes of automobile intercoolers includes a test chamber 1 and an aluminum flat tube 2. A salt spray generator 3 is provided inside the test chamber 1 for accelerating the aging of the aluminum flat tube 2. A chamber cover 4 is provided on the top of the test chamber 1. An explosion pressure test mechanism is provided on one side of the test chamber 1.

[0039] The explosion pressure test mechanism includes a docking tube 6 and a filling assembly. The docking tube 6 is fixedly installed on the side of the test chamber 1 away from the console 5;

[0040] The loading assembly includes a base 7 and a top plate 8, which are fixedly connected to the side of the test chamber 1 away from the console 5. A rotating platform 9 is fixedly installed in the base 7, and a wheel 10 is fixedly connected to the surface of the rotating platform 9. A plurality of docking blocks 11 matching the docking tube 6 are provided in the wheel 10. The center of the docking block 11 is detachably connected to an explosive bolt 12 for generating explosive pressure. A loading push cylinder 13 is fixedly connected to the bottom of the top plate 8, and the output end of the loading push cylinder 13 faces the docking tube 6. The output end of the loading push cylinder 13 is fixedly connected to a pushing plate 14 for pushing the docking block 11 and firing the explosive bolt 12. The top of the top plate 8 is fixedly connected to an independent power supply 15 for supporting the electric firing of the explosive bolt 12;

[0041] A console 5 is provided on the other side of the test chamber 1. A loading assembly is provided inside the console 5. The loading assembly includes a turntable 16 with multiple workstations. A rotating mounting seat 17 is connected to the side of the turntable 16 away from the test chamber 1. A plurality of mounting slots 18 for providing test stations are provided on the side of the turntable 16 close to the test chamber 1. Slide rods 19 are fixedly connected to the mounting slots 18. A placement block 20 is provided in the mounting slot 18. A positioning slot for fixing the aluminum flat tube 2 is provided on the side of the placement block 20 facing the test chamber 1. A loading push cylinder 21 is provided on the side of the bottom of the turntable 16 away from the test chamber 1. The loading push cylinder 21 is located in the console 5.

[0042] Furthermore, the shape of the side of the docking tube 6 facing the test chamber 1 matches the aluminum flat tube 2, and the shape of the side of the docking tube 6 away from the test chamber 1 matches the docking block 11. A test duct 22 is provided in the docking tube 6 for collecting the airflow generated by the explosion of the explosive plug 12 and guiding it into the aluminum flat tube 2. A guiding slope 23 is provided on the end of the docking tube 6 facing the test chamber 1 for guiding the aluminum flat tube 2 into the docking tube 6 and aligning it with the test duct.

[0043] It should be noted that: when the turntable 16 moves the test station to the bottom, the aluminum flat tube 2 will shake slightly due to inertia during the movement, among which the shaking amplitude of the end of the aluminum flat tube 2 is the largest. By setting the guide slope 23, even if the end of the aluminum flat tube 2 shakes and deviates from the docking tube 6, it can slide into the docking tube 6 along the guide slope 23 during the pushing process and align with the test duct.

[0044] It is worth noting that the through hole of the docking tube 6 facing the test chamber 1 is larger than the size of the aluminum flat tube 2, and the output end of the test duct is smaller than the through hole of the docking tube 6 facing the test chamber 1, so as to prevent the aluminum flat tube 2 from getting stuck in the through hole of the docking tube 6.

[0045] Furthermore, a plurality of mounting tubes 24 are fixedly connected to the outer wall of the wheel disc 10 around its center. The number of mounting tubes 24 matches the number of mounting slots 18. A through hole for the push plate 14 to pass through is provided at one end of the mounting tube 24 near the center of the wheel disc 10. The inner wall of the mounting tube 24 is provided with a corresponding limiting sliding groove 25.

[0046] Furthermore, a limiting block 26 matching the limiting slot 25 is fixedly connected to the outer wall of the docking block 11 , and a socket 27 is provided at the center of the docking block 11 , and the socket 27 is plugged into the explosive bolt 12 .

[0047] Furthermore, the size of the explosive bolt 12 is larger than the socket 27, so that it has an interference fit with the socket 27. A limit ring 28 is fixedly connected to the outer wall of the explosive bolt 12 on the side facing the docking block 11. An electric primer 29 is embedded in the center of the explosive bolt 12 on the side facing the docking block 11. A gunpowder bag 30 is fixedly installed inside the explosive bolt 12 on the side away from the docking block.

[0048] It should be noted that the explosive plug 12 is provided in various specifications. The explosive plugs 12 of different specifications have different amounts of powder in the internal gunpowder bag 30 for controlling the intensity of the explosive pressure.

[0049] A further advantage of adopting the above method is that, through the interference fit between the explosive plug 12 and the socket 27, explosive plugs 12 of different explosive equivalents can be loaded according to test needs to perform various types of tests. When the explosive plug 12 is fired, the staff can directly remove the docking block 11 and replace it with a new explosive plug 12, saving testing costs.

[0050] Furthermore, a contact 31 for striking the electric primer 29 is fixedly mounted on the center of the push plate 14 facing the explosive plug 12, and a plurality of neodymium magnets 32 for attracting the docking block 11 are embedded and mounted around the contact 31 on the push plate 14 facing the explosive plug 12.

[0051] A further advantage of adopting the above method is that when the loading push cylinder 13 is extended, the push plate 14 pushes the docking block 11, making it close to and temporarily sealing the docking tube 6. After completing the firing action, the loading push cylinder 13 absorbs the docking block 11 through the neodymium magnet 32 ​​during the resetting process and pulls it to reset, thereby achieving the functions of firing the explosive bolt 12 and pushing and resetting the docking block 11.

[0052] Furthermore, a slider 33 is fixedly connected to one side of the storage block 20 near the slide rod 19. Both ends of the slider 33 are slidably connected to the slide rod 19 so that it can slide in the mounting groove 18. A return spring 34 is fixedly connected to the center of the slider 33.

[0053] A further advantage of adopting the above method is that the placement block 20 can be pushed by the loading push cylinder 21 to slide along the slide rod 19 in the installation groove 18, so that the aluminum flat tube 2 enters the docking tube 6. After the loading push cylinder 21 is reset, the placement block 20 can be pushed to reset by the elastic force of the reset spring 34, and then the work station is changed by the turntable 16. Through the coordinated use of the placement block 20 and the turntable 16, the function of continuous explosion pressure testing is realized.

[0054] When the present invention is used, the staff installs the appropriate explosive bolt 12 in the socket 27, then aligns the back of the docking block 11 with the limiting slide 25 of the mounting tube 24 through the limiting block 26 and inserts it to the end of the mounting tube 24 to complete the loading of the explosion pressure test mechanism. Then, the staff inserts the aluminum flat tube 2 into the placement block 20 to complete the loading of the feeding mechanism.

[0055] When conducting the explosive pressure test, the loading push cylinder 21 pushes the placement block 20, so that the placement block 20 slides along the slide rod 19 in the installation groove 18 and pushes the aluminum flat tube 2 into the docking tube 6. In this process, even if the end of the aluminum flat tube 2 shakes and deviates from the docking tube 6, it can slide into the docking tube 6 along the guide slope 23 during the pushing process and align with the test duct. Then the loading push cylinder 13 extends and drives the pushing plate 14 to push the docking block 11, so that it is close to and temporarily seals the docking tube 6. Then, the contact 31 is energized through the independent power supply 15, so that the contact 31 triggers the bottom of the explosive bolt 12. The electric primer 29 burns after being fired, and the combustion of the electric primer 29 detonates the gunpowder bag 30. The explosion of the gunpowder bag 30 rapidly expands the air flow in the test duct and the aluminum flat tube 2, thereby generating instantaneous high pressure and vibration to act on the interior of the aluminum flat tube 2, thereby testing the explosion pressure resistance of the aluminum flat tube 2. After the detonation is completed, the loading and pushing cylinder 13 temporarily stands by to wait for the gas inside the aluminum flat tube 2 to cool down. During the cooling process, the volume of the gas inside the aluminum flat tube 2 will shrink, thereby generating negative pressure and acting on the aluminum flat tube 2, thereby testing the negative pressure resistance of the aluminum flat tube 2.

[0056] After cooling is completed, the loading push cylinder 13 performs a reset action, and during the reset process, the neodymium magnet 32 ​​attracts the docking block 11 to pull it back to its original position. When the docking block 11 reaches the end of the mounting tube 24, the loading push cylinder 13 continues to reset to release the adsorption of the neodymium magnet 32 ​​and the docking block 11. Then, the rotating platform 9 drives the wheel 10 to rotate, so that the next mounting tube 24 is aligned with the docking tube 6. This is the working process of the explosion pressure test mechanism, which will not be repeated hereafter.

[0057] This device can perform the following tests by using the salt spray generator 3, the explosion pressure test mechanism and the feeding assembly in combination;

[0058] When testing the conventional compressive performance of multiple aluminum flat tubes 2, the salt spray generator 3 is on standby. After the explosion pressure test mechanism performs one action, the feeding push cylinder 21 is reset. After the feeding push cylinder 21 is reset, the reset spring 34 pushes the placement block 20 to slide along the slide rod 19 and resets by elastic force. Then, the mounting seat 17 is rotated to drive the turntable 16 to rotate so that the next station is aligned with the docking tube 6. A set of actions is completed. When the explosion pressure test mechanism and the feeding mechanism perform six actions, the conventional compressive test of multiple aluminum flat tubes 2 is completed.

[0059] When testing the compressive performance of the aluminum flat tube 2 at the same aging degree, the salt spray generator 3 is turned on. After the aging is completed, the explosion pressure test mechanism and the feeding mechanism are operated six times through the control console 5 to complete the compressive performance test at the same aging degree.

[0060] When testing the compressive performance of the aluminum flat tube 2 at different aging degrees, the salt spray generator 3 is turned on and the explosion pressure test mechanism and the feeding mechanism are started at a fixed time. After waiting for a suitable time, the explosion pressure test mechanism and the feeding mechanism are operated once through the control console 5, thereby testing the compressive performance of the aluminum flat tube 2 at the current aging degree. Similarly, after waiting for a certain time, the explosion pressure test mechanism and the feeding mechanism are used to test the compressive performance of the aluminum flat tube 2 at the next aging degree.

[0061] When testing the explosion pressure durability of the aluminum flat tube 2, the feeding mechanism pushes out the placement block 20 and then stands by. At this time, the explosion pressure testing mechanism continuously performs multiple testing actions to test the explosion pressure durability of the aluminum flat tube 2 through multiple explosions.

[0062] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A compression testing device for an aluminum flat tube of an automobile intercooler, comprising a test chamber (1) and an aluminum flat tube (2), characterized in that: The test chamber (1) is provided with a salt spray generator (3) for accelerating the aging of the aluminum flat tube (2), the top of the test chamber (1) is provided with a chamber cover (4), one side of the test chamber (1) is provided with an explosion pressure test mechanism, the other side of the test chamber (1) is provided with a control console (5), and the interior of the control console (5) is provided with a feeding assembly; The explosion pressure test mechanism comprises a docking sleeve (6) and a filling assembly, wherein the docking sleeve (6) is fixedly mounted on a side of the test chamber (1) away from the console (5); The loading assembly comprises a base (7) and a top plate (8), wherein the base (7) and the top plate (8) are fixedly connected to a side of the test chamber (1) away from the console (5), a rotating platform (9) is fixedly installed in the base (7), a wheel disc (10) is fixedly connected to the surface of the rotating platform (9), a plurality of docking blocks (11) matching the docking cylinder (6) are arranged in the wheel disc (10), a blasting bolt (12) for generating explosive pressure is detachably connected to the center of the docking block (11), a loading push cylinder (13) is fixedly connected to the bottom of the top plate (8), an output end of the loading push cylinder (13) faces the docking cylinder (6), and a pushing plate (14) for pushing the docking block (11) and firing the blasting bolt (12) is fixedly connected to the output end of the loading push cylinder (13), and an independent power supply (15) for supporting the electric firing of the blasting bolt (12) is fixedly connected to the top of the top plate (8).

2. The compression testing device for aluminum flat tubes of an automobile intercooler according to claim 1, characterized in that: The loading assembly includes a turntable (16) provided with a plurality of workstations, a rotating mounting seat (17) is connected to a side of the turntable (16) away from the test chamber (1), a plurality of mounting slots (18) for providing test workstations are provided on a side of the turntable (16) close to the test chamber (1), a sliding rod (19) is fixedly connected in the mounting slot (18), a semi-open placement block (20) is provided in the mounting slot (18), a positioning slot for fixing the aluminum flat tube (2) is provided on a side of the placement block (20) facing the test chamber (1), a loading push cylinder (21) is provided on a side of the bottom of the turntable (16) away from the test chamber (1), and the loading push cylinder (21) is located in the console (5).

3. The compression testing device for aluminum flat tubes of an automobile intercooler according to claim 1, characterized in that: The shape of the docking tube (6) facing the test chamber (1) matches the aluminum flat tube (2), and the shape of the docking tube (6) facing away from the test chamber (1) matches the docking block (11). A test duct (22) is provided in the docking tube (6) for collecting the airflow generated by the explosion of the explosive plug (12) and guiding it into the aluminum flat tube (2).

4. The compression testing device for aluminum flat tubes of an automobile intercooler according to claim 3, characterized in that: The docking tube (6) is provided with a guiding slope (23) at one end facing the test chamber (1) for guiding the aluminum flat tube (2) into the docking tube (6) and aligning it with the test duct.

5. The compression testing device for aluminum flat tubes of an automobile intercooler according to claim 1, characterized in that: The outer wall of the wheel disc (10) is fixedly connected to a plurality of mounting tubes (24) around its center, the number of the mounting tubes (24) matches the number of the mounting slots (18), one end of the mounting tube (24) close to the center of the wheel disc (10) is provided with a through hole for the push plate (14) to pass through, and the inner wall of the mounting tube (24) is provided with a relatively arranged limiting sliding groove (25).

6. The compression testing device for aluminum flat tubes of an automobile intercooler according to claim 1, characterized in that: A limiting block (26) matching the limiting slot (25) is fixedly connected to the outer wall of the docking block (11), and a socket (27) is provided at the center of the docking block (11), and the socket (27) is plugged into the explosive bolt (12).

7. The compression testing device for aluminum flat tubes of an automobile intercooler according to claim 1, characterized in that: The size of the explosive bolt (12) is larger than the socket (27), so that it is interference-fitted with the socket (27). The outer wall of the explosive bolt (12) facing the docking block (11) is fixedly connected to a limiting ring (28). The center of the explosive bolt (12) facing the docking block (11) is embedded with an electric primer (29). The interior of the explosive bolt (12) away from the docking block is fixedly installed with a gunpowder bag (30).

8. The compression testing device for aluminum flat tubes of an automobile intercooler according to claim 1, characterized in that: A contact (31) for striking the electric primer (29) is fixedly installed at the center of the push plate (14) facing the explosive plug (12). The contact (31) is electrically connected to the independent power supply (15) and is used to strike the electric primer (29). A plurality of neodymium magnets (32) for adsorbing the docking block (11) are embedded and installed around the contact (31) on the push plate (14) facing the explosive plug (12).

9. The compression testing device for aluminum flat tubes of an automobile intercooler according to claim 2, characterized in that: A slider (33) is fixedly connected to one side of the storage block (20) close to the slide bar (19), and both ends of the slider (33) are slidably connected to the slide bar (19) so that it can slide in the installation groove (18). A return spring (34) is fixedly connected to the center of the slider (33).

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