Pin shaft multi-dimension defect detection screening machine

Abstract

The utility model discloses a kind of pin shaft multidimensional defect detection screening machines, the utility model relates to pin shaft detection technical field.It is including machine body and the control panel of being installed in the outer wall of machine body, the machine body top wall is equipped with for the first-level detection component of pin shaft detection specification and surface defect, the machine body top wall rear position is equipped with for the second-level detection component of pin shaft diameter and internal hollow state detection processing, this pin shaft multidimensional defect detection screening machine, when carrying out defect detection to pin shaft, by rotating assembly control pin shaft keeps 360 degrees slow rotation, provide convenience for the detection work of first-level detection component and second-level detection component, no dead angle rotation is provided for visual image detection, prevent the problem that pin shaft appears detection dead angle in detection process, further optimize the process of detection to prevent the situation of defect missed detection, with good effect for improving detection accuracy.

Description

Technical Field

[0001] This utility model relates to the field of pin detection technology, specifically a pin multi-dimensional defect detection and screening machine. Background Technology

[0002] This automated quality inspection equipment for pin-type fasteners integrates multiple inspection technologies to comprehensively inspect the pin's appearance, dimensions, internal structure, and other key dimensions, and automatically separates qualified and unqualified products. It is widely used in mass production scenarios in industries such as machinery manufacturing, automobiles, and construction machinery.

[0003] Regarding the aforementioned technologies, it is believed that: currently, when inspecting pins, the specifications and surface of the pins are generally checked. However, some pins have minor defects and deficiencies on their outer walls. When the defective part of the pin is away from the inspection area, there will be problems with oversight in the inspection, which will affect the overall selection of pins during operation. Utility Model Content

[0004] The purpose of this invention is to provide a multi-dimensional defect detection and screening machine for pin shafts, which solves the problems mentioned in the background art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A multi-dimensional defect detection and screening machine for pins includes a machine body and a control panel installed on the outer wall of the machine body. The top wall of the machine body is equipped with a primary detection component for detecting the pin specifications and surface defects. The rear of the top wall of the machine body is equipped with a secondary detection component for detecting the pin diameter and internal hollow state. The top wall of the machine body is equipped with a sieving component for classifying the tested pins as OK or NG samples based on the test results. The top wall of the sieving component is equipped with a rotating component for controlling the rotation of the pins and cooperating with the detection.

[0007] Furthermore, the primary detection component includes a vertical pole fixedly installed on the top wall of the machine body. A connecting seat is provided on the top wall of the vertical pole. A horizontal plate is installed on the outer wall of the connecting seat. A camera inspection device for detecting surface defects and length specifications of the pin is fixedly installed inside the horizontal plate. A head for identifying the pin is installed at the bottom of the camera inspection device. A limiting plate is fixedly installed at the bottom of the horizontal plate. The inner wall of the limiting plate is in contact with the outer wall of the head. A shaft is fixedly installed on the outer wall of the vertical pole. A slider is installed on the outer wall of the shaft. A sliding bracket is fixedly installed on the side wall of the slider. A ring light for supplementing the light source of the pin to be inspected is installed at the bottom of the sliding bracket.

[0008] Furthermore, the secondary detection component includes a light source bracket fixedly installed on the front of the top wall of the machine body, a surface light source for supplementing light to the pin end face position is fixedly installed on the outer wall of the light source bracket, a vertical shaft is fixedly installed on the rear of the top wall of the machine body, and an adapter block is fixedly installed on the outer wall of the vertical shaft.

[0009] Furthermore, a connecting platform is fixedly installed on the outer wall of the adapter block via an optical axis, a mounting base is fixedly installed on the side wall of the connecting platform, and a second camera detection device for detecting whether the pin shaft is blocked is fixedly installed on the inner wall of the mounting base. The position of the second camera detection device is adapted to the position of the surface light source.

[0010] Furthermore, the screening assembly includes two support columns symmetrically arranged front to back and mounted on the top wall of the machine body. The top wall of the support columns is fixedly connected to the bottom wall of the rotating assembly. A fixing frame is fixedly installed on the outer wall of the rear support column, and a single-axis servo motor is fixedly installed on the inner wall of the fixing frame.

[0011] Furthermore, the power shaft of the single-axis servo motor is fixedly mounted with a clamping plate through a bearing through a fixing frame. A screening plate for tilting and screening the tested pins is fixedly mounted on the inner wall of the clamping plate. A finished product box is provided on the top wall of the machine body and on the left side of the clamping plate, and a defective product box is provided on the top wall of the machine body and on the right side of the clamping plate.

[0012] Furthermore, the rotating assembly includes a track platform fixedly installed on the top wall of the supporting column. Slide rails are installed on both the front and rear parts of the top wall of the track platform. A fixed slide platform is installed on the left side of the outer wall of the slide rail, and a movable slide platform is installed on the right side of the outer wall of the slide rail. Mounting platforms are fixedly installed on the top walls of both the movable and fixed slide platforms.

[0013] Furthermore, a fixed sponge roller is rotatably mounted between the mounting platforms on the fixed slide, and a movable sponge roller is rotatably mounted between the mounting platforms on the movable slide. Stepper motors are fixedly mounted on the outer walls of both the movable and fixed slides. The power shaft of the stepper motor passes through the mounting platform via bearings and is fixedly connected to the corresponding fixed and movable sponge roller shafts.

[0014] Furthermore, the top wall of the track platform is provided with a feeding port, a guide rail is installed on the right side of the top wall of the track platform, a push rod is installed on one side of the guide rail, a guide platform is slidably installed on the outer wall of the guide rail, and the movable end of the push rod is fixedly connected to the guide platform.

[0015] Furthermore, a movable frame is fixedly installed on the top wall of the guide platform, and a connecting block is fixedly installed on the side wall of the movable frame at the position corresponding to the movable slide. The outer wall of the connecting block is fixedly connected to the corresponding movable slide.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. This multi-dimensional defect detection and screening machine for pins controls the pins to rotate slowly 360 degrees through a rotating component during defect detection. This facilitates the detection work of the primary and secondary detection components, and the rotation without blind spots allows for visual image capture and inspection, preventing blind spots in the detection process. This further optimizes the detection process and prevents missed defects, effectively improving the accuracy of the detection.

[0018] 2. This multi-dimensional defect detection and screening machine for pins has a primary detection component and a secondary detection component that can detect and identify the diameter and length specifications of the pins. At the same time, it can quickly identify existing defects by accurately taking pictures of the pin surface. It can also detect the hollow state of hollow pins and use visual algorithms to analyze whether there is any blockage in the hollow part of the product, which further improves the detection functionality and range of the entire device.

[0019] 3. This multi-dimensional defect detection and screening machine for pins can control the tilting direction of the screening component according to the detection results after the pin detection is completed. After the detection is completed, the moving sponge roller is controlled to move away from the fixed sponge roller, so that the pin falls from between them into the screening component. The OK and NG samples of the pin are classified and guided according to their tilting direction.

[0020] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0023] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0024] Figure 2 This is a rear view of the external structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the combination of the screening component, the primary detection component, the secondary detection component, and the rotating component of this utility model;

[0026] Figure 4 This is a schematic diagram of the external structure of the screening component of this utility model. Figure 1 ;

[0027] Figure 5 This is a schematic diagram of the external structure of the screening component of this utility model. Figure 2 ;

[0028] Figure 6 This is a schematic diagram of the external structure of the rotating component of this utility model;

[0029] Figure 7 This is a schematic diagram of the combination of the rotating component and the secondary detection component of this utility model. Figure 1 ;

[0030] Figure 8 This is a schematic diagram of the combination of the rotating component and the secondary detection component of this utility model. Figure 2 ;

[0031] Figure 9 This is a schematic diagram of the combination of the primary detection component and the secondary detection component of this utility model. Figure 1 ;

[0032] Figure 10 This is a schematic diagram of the combination of the primary detection component and the secondary detection component of this utility model. Figure 2 .

[0033] Illustrations: 1. Machine body; 2. Control panel; 3. Screening assembly; 31. Finished product box; 32. Defective product box; 33. Support column; 34. Fixing frame; 35. Single-axis servo motor; 36. Clamping plate; 37. Screening plate; 4. Primary inspection assembly; 41. Upright pole; 42. Connecting seat; 43. Horizontal plate; 44. Camera inspection device one; 45. Machine head; 46. Limiting plate; 47. Shaft; 48. Slider; 49. Sliding bracket; 410. Ring light; 5. Rotating assembly; 51 51. Track platform; 52. Slide rail; 53. Fixed slide table; 54. Moving slide table; 55. Mounting platform; 56. Stepper motor; 57. Fixed sponge roller; 58. Connecting block; 59. Moving frame; 510. Push rod; 511. Guide table; 512. Guide rail; 513. Moving sponge roller; 514. Discharge port; 6. Secondary detection assembly; 61. Light source bracket; 62. Surface light source; 63. Vertical shaft; 64. Adapter block; 65. Connecting platform; 66. Mounting base; 67. Camera detection equipment II. Detailed Implementation

[0034] To make the utility model's objectives, features, and advantages more apparent and understandable, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0035] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0036] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0037] Please see Figures 1-10 This utility model provides a multi-dimensional defect detection and screening machine for pins, including a machine body 1 and a control panel 2 installed on the outer wall of the machine body 1. A primary detection component 4 is installed on the top wall of the machine body 1 for detecting the diameter, straightness, length, chamfer angle, line length, and surface defects of the pins. A secondary detection component 6 is installed at the rear of the top wall of the machine body 1 for detecting and processing the inner hole size and state of the pins. A sieving component 3 is installed on the top wall of the machine body 1 for classifying the pins after detection into OK and NG samples based on the detection results. A rotating component 5 is installed on the top wall of the sieving component 3 to control the rotation of the pins and cooperate with the detection.

[0038] In this implementation scheme, the electrical control equipment of the entire device is controlled by the control panel 2 to work in a coordinated manner. The primary detection component 4 and the secondary detection component 6 are used to detect and identify the specifications and defects of the pin shaft. During the detection process, the rotating component 5 is used to rotate slowly to complete 360° rotation without blind spots for visual image acquisition and detection. After the detection is completed, the pin shaft is separated by the rotating component 5 and falls into the screening component 3. The fallen pin shaft is distinguished according to the detection results.

[0039] Specifically, the primary inspection component 4 includes a vertical rod 41 fixedly installed on the top wall of the body 1. A connecting seat 42 is provided on the top wall of the vertical rod 41. A horizontal plate 43 is installed on the outer wall of the connecting seat 42. A camera inspection device 44 for detecting surface defects and length specifications of the pin is fixedly installed inside the horizontal plate 43. A head 45 for identifying the pin is installed at the bottom of the camera inspection device 44. A limiting plate 46 is fixedly installed at the bottom of the horizontal plate 43. The inner wall of the limiting plate 46 fits against the outer wall of the head 45. A shaft 47 is fixedly installed on the outer wall of the vertical rod 41. A slider 48 is installed on the outer wall of the shaft 47. A sliding bracket 49 is fixedly installed on the side wall of the slider 48. A ring light 410 for supplementing the light source of the pin to be inspected is installed at the bottom of the sliding bracket 49.

[0040] In this embodiment, the upright 41, connecting seat 42 and horizontal plate 43 can provide stable support for the camera inspection device 44, and together with the camera head 45, they can perform visual image inspection of the pin surface. During the inspection process, the ring light 410 can provide supplementary lighting control for the pin, making the camera inspection device 44 and the camera head 45 more clearly identify defects on the pin surface.

[0041] Specifically, the secondary detection component 6 includes a light source bracket 61 fixedly installed on the front of the top wall of the machine body 1, a surface light source 62 for supplementing light to the pin end face position is fixedly installed on the outer wall of the light source bracket 61, a vertical shaft 63 is fixedly installed on the rear of the top wall of the machine body 1, and an adapter block 64 is fixedly installed on the outer wall of the vertical shaft 63.

[0042] In this embodiment, the light source bracket 61 is used to provide stable support for the surface light source 62, and supplementary light is provided through the internal center of the pin shaft of the surface light source 62, which can assist the camera detection device 67 in using visual algorithms to analyze whether there is any blockage in the hollow part of the product.

[0043] Specifically, a connecting platform 65 is fixedly installed on the outer wall of the adapter block 64 via an optical axis, a mounting base 66 is fixedly installed on the side wall of the connecting platform 65, and a camera detection device 67 for detecting whether the pin shaft is blocked in diameter and center state is fixedly installed on the inner wall of the mounting base 66. The position of the camera detection device 67 is adapted to the position of the surface light source 62.

[0044] In this embodiment, the adapter block 64, the connecting platform 65, and the mounting base 66 can provide stable support for the camera testing equipment 67 and can measure the diameter of the pin and monitor its hollow state.

[0045] Specifically, the screening component 3 includes two support columns 33 arranged symmetrically front to back and installed on the top wall of the body 1. The top wall of the support column 33 is fixedly connected to the bottom wall of the rotating component 5. A fixing frame 34 is fixedly installed on the outer wall of the support column 33 located at the rear, and a single-axis servo motor 35 is fixedly installed on the inner wall of the fixing frame 34.

[0046] In this embodiment, the coordinated operation of the support column 33 and the fixing frame 34 enables the stable installation of the single-axis servo motor 35 and provides stable support for the rotating component 5.

[0047] Specifically, the power shaft of the single-axis servo motor 35 is fixedly installed with a clamping plate 36 through a bearing through a fixing bracket 34. A screening plate 37 for tilting and screening the tested pins is fixedly installed on the inner wall of the clamping plate 36. A finished product box 31 is set on the top wall of the machine body 1 and on the left side of the clamping plate 36, and a defective product box 32 is set on the top wall of the machine body 1 and on the right side of the clamping plate 36.

[0048] In this embodiment, the screening component 3 can control the tilting direction of the screening plate 37 according to the detection results. The single-axis servo motor 35 drives the clamping plate 36 and the screening plate 37 to rotate and tilt to the position of the finished product box 31 or the defective product box 32. The motion control logic for OK and NG samples completes the screening of the pin shaft.

[0049] Specifically, the rotating assembly 5 includes a track platform 51 fixedly installed on the top wall of the supporting column 33. Slide rails 52 are installed on both the front and rear parts of the top wall of the track platform 51. A fixed slide table 53 is installed on the left side of the outer wall of the slide rail 52, and a movable slide table 54 is installed on the right side of the outer wall of the slide rail 52. Mounting platforms 55 are fixedly installed on the top walls of both the movable slide table 54 and the fixed slide table 53.

[0050] In this embodiment, the track table 51 is used to support and install the entire rotating assembly 5. The movable slide table 54 can drive the mounting table 55 to slide linearly on the slide rail 52, thereby controlling the movable sponge roller 513 to move closer to / away from the fixed sponge roller 57, so as to realize the dropping and discharge of the pin after detection.

[0051] Specifically, a fixed sponge roller 57 is rotatably mounted between mounting platforms 55 on the fixed slide table 53, and a movable sponge roller 513 is rotatably mounted between mounting platforms 55 on the movable slide table 54. Stepper motors 56 are fixedly mounted on the outer walls of both the movable slide table 54 and the fixed slide table 53. The power shaft of the stepper motor 56 passes through the mounting platform 55 via bearings and is fixedly connected to the corresponding fixed sponge roller 57 and movable sponge roller 513 roller shafts.

[0052] In this embodiment, the stepper motor 56 drives the moving sponge roller 513 and the fixed sponge roller 57 to rotate, which in turn rotates the pin shaft, allowing it to rotate 360° without blind spots for visual image acquisition and inspection, avoiding the problem of blind spots in inspection and optimizing the inspection process of the pin shaft.

[0053] Specifically, the top wall of the track platform 51 has a discharge port 514, a guide rail 512 is installed on the right side of the top wall of the track platform 51, a push rod 510 is installed on one side of the guide rail 512, a guide table 511 is slidably installed on the outer wall of the guide rail 512, and the movable end of the push rod 510 is fixedly connected to the guide table 511.

[0054] In this embodiment, after the moving sponge roller 513 and the fixed sponge roller 57 separate, the pin falls from between the two and enters the screening assembly 3 through the feed port 514 for screening. The specific control method is as follows: the extension and retraction of the movable end of the push rod 510 drives the guide table 511 to slide on the outer wall of the guide rail 512.

[0055] Specifically, a movable frame 59 is fixedly installed on the top wall of the guide table 511, and a connecting block 58 is fixedly installed on the side wall of the movable frame 59 at the position corresponding to the movable slide table 54. The outer wall of the connecting block 58 is fixedly connected to the corresponding movable slide table 54.

[0056] In this embodiment, when the guide table 511 moves, it will drive the moving frame 59, the connecting block 58 and the moving slide table 54 to move, thereby controlling the moving sponge roller 513 to move away from the fixed sponge roller 57 to achieve the falling after the pin shaft rotation detection.

[0057] The working principle of this device is as follows: The single-axis servo motor 35, camera detection device 1 44, machine head 45, ring light 410, slide rail 52, moving slide table 54, stepper motor 56, push rod 510, surface light source 62 and camera detection device 2 67 are electrically connected through the control panel 2, so that the signal output terminal of the control panel 2 is connected to the signal receiving terminal of the above components. At the same time, the fixed sponge roller 57 and the moving sponge roller 513 are located at the feeding port of the vibrating plate.

[0058] When performing multi-dimensional inspection and screening of the pins, the specific steps are as follows;

[0059] Activating the primary detection component 4 and the secondary detection component 6 will provide stable support for the horizontal plate 43 by the upright 41 and the connecting seat 42, allowing the camera detection device 44 and the head 45 to work stably within the horizontal plate 43 and the limiting plate 46. With the cooperation of the camera detection device 44 and the head 45, the length specifications and surface defects of the pin can be quickly identified and defects detected.

[0060] Meanwhile, the slider 48 and sliding bracket 49 on the shaft 47 can control the position of the ring light 410, which is located at the bottom of the machine head 45 and is concentric with it, so that the ring light 410 can provide supplementary light source for the machine head 45 during the inspection work.

[0061] The surface light source 62 on the light source bracket 61 provides supplementary light source for the inside of the pin shaft. The vertical shaft 63 and the adapter block 64 stably position the camera detection device 67 installed in the mounting base 66. At the same time, the position of the camera detection device 67 is adapted to the surface light source 62. The diameter of the pin shaft and whether there is any blockage in the internal hollow state can be identified by the camera detection device 67.

[0062] When the pin on the vibratory plate falls between the fixed sponge roller 57 and the moving sponge roller 513, the stepper motor 56 is started to control the rotation of the fixed sponge roller 57 and the moving sponge roller 513, thereby driving the pin to turn between the fixed sponge roller 57 and the moving sponge roller 513.

[0063] The rotating pin surface is precisely identified and its length is measured by camera inspection device 44 and camera head 45. At the same time, camera inspection device 67 identifies the hollow state of the rotating pin to detect whether there is any blockage and measures the diameter of the pin. After the inspection is completed, the results are fed back to control panel 2.

[0064] If no abnormality is detected, the single-axis servo motor 35 on the fixed frame 34 is activated to drive the clamping plate 36 and the screening plate 37 to tilt towards the finished product box 31. If an abnormality is detected, the clamping plate 36 and the screening plate 37 are controlled to tilt towards the defective product box 32.

[0065] The start push rod 510 controls the guide table 511 to slide on the guide rail 512, and controls the moving frame 59 to drive the connecting block 58 and the moving slide table 54 to slide on the outer wall of the slide rail 52. This causes the moving slide table 54 to move the mounting table 55 and the moving sponge roller 513 away from the position of the fixed sponge roller 57. This causes the pin to fall from between the fixed sponge roller 57 and the moving sponge roller 513, pass through 514, and then contact the screening plate 37. The pin then falls into the finished product box 31 or the defective product box 32 according to the inclination direction of the screening plate 37.

[0066] The control panel 2 controls the operation of the entire device's electrical control equipment, as well as the reception and feedback of logic signals. Combined with the screening component 3, the primary detection component 4, the rotating component 5, and the secondary detection component 6, the pin shaft is inspected for its length and diameter specifications. It also performs thorough inspection and identification of surface defects such as bumps and scratches, and whether there are any blockages in the internal hollow structure. Finally, the pin shaft can be classified and screened based on the inspection results.

[0067] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-dimensional defect detection and screening machine for pin shafts, comprising a machine body (1) and a control panel (2) installed on the outer wall of the machine body (1), characterized in that: The top wall of the machine body (1) is equipped with a primary detection component (4) for detecting the pin shaft specifications and surface defects. The rear part of the top wall of the machine body (1) is equipped with a secondary detection component (6) for detecting the pin shaft diameter and internal hollow state. The top wall of the machine body (1) is equipped with a sieving component (3) for classifying the pin shaft after detection into OK and NG samples based on the detection results. The top wall of the sieving component (3) is equipped with a rotating component (5) for controlling the pin shaft to rotate and cooperate with the detection.

2. The multi-dimensional defect detection and screening machine for pin shafts according to claim 1, characterized in that: The first-level detection component (4) includes a pole (41) fixedly installed on the top wall of the body (1). A connecting seat (42) is provided on the top wall of the pole (41). A horizontal plate (43) is installed on the outer wall of the connecting seat (42). A camera detection device (44) for detecting pin surface defects and length specifications is fixedly installed inside the horizontal plate (43). A head (45) for identifying pins is installed at the bottom of the camera detection device (44). A limiting plate (46) is fixedly installed at the bottom of the horizontal plate (43). The inner wall of the limiting plate (46) is in contact with the outer wall of the head (45). A shaft (47) is fixedly installed on the outer wall of the pole (41). A slider (48) is installed on the outer wall of the shaft (47). A sliding bracket (49) is fixedly installed on the side wall of the slider (48). A ring light (410) for supplementing the light source of the pin to be inspected is installed at the bottom of the sliding bracket (49).

3. The multi-dimensional defect detection and screening machine for pin shafts according to claim 1, characterized in that: The secondary detection component (6) includes a light source bracket (61) fixedly installed on the front of the top wall of the body (1), a surface light source (62) for supplementing light to the pin end face position is fixedly installed on the outer wall of the light source bracket (61), a vertical shaft (63) is fixedly installed on the rear of the top wall of the body (1), and an adapter block (64) is fixedly installed on the outer wall of the vertical shaft (63).

4. The multi-dimensional defect detection and screening machine for pin shafts according to claim 3, characterized in that: The outer wall of the adapter block (64) is fixedly mounted with a connecting platform (65) via an optical axis. The side wall of the connecting platform (65) is fixedly mounted with a mounting base (66). The inner wall of the mounting base (66) is fixedly mounted with a camera detection device (67) for detecting whether the pin shaft is blocked in diameter and center state. The position of the camera detection device (67) is adapted to the position of the surface light source (62).

5. The multi-dimensional defect detection and screening machine for pin shafts according to claim 1, characterized in that: The screening component (3) includes two support columns (33) symmetrically arranged front and back and installed on the top wall of the body (1). The top wall of the support column (33) is fixedly connected to the bottom wall of the rotating component (5). A fixing frame (34) is fixedly installed on the outer wall of the support column (33) located at the rear. A single-axis servo motor (35) is fixedly installed on the inner wall of the fixing frame (34).

6. The multi-dimensional defect detection and screening machine for pin shafts according to claim 5, characterized in that: The power shaft of the single-axis servo motor (35) is fixedly installed with a clamping plate (36) through a bearing through a fixing frame (34). A screening plate (37) for tilting and screening the tested pins is fixedly installed on the inner wall of the clamping plate (36). A finished product box (31) is provided on the top wall of the machine body (1) and on the left side of the clamping plate (36). A defective product box (32) is provided on the top wall of the machine body (1) and on the right side of the clamping plate (36).

7. The multi-dimensional defect detection and screening machine for pin shafts according to claim 1, characterized in that: The rotating assembly (5) includes a track platform (51) fixedly installed on the top wall of the support column (33). The track platform (51) has slide rails (52) installed on both the front and rear sides of its top wall. A fixed slide table (53) is installed on the left side of the outer wall of the slide rail (52), and a movable slide table (54) is installed on the right side of the outer wall of the slide rail (52). The top walls of the movable slide table (54) and the fixed slide table (53) are both fixedly installed with mounting platforms (55).

8. A multi-dimensional defect detection and screening machine for pin shafts according to claim 7, characterized in that: A fixed sponge roller (57) is rotatably mounted between mounting platforms (55) on the fixed slide (53), and a movable sponge roller (513) is rotatably mounted between mounting platforms (55) on the movable slide (54). A stepper motor (56) is fixedly mounted on the outer wall of both the movable slide (54) and the fixed slide (53). The power shaft of the stepper motor (56) passes through the mounting platform (55) through a bearing and is fixedly connected to the roller shaft of the corresponding fixed sponge roller (57) and movable sponge roller (513).

9. A multi-dimensional defect detection and screening machine for pin shafts according to claim 7, characterized in that: The top wall of the track platform (51) is provided with a discharge port (514). A guide rail (512) is installed on the right side of the top wall of the track platform (51). A push rod (510) is installed on one side of the guide rail (512). A guide platform (511) is slidably installed on the outer wall of the guide rail (512). The movable end of the push rod (510) is fixedly connected to the guide platform (511).

10. A multi-dimensional defect detection and screening machine for pin shafts according to claim 9, characterized in that: A movable frame (59) is fixedly installed on the top wall of the guide platform (511). A connecting block (58) is fixedly installed on the side wall of the movable frame (59) at the position corresponding to the movable slide (54). The outer wall of the connecting block (58) is fixedly connected to the corresponding movable slide (54).

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