An automatic flaw detection device for shaft-type workpieces

Abstract

This utility model discloses an automatic flaw detection device for shaft-type workpieces, including a base and a controller. A rotating support module is installed on the right side of the base, and a three-axis adjustment module for adjusting the position of the flaw detection probe is installed on the left side of the base. It also includes a laser sensor for scanning the contour of the shaft-type workpiece to control the three-axis adjustment module to adjust the position of the flaw detection probe. The controlled ends of the rotating support module and the three-axis adjustment module are respectively connected to the output end of the controller, and the output end of the laser sensor is connected to the input end of the controller. This utility model supports the shaft-type workpiece through two sets of opposing support rollers in the rotating support module, improving the efficiency of loading and unloading, ensuring that the shaft-type workpiece can automatically center when supported by the support rollers, and allowing the flaw detection probe to adjust in a timely manner according to changes in the workpiece surface dimensions, ensuring the accuracy of flaw detection on the surface and core of the shaft-type workpiece and improving the flaw detection efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of workpiece flaw detection devices, specifically to an automatic flaw detection device for shaft-type workpieces. Background Technology

[0002] Shafts are common and important parts in the machinery industry, mainly used to support transmission components, transmit torque, and bear loads. Ensuring the quality of these parts is crucial to the quality of mechanical products. Surface inspection is a vital part of shaft quality control. Currently, non-destructive testing of shaft workpieces typically involves manual handheld flaw detectors, which are inefficient. Some flaw detectors are modified from horizontal lathes, but due to the structural limitations of horizontal lathes, clamping and unloading shaft workpieces is time-consuming and inconvenient. Furthermore, the clamping process requires alignment and correction of the shaft workpiece, further impacting inspection efficiency.

[0003] In addition, since some shaft-type workpieces are arranged in a stepped manner, with multiple steps of varying diameters on the shaft, the position of the probe cannot be adjusted in a timely manner according to the changes in the steps of the shaft-type workpiece when performing flaw detection on such workpieces, which affects the accuracy of the flaw detection. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an automatic flaw detection device for shaft workpieces, which can realize rapid loading and unloading of shaft workpieces during inspection, and ensure automatic alignment of shaft workpieces during loading and clamping, thereby improving flaw detection efficiency.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows.

[0006] An automatic flaw detection device for shaft-type workpieces includes a base and a controller. A rotary support module for supporting and rotating the shaft-type workpiece is installed on the right side of the base, and a three-axis adjustment module for adjusting the position of the flaw detection probe is installed on the left side of the base. The device also includes a laser sensor for scanning the contour of the shaft-type workpiece to control the three-axis adjustment module to adjust the position of the flaw detection probe. The controlled ends of the rotary support module and the three-axis adjustment module are respectively connected to the output end of the controller, and the output end of the laser sensor is connected to the input end of the controller.

[0007] The aforementioned automatic flaw detection device for shaft-type workpieces includes a rotating support module comprising a slide rail mounted on a base, a fixed bracket at one end of the slide rail, and a movable bracket slidably mounted on the slide rail opposite to the fixed bracket; two support rollers for supporting shaft-type workpieces are respectively mounted on the fixed bracket and the movable bracket; one of the support rollers located on the fixed bracket is connected to a rotary motor.

[0008] The aforementioned automatic flaw detection device for shaft-type workpieces has a movable motor installed on the side of the movable bracket away from the fixed bracket. The output shaft of the movable motor is connected to a helical gear, and a helical rack that meshes with the helical gear is installed on the slide rail. The helical rack is arranged along the length of the slide rail.

[0009] The aforementioned automatic flaw detection device for shaft-type workpieces has a workpiece shaft end limiting plate on the side of the fixed bracket away from the end face of the shaft-type workpiece, which limits one end of the shaft-type workpiece. On the side of the workpiece shaft end limiting plate that contacts the end face of the shaft-type workpiece, there are evenly arranged universal balls that ensure the rotation of the shaft-type workpiece.

[0010] The aforementioned automatic flaw detection device for shaft-type workpieces includes a three-axis adjustment module comprising an X-axis guide rail, which is parallel to a slide rail. An X-axis slider is slidably mounted on the X-axis guide rail, and an X-axis slider drive motor is mounted on the X-axis slider to drive its movement along the X-axis guide rail. A Y-axis guide rail is mounted on the X-axis slider, and a Y-axis slider is slidably mounted on the Y-axis guide rail. A Y-axis slider drive motor is mounted on the Y-axis slider to drive its movement along the Y-axis guide rail. A Z-axis guide sleeve is slidably mounted on the Y-axis slider, and a Z-axis guide rail is slidably mounted on the Z-axis guide sleeve. A Z-axis guide rail drive motor is mounted on the Z-axis guide sleeve to drive its movement along the Z-axis guide sleeve. The flaw detection probe is mounted on one end of the Z-axis guide rail facing the shaft-type workpiece via a probe bracket, and the flaw detection probe is oriented towards the central axis of the shaft-type workpiece.

[0011] In the aforementioned automatic flaw detection device for shaft-type workpieces, the laser sensor is located below the shaft-type workpiece and is slidably connected to the rotating support module.

[0012] In the aforementioned automatic flaw detection device for shaft-type workpieces, the laser sensor is disposed on one side of the three-axis adjustment module on which the flaw detection probe is installed, and the laser sensor is positioned facing the shaft-type workpiece.

[0013] The aforementioned automatic flaw detection device for shaft-type workpieces also includes an operation display screen that displays the outline of the shaft-type workpiece scanned by a laser sensor, and the operation display screen is bidirectionally connected to the controller.

[0014] The technological advancements achieved by this utility model are as follows, due to the adoption of the above technical solutions.

[0015] This utility model provides an automatic flaw detection device for shaft workpieces. The shaft workpiece is supported by two sets of oppositely arranged support rollers in the rotating support module. The shaft workpiece can be placed directly on the support rollers, eliminating the clamping operation and improving the efficiency of loading and unloading. Each set has two support rollers, which ensures that the shaft workpiece can be automatically centered when it is supported by the support rollers, without the need for additional adjustment and correction.

[0016] By setting up a laser sensor to detect the surface dimensions of shaft-type workpieces, the entire surface of the workpiece can be pre-tested. Then, a detection plane can be set, and the position of the flaw detection probe can be adjusted according to the set detection plane. Alternatively, the laser sensor can move together with the flaw detection probe to detect the surface dimensions of the shaft-type workpiece while performing flaw detection, and the position of the flaw detection probe can be adjusted in time. This ensures the accuracy of flaw detection on the surface and core of the shaft-type workpiece and improves the efficiency of flaw detection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the specific structure of Example 1;

[0018] Figure 2 This is a top view of Example 1;

[0019] Figure 3 This is a schematic diagram of the specific structure of the rotating support module;

[0020] Figure 4 for Figure 3 A magnified view of a portion of point B in the middle;

[0021] Figure 5 for Figure 3 A magnified view of a portion of point A in the middle;

[0022] Figure 6 This is a schematic diagram of the specific structure of the three-axis adjustment module;

[0023] Figure 7 This is a schematic diagram of the specific structure of Example 2;

[0024] Figure 8 This is a side view of Example 2.

[0025] The components include: 1. base, 2. rotary support module, 3. three-axis adjustment module, 4. laser sensor, 5. shaft-type workpiece, 6. sliding plate, 7. mounting bracket, 8. drive motor, 9. spur gear, and 10. spur rack.

[0026] 200. Slide rail, 201. Fixed bracket, 202. Support roller, 203. Rotary motor, 204. Movable bracket, 205. Moving motor, 206. First reducer, 207. Second reducer, 208. Workpiece shaft end limiting plate, 209. Universal ball, 210. Helical gear, 211. Helical rack;

[0027] 300. X-axis guide rail, 301. X-axis slider, 302. X-axis slider drive motor, 303. Y-axis guide rail, 304. Y-axis slider, 305. Y-axis slider drive motor, 306. Z-axis guide sleeve, 307. Z-axis guide rail, 308. Z-axis guide rail drive motor, 309. Flaw detection probe. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Example

[0029] An automatic flaw detection device for shaft-type workpieces, such as Figures 1 to 6 As shown, the device includes a base 1, a controller, and an operation display screen. A rotary support module 2 for supporting and rotating the shaft workpiece 5 is installed on the right side of the base 1. A three-axis adjustment module 3 for adjusting the position of the flaw detection probe 309 is installed on the left side of the base 1. The device also includes a laser sensor 4, which scans the contour of the shaft workpiece 5 to control the three-axis adjustment module 3 to adjust the position of the flaw detection probe 309, thereby performing flaw detection on the surface of the shaft workpiece 5.

[0030] The controlled ends of the rotary support module 2 and the three-axis adjustment module 3 are respectively connected to the output end of the controller, the output end of the laser sensor 4 is connected to the input end of the controller, and the operation display screen is bidirectionally connected to the controller.

[0031] The rotating support module 2 includes a slide rail 200 mounted on the base 1. A fixed bracket 201 is mounted on one end of the slide rail 200. A movable bracket 204 is slidably mounted on the slide rail 200, opposite to the fixed bracket 201. Two support rollers 202 are respectively mounted on the fixed bracket 201 and the movable bracket 204 for supporting the shaft workpiece 5.

[0032] One of the support rollers 202 located on the fixed bracket 201 is connected to the rotary motor 203. A second reducer 207 is also provided between the rotary motor 203 and the support roller 202. The rotary motor 230 drives the support roller 202 to rotate, thereby driving the shaft workpiece 5 to rotate, so that the flaw detection probe 309 can be used to detect flaws on the annular surface of the shaft workpiece.

[0033] A movable motor 205 is provided on the side of the movable bracket 204 away from the fixed bracket 201. The output shaft of the movable motor 205 is connected to the helical gear 210. A first reducer 206 is also provided between the movable motor 205 and the helical gear 210. A helical rack 211 is provided on the slide rail 200 to mesh with the helical gear 210. The helical rack 211 is arranged along the length of the slide rail 200.

[0034] In this embodiment, the movable bracket 204 is moved by the cooperation of the helical gear 210 and the helical rack 211 to support shaft workpieces 5 of different lengths. Other transmission methods, such as screw transmission, can also be used to move the movable bracket 204 along the slide rail 200.

[0035] A workpiece shaft end limiting plate 208 is provided on the side of the fixed bracket 201 away from the end face of the shaft workpiece 5 to limit one end of the shaft workpiece 5. A uniformly arranged universal ball 209 is provided on the side of the workpiece shaft end limiting plate 208 that contacts the end face of the shaft workpiece 5, so that the rotation of the shaft workpiece 5 can be affected while limiting the shaft workpiece 5.

[0036] One end of the workpiece shaft end limiting plate 208, which is in contact with the end face of the shaft workpiece 5, is slightly tilted inward so that the end face of the shaft workpiece can better rest against the workpiece shaft end limiting plate, ensuring that the shaft workpiece will not move during rotation.

[0037] The laser sensor 4 is located below the shaft workpiece 5, and the laser sensor 4 is slidably connected to the rotary support module 2.

[0038] Specifically, a sliding plate 6 is slidably mounted on the slide rail 200 located between the fixed bracket 201 and the movable bracket 204, and a mounting bracket 7 is provided in the middle of the sliding plate 6. The laser sensor 4 is mounted on the mounting bracket 7.

[0039] A rack 10 is provided on the slide rail 200, and a spur gear 9 is provided on one side of the slide plate 6 to mesh with the rack 10. The spur gear 9 is connected to the drive motor 8 provided on the slide plate 6. The spur gear and the rack work together to drive the laser sensor 4 to slide between the fixed bracket 201 and the movable bracket 204 to scan the supported shaft workpiece 5, obtain the surface contour of the shaft workpiece, and display it on the operation display screen.

[0040] During the flaw detection process, the surface to be inspected is selected on the operation display screen, and the position of the flaw detection probe is adjusted according to the position of the surface to perform flaw detection on the surface and the core of the shaft workpiece corresponding to the surface.

[0041] The three-axis adjustment module 3 includes an X-axis guide rail 300, which is parallel to the slide rail 200. An X-axis slider 301 is slidably mounted on the X-axis guide rail 300. An X-axis slider drive motor 302 is also mounted on the X-axis slider 301 to drive the X-axis slider 301 to move on the X-axis guide rail 300.

[0042] The X-axis slider 301 is provided with a Y-axis guide rail 303, and a Y-axis slider 304 is slidably disposed on the Y-axis guide rail 303. A Y-axis slider drive motor 305 is installed on the Y-axis slider 304 to drive the Y-axis slider 304 to move on the Y-axis guide rail 303.

[0043] A Z-axis guide sleeve 306 is slidably mounted on the Y-axis slider 304, a Z-axis guide rail 307 is slidably mounted on the Z-axis guide sleeve 306, and a Z-axis guide rail drive motor 308 is also mounted on the Z-axis guide sleeve 306 to drive the Z-axis guide rail 307 to move along the Z-axis guide sleeve 306.

[0044] The flaw detection probe 309 is mounted on one end of the Z-axis guide rail 307 facing the shaft workpiece 5 via a probe bracket, and is used to adjust the distance between the flaw detection probe 309 and the shaft workpiece by moving with the Z-axis guide rail 307.

[0045] The flaw detection probe 309 is positioned toward the central axis of the shaft workpiece 5. In this embodiment, the flaw detection probe 309 is positioned at a 90° position to the side of the axial workpiece.

[0046] In other embodiments, the flaw detection probe 309 can also be set at multiple angle positions such as above or 45° to the side of the shaft workpiece. Specifically, the angle position of the flaw detection probe 309 can be adjusted by adjusting the angle of the probe bracket. For example, a probe bracket with a slope with a different tilt angle can be used to install the flaw detection probe, and then the distance between the flaw detection probe and the shaft workpiece can be adjusted by the three-axis adjustment module.

[0047] The operation steps of this utility model are as follows:

[0048] First, adjust the position of the movable bracket 204 according to the length of the shaft workpiece. Then, place the shaft workpiece 5 between the fixed bracket 201 and the movable bracket 204, and support the shaft workpiece with two support rollers 202, ensuring that the shaft workpiece axis is centered.

[0049] Next, the rotary motor 203 is started, which drives one of the support rollers 202 to rotate, and the friction between the support roller and the shaft workpiece is used to drive the shaft workpiece to rotate.

[0050] Then, the laser sensor 4 is moved to the side close to the fixed bracket 201, and then the laser sensor 4 is moved from the fixed bracket 201 to the movable bracket 204 by the drive motor, so as to measure the contour dimensions of the shaft workpiece.

[0051] Subsequently, the triaxial adjustment module 3 will adjust the position of the flaw detection probe 309 to perform flaw detection on the surface of the shaft workpiece based on the contour dimensions of the flaw detection surface measured by the laser sensor 4.

[0052] Specifically, the laser sensor 4 sends the measurement data to the controller and transmits it to the operation display screen. Then, the workpiece surface to be inspected can be selected on the operation display screen. The three-axis adjustment module 3 will adjust the position of the inspection probe 309 according to the contour size of the selected inspection surface to perform inspection on the selected surface and the core of the corresponding shaft workpiece. Example

[0053] Based on Example 1, such as Figures 7 to 8 As shown, the laser sensor 4 is mounted on the three-axis adjustment module 3 near the shaft-like workpiece 5, and is not slidably mounted on the slide rail 200.

[0054] Specifically, the laser sensor 4 is mounted on one side of the Z-axis guide rail 307 near the flaw detection probe via a connecting bracket. In this way, when the three-axis adjustment module 3 adjusts the position of the flaw detection probe 309, the laser sensor 4 can follow the movement of the flaw detection probe 309 to detect the surface dimensions of the shaft workpiece in a timely manner, so as to adjust the distance between the flaw detection probe and the shaft workpiece in a timely manner.

[0055] This utility model provides an automatic flaw detection device for shaft workpieces. The shaft workpiece is supported by two sets of oppositely arranged support rollers in the rotating support module. The shaft workpiece can be placed directly on the support rollers, eliminating the clamping operation and improving the efficiency of loading and unloading. Each set has two support rollers, which ensures that the shaft workpiece can be automatically centered when it is supported by the support rollers, without the need for additional adjustment and correction.

[0056] By setting up a laser sensor to detect the surface dimensions of shaft-type workpieces, the entire surface of the workpiece can be pre-tested. Then, a detection plane can be set, and the position of the flaw detection probe can be adjusted according to the set detection plane. Alternatively, the laser sensor can move together with the flaw detection probe to detect the surface dimensions of the shaft-type workpiece while performing flaw detection, and the position of the flaw detection probe can be adjusted in time. This ensures the accuracy of flaw detection on the surface and core of the shaft-type workpiece and improves the efficiency of flaw detection.

Claims

1. An automatic flaw detection device for shaft-type workpieces, characterized in that: The system includes a base (1) and a controller. A rotary support module (2) for supporting the shaft workpiece (5) and driving the shaft workpiece (5) to rotate is installed on the right side of the base (1). A three-axis adjustment module (3) for adjusting the position of the flaw detection probe (309) is installed on the left side of the base (1). The system also includes a laser sensor (4) for scanning the contour of the shaft workpiece (5) so as to control the three-axis adjustment module (3) to adjust the position of the flaw detection probe (309). The controlled ends of the rotary support module (2) and the three-axis adjustment module (3) are respectively connected to the output end of the controller, and the output end of the laser sensor (4) is connected to the input end of the controller.

2. The automatic flaw detection device for shaft-type workpieces according to claim 1, characterized in that: The rotating support module (2) includes a slide rail (200) set on the base (1), a fixed bracket (201) is set at one end of the slide rail (200), and a movable bracket (204) opposite to the fixed bracket (201) is slidably set on the slide rail (200); two support rollers (202) for supporting shaft workpieces (5) are respectively set on the fixed bracket (201) and the movable bracket (204); one of the support rollers (202) located on the fixed bracket (201) is connected to a rotary motor (203).

3. The automatic flaw detection device for shaft-type workpieces according to claim 2, characterized in that: A movable motor (205) is provided on the side of the movable bracket (204) away from the fixed bracket (201). The output shaft of the movable motor (205) is connected to the helical gear (210). A helical rack (211) is provided on the slide rail (200) to mesh with the helical gear (210). The helical rack (211) is arranged along the length of the slide rail (200).

4. The automatic flaw detection device for shaft-type workpieces according to claim 2, characterized in that: A workpiece shaft end limiting plate (208) is provided on the side of the fixed bracket (201) away from the end face of the shaft workpiece (5) to limit one end of the shaft workpiece (5). On the side of the workpiece shaft end limiting plate (208) in contact with the end face of the shaft workpiece (5), there are evenly arranged universal balls (209) to ensure the rotation of the shaft workpiece (5).

5. The automatic flaw detection device for shaft-type workpieces according to claim 2, characterized in that: The three-axis adjustment module (3) includes an X-axis guide rail (300), which is parallel to the slide rail (200). An X-axis slider (301) is slidably mounted on the X-axis guide rail (300), and an X-axis slider drive motor (302) is also mounted on the X-axis slider (301) to drive the X-axis slider (301) to move on the X-axis guide rail (300). A Y-axis guide rail (303) is mounted on the X-axis slider (301), and a Y-axis slider (304) is slidably mounted on the Y-axis guide rail (303). A motor is mounted on the Y-axis slider (304) to drive the Y-axis slider (304) to move on the X-axis guide rail (304). Y-axis slider drive motor (305) moves on Y-axis guide rail (303); Z-axis guide sleeve (306) is slidably arranged on Y-axis slider (304), Z-axis guide rail (307) is slidably arranged on Z-axis guide sleeve (306), and Z-axis guide rail drive motor (308) is also arranged on Z-axis guide sleeve (306) to drive Z-axis guide rail (307) to move along Z-axis guide sleeve (306); Flaw detection probe (309) is mounted on one end of Z-axis guide rail (307) facing shaft workpiece (5) through probe bracket and the flaw detection probe (309) is facing the central axis of shaft workpiece (5).

6. The automatic flaw detection device for shaft-type workpieces according to claim 1, characterized in that: The laser sensor (4) is located below the shaft workpiece (5), and the laser sensor (4) is slidably connected to the rotary support module (2).

7. The automatic flaw detection device for shaft-type workpieces according to claim 1, characterized in that: The laser sensor (4) is located on one side of the triaxial adjustment module (3) on which the flaw detection probe (309) is installed, and the laser sensor (4) is positioned facing the shaft workpiece (5).

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