Calibration device

Abstract

The utility model relates to the technical field of 3D printing, in particular to a calibration device. The calibration device comprises an imaging module, an imaging fixing plate and an adjusting module, the imaging module is fixedly installed on the imaging fixing plate, one end of the adjusting module is used for being installed on a to-be-detected machine, and the other end is connected with the imaging fixing plate; the adjusting module can drive the imaging fixing plate to move in the preset space so as to adjust the relative position of the imaging module relative to the ray machine projection of the machine to be detected. The calibration device provided by the utility model realizes light weight, is convenient to move, can be fixed on the to-be-detected machine to realize on-site image acquisition, and improves the efficiency and convenience of image acquisition.

Description

Technical Field

[0001] The present application relates to the field of 3D printing technology, and in particular to a calibration device. Background Art

[0002] 3D printing technology is a technology that uses digital models (3D design files) as the basis, using adhesive materials such as powdered metal or plastic to construct objects layer by layer through a 3D printer.

[0003] The premise for DLP type 3D printers to ensure printing accuracy is that the optical machine projection is free of distortion. Before leaving the factory, the new optical machine must be calibrated for distortion and light intensity and uniformity to achieve the best use status. This example focuses on the detailed description of the patent solution for distortion calibration. Distortion calibration is called calibration in this example, that is, after taking a picture of the optical machine projection with a camera, it is analyzed and calculated with the standard figure, and the distorted area is identified through an algorithm and the parameters are adjusted. After the parameters are re-entered into the optical machine, the distortion problem of the optical machine can be corrected. This process is calibration.

[0004] The existing calibration machines are large machines and are not portable. When the printer needs to be recalibrated due to abnormal reasons such as aging or transportation impact during use, the existing calibration machines cannot calibrate the 3D printer on site. The 3D printer can only be transported back to a dedicated site for recalibration. The process is cumbersome and inefficient, and the calibration work cannot be completed quickly. Utility Model Content

[0005] The present application provides a calibration device that can effectively improve the calibration efficiency and convenience of a 3D printer.

[0006] The present application provides a calibration device, including an imaging module, an imaging fixing part and an adjustment module; the imaging module is arranged on the imaging fixing part, one end of the adjustment module is used to be installed on the machine to be inspected, and the other end is connected to the imaging fixing part; wherein the adjustment module is used to drive the imaging fixing part to move so as to adjust the relative position of the imaging module relative to the optical machine of the machine to be inspected.

[0007] In some embodiments, the adjustment module includes:

[0008] A first adjustment mechanism, used for adjusting the horizontality of the imaging fixing portion;

[0009] a second adjustment mechanism, connected to the first adjustment mechanism and used to adjust the lateral position, longitudinal position and / or angle of the imaging fixing portion;

[0010] Adjust the fixing seat for installation on the machine to be tested;

[0011] One of the first adjusting mechanism and the second adjusting mechanism is connected to the adjusting fixing seat, and the other is connected to the imaging fixing part.

[0012] In some embodiments, the first adjustment mechanism includes a base plate, a level adjustment plate, and at least one set of level adjustment components. The level adjustment components are disposed between the base plate and the level adjustment plate, and are used to adjust the levelness of the level adjustment plate.

[0013] In some embodiments, the horizontal adjustment assembly includes an adjustment spring and an adjustment bolt. The base plate has several first screw holes, and the horizontal adjustment plate has second screw holes corresponding to the first screw holes. The adjustment bolt passes through the first screw holes and the second screw holes to connect the base plate and the horizontal adjustment plate. The adjustment spring is sleeved on the adjustment bolt and pressed between the base plate and the horizontal adjustment plate.

[0014] In some embodiments, the horizontal adjustment assembly includes a first screw and a second screw, one end of the first screw passes through the base plate and abuts against the horizontal adjustment plate, and the second screw is used to connect the base plate and the horizontal adjustment plate.

[0015] In some embodiments, the horizontal adjustment assembly includes a wedge block and a third screw. The two sides of the wedge block are respectively abutted against the base plate and the horizontal adjustment plate. The horizontal adjustment plate is provided with a contact surface opposite to the inclined surface of the wedge block. The third screw is used to connect the base plate and the horizontal adjustment plate.

[0016] In some embodiments, the first adjustment mechanism includes a pan-tilt assembly.

[0017] In some embodiments, the adjustment fixing seat is a base, the base includes a base block, one end of the base block is connected to the substrate, and the other end of the base block is used to connect to the Z axis of the machine to be inspected;

[0018] The second adjustment mechanism connects the horizontal adjustment plate and the imaging fixing part.

[0019] In some embodiments, the second adjustment mechanism is a magnetic adsorption component.

[0020] In some embodiments, the second adjustment mechanism is a first translation stage, the first translation stage has a degree of freedom of movement in the X direction, a degree of freedom of movement in the Y direction, and a degree of freedom of rotation in the XOY plane; the adjustment fixing seat is connected to the first translation stage; the substrate is disposed on the top of the first translation stage;

[0021] A Z-axis translation stage is connected between the horizontal adjustment plate and the imaging fixed part, and the Z-axis translation stage has a vertical degree of freedom of movement.

[0022] In some embodiments, the adjustment module includes a horizontal adjustment plate and a second translation stage connected between the horizontal adjustment plate and the imaging fixing portion, the second translation stage having a degree of freedom of movement in an X direction, a degree of freedom of movement in a Y direction, and a degree of freedom of rotation in an XOY plane;

[0023] The imaging module is horizontally fixed to the imaging fixing part;

[0024] The lower side of the horizontal adjustment plate is connected to a fixed frame at a preset inclination angle relative to the horizontal plane. A reflector is arranged in the fixed frame. The reflector is used to reflect the optical projection of the machine to be inspected to the imaging module.

[0025] In some embodiments, the adjustment module is a universal seat, one end of which is connected to the imaging fixing part, and the other end is connected to the magnetic fixing seat, and the magnetic fixing seat is used for magnetic adsorption to the machine to be detected.

[0026] In some embodiments, the imaging fixing portion includes a vertical plate and a horizontal plate, and a horizontality measuring member is fixed above the horizontal plate.

[0027] In some embodiments, a lighting module is also included, and the lighting module is used to be fixed above the material tray of the machine to be inspected.

[0028] In some embodiments, a lighting module includes a light bar, an angle fixture, a lighting fixture plate, and a lighting mount;

[0029] The corner fixings are connected between adjacent light bars, and the light bars and the corner fixings are sequentially connected to form a ring structure;

[0030] The lighting fixing plate is connected with the light bar, and the lighting mounting seat and the lighting fixing plate are slidably connected through the groove rail.

[0031] Compared with the prior art, the technical solution provided by the embodiment of the present application has the following advantages: an adjustment module is fixed on the machine to be inspected, the imaging fixing part is connected to the adjustment module, and the imaging module is fixed on the imaging fixing part to realize on-site calibration of the machine to be inspected; the adjustment module that can be installed on the machine to be inspected realizes the lightweight of the entire calibration device, and is convenient for carrying and moving to the location of the machine to be inspected for on-site calibration; by adjusting the adjustment module of the calibration device, the imaging fixing part and the imaging module are driven to move to the designated position to take photos and image the optical projection of the machine to be inspected, thereby completing the calibration; the process of transporting the machine to be inspected is reduced, and the calibration efficiency and convenience are significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0034] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0035] Figure 1 An intuitive diagram of the calibration device provided in the first embodiment of the present application;

[0036] Figure 2 for Figure 1 Exploded diagram of

[0037] Figure 3 for Figure 1 Schematic diagram of the working status of the calibration device;

[0038] Figure 4 A schematic diagram of a horizontal adjustment component of a calibration device provided in a second embodiment of the present application;

[0039] Figure 5 A schematic diagram of a level adjustment assembly of a calibration device provided in the third embodiment of the present application;

[0040] Figure 6 A visual diagram of a calibration device provided in the fourth embodiment of the present application;

[0041] Figure 7 for Figure 6 Exploded diagram of

[0042] Figure 8 for Figure 6 Schematic diagram of the working status of the calibration device;

[0043] Fig. 9 A visual diagram of a calibration device provided in the fifth embodiment of the present application;

[0044] Fig.10 for Fig. 9 Exploded diagram of

[0045] Fig.11 for Fig. 9 Schematic diagram of the working status of the calibration device;

[0046] Fig.12 A visual diagram of a calibration device provided in the sixth embodiment of the present application;

[0047] Fig.13 for Fig.12 Exploded diagram of

[0048] Fig.14 for Fig.12 Schematic diagram of the working status of the calibration device;

[0049] Fig.15 A schematic diagram of a first translation stage and a second translation stage used in an embodiment of the present application;

[0050] Fig.16 is a schematic diagram of a lighting module;

[0051] Fig.17 for Fig.16 Exploded diagram of

[0052] Fig.18 A schematic diagram of a lighting module provided in this embodiment;

[0053] Fig.19 A schematic diagram of a calibration device provided in this embodiment.

[0054] Description of reference numerals:

[0055] 001, machine to be tested;

[0056] 1. Imaging module; 2. Imaging fixing plate; 3. Level measuring part; 4. Z-axis translation stage; 5. Level adjustment plate; 51. Base plate; 6. Adjustment bolt; 7. Adjustment spring; 8. First translation stage; 9. Second translation stage; 10. Magnetic seat; 11. Adapter plate; 12. Universal seat; 13. Fixing frame; 14. Adjustment screw; 15. Reflector; 16. Base; 17. Handle; 18. Lighting module; 181. Light bar; 182. Angle fixing piece; 183. Lighting fixing plate; 184. Lighting mounting seat; 185. Pommel horse seat; 19. Magnetic fixing seat; 20. First screw; 21. Second screw; 22. Third screw; 23. Wedge block; 24. Slide rail assembly. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0058] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0059] For ease of description, spatial relative terms may be used in the text to describe the relative position or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation other than the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications will also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly. The Z axis or Z direction referred to below specifically refers to the vertical direction, and the XOY plane refers to the horizontal plane.

[0060] In order to solve the problem of cumbersome and inefficient 3D printer calibration in the prior art, the present application provides a calibration device that can realize on-site calibration of a 3D printer, simplify the operation process, and improve the calibration efficiency and convenience.

[0061] The calibration device provided in the embodiment of the present application is mainly composed of an imaging module 1, an imaging fixing part and an adjustment module; the imaging module 1 usually adopts a camera, the camera takes a picture of the optical machine projection, identifies the distorted area through an algorithm and adjusts the parameters, and after re-entering the parameters into the optical machine, the distortion problem of the optical machine can be corrected; the imaging module 1 is installed on the imaging fixing part; one end of the adjustment module is connected to the imaging fixing part, and the other end is used to be installed at an appropriate position of the machine to be tested 001. The adjustment module has a certain degree of freedom of movement to meet the position adjustment needs of the imaging module 1, so as to ensure that the imaging module 1 is in an appropriate position relative to the optical machine projection when taking pictures, improve the imaging quality and thus ensure the reliability of the calibration. The adjustment module that can be installed on the machine to be tested 001 realizes the lightweight of the overall calibration device, which is convenient for carrying to the machine to be tested 001 for on-site calibration, and improves the calibration efficiency and convenience.

[0062] It should be noted that the present application only improves the structure of the optical-mechanical calibration device and does not involve improvements to the distortion algorithm during calibration. The distortion algorithm refers to the existing optical-mechanical calibration method.

[0063] In some embodiments, the adjustment module of the partial calibration device is mainly composed of three parts: an adjustment fixing seat, a first adjustment mechanism, and a second adjustment mechanism. The imaging fixing part can adopt an imaging fixing plate 2 with a plate-like structure. Among them, the first adjustment mechanism is used to adjust the horizontality of the imaging fixing plate 2; the second adjustment mechanism is connected to the first adjustment mechanism, and is also used to adjust the horizontal position and angle of the imaging fixing plate 2 to ensure that the imaging module 1 in the vertical direction is located directly above the optical projection of the machine to be tested 001; the adjustment fixing seat plays the role of installing and fixing it to the machine to be tested 001. One of the first adjustment mechanism and the second adjustment mechanism is connected to the adjustment fixing seat, and the other is connected to the imaging fixing plate 2. The specific structure and adjustment process are described in detail below with the first embodiment and the second embodiment.

[0064] First embodiment

[0065] See also Figures 1 to 3 In this embodiment, the first adjustment mechanism is connected to the adjustment fixing seat, and the second adjustment mechanism is connected to the imaging fixing plate 2. The adjustment fixing seat is a base 16, which includes a block-shaped base block and a substrate 51 connected to one side of the base block; the base block can be installed on the Z axis of the machine to be inspected 001, and the Z axis of the machine to be inspected 001 itself is used to adjust the Z position of the imaging module 1; the substrate 51 has a plurality of first screw holes along its thickness direction.

[0066] The first adjustment mechanism includes a substrate 51, a horizontal adjustment plate 5 and a horizontal adjustment component. The horizontal adjustment component is arranged between the substrate 51 and the horizontal adjustment plate 5 and is used to adjust the horizontality of the horizontal adjustment plate 5, thereby adjusting the horizontality of the imaging module 1. In an optional implementation of the present embodiment, the horizontal adjustment component adopts the form of an adjustment bolt 6 and an adjustment spring 7 that cooperate with each other. The horizontal adjustment plate 5 is generally a rectangular plate. The horizontal adjustment plate 5 has a second screw hole corresponding to the first screw hole of the substrate 51. The correspondence here refers to a one-to-one correspondence in quantity and position. The number of the adjustment spring 7 and the adjustment bolt 6 is equal to the number of the first screw hole and the second screw hole. The adjustment spring 7 is sleeved on the adjustment bolt 6 in a one-to-one correspondence. The adjustment bolt 6 connects the substrate 51 and the horizontal adjustment plate 5 through the first screw hole and the second screw hole. The adjustment spring 7 is compressed and installed between the substrate 51 and the horizontal adjustment plate 5, and has a certain supporting effect on the horizontal adjustment plate 5.

[0067] The second adjustment mechanism uses a magnetic adsorption component. This embodiment is described by taking the magnetic base 10 as an example. The magnetic base 10 connects the horizontal adjustment plate 5 and the imaging fixed plate 2. It should be supplemented that the horizontal adjustment plate 5 and the imaging fixed plate 2 are both ferrous metal parts to ensure that they can be adsorbed and fixed by the magnetic base 10. The imaging fixed plate 2 adopts an L-shaped plate, which includes a horizontal plate and a vertical plate. The horizontal plate is placed on the magnetic base 10, and the imaging module 1 is vertically fixed on the outside of the vertical plate. In order to ensure the verticality of the imaging module 1, a horizontal measuring part 3 is also installed above the horizontal plate. The horizontal measuring part 3 can be a level, a micrometer or a gyroscope.

[0068] When the machine to be inspected 001 is optically and mechanically calibrated, the base 16 is first connected to the Z axis of the machine to be inspected 001 through the base block, and the distance of the imaging module 1 in the Z direction relative to the optical projection of the machine to be inspected 001 is adjusted by using the Z axis of the machine to be inspected 001; then, the adjusting bolts 6 at different positions are turned, and the horizontal adjustment plate 5 and the cross plate of the imaging fixing plate 2 are adjusted to be horizontal with the help of the horizontality measuring piece 3 on the imaging fixing plate 2; then, the switch of the magnetic base 10 is turned off to eliminate the magnetic force, the imaging fixing plate 2 is moved or rotated, and after manually adjusting the imaging fixing plate 2 and the imaging module 1 to the appropriate position, the switch of the magnetic base 10 is turned on again to fix the imaging fixing plate 2 relative to the horizontal adjustment plate 5.

[0069] It is understandable that the magnetic adsorption component can not only adopt the magnetic seat 10 as described in the above embodiment, but also adopt other forms of electromagnetic structures that are easy to control the presence or absence of magnetic force. In some cases, permanent magnets can also be used. When magnets are used, there are certain inconveniences in adjustment.

[0070] Reference Fig.19 In one embodiment, the second adjustment mechanism adopts a slide rail assembly 24, one side of the slide rail assembly 24 is connected to the horizontal adjustment plate 5, and the other side is connected to the base plate 51. The slide rail assembly 24 is used to adjust the lateral position of the horizontal adjustment plate 5. The horizontal adjustment plate 5 is provided with an adjusting bolt 6, one end of the adjusting bolt 6 is in contact with the base plate 51, and the horizontal adjustment plate 5 is pressed by screwing the adjusting bolt 6 to adjust the horizontality of the horizontal adjustment plate 5, thereby completing the horizontal adjustment of the imaging module 1. In a specific application, when calibrating a large-format optical machine, the slide rail assembly 24 can be used to achieve lateral movement of the imaging module 1, and then multiple formats of pictures can be taken, and format calibration is performed based on the multiple pictures. Furthermore, a slide groove is provided on the imaging fixed plate 2, and the imaging module 1 can be rotated by the slide groove to achieve shooting at different angles.

[0071] Second embodiment

[0072] Combined with reference Figure 4Different from the above-mentioned embodiment, the level adjustment assembly in this embodiment includes a first screw 20 and a second screw 21, wherein the end of the first screw 20 penetrates the base plate 51 and abuts against the lower surface of the level adjustment plate 5 upward, and the second screw 21 serves to connect and fix the base plate 51 and the level adjustment plate 5, and the base plate 51 and the level adjustment plate 5 are arranged relatively up and down with a set spacing. The first screw 20 and the second screw 21 are staggered along the length direction of the base plate 51 and the level adjustment plate 5, and the level adjustment plate 5 is adjusted by screwing the first screw 20 and pressing the level adjustment plate 5. The other parts of the calibration device refer to the first embodiment, and this embodiment will not be expanded.

[0073] Third embodiment

[0074] Combined with reference Figure 5 , the horizontal adjustment assembly provided by another embodiment of the present application includes a wedge block 23 and a third screw 22. The horizontal adjustment plate 5 and the base plate 51 are arranged relative to each other at a set distance. The first ends of the two are connected by the third screw 22. The wedge block 23 is inserted between the second ends of the horizontal adjustment plate 5 and the base plate 51. In order to facilitate the adjustment of the horizontality of the horizontal adjustment plate 5, at least one side of the wedge block 23 is provided with an inclined surface. The inclined surface side of the wedge block 23 is attached to the horizontal adjustment plate 5 or the base plate 51. By adjusting the length of the wedge block 23 inserted between the second ends of the horizontal adjustment plate 5 and the base plate 51, the distance between the second ends of the horizontal adjustment plate 5 and the base plate 51 is changed, and the horizontality of the horizontal adjustment plate 5 is adjusted.

[0075] In the illustrated embodiment, the upper end surface of the wedge block 23 is an inclined surface, and the wedge block 23 fits the lower end surface of the horizontal adjustment plate 5 with the inclined surface; in order to improve the fit between the wedge block 23 and the horizontal adjustment plate 5, the lower end surface of the horizontal adjustment plate 5 is provided with a contact surface that matches the inclined surface of the upper end surface of the wedge block 23, and the contact surface is also provided with an inclined surface. In addition, the wedge block 23 can also be a wedge block with inclined surfaces on both the upper and lower end surfaces, and the lower end surface of the horizontal adjustment plate 5 and the upper end surface of the base plate 51 can be provided with contact inclined surfaces that match the wedge block 23 as needed.

[0076] It can be understood that the first adjustment mechanism can not only adopt the substrate 51, the horizontal adjustment plate 5 and the level adjustment component arranged therebetween, but also directly adopt the pan-tilt assembly with level adjustment function. The pan-tilt assembly is an existing structure, and this application will no longer introduce its leveling principle.

[0077] Fourth embodiment

[0078] See also Figures 6 to 8 as well as Fig.15In this embodiment, the second adjustment mechanism is connected to the adjustment fixing seat, and the first adjustment mechanism is connected to the imaging fixing plate 2. The second adjustment mechanism adopts the first displacement stage 8, which is a combined manual displacement stage. In specific implementation, it can also be replaced by an electric displacement stage as needed. The first displacement stage 8 has the freedom of movement in the X direction, the freedom of movement in the Y direction, and the freedom of rotation in the XOY plane, that is, it can adjust the position in the X direction and the Y direction and adjust the angle in the XOY plane. The function is similar to the magnetic seat 10 in the first embodiment. The adjustment fixing seat can be connected to the bottom of the first displacement stage 8, or the base of the first displacement stage 8 can be used as the adjustment fixing seat and connected to the Z axis of the machine 001 to be detected.

[0079] The first adjustment mechanism also includes a horizontal adjustment plate 5, an adjustment bolt 6 and an adjustment spring 7. The top of the first displacement platform 8, i.e., the rotating platform, is provided with a plurality of sets of third screw holes. The horizontal adjustment plate 5 is provided with a plurality of sets of fourth screw holes corresponding to the third screw holes. The number and position of the corresponding fourth screw holes mentioned here correspond to the third screw holes one by one. The number of the adjustment bolts 6 and the adjustment spring 7 is equal to the number of the third screw holes. The adjustment bolts 6 pass through the third screw holes and the fourth screw holes to connect the top of the first displacement platform 8 and the horizontal adjustment plate 5. The adjustment springs 7 are sleeved on the adjustment bolts 6 one by one and are pressed between the top of the first displacement platform 8 and the horizontal adjustment plate 5, and have a certain supporting effect on the horizontal adjustment plate 5. In this embodiment, the imaging fixed plate 2 is an L-shaped plate, including a vertical plate and a horizontal plate. The horizontal adjustment plate 5 is connected to the imaging fixed plate 2, and includes a horizontal plate and a vertical plate. The horizontal plate of the horizontal adjustment plate 5 cooperates with the adjusting bolt 6 and the adjusting spring 7 to adjust the horizontality; the top of the vertical plate of the imaging fixed plate 2 is connected to the vertical plate of the horizontal adjustment plate 5, and the imaging module 1 is vertically fixed to the lower part of the vertical plate of the imaging fixed plate 2 close to the horizontal adjustment plate 5, and the horizontality measuring part 3 is placed above the horizontal plate of the imaging fixed plate 2.

[0080] On the basis of this embodiment, a Z-axis displacement table 4 can be added between the vertical plate of the horizontal adjustment plate 5 and the vertical plate of the imaging fixed plate 2 as needed. The Z-axis displacement table 4 has the freedom of adjustment in the vertical direction to adapt to the situation where it is inconvenient to install a fixed adjustment module on the Z axis of some machines 001 to be inspected.

[0081] When the optical-mechanical calibration is performed on the machine to be inspected 001, the optical-mechanical calibration device is first fixed to the Z-axis or top of the machine to be inspected 001 through the first displacement platform 8, and the distance of the imaging module 1 relative to the optical-mechanical projection in the Z direction is adjusted by using the Z-axis displacement platform 4 between the Z-axis or horizontal adjustment plate 5 of the machine to be inspected 001 and the imaging fixed plate 2; then, the adjustment bolts 6 at different positions are turned, and the horizontal adjustment plate 5 and the cross plate of the imaging fixed plate 2 are adjusted to be horizontal with the help of the horizontality measuring piece 3 on the imaging fixed plate 2; finally, the horizontal position and angle of the imaging fixed plate 2 are adjusted by the first displacement platform 8 to ensure that the imaging module 1 is located directly above the optical-mechanical projection of the machine to be inspected 001 and at an appropriate distance.

[0082] Fifth embodiment

[0083] Taking into account that some machines to be inspected 001 may have limited vertical installation space, the third embodiment of the present application provides a solution for changing the optical path between the imaging module 1 and the camera projection of the machine to be inspected 001 to facilitate the adjustment of the adjustment module. The specific solution is as follows.

[0084] See also Figures 9 to 11 as well as Fig.15 In this embodiment, the adjustment module mainly includes a horizontal adjustment plate 5 and a second displacement stage 9. The imaging fixed plate 2 is an L-shaped plate. The second displacement stage 9 is connected between the end of the horizontal adjustment plate 5 and the vertical plate of the imaging fixed plate 2. The imaging module 1 is horizontally installed below the horizontal plate of the imaging fixed plate 2. The horizontal measurement member 3 is arranged above the horizontal plate of the imaging fixed plate 2. The horizontal adjustment plate 5 is connected to the machine to be inspected 001, and the machine to be inspected 001 is kept horizontal by its own precision. The lower part of the horizontal adjustment plate 5 is connected to the fixed frame 13 at a predetermined inclination angle relative to the horizontal plane. A reflector 15 is installed in the fixed frame 13. The predetermined inclination angle is usually set to 45°. In specific implementation, a fixed frame 13 with an adjustable inclination angle hinged to the lower part of the horizontal adjustment plate 5 can also be used. There is no limitation here. After the horizontal adjustment plate 5 is installed to the machine to be inspected 001, the imaging module 1 is horizontally facing the reflector 15, and the reflector 15 reflects the mirror image of the optical machine projection to the imaging module 1. The second translation stage 9 is a combined translation stage like the first translation stage 8, and has the freedom of movement in the X direction, the freedom of movement in the Y direction, and the freedom of rotation in the XOY plane. The second translation stage 9 is used to adjust and drive the imaging fixing plate 2 and the imaging module 1 to approach and move away from the reflector 15. The optical path transformation through the reflector 15 is equivalent to the height adjustment of the Z image when the imaging module 1 is set vertically.

[0085] Furthermore, an adjusting screw 14 may be provided in the fixing frame 13 , and the reflector 15 may be mounted and fixed on the adjusting screw 14 , and the angle of the reflector 15 may be finely adjusted by rotating the fixing screw 14 .

[0086] Sixth embodiment

[0087] See also Figure 12 to Figure 14 In this embodiment, the adjustment module adopts a flexible universal seat 12, one end of the universal seat 12 is used to be installed and fixed to the machine to be detected 001, and the other end is connected to the imaging fixed plate 2. Here, the imaging fixed plate 2 also adopts an L-shaped plate including a horizontal plate and a vertical plate. The imaging module 1 is vertically fixed to the bottom of one side of the vertical plate of the imaging fixed plate 2, and a horizontal measuring member 3 is arranged above the horizontal plate of the imaging fixed plate 2. The universal seat 12 is connected and fixed to the top of the vertical plate of the imaging fixed plate 2 with the help of an adapter plate 11. In order to facilitate the installation and fixation of the universal seat 12 to the machine to be detected 001, the end of the universal seat 12 away from the imaging fixed plate 2 is connected to the magnetic fixing seat 19. The working principle of the magnetic fixing seat 19 refers to the magnetic seat 10 above. When the magnetic switch is turned off, the magnetism disappears and moves to a suitable height of the machine to be detected 001. When the magnetic switch is turned on, the magnetic fixing seat 19 is adsorbed and fixed to the machine to be detected 001. Then, with the help of the universal seat 12, the imaging module 1 is adjusted to the top of the machine to be detected 001 and the horizontal plate of the imaging fixed plate 2 is kept horizontal. The structure of the universal seat 12 is not limited to that shown in the drawings, and a suitable universal seat 12 can be selected according to the adjustment during the specific implementation.

[0088] The advantages of this solution are simple structure, strong versatility, easy installation and fixation, and it is suitable for optical machine calibration of different models of machines to be tested 001.

[0089] On the basis of the above embodiments, in order to further improve the imaging quality, the calibration device provided by the present application further includes an illumination module 18, which is preferably configured as a ring structure. The illumination module 18 is installed and fixed above the material tray of the machine to be inspected 001, and plays the role of illuminating the projection of the optical machine, which helps the imaging module 1 to improve the image quality and improve the calibration reliability. The structure of the illumination module 18 can be referred to Fig.16 , Fig.17 and / or Fig.18 , installation location reference Figure 3 , Figure 8 , Fig.11 and Fig.14 .

[0090] In some embodiments, the lighting module 18 is composed of a light bar 181, an angle fixture 182, a lighting fixing plate 183 and a lighting mounting seat 184. The attached figure takes four groups of light bars 181 and four angle fixtures 182 as an example, which is not limited to the specific implementation. The angle fixture 182 serves to connect adjacent light bars 181. Light bars 181 of equal / unequal lengths are connected together through the angle fixture 182. The angle fixture 182 can be inserted into the track groove of the light bar 181, and then the angle fixture 182 and the four light bars 181 are screwed to form a ring light. The angle fixture is provided with a saddle seat 185 to facilitate the fixing of the wiring. The outer sides of the light bars 181 on both sides of the length direction of the ring light are connected to the lighting fixing plate 183. The lighting fixing plate 183 and the lighting mounting seat 184 are slidably connected through the groove rail structure to adjust the height of the ring light. The assembled lighting module 18 is placed above the material tray of the machine 001 to be inspected through the lighting mounting seat 184.

[0091] In some embodiments, Fig.18 As shown, the lighting module includes a light bar 181 and a lighting mounting seat 184. One side of the lighting mounting seat 184 abuts against the material tray, and the light bar 181 is distributed around the lighting mounting seat 184 on the side away from the material tray. In this embodiment, the light bar 181 and the lighting mounting seat 184 can adopt an integrated structure, and the bottom of the lighting mounting seat 184 is clamped with the material tray, and the material tray can be used for positioning, thereby ensuring the optimal lighting layout, and no shadow is formed on the calibration plate.

[0092] It is understandable that the structure of the lighting mounting base 184 and the lifting and lowering adjustment of the lighting module 18 are not limited to those shown in the drawings. A magnetic fixing base can also be used to fix the entire lighting module 18 to a suitable height of the rack of the machine to be tested 001.

[0093] In the above embodiment, handles 17 may be provided on both sides of the horizontal adjustment plate 5 as required to facilitate the movement of the entire optical-mechanical calibration device.

[0094] The calibration device provided in the embodiment of the present application can realize calibration work in multiple scenarios such as within the factory and on the client side, broadening the scope of application. The entire calibration device is simple to operate and easy to adjust, which greatly improves the calibration efficiency. The calibration device is universal and suitable for multiple models and platforms and has a wide range of applications.

[0095] It should be understood that the terms used in the text are only for the purpose of describing specific example embodiments, and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used in the text may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0096] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0097] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A calibration device, characterized in that: It comprises an imaging module, an imaging fixing part and an adjusting module; the imaging module is arranged on the imaging fixing part, one end of the adjusting module is used to be installed on the machine to be inspected, and the other end is connected to the imaging fixing part; wherein the adjusting module is used to drive the imaging fixing part to move so as to adjust the relative position of the imaging module relative to the optical machine of the machine to be inspected.

2. The calibration device according to claim 1, characterized in that: The adjustment module comprises: A first adjustment mechanism, used for adjusting the horizontality of the imaging fixing portion; a second adjustment mechanism, connected to the first adjustment mechanism and used to adjust the lateral position, longitudinal position and / or angle of the imaging fixing portion; Adjust the fixing seat for installation on the machine to be tested; One of the first adjustment mechanism and the second adjustment mechanism is connected to the adjustment fixing seat, and the other is connected to the imaging fixing portion.

3. The calibration device according to claim 2, characterized in that: The first adjustment mechanism includes a base plate, a level adjustment plate, and at least one set of level adjustment components. The level adjustment components are arranged between the base plate and the level adjustment plate, and are used to adjust the horizontality of the level adjustment plate.

4. The calibration device according to claim 3, characterized in that: The horizontal adjustment component includes an adjustment spring and an adjustment bolt. The base plate is provided with a plurality of first screw holes. The horizontal adjustment plate is provided with second screw holes corresponding to the first screw holes. The adjustment bolt passes through the first screw hole and the second screw hole to connect the base plate and the horizontal adjustment plate. The adjustment spring is sleeved on the adjustment bolt and pressed between the base plate and the horizontal adjustment plate.

5. The calibration device according to claim 3, characterized in that: The horizontal adjustment assembly includes a first screw and a second screw. One end of the first screw passes through the base plate and abuts against the horizontal adjustment plate. The second screw is used to connect the base plate and the horizontal adjustment plate.

6. The calibration device according to claim 3, characterized in that: The horizontal adjustment assembly includes a wedge block and a third screw. The two sides of the wedge block are respectively abutted against the base plate and the horizontal adjustment plate. The horizontal adjustment plate is provided with a contact surface opposite to the inclined surface of the wedge block. The third screw is used to connect the base plate and the horizontal adjustment plate.

7. The calibration device according to claim 2, characterized in that: The first adjustment mechanism includes a pan / tilt assembly.

8. The calibration device according to claim 3, characterized in that: The adjustment fixing seat is a base, and the base includes a base block, one end of the base block is connected to the substrate, and the other end of the base block is used to connect to the Z axis of the machine to be tested; The second adjustment mechanism connects the horizontal adjustment plate and the imaging fixing portion.

9. The calibration device according to claim 3, characterized in that: The second adjustment mechanism includes a magnetic adsorption component or a slide rail component.

10. The calibration device according to claim 3, characterized in that: The second adjustment mechanism is a first translation stage, the first translation stage has a degree of freedom of movement in the X direction, a degree of freedom of movement in the Y direction, and a degree of freedom of rotation in the XOY plane; the adjustment fixing seat is connected to the first translation stage; the substrate is arranged on the top of the first translation stage; A Z-axis translation stage is connected between the horizontal adjustment plate and the imaging fixing portion, and the Z-axis translation stage has a vertical degree of freedom of movement.

11. The calibration device according to claim 1, characterized in that: The adjustment module includes a horizontal adjustment plate and a second translation stage connected between the horizontal adjustment plate and the imaging fixed part, wherein the second translation stage has a movement degree of freedom in an X direction, a movement degree of freedom in a Y direction, and a rotation degree of freedom in an XOY plane; The imaging module is horizontally fixed to the imaging fixing portion; The lower side of the horizontal adjustment plate is connected to a fixed frame at a preset inclination angle relative to the horizontal plane. A reflector is arranged inside the fixed frame. The reflector is used to reflect the optical-mechanical projection of the machine to be inspected to the imaging module.

12. The calibration device according to claim 1, characterized in that: The adjustment module is a universal seat, one end of which is connected to the imaging fixing part, and the other end is connected to a magnetic fixing seat, and the magnetic fixing seat is used for magnetic adsorption to the machine to be detected.

13. The calibration device according to any one of claims 1 to 12, characterized in that: The imaging fixing part comprises a vertical plate and a horizontal plate, and a levelness measuring member is fixed above the horizontal plate.

14. The calibration device according to claim 1, characterized in that: It also includes a lighting module, which is used to be fixed above the material tray of the machine to be inspected.

15. The calibration device according to claim 14, characterized in that: The lighting module includes a light bar, an angle fixture, a lighting fixture plate and a lighting mounting seat; The corner fixing members are connected between adjacent light bars, and the light bars and the corner fixing members are sequentially connected to form a ring structure; The lighting fixing plate is connected to the light bar, and the lighting mounting seat and the lighting fixing plate are slidably connected through a groove rail.

16. The calibration device according to claim 14, characterized in that: The lighting module includes a light bar and a lighting mounting seat; One side of the lighting mounting seat is in contact with the material tray, and the light strips are distributed around a side of the lighting mounting seat away from the material tray.

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