A surface run-out detection device
The surface runout detection device, designed with floating connectors and linkage mechanisms, solves the problems of poor measurement accuracy and insufficient versatility of existing equipment, achieving high-precision and rapid multi-dimensional detection, and improving the detection efficiency and maintainability of the equipment.
Patent Information
- Application Number
- CN202611460389.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-09-20
- Publication Date
- 2026-11-03
AI Technical Summary
Existing surface runout testing equipment suffers from poor measurement accuracy and high wear rate due to direct contact with the surface being tested. Furthermore, it is difficult to meet the automated testing needs of multi-axis and multi-platform products, resulting in low testing efficiency and poor equipment versatility.
It adopts a floating connector and linkage mechanism design, and uses elastic restoring force to keep the contact head in elastic contact with the surface to be measured. Combined with multiple sensors and modular power supply interface, it can achieve precise measurement of the end face and radial runout of rotating parts, and supports rapid assembly and disassembly.
It improves the repeatability and long-term stability of test data, increases testing efficiency and equipment versatility, reduces equipment wear and cable entanglement risks, and enhances equipment maintainability.
Smart Images
Figure CN123028548A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mechanical manufacturing technology, and in particular to a surface runout detection device. Background Technology
[0002] In precision manufacturing fields such as automotive parts and aerospace, the assembly quality of rotating parts such as interface flanges or gear shafts in assemblies like gearboxes and housings is crucial. To ensure working accuracy, reduce vibration and noise, and extend service life, it is usually necessary to rigorously test the end face runout and radial runout of these rotating parts.
[0003] Existing equipment typically involves the testing mechanism directly contacting the surface of the workpiece to be tested, resulting in poor measurement accuracy and high equipment wear rate. Summary of the Invention
[0004] This application discloses a surface runout detection device for improving the detection accuracy of end runout and radial runout.
[0005] To achieve the above objectives, this application provides the following technical solution: In a first aspect, this application provides a surface runout detection device, comprising: A support platform is used to support the workpiece to be tested. The first driving mechanism is used to drive the rotating part of the workpiece to be measured to rotate. Testing organizations, including testing components; The detection and mating mechanism includes a base plate, a clamping assembly, and a linkage mechanism. The clamping assembly is fixedly connected to the base plate. The linkage mechanism includes a linkage body, a contact head, and a floating connector. The linkage body is hinged to the base plate. The floating connector connects the base plate and the linkage body. The contact head is disposed on the linkage body. The clamping assembly is detachably connected to the rotating part. When the clamping assembly is connected to the rotating part, the detection and mating mechanism rotates synchronously with the rotating part. Under the action of the elastic restoring force, the floating connector causes the contact of the linkage mechanism to abut against the surface of the workpiece to be tested, and the detection probe of the detection assembly abuts against the linkage mechanism.
[0006] In some embodiments, the detection mechanism further includes a first mounting bracket, and the detection component includes a first detection sensor mounted on the first mounting bracket; The linkage mechanism includes a first linkage, which includes a first linkage body, a first contact head, and a first floating connector. The first linkage body is hinged to a substrate, the first floating connector connects the substrate and the first linkage body, the first contact head is disposed on the first linkage body, and the first floating connector causes the first contact head to abut against the surface to be measured under the action of elastic restoring force. The detection probe of the first detection sensor abuts against the first linkage body.
[0007] In some embodiments, the detection assembly further includes a second detection sensor disposed on the first mounting bracket, wherein the detection probe of the second detection sensor is angled relative to the detection probe of the first detection sensor. The linkage mechanism includes a second linkage, which includes a second linkage body, a second contact head, and a second floating connector. The second linkage body is hinged to a base plate, and the second floating connector connects the base plate and the second linkage body. The second contact head is disposed on the second linkage body. Under the action of elastic restoring force, the second floating connector causes the second contact head to abut against the inner hole wall and / or outer peripheral wall of the workpiece to be tested. The detection probe of the second detection sensor abuts against the second linkage body.
[0008] In some embodiments, the surface runout detection device further includes a positioning structure disposed between the substrate and the first mounting bracket.
[0009] In some embodiments, the clamping assembly includes an inner clamping sleeve, which has a tightened state and a retracted state. When the inner clamping sleeve is in a tightened state, the outer wall of the inner clamping sleeve is interference-fitted with the insertion hole of the rotating part, the contact contact of the linkage mechanism is in contact with the test surface of the workpiece to be tested, and the first driving mechanism is in driving cooperation with the inner clamping sleeve to drive the contact contact of the linkage mechanism to rotate relative to the test surface. When the inner clamping sleeve is in the retracted state, the detection and mating mechanism can be separated from the workpiece to be tested.
[0010] In some embodiments, the floating connector includes a connecting spring, one end of which is hooked to the base plate and the other end of which is hooked to the connecting rod body.
[0011] In some embodiments, the detection mechanism further includes a first power supply connector, which includes a first plug terminal and is electrically connected to the detection component.
[0012] In some embodiments, the surface runout detection device further includes: frame; The second drive mechanism connects the frame and the detection mechanism to drive the detection mechanism to move relative to the frame; the second drive mechanism is provided with a second power supply connector, and the second power supply structure is electrically connected to the first power supply connector.
[0013] In some embodiments, the second drive mechanism includes a first sliding frame, a second sliding frame, a drive member, and a gripper mechanism; The first sliding frame is slidably disposed on the frame along the first direction; The second sliding frame is slidably disposed on the first sliding frame along the second direction; A driving component is disposed between the first sliding frame and the second sliding frame to drive the second sliding frame to slide along the second direction; The gripper mechanism is located on the second sliding frame and is used to clamp the detection mechanism. The second power supply connector is located on the second sliding frame.
[0014] In some embodiments, the surface runout detection device includes multiple detection mating mechanisms, which are correspondingly installed on different rotating parts of the same workpiece to be tested; and / or, multiple detection mating mechanisms are correspondingly installed on different rotating parts of different workpieces to be tested. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of a surface runout detection device provided in an embodiment of this application; Figure 2 for Figure 1 A magnified structural diagram of point A of the surface runout detection device; Figure 3 A first-view perspective three-dimensional structural diagram of the detection mechanism of the surface runout detection device provided in the application embodiment; Figure 4 for Figure 3 A two-dimensional structural diagram of the testing agency from a second perspective; Figure 5 for Figure 1 A magnified structural diagram of point B of the surface runout detection device; Figure 6 A first-view perspective three-dimensional structural diagram of the detection and mating mechanism of the surface runout detection device provided in the application embodiment; Figure 7 for Figure 6 A two-dimensional structural diagram of the detection and cooperation mechanism from a second perspective; Figure 8 A three-dimensional structural schematic diagram of the second drive mechanism of the surface runout detection device provided in the application embodiment.
[0016] Figure label: 10-Surface runout detection device; 100-Supporting platform; 200-First driving mechanism; 300-Detection mechanism; 310-First mounting bracket; 320-Second detection sensor; 330-First detection sensor; 340-First power supply connector; 400-Detection mating mechanism; 410-Base plate; 420-Clamping assembly; 430-Linkage mechanism; 431-First link; 4311-First link body; 4312-First contact contact; 4313-First floating connector; 432-Second link; 4321-Second link body; 4322-Second contact contact; 4323-Second floating connector; 500-Frame; 600-Second driving mechanism; 610-First sliding frame; 620-Second sliding frame; 630-Driver; 640-Gripper mechanism; 650-Second power supply connector; 700-Workpiece to be tested. Detailed Implementation
[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In the description of the embodiments of this application, unless otherwise stated, " / " means "or", for example, A / B can mean A or B; "and / or" in the text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone.
[0018] Hereinafter, the terms "first" and "second" are used for descriptive purposes only and should not be construed as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature, and in the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.
[0019] Existing surface runout detection equipment mostly uses rigid probes in direct contact with the surface to be measured, or a simple spring-loaded contact method. However, in actual testing, due to machining errors or clamping eccentricities in the workpiece itself, rigid contact can easily lead to probe wear or scratches on the workpiece surface. While the simple spring-loaded method has a certain buffering capacity, its force direction is often inconsistent with the normal direction of the surface to be measured, or it lacks effective motion guidance constraints, causing the probe to wobble or get stuck when following surface undulations, failing to accurately reflect subtle changes in the degree of surface runout, thus resulting in distorted test data. In addition, existing equipment is usually designed for single-specification products, making it difficult to accommodate the automated testing needs of multi-axis and multi-platform products, resulting in low testing efficiency and poor equipment versatility.
[0020] In view of this, this application provides a surface runout detection device for precisely measuring the end face runout or radial runout of rotating parts.
[0021] like Figure 1 As shown, the surface runout detection device 10 of this application embodiment includes a support platform 100, a first driving mechanism 200, a detection mechanism 300, and a detection cooperation mechanism 400.
[0022] Please continue to refer to Figure 1The support platform 100 is used to support the workpiece 700 to be tested. In specific implementation, the support platform 100 can be a fixed worktable or a mobile platform with mobility function to adapt to the testing needs of different workstations and the loading and unloading needs of different parts.
[0023] The first driving mechanism 200 is used to drive the rotating part of the workpiece 700 to rotate. Specifically, the main structure of the workpiece 700 is placed statically on the support platform 100. However, the workpiece 700 includes a rotating part that can rotate relative to the main structure of the workpiece 700. The workpiece 700 also includes a surface to be measured, which remains relatively static with respect to the main structure of the workpiece 700, while the rotating part can rotate relative to the surface to be measured. For example, the first driving mechanism 200 can be a rotatable gripper mechanism 640 to drive the rotating part of the workpiece 700 to rotate uniformly around its own axis.
[0024] like Figures 2 to 4 As shown, the detection mechanism 300 includes a detection component, which is used to acquire displacement signals and convert them into electrical signals for output.
[0025] like Figures 5 to 7 As shown, the detection and mating mechanism 400 includes a base plate 410, a clamping assembly 420, and a linkage mechanism 430. The clamping assembly 420 is fixedly connected to the base plate 410, and the linkage mechanism 430 includes a linkage body, a contact contact, and a floating connector. Specifically, the base plate 410 serves as the mounting carrier for the entire detection and mating mechanism 400. The clamping assembly 420 passes through the center of the base plate 410 and is fixedly connected to the base plate 410. The clamping assembly 420 is tensionedly connected to the rotating part of the workpiece 700 to be tested. When the clamping assembly 420 is connected to the rotating part, the detection and mating mechanism 400 can rotate synchronously with the rotating part.
[0026] The connecting rod body is hinged to the base plate 410, forming a lever transmission structure with the hinge point as the fulcrum. It should be understood that the hinge method is not limited to a pin connection, but can also be other forms of kinematic pairs that allow the connecting rod body to rotate about a fixed point. The floating connector connects the base plate 410 and the connecting rod body, and is used to apply a constant elastic tension to the connecting rod body, so that the contact contact always remains in contact with the surface to be measured (elastic contact state).
[0027] The contact point is mounted on the connecting rod body, and the floating connector, under the action of elastic restoring force, abuts against the measured end face of the rotating part. Specifically, the direction of the elastic restoring force of the floating connector determines the line of action of the preload. The elastic tension provided by the floating connector is converted into normal pressure to maintain contact between the contact point and the measured surface, while the surface undulation displacement sensed by the contact point is transmitted to the detection probe through the swing of the connecting rod body. This arrangement ensures that the elastic contact force between the contact point and the measured surface does not directly act on the detection component, effectively eliminating the measurement hysteresis and error caused by changes in frictional torque in traditional coaxial pressing structures. Even if the elastic force of the floating connector fluctuates slightly due to fatigue, it will not significantly change the sensitivity of the contact point in the measurement direction, thereby greatly improving the repeatability and long-term stability of the detection data.
[0028] When the clamping assembly 420 is connected to the rotating part, the entire detection mating mechanism 400 can rotate synchronously with the rotating part. The contact of the linkage mechanism 430 slides against the surface of the workpiece 700 to be tested. The detection probe of the detection assembly abuts against the linkage mechanism 430. In actual operation, when the first drive mechanism 200 drives the clamping assembly 420 to rotate, the entire detection mating mechanism 400 and the rotating part rotate synchronously with the clamping assembly 420. The contact of the linkage mechanism 430 slides relative to the surface to be tested. At this time, the microscopic morphology changes of the surface to be tested and the errors generated during the assembly process cause the contact to have a small displacement. This displacement is transmitted through the linkage body and captured in real time by the detection probe of the detection assembly.
[0029] Furthermore, the clamping assembly 420 is detachably connected to the rotating part of the workpiece 700. When the clamping assembly 420 is assembled on the workpiece 700, the linkage mechanism 430 on the detection mating mechanism 400 is in contact with the surface to be measured. When the clamping assembly 420 is removed from the rotating part, the entire detection mating mechanism 400 can be removed from the workpiece 700, realizing the rapid assembly and disassembly of the detection mating mechanism 400 and ensuring the detection efficiency of the surface runout detection device 10.
[0030] It should be noted that although the illustrations in this embodiment show a specific spatial layout, in other embodiments, the specific orientation and shape of each component can be adjusted according to the actual working conditions without departing from the protection scope of this application.
[0031] In some implementations, such as Figures 2 to 4As shown, the detection mechanism 300 also includes a first mounting bracket 310, and the detection component includes a first detection sensor 330 mounted on the first mounting bracket 310. Specifically, the first mounting bracket 310, as a support carrier for the detection component, is typically made of a high-rigidity material to ensure the positional stability of the sensor during the measurement process. The first detection sensor 330 is preferably a micrometer, which, utilizing the micrometer's micrometer-level or even submicrometer-level resolution, can accurately capture minute deformations on the surface of the workpiece 700 being measured.
[0032] like Figures 5 to 7 As shown, the linkage mechanism 430 includes a first link 431, which includes a first link body 4311, a first contact contact 4312, and a first floating connector 4313. The first link body 4311 is hinged to the base plate 410, and the first floating connector 4313 connects the base plate 410 and the first link body 4311. The first contact contact 4312 is disposed on the first link body 4311, and the first floating connector 4313 causes the first contact contact 4312 to abut against the end face to be measured, which is in a fixed position, under the action of an elastic restoring force. For example, a flange is provided on the workpiece 700 to be measured, and the end face to be measured is the flange end face. The detection probe of the first detection sensor 330 abuts against the first link body 4311.
[0033] In this structure, please combine Figure 3 and Figure 6 The first link 431 is specifically designed for detecting axial end face runout. The first contact contact 4312 is arranged perpendicular to the end face to be measured. When the rotating part rotates, the flatness fluctuation of the end face pushes the first contact contact 4312 to generate axial displacement. This axial displacement is transmitted to the probe of the first detection sensor 330 through the lever of the first link body 4311. The elastic force provided by the first floating connector 4313 can maintain a constant contact pressure between the first contact contact 4312 and the end face, ensuring the authenticity and repeatability of the end face runout measurement data.
[0034] Furthermore, such as Figures 2 to 4 As shown, to achieve synchronous detection of end runout and radial runout, the detection assembly also includes a second detection sensor 320 disposed on the first mounting bracket 310. The detection probe of the second detection sensor 320 is angled to the detection probe of the first detection sensor 330. This angled arrangement adapts to the shape and structure of rotating parts, allowing a single device to cover multiple measurement dimensions. The second detection sensor 320 can also be a micrometer to ensure consistency between radial and axial measurement accuracy.
[0035] Furthermore, such as Figures 5 to 7As shown, the linkage mechanism 430 also includes a second linkage 432, which includes a second linkage body 4321, a second contact 4322, and a second floating connector 4323. The second linkage body 4321 is hinged to the base plate 410, and the second floating connector 4323 connects the base plate 410 and the second linkage body 4321. The second contact 4322 is disposed on the second linkage body 4321. Under the action of the elastic restoring force, the second floating connector 4323 causes the second contact 4322 to abut against the inner hole wall and / or outer peripheral wall of the workpiece to be measured (e.g., the inner hole wall or outer peripheral wall of a flange). The detection probe of the second detection sensor 320 abuts against the second linkage body 4321.
[0036] When the second contact 4322 contacts the inner hole wall or the outer peripheral wall, the radial roundness error or coaxiality deviation generated by the workpiece rotation drives the second connecting rod body 4321 to float around the hinge point. The second floating connector 4323 provides a stable normal contact force for the second contact 4322, enabling the second contact 4322 to sensitively follow the undulations of the cylindrical surface, thus improving the dynamic response capability of radial runout detection.
[0037] It should be understood that although this embodiment shows a structure that includes both the first link 431 and the second link 432, in other embodiments, only one type of link may be provided according to the detection requirements, or more links may be provided to cover more measurement points, as long as each link satisfies the requirement that the contact orientation is perpendicular to the extension direction of the floating connector.
[0038] like Figure 3 As shown, regarding the specific implementation of the floating connector, it includes a connecting spring. One end of the connecting spring is hooked onto the base plate 410, and the second end is hooked onto the connecting rod body. Specifically, the connecting spring can be an elastic element such as a tension spring, torsion spring, or spring sheet. The hook-and-loop connection method allows for quick disassembly and reassembly of the connecting spring from the base plate 410 and the connecting rod body. This allows operators to adapt to the inspection needs of workpieces with different materials and surface roughness by replacing the spring, avoiding scratching the workpiece due to excessive contact force or causing the contact tip to jump off the surface due to insufficient contact force.
[0039] Furthermore, to ensure the relative positional accuracy between the detection mating mechanism 400 and the detection mechanism 300, the surface runout detection device 10 also includes a positioning structure, which is disposed between the substrate 410 and the first mounting bracket 310. The positioning structure can take the form of a precision positioning pin, a locking block and bayonet engagement, a conical positioning surface, or a keyway connection, etc. Through the positioning structure, the substrate 410 and the first mounting bracket 310 can automatically align and lock in their reference positions during each assembly, ensuring stable contact between the detection component and the linkage mechanism 430, and improving the detection efficiency of the surface runout detection device 10.
[0040] In some implementations, such as Figures 5 to 7 As shown, the clamping assembly 420 includes an inner clamping expansion sleeve, which has a tightened state and a retracted state. Specifically, when the inner clamping expansion sleeve is in the tightened state, its outer wall is interference-fitted with a specific insertion hole of the workpiece 700 to be tested, the contact contact of the linkage mechanism 430 abuts against the surface to be tested of the workpiece 700, and the first drive mechanism 200 drives the inner clamping expansion sleeve to drive the rotating part of the workpiece 700 to rotate. In this state, the inner clamping expansion sleeve generates uniform contact pressure through radial expansion, and torque is transmitted using the interference fit. Meanwhile, since the inner clamping sleeve and the base plate 410 are fixedly connected, the tension force acts on the inner wall of the rotating part, making the inner clamping sleeve, the base plate 410 and the rotating part a synchronously rotating whole. At this time, the linkage mechanism 430 on the base plate 410 can rotate synchronously with the rotating part, and the contact contact on the linkage mechanism 430 can form a relative rotational relationship with the fixedly set test surface. Moreover, the contact contact can form a stable flexible contact with the test surface during the rotation process, ensuring the accuracy of the runout detection data.
[0041] When the inner clamping sleeve is in the retracted state, the detection and fitting mechanism 400 can be separated from the workpiece 700 to be tested. Specifically, by releasing the internal tension force, the outer diameter of the inner clamping sleeve is made smaller than the inner diameter of the insertion hole of the rotating part of the workpiece 700 to be tested, thereby releasing the interference fit. At this time, the detection and fitting mechanism 400 can freely move out of the insertion hole along the axial direction, realizing the rapid loading and unloading of the workpiece.
[0042] It should be understood that the internal clamping expansion sleeve is a mature part structure, and its internal structure will not be described in detail in this application.
[0043] In some implementations, such as Figure 3 As shown, the detection mechanism 300 also includes a first power supply connector 340, which includes a first plug-in terminal and is electrically connected to the detection component.
[0044] Specifically, the first power supply connector 340 serves as the interface for electrical interaction between the detection mechanism 300 and the power supply system and / or control system. The first power supply connector 340 establishes a stable electrical connection with the first detection sensor 330 and the second detection sensor 320 in the detection assembly via wires, thereby enabling the charging of the first detection sensor 330 and the second detection sensor 320. The first detection sensor 330 and the second detection sensor 320 can transmit data signals to the outside in real time during measurement.
[0045] This modular power supply interface design enables the plug-and-play functionality of the inspection mechanism 300. In automated inspection production lines, when the inspection mechanism 300 needs to be replaced for different specifications of the workpiece 700, the operator or robot simply moves the new inspection mechanism 300 to the designated station, automatically connecting the first connector to the corresponding external socket. This instantly completes power supply and wireless data transmission, eliminating the need for tedious manual wiring, soldering, or cabling. This significantly reduces equipment changeover time and improves production efficiency, while also minimizing the risks of tangling, tensile stress, and electromagnetic interference caused by moving external cables, ensuring the reliability of the inspection signals. Furthermore, the standardized interface design allows the inspection mechanism 300 to be maintained as an independent unit, further enhancing the maintainability and expandability of the equipment.
[0046] It should be understood that the specific selection of the first plug-in terminal is not limited to the forms listed above. Any electrical connection structure that can meet the requirements of dust prevention, vibration prevention, and anti-interference in industrial settings and supports quick plugging and unplugging can be used as an equivalent replacement for this application.
[0047] In some implementation methods, please refer to Figure 1 and Figure 2 The surface runout detection device 10 also includes a frame 500 and a second drive mechanism 600. The frame 500 serves as the supporting foundation for the entire system, providing a stable mounting reference for all components. The second drive mechanism 600 connects the frame 500 and the detection mechanism 300, driving the detection mechanism 300 to move relative to the frame 500. Through the precise motion control of the second drive mechanism 600, the detection mechanism 300 can flexibly adjust its position in space, thereby achieving positioning of different workpieces 700 to be tested on the support platform 100 or different detection points of the same workpiece, further improving detection efficiency.
[0048] like Figure 2 As shown, to ensure continuous power supply and signal transmission for the detection mechanism 300 during movement, a second power supply connector 650 is provided on the second drive mechanism 600, which is electrically connected to the first power supply connector 340. Specifically, the second power supply connector 650 serves as a fixed interface on the second drive mechanism 600, forming a separable electrical coupling pair with the first power supply connector 340 on the detection mechanism 300. When the detection mechanism 300 and the second drive mechanism 600 are assembled, the second power supply connector 650 and the first power supply connector 340 are electrically connected, establishing a power and / or data communication link. This design eliminates the traditional drag chain cable tracking method in detection equipment, removing the risk of fatigue breakage caused by repeated cable bending. It also enables the detection mechanism 300 to be independently disassembled and quickly replaced, improving the ease of equipment maintenance.
[0049] In some implementations, such as Figure 8 As shown, the second drive mechanism 600 includes a first sliding frame 610, a second sliding frame 620, a drive member 630, and a gripper mechanism 640. The first sliding frame 610 is slidably disposed on the frame 500 along a first direction. The second sliding frame 620 is slidably disposed on the first sliding frame 610 along a second direction. The second direction is orthogonal to the first direction. The drive member 630 is disposed between the first sliding frame 610 and the second sliding frame 620 to drive the second sliding frame 620 to slide along the second direction. The drive member 630 can be a ball screw pair, a synchronous pulley set, or a linear motor, etc., transmission components, and achieves precise engagement or safe separation between the detection mechanism 300 and the detection mating mechanism 400 by precisely controlling the lifting stroke of the second sliding frame 620.
[0050] Furthermore, such as Figure 8 As shown, a gripper mechanism 640 is disposed on the second sliding frame 620 and is used to clamp the detection mechanism 300. The gripper mechanism 640 can be a pneumatic gripper, a hydraulic chuck, an electric push rod lock, or a magnetic fixing base, etc. When the second sliding frame 620 lowers the detection mechanism 300 to the working position, the gripper mechanism 640 actuates, placing the detection mechanism 300 on the detection mating mechanism 400, and then immediately disengages. A second power supply connector 650 is disposed on the second sliding frame 620. The position of the second power supply connector 650 corresponds to the position of the first power supply connector 340. When the detection mechanism 300 is not working, it can maintain a power plug connection with the second drive mechanism 600, at which time the second drive mechanism 600 can charge the detection mechanism 300. When the detection mechanism 300 needs to work, the second drive mechanism 600 places the detection mechanism 300 on the detection mating mechanism 400, and the two cooperate to complete the detection work.
[0051] In some implementations, such as Figure 1 As shown, the surface runout detection device 10 includes multiple detection mating mechanisms 400, which are installed on different rotating parts of the same workpiece 700 to facilitate end runout and radial runout detection of multiple test surfaces of the same workpiece 700.
[0052] Alternatively, in other embodiments, multiple detection mechanisms 400 are correspondingly installed on the rotating parts of different workpieces 700 to be tested, so as to perform end runout and radial runout detection on different workpieces 700 to be tested.
[0053] To more clearly illustrate the application and technical effects of the surface runout detection device 10 provided in this application in actual industrial production, the following detailed explanation will be based on the detection scenario of a gearbox gear shaft.
[0054] In this application scenario, the main structure of the workpiece 700 to be tested is placed statically on the support platform 100. However, the workpiece 700 includes a rotating part that can rotate relative to the main structure of the workpiece 700. The workpiece 700 also includes a flange that is fixedly disposed relative to the main structure, and the surface to be tested can be the end face of the flange, the inner wall of the flange, or the outer peripheral wall of the flange.
[0055] In this application scenario, the complete process of automatic detection using the aforementioned surface runout detection device 10 includes the following steps: Step S100, loading and pre-assembly. An external automated loading and unloading system (such as an industrial robot) places the workpiece 700 to be tested with its reverse side facing up on the support platform 100, and confirms the workpiece's position using a photoelectric sensor. Subsequently, the robot grips the drive expansion sleeve and places it into the inner hole of the corresponding gear shaft of the workpiece 700, at which point the drive expansion sleeve is in a tensioned state.
[0056] Step S200: Flipping and Alignment with Reference Standard. The robot flips the workpiece 700 to be tested, along with the drive expansion sleeve, 180 degrees vertically, so that the front side of the workpiece 700 (i.e., the side including the flange end face and outer peripheral wall) faces upwards, and the connecting end of the drive expansion sleeve faces downwards, aligning with the output end of the first drive mechanism 200. The support platform 100 moves the workpiece to the preset testing position, and the rotating clamping cylinder or other clamping mechanism actuates to securely fix the workpiece on the support platform 100, ensuring that the workpiece base does not shift during the testing process.
[0057] In step S300, the detection mechanism 300 automatically feeds and electrically connects. The second drive mechanism 600 responds to the control command, driving the detection mechanism 300 to move relative to the frame 500 to directly above the current test point. The first sliding frame 610 moves horizontally to complete coarse positioning, and the second sliding frame 620 descends vertically to complete precise positioning. When not in operation, the detection mechanism 300 can maintain a power plug connection with the second drive mechanism 600, allowing the second drive mechanism 600 to charge the detection mechanism 300. When the detection mechanism 300 needs to operate, the second drive mechanism 600 places the detection mechanism 300 on the detection mating mechanism 400, and the two work together to complete the detection.
[0058] In step S400, the inner clamping sleeve switches to the tensioned state, and the outer wall of the inner clamping sleeve forms an interference fit with a specific insertion hole of the workpiece 700 to be tested. The first drive mechanism 200 is activated, driving the workpiece 700 to be tested to rotate at a constant speed through the inner clamping sleeve. During this process, the contact of the linkage mechanism 430 remains in close contact with the surface to be tested under the action of the floating connector. Since the orientation of the contact is perpendicular to the extension direction of the floating connector, the elastic force provided by the floating connector maintains a constant contact pressure between the contact and the surface, while the surface undulation displacement sensed by the contact is transmitted to the first detection sensor 330 or the second detection sensor 320 through the first linkage body 4311 and the second linkage body 4321.
[0059] In step S500, after the current point is detected, the first drive mechanism 200 stops rotating, and the second drive mechanism 600 removes the detection mechanism 300 from the detection mating mechanism 400 and installs it to the next point to be tested. Steps S300 to S400 are repeated until all required areas on the front are inspected. At this point, the detection mechanism 300 is removed and placed in the second drive mechanism 600 to continue charging, awaiting the next use. If it is necessary to inspect features on the reverse side, the clamping mechanism is released, the robot flips the workpiece again so that the reverse side faces upward, and the corresponding drive sleeve is replaced. The above inspection process is repeated until all inspection tasks are completed.
[0060] In step S600, after all inspection items are completed, the inspection mechanism 300 retracts to the second drive mechanism 600, continues charging and stands by, all inner clamping sleeves switch to the retraction state, release the interference fit with the workpiece, and are retracted one by one to the storage rack. The clamping mechanism releases the workpiece.
[0061] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this application without departing from the spirit and scope of this application. Therefore, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application also intends to include these modifications and variations.
Claims
1. A surface runout detection device, characterized in that, include: A support platform is used to support the workpiece to be tested. The first driving mechanism is used to drive the rotating part of the workpiece to be tested to rotate. Testing organizations, including testing components; The detection and mating mechanism includes a base plate, a clamping assembly, and a linkage mechanism. The clamping assembly is fixedly connected to the base plate. The linkage mechanism includes a linkage body, a contact head, and a floating connector. The linkage body is hinged to the base plate. The floating connector connects the base plate and the linkage body. The contact head is disposed on the linkage body. The clamping assembly is detachably connected to the rotating part. When the clamping assembly is connected to the rotating part, the detection and mating mechanism rotates synchronously with the rotating part. Under the action of elastic restoring force, the floating connector causes the contact head to abut against the surface of the workpiece to be tested. The detection probe of the detection assembly abuts against the linkage mechanism.
2. The surface runout detection device according to claim 1, characterized in that, The detection mechanism further includes a first mounting frame, and the detection component includes a first detection sensor mounted on the first mounting frame; The linkage mechanism includes a first linkage, which includes a first linkage body, a first contact head, and a first floating connector. The first linkage body is hinged to the substrate, and the first floating connector connects the substrate and the first linkage body. The first contact head is disposed on the first linkage body. Under the action of elastic restoring force, the first floating connector causes the first contact head to abut against the surface to be measured. The detection probe of the first detection sensor abuts against the first linkage body.
3. The surface runout detection device according to claim 2, characterized in that, The detection assembly further includes a second detection sensor disposed on the first mounting bracket, wherein the detection probe of the second detection sensor is set at an angle to the detection probe of the first detection sensor; The linkage mechanism includes a second linkage, which includes a second linkage body, a second contact head, and a second floating connector. The second linkage body is hinged to the substrate, and the second floating connector connects the substrate and the second linkage body. The second contact head is disposed on the second linkage body. Under the action of elastic restoring force, the second floating connector causes the second contact head to abut against the inner hole wall and / or outer peripheral wall of the workpiece to be tested. The detection probe of the second detection sensor abuts against the second linkage body.
4. The surface runout detection device according to claim 3, characterized in that, The surface runout detection device also includes a positioning structure disposed between the substrate and the first mounting bracket.
5. The surface runout detection device according to any one of claims 1 to 4, characterized in that, The clamping assembly includes an inner clamping sleeve, which has a tightened state and a retracted state. When the inner clamping sleeve is in the tensioned state, the outer wall of the inner clamping sleeve is interference-fitted with the insertion hole of the rotating part, the contact of the linkage mechanism is in contact with the test surface of the workpiece to be tested, and the first driving mechanism is in driving cooperation with the inner clamping sleeve to drive the contact of the linkage mechanism to rotate relative to the test surface. When the inner clamping sleeve is in the retracted state, the detection and mating mechanism can be separated from the insertion hole of the rotating part.
6. The surface runout detection device according to any one of claims 1 to 4, characterized in that, The floating connector includes a connecting spring, one end of which is hooked to the base plate, and the second end of which is hooked to the connecting rod body.
7. The surface runout detection device according to any one of claims 1 to 4, characterized in that, The detection mechanism further includes a first power supply connector, which includes a first plug-in terminal and is electrically connected to the detection component.
8. The surface runout detection device according to claim 7, characterized in that, The surface runout detection device further includes: frame; The second drive mechanism connects the frame and the detection mechanism to drive the detection mechanism to move relative to the frame; the second drive mechanism is provided with a second power supply connector, and the second power supply structure is electrically connected to the first power supply connector.
9. The surface runout detection device according to claim 8, characterized in that, The second drive mechanism includes a first sliding frame, a second sliding frame, a drive component, and a gripper mechanism; The first sliding frame is slidably disposed on the frame along a first direction; The second sliding frame is slidably disposed on the first sliding frame along the second direction; The driving component is disposed between the first sliding frame and the second sliding frame to drive the second sliding frame to slide along the second direction; The gripper mechanism is disposed on the second sliding frame and is used to clamp the detection mechanism; the second power supply connector is disposed on the second sliding frame.
10. The surface runout detection device according to any one of claims 2 to 4, characterized in that, The surface runout detection device includes multiple detection and mating mechanisms, which are correspondingly installed on different rotating parts of the same workpiece to be tested. And / or, multiple detection mechanisms are correspondingly installed on the rotating parts of different workpieces to be tested.