Automobile part quality detection tool

Abstract

The invention relates to the technical field of automobile part detection, in particular to an automobile part quality detection tool. Comprising a supporting plate and a plurality of supports fixed to the supporting plate, fixing devices are arranged on the supports on the two sides, hydraulic rods are arranged on the supports on the other two symmetrical sides, the hydraulic rods are used for controlling a shell with the end fixedly connected to ascend and descend, a plurality of ultrasonic detectors are arranged outside the shell, and a pretreatment mechanism is arranged at the bottom end in the shell. The pretreatment mechanism is used for conducting rust removal treatment on the rusted exhaust pipe. The limiting plate is pushed to move through compressed gas, the multiple balls are made to get close to the limiting plate, under the inertia effect, after the impact head collides with the exhaust pipe, the multiple balls move in the direction away from the limiting plate, the balls collide with the interior of the impact head, and therefore repeated knocking on the exhaust pipe is achieved; the impurity falling effect and the crack detection accuracy are improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts detection, in particular to an automobile parts quality detection tool. Background Art

[0002] With the rapid development of modern industry, the sharp increase in vehicles and the discharge of waste, the problem of air pollution has become more and more serious, and the environment on which human beings depend for survival has been seriously polluted. To address this problem, most of the exhaust pipes of cars are currently equipped with exhaust purifiers.

[0003] Moreover, since most exhaust pipes are located at the bottom of the vehicle and in contact with the ground, they are easily affected by road conditions, moisture, chemicals and high temperatures during long-term use, which accelerates the rusting process. Secondly, during the use of the vehicle, the exhaust pipe is often bumped due to road conditions and other reasons, causing the exhaust pipe to become concave or cracked.

[0004] Therefore, when crack detection is performed on the exhaust pipe, in order to prevent rust from affecting the accuracy of ultrasonic detection, the rust on the exhaust pipe is usually polished first, and then the crack detection on the exhaust pipe is performed using an ultrasonic detector. However, when there are dents on the exhaust pipe, metal particles are generated during the polishing process. Under the action of the surface tension of the metal particles or the electrostatic effect, the metal particles are easily attached to the dents, which is not only inconvenient to clean, but also the metal particles attached to the dents will affect the accuracy of the detection, resulting in reduced detection accuracy. Summary of the invention

[0005] The purpose of the present invention is to provide a quality inspection tool for automobile parts to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the purpose of the present invention is to provide an automobile parts quality inspection tool, including a support plate and a plurality of brackets fixed on the support plate, fixing devices are arranged on the brackets on both sides of the symmetrical sides, and hydraulic rods are arranged on the brackets on both sides of the symmetrical sides, and the hydraulic rods are used to control the lifting and lowering of an outer shell with fixed ends connected, a plurality of ultrasonic detectors are arranged outside the outer shell, and a pretreatment mechanism is arranged at the bottom end of the inner shell, and the pretreatment mechanism is used to remove rust from rusty exhaust pipes, and during the rotation of the pretreatment mechanism, air is transported to an adapter box arranged above the pretreatment mechanism, and the adapter box is connected to a piston cylinder, and a hammer mechanism is arranged in the piston cylinder, and the compressed air in the adapter box is used to push the hammer mechanism to knock on the exhaust pipe to make impurities in the pit of the exhaust pipe fall off, and cooperate with the hammer mechanism to drive the rubber liner arranged inside the outer shell to approach the exhaust pipe to reduce the distance between the rubber liner and the exhaust pipe.

[0007] As a further improvement of the present technical solution, the pretreatment mechanism includes a spiral disk and a drive system, wherein the drive system is composed of gears and a drive motor, the drive motor is fixed at the bottom of the outer shell, and the output shaft of the drive motor is coaxially connected to the gear, the gear is meshed with the spiral disk, and a plurality of arc-shaped scrapers are arranged inside the spiral disk.

[0008] As a further improvement of the technical solution, a limit ring is fixedly connected to the upper end of the spiral disk, the limit ring is embedded in the shell, and the limit ring is slidably connected to the shell.

[0009] As a further improvement of the present technical solution, the outer ring of the spiral disk is provided with a plurality of blades, and the blades are opposite to the arc-shaped scrapers provided on the inner side of the spiral disk, and a cavity is formed between the spiral disk and the outer shell, and the blades are located in the cavity, and the cavity is connected to the external air.

[0010] As a further improvement of the technical solution, the top of the cavity is connected to a transfer box through an air pipe, the transfer box is fixedly connected to the piston cylinder, a one-way valve is arranged in the air pipe, and a pressure relief valve is arranged at the end of the piston cylinder.

[0011] As a further improvement of the present technical solution, a tension spring is arranged in the piston cylinder. The tension spring is fixedly connected to the inner wall of the piston cylinder, and the other end is fixedly connected to the piston plate. The piston plate is slidably connected to the piston cylinder. A compression spring is arranged on the opposite side of the tension spring and is fixedly connected to the piston plate. The compression spring is used to push the hammer mechanism to knock on the exhaust pipe.

[0012] As a further improvement of the present technical solution, the hammer mechanism includes an impact head and a plurality of spheres arranged inside the impact head. The end of the impact head is spherical, and a limit plate fixedly connected to the other end is slidably connected to the piston cylinder. The limit plate is fixedly connected to a compression spring, and a circular hole is opened on the rubber inner liner in the horizontal direction of the impact head, and the diameter of the circular hole is the same as that of the impact head.

[0013] As a further improvement of the technical solution, the plurality of spheres are arranged between baffles on both sides inside the impact head, the baffles are fixedly connected to a return spring, and the return spring is fixedly connected to an inner wall of the impact head.

[0014] As a further improvement of the present technical solution, a Y-shaped tube is arranged at the bottom of the piston cylinder away from the adapter box, the Y-shaped tube is connected to the piston cylinder, the other end of the Y-shaped tube is connected to the air inlet hole opened on the rubber inner liner, and the connecting parts at both ends of the Y-shaped tube are fixedly connected to the outer shell, and the exhaust hole opened on the outer shell is connected to the Y-shaped tube.

[0015] As a further improvement of the present technical solution, an extrusion wheel is provided on the Y-shaped tube near the connection between the Y-shaped tube and the piston cylinder, the extrusion wheel is rotatably connected to the Y-shaped tube, and an extrusion protrusion and a convex plate are fixedly connected to the extrusion wheel, the extrusion protrusion and the convex plate are at a right angle, the mass of the extrusion protrusion is greater than that of the convex plate, the extrusion protrusion is located outside the Y-shaped tube, and the convex plate is located inside the Y-shaped tube.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the automobile parts quality inspection tooling, compressed gas is used to push the limit plate to move, so that multiple balls are close to the limit plate. Under the action of inertia, after the impact head collides with the exhaust pipe, multiple balls move away from the limit plate, and the balls impact the inside of the impact head, thereby achieving repeated knocking on the exhaust pipe, improving the effect of impurity shedding and the accuracy of crack detection.

[0017] 2. In the auto parts quality inspection tool, after the impact head passes through the rubber liner, the limit plate and the rubber liner are abutted against each other to drive the rubber liner closer to the exhaust pipe, thereby reducing the distance between the rubber liner and the exhaust pipe, increasing the speed of the airflow and improving the suction effect of the fallen impurities.

[0018] 3. In the automobile parts quality inspection tooling, under the action of the airflow generated by the spiral disk, the airflow attracts the exhaust hole, and the gas is discharged from the exhaust hole through the Y-shaped tube. On the one hand, the released gas suppresses the impurities splashed during the cleaning process of the spiral disk. On the other hand, since the other end of the Y-shaped tube is connected to the air inlet, the gas in the Y-shaped tube cooperates with the airflow generated by the spiral disk to attract the air inlet, thereby removing the impurities attached to the exhaust pipe.

[0019] 4. In the automobile parts quality inspection tool, the extrusion convex block rotates to push the rubber liner on one side outward, and the pushed-out rubber liner moves closer to the exhaust pipe, so that the distance between the two is reduced, that is, the cross-sectional area of ​​the rubber liner is reduced. Therefore, after the cross-sectional area is reduced, the air flow velocity at this position increases, thereby improving the suction effect of impurities and ensuring the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the fixing device and the explosion structure of the shell of the present invention; Figure 3 A top view of the internal structure of the housing of the present invention is cut away; Figure 4 It is a front view of the internal structure of the shell of the present invention; Figure 5It is a schematic diagram of the partial structure of the adapter box, piston cylinder and rubber liner of the present invention; Figure 6 For the present invention Figure 5 A is an enlarged structural diagram; Figure 7 It is a schematic diagram of the air flow direction structure inside the Y-shaped tube of the present invention; Figure 8 For the present invention Figure 7 The enlarged structural diagram at B in FIG.

[0021] The meaning of each number in the figure is: 100. support plate; 101. bracket; 102. ultrasonic detector; 110, hydraulic rod; 120, fixing device; 130, housing; 131, cavity; 150, adapter box; 151, piston cylinder; 152, extension spring; 153, piston plate; 154, compression spring; 160, rubber liner; 161, air inlet; 170, Y-shaped tube; 180, extrusion wheel; 181, extrusion convex block; 182, convex plate; 200. Pretreatment agency; 210, spiral disk; 211, blade; 212, limit ring; 220, gear; 230, drive motor; 300, hammer mechanism; 310, impact head; 311, limit plate; 320, sphere; 330, baffle; 331, return spring. DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 7As shown, a quality inspection tool for automobile parts is provided, including a support plate 100 and a plurality of brackets 101 fixed on the support plate 100, a fixing device 120 is arranged on the brackets 101 on both sides of the symmetry, and a hydraulic rod 110 is arranged on the brackets 101 on both sides of the symmetry, and the hydraulic rod 110 is used to control the lifting and lowering of a shell 130 fixedly connected at the end, a plurality of ultrasonic detectors 102 are arranged outside the shell 130, and a pretreatment mechanism 200 is arranged at the bottom end of the shell 130, and the pretreatment mechanism 200 is used to remove rust from the rusty exhaust pipe, and the pretreatment mechanism 200 conveys air to the pretreatment mechanism during the rotation process. In the adapter box 150 arranged above the mechanism 200, the adapter box 150 is connected to the piston cylinder 151, and the piston cylinder 151 is provided with a hammer mechanism 300. The compressed air in the adapter box 150 drives the hammer mechanism 300 to knock on the exhaust pipe to make impurities in the pit of the exhaust pipe fall off, and cooperates with the hammer mechanism 300 to drive the rubber liner 160 arranged inside the outer shell 130 to approach the exhaust pipe to shorten the distance between the rubber liner 160 and the exhaust pipe, thereby utilizing the suction force generated by the pretreatment mechanism 200 to attract the fallen impurities to limit the impurities from floating outward, thereby improving the detection accuracy of the ultrasonic detector 102.

[0024] It can be seen that when pre-treating the exhaust pipe, the vertical part of the exhaust pipe needs to be passed through the bracket 101, the shell 130 and the pre-treatment mechanism 200 in sequence. Secondly, the exhaust pipe is fixed by the fixing device 120 on the bracket 101 to prevent shaking during the rust removal process. Then, under the control of the hydraulic rod 110, the pre-treatment mechanism 200 first removes rust from the exhaust pipe, and the process is carried out from top to bottom. Therefore, each time the pre-treatment mechanism 200 processes a section of the exhaust pipe, the hydraulic rod 110 pushes the shell 130 downward to move a corresponding distance, and cooperates with multiple ultrasonic detectors 102 to detect the exhaust pipe that has been processed until the entire exhaust pipe is detected.

[0025] In order to more easily understand the structure of the fixing device 120, Figure 2 As shown, the structure of the fixing device 120 is disclosed below: the fixing device 120 includes a clamping end, a lead screw and a knob, wherein the clamping end is rotatably connected to the end of the lead screw, the other end of the lead screw is coaxially connected to the knob, and the auxiliary block threadedly connected to the lead screw is fixedly connected to the bracket 101. Specifically, when in use, the lead screw is driven to rotate by rotating the knob, so that the clamping end approaches the exhaust pipe until the clamping ends on both sides firmly clamp the exhaust pipe and stop rotating. This process is a prior art and can be understood by those skilled in the art, so it will not be described in detail here.

[0026] Furthermore, based on the above structure, Figure 3 and Figure 4As shown, the structure of the pre-treatment mechanism 200 is further disclosed, and the pre-treatment mechanism 200 includes a spiral disk 210 and a drive system, wherein the drive system is composed of a gear 220 and a drive motor 230, the drive motor 230 is fixed to the bottom of the housing 130, and the output shaft of the drive motor 230 is coaxially connected to the gear 220, the gear 220 is meshed with the spiral disk 210, and a plurality of arc-shaped scrapers are arranged inside the spiral disk 210. In this way, after the exhaust pipe is fixed, the gear 220 is driven to rotate by starting the drive motor 230, and the gear 220 drives the spiral disk 210 to rotate. At this time, the plurality of arc-shaped scrapers inside the spiral disk 210 are used to clean the impurities attached to the exhaust pipe to prevent the impurities from affecting the accuracy of the exhaust pipe crack detection.

[0027] Considering that the spiral disk 210 will slide downward under the action of gravity when the spiral disk 210 stops rotating, a limit ring 212 is fixedly connected to the upper end of the spiral disk 210, the limit ring 212 is embedded in the outer shell 130, and the limit ring 212 is slidably connected to the outer shell 130. In this way, when the spiral disk 210 rotates, the limit ring 212 limits the downward movement of the spiral disk 210 to maintain the stable operation of the spiral disk 210.

[0028] Secondly, in Figure 4 Based on and combined with Figure 5 As shown, the outer ring of the spiral disk 210 is provided with a plurality of blades 211, and the blades 211 are opposite to the arc scraper blades provided inside the spiral disk 210, and a cavity 131 is formed between the spiral disk 210 and the housing 130, and the blades 211 are located in the cavity 131, and the cavity 131 is connected to the outside air. Therefore, in order to prevent the airflow generated by the rotation of the arc scraper blade from moving upward when the arc scraper blade cleans the impurities on the exhaust pipe, the blades 211 and the arc scraper blade are arranged oppositely, that is, when the arc scraper blade rotates, the airflow generated is from top to bottom, and vice versa, the airflow generated by the rotation of the blades 211 is from bottom to top. Then, when rust removal is performed, the airflow generated by the rotation of the arc scraper blade can be used to prevent the impurities from splashing outward during the cleaning process, which has an inhibitory effect on the impurities.

[0029] In addition, the airflow generated by the rotation of the arc-shaped scraper has the following effect: when there are pits on the exhaust pipe, the impurities after cleaning are easily accumulated in the pits, which will cause the impurities covered in the pits to affect the accuracy of crack detection. Therefore, the airflow is used to flow from top to bottom to make the impurities that are not firmly attached to the pits fall off and be discharged to the outside through the spiral disk 210 with the airflow. At this time, combined with Figure 2 As shown, in order to prevent the air carrying impurities from being directly discharged to the outside and causing pollution to the surrounding environment, a bellows is provided at the bottom of the housing 130, and the bellows passes through the conical bucket above (refer to Figure 3As shown, the conical bucket is connected to the bellows, and the conical bucket is fixed at the bottom of the housing 130) to guide the discharged impurities, and the impurities are discharged into an external filtering device (which is the prior art and will not be described here) through the bellows, so that the air is discharged after being purified.

[0030] Return to Figure 4 and Figure 5 As shown, on the other hand, the top of the cavity 131 is connected to the adapter box 150 through an air pipe, the adapter box 150 is fixedly connected to the piston cylinder 151, a one-way valve is provided in the air pipe, and a pressure relief valve is provided at the end of the piston cylinder 151. The gas is transported to the adapter box 150 through the air pipe for storage, that is, the pressure relief valve is closed at this time, and the one-way valve is opened (the gas can only flow from the air pipe into the adapter box 150), and the gas pressure in the adapter box 150 gradually increases. After the gas breaks through the pressure relief valve, the gas is ejected from the adapter box 150 to the piston cylinder 151. After the gas is ejected from the adapter box 150, the pressure relief valve is closed. At this time, the adapter box 150 is in the gas storage stage, so as to form intermittent injection.

[0031] In addition, a tension spring 152 is provided in the piston cylinder 151. The tension spring 152 is fixedly connected to the inner wall of the piston cylinder 151, and the other end is fixedly connected to the piston plate 153. The piston plate 153 is slidably connected to the piston cylinder 151. A compression spring 154 is provided on the opposite side of the tension spring 152 and is fixedly connected to the piston plate 153. The compression spring 154 is used to push the hammer mechanism 300 to knock on the exhaust pipe. In this way, the gas in the adapter box 150 pushes the piston plate 153 to move toward the exhaust pipe. In this process, as the displacement of the piston plate 153 increases, the tension spring 152 is gradually stretched. At the same time, the hammer mechanism 300 is pushed outward by the compression spring 154 to knock on the exhaust pipe. Among them, the state of the rubber liner 160 is determined by Figure 5 Transformed into Figure 7 status.

[0032] To this end, based on the above structure, the following Figure 6The hammer mechanism 300 is shown, and the specific structure thereof is disclosed. The hammer mechanism 300 includes an impact head 310 and a plurality of balls 320 disposed inside the impact head 310. The end of the impact head 310 is spherical, and a limit plate 311 fixedly connected at the other end is slidably connected to the piston cylinder 151. The limit plate 311 is fixedly connected to the compression spring 154. In this way, under the push of gas, the compression spring 154 pushes the limit plate 311 to move, and when the impact head 310 collides with the exhaust pipe, at this time, impurities fall off the exhaust pipe. Under normal circumstances, the multiple balls 320 are located inside the impact head 310. When the compression spring 154 instantly pushes the limit plate 311 to move, the multiple balls 320 approach the limit plate 311. Under the action of inertia, after the impact head 310 collides with the exhaust pipe, the multiple balls 320 move away from the limit plate 311 (that is, the balls 320 move toward the exhaust pipe), and the balls 320 collide with the inside of the impact head 310, thereby achieving repeated knocking on the exhaust pipe, thereby improving the effect of impurity removal and the accuracy of crack detection.

[0033] In addition, in order to increase the frequency of knocking the exhaust pipe, a plurality of balls 320 are arranged between the baffles 330 on both sides inside the impact head 310, and the baffles 330 are fixedly connected to the return springs 331, and the return springs 331 are fixedly connected to the inner wall of the impact head 310. When the compression spring 154 first pushes the limit plate 311, the plurality of balls 320 squeeze the right baffle 330, and the return spring 331 on the right is compressed. After the impact head 310 collides with the exhaust pipe, under the inertia and the elastic action of the right return spring 331, the right baffle 330 pushes the balls 320 to pop out in the direction of the exhaust pipe. In this process, the balls 320 hit the left baffle 330, so that the left return spring 331 is compressed, until the left return spring 331 moves to the maximum displacement, the left baffle 330 hits the inner wall of the impact head 310 through the left return spring 331, thereby knocking the exhaust pipe again, reducing the attachment of impurities on the exhaust pipe, and improving the accuracy of the detection result.

[0034] Next, the left baffle 330 uses the elastic potential energy of the left return spring 331 to push the ball 320 in the opposite direction, and repeats the above process until the ball 320 stops moving. In this way, the ball 320 moves back and forth multiple times, so that the impact head 310 knocks on the exhaust pipe to reduce the adhesion of impurities.

[0035] exist Figure 6 Based on and combined with Figure 7As shown, the reason why the impact head 310 can smoothly pass through the rubber liner 160 is that: a circular hole is opened on the rubber liner 160 in the horizontal direction of the impact head 310, and the diameter of the circular hole is the same as that of the impact head 310. In this way, after the impact head 310 passes through the rubber liner 160, the limit plate 311 and the rubber liner 160 are abutted to drive the rubber liner 160 to approach the exhaust pipe, thereby reducing the distance between the rubber liner 160 and the exhaust pipe, increasing the speed of the air flow, and improving the suction effect of the fallen impurities. The state of the rubber liner 160 in this process is as follows: Figure 7 shown.

[0036] When the impact head 310 contacts the exhaust pipe, part of the limit plate 311 is still located in the piston cylinder 151 , so that the limit plate 311 can be smoothly retracted when the limit plate 311 is recovered later.

[0037] In addition, in order to better suck out the impurities after cleaning, Figure 7 As shown, a Y-shaped tube 170 is provided at the bottom of the piston cylinder 151 away from the adapter box 150. The Y-shaped tube 170 is connected to the piston cylinder 151, and the other end of the Y-shaped tube 170 is connected to the air inlet 161 provided on the rubber liner 160. The connecting points at both ends of the Y-shaped tube 170 are fixedly connected to the housing 130, and the exhaust holes provided on the housing 130 are connected to the Y-shaped tube 170. In this way, when the piston plate 153 is pushed to the position at Figure 7 When the piston plate 153 is at the connection between the Y-shaped tube 170 and the piston cylinder 151, Figure 4 As shown, under the action of the airflow generated by the spiral disk 210, the airflow attracts the exhaust hole, and the gas is discharged from the exhaust hole through the Y-shaped tube 170. On the one hand, the released gas suppresses the impurities splashed during the cleaning process of the spiral disk 210. On the other hand, since the other end of the Y-shaped tube 170 is connected to the air inlet 161, the gas in the Y-shaped tube 170 cooperates with the airflow generated by the spiral disk 210 to attract the air inlet 161, thereby removing the impurities attached to the exhaust pipe.

[0038] It should be noted that: the right baffle 330 is Figure 6 For example, the right baffle 330 is the baffle 330 close to the limit plate 311, and the left baffle 330 is the left baffle 330, referred to as the left and right sides. Figure 7 As shown, when the piston plate 153 has not yet moved to the connection between the Y-shaped tube 170 and the piston cylinder 151, the impact head 310 has already contacted the exhaust pipe, and the gas is still in a spraying state at this time, thereby pushing the piston plate 153 to squeeze the compression spring 154, and the piston plate 153 gradually moves toward the exhaust pipe, thereby preventing the impact head 310 from moving in the opposite direction (i.e., moving away from the exhaust pipe).

[0039] Further, in Figure 7 Based on and combined with Figure 8 As shown, an extrusion wheel 180 is provided on the Y-shaped tube 170 near the connection between the Y-shaped tube 170 and the piston cylinder 151. The extrusion wheel 180 is rotatably connected to the Y-shaped tube 170, and an extrusion protrusion 181 and a protrusion plate 182 are fixedly connected to the extrusion wheel 180. The extrusion protrusion 181 and the protrusion plate 182 are at a right angle. The mass of the extrusion protrusion 181 is greater than that of the protrusion plate 182. The extrusion protrusion 181 is located outside the Y-shaped tube 170, and the protrusion plate 182 is located inside the Y-shaped tube 170. In this way, when the gas is ejected from the Y-shaped tube 170 instantly, the gas will push the protrusion plate 182 to rotate clockwise. At the same time, the extrusion protrusion 181 rotates to push the rubber liner 160 on the side outward, and the pushed-out rubber liner 160 approaches the exhaust pipe. The purpose is to bring the rubber liner 160 closer to the exhaust pipe so that the distance between the two is reduced, that is, the cross-sectional area of ​​the rubber liner 160 is reduced. Therefore, after the cross-sectional area is reduced, the air flow velocity at this position is increased, thereby improving the suction effect of impurities.

[0040] It should be noted that: in a normal state, the extrusion protrusion 181 is close to the outer wall of the Y-shaped tube 170, the extrusion protrusion 181 is in a vertical state, and the protrusion plate 182 is in a horizontal state.

[0041] Finally, after the gas is ejected from the Y-shaped tube 170, since the mass of the extrusion protrusion 181 is greater than that of the protrusion plate 182, the extrusion protrusion 181 is released from the extrusion of the rubber liner 160 and returns to the initial state. Moreover, under the elastic action of the tension spring 152, the piston plate 153 is pulled in the reverse direction to return to the original position so as to perform the knocking work again. Figure 2 As shown, the ultrasonic detector 102 detects the exhaust pipe after treatment, and the cycle continues.

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A quality inspection tool for automobile parts, comprising a support plate (100) and a plurality of brackets (101) fixed on the support plate (100), wherein fixing devices (120) are arranged on the brackets (101) on two symmetrical sides, and characterized in that: In addition, hydraulic rods (110) are provided on the brackets (101) on both sides symmetrically, and the hydraulic rods (110) are used to control the lifting and lowering of a housing (130) fixedly connected at the ends. A plurality of ultrasonic detectors (102) are provided outside the housing (130), and a pretreatment mechanism (200) is provided at the bottom end of the housing (130). The pretreatment mechanism (200) is used to remove rust from the rusted exhaust pipe, and the pretreatment mechanism (200) delivers air to a position above the pretreatment mechanism (200) during its rotation. In the adapter box (150) disposed in the housing, the adapter box (150) is connected to a piston cylinder (151), and a hammer mechanism (300) is disposed in the piston cylinder (151). The compressed air in the adapter box (150) drives the hammer mechanism (300) to strike the exhaust pipe, so that impurities in the recess of the exhaust pipe fall off, and cooperates with the hammer mechanism (300) to drive a rubber liner (160) disposed inside the housing (130) to move closer to the exhaust pipe, so as to reduce the distance between the rubber liner (160) and the exhaust pipe.

2. The automobile parts quality inspection tool according to claim 1 is characterized in that: The pretreatment mechanism (200) comprises a spiral disk (210) and a drive system, wherein the drive system is composed of a gear (220) and a drive motor (230), the drive motor (230) is fixed to the bottom of the housing (130), and the output shaft of the drive motor (230) is coaxially connected to the gear (220), the gear (220) is meshed with the spiral disk (210), and a plurality of arc-shaped scrapers are arranged inside the spiral disk (210).

3. The automobile parts quality inspection tool according to claim 2 is characterized in that: A limit ring (212) is fixedly connected to the upper end of the spiral disk (210), the limit ring (212) is embedded in the outer shell (130), and the limit ring (212) is slidably connected to the outer shell (130).

4. The automobile parts quality inspection tool according to claim 2 is characterized in that: The outer ring of the spiral disk (210) is provided with a plurality of blades (211), the blades (211) being opposite to the arc-shaped scrapers provided on the inner side of the spiral disk (210), a cavity (131) being formed between the spiral disk (210) and the outer shell (130), the blades (211) being located in the cavity (131), and the cavity (131) being connected to external air.

5. The automobile parts quality inspection tool according to claim 4 is characterized in that: The upper part of the cavity (131) is connected to the adapter box (150) via an air pipe, the adapter box (150) is fixedly connected to the piston cylinder (151), a one-way valve is provided in the air pipe, and a pressure relief valve is provided at the end of the piston cylinder (151).

6. The automobile parts quality inspection tool according to claim 5 is characterized in that: A tension spring (152) is arranged in the piston cylinder (151); the tension spring (152) is fixedly connected to the inner wall of the piston cylinder (151); the other end of the tension spring (152) is fixedly connected to a piston plate (153); the piston plate (153) is slidably connected to the piston cylinder (151); a compression spring (154) is arranged on the opposite side of the tension spring (152) and is fixedly connected to the piston plate (153); the compression spring (154) is used to push the hammer mechanism (300) to knock the exhaust pipe.

7. The automobile parts quality inspection tool according to claim 6 is characterized in that: The hammer mechanism (300) comprises an impact head (310) and a plurality of spheres (320) arranged inside the impact head (310); the end of the impact head (310) is spherical; a limit plate (311) fixedly connected to the other end is slidably connected to a piston cylinder (151); the limit plate (311) is fixedly connected to a compression spring (154); a circular hole is provided on a rubber liner (160) in a horizontal direction of the impact head (310); the diameter of the circular hole is the same as that of the impact head (310).

8. The automobile parts quality inspection tool according to claim 7 is characterized in that: The plurality of spheres (320) are arranged between baffles (330) on both sides inside the impact head (310); the baffles (330) are fixedly connected to a return spring (331); and the return spring (331) is fixedly connected to the inner wall of the impact head (310).

9. The automobile parts quality inspection tool according to claim 6, characterized in that: A Y-shaped tube (170) is provided at the bottom of the piston cylinder (151) away from the adapter box (150); the Y-shaped tube (170) is connected to the piston cylinder (151); the other end of the Y-shaped tube (170) is connected to an air inlet (161) provided on the rubber liner (160); and the connecting points at both ends of the Y-shaped tube (170) are fixedly connected to the outer shell (130); and the exhaust hole provided on the outer shell (130) is connected to the Y-shaped tube (170).

10. The automobile parts quality inspection tool according to claim 9, characterized in that: An extrusion wheel (180) is provided on the Y-shaped tube (170) near the connection between the Y-shaped tube (170) and the piston cylinder (151); the extrusion wheel (180) is rotatably connected to the Y-shaped tube (170); an extrusion protrusion (181) and a convex plate (182) are fixedly connected to the extrusion wheel (180); a right angle is formed between the extrusion protrusion (181) and the convex plate (182); the mass of the extrusion protrusion (181) is greater than that of the convex plate (182); the extrusion protrusion (181) is located outside the Y-shaped tube (170), and the convex plate (182) is located inside the Y-shaped tube (170).

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