An automobile axle detection device and detection method

Abstract

The present invention relates to the field of automobile axle detection, and particularly to an automobile axle detection device and a detection method. It includes a stretching component, a detection plate, an adjusting component, and a detection component. The stretching component is located on the detection table and is set to be fixed in the middle and telescopic at both ends; three groups of detection plates are provided, one group is located on the fixed part of the stretching component, and the two groups are respectively located on the telescopic parts of the stretching component; the adjusting component is arranged on the detection plate; the detection component is arranged on the adjusting component and moves along the X and Y directions on the detection plate by adjusting the position of the adjusting component. The detection component includes a detection outer sleeve connected to the adjusting component and a detection inner sleeve coaxially rotating inside the detection outer sleeve; the inside of the detection inner sleeve is for the automobile axle to pass through, and a detection end is provided, and rotating parts with grinding and clamping functions are provided at both ends of the detection inner sleeve. The present invention conducts flexible multi-point detection on the automobile axle, with diverse detection methods, a large detection range, high efficiency, small error, and is beneficial to ensuring the quality of the automobile chassis.

Description

Technical Field

[0001] The present invention relates to the field of automobile axle detection, and particularly to an automobile axle detection device and a detection method. Background Art

[0002] The automobile chassis is the support frame of the vehicle, mainly including a drive system, a suspension system, a steering system, a braking system, and a frame / body structure. The automobile axle is one of the core components of the chassis drive system and the suspension system, and its main functions include transmitting power, supporting weight, and connecting wheels, etc. Automobile axles are usually divided into two categories: drive shafts and wheel axles. Automobile axles are subjected to large torsion, bending, tension, compression, and wear during operation. In order to ensure that the axle will not break due to insufficient strength or defects during operation and cause accidents, it is necessary to detect the anti-deformation and anti-fracture capabilities of the automobile axle when it bears torque, bending, and tension during the production process of the automobile chassis.

[0003] The Chinese patent document with the authorization announcement number CN111474321B discloses an automobile axle detection device and a detection method, including symmetric L-shaped brackets. One end of the horizontal plate of each L-shaped bracket is respectively fixedly connected to one end of a symmetric support plate. The upper sides of the other ends of each pair of support plates are respectively fixedly connected to the ends of the two vertical rods of a U-shaped bracket. The upper sides of the symmetric U-shaped brackets are respectively fixedly connected to a first circular ring plate. The lower ends of the inner walls of the symmetric first circular ring plates are respectively fixedly connected to one end of a cross bar. The other ends of the symmetric cross bars are respectively fixedly connected to the lower parts on both sides of a fixed ring.

[0004] The above automobile axle detection device and detection method have the following deficiencies: directly detecting the automobile axle by a detector cannot simulate the stress conditions of the automobile axle. Therefore, the types of automobile axle performance that can be detected are limited, the automobile axle performance data that can be obtained is single, and it is even more impossible to directly detect the performance changes of the automobile axle under torsion, bending, tension, compression, and wear during operation. Summary of the Invention

[0005] Aiming at the problems existing in the background art, an automobile axle detection device and a detection method are proposed. By flexibly detecting multiple points of the automobile axle, the detection method is diverse, the detection range is large, the efficiency is high, the error is small, which is beneficial to ensuring the quality of the automobile chassis.

[0006] The present invention provides an automobile axle detection device, which includes a stretching component, a detection plate, an adjustment component and a detection component. The stretching component is located on the detection table and is set to be fixed in the middle and telescopic at both ends; three groups of detection plates are provided, one group is located on the fixed part of the stretching component, and the two groups are respectively located on the telescopic parts of the stretching component; the adjustment components are arranged on the detection plates in one-to-one correspondence; the detection components are arranged on the adjustment components in one-to-one correspondence and move along the X and Y directions on the detection plate by adjusting the positions of the adjustment components; the detection component includes a detection outer sleeve connected to the adjustment component and a detection inner sleeve coaxially rotating inside the detection outer sleeve; the inside of the detection inner sleeve is for the automobile axle to pass through, and a detection end is provided, and rotating members with grinding and clamping functions are provided at both ends of the detection inner sleeve.

[0007] Preferably, the stretching component includes a double-headed telescopic driving member; the double-headed telescopic driving members are arranged in parallel on both sides of the detection table; a first slider is provided on the telescopic end of each group of double-headed telescopic driving members; the first slider is connected to the detection plate.

[0008] Preferably, the adjustment component includes an adjustment frame slidably arranged on the detection plate in the X direction and a second slider slidably arranged on the adjustment frame in the Y direction; the detection outer sleeve is connected to the second slider; a pulling and strengthening member for horizontally moving the second slider is provided on the adjustment frame.

[0009] Preferably, the detection inner sleeve includes a sleeve body rotatably connected to the detection outer sleeve; a driving member for driving the detection inner sleeve to rotate is provided at the end of the sleeve body; multiple groups of rotating members are arranged along the sleeve opening of the sleeve body.

[0010] Preferably, the rotating member includes a driving motor located on the sleeve body; a bent rod is connected to the main shaft of the driving motor; an electric grinding roller is connected to the bent rod; the electric grinding roller is arranged parallel to the center line of the automobile axle.

[0011] Preferably, a circle of installation grooves is provided inside the sleeve body; the installation grooves are the detection ends, and ultrasonic detectors are provided in the installation grooves.

[0012] Preferably, a dust suction member is provided inside the sleeve body; the dust suction member includes a dust suction port located on the sleeve body and a dust collection box; a negative pressure pump is provided in the dust collection box and is connected to the dust suction port through a dust suction pipe.

[0013] Preferably, dust collecting cavities are provided on both sides of the installation groove; the dust suction ports are arranged in a circle along the inside of the sleeve body and are respectively connected to the dust collecting cavities on both sides; the dust suction pipe is connected to the dust collecting cavity.

[0014] The present invention also provides an automobile axle detection method, which uses the above-mentioned automobile axle detection device, and the detection steps are as follows:

[0015] S1. Pass the automobile axle through the three groups of detection inner sleeves in sequence;

[0016] S2. Detection method 1: Use a rotating part to clamp the vehicle axle from both ends; the stretching component pulls and presses the vehicle axle for telescopic detection.

[0017] Detection method 2: Use a rotating part to fix the vehicle axle at three points; the detection component in the middle moves towards one side of the vehicle axle, and the detection components at both ends move towards the other side of the vehicle axle for bending detection.

[0018] Detection method 3: Use a rotating part to fix the vehicle axle at three points; the detection component in the middle remains stationary, and the detection components at both ends move in opposite directions towards the two sides of the vehicle axle respectively for bending detection.

[0019] Detection method 4: Use a rotating part to clamp the vehicle axle from both ends, and the detection inner sleeves at both ends rotate in opposite directions for torsion detection.

[0020] Detection method 5: Use a rotating part to clamp the vehicle axle from both ends, the detection plate in the middle moves between the detection plates on both sides, and the rotating part in the middle grinds the vehicle axle during the movement for wear detection.

[0021] S3. The detection end collects the detection data of the vehicle axle to judge the anti-deformation and anti-fracture capabilities of the vehicle axle when bearing torsion, bending, tension-compression, and wear.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects: First, during detection, the detection component can move in the X and Y directions. By moving in different directions and applying corresponding loads, the vehicle axle can be subjected to stretching, compression, and bending detections. Then, the detection inner sleeve rotates coaxially within the detection outer sleeve, and together with the rotating parts on both sides to fix the vehicle axle, the vehicle axle can be driven to rotate, and torsion detection can be carried out by adjusting the rotation direction and speed. Since the rotating parts are set to be movable and rotatable, and are paired front and back, not only can the rotation of the vehicle axle be controlled, but also the vehicle axle can be clamped and ground to meet the wear detection requirements. Finally, the ultrasonic detector timely and comprehensively collects the performance data of the vehicle axle. The dust-absorbing part cleans the vehicle axle and the ultrasonic detector, and at the same time removes the dust generated during grinding. Finally, through the cooperation of multiple groups of detection plates, adjustment components, and detection components, the vehicle axle can be flexibly detected at three points. The detection methods are diverse, the detection range is large, the efficiency is high, the error is small, which is conducive to ensuring the quality of the vehicle chassis. Brief Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the vehicle axle detection device in the present invention;

[0024] Figure 2 It is a disassembled schematic diagram of the vehicle axle detection device in the present invention;

[0025] Figure 3 It is a schematic structural diagram of a single group of detection plates, adjustment components, and detection components in the present invention;

[0026] Figure 4 is the splitting schematic diagram of Figure 3 ;

[0027] Figure 5 is the structural schematic diagram of the detection component in the present invention;

[0028] Figure 6 is Figure 4 the enlarged schematic diagram of the position A in

[0029] Figure 7 is the cross-sectional view of the detection component in the present invention;

[0030] Figure 8 is Figure 7 the enlarged schematic diagram of the position B in

[0031] Reference numerals: 1, detection table; 101, first chute; 2, detection plate; 3, stretching component; 301, double-headed telescopic driving member; 302, first slider; 4, adjusting component; 401, adjusting frame; 402, third slider; 403, mounting table; 404, pulling reinforcement member; 405, third chute; 406, second slider; 407, connecting block; 408, lead screw; 5, detection component; 501, detection outer sleeve; 502, detection inner sleeve; 50201, sleeve body; 50202, mounting groove; 50204, dust suction port; 50205, dust collecting cavity; 50206, dust collecting box; 50207, dust suction pipe; 503, rotating member; 50301, driving motor; 50302, bent rod; 50303, electric grinding roller; 505, mounting groove; 506, driving member; 50601, gear; 50602, toothed ring. Specific embodiments

[0032] Embodiment 1, as Figures 1-4 shown, an automobile shaft detection device proposed by the present invention includes a stretching component 3, a detection plate 2, an adjusting component 4, and a detection component 5. The stretching component 3 is located on the detection table 1 and is set to be fixed in the middle and telescopic at both ends; three groups of detection plates 2 are provided, one group is located on the fixed part of the stretching component 3, and two groups are respectively located on the telescopic parts of the stretching component 3; the adjusting components 4 are arranged corresponding to the detection plates 2 one by one; the detection components 5 are arranged corresponding to the adjusting components 4 one by one, and are moved along the X and Y directions on the detection plate 2 by adjusting the position of the adjusting component 4; the detection component 5 includes a detection outer sleeve 501 connected to the adjusting component 4 and a detection inner sleeve 502 rotatably coaxially in the detection outer sleeve 501; the inside of the detection inner sleeve 502 is for the automobile shaft to pass through, and a detection end is provided, and rotating members 503 with grinding and clamping functions are provided at both ends of the detection inner sleeve 502.

[0033] In the present invention, the X direction refers to the length direction of the vehicle axle (parallel to the detection plate 2 is required), and the Y direction refers to the diameter direction of the vehicle axle (parallel to the detection plate 2 is required).

[0034] As Figures 1-2 shown, the stretching assembly 3 includes a double-headed telescopic driving member 301; the double-headed telescopic driving member 301 is arranged in parallel on both sides of the detection table 1; a first slider 302 is arranged on the telescopic end of each group of double-headed telescopic driving members 301; the first slider 302 is connected to the detection plate 2.

[0035] It should be further noted that a first chute 101 for the first slider 302 to slide is arranged on the detection table 1.

[0036] The double-headed telescopic driving member 301 is set as a double-headed two-way cylinder. The double-headed two-way cylinder simulates the tensile or compressive load borne by the vehicle axle in actual use by applying tensile or compressive forces to both ends of the vehicle axle simultaneously, so as to detect its performance. During detection, both ends of the double-headed two-way cylinder are respectively connected to the detection tables 1 at both ends through the first sliders 302, and the vehicle axle is fixed by the rotating member 503. Ensure that the push rod of the double-headed two-way cylinder is aligned with the center line of the vehicle axle to avoid eccentric loading. Then, tensile and compression tests are carried out.

[0037] During the tensile test, tensile forces are applied to both ends of the vehicle axle simultaneously, and the load is gradually increased until the preset value is reached or the axle breaks. During the compression test, reverse pressures are applied to both ends of the vehicle axle. The detection end records the change data of the vehicle axle during the tensile and compression tests.

[0038] As Figure 3 shown, the adjusting assembly 4 includes an adjusting frame 401 slidably arranged on the detection plate 2 in the X direction and a second slider 406 slidably arranged on the adjusting frame 401 in the Y direction; the detection outer sleeve 501 is connected to the second slider 406; a pulling and strengthening member 404 for pulling the second slider 406 to move horizontally is arranged on the adjusting frame 401.

[0039] It should be further noted that a second chute for the third slider 402 to slide is arranged on the detection plate 2; a lead screw 408 driven by a motor to rotate is arranged in the second chute; the third slider 402 is threadedly connected to the lead screw 408 and slides horizontally in the second chute.

[0040] It should be further noted that mounting platforms 403 are arranged at both ends of the adjusting frame 401, and a third chute 405 is arranged in the middle; the pulling and strengthening member 404 is set as a hydraulic cylinder, and two groups of hydraulic cylinders are respectively arranged on the two groups of mounting platforms 403, and the first telescopic rods are respectively connected to the detection outer sleeve 501 through connection blocks 407 on the left and right.

[0041] It should be further noted that the second slider 406 is slidably arranged in the third chute 405; the third chute 405 is perpendicular to the second chute.

[0042] By sliding the second slider 406 in the Y direction and the third slider 402 in the X direction, the position of the detection component 5 can be adjusted, that is, the position of the vehicle axle at the detection point can be adjusted. By moving multiple detection points, not only can vehicle axles of different sizes be positioned, but also a load can be applied to the corresponding detection points in cooperation with the tension reinforcement 404 to detect the anti-deformation and anti-fracture capabilities of the vehicle axle.

[0043] As Figures 5-6 shown, the detection inner sleeve 502 includes a sleeve body 50201 rotatably connected to the detection outer sleeve 501; a driving member 506 for driving the detection inner sleeve 502 to rotate is provided at the end of the sleeve body 50201; multiple groups of rotating members 503 are arranged along the mouth of the sleeve body 50201.

[0044] It should be further noted that a mounting groove 505 is provided at the mouth of the sleeve body 50201; the driving member 506 includes a toothed ring 50602 located in the mounting groove 505; a gear 50601 driven by a motor is provided on the detection outer sleeve 501; the gear 50601 is meshed with the toothed ring 50602 to drive the sleeve body 50201 to rotate coaxially relative to the detection outer sleeve 501.

[0045] The rotation of the sleeve body 50201 can drive the detection end to rotate synchronously, realizing 360-degree detection, and can also be used for torsional detection.

[0046] As Figure 7 shown, the rotating member 503 includes a driving motor 50301 located on the sleeve body 50201; a bent rod 50302 is connected to the main shaft of the driving motor 50301; an electric grinding roller 50303 is connected to the bent rod 50302; the electric grinding roller 50303 is arranged parallel to the center line of the vehicle axle.

[0047] During detection, the driving motor 50301 drives the bent rod 50302 to rotate, so that the electric grinding roller 50303 on the outer periphery approaches the vehicle axle and fits against the axle wall. During detection, since the electric grinding roller 50303 can move and rotate, and two groups are arranged one in front and the other behind, the vehicle axle can be clamped while being ground, and the rotation of the vehicle axle can also be controlled to meet the detection requirements.

[0048] As Figure 7 shown, a mounting groove 50202 is provided inside the sleeve body 50201; the mounting groove 50202 is the detection end, and an ultrasonic detector is provided in the mounting groove 50202.

[0049] The ultrasonic detector is arranged in the mounting groove 50202, which can reduce the collision and wear of the vehicle axle on the ultrasonic detector, achieving a protective effect. During detection, by using the propagation and reflection of sound waves in the vehicle axle, defects such as cracks, pores, and inclusions on the surface or inside of the axle can be detected.

[0050] As shown Figures 7-8 in the figure, a dust suction member is arranged inside the sleeve body 50201; the dust suction member includes a dust suction port 50204 and a dust collection box 50206 located on the sleeve body 50201; a negative pressure pump is arranged in the dust collection box 50206 and is connected to the dust suction port 50204 through a dust suction pipe 50207; there may be contamination before the vehicle axle is detected, and dust adheres to the surface. The negative pressure of the dust suction port 50204 can clean the vehicle axle and reduce the detection error. When grinding and detecting, dust will fly, and the dust covering the ultrasonic detector will also cause detection errors. Therefore, the dust suction member can also be used for cleaning.

[0051] It should be further noted that dust collecting cavities 50205 are arranged on both sides of the installation groove 50202; the dust suction ports 50204 are arranged in a circle along the inside of the sleeve body 50201 and are respectively connected to the dust collecting cavities 50205 on both sides; the dust suction pipes 50207 are connected to the dust collecting cavities 50205; the dust suction ports 50204 are close to the installation groove 50202, so the ultrasonic detector can also be cleaned at a close distance.

[0052] Embodiment 2: Based on the vehicle axle detection device in Embodiment 1, a vehicle axle detection method is proposed, and the detection method is as follows:

[0053] Detection method 1: The vehicle axle is sequentially passed through three groups of detection inner sleeves 502, and the driving motor 50301 drives the bent rod 50302 to rotate, so that the electric grinding rollers 50303 on the outer periphery are close to the vehicle axle and fit against the axle wall. The electric grinding rollers 50303 clamp and fix the vehicle axle from both ends; the stretching assembly 3 performs stretching detection, applies tensile forces to both ends of the vehicle axle simultaneously, and gradually increases the load until the preset value is reached or the axle breaks; the ultrasonic detectors at both ends collect data at both ends of the vehicle axle, and the ultrasonic detector in the middle collects data in the middle of the vehicle axle.

[0054] Detection method 2: The two ends and the middle of the vehicle axle are fixed by the rotating member 503; when performing bending detection, the pulling reinforcement member 404 on the detection assembly 5 in the middle applies a load to the corresponding detection point, so that the vehicle axle is stressed and moves to one side, forming a bending vertex; the pulling reinforcement member 404 on the detection assembly 5 at both ends applies a load to the corresponding detection point, so that the vehicle axle is stressed and moves to the other side, forming a bending end point. The ultrasonic detectors at both ends collect data at both ends of the vehicle axle, and the ultrasonic detector in the middle collects data in the middle of the vehicle axle.

[0055] Detection method three: Fix both ends and the middle of the vehicle axle using the rotating member 503; when performing the bending detection, the detection assembly 5 in the middle remains stationary, and the detection assemblies 5 at both ends move in opposite directions towards the two sides of the vehicle axle, that is, the second sliders 406 move left and right; the ultrasonic detectors at both ends collect data at both ends of the vehicle axle, and the ultrasonic detector in the middle collects data in the middle of the vehicle axle.

[0056] Detection method four: When performing the torsion detection, use the rotating member 503 to clamp the vehicle axle from both ends. The gear 50601 is meshed with the toothed ring 50602, and the driving sleeve body 50201 rotates coaxially relative to the detection outer sleeve 501. Finally, the detection inner sleeves 502 at both ends rotate in opposite directions, driving the two ends of the vehicle axle to twist; the ultrasonic detectors at both ends collect data at both ends of the vehicle axle, and the ultrasonic detector in the middle collects data in the middle of the vehicle axle.

[0057] Detection method five: When performing the wear detection, use the rotating member 503 to clamp the vehicle axle from both ends. The detection plate 2 in the middle moves between the detection plates 2 on both sides. During the movement, the rotating member 503 in the middle uses the electric grinding roller 50303 to grind the vehicle axle; the dust suction member removes dust synchronously during grinding; the ultrasonic detector collects data of the vehicle axle before and after grinding.

[0058] The above detection methods can be operated independently or in combination with multiple items.

[0059] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. An automobile axle detection device, characterized in that, Comprising: A stretching component (3), which is located on the detection table (1) and is set to be fixed in the middle and telescopic at both ends; A detection board (2), with three groups of detection boards (2) set. One group is located on the fixed part of the stretching component (3), and the two groups are respectively located on the telescopic parts of the stretching component (3); Adjusting components (4), which are arranged on the detection boards (2) in one-to-one correspondence; And detection components (5), which are arranged on the adjusting components (4) in one-to-one correspondence and move along the X and Y directions on the detection board (2) by adjusting the position of the adjusting components (4); By moving in different directions and applying corresponding loads, tensile, compressive, and bending tests can be performed on the vehicle axle; The detection component (5) includes a detection outer sleeve (501) connected to the adjusting component (4) and a detection inner sleeve (502) rotatably coaxially inside the detection outer sleeve (501); The inside of the detection inner sleeve (502) is for the vehicle axle to pass through, and a detection end is provided. Rotating parts (503) with grinding and clamping functions are provided at both ends of the detection inner sleeve (502), which can realize the torsion and wear detection of the vehicle axle.

2. The vehicle axle detection device according to claim 1, characterized in that, The stretching component (3) includes a double-headed telescopic driving part (301); The double-headed telescopic driving parts (301) are arranged in parallel on both sides of the detection table (1); A slider one (302) is provided on the telescopic end of each group of double-headed telescopic driving parts (301); The slider one (302) is connected to the detection board (2).

3. The vehicle axle detection device according to claim 1, characterized in that, The adjusting component (4) includes an adjusting frame (401) slidably arranged on the detection board (2) along the X direction and a slider two (406) slidably arranged on the adjusting frame (401) along the Y direction; The detection outer sleeve (501) is connected to the slider two (406); A pulling and strengthening part (404) for pulling the slider two (406) to move horizontally is provided on the adjusting frame (401).

4. The vehicle axle detection device according to claim 1, characterized in that The detection inner sleeve (502) includes a sleeve body (50201) rotatably connected to the detection outer sleeve (501); A driving part (506) for driving the detection inner sleeve (502) to rotate is provided at the end of the sleeve body (50201); Multiple groups of rotating parts (503) are arranged along the mouth of the sleeve body (50201).

5. The vehicle axle detection device according to claim 4, characterized in that, The rotating part (503) includes a driving motor (50301) located on the sleeve body (50201); A bent rod (50302) is connected to the main shaft of the driving motor (50301); An electric grinding roller (50303) is connected to the bent rod (50302); The electric grinding roller (50303) is arranged parallel to the center line of the vehicle axle.

6. The vehicle axle detection device according to claim 4, characterized in that, An installation groove (50202) is provided in a circle inside the sleeve body (50201); The installation groove (50202) is the detection end, and an ultrasonic detector is provided in the installation groove (50202).

7. The vehicle axle detection device according to claim 6, wherein, A dust suction part is provided inside the sleeve body (50201); The dust suction part includes a dust suction port (50204) located on the sleeve body (50201) and a dust collection box (50206); A negative pressure pump is provided in the dust collection box (50206) and is connected to the dust suction port (50204) through a dust suction pipe (50207).

8. The vehicle axle detection device according to claim 7, characterized in that, Dust collecting chambers (50205) are arranged on both sides of the installation groove (50202); the dust suction ports (50204) are arranged in a circle along the inside of the sleeve body (50201) and are respectively connected to the dust collecting chambers (50205) on both sides; the dust suction pipes (50207) are communicated with the dust collecting chambers (50205).

9. Method for detecting automobile axle, characterized in that, For the vehicle axle detection device described in claim 1, the detection steps are as follows: S1. Pass the vehicle axle through three groups of detection inner sleeves (502) in sequence; S2. Detection method 1: Use the rotating member (503) to clamp the vehicle axle from both ends; the stretching assembly (3) pulls and presses the vehicle axle for telescopic detection; Detection method 2: Use the rotating member (503) to fix the vehicle axle at three points; the detection assembly (5) in the middle moves towards one side of the vehicle axle, and the detection assemblies (5) at both ends move towards the other side of the vehicle axle for bending detection; Detection method 3: Use the rotating member (503) to fix the vehicle axle at three points; the detection assembly (5) in the middle remains stationary, and the detection assemblies (5) at both ends move in opposite directions towards both sides of the vehicle axle for bending detection; Detection method 4: Use the rotating member (503) to clamp the vehicle axle from both ends, and the detection inner sleeves (502) at both ends rotate in opposite directions for torsion detection; Detection method 5: Use the rotating member (503) to clamp the vehicle axle from both ends, the detection plate (2) in the middle moves between the detection plates (2) on both sides, and the rotating member (503) in the middle grinds the vehicle axle during the movement for wear detection; S3. The detection end collects the detection data of the vehicle axle and judges the anti-deformation and anti-fracture capabilities of the vehicle axle when bearing torsion, bending, tension-compression and wear.

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