Integrated mechanism for surface roughness testing of axle rolling

Abstract

This utility model relates to an integrated mechanism for detecting the surface roughness of rolled surfaces of axles, including a base frame for limiting the axle, a detection section, and an adjustment assembly for adjusting the position of the detection section. The detection section includes a roughness measuring instrument body and a detection head electrically connected to the roughness measuring instrument body. A buffer is provided between the roughness measuring instrument body and the detection head. The buffer includes a buffer spring and a composite buffer layer. One end of the buffer spring is connected to the roughness measuring instrument body, and the other end is connected to the composite buffer layer. The side of the composite buffer layer away from the buffer spring is connected to the detection head. This utility model forms a four-level buffer through the buffer spring, honeycomb buffer pad, rubber buffer pad, and butterfly spring, which can absorb most of the instantaneous impact force and improve the detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of axle technology, and in particular to an integrated mechanism for detecting the surface roughness of axle rolling. Background Technology

[0002] In the process of rolling surface roughness inspection of axles, the probe is a key component that directly contacts the axle surface and acquires inspection data. The stability of its working state and its own safety are of paramount importance.

[0003] However, the surface of the axle after rolling is not perfectly smooth and may contain minor bumps, hard spots, or other processing defects. When the probe accidentally comes into contact with these uneven areas during inspection, it will be subjected to a significant impact force. Under such impact, it is difficult to effectively protect the probe, which can easily lead to damage to the probe's stylus and internal sensor malfunction. This, in turn, affects the accuracy of the inspection results and the lifespan of the probe, resulting in frequent probe replacements. This not only increases inspection costs but also reduces inspection efficiency, posing a significant challenge to inspection progress and quality control, especially in large-scale axle inspection production scenarios. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing an integrated mechanism for detecting the surface roughness of axle rolling. The specific technical solution is as follows:

[0005] An integrated mechanism for detecting the surface roughness of axle rolling includes a base frame for limiting the axle, a detection section, and an adjustment assembly for adjusting the position of the detection section. The detection section includes a roughness measuring instrument body and a detection head electrically connected to the roughness measuring instrument body. A buffer is provided between the roughness measuring instrument body and the detection head. The buffer includes a buffer spring and a composite buffer layer. One end of the buffer spring is connected to the roughness measuring instrument body, and the other end is connected to the composite buffer layer. The side of the composite buffer layer away from the buffer spring is connected to the detection head.

[0006] As a further improvement to the above technical solution, the composite buffer layer includes a sleeve and a support plate, a honeycomb buffer pad, and a rubber buffer pad fitted inside the sleeve; the support plate is connected to the bottom end of the buffer spring, and the top end is welded and fixed to the buffer spring; the honeycomb buffer pad is connected between the support plate and the rubber buffer pad and is fixed by adhesive; the rubber buffer pad is fixedly connected to the bottom side of the inner wall of the sleeve.

[0007] As a further improvement to the above technical solution, the bottom of the bearing plate is provided with 6 weight-reducing holes, and a butterfly spring is provided inside the weight-reducing hole. One end of the butterfly spring abuts against the honeycomb buffer pad, and the other end is welded to the inner wall of the bearing plate.

[0008] As a further improvement to the above technical solution, a limiting guide rod is inserted into the inner side of the buffer spring, and a guide hole is provided inside the honeycomb buffer pad. One end of the guide hole passes through the honeycomb buffer pad and the rubber buffer pad in sequence. One end of the limiting guide rod is threadedly connected to the roughness measuring instrument body, and the other end extends into the guide hole to play a guiding and limiting role.

[0009] As a further improvement to the above technical solution, a limiting ring is provided on the bottom side of the guide hole to prevent the limiting guide rod from moving down excessively; the inside of the limiting guide rod is provided with a wire hole, and the roughness measuring instrument body is connected to the detection head after the wire passes through the wire hole and the guide hole, so as to avoid the wire from getting tangled.

[0010] As a further improvement to the above technical solution, the top of the bottom frame is provided with a limiting groove that is compatible with the axle; both sides of the bottom frame are equipped with an electric telescopic rod, and the bottom of the electric telescopic rod is equipped with a V-shaped clamping plate by bolts for clamping axles of different diameters.

[0011] As a further improvement to the above technical solution, the adjustment assembly includes a top frame mounted on the bottom frame, on which an electric telescopic rod two is mounted, and its output rod is connected to an electric telescopic rod three via a flange. The output rod of the electric telescopic rod three is bolted to the roughness measuring instrument body. The electric telescopic rod two is used to drive the electric telescopic rod three to move laterally, and the electric telescopic rod three is used to drive the roughness measuring instrument body to move vertically.

[0012] The beneficial effects of this utility model are:

[0013] 1. A four-level buffer system consisting of a buffer spring, a honeycomb buffer pad, a rubber buffer pad, and a butterfly spring can absorb most of the instantaneous impact force. A limiting guide rod ensures the axial stability of the detection head during the buffering process.

[0014] 2. The V-shaped clamping plate, in conjunction with the electric telescopic rod, can quickly clamp the axle. The two-dimensional movement range of the adjustment component covers the entire surface of the axle, reducing the inspection time for a single axle to 2-3 minutes and effectively improving efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the detection unit in this utility model;

[0017] Figure 3 for Figure 2 A magnified structural diagram of point A in the middle.

[0018] Reference numerals: 1. Base frame; 100. Limiting groove; 2. Electric telescopic rod one; 21. V-shaped clamping plate; 3. Top frame; 4. Detection section; 41. Roughness measuring instrument body; 400. Guide hole; 42. Limiting guide rod; 420. Wire hole; 43. Buffer spring; 44. Sleeve; 45. Detection head; 46. Bearing plate; 460. Weight reduction hole; 461. Butterfly spring; 47. Honeycomb buffer pad; 48. Rubber buffer pad; 49. Limiting retaining ring; 5. Electric telescopic rod two; 6. Electric telescopic rod three. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] Example

[0021] Integrated axle rolling surface roughness detection mechanism, reference Figure 1-3 It mainly consists of a base frame 1, a detection unit 4, and an adjustment assembly. The materials of each component are preferably high-strength aluminum alloy or stainless steel, taking into account both lightweight and wear resistance.

[0022] Specifically, the top V-shaped limiting groove 100 (angle 120°) is used to support the axle, and the inner wall silicone pad prevents scratching the axle surface. The two electric telescopic rods 2 are symmetrically distributed on both sides with a spacing of 800mm. The V-shaped clamping plate 21 (opening angle 90°) connected to the output end can move up and down under the drive of the electric telescopic rods 2, and together with the limiting groove 100, it can stably clamp axles of different diameters (clamping force adjustable from 0-500N).

[0023] The roughness measuring instrument body 41 (using TR200 type, resolution 0.001μm) is connected to the detection head 45 (can be diamond stylus, tip radius 2μm) via a wire, and the wire passes through the wire hole 420 and guide hole 400 of the limiting guide rod 42.

[0024] A buffer spring 43 is fitted onto the outside of the limiting guide rod 42, with its top end welded to the roughness measuring instrument body 41 and its bottom end welded to the support plate 46. Inside the sleeve 44, the support plate 46, honeycomb buffer pad 47, and rubber buffer pad 48 are installed sequentially. Each of the six weight-reducing holes 460 at the bottom of the support plate 46 contains a butterfly spring 461, which abuts against the top surface of the honeycomb buffer pad 47, forming a two-stage buffer. The detection head 45 is installed at the center of the bottom of the rubber buffer pad 48. When it contacts the axle surface, the impact force is transmitted sequentially through the rubber buffer pad 48, honeycomb buffer pad 47, butterfly spring 461, and support plate 46 to the buffer spring 43, achieving multi-stage attenuation.

[0025] Among them, the top frame 3 of the adjustment component spans the bottom frame 1, and the second electric telescopic rod 5 at the top is arranged along the axle axis, driving the third electric telescopic rod 6 to move laterally; the third electric telescopic rod 6 is arranged vertically, driving the detection part 4 to move up and down, adjusting the contact pressure between the detection head 45 and the axle surface (preset 0.5-1N).

[0026] Working principle

[0027] 1. Loading and clamping: Place the rolled axle in the limiting groove 100 of the bottom frame 1, start the electric telescopic rod 2, and the V-shaped clamping plate 21 moves down to contact the surface of the axle. Apply the preset clamping force (adjusted according to the diameter of the axle, usually 300-400N) to complete the positioning.

[0028] 2. Detection position adjustment: The detection unit 4 is moved to the area to be detected on the axle (such as the wheel seat section or journal section) by the electric telescopic rod 2 5. The electric telescopic rod 3 6 moves down to bring the detection head 45 close to the axle surface until the contact pressure reaches the preset value (adjusted by feedback from the roughness measuring instrument body 41).

[0029] 3. Buffer protection and detection: During the detection process, if there is a protrusion on the surface of the axle, the detection head 45 will move upward under the impact force. The rubber buffer pad 48 will first compress and deform to absorb some of the energy. Then, the honeycomb structure of the honeycomb buffer pad 47 will collapse to further buffer the impact. The disc spring 461 will compress simultaneously to supplement the buffer. Finally, the buffer spring 43 will absorb the residual impact force. The limit guide rod 42 will move along the guide hole 400 to ensure the axial stability of the detection head 45 and avoid swaying.

[0030] 4. Data Acquisition and Reassembly: The roughness measuring instrument body 41 records the detection data in real time. After the single-area detection is completed, the electric telescopic rod 6 moves up and resets, and the electric telescopic rod 5 drives the detection unit 4 to move to the next detection area. The above process is repeated until the full surface detection is completed.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An integrated mechanism for detecting the surface roughness of axle rolling, characterized in that, The device includes a base frame (1) for limiting the axle, a detection unit (4), and an adjustment assembly for adjusting the position of the detection unit (4). The detection unit (4) includes a roughness measuring instrument body (41) and a detection head (45) electrically connected to the roughness measuring instrument body (41). A buffer is provided between the roughness measuring instrument body (41) and the detection head (45). The buffer includes a buffer spring (43) and a composite buffer layer. One end of the buffer spring (43) is connected to the roughness measuring instrument body (41), and the other end of the buffer spring (43) is connected to the composite buffer layer. The side of the composite buffer layer away from the buffer spring (43) is connected to the detection head (45).

2. The integrated mechanism for detecting the surface roughness of axle rolling as described in claim 1, characterized in that: The composite buffer layer includes a sleeve (44) and a support plate (46), a honeycomb buffer pad (47) and a rubber buffer pad (48) fitted inside the sleeve (44). The support plate (46) is connected to the bottom end of the buffer spring (43). The honeycomb buffer pad (47) has a regular hexagonal honeycomb structure inside. The honeycomb buffer pad (47) is connected between the support plate (46) and the rubber buffer pad (48). The rubber buffer pad (48) is fixedly connected to the bottom side of the inner wall of the sleeve (44).

3. The integrated mechanism for detecting the surface roughness of axle rolling as described in claim 2, characterized in that: The bottom of the bearing plate (46) is provided with several weight-reducing holes (460), and a butterfly spring (461) is provided inside the weight-reducing hole (460). One end of the butterfly spring (461) abuts against the honeycomb buffer pad (47).

4. The integrated mechanism for detecting the surface roughness of axle rolling as described in claim 3, characterized in that: A limiting guide rod (42) is inserted into the inner side of the buffer spring (43). A guide hole (400) is provided inside the honeycomb buffer pad (47). One end of the guide hole (400) passes through the honeycomb buffer pad (47) and the rubber buffer pad (48) in sequence. One end of the limiting guide rod (42) is connected to the roughness measuring instrument body (41), and the other end of the limiting guide rod (42) extends into the guide hole (400).

5. The integrated mechanism for detecting the surface roughness of axle rolling as described in claim 4, characterized in that: The bottom side of the guide hole (400) is provided with a limiting ring (49), and the inside of the limiting guide rod (42) is provided with a wire hole (420). The roughness measuring instrument body (41) is connected to the detection head (45) after passing through the wire hole (420) and the guide hole (400) with a wire.

6. The integrated mechanism for detecting the surface roughness of axle rolling as described in claim 1, characterized in that: The bottom frame (1) is provided with a limiting groove (100) adapted to the axle at the top. Both sides of the bottom frame (1) are equipped with an electric telescopic rod (2) by a mounting bracket. The bottom of the electric telescopic rod (2) is equipped with a V-shaped clamping plate (21). The inner side of the V-shaped clamping plate (21) is connected with a buffer pad layer.

7. The integrated mechanism for detecting the surface roughness of axle rolling as described in claim 1, characterized in that: The adjustment assembly includes a top frame (3) mounted on the bottom frame (1), on which an electric telescopic rod two (5) is mounted. The output rod of the electric telescopic rod two (5) is connected to an electric telescopic rod three (6). The output rod of the electric telescopic rod three (6) is connected to the roughness measuring instrument body (41). The electric telescopic rod two (5) is used to drive the electric telescopic rod three (6) to move laterally, and the electric telescopic rod three (6) is used to drive the roughness measuring instrument body (41) to move vertically.

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