A full-automatic leak detection machine based on automobile axle housing reinforcing ring weld joint detection

Abstract

A kind of full-automatic leak detector based on automobile axle housing reinforcing ring weld detection, comprising: bottom plate, axle housing conveying device 1, mechanical grabbing device 2, gas supply device 5 and control cabinet 7, further comprising: both ends clamping sealing device 3, reinforcing ring part sealing detection device 4 and detection device 6, axle housing conveying device 1, mechanical grabbing device 2, clamping sealing device 3, control cabinet 7 and reinforcing ring part sealing detection device 4 are fixedly installed on bottom plate;Mechanical grabbing device 2 is used to grab axle housing from axle housing conveying device 1 to both ends clamping sealing device 3, reinforcing ring part sealing detection device 4 includes reinforcing ring sealing device 41, reinforcing ring sealing device 41 is located above both ends clamping sealing device 3, detection device 6 is slidably connected on reinforcing ring part sealing detection device 4;Gas supply device 5 provides gas source for the whole device;Control cabinet 7 is used to control the whole device.

Description

Technical Field

[0001] This invention relates to the field of automotive axle housing manufacturing, and in particular to a fully automatic leak detection machine based on the inspection of weld seams of automotive axle housing reinforcing rings. Background Technology

[0002] The axle housing is a critical component of a car, subjected to complex stresses. It not only bears the weight of the vehicle and transmits force, but also withstands bending moments and torques generated by dynamic and static loads. Therefore, the axle housing requires sufficient strength, rigidity, and toughness, and must be able to withstand fatigue stress over long periods. Oil leakage in the axle housing can lead to poor or even no lubrication of the main reducer and differential, accelerating wear and causing premature damage, jeopardizing driving safety. The main causes of axle housing oil leakage are defects such as porosity, cracks, and lack of fusion between the reinforcing ring and the weld. Existing inspection machines mostly use methods such as injecting colored or tracking gases into the axle housing and observing whether the gas overflows from the weld to determine the presence of porosity, or applying soapy water to the weld and observing whether bubbles form after gas injection to determine the presence of porosity. However, these methods are largely manual, inefficient, and pollute the environment.

[0003] Therefore, this invention proposes a fully automatic leak detection machine based on the inspection of weld seams of automotive axle housing reinforcing rings. This machine is used to inspect the weld seams after the axle housing and reinforcing rings are welded together, to detect defects such as porosity, cracks, and incomplete fusion. It can also mark the locations of leaks. Summary of the Invention

[0004] The technical solution used in this invention is: a fully automatic side leakage machine based on the inspection of weld seams of automotive axle housing reinforcing rings, comprising: a base plate, an axle housing conveying device, a mechanical gripping device, an air source device, and a control cabinet; further comprising: a two-end clamping and sealing device, a reinforcing ring sealing detection device, and a detection device; the axle housing conveying device, the mechanical gripping device, the clamping and sealing device, the control cabinet, and the reinforcing ring sealing detection device are all fixedly mounted on the base plate; the mechanical gripping device is used to grip the axle housing from the axle housing conveying device to the two-end clamping and sealing device; the reinforcing ring sealing detection device includes a reinforcing ring sealing device, which is located above the two-end clamping and sealing device; the detection device is slidably connected to the reinforcing ring sealing detection device; the air source device provides air supply to the entire device; the control cabinet is used to control the entire device.

[0005] Furthermore, the bridge housing conveying device includes: a conveying mechanism, on which a sensor is fixedly installed; a push-alignment device is provided on each side of the conveying mechanism, the push-alignment device including: a push-alignment mounting frame, the push-alignment device mounting frame being fixedly installed on the base plate; at least two push-alignment cylinders are fixedly installed on the push-alignment device mounting frame, and a push plate is fixedly installed at the output end of each push-alignment cylinder, facing the conveying mechanism.

[0006] Furthermore, the mechanical gripping device includes: a robotic arm, which is fixedly mounted on the base plate, and a sliding frame is fixedly mounted on the movable end of the robotic arm; a gripper moving motor is fixedly mounted on the sliding frame, and a gear is fixedly mounted on the output shaft of the gripper moving motor; two racks and two gripper connecting blocks are slidably connected inside the sliding frame, and each gripper connecting block is fixedly connected to one end of the corresponding rack; the gear meshes with the two racks; and a gripper is fixedly connected to each gripper connecting block.

[0007] Furthermore, the sealing device at both ends includes: a bridge housing mounting frame, wherein a sealing device and a rotating support device are fixedly installed at both ends of the bridge housing mounting frame, and the sealing device is slidably connected to the rotating support device.

[0008] Furthermore, the sealing device includes: a synchronously driven servo cylinder and a sealing disc, wherein at least two synchronously driven servo cylinders are provided; the sealing disc is slidably connected to the rotary support device; each synchronously driven servo cylinder is fixedly connected to the bridge housing mounting frame, and its output end is fixedly connected to the sealing disc.

[0009] Furthermore, the sealing disc is provided with a high-pressure air nozzle, which is connected to the air source device.

[0010] Furthermore, the rotating support device includes: a mounting cylinder and a first clamping push cylinder. One end of the mounting cylinder is fixedly mounted on the axle housing placement frame, and the other end is slidably connected to a rotary motor mounting frame. The first clamping push cylinder is fixedly mounted on the axle housing placement frame, and its output end is fixedly connected to the rotary motor mounting frame. An axle housing clamping device is rotatably connected to the rotary motor mounting frame. At least one of the rotary support devices has a rotary motor fixedly mounted in its rotary motor mounting frame, and the output shaft of the rotary motor is fixedly connected to the axle housing clamping device.

[0011] Further, the bridge housing clamping device includes: a clamping device mounting body, which is rotatably connected to the rotary motor mounting bracket and fixedly connected to the corresponding rotary motor output shaft; a second clamping push cylinder is fixedly installed inside the clamping device mounting body; a push plate is fixedly connected to the output end of the second clamping push cylinder; at least two rotating plates are rotatably connected inside the clamping device mounting body; the clamping device mounting body has clearances equal in number to the rotating plates; one end of each rotating plate is elastically connected to the inside of the clamping device mounting body through a corresponding spring, and the other end extends out of the clamping device mounting body through the clearance; the push plate is movably connected to each of the rotating plates.

[0012] Furthermore, the reinforcing ring sealing detection device also includes: a reinforcing ring sealing moving device and a buffer component. The reinforcing ring sealing moving device includes: a mounting frame with a clearance, a moving block slidably connected to the mounting frame, a hydraulic cylinder fixedly mounted on the moving block, a horizontal plate fixedly connected to the output end of the hydraulic cylinder, a pull rod fixedly connected to the horizontal plate, the lower end of the pull rod passing through the clearance and fixedly connected to the buffer component, and slidably connected to the moving block; at least one moving block pushing cylinder is mounted on each side of the mounting frame, and the output end of each moving block pushing cylinder is fixedly connected to the moving block.

[0013] Furthermore, the buffer component includes: a connecting plate, which is fixedly connected to the pull rod; a sleeve is fixedly connected to the lower end of the connecting plate, and a connecting rod is slidably connected inside the sleeve; the lower end of the connecting rod is fixedly connected to the reinforcing ring sealing device.

[0014] Further, the reinforcing ring sealing device includes: a reinforcing ring pressure plate, which is fixedly connected to the buffer; a compression cylinder is fixedly installed on the upper end of the reinforcing ring pressure plate, and a compression cylinder connecting plate is fixedly connected to the output end of the compression cylinder, and at least two compression cylinder connecting rods are fixedly connected to the compression cylinder connecting plate; an internal support shell is slidably connected to the lower part of the reinforcing ring pressure plate through an elastic element, and a movable block is slidably connected inside the internal support shell, and at least two sets of downwardly inclined grooves are provided on the movable block, which are evenly distributed, and a clamping plate is slidably and rotatably installed on one end of each set of downwardly inclined grooves; the other end of the clamping plate passes through the internal support shell and is slidably and non-rotatably connected to it; the lower end of each compression cylinder connecting rod is fixedly connected to the movable block, and a connection port is provided on the reinforcing ring pressure plate for connecting to the air source device (5); a sensor is fixedly installed on the lower end of the reinforcing ring pressure plate.

[0015] Furthermore, a high-pressure air nozzle is fixedly installed on the reinforcing ring pressure plate, and the high-pressure air nozzle is connected to the air source device.

[0016] Furthermore, the elastic element includes: a pressure plate connecting rod and a support shell connecting cylinder. The pressure plate connecting rod is fixedly connected below the reinforcing ring pressure plate; the support shell connecting cylinder is fixedly connected above the inner support shell; the pressure plate connecting rod is slidably connected inside the support shell connecting cylinder, and the pressure plate connecting rod is elastically connected to the support shell connecting cylinder through an elastic element spring.

[0017] Furthermore, the reinforcing ring pressure plate is provided with a slide rail, and the detection device includes: a slider; the slider is slidably connected to the slide rail, a pulley motor is fixedly installed on the slider, the slider is provided with a clearance, a pulley is fixedly connected to the output shaft of the pulley motor, and the pulley is tightly connected to the slide rail through the clearance; a detection mounting frame is fixedly connected to the slider, and a wind speed sensor and two dye nozzles are fixedly installed on the detection mounting frame, with the wind speed sensor located between the two dye nozzles.

[0018] Because the present invention adopts the above-described technical solution, the present invention has the following advantages:

[0019] (1) The present invention achieves full automation, requires no manual operation, and improves efficiency, greatly increasing production capacity.

[0020] (2) The present invention can rotate the bridge shell placed on it by means of a tightening and sealing device. No matter how the bridge shell is placed on the tightening and sealing device, the bridge shell can be rotated by the tightening and sealing device so that the reinforcing ring is on top. The two ends of the bridge shell are sealed by the sealing disc, and the dust at both ends of the bridge shell is blown away by the high-pressure air nozzle on the sealing disc, so that the sealing disc can achieve a better sealing effect.

[0021] (3) The present invention uses a detection device to detect the weld between the bridge housing and the reinforcing ring to detect whether it leaks. If it leaks, the fuel nozzle sprays fuel to mark it, indicating that the weld between the marks is not complete and needs to be repaired.

[0022] (4) The present invention uses a reinforcing ring sealing moving device, which allows the reinforcing ring sealing device to move up and down without interfering with the installation and unloading of the bridge housing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point C.

[0025] Figure 3 This is a schematic diagram of the overall structure of the present invention from another angle.

[0026] Figure 4This is a schematic diagram of the overall structure of the bridge shell conveying device of the present invention.

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of the structure at point A in the middle.

[0028] Figure 6 This is a schematic diagram of the overall structure of the correction device of the present invention.

[0029] Figure 7 This is a schematic diagram of the overall structure of the mechanical gripping device of the present invention.

[0030] Figure 8 This is a schematic diagram of the internal structure of the mechanical gripping device of the present invention.

[0031] Figure 9 This is a schematic diagram of the overall structure of the clamping and sealing device at both ends of the present invention.

[0032] Figure 10 This is another schematic diagram of the overall structure of the clamping device at both ends of the present invention.

[0033] Figure 11 This is a schematic diagram of the sealing device of the present invention.

[0034] Figure 12 This is a cross-sectional schematic diagram of the rotating support mechanism of the present invention.

[0035] Figure 13 This is a schematic diagram of the overall structure of the bridge housing clamping device of the present invention.

[0036] Figure 14 This is a schematic diagram of the overall structure of the enhanced ring sealing detection device of the present invention.

[0037] Figure 15 This is a schematic diagram showing the positional relationship of the buffer components of the present invention.

[0038] Figure 16 This is a schematic diagram of the reinforcing ring sealing moving device of the present invention.

[0039] Figure 17 This is a cross-sectional schematic diagram of the buffer component of the present invention.

[0040] Figure 18 This is a schematic diagram of the overall structure of the reinforcing ring sealing device of the present invention.

[0041] Figure 19 This is a cross-sectional schematic diagram of the reinforcing ring sealing device of the present invention.

[0042] Figure 20 For the present invention Figure 19 Enlarged schematic diagram of the structure at point B.

[0043] Figure 21 For the present invention Figure 19Schematic diagram of the structure at point D.

[0044] Figure 22 This is a schematic diagram showing the connection relationship between the card plate and the internal support shell of the present invention.

[0045] Figure 23 This is a schematic diagram showing the connection relationship between the movable block and the card plate of the present invention.

[0046] Figure 24 This is a schematic diagram of the overall structure of the detection device of the present invention.

[0047] Figure 25 This is a schematic diagram of the overall structure of the detection device of the present invention from another angle.

[0048] Reference numerals: 1-Axle housing conveying device; 2-Mechanical gripping device; 3-Two-end clamping and sealing device; 4-Reinforcing ring sealing detection device; 5-Air source device; 6-Detection device; 7-Control cabinet; 8-Sensor; 11-Conveying mechanism; 12-Sensor; 13-Push-up device; 131-Push-up device mounting bracket; 132-Push-up cylinder; 21-Mechanical arm; 22-Sliding frame; 23-Gripper; 24-Moving motor; 25-Gear; 26-Rack; 27-Connecting block; 31-Axle housing placement bracket; 32-Rotating support mechanism; 33-Sealing device; 331-Sealing disc; 332-Synchronous push servo cylinder; 321-Mounting cylinder; 322-First clamping push cylinder; 323-Rotating motor mounting bracket; 324-Rotating motor; 325-Axle housing clamping device; 3251-Second clamping push cylinder; 32 52-Push plate; 3253-Rotating plate; 3252-Spring; 41-Reinforcing ring sealing device; 42-Reinforcing ring sealing moving device; 43-Buffer; 421-Mounting bracket; 422-Moving block; 423-Moving block pushing cylinder; 424-Hydraulic cylinder; 425-Horizontal plate; 426-Pull rod; 431-Connecting plate; 432-Sleeve; 433-Connecting rod; 411-Reinforcing ring pressure plate; 412-Extrusion cylinder; 413-Extrusion cylinder connecting rod; 414-Extrusion cylinder connecting plate; 415-Elastic element; 416-Internal support shell; 417-Moving block; 418-Clamping plate; 4151-Pressure plate connecting rod; 4152-Elastic element spring; 4153-Support shell connecting cylinder; 61-Slider; 62-Pulley motor; 63-Pulley; 64-Mounting bracket; 65-Wind speed sensor; 66-Dye nozzle. Detailed Implementation

[0049] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0050] In the description of this invention, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed when in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0051] Examples, such as Figure 1-3 As shown, a fully automatic side leakage detection machine based on automotive axle housing reinforcing ring weld seam includes: a base plate, an axle housing conveying device 1, a mechanical gripping device 2, an air source device 5, and a control cabinet 7. It also includes: a two-end tightening and sealing device 3, a reinforcing ring sealing detection device 4, and a detection device 6. The axle housing conveying device 1, mechanical gripping device 2, tightening and sealing device 3, control cabinet 7, and reinforcing ring sealing detection device 4 are all fixedly mounted on the base plate. The mechanical gripping device 2 is used to grip the axle housing from the axle housing conveying device 1 to the two-end tightening and sealing device 3. The reinforcing ring sealing detection device 4 includes a reinforcing ring sealing device 41, which is located at both ends for tight sealing. Above position 3, the detection device 6 is slidably connected to the reinforcing ring sealing detection device 4; the air source device 5 provides air to the entire device; the control cabinet 7 is used to control the entire device; during operation, the bridge housing is conveyed by the bridge housing conveying device 1, and the mechanical gripping device 2 grabs the bridge housing from the bridge housing conveying device 1 into the two-end clamping sealing device 3, which adjusts and clamps the bridge housing and blocks the openings at both ends of the bridge housing; then the reinforcing ring sealing detection device 4 seals the reinforcing ring of the bridge housing, the air source device 5 inflates the inside of the bridge housing, and the detection device 6 detects whether there is air leakage at the weld; all of the above processes are controlled by the control cabinet 7.

[0052] Specifically, such as Figure 4-6 As shown, the bridge housing conveying device 1 includes: a conveying mechanism 11, on which a sensor 12 is fixedly installed; a pushing device 13 is provided on each side of the conveying mechanism 11, and the pushing device 13 includes: a pushing mounting frame 131, which is fixedly installed on the base plate; two pushing cylinders 132 are fixedly installed on the pushing mounting frame 131, and a push plate is fixedly installed at the output end of each pushing cylinder 132, facing the conveying mechanism 11; when the sensor 12 senses the bridge housing, the conveying mechanism 11 stops working, and then the pushing cylinder 132 starts to push the bridge housing to be parallel to the sliding frame 22, so that the gripper 23 can grasp the bridge housing.

[0053] Specifically, such as Figure 7-8As shown, the mechanical gripping device 2 includes: a mechanical arm 21, which is fixedly mounted on a base plate, and a sliding frame 22 is fixedly mounted on the movable end of the mechanical arm 21; a gripper moving motor 24 is fixedly mounted on the sliding frame 22, and a gear 25 is fixedly mounted on the output shaft of the gripper moving motor 24; two racks 26 and two gripper connecting blocks 27 are slidably connected inside the sliding frame 22, and each gripper connecting block 27 is fixedly connected to one end of the corresponding rack 26; the gear 25 meshes with the two racks 26; a gripper 23 is fixedly connected to each gripper connecting block 27; the gripper 23 grips the bridge shell, and through the operation of the gripper moving motor 24, the gripper 23 slides on the sliding frame 22 to adapt to bridge shells of different lengths.

[0054] Specifically, such as Figure 9-10 As shown, the sealing device 3 with tightening at both ends includes: a bridge housing placement frame 31, with a sealing device 33 and a rotating support device 32 fixedly installed at both ends of the bridge housing placement frame 31, and the sealing device 33 and the rotating support device 32 being slidably connected; the bridge housing placement frame 31 is used to place the bridge housing, the rotating support device 32 is used to rotate the bridge housing, and the sealing device 33 is used to seal both ends of the bridge housing; the bridge housing placement frame 31 is provided with pulleys to facilitate the rotation of the bridge housing.

[0055] Specifically, such as Figure 11 As shown, the sealing device 33 includes: a synchronous push servo cylinder 332 and a sealing disc 331. There are three synchronous push servo cylinders 332. The sealing disc 331 is slidably connected to the rotating support device 32. Each synchronous push servo cylinder 332 is fixedly connected to the bridge housing placement frame 31, and its output end is fixedly connected to the sealing disc 331. The synchronous push servo cylinder 332 pushes the sealing disc 331 so that the sealing disc 331 presses against both ends of the bridge housing to seal both ends of the bridge housing.

[0056] Specifically, such as Figure 11 As shown, the sealing disc 331 is equipped with a high-pressure air nozzle, which is connected to the air source device 5. Before the sealing disc 331 seals both ends of the bridge housing, the high-pressure air nozzle sprays gas to clean both ends of the bridge housing and blow away dust, so that the sealing disc 331 can better seal both ends of the bridge housing.

[0057] Specifically, such as Figure 12As shown, the rotating support device 32 includes: a mounting cylinder 321 and a first clamping push cylinder 322. One end of the mounting cylinder 321 is fixedly mounted on the axle housing placement frame 31, and the other end is slidably connected to a rotating motor mounting frame 323. The first clamping push cylinder 322 is fixedly mounted on the axle housing placement frame 31, and its output end is fixedly connected to the rotating motor mounting frame 323. An axle housing clamping device 325 is rotatably connected to the rotating motor mounting frame 323. A rotating motor 324 is fixedly mounted inside the rotating motor mounting frame 323 in one of the rotating support devices 32, and the output shaft of the rotating motor 324 is fixedly connected to the axle housing clamping device 325. The first clamping push cylinder 322 is an electric cylinder. The first clamping push cylinder 322 pushes the rotating motor mounting frame 323, causing the axle housing clamping device 325 to enter the axle housing. After the axle housing clamping device 325 clamps the axle housing, the rotating motor 324 starts and rotates the axle housing so that its reinforcing ring faces upward.

[0058] Specifically, such as Figure 13 As shown, the bridge housing clamping device 325 includes: a clamping device mounting body, which is rotatably connected to the rotary motor mounting bracket 323 and fixedly connected to the output shaft of the corresponding rotary motor 324; a second clamping push cylinder 3251 is fixedly installed inside the clamping device mounting body; a push plate 3252 is fixedly connected to the output end of the second clamping push cylinder 3251; four rotating plates 3253 are rotatably connected inside the clamping device mounting body, and the clamping device mounting body has clearances equal in number to the number of rotating plates 3253, each... One end of the rotating plate 3253 is elastically connected to the inside of the clamping device mounting body via a corresponding spring 3254, and the other end extends through the clamping device mounting body through the clearance. The push plate 3252 is movably connected to each rotating plate 3253. The second clamping push cylinder 3251 is a cylinder. When the second clamping push cylinder 3251 is activated, the rotating plate 3253 extends through the clearance on the clamping device mounting body via the push plate 3252, clamping the bridge housing from inside the bridge housing, so that the bridge housing can rotate when rotating.

[0059] Specifically, such as Figure 14-16As shown, the reinforcing ring sealing detection device 4 also includes: a reinforcing ring sealing moving device 42 and a buffer 43. The reinforcing ring sealing moving device 42 includes: a mounting frame 421 with a clearance; a moving block 422 is slidably connected to the mounting frame 421; a hydraulic cylinder 424 is fixedly mounted on the moving block 422; a horizontal plate 425 is fixedly connected to the output end of the hydraulic cylinder 424; a pull rod 426 is fixedly connected to the horizontal plate 425; the lower end of the pull rod 426 passes through the clearance and is fixedly connected to the buffer 43, and is slidably connected to the moving block 422; a moving block pushing cylinder 423 is installed on each side of the mounting frame 421, and the output end of each moving block pushing cylinder 423 is fixedly connected to the moving block 422; the operation of the hydraulic cylinder 424 allows the reinforcing ring sealing device 41 to move up and down; the moving block pushing cylinders 423 on both sides allow the reinforcing ring sealing device 41 to move left and right, aligning with the axle housing reinforcing ring.

[0060] Specifically, such as Figure 17 As shown, the buffer includes: a connecting plate 431, which is fixedly connected to the pull rod 426; a sleeve 432 is fixedly connected to the lower end of the connecting plate 431, and a connecting rod 433 is slidably connected inside the sleeve 432; the lower end of the connecting rod 433 is fixedly connected to the reinforcing ring sealing device 41; since the reinforcing ring pressure plate 411 will move downward when the reinforcing ring sealing device 41 clamps the axle housing, the buffer provides a displacement distance for the reinforcing ring pressure plate 411, so as to avoid the reinforcing ring pressure plate 411 being unable to press the reinforcing ring due to the presence of the hydraulic cylinder 424.

[0061] Specifically, such as Figure 18-19As shown in Figures 21-23, the reinforcing ring sealing device 41 includes: a reinforcing ring pressure plate 411, which is fixedly connected to the buffer member 43; a compression cylinder 412 is fixedly installed on the upper end of the reinforcing ring pressure plate 411, and a compression cylinder connecting plate 414 is fixedly connected to the output end of the compression cylinder 412; at least two compression cylinder connecting rods 413 are fixedly connected to the compression cylinder connecting plate 414; an internal support shell 416 is slidably connected to the lower part of the reinforcing ring pressure plate 411 via an elastic member 415; a movable block 417 is slidably connected inside the internal support shell 416; the movable block 417 has four sets of downwardly inclined grooves, which are evenly distributed; one end of a clamping plate 418 is slidably and rotatably installed on each set of downwardly inclined grooves; the other end of the clamping plate 418 passes through the internal support shell 416 and is slidably and non-rotatably connected to it; each compression cylinder connecting rod 413... The lower ends of 13 are all fixedly connected to the movable block 417; the reinforcing ring pressure plate 411 is provided with a connection port for connecting to the air source device 5; a sensor 8 is fixedly installed at the lower end of the reinforcing ring pressure plate 411; when the sensor 8 senses that the reinforcing ring pressure plate 411 is in contact with the reinforcing ring, the extrusion cylinder 412 is activated, and the movable block 417 moves upward through the extrusion cylinder connecting rod 413. The downward inclined sliding groove provided on the movable block 417 causes the clamping plate 418 to move. At the same time, since the clamping plate 418 slides with the internal support shell 416 and does not rotate, the clamping plate 418 can only move horizontally. As the extrusion cylinder 412 moves upward continuously, the clamping plate 418 abuts against the inner wall of the bridge shell. Since the extrusion cylinder 412 is fixedly installed on the reinforcing ring pressure plate 411, the reinforcing ring pressure plate 411 will press down on the reinforcing ring to seal the bridge shell reinforcing ring.

[0062] Specifically, such as Figure 18 As shown, a high-pressure air nozzle is fixedly installed on the reinforcing ring pressure plate 411, and the high-pressure air nozzle is connected to the air source device 5. Before the reinforcing ring pressure plate 411 presses the bridge housing reinforcing ring, the high-pressure air nozzle cleans the bridge housing reinforcing ring and blows away the dust on it, so that the reinforcing ring pressure plate 411 achieves a better sealing effect.

[0063] Specifically, such as Figure 20 As shown, the elastic element includes: a pressure plate connecting rod 4151 and a support shell connecting cylinder 4153. The pressure plate connecting rod 4151 is fixedly connected below the reinforcing ring pressure plate 411; the support shell connecting cylinder 4153 is fixedly connected above the inner support shell 416; the pressure plate connecting rod 4151 is slidably connected inside the support shell connecting cylinder 4153, and the pressure plate connecting rod 4151 is elastically connected to the support shell connecting cylinder 4153 through an elastic element spring 4152; the deformation force of the elastic element spring 4152 is greater than the frictional force between the clamping plate 418 and the movable block 417, ensuring that when the bridge housing reinforcing ring is clamped, the clamping plate 418 extends first.

[0064] Specifically, such as Figure 18 and 24As shown in Figure -25, a slide rail is provided on the reinforcing ring pressure plate 411. The detection device 6 includes: a slider 61; the slider 61 is slidably connected to the slide rail, a pulley motor 62 is fixedly installed on the slider 61, the slider 61 is provided with a clearance, and a pulley 63 is fixedly connected to the output shaft of the pulley motor 62. The pulley 63 is tightly connected to the slide rail through the clearance; a detection mounting frame 64 is fixedly connected to the slider 61, and a wind speed sensor 65 and two dye nozzles 66 are fixedly installed on the detection mounting frame 64. The wind speed sensor 65 is located between the two dye nozzles 66; the detection device 6 can move on the reinforcing ring pressure plate 411 by rotating the pulley 63 driven by the pulley motor 62. When the wind speed sensor 65 detects airflow at the weld, the dye nozzles 66 spray dye to mark it.

[0065] Working principle: The bridge housing is placed on the conveying mechanism 11, which conveys the bridge housing. When the sensor 12 detects the bridge housing, the conveying mechanism 11 stops moving, and the straightening device 13 is activated. The straightening cylinders 132 on both sides of the straightening device 13 straighten the bridge housing, making it parallel to the sliding frame 22. Then, the gripper moving motor 24 is activated to adjust the distance between the two grippers 23 to fit the bridge housing. The mechanical gripping device 2 then grabs the bridge housing from the conveying mechanism 11 onto the bridge housing placement frame 31. Finally, the clamping push cylinder 322 is activated to clamp the bridge housing. 325 is pushed into the axle housing, and the clamping cylinder 3251 is activated to push out the rotating plate 3253, causing the rotating plate 3253 to clamp the axle housing from inside. Then, the axle housing is rotated by the rotary motor 324, so that the axle housing reinforcing ring faces upward. Then, the synchronous servo cylinder 332 is activated, causing the sealing disc 331 to press against both ends of the axle housing, sealing both ends of the axle housing. Before the sealing disc 331 seals both ends of the axle housing, the high-pressure air nozzle on the sealing disc 331 blows away the dust at both ends of the axle housing, so that the sealing disc 331 achieves a better sealing effect. When the end clamping sealing device is activated... 3. After the operation is completed, the reinforcing ring sealing moving device 42 is activated. The hydraulic cylinder 424 and the moving block push the cylinder 423 to make the reinforcing ring sealing device 41 fall onto the axle housing reinforcing ring. The buffer assembly 43 can provide displacement distance for the reinforcing ring pressure plate 411 to prevent the reinforcing ring pressure plate 411 from failing to press the axle housing reinforcing ring due to the presence of the hydraulic cylinder 424. When the sensor on the reinforcing ring pressure plate 411 senses that the reinforcing ring pressure plate 411 is in contact with the reinforcing ring, the squeezing cylinder 412 is activated to make the moving block 417 slide within the internal support shell 416, thus displacing the clamping plate 418. The card plate 418 presses against the inside of the axle housing. Then, as the compression cylinder 412 continues to work, it is compressed by the elastic element 415. The reinforcing ring pressure plate 411 presses the reinforcing ring to seal it. Then, the air source device 5 is activated to inject gas into the axle housing through the connection port on the reinforcing ring pressure plate 411. The detection device 6 slides on the slide rail set on the reinforcing ring pressure plate 411 and detects whether there is air leakage at the weld through the wind speed sensor 65. If the wind speed sensor 65 detects air leakage, the two dye nozzles 66 spray dye to mark it, indicating that there is an air hole between the two marks.

Claims

1. A full-automatic leak detection machine based on automobile axle housing reinforcement ring weld detection, comprising: The bottom plate, the axle housing conveying device (1), the mechanical grabbing device (2), the air source device (5) and the control cabinet (7) are characterized in that further comprising: two-end pressing sealing device (3), reinforcing ring part sealing detection device (4) and detection device (6), the axle housing conveying device (1), the mechanical grabbing device (2), the pressing sealing device (3), the control cabinet (7) and the reinforcing ring part sealing detection device (4) are all fixedly installed on the bottom plate; the mechanical grabbing device (2) is used for grabbing the axle housing from the axle housing conveying device (1) to the two-end pressing sealing device (3), the reinforcing ring part sealing detection device (4) comprises a reinforcing ring sealing device (41) and a buffer (43), the reinforcing ring sealing device (41) is located above the two-end pressing sealing device (3), and the detection device (6) is slidably connected to the reinforcing ring part sealing detection device (4); the reinforcing ring sealing device (41) comprises a reinforcing ring pressing plate (411), and the reinforcing ring pressing plate (411) is fixedly connected with the buffer (43); the reinforcing ring pressing plate (411) is provided with a sliding rail, the detection device (6) comprises a sliding block (61), the sliding block (61) is slidably connected to the sliding rail, a pulley motor (62) is fixedly installed on the sliding block (61), the sliding block (61) is provided with a void, a pulley (63) is fixedly connected to an output shaft of the pulley motor (62), and the pulley (63) is tightly connected with the sliding rail through the void; the sliding block (61) is fixedly connected with a detection mounting bracket (64), the detection mounting bracket (64) is fixedly installed with a wind speed sensor (65) and two dye nozzles (66), and the wind speed sensor (65) is located between the two dye nozzles (66); the air source device (5) provides air source for the whole device, and the control cabinet (7) is used for controlling the whole device.

2. The full-automatic leak detection machine based on the automobile axle housing reinforcing ring weld seam detection according to claim 1, characterized in that, the axle housing conveying device (1) comprises a conveying mechanism (11), and the conveying mechanism (11) is fixedly installed with an inductor (12); one pushing device (13) is arranged on each side of the conveying mechanism (11), and the pushing device (13) comprises a pushing device mounting bracket (131), the pushing device mounting bracket (131) is fixedly installed on the bottom plate; at least two pushing cylinders (132) are fixedly installed on the pushing device mounting bracket (131), and the output end of each pushing cylinder (132) is fixedly installed with a pushing plate and faces the conveying mechanism (11).

3. The full-automatic leak detection machine based on the automobile axle housing reinforcing ring weld seam detection according to claim 1, characterized in that, The mechanical grabbing device (2) comprises a mechanical arm (21) fixedly installed on the bottom plate, a sliding frame (22) fixedly installed at the movable end of the mechanical arm (21), a gripper moving motor (24) fixedly installed on the sliding frame (22), a gear (25) fixedly installed on the output shaft of the gripper moving motor (24), two racks (26) and two gripper connecting blocks (27) slidably connected inside the sliding frame (22), each gripper connecting block (27) being fixedly connected with one end of the corresponding rack (26), the gear (25) being in mesh with the two racks (26), and each gripper connecting block (27) being fixedly connected with a gripper (23).

4. The full-automatic leak detection machine based on the automobile axle housing reinforcing ring weld seam detection according to claim 1, characterized in that, The two-end clamping and sealing device (3) comprises a bridge housing placing frame (31), a sealing device (33) and a rotary support device (32) fixedly installed at both ends of the bridge housing placing frame (31), and the sealing device (33) and the rotary support device (32) being slidably connected.

5. The full-automatic leak detection machine based on the automobile axle housing reinforcing ring weld seam detection according to claim 4, characterized in that, The sealing device (33) comprises a synchronous pushing servo cylinder (332) and a sealing disc (331), the synchronous pushing servo cylinder (332) being provided at least in two, the sealing disc (331) being slidably connected to the rotary support device (32), each synchronous pushing servo cylinder (332) being fixedly connected to the bridge housing placing frame (31) and having an output end fixedly connected to the sealing disc (331).

6. The full-automatic leak detection machine based on the automobile axle housing reinforcing ring weld seam detection according to claim 4, characterized in that, The rotary support device (32) comprises a mounting cylinder (321) and a first clamping pushing cylinder (322), one end of the mounting cylinder (321) being fixedly installed on the bridge housing placing frame (31), the other end being slidably connected with a rotary motor mounting frame (323), the first clamping pushing cylinder (322) being fixedly installed on the bridge housing placing frame (31) and having an output end fixedly connected to the rotary motor mounting frame (323), the rotary motor mounting frame (323) being rotatably connected with a bridge housing clamping device (325), and at least one rotary motor mounting frame (323) in the rotary support device (32) being fixedly installed with a rotary motor (324), the rotary motor (324) having an output shaft fixedly connected to the bridge housing clamping device (325).

7. The full-automatic leak detection machine based on the automobile axle housing reinforcing ring weld seam detection according to claim 6, characterized in that, The axle housing fastening device (325) comprises a fastening device mounting body, which is rotationally connected to the rotary motor mounting rack (323) and fixedly connected with the output shaft of the corresponding rotary motor (324); a second fastening pushing cylinder (3251) is fixedly installed inside the fastening device mounting body; a push plate (3252) is fixedly connected to the output end of the second fastening pushing cylinder (3251); at least two rotating plates (3253) are rotationally connected inside the fastening device mounting body; the fastening device mounting body is provided with as many clearances as the number of rotating plates (3253); one end of each rotating plate (3253) is elastically connected to the fastening device mounting body through a corresponding spring (3254), and the other end of each rotating plate (3253) extends out of the fastening device mounting body through the clearance; and the push plate (3252) is movably connected with each rotating plate (3253).

8. The full-automatic leak detection machine based on the automobile axle housing reinforcing ring weld seam detection according to claim 1, characterized in that, The reinforcing ring sealing detection device (4) further comprises a reinforcing ring sealing moving device (42), wherein the reinforcing ring sealing moving device (42) comprises a mounting rack (421), the mounting rack (421) is provided with a clearance, a moving block (422) is slidably connected to the mounting rack (421), a hydraulic cylinder (424) is fixedly installed on the moving block (422), a horizontal plate (425) is fixedly connected to the output end of the hydraulic cylinder (424), a pull rod (426) is fixedly connected to the horizontal plate (425), the lower end of the pull rod (426) penetrates through the clearance and is fixedly connected with the buffer (43), and the pull rod (426) is slidably connected with the moving block (422); at least one moving block pushing cylinder (423) is installed on each side of the mounting rack (421), and the output end of each moving block pushing cylinder (423) is fixedly connected with the moving block (422).

9. The full-automatic leak detection machine based on the automobile axle housing reinforcing ring weld seam detection according to claim 1, characterized in that, The reinforcing ring pressing plate (411) is fixedly installed with an extrusion cylinder (412) at the upper end, the output end of the extrusion cylinder (412) is fixedly connected with an extrusion cylinder connecting plate (414), and at least two extrusion cylinder connecting rods (413) are fixedly connected to the extrusion cylinder connecting plate (414); an internal support shell (416) is slidably connected to the reinforcing ring pressing plate (411) through an elastic element (415), the internal support shell (416) is slidably connected with a movable block (417) inside, at least two groups of downward inclined sliding grooves are arranged on the movable block (417), and the sliding grooves are evenly distributed, one end of a clamping plate (418) is slidably and rotationally installed on each group of sliding grooves; the other end of the clamping plate (418) penetrates through the internal support shell (416) and is slidably and rotationally connected therewith; the lower end of each extrusion cylinder connecting rod (413) is fixedly connected with the movable block (417); the reinforcing ring pressing plate (411) is provided with a connecting port for connecting with an air supply device (5); and a sensor (8) is fixedly installed at the lower end of the reinforcing ring pressing plate (411).

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