An automated device for detecting the outside dimensions of a stepped shaft

Abstract

The utility model discloses a kind of automatic device of detecting stepped shaft appearance size, including base, and base is equipped with: transfer conveying component, for transporting measured workpiece to feeding point, and transporting qualified workpiece to discharge point;Size detection device, the appearance size of workpiece is measured;Appearance detection device, the appearance defect of workpiece is detected;Manual intervention conveying component, workpiece is transported to safety detection point, waits for manual inspection confirmation;Re -work conveying component, for re -work conveying of unqualified workpiece;Automatic handling workpiece is carried out between each equipment by the clamping robot installed on base. Realize detection process automation, improve detection efficiency: integration multidimensional detection, guarantee detection comprehensiveness: set up multi-path processing mechanism, improve detection flexibility: detection precision is high, satisfy stepped shaft detection demand.

Description

Technical Field

[0001] This utility model relates to the field of appearance inspection technology, and in particular to an automated device for inspecting the appearance dimensions of stepped shafts. Background Technology

[0002] In fields such as precision machinery, aerospace, and medical devices, small stepped shafts serve as critical transmission or connecting components. Their dimensional accuracy, such as the diameter of each stepped segment, height difference, coaxiality, and spherical SR value, along with their appearance quality, such as surface scratches, dents, burrs, and corrosion, directly impact the assembly accuracy and service life of the entire machine. However, current inspection processes for small stepped shafts still face numerous technical bottlenecks, making it difficult to meet the demands of efficient, precise, and automated production. Specific problems include: 1. Extremely low efficiency of manual inspection, unable to meet mass production requirements. The structural characteristics of small stepped shafts dictate complex inspection dimensions—requiring simultaneous measurement of the height differences of multiple stepped surfaces; 2. Poor stability of inspection accuracy, leading to significant quality risks. The minute dimensions and complex structure of small stepped shafts demand extremely high inspection accuracy, but manual inspection suffers from significant dimensional measurement errors, high rates of missed defects, and insurmountable limitations due to inconsistent judgment standards. In summary, there is an urgent need for a method that enables automated loading and unloading and high-precision multi-dimensional inspection of small stepped shafts to address the problems of low efficiency and poor accuracy in manual inspection. Utility Model Content

[0003] This invention addresses the problems of low efficiency and poor accuracy in manual inspection by providing an automated device for inspecting the external dimensions of stepped shafts, enabling automated loading and unloading and high-precision multidimensional inspection.

[0004] This utility model provides the following technical solution: an automated device for detecting the external dimensions of a stepped shaft, comprising a base, on which are arranged a transfer station, a dimension detection station, an appearance detection station, an intervention conveying station, and a rework conveying station; the transfer station is equipped with a transfer conveying component for transporting the workpiece to be tested to the loading point and transporting qualified workpieces to the unloading point; the dimension detection station is equipped with a dimension detection device for measuring the external dimensions of the workpiece; the appearance detection station is equipped with an appearance detection device for detecting appearance defects of the workpiece; the intervention conveying station is equipped with a manual intervention conveying component for transporting the workpiece to a safety inspection point for manual inspection and confirmation; the rework conveying station is equipped with a rework conveying component for reworking unqualified workpieces; the workpieces are automatically transported between the various stations by a clamping robot installed on the base.

[0005] In some embodiments, the transfer conveying assembly includes a feeding slide and a discharging slide. The feeding slide includes a feeding screw, a feeding slider, and a feeding tray. The feeding slider is threaded onto the feeding screw, and the feeding tray is fixed onto the feeding slider. The rotational motion of the feeding screw is converted into the lateral movement of the feeding tray driven by the feeding slider. The discharging slide includes a discharging screw, a discharging slider, and a discharging tray. The discharging slider is threaded onto the discharging screw, and the discharging tray is fixed onto the discharging slider. The rotational motion of the discharging screw is converted into the lateral movement of the discharging tray driven by the discharging slider.

[0006] In some embodiments, the dimensional inspection device includes a flash meter and a support platform. The flash meters are respectively located at the left and right ends of the support platform, and the dimensional inspection station is located at the midpoint of the support platform. When the workpiece is placed on the dimensional inspection station, the flash meters at both ends inspect the workpiece.

[0007] In some embodiments, an installation platform and a rotary motor are installed on the dimensional inspection station. The installation platform is provided with a dimensional receiving component for accommodating the workpiece. The dimensional receiving component is provided with a receiving cavity for accommodating the workpiece. The workpiece is inserted into the receiving cavity. The output shaft of the rotary motor is connected to the dimensional receiving component and is coaxially arranged. The receiving cavity is coaxially arranged with the dimensional receiving component. The rotary motor drives the dimensional receiving component to rotate around its central axis.

[0008] In some embodiments, the appearance inspection device includes a measuring support, an adjustment assembly, a camera, a telecentric macro lens, and an inspection mounting base. The camera and the telecentric macro lens are mounted on the measuring support via the adjustment assembly, and the camera, the telecentric macro lens, and the inspection mounting base are arranged coaxially from top to bottom.

[0009] In some embodiments, the adjustment assembly includes a vertical slide and a vertical adjustment slider. The slide rail of the vertical slide engages with the slide groove of the vertical adjustment slider, allowing the vertical adjustment slider to move vertically up and down on the vertical slide. The camera and the telecentric macro lens are respectively fixed at the upper and lower ends of the vertical adjustment slider.

[0010] In some embodiments, the adjustment assembly includes a horizontal slide and a horizontal adjustment slider. The slide rail of the horizontal slide cooperates with the slide groove of the horizontal adjustment slider, so that the horizontal adjustment slider can move horizontally on the horizontal slide. The vertical slide is fixed on the horizontal adjustment slider, and the horizontal slide is fixed on the measuring support.

[0011] In some embodiments, the appearance inspection device includes a position adjustment slider, which includes an adjustment screw and an adjustment slider. The inspection mounting base is fixed on the adjustment slider, and the rotational movement of the adjustment screw is converted into the lateral movement of the inspection mounting base driven by the adjustment slider.

[0012] In some embodiments, the output end of the gripping robot is provided with gripping claws for gripping workpieces.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] I. Automated Inspection Process, Improved Inspection Efficiency: The system features multiple functional stations, including transfer stations, dimensional inspection stations, and appearance inspection stations, and utilizes a clamping robot to automatically transport workpieces between these stations, forming a complete automated inspection process. No manual intervention is required for workpiece transfer, significantly reducing the time cost of workpiece handling and transfer in traditional manual inspection, and substantially improving the inspection efficiency of stepped shafts. This is particularly suitable for the high-efficiency quality inspection needs in mass production scenarios.

[0015] II. Integrated multi-dimensional inspection to ensure comprehensive inspection: The system integrates dimensional inspection and appearance inspection functions. The dimensional inspection station uses a flash meter and a rotatable dimensional container to accurately measure the workpiece dimensions from multiple angles, ensuring the accuracy of dimensional parameters. The appearance inspection station uses equipment such as cameras and telecentric macro lenses to clearly capture minute defects on the workpiece surface, such as scratches, dents, and burrs. The combination of the two achieves comprehensive inspection of the workpiece's "dimensional accuracy + appearance quality", avoiding the limitations of a single inspection dimension.

[0016] 3. Setting up a multi-path processing mechanism to improve the flexibility of inspection: The system not only includes the unloading path of qualified workpieces and the rework conveying path of unqualified workpieces, but also adds a manual intervention conveying station. When the automated inspection is abnormal or requires secondary confirmation, the workpiece can be transferred to a safe inspection point for manual review, avoiding the risk of misjudgment that may occur in automated inspection. At the same time, it provides a flexible solution for the handling of special workpieces, taking into account both automation efficiency and inspection accuracy.

[0017] IV. High Detection Accuracy, Meeting the Detection Requirements of Stepped Shafts: In view of the characteristics of stepped shafts, the system adopts high-precision detection equipment: Dimensional detection uses a flash measuring instrument, combined with a rotating dimensional housing, to achieve non-contact and rapid dimensional measurement with an accuracy of up to the micrometer level. Appearance inspection uses a combination of a telecentric macro lens and a camera, which can clearly image the surface details of the stepped shaft, ensuring that no minute defects are missed, thus guaranteeing the high-precision detection requirements of stepped shafts and meeting the quality standards of the precision manufacturing field. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0021] Figure 3 This is a schematic diagram of the structure of the transfer and conveying component of this utility model;

[0022] Figure 4 This is a schematic diagram of the size detection device of this utility model;

[0023] Figure 5 This is a schematic diagram of the appearance inspection device of this utility model;

[0024] Figure 6 This is a schematic diagram of the clamping robot of this utility model.

[0025] In the diagram: 1. Base; 2. Dimension measuring device; 21. Flash measuring instrument; 22. Support platform; 23. Mounting platform; 24. Rotary motor; 25. Dimension receiving component; 251. Receiving cavity; 3. Appearance inspection device; 31. Measuring support; 32. Adjustment assembly; 321. Vertical slide; 322. Vertical adjustment slider; 323. Horizontal slide; 324. Horizontal adjustment slider; 33. Camera; 34. Telecentric macro lens; 35. 36. Inspection mounting base; 36. Position adjustment slide; 361. Adjusting screw; 362. Adjusting slider; 4. Manually intervened conveying assembly; 5. Transfer conveying assembly; 51. Feeding slide; 511. Feeding screw; 512. Feeding slider; 513. Feeding tray; 52. Unloading slide; 521. Unloading screw; 522. Unloading slider; 523. Unloading tray; 6. Clamping robot; 61. Clamping claw; 7. Rework conveying assembly. Detailed Implementation

[0026] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0027] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.

[0029] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0030] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.

[0031] The technical solutions provided by the various embodiments of this application are described below with reference to the accompanying drawings.

[0032] Please see Figure 1-2 As shown in this embodiment: an automated device for detecting the external dimensions of a stepped shaft includes a base 1, on which are arranged a transfer station, a dimension detection station, an appearance detection station, an intervention conveying station, and a rework conveying station; the transfer station is equipped with a transfer conveying component 5 for transporting the workpiece to be tested to the loading point and the qualified workpiece to the unloading point; the dimension detection station is equipped with a dimension detection device 2 for measuring the external dimensions of the workpiece; the appearance detection station is equipped with an appearance detection device 3 for detecting appearance defects of the workpiece; the intervention conveying station is equipped with a manual intervention conveying component 4 for transporting the workpiece to a safety inspection point for manual inspection and confirmation; the rework conveying station is equipped with a rework conveying component 7 for reworking unqualified workpieces; the workpieces are automatically transported between the various stations by a clamping robot 6 installed on the base 1.

[0033] It should be noted that the safety inspection point is a point that does not obstruct the operation of the equipment and is outside the working range of the clamping robot 6.

[0034] In some embodiments, such as Figure 3As shown, the transfer conveying assembly 5 includes a feeding slide 51 and a discharging slide 52. The feeding slide 51 includes a feeding screw 511, a feeding slider 512, and a feeding tray 513. The feeding slider 512 is threaded onto the feeding screw 511, and the feeding tray 513 is fixed onto the feeding slider 512. The rotational motion of the feeding screw 511 is converted into the lateral movement of the feeding slider 512 driving the feeding tray 513. The discharging slide 52 includes a discharging screw 52... 1. The unloading slider 522 and the unloading tray 523 are threaded onto the unloading screw 521, and the unloading tray 523 is fixed onto the unloading slider 522. The rotational motion of the unloading screw 521 is converted into the lateral motion of the unloading slider 522 driving the unloading tray 523. It should be noted that the loading slider 51 and the unloading slider 52 adopt a separate screw drive structure. The two are driven independently and the motion parameters can be adjusted separately. This adapts to the asynchronous process of "material inlet-inspection-outlet", which is highly flexible.

[0035] In some embodiments, such as Figure 4 As shown, the dimensional inspection device 2 includes a flash meter 21 and a support platform 22. The flash meters 21 are respectively located at the left and right ends of the support platform 22, and the dimensional inspection station is located at the midpoint of the support platform 22. When the workpiece is placed on the dimensional inspection station, the flash meters 21 at both ends inspect the workpiece. It should be noted that dimensional inspection can be performed simultaneously from both sides of the workpiece, and multi-dimensional parameters can be measured synchronously without flipping the workpiece, which greatly shortens the inspection time. The symmetrical layout ensures the uniformity of the inspection benchmark and reduces the positioning error of a single inspection. Combined with the high-precision characteristics of the flash meter 21, the accuracy and consistency of dimensional inspection are further improved. The support platform 22 provides stable support for the workpiece and avoids the workpiece shaking during the inspection process from affecting the measurement accuracy. The overall structure is compact and adaptable to automated inspection processes, effectively improving the efficiency and reliability of dimensional inspection of small workpieces.

[0036] It should be noted that the flash meter model 21 is the VIM-L40C, with a high-precision detection area of ​​ø26mm, a detection area of ​​ø40mm, a high-precision measurement area accuracy of ±2µm, a measurement accuracy of ±3µm, and a repeatability of ±1µm.

[0037] In some embodiments, such as Figure 4As shown, the dimensional inspection station is equipped with an installation platform 23 and a rotary motor 24. The installation platform 23 is provided with a dimensional receiving component 25 for accommodating workpieces. The dimensional receiving component 25 is provided with a receiving cavity 251 for accommodating workpieces. The workpiece is inserted into the receiving cavity 251. The output shaft of the rotary motor 24 is connected to the dimensional receiving component 25 and is coaxially arranged. The receiving cavity 251 is coaxially arranged with the dimensional receiving component 25. The rotary motor 24 drives the dimensional receiving component 25 to rotate around its central axis. It should be noted that the coaxial design of the receiving cavity 251, the dimensional receiving component 25, and the output shaft of the rotary motor 24 ensures the stability of the axis during the rotation of the workpiece and avoids detection deviations caused by eccentric wobbling. The rotary motor 24 drives the workpiece to rotate at multiple angles. With the help of the two-end flash measuring instruments 21, the full circumferential dimensions of the workpiece, such as the diameter of each segment of a stepped shaft and the SR of a spherical surface, can be measured. The continuous detection of values ​​can cover all detection dimensions without manual flipping, improving the comprehensiveness of detection; the plug-in housing structure can not only firmly clamp small workpieces, but also reduce the obstruction of the workpiece surface, ensuring that the flash detector 21 has a sufficient detection field of view. The overall design greatly improves the integrity and accuracy of dimensional detection, and meets the high efficiency requirements of automated detection.

[0038] In some embodiments, such as Figure 5 As shown, the appearance inspection device 3 includes a measuring support 31, an adjustment component 32, a camera 33, a telecentric macro lens 34, and an inspection mounting base 35. The camera 33 and the telecentric macro lens 34 are mounted on the measuring support 31 via the adjustment component 32. The camera 33, the telecentric macro lens 34, and the inspection mounting base 35 are arranged coaxially from top to bottom. It should be noted that the coaxial design ensures that the optical axis of the camera 33 and the optical path of the lens are strictly aligned with the inspection center of the workpiece, avoiding imaging distortion caused by eccentricity and ensuring the clarity and measurement accuracy of appearance defects such as small scratches and burrs. The top-down layout allows light to illuminate the workpiece surface perpendicularly, reducing shadow interference, improving image contrast, and facilitating accurate identification of minute defects. The cooperation between the adjustment component 32 and the measuring support 31 allows for flexible adjustment of the overall inspection height to adapt to the inspection needs of workpieces of different sizes. At the same time, the compact coaxial structure saves space, facilitates collaboration with other equipment, and improves the accuracy, stability, and equipment compatibility of appearance inspection.

[0039] It should be noted that: Camera 33 is a 3.2-megapixel smart camera 33, and the direct-view optical magnification of the telecentric macro lens 34 is x1.73 to x2.20.

[0040] In some embodiments, such as Figure 5As shown, the adjustment assembly 32 includes a vertical slide block 321 and a vertical adjustable slider 322. The slide rail of the vertical slide block 321 cooperates with the slide groove of the vertical adjustable slider 322, allowing the vertical adjustable slider 322 to move vertically up and down on the vertical slide block 321. The camera 33 and the telecentric macro lens 34 are respectively fixed at the upper and lower ends of the vertical adjustable slider 322. It should be noted that the height position of the camera 33 and the telecentric macro lens 34 can be flexibly adjusted to quickly adapt to the appearance inspection needs of small workpieces of different sizes, ensuring that the lens and the workpiece surface maintain the optimal imaging distance. The cooperation between the slide rail and the slide groove makes the adjustment process smooth and precise, avoiding the impact of positional deviation on the image clarity and ensuring the accuracy of appearance defect detection.

[0041] In some embodiments, such as Figure 5 As shown, the adjustment assembly 32 includes a horizontal slide block 323 and a horizontal adjustment slider 324. The slide rail of the horizontal slide block 323 cooperates with the slide groove of the horizontal adjustment slider 324, so that the horizontal adjustment slider 324 can move horizontally on the horizontal slide block 323. The vertical slide block 321 is fixed on the horizontal adjustment slider 324, and the horizontal slide block 323 is fixed on the measuring support 31. It should be noted that the horizontal position of the camera 33 and the telecentric macro lens 34 can be flexibly adjusted.

[0042] In some embodiments, such as Figure 5 As shown, the appearance inspection device 3 includes a position adjustment slider 36, which includes an adjustment screw 361 and an adjustment slider 362. The inspection mounting base 35 is fixed on the adjustment slider 362. The rotational movement of the adjustment screw 361 is converted into the lateral movement of the inspection mounting base 35 driven by the adjustment slider 362. It should be noted that by setting the position adjustment slider 36, the workpiece is automatically moved out of the appearance inspection position when the appearance inspection is finished, which facilitates the gripping of the clamping robot 6 and speeds up the inspection efficiency of the workpiece.

[0043] In some embodiments, such as Figure 6 As shown, the output end of the clamping robot 6 is equipped with a clamping claw 61 for clamping workpieces. It should be noted that the clamping claw 61 can be designed with a clamping surface adapted to the size characteristics of small workpieces to achieve stable gripping of the workpiece and prevent the workpiece from slipping or shifting during transportation. Compared with suction gripping, the clamping method can more reliably fix irregularly shaped workpieces and is less affected by the surface material of the workpiece, with stronger adaptability. The clamping force can be precisely adjusted by the control system, which can ensure stable clamping and avoid workpiece deformation or surface damage due to excessive force, thus ensuring the original state of the workpiece before inspection. At the same time, the clamping claw 61 and the robot's high-precision positioning work together to achieve precise transfer of workpieces between various inspection stations and conveying mechanisms, improving the stability and efficiency of automated flow.

[0044] It should be noted that the clamping claw 61 consists of two symmetrically arranged sliding plates, which can move in opposite directions to adjust the clamping distance.

[0045] It should be noted that the gripping robot 6 is a SCARA robot with a planar repeatability of ±0.025mm, a vertical repeatability of ±0.01mm, a rotational accuracy of ±0.01°, a maximum load of 10kg, and a maximum reach of 1000mm.

[0046] It should be noted that both the manual intervention conveying component 4 and the rework conveying component 7 are conveying components that use a combination of lead screw and slider.

[0047] It should be noted that the power source for the regulating component 32 and each conveying component is an external motor.

[0048] The same or similar parts between the various embodiments in this specification can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments.

[0049] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An automated device for detecting the external dimensions of a stepped shaft, comprising a base (1), characterized in that, The base (1) is equipped with a transfer station, a size inspection station, an appearance inspection station, an intervention conveying station, and a rework conveying station; The transfer station is equipped with a transfer conveyor assembly (5) for transporting the workpiece to be tested to the loading point and the qualified workpiece to the unloading point; The dimension detection station is equipped with a dimension detection device (2) to measure the appearance dimensions of the workpiece; The appearance inspection station is equipped with an appearance inspection device (3) to detect appearance defects of the workpiece; The intervention conveying station is equipped with a manual intervention conveying component (4) to transport the workpiece to the safety inspection point for manual inspection and confirmation. The rework conveying station is equipped with a rework conveying assembly (7) for conveying defective workpieces for rework. Workpieces are automatically transported between each workstation via a clamping robot (6) mounted on a base (1).

2. The automated device for detecting the external dimensions of a stepped shaft according to claim 1, characterized in that, The transfer conveying assembly (5) includes a loading slide (51) and a unloading slide (52). The loading slide (51) includes a loading screw (511), a loading slider (512), and a loading tray (513). The loading slider (512) is threaded onto the loading screw (511), and the loading tray (513) is fixed onto the loading slider (512). The rotational motion of the loading screw (511) is converted into the loading slider (512) driving the unloading slide. Lateral movement of the loading tray (513); the unloading slide (52) includes an unloading screw (521), an unloading slider (522) and an unloading tray (523). The unloading slider (522) is threaded onto the unloading screw (521), and the unloading tray (523) is fixed onto the unloading slider (522). The rotational movement of the unloading screw (521) is converted into the lateral movement of the unloading slider (522) driving the unloading tray (523).

3. The automated device for detecting the external dimensions of a stepped shaft according to claim 1, characterized in that, The dimension detection device (2) includes a flash meter (21) and a support platform (22). The flash meter (21) is located at the left and right ends of the support platform (22), and the dimension detection station is located at the midpoint of the support platform (22). When the workpiece is placed on the dimension detection station, the flash meters (21) at both ends detect the workpiece.

4. The automated device for detecting the external dimensions of a stepped shaft according to claim 3, characterized in that, The dimension inspection station is equipped with an installation platform (23) and a rotary motor (24). The installation platform (23) is provided with a dimension receiving component (25) for accommodating the workpiece. The dimension receiving component (25) is provided with a receiving cavity (251) for accommodating the workpiece. The workpiece is inserted into the receiving cavity (251). The output shaft of the rotary motor (24) is connected to the dimension receiving component (25) and is coaxially arranged. The receiving cavity (251) and the dimension receiving component (25) are coaxially arranged. The rotary motor (24) drives the dimension receiving component (25) to rotate around its central axis.

5. An automated device for detecting the external dimensions of a stepped shaft according to claim 1, characterized in that, The appearance inspection device (3) includes a measuring support (31), an adjustment component (32), a camera (33), a telecentric macro lens (34), and an inspection mounting base (35). The camera (33) and the telecentric macro lens (34) are mounted on the measuring support (31) through the adjustment component (32). The camera (33), the telecentric macro lens (34), and the inspection mounting base (35) are arranged coaxially from top to bottom.

6. The automated device for detecting the external dimensions of a stepped shaft according to claim 5, characterized in that, The adjustment assembly (32) includes a vertical slide (321) and a vertical adjustment slider (322). The slide rail of the vertical slide (321) cooperates with the slide groove of the vertical adjustment slider (322) so that the vertical adjustment slider (322) moves vertically up and down on the vertical slide (321). The camera (33) and the telecentric macro lens (34) are respectively fixed at the upper and lower ends of the vertical adjustment slider (322).

7. An automated device for detecting the external dimensions of a stepped shaft according to claim 6, characterized in that, The adjustment assembly (32) includes a horizontal slide (323) and a horizontal adjustment slider (324). The slide rail of the horizontal slide (323) cooperates with the slide groove of the horizontal adjustment slider (324) so ​​that the horizontal adjustment slider (324) moves horizontally on the horizontal slide (323). The vertical slide (321) is fixed on the horizontal adjustment slider (324), and the horizontal slide (323) is fixed on the measuring support (31).

8. An automated device for detecting the external dimensions of a stepped shaft according to claim 5, characterized in that, The appearance inspection device (3) includes a position adjustment slider (36), which includes an adjustment screw (361) and an adjustment slider (362). The inspection mounting base (35) is fixed on the adjustment slider (362). The rotational motion of the adjustment screw (361) and the adjustment slider (362) is converted into the lateral motion of the inspection mounting base (35) driven by the adjustment slider (362).

9. An automated device for detecting the external dimensions of a stepped shaft according to claim 1, characterized in that, The output end of the clamping robot (6) is provided with a clamping claw (61) for clamping workpieces.

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