Automobile radiator brazing quality detection equipment

Abstract

The invention discloses automobile radiator brazing quality detection equipment, which belongs to the technical field of automobile radiator brazing detection and comprises a detection table, a welding test mechanism is arranged on the detection table and used for simulating the detection environment of an automobile radiator, and an overall detection unit is further arranged on the detection table. The method is used for detecting the welding integrity of the heat dissipation belt and the coverage rate of a brazing surface. According to the invention, the detection table carrying the infrared correlation detector is matched with the detection rod, so that whether the infrared receiving end can normally receive an infrared signal transmitted by the infrared transmitting end when the heat dissipation belt is vertically lifted after brazing can be known, and the infrared signal can be used as a detection standard of the brazing quality of the heat dissipation belt, so that whether the brazing position is not firm in welding or not can be known. According to the method, the situation that the brazing part is broken is avoided, the efficient detection effect is achieved, the rough unqualified welding part of the heat dissipation belt can be known according to the setting part of the infrared receiving end which cannot receive the infrared signal, and the troubleshooting time of quality inspection personnel is shortened.

Description

Technical Field

[0001] The invention relates to the technical field of automobile radiator brazing detection, in particular to automobile radiator brazing quality detection equipment. Background Art

[0002] The car radiator is an important component used to dissipate heat when the car engine is working. It includes a heat sink and a rectangular frame surrounding the heat sink. Fixed seats with connecting holes are provided on both sides of the rectangular frame. In order to improve the heat dissipation capacity, a corrugated heat sink is used at the heat sink to destroy the boundary layer of the air flow on the surface of the heat sink, increase the contact area between the heat sink and the air, and thus improve the heat dissipation capacity.

[0003] The existing automobile radiator brazing is to insert the heat sink into a rectangular frame and then perform the brazing. During the process, a low concentration of flux is sprayed on the surface of the radiator and then the radiator is brazed in a continuous brazing furnace.

[0004] At present, the inspection method for the welding quality of automobile radiators after brazing is mainly through visual observation and tapping by quality inspectors. Although this inspection method can detect un-brazed points, it is impossible to know the welding strength and welding coverage in the tapping area, so the quality of automobile radiators cannot be ensured, and there is a risk of engine damage due to overheating. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the current method of detecting the welding quality of automobile radiators after brazing is mainly through naked eye observation and knocking by quality inspectors. Although such a detection method can detect un-brazed points, it is impossible to know the welding strength and welding coverage in the knocking area, so that the quality of automobile radiators cannot be ensured, and there is a hidden danger of engine damage due to overheating. A kind of automobile radiator brazing quality detection equipment is proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: An automobile radiator brazing quality inspection device comprises a test bench for automobile radiator brazing inspection, the test bench is provided with a welding test mechanism for simulating the inspection environment of the automobile radiator, the test bench is provided with an integral inspection unit for inspecting the welding integrity of the heat dissipation belt and the coverage of the brazing surface, the integral inspection unit is composed of a heat dissipation belt inspection mechanism and a brazing coverage inspection mechanism; The welding test mechanism comprises a driving bracket fixedly mounted on both sides of the detection platform, the driving bracket is provided with a driving gear through a driving shaft sleeve, the driving gear is meshed with a selection bracket, an electric hydraulic cylinder is provided on the side of the selection bracket away from the detection platform, the electric hydraulic cylinder is connected to the selection bracket through a hydraulic connecting rod, and a lifting driving module is provided on the outer side of the driving shaft, a lifting servo motor is provided on the lifting driving module, a transmission screw is fixed on the output shaft of the lifting servo motor, and a lifting seat is drivingly connected to the outer surface of the transmission screw; The heat dissipation belt detection mechanism includes a mounting sleeve arranged on the top of the detection platform, the mounting sleeve is slidably connected to a detection rod through a tension spring, a detection hole is opened on the inner wall of the detection rod, and an infrared radiation detector is arranged on the top of the detection platform; The brazing coverage detection mechanism includes a pressure sensor arranged inside the detection platform.

[0007] Preferably, the lifting seat is rotatably connected to the driving shaft, and the driving shaft is engaged with the driving gear via a driving bar.

[0008] Preferably, the selection bracket is slidably connected to the driving shaft through a shaft slot, a rack meshing with the driving gear is arranged inside the selection bracket, and a gear limiting slot is provided on the selection bracket to limit the distance of the driving gear relative to the detection platform.

[0009] Preferably, the detection rod is provided with a limit card toward the inner side of the detection platform for stably limiting the automobile radiator installed in the detection platform, and the outer surface of the detection rod is provided with a sliding limit strip slidably connected to the installation sleeve.

[0010] Preferably, the infrared radiation detector sends an infrared signal to the infrared receiving end through the infrared transmitting end, and the infrared signal passes through the detection hole. After the detection rod blocks the infrared signal, the infrared receiving end loses the infrared signal.

[0011] Preferably, a heat dissipation support platform is provided in the detection platform, and the pressure sensor is arranged on the top of the heat dissipation support platform and contacts the bottom of the automobile radiator.

[0012] Preferably, a heat sink core detection mechanism is also provided on the detection platform, which is used to detect the brazing strength of the heat sink core under turbulence. A detection box is provided under the detection platform, and the detection box is connected to a detection liquid pipe. The heat sink core detection mechanism includes a brazing firmness detection bracket fixedly installed on the top of the detection platform, and the brazing firmness detection bracket is composed of a plurality of insertion detection arms. A hydraulic detection cavity is provided inside the insertion detection arm, and a insertion detection strip sealed and slidably connected to the insertion detection arm is provided in the hydraulic detection cavity. Two adjacent insertion detection arms are connected through a detection connecting pipe.

[0013] Preferably, a detection sliding plug is slidably connected to the inner wall of the detection connecting tube, and the sliding driving force of the detection sliding plug is provided by the hydraulic pressure difference in two adjacent hydraulic detection chambers.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the detection table equipped with an infrared beam detector and a detection rod, it can be known whether the infrared receiving end can normally receive the infrared signal emitted by the infrared transmitting end when the heat sink is vertically lifted after brazing, which can be used as the detection standard for the brazing quality of the heat sink, so as to know whether there is a loose soldering at the brazing place or a broken soldering part, so as to achieve the effect of efficient detection. In addition, according to the setting position of the infrared receiving end that cannot receive the infrared signal, the approximate position of the heat sink welding failure can be known, thereby shortening the troubleshooting time of quality inspectors.

[0015] 2. By using a test bench equipped with a pressure sensor and a car radiator that has been injected with cooling liquid, the pressure sensor can be used to detect the downward pressure, i.e., gravity, of the car radiator during the vertical lifting of the test bench. Thus, the change in gravity before and after the overall test of the car radiator can be used to directly reflect whether the overall brazing strength meets the requirements, and quickly determine whether there are weak brazing points, i.e., insufficient brazing coverage, thereby speeding up brazing detection.

[0016] 3. By using a test bench equipped with a drive shaft and a selected bracket, the test environment of the automobile radiator can be simulated, the authenticity and accuracy of the automobile radiator test data of the overall test unit and the heat sink test mechanism can be improved, and the test cost can be reduced by simplifying the simulation drive mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an automobile radiator brazing quality inspection device proposed by the present invention; Figure 2 This is a schematic diagram of the internal structure of a testing box in a car radiator brazing quality testing device proposed by the present invention; Figure 3 This is an exploded view of the internal structure of a test box in a car radiator brazing quality test device proposed by the present invention; Figure 4 This is a structural cross-sectional view of a selection bracket, a driving shaft and a driving gear in an automobile radiator brazing quality inspection device proposed by the present invention; Figure 5 This is a schematic cross-sectional view of the internal structure of an insertion detection arm in a car radiator brazing quality detection device proposed by the present invention; Figure 6 The present invention is a schematic longitudinal section diagram of the internal structure of a brazing firmness detection bracket of an automobile radiator brazing quality detection device proposed by the present invention.

[0018] Figure numerals: 1. test table; 11. heat dissipation support table; 12. test box; 13. test liquid pipe; 2. drive bracket; 21. drive shaft; 211. drive bar; 22. drive gear; 3. selection bracket; 31. electric hydraulic cylinder; 311. hydraulic connecting rod; 32. rack; 4. lifting drive module; 41. lifting servo motor; 42. transmission screw; 43. lifting seat; 5. installation sleeve; 51. tension spring; 52. test rod; 521. limit card; 6. infrared beam detector; 7. pressure sensor; 8. brazing test bracket; 81. insertion test arm; 82. insertion test bar; 83. test connecting pipe; 84. test slide. DETAILED DESCRIPTION

[0019] 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.

[0020] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Example, see Figures 1 to 6 A car radiator brazing quality inspection device includes a test bench 1 for car radiator brazing inspection. The test bench 1 is provided with a welding test mechanism for simulating the inspection environment of the car radiator. The test bench 1 is provided with an overall inspection unit for inspecting the welding integrity of the heat dissipation belt and the coverage of the brazing surface. The overall inspection unit consists of a heat dissipation belt inspection mechanism and a brazing coverage inspection mechanism.

[0023] It should be noted that the automobile radiator mentioned in the present invention is a copper or aluminum automobile radiator, which is composed of components such as a heat dissipation belt, a heat dissipation core, a fixing plate and a connecting pipe that are brazed together. This is an existing automobile heat dissipation brazing component technology and will not be repeated in the description of the component brazing method involved in the following automobile radiator brazing detection process.

[0024] like Figures 2 to 4 As shown, the welding test mechanism includes a driving bracket 2 fixedly installed on both sides of the test platform 1, the driving bracket 2 is sleeved with a driving gear 22 through a driving shaft 21, the driving gear 22 is meshed with a selection bracket 3, and the selection bracket 3 is provided with an electric hydraulic cylinder 31 on the side away from the test platform 1, and the electric hydraulic cylinder 31 is connected to the selection bracket 3 through a hydraulic connecting rod 311, and a cross bar is fixed outside the hydraulic connecting rod 311 to simultaneously push the upper and lower ends of the selection bracket 3 to ensure that the selection bracket 3 does not tilt when sliding; A lifting drive module 4 is arranged outside the driving shaft 21, and a lifting servo motor 41 is arranged on the lifting drive module 4. A transmission screw 42 is fixed to the output shaft of the lifting servo motor 41, and a lifting seat 43 is drivingly connected to the outer surface of the transmission screw 42. The lifting seat 43 is rotatably connected to the driving shaft 21, and the driving shaft 21 is clamped with the driving gear 22 through a driving bar 211. It should be noted that: when the test platform 1 needs to be lifted, the lifting servo motor 41 is started to drive the transmission screw 42 to rotate, so that the lifting seat 43 is lifted, thereby driving the driving shaft 21 rotatably connected to the lifting seat 43 to be lifted synchronously; Furthermore, the selection bracket 3 is slidably connected with the driving shaft 21 through the shaft slot, a rack 32 meshing with the driving gear 22 is provided in the selection bracket 3, and a gear limiting slot is provided on the selection bracket 3 to limit the distance of the driving gear 22 relative to the detection platform 1; It should be noted that: when the test platform 1 needs to be flipped and raised, the electric hydraulic cylinder 31 is started, so that the hydraulic connecting rod 311 pushes the selection bracket 3, and the driving gear 22 is clamped on the outer surface of the driving shaft 21, so that when the driving gear 22 is engaged with the rack 32, the driving shaft 21 can be driven to rotate synchronously, and the test platform 1 can be driven to flip, thereby achieving the effect of conveniently simulating the testing environment of the automobile radiator, and improving the authenticity and accuracy of the overall testing unit and the heat sink core testing mechanism for the automobile radiator detection data.

[0025] like Figure 2 and Figure 3 As shown, the heat dissipation belt detection mechanism includes a mounting sleeve 5 arranged on the top of the detection platform 1, the mounting sleeve 5 is slidably connected to a detection rod 52 through a tension spring 51, a detection hole is opened on the inner wall of the detection rod 52, and an infrared radiation detector 6 is arranged on the top of the detection platform 1; Furthermore, the detection rod 52 is provided with a limit card 521 toward the inner side of the detection platform 1, which is used to stably limit the automobile radiator installed in the detection platform 1, and the outer surface of the detection rod 52 is provided with a sliding limit strip slidably connected to the installation sleeve 5; Furthermore, the infrared beam detector 6 sends an infrared signal to the infrared receiving end through the infrared transmitting end, and the infrared signal passes through the detection hole. After the detection rod 52 blocks the infrared signal, the infrared receiving end loses the infrared signal. Furthermore, if Figure 3 As shown, the brazing coverage detection mechanism includes a pressure sensor 7 arranged inside the detection platform 1, a heat dissipation support platform 11 is arranged inside the detection platform 1, and the pressure sensor 7 is arranged on the top of the heat dissipation support platform 11 and touches the bottom of the automobile radiator; It should be noted that: the infrared radiation detector 6 and the pressure sensor 7 are also provided with a wireless communication module, which can send to the control end whether the infrared receiving end normally receives the infrared signal sent by the infrared transmitting end and the indication of the pressure sensor 7, so that when the automobile radiator is simulated tested, its heat dissipation core and heat dissipation belt, as well as the overall brazing strength can be known in real time.

[0026] Based on the above, when testing the welding condition of the heat dissipation belt and the overall brazing strength, it is first necessary to seal the automobile radiator after the heat dissipation liquid is injected through an existing sealing device such as a sealing plug, and the welding condition of the heat dissipation belt and the overall brazing strength testing process are both performed when the testing platform 1 is only raised and lowered, and the testing process is as follows: The detection process of the heat dissipation belt welding condition is as follows: start the lifting servo motor 41 to drive the transmission screw 42 to rotate, so that when the lifting seat 43 is only lifted, it will drive the driving shaft 21 to be lifted synchronously, so that the detection platform 1 is only lifted. At this time, the detection rod 52 is pressed on the surface of the automobile radiator. When the heat dissipation belt brazing quality is qualified, multiple detection rods 52 will be lifted synchronously, so that the infrared receiving end of the infrared beam detector 6 can normally receive the infrared signal emitted by the infrared transmitting end; When the brazing quality of the heat dissipation belt is unqualified, part of the heat dissipation belt will be scattered due to inertia during the lifting process, causing the overall center of gravity of the automobile radiator to shift during the lifting process, resulting in multiple detection rods 52 no longer being lifted synchronously, and uneven conditions, so that the infrared receiving end of the infrared beam detector 6 cannot receive the infrared signal emitted by the infrared transmitting end, so that the infrared receiving end can normally receive the infrared signal emitted by the infrared transmitting end as a detection standard for the brazing quality of the heat dissipation belt, and the firmness of the brazing of the heat dissipation belt can be known. According to the setting position of the infrared receiving end that cannot receive the infrared signal, the approximate position of the heat dissipation belt welding failure can be known, thereby shortening the troubleshooting time of the quality inspectors; Based on the above, the overall brazing strength detection process is as follows: when the automobile radiator is only lifted vertically as a whole, the center of gravity of the automobile radiator will not change due to the cooling liquid filled inside. At this time, the downward pressure of the automobile radiator during the vertical lifting of the test platform 1 is detected by the pressure sensor 7 (when the automobile radiator is in a vertical state, the downward pressure on the pressure sensor 7 is equal to its gravity). When the downward pressure does not change (when the brazing part is not broken, the total amount of cooling liquid in the automobile radiator will not change), it means that the overall brazing strength meets the requirements, so that the change in the downward pressure of the automobile radiator detected by the pressure sensor 7 can be used as the detection standard of the overall brazing strength: like Figure 5 and Figure 6 As shown, a heat dissipation core detection mechanism is also provided on the detection platform 1, which is used to detect the brazing strength of the heat dissipation core under turbulent flow. A detection box 12 is provided below the detection platform 1, and the detection box 12 is connected to a detection liquid pipe 13. The heat dissipation core detection mechanism includes a brazing firmness detection bracket 8 fixedly installed on the top of the detection platform 1, and the brazing firmness detection bracket 8 is composed of a plurality of cutting detection arms 81. A hydraulic detection cavity is provided inside the cutting detection arm 81, and a cutting detection strip 82 is provided in the hydraulic detection cavity, which is sealed and slidably connected to the cutting detection arm 81. Two adjacent cutting detection arms 81 are connected through a detection connecting pipe 83. Furthermore, the inner wall of the detection connecting tube 83 is slidably connected with a detection sliding plug 84, and the sliding driving force of the detection sliding plug 84 is provided by the hydraulic pressure difference in two adjacent hydraulic detection chambers, and the detection connecting tube 83 is made of transparent material; It should be noted that: before the brazing quality inspection of the heat sink core is performed, the heat sink core inspection mechanism is not installed on the inspection platform 1, and the heat sink core and the heat sink belt in the automobile radiator are arranged linearly at intervals. When the airflow resistance inspection of the brazing part of the heat sink core is performed, the inspection liquid can be injected into the inspection box 12, and the electric hydraulic cylinder 31 is started to drive the selection bracket 3 to approach the inspection platform 1, so that the inspection platform 1 can be lifted and lowered in a flipping manner, so that the automobile radiator is in contact with the inspection liquid and flipped in the disturbed fluid, simulating the anti-airflow environment of the automobile radiator set at the front end of the automobile in contact with the airflow. During this period, whether the inspection slide plug 84 between two adjacent brazing firm inspection brackets 8 moves is observed as the inspection standard for the heat sink core brazing; Based on the above, the insertion detection arm 81 is set at the edge area of ​​the automobile heat sink. When the heat sink is affected by turbulence and the brazing connection is disconnected, that is, the heat sink is offset, it can be inserted between the heat sinks under the liquid pressure in the hydraulic detection cavity, and the hydraulic pressure in the corresponding hydraulic detection cavity is weakened, so that the detection slide plug 84 moves toward the side with smaller hydraulic pressure, so that it can be observed whether the detection slide plug 84 moves, and the brazing strength of the heat sink can be intuitively judged, which is convenient for quality inspectors to conduct inspections. By moving the insertion detection arm 81 corresponding to the detection slide plug 84, the unqualified brazing parts of the heat sink can be quickly known, thereby shortening the inspection speed of quality inspectors.

[0027] Working principle: The present invention is divided into three testing processes when testing the brazing quality of the automobile radiator, namely, the welding integrity of the heat dissipation belt, the overall brazing coverage rate and the brazing strength of the heat dissipation core. When testing the automobile radiator, the welding test mechanism can simulate the testing environment of the automobile radiator, and the simulation process is divided into a vertical lifting process and a flip lifting process of the testing platform 1; The vertical lifting simulation process of the test platform 1 is as follows: the lifting servo motor 41 is started to drive the transmission screw 42 to rotate, so that the lifting seat 43 is lifted and lowered, thereby driving the driving shaft 21 connected to the lifting seat 43 to lift and lower synchronously; The flip lifting simulation process of the test bench 1 is as follows: start the electric hydraulic cylinder 31, so that the hydraulic connecting rod 311 pushes the selection bracket 3, and the driving gear 22 is clamped on the outer surface of the driving shaft 21, so that when the driving gear 22 is meshed with the rack 32, the driving shaft 21 is driven to rotate synchronously, and the test bench 1 is driven to flip, thereby achieving the effect of conveniently simulating the testing environment of the automobile radiator, and improving the authenticity and accuracy of the overall testing unit and the heat sink testing mechanism for the automobile radiator test data; The detection process of the integrity of the heat dissipation belt welding is as follows: the detection platform 1 is only raised and lowered, and the detection rod 52 is pressed on the surface of the automobile radiator. When the heat dissipation belt brazing quality is qualified, the multiple detection rods 52 will be raised and lowered synchronously, so that the infrared receiving end of the infrared beam detector 6 can normally receive the infrared signal emitted by the infrared transmitting end; Based on the above, when the brazing quality of the heat dissipation belt is unqualified, part of the heat dissipation belt will be scattered due to inertia during the lifting process, causing the overall center of gravity of the automobile radiator to shift during the lifting process, resulting in multiple detection rods 52 no longer being lifted and lowered synchronously, and uneven conditions appearing, making it impossible for the infrared receiving end of the infrared beam detector 6 to receive the infrared signal emitted by the infrared transmitting end. Therefore, whether the infrared receiving end can normally receive the infrared signal emitted by the infrared transmitting end can be used as a detection standard for the brazing quality of the heat dissipation belt to know the firmness of the brazing of the heat dissipation belt; The detection process of the overall brazing coverage is as follows: when the automobile radiator is only lifted vertically as a whole, the center of gravity of the automobile radiator will not change due to the cooling liquid filled inside. At this time, the downward pressure of the automobile radiator during the vertical lifting of the test platform 1 is detected by the pressure sensor 7 (when the automobile radiator is in a vertical state, the downward pressure on the pressure sensor 7 is equal to its gravity). When the downward pressure does not change (when the brazing part is not broken, the total amount of cooling liquid in the automobile radiator will not change), it means that the overall brazing strength meets the requirements, so that the change in the downward pressure of the automobile radiator detected by the pressure sensor 7 can be used as the detection standard of the overall brazing strength. The detection process of the brazing strength of the heat sink core is as follows: inject the detection liquid into the detection box 12, and start the electric hydraulic cylinder 31 to drive the selection bracket 3 to approach the detection platform 1, so that the detection platform 1 can be flipped up and down, and the automobile radiator is in contact with the detection liquid, and flipped in the disturbed fluid, simulating the anti-airflow environment in which the automobile radiator is set at the front end of the car and in contact with the airflow. When the heat sink core is affected by the turbulent flow and the brazing connection is disconnected, that is, the heat sink core is offset, under the liquid pressure in the hydraulic detection cavity, it is inserted between the heat sink cores, and the hydraulic pressure in the corresponding hydraulic detection cavity is weakened, so that the detection slide plug 84 moves toward the side with smaller hydraulic pressure, so that it can be observed whether the detection slide plug 84 moves, and the brazing strength of the heat sink core can be intuitively judged, which is convenient for quality inspectors to conduct inspections.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A car radiator brazing quality inspection device, comprising a test bench (1) for car radiator brazing inspection, characterized in that: The test bench (1) is provided with a welding test mechanism for simulating the test environment of an automobile radiator. The test bench (1) is provided with an integral test unit for testing the welding integrity of the heat dissipation belt and the coverage of the brazing surface. The integral test unit is composed of a heat dissipation belt test mechanism and a brazing coverage test mechanism. The welding test mechanism comprises a driving bracket (2) fixedly mounted on both sides of the detection platform (1), the driving bracket (2) being sleeved with a driving gear (22) via a driving shaft (21), the driving gear (22) being meshed with a selection bracket (3), an electric hydraulic cylinder (31) being arranged on a side of the selection bracket (3) away from the detection platform (1), the electric hydraulic cylinder (31) being connected to the selection bracket (3) via a hydraulic connecting rod (311), a lifting driving module (4) being arranged outside the driving shaft (21), a lifting servo motor (41) being arranged on the lifting driving module (4), a transmission screw (42) being fixed to an output shaft of the lifting servo motor (41), and a lifting seat (43) being drivingly connected to an outer surface of the transmission screw (42); The heat dissipation belt detection mechanism comprises a mounting sleeve (5) arranged on the top of the detection platform (1), the mounting sleeve (5) being slidably connected to a detection rod (52) via a tension spring (51), a detection hole being provided on the inner wall of the detection rod (52), and an infrared radiation detector (6) being arranged on the top of the detection platform (1); The brazing coverage detection mechanism comprises a pressure sensor (7) arranged inside the detection platform (1).

2. The automobile radiator brazing quality inspection equipment according to claim 1, characterized in that: The lifting seat (43) is rotationally connected to the driving shaft (21), and the driving shaft (21) is clamped with the driving gear (22) via a driving bar (211).

3. The automobile radiator brazing quality inspection equipment according to claim 1, characterized in that: The selection bracket (3) is slidably connected to the driving shaft (21) via a shaft slot; a rack (32) is provided inside the selection bracket (3) and meshes with the driving gear (22); a gear limiting slot is provided on the selection bracket (3) to limit the distance of the driving gear (22) relative to the detection platform (1).

4. The automobile radiator brazing quality inspection equipment according to claim 1, characterized in that: The detection rod (52) is provided with a limit card (521) facing the inner side of the detection platform (1) for stably limiting the position of the automobile radiator installed in the detection platform (1), and the outer surface of the detection rod (52) is provided with a sliding limit strip slidably connected to the installation sleeve (5).

5. The automobile radiator brazing quality inspection equipment according to claim 1, characterized in that: The infrared radiation detector (6) sends an infrared signal to the infrared receiving end through the infrared transmitting end, and the infrared signal passes through the detection hole. After the infrared signal is blocked by the detection rod (52), the infrared receiving end loses the infrared signal.

6. The automobile radiator brazing quality inspection equipment according to claim 1, characterized in that: A heat dissipation support platform (11) is arranged inside the detection platform (1), and the pressure sensor (7) is arranged on the top of the heat dissipation support platform (11) and contacts the bottom of the automobile radiator.

7. The automobile radiator brazing quality inspection equipment according to claim 1, characterized in that: The inspection platform (1) is also provided with a heat dissipation core inspection mechanism for inspecting the brazing strength of the heat dissipation core under turbulent flow. A inspection box (12) is provided below the inspection platform (1), and the inspection box (12) is connected to a detection liquid pipe (13). The heat dissipation core inspection mechanism comprises a brazing firmness inspection bracket (8) fixedly mounted on the top of the inspection platform (1). The brazing firmness inspection bracket (8) is composed of a plurality of cutting inspection arms (81). A hydraulic inspection cavity is provided inside the cutting inspection arm (81). A cutting inspection bar (82) is provided in the hydraulic inspection cavity and is sealed and slidably connected to the cutting inspection arm (81). Two adjacent cutting inspection arms (81) are connected via a detection connecting pipe (83).

8. The automobile radiator brazing quality inspection equipment according to claim 7, characterized in that: The inner wall of the detection connecting tube (83) is slidably connected to a detection sliding plug (84), and the sliding driving force of the detection sliding plug (84) is provided by the hydraulic pressure difference in two adjacent hydraulic detection chambers.

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