Self-gravity driving end face reference automatic positioning detection device

Abstract

The utility model relates to the technical field of high-precision positioning and visual inspection, in particular to a self-gravity driving end face reference automatic positioning and detecting device, which comprises a machine body, a display, a grinding wheel clamping mechanism, a Z-axis guide system, a visual mechanism and an end face reference positioning mechanism, the end face reference positioning mechanism comprises a positioning rod, a positioning rod mounting plate, a bearing, a bearing mounting plate and a guide rail. Accurate displacement control in the vertical direction is achieved through the Z-axis guiding system, the end face reference position of the grinding wheel is rapidly and accurately recognized and positioned through the end face reference positioning mechanism, continuous and stable capture and deep analysis of grinding wheel images are achieved through the vision mechanism, the positioning accuracy is remarkably improved, and meanwhile the accuracy of the grinding wheel is improved. The device greatly improves the efficiency of detection operation and the accuracy of data, and is especially suitable for a high-yield production environment in which a large number of workpieces need to be processed.

Description

Technical Field

[0001] The utility model relates to the technical field of high-precision positioning and vision detection, in particular to a self-gravity-driven end-face reference automatic positioning and detection device. Background Art

[0002] In the precision manufacturing industry, as a crucial grinding medium, the grinding wheel determines the geometric accuracy and surface perfection of the product every time it contacts the workpiece. Given that the grinding wheel is a consumable item, the decline in its performance or structural damage will directly affect production efficiency and the proportion of qualified products. Therefore, achieving precise monitoring of the health status of the grinding wheel has become a key link in improving manufacturing quality and efficiency. Although the traditional manual inspection method seems straightforward, its inherent limitations cannot be ignored: on the one hand, the inspection rate of manual operation lags far behind the high-speed operation requirements of contemporary assembly lines; on the other hand, human subjective judgment is likely to introduce measurement errors, weakening the credibility of the data. At the same time, although the automated grinding wheel inspections on the market can provide more refined measurement results, their complex operation interfaces and long programming and debugging cycles make them overwhelmed when faced with a large number of grinding wheel inspection tasks, which to a certain extent restricts their popularity in large-scale industrial applications.

[0003] Based on the above situation, seeking a grinding wheel condition monitoring solution that can not only meet the requirements of rapid inspection but also ensure data accuracy has become an urgent requirement for promoting the further development of the manufacturing industry. Summary of the Utility Model

[0004] Other features and advantages of the utility model will be described in the following specification, and will become partially apparent from the specification, or may be learned by implementing the utility model. The objectives and other advantages of the utility model can be realized and obtained through the structures specifically pointed out in the specification and other accompanying drawings of the specification.

[0005] The objective of the utility model is to overcome the above deficiencies and provide a self-gravity-driven end-face reference automatic positioning and detection device. The utility model realizes precise displacement control in the vertical direction through the Z-axis guiding system, quickly and accurately identifies and locates the end-face reference position of the grinding wheel through the end-face reference positioning mechanism, and realizes continuous, stable capture and depth analysis of the grinding wheel image through the vision mechanism, significantly improving the positioning accuracy. At the same time, it greatly improves the efficiency of the inspection operation and the accuracy of the data, and is particularly suitable for high-volume production environments that need to process a large number of workpieces.

[0006] The utility model provides a self-gravity-driven end-face reference automatic positioning and detecting device, which comprises a machine body, a display, a grinding wheel clamping mechanism, a Z-axis guiding system, a vision mechanism and an end-face reference positioning mechanism. The machine body comprises an operation surface; the display is arranged on one side of the machine body; the grinding wheel clamping mechanism is arranged on the operation surface; the Z-axis guiding system is arranged on the operation surface and behind the grinding wheel clamping mechanism; the vision mechanism is connected to the Z-axis guiding system in a liftable manner; the end-face reference positioning mechanism is installed on the vision mechanism through a positioning group base, and the end-face reference positioning mechanism comprises a positioning rod, a positioning rod mounting plate, a bearing, a bearing mounting plate and a guide rail. The positioning rod is clamped on the positioning rod mounting plate, the positioning rod mounting plate is connected to the bearing through a rotating shaft, the bearing is installed on the bearing mounting plate, and the bearing mounting plate is connected to the guide rail through a guide seat. The utility model realizes precise displacement control in the vertical direction through the Z-axis guiding system, quickly and accurately identifies and locates the end-face reference position of the grinding wheel through the end-face reference positioning mechanism, and realizes continuous, stable capture and depth analysis of the grinding wheel image through the vision mechanism, significantly improving the positioning accuracy. At the same time, the detection operation efficiency and data accuracy are greatly improved, which is particularly suitable for high-output production environments that need to process a large number of workpieces.

[0007] In some embodiments, an image precise positioning ring is sleeved on the positioning rod. The image precise positioning ring is used for identifying and marking features on the vision image for the image positioning algorithm.

[0008] In some embodiments, a locking member is provided on the positioning rod mounting plate, and the positioning rod is adjusted in tightness, taken and placed through the locking member. The setting of the locking member is beneficial to adjusting the tightness of the positioning rod and facilitating the taking and placing of the positioning rod.

[0009] In some embodiments, the Z-axis guiding system comprises a base, a column and a linear module. The base is installed on the operation surface, the column is connected to the base, a drag chain is installed on one side of the column, and the linear module is connected to the column through a positioning pin. The setting of the Z-axis guiding system is beneficial to realizing high-precision linear movement of the vision mechanism and the end-face reference positioning mechanism in the vertical direction and achieving precise positioning.

[0010] In some embodiments, the linear module comprises a lead screw assembly, a slider, a slide rail, a servo motor and a limit plate. One end of the lead screw assembly is connected to the servo motor through a coupling, and the other end is rotatably connected to the limit plate. The slider is threadedly connected to the lead screw assembly, so that the slider moves on the slide rail. The servo motor drives the lead screw assembly to make the slider move linearly on the slide rail, which is beneficial to realizing high-precision linear movement of the vision mechanism and the end-face reference positioning mechanism in the vertical direction.

[0011] In some embodiments, the grinding wheel clamping mechanism includes a grinding wheel, a clamping seat, a main shaft clamping seat, and an electric main shaft. The grinding wheel is fixed on the clamping seat, the clamping seat is installed on the electric main shaft, the electric main shaft is clamped on the main shaft clamping seat, and the main shaft clamping seat is arranged on the operation surface. Such a design aims to achieve stable clamping and automatic rotation of the grinding wheel, providing a necessary basis for subsequent measurement.

[0012] In some embodiments, the vision mechanism includes a mounting base, a connecting plate, a mounting frame, an integrated telecentric lens and light source, and an industrial camera. One side of the mounting base is connected to the slider, the other side of the mounting base is connected to one side of the connecting plate, several mounting frames are arranged on the other side of the connecting plate, the integrated telecentric lens and light source are detachably fixed on the mounting frame through a light source fixing member, and the industrial camera is detachably fixed on the mounting frame through a lens bracket and is arranged on the opposite side of the integrated telecentric lens and light source. The integrated telecentric lens and light source and the industrial camera are used to continuously capture high-definition images of the grinding wheel, providing detailed data support for subsequent size and topography analysis.

[0013] In some embodiments, an up button, a down button, a locking button, a releasing button, a detection button, and a rotation button are installed on the operation surface. The up button and the down button are used to control the up and down movement of the vision structure and the end face reference positioning mechanism, the locking button, the releasing button, and the rotation button are used to control the locking, releasing, and rotation of the electric main shaft and the main shaft clamping seat, and the detection button is used to control the detection of the grinding wheel. The one-key button structure realizes the automation and high precision of grinding wheel measurement, greatly improving the detection efficiency and data reliability.

[0014] In some embodiments, a PLC controller is further included, and the PLC controller is arranged inside the machine body. The PLC controller is used to coordinate the electrical control of the entire system to ensure the collaborative work among various components.

[0015] In some embodiments, the positioning rod is made of tungsten steel. The positioning rod needs to contact the grinding wheel frequently, so that the hardness of the positioning rod should be above that of the grinding wheel. Tungsten steel is a material with extremely high hardness and excellent wear resistance. The hardness of tungsten steel itself is 89 - 95 HRA, far above the hardness of the grinding wheel. Moreover, the tungsten steel positioning rod can achieve seamless mating with the end face of the grinding wheel due to its own gravity. In addition, the positioning rod is also involved in the calculation of image features, so the accuracy needs to be guaranteed, and the machining accuracy of tungsten steel can reach the micron level.

[0016] By adopting the above technical solutions, the beneficial effects of the present utility model are:

[0017] 1. The utility model realizes precise displacement control in the vertical direction through the Z-axis guiding system, quickly and accurately identifies and locates the end face reference position of the grinding wheel through the end face reference positioning mechanism, and realizes continuous, stable capture and depth analysis of the grinding wheel image through the vision mechanism, significantly improving the positioning accuracy. At the same time, it greatly improves the efficiency of the detection operation and the accuracy of the data, and is especially suitable for high-volume production environments that need to process a large number of workpieces.

[0018] 2. The utility model realizes quickly and accurately locking the end face reference point of the grinding wheel through the cooperation of the tungsten steel positioning rod and the micro guide rail, and ensures that each positioning is accurate through precise upper and lower limit adjustment, significantly improving the positioning accuracy and efficiency.

[0019] 3. The utility model drives the grinding wheel to rotate one circle at a lower speed by controlling the motorized spindle. At the same time, the vision camera performs omnidirectional image acquisition on the grinding wheel, and collects the lower end face of the tungsten steel positioning rod as the reference surface for continuous data acquisition and precise calculation, so as to accurately measure key parameters such as the diameter, radial runout, and contour deviation of the grinding wheel, realizing comprehensive coverage and high accuracy of the detection results.

[0020] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.

[0021] Undoubtedly, such purposes of the present utility model and other purposes will become more apparent after the details of the preferred embodiments described in the following with multiple drawings and illustrations.

[0022] To make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following specifically gives one or several preferred embodiments and, in conjunction with the shown drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model.

[0024] In the drawings, the same components are denoted by the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only one or several embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on such drawings without creative efforts.

[0026] Figure 1 This is a schematic structural diagram of an automatic positioning and detection device for an end face reference driven by self-gravity according to the present utility model;

[0027] Figure 2 This is a schematic structural diagram of an end face reference positioning mechanism according to the present utility model;

[0028] Figure 3 This is a schematic structural diagram of a Z-axis guiding system according to the present utility model;

[0029] Figure 4 This is a schematic structural diagram of a vision mechanism according to the present utility model;

[0030] Figure 5 This is a schematic structural diagram of a grinding wheel clamping mechanism according to the present utility model.

[0031] Main reference numerals description:

[0032] 1, machine body; 10, operation surface; 11, up button; 12, down button; 13, lock button; 14, release button; 15, detection button; 16, rotation button;

[0033] 2, display;

[0034] 3, grinding wheel clamping mechanism; 31, grinding wheel; 32, clamping seat; 33, main shaft holding seat; 34, electric main shaft;

[0035] 4, Z-axis guiding system; 41, base; 42, column; 43, drag chain; 44, positioning pin; 45, linear module; 451, lead screw assembly; 452, slider; 453, slide rail; 454, limit plate;

[0036] 5, vision mechanism; 51, mounting base; 52, connecting plate; 53, mounting frame; 54, integrated telecentric lens and light source; 55, industrial camera; 56, light source fixing part; 57, lens support;

[0037] 6, end face reference positioning mechanism;

[0038] 61, positioning group base; 62, positioning rod; 621, image precise positioning ring; 63, positioning rod mounting plate; 631, locking part; 64, bearing; 65, bearing mounting plate; 66, guide rail; 67, guide seat; 68, rotating shaft. Specific embodiments

[0039] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, but not to limit the present utility model.

[0040] In addition, in the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial direction", "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model.

[0041] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements or the interaction relationship between two elements. However, indicating a direct connection means that there is no connection relationship constructed through a transition structure between the two connected main bodies, and they are only connected through the connection structure to form a whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0042] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] Refer to Figures 1-5 , Figure 1 is a schematic structural diagram of a self-gravity-driven end-face reference automatic positioning and detection device of the present utility model; Figure 2 is a schematic structural diagram of an end-face reference positioning mechanism of the present utility model; Figure 3 is a schematic structural diagram of a Z-axis guiding system of the present utility model; Figure 4 is a schematic structural diagram of a vision mechanism of the present utility model; Figure 5 is a schematic structural diagram of a grinding wheel clamping mechanism of the present utility model.

[0044] According to some embodiments of the present utility model, the present utility model provides a self-gravity-driven end-face reference automatic positioning and detection device, including a machine body 1, a display 2, a grinding wheel clamping mechanism 3, a Z-axis guiding system 4, a vision mechanism 5, and an end-face reference positioning mechanism 6. The machine body 1 includes an operation surface 10; the display 2 is arranged on one side of the machine body 1; the grinding wheel clamping mechanism 3 is arranged above the operation surface 10; the Z-axis guiding system 4 is arranged above the operation surface 10 and behind the grinding wheel clamping mechanism 3; the vision mechanism 5 is connected to the Z-axis guiding system 4 in a liftable manner; the end-face reference positioning mechanism 6 is installed on the vision mechanism 5 through a positioning group base 61, and the end-face reference positioning mechanism 6 includes a positioning rod 62, a positioning rod mounting plate 63, a bearing 64, a bearing mounting plate 65, and a guide rail 66. The positioning rod 62 is clamped on the positioning rod mounting plate 63, the positioning rod mounting plate 63 is connected to the bearing 64 through a rotating shaft 68, the bearing 64 is installed on the bearing mounting plate 65, and the bearing mounting plate 65 is connected to the guide rail 66 through a guide seat 67. The present utility model realizes precise displacement control in the vertical direction through the Z-axis guiding system 4, quickly and accurately identifies and locates the end-face reference position of the grinding wheel 31 through the end-face reference positioning mechanism 6, and realizes continuous, stable capture and depth analysis of the image of the grinding wheel 31 through the vision mechanism 5, significantly improving the positioning accuracy. At the same time, it greatly improves the efficiency of the detection operation and the accuracy of the data, and is particularly suitable for high-production environments that need to process a large number of workpieces.

[0045] According to some embodiments of the present utility model, optionally, an image precise positioning ring 621 is sleeved on the positioning rod 62. The image precise positioning ring 621 is used for discriminant marking features on the visual image for the image to perform a positioning algorithm.

[0046] According to some embodiments of the present utility model, optionally, a locking member 631 is provided on the positioning rod mounting plate 63, and the positioning rod 62 is adjusted in tightness, taken and placed through the locking member 631. The setting of the locking member 631 is beneficial to adjusting the tightness of the positioning rod 62 and facilitating the taking and placing of the positioning rod 62.

[0047] According to some embodiments of the present utility model, optionally, the Z-axis guiding system 4 includes a base 41, a column 42, a drag chain 43, and a linear module 45. The base 41 is installed on the operation surface 10, the column 42 is connected to the base 41, the drag chain 43 is installed on one side of the column 42, and the linear module 45 is connected to the column 42 through a positioning pin 44. The setting of the Z-axis guiding system 4 is beneficial to realizing high-precision linear movement of the vision mechanism 5 and the end-face reference positioning mechanism 6 in the vertical direction and achieving precise positioning.

[0048] According to some embodiments of the utility model, the linear module 45 optionally includes a screw assembly 451, a slider 452, a slide rail 453, a servo motor (not shown), and a limit plate 454. One end of the screw assembly 451 is connected to the servo motor through a coupling, and the other end is rotatably connected to the limit plate 454. The slider 452 is threadedly connected to the screw assembly 451, so that the slider 452 moves on the slide rail 453. The servo motor drives the screw assembly 451 to make the slider 452 move linearly on the slide rail 453, which is conducive to realizing high-precision linear movement of the visual mechanism 5 and the end face reference positioning mechanism 6 in the vertical direction.

[0049] According to some embodiments of the utility model, optionally, the grinding wheel clamping mechanism 3 includes a grinding wheel 31, a clamping seat 32, a spindle clamping seat 33, and an electric spindle 34. The grinding wheel 31 is fixed on the clamping seat 32, the clamping seat 32 is installed on the electric spindle 34, the electric spindle 34 is clamped on the spindle clamping seat 33, and the spindle clamping seat 33 is arranged on the operating surface 10. Such a design is intended to achieve stable clamping and automatic rotation of the grinding wheel 31, providing a necessary basis for subsequent measurement.

[0050] According to some embodiments of the utility model, optionally, the visual mechanism 5 includes a mounting base 51, a connecting plate 52, a mounting frame 53, an integrated telecentric lens and light source 54, and an industrial camera 55. One side of the mounting base 51 is connected to the slider 452, and the other side of the mounting base 51 is connected to one side of the connecting plate 52. The other side of the connecting plate 52 is provided with a plurality of mounting frames 53. The integrated telecentric lens and light source 54 is detachably fixed to the mounting frame 53 through a light source fixing member 56. The industrial camera 55 is detachably fixed to the mounting frame 53 through a lens bracket 57 and is arranged on the opposite side of the integrated telecentric lens and light source 54. The integrated telecentric lens and light source 54 and the industrial camera 55 are used to continuously capture high-definition images of the grinding wheel 31, and provide detailed data support for subsequent size and shape analysis.

[0051] According to some embodiments of the utility model, optionally, an ascending button 11, a descending button 12, a locking button 13, a releasing button 14, a detecting button 15, and a rotating button 16 are installed on the operating surface 10. The ascending button 11 and the descending button 12 are used to control the ascending and descending of the visual structure and the end face reference positioning mechanism 6, the locking button 13, the releasing button 14, and the rotating button 16 are used to control the locking, releasing, and rotating of the electric spindle 34 and the spindle clamping seat 33, and the detecting button 15 is used to control the detection of the grinding wheel 31. The one-touch button structure realizes the automation and high precision of the measurement of the grinding wheel 31, which greatly improves the detection efficiency and data reliability.

[0052] According to some embodiments of the present utility model, optionally, it further includes a PLC controller (not labeled), and the PLC controller is disposed inside the machine body 1. The PLC controller is used to coordinate the electrical control of the entire system to ensure the collaborative work among various components.

[0053] According to some embodiments of the present utility model, optionally, the positioning rod 62 is made of tungsten steel. The positioning rod 62 needs to contact the grinding wheel 31 frequently, so that the hardness of the positioning rod 62 should be above that of the grinding wheel 31. Tungsten steel is a material with extremely high hardness and excellent wear resistance. The hardness of tungsten steel itself is 89 - 95 HRA, far above the hardness of the grinding wheel. Moreover, the tungsten steel positioning rod can achieve seamless mating with the end face of the grinding wheel 31 due to its own gravity. In addition, the positioning rod 62 is also involved in the calculation of image features, so the accuracy needs to be guaranteed, and the processing accuracy of tungsten steel can reach the micron level.

[0054] Embodiment 1

[0055] Refer to Figures 1-5 , this embodiment provides a self - gravity - driven end - face reference automatic positioning and detection device, and the device includes:

[0056] The machine body 1, which includes an operation surface 10, and on the operation surface 10, there are installed an up button 11, a down button 12, a locking button 13, a release button 14, a detection button 15, and a rotation button 16. The up button 11 and the down button 12 are used to control the up and down functions of the vision structure and the end - face reference positioning mechanism 6. The locking button 13, the release button 14, and the rotation button 16 are used to control the locking, release, and rotation functions of the electric spindle 34 and the spindle clamping seat 33, so as to lock the grinding wheel 31 on the clamping seat 32, or rotate on the clamping seat 32, or loosen and remove it from the clamping seat 32. The detection button 15 is used to control the detection of the grinding wheel 31;

[0057] The display 2, which is disposed on one side of the machine body 1;

[0058] The grinding wheel clamping mechanism 3, which includes a grinding wheel 31, a clamping seat 32, a spindle clamping seat 33, and an electric spindle 34. The grinding wheel 31 is detachably fixed on the clamping seat 32. The clamping seat 32 is installed on the electric spindle 34. The electric spindle 34 is clamped on the spindle clamping seat 33. The spindle clamping seat 33 is disposed on the operation surface 10. Among them, the rotation period of the electric spindle 34 is within 120 seconds, that is, it only takes 120 seconds for the electric spindle 34 to drive the grinding wheel 31 to rotate one week, thereby greatly improving the detection efficiency;

[0059] The Z-axis guiding system 4 is arranged above the operation surface 10 and behind the grinding wheel clamping mechanism 3. The Z-axis guiding system 4 includes a base 41, a column 42, a drag chain 43, and a linear module 45. The drag chain 43 is installed on one side of the column 42. The drag chain 43 is composed of two inner and outer chain plates and connecting pieces connecting the chain plates. There is enough clearance between the inner chain plate and the outer chain plate to accommodate the lines. Through the shape and structure of the inner chain plate and the outer chain plate, the lines can be guided from one side to the other side to avoid the deviation of their fixed positions. At the same time, the drag chain 43 can prevent dust, water, chemicals, etc. from entering the interior of the device. In addition to ensuring the normal operation of the device, it can also effectively protect the lines from being damaged by wear, impact, stretching, etc. in the external environment; The base 41 is installed on the operation surface 10, the column 42 is connected to the base 41, and the linear module 45 is connected to the column 42 through a positioning pin 44. The linear module 45 includes a lead screw assembly 451, a slider 452, a slide rail 453, a servo motor, and a limit plate 454. Among them, the limit plate 454 can, firstly, prevent the slider 452 from sliding out of the slide rail 453, and secondly, allow one end of the lead screw assembly 451 to be rotatably connected thereto. The other end of the lead screw assembly 451 is connected to the servo motor through a coupling. The slider 452 is threadedly connected to the lead screw assembly 451, so that the slider 452 makes a linear motion on the slide rail 453;

[0060] The vision mechanism 5 is liftably connected to the Z-axis guiding system 4; The vision mechanism 5 includes a mounting base 51, a connecting plate 52, a mounting frame 53, an integrated telecentric lens and light source 54, and an industrial camera 55. One side of the mounting base 51 is connected to the slider 452, and the other side of the mounting base 51 is connected to one side of the connecting plate 52. A number of mounting frames 53 are arranged on the other side of the connecting plate 52. The integrated telecentric lens and light source 54 are detachably fixed on the mounting frame 53 through a light source fixing member 56, and the industrial camera 55 is detachably fixed on the mounting frame 53 through a lens bracket 57 and is arranged on the opposite side of the integrated telecentric lens and light source 54. By adopting the integrated telecentric lens and light source 54 and matching with a high-resolution industrial camera 55, continuous and high-precision image capture and analysis of the characteristics of the grinding wheel 31 are realized, so that the repeated measurement error is strictly limited within 0.005 mm;

[0061] The end face reference positioning mechanism 6 is installed on the connecting plate 52 of the vision mechanism 5 through the positioning group base 61, and is located between the integrated telecentric lens and light source 54 and the industrial camera 55. The end face reference positioning mechanism 6 includes a positioning rod 62, a positioning rod mounting plate 63, a bearing 64, a bearing mounting plate 65, and a guide rail 66. The guide rail 66 is preferably a micro guide rail 66, the bearing 64 is preferably a precision bearing 64, and the positioning rod 62 is preferably a tungsten steel positioning rod 62. Due to its own gravity, the tungsten steel positioning rod 62 can be completely fitted with the end face reference of the grinding wheel 31, and the machining accuracy of tungsten steel can reach the micron level, which is beneficial for the positioning rod 62 to participate in the calculation of image features. An image precise positioning ring 621 is sleeved on the positioning rod 62 through a machine screw. The image precise positioning ring 621 is fitted with the end face reference of the grinding wheel 31. The positioning rod 62 is clamped on the positioning rod mounting plate 63. A locking member 631 is provided on the positioning rod mounting plate 63. The locking member 631 includes a locking groove and a nut. The locking member 631 can adjust the tightness of the positioning rod 62 through the cooperation of the locking groove and the nut, and is beneficial for the taking and placing of the positioning rod 62. The positioning rod mounting plate 63 is connected to the bearing 64 through a rotating shaft 68. The bearing 64 is installed on the bearing mounting plate 65. The bearing mounting plate 65 is connected to the micro guide rail 66 through a guide seat 67 to realize the fine adjustment of the positioning rod 62, so that the positioning rod 62 is in flexible contact with the grinding wheel 31.

[0062] Working principle: When an operator uses this device, first install the grinding wheel 31 on the clamping seat 32. Under the precise control of the PLC, control the electric spindle 34 and the spindle clamping seat 33 to cooperate through the locking button 13 and the loosening button 14 to lock the installed grinding wheel 31 and the clamping seat 32 as a whole. Then, press the down button 12 to make the slider 452 execute a downward displacement within the slide rail 453 of the linear module 45, so that the vision mechanism 5 and the end face reference positioning mechanism 6 move to control the measured grinding wheel 31 within the field of view of the industrial camera 55. When the slider 452 moves downward, through the cooperation of the guide rail 66, the guide seat 67 and the bearing 64, the tungsten steel positioning rod 62 contacts the end face of the grinding wheel 31 gently and softly. At this time, the tungsten steel positioning rod 62 is supported. Then, the positioning rod 62 is moved to a suitable angle and position by the cooperation of the rotating shaft 68 and the guide rail 66. Then, control the electric spindle 34 to drive the grinding wheel 31 to rotate slowly for one week through the rotation button 16. At the same time, press the detection button 15. The industrial camera 55 performs omnidirectional image acquisition on the grinding wheel 31 under the action of the integrated telecentric lens and the light source 54, and collects the lower end face of the tungsten steel positioning rod 62 as the reference surface to continuously obtain data and perform precise calculations, so as to accurately measure key parameters such as the diameter, radial runout, and profile deviation of the grinding wheel 31. After the detection is completed, press the up button 11 to make the slider 452 execute an upward displacement within the slide rail 453 of the linear module 45. At this time, loosen the grinding wheel 31 from the clamping seat 32 and remove it through the loosening button 14, and then replace it with another grinding wheel 31, and perform the operation and detection according to the above steps.

[0063] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should extend to equivalent alternatives of such features understood by those of ordinary skill in the relevant art. It should also be understood that the terms used herein are for the purpose of describing specific embodiments only and do not imply limitation.

[0064] The "embodiments" mentioned in the specification mean that the specific features or characteristics described in connection with the embodiments are included in at least one embodiment of the present invention. Therefore, the phrases or "embodiments" that appear throughout the specification do not necessarily all refer to the same embodiment.

[0065] In addition, the described features or characteristics can be combined into one or more embodiments in any other suitable way. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will understand that the present invention can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. An automatic positioning and detection device for self-gravity-driven end-face reference, characterized in that Comprising: A body, which includes an operating surface; A display, which is arranged on one side of the body; A grinding wheel clamping mechanism, which is arranged above the operating surface; A Z-axis guiding system, which is arranged above the operating surface and behind the grinding wheel clamping mechanism; A vision mechanism, which is connected to the Z-axis guiding system in a liftable manner; An end face reference positioning mechanism, which is mounted on the vision mechanism through a positioning group base. The end face reference positioning mechanism includes a positioning rod, a positioning rod mounting plate, a bearing, a bearing mounting plate, and a guide rail. The positioning rod is clamped on the positioning rod mounting plate. The positioning rod mounting plate is connected to the bearing through a rotating shaft. The bearing is mounted on the bearing mounting plate. The bearing mounting plate is connected to the guide rail through a guide seat.

2. The self-gravity-driven end-face reference automatic positioning and detecting device according to claim 1, wherein An image precise positioning ring is sleeved on the positioning rod.

3. The self-gravity-driven end-face reference automatic positioning and detection device according to claim 1, characterized in that, A locking member is provided on the positioning rod mounting plate. The positioning rod is adjusted for tightness, taken and placed through the locking member.

4. The self-gravity-driven end-face reference automatic positioning and detection device according to claim 1, characterized in that The Z-axis guiding system includes a base, a column, and a linear module. The base is mounted on the operating surface. The column is connected to the base. The linear module is connected to the column through a positioning pin.

5. The self-gravity-driven end-face reference automatic positioning and detection device according to claim 4, wherein The linear module includes a lead screw assembly, a slider, a slide rail, a servo motor, and a limit plate. One end of the lead screw assembly is connected to the servo motor through a coupling, and the other end is rotatably connected to the limit plate. The slider is threadedly connected to the lead screw assembly, so that the slider moves on the slide rail.

6. The self-gravity-driven end-face reference automatic positioning and detection device according to claim 1, wherein The grinding wheel clamping mechanism includes a grinding wheel, a clamping seat, a main shaft clamping seat, and an electric spindle. The grinding wheel is fixed on the clamping seat. The clamping seat is mounted on the electric spindle. The electric spindle is clamped on the main shaft clamping seat. The main shaft clamping seat is arranged on the operating surface.

7. The self-gravity-driven end-face reference automatic positioning and detection device according to claim 5, wherein The vision mechanism includes a mounting base, a connecting plate, a mounting frame, an integrated telecentric lens and light source, and an industrial camera. One side of the mounting base is connected to the slider. The other side of the mounting base is connected to one side of the connecting plate. A plurality of the mounting frames are arranged on the other side of the connecting plate. The integrated telecentric lens and light source are detachably fixed on the mounting frame through a light source fixing member. The industrial camera is detachably fixed on the mounting frame through a lens bracket and is arranged on the opposite side of the integrated telecentric lens and light source.

8. The self-gravity-driven end-face reference automatic positioning and detection device according to claim 1, wherein An up button, a down button, a locking button, a release button, a detection button, and a rotation button are arranged on the operating surface.

9. The self-gravity-driven end-face reference automatic positioning and detection device according to any one of claims 1-8, characterized in that, It further includes a PLC controller, and the PLC controller is arranged inside the body.

10. The self-gravity-driven end-face reference automatic positioning and detection device according to claim 9, characterized in that, The positioning rod is made of tungsten steel.

Images