Parameter measuring device

Abstract

The utility model discloses a parameter measuring device (100). The parameter measuring device (100) comprises a positioning piece (10), an imaging device (20) and a driving mechanism (30). The positioning piece (10) is used for positioning a tool rest (200) with a tool (230), and the tool (230) has a first parameter; the imaging device (20) is used for acquiring an image of a to-be-detected area of the knife rest (200); the image can be used for acquiring a measured value of the first parameter; the driving mechanism (30) is used for driving the imaging device (20) to move and / or driving the positioning piece (10) to move so as to adjust the relative position of the cutter (230) and the imaging device (20). By means of the arrangement, the measured value of the first parameter of the cutter (230) can approach the true value of the first parameter of the cutter (230), accurate adjustment of the relative position of the imaging device (20) and the cutter (230) can be achieved, and the parameter measurement accuracy of the cutter (230) can be improved.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing technology, specifically to a parameter measuring device. Background Technology

[0002] In the battery manufacturing process, cutting operations are typically performed using cutting tools. Before the cutting operation, the parameters of the cutting tools need to be measured to facilitate parameter adjustment, thereby helping to improve the accuracy and quality of the cutting operation.

[0003] However, in some cases, the accuracy of the tool parameters obtained when measuring them is low, making it difficult to provide a reliable data basis for tool parameter adjustment. Utility Model Content

[0004] The purpose of this application is to provide a parameter measuring device that can improve the problem of low parameter measurement accuracy of cutting tools.

[0005] The technical solution adopted in the embodiments of this application is:

[0006] In a first aspect, a parameter measuring device is provided, comprising:

[0007] A positioning element for positioning a tool holder with a cutting tool having a first parameter;

[0008] An imaging device is used to acquire an image of the area to be measured on the tool holder; the image can be used to acquire a measurement value of a first parameter;

[0009] A drive mechanism is used to drive the imaging device to move and / or drive the positioning component to move, so as to adjust the relative position of the tool and the imaging device.

[0010] By adopting the above technical solution, the movement of the imaging device and / or the tool holder and the tool on it can be driven by the driving mechanism, thereby adjusting the measured value of the first parameter of the tool. This allows the first parameter to approach its true value, thus reducing the offset of the tool relative to the imaging device, and enabling precise adjustment of the relative position between the imaging device and the tool. Based on this, the image acquired by the imaging device can realistically and accurately display the tool parameters, improving the accuracy of tool parameter measurement and providing a reliable data basis for tool parameter adjustment.

[0011] In some embodiments, the first parameter is the thickness of the cutting tool.

[0012] By adopting the above technical solution, when adjusting the relative position of the cutting tool and the imaging device, by comparing the measured thickness of the cutting tool with the actual thickness of the cutting tool, the parameters such as the fitting degree and end face runout of the cutting tool obtained after adjusting the relative position of the cutting tool and the imaging device can have higher accuracy.

[0013] In some embodiments, the parameter measuring device further includes a control system electrically connected to the drive mechanism and the imaging device, and used to control the drive mechanism to drive the imaging device to move and / or drive the positioning member to move, so that the measured value of the first parameter is within a preset threshold range.

[0014] By adopting the above technical solutions, the parameter accuracy of the cutting tool can be improved, the adjustment efficiency and accuracy of the relative position between the cutting tool and the imaging device can be improved, and the focusing efficiency of the imaging device can also be improved.

[0015] In some embodiments, the parameter measuring device is used to measure the parameters of the cutting tool, which include at least one of the following: tool fit, tool overlap, and end face runout.

[0016] By adopting the above technical solution, the control system can obtain different parameters of the tool based on different types of tool holders.

[0017] In some embodiments, the imaging device has a lens through which it acquires an image of the area to be measured; or, the imaging device includes a microscope.

[0018] By adopting the above technical solution, the imaging device can be configured as a microscope or a camera.

[0019] In some embodiments, the lens is a telecentric lens.

[0020] By adopting the above technical solution, the lens of the imaging device is set as a telecentric lens. The telecentric lens has a higher resolution and can effectively improve problems such as single lens, small depth of field, local image blurring, and unclear image. Therefore, it can clearly and accurately obtain the image of the area to be measured of the tool holder, thereby improving the parameter accuracy of the tool.

[0021] In some embodiments, the parameter measuring device further includes a supplementary light, the supplementary light and the imaging device are distributed at intervals, and the supplementary light is used to emit light toward the area to be measured.

[0022] By adopting the above technical solution, when the parameter measuring device is working, the supplementary light can emit light towards the area to be measured on the tool holder to achieve a supplementary lighting effect. In this way, the image of the area to be measured acquired by the imaging device can be clearer, thereby improving the accuracy of the tool parameters.

[0023] In some embodiments, the drive mechanism is used to drive the imaging device to rotate and / or drive the positioning element to rotate, so as to adjust the measured value of the first parameter.

[0024] By adopting the above technical solution, the first parameter, such as the measured value of the tool thickness, can be adjusted through the drive mechanism to accurately adjust the relative position of the imaging device and the tool, thereby improving the parameter accuracy of the tool.

[0025] In some embodiments, the drive mechanism includes a driver and a transmission assembly, the transmission assembly being connected to the output of the driver and to an imaging device or a positioning element.

[0026] By adopting the above technical solution, the drive mechanism consists of a driver and a transmission assembly, allowing for diverse and flexible structural forms. Furthermore, the transmission assembly contributes to the high smoothness of the rotation of the positioning component or imaging device.

[0027] In some embodiments, the positioning member is provided with a positioning groove, the positioning groove having an opening for the tool holder to enter and exit the positioning groove in a first direction; the positioning groove is provided with a first positioning part on the other side of the opening in the first direction, the first positioning part being used to limit the tool holder in the first direction.

[0028] By adopting the above technical solution, the operation of positioning the tool holder on the positioning component can be made very simple and convenient.

[0029] In some embodiments, the positioning groove is provided with a second positioning part for limiting the tool holder on both sides along the second direction, and the first direction and the second direction intersect.

[0030] By adopting the above technical solution, the relative positional stability between the tool holder and the imaging device can be achieved.

[0031] In some embodiments, the parameter measuring device further includes a first moving mechanism and a second moving mechanism. The first moving mechanism is used to drive the positioning member and the tool holder to reciprocate along a third direction, and the second moving mechanism is used to drive the first moving mechanism, the positioning member, and the tool holder to reciprocate along a fourth direction. The third and fourth directions intersect.

[0032] By adopting the above technical solution, the positioning component can be moved in two different directions through the first and second moving mechanisms, which can achieve a coarse adjustment effect on the relative position between the tool holder and the imaging device, thus facilitating the entry of the area to be measured of the tool holder into the imaging field of view of the imaging device. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the tool holder for scenario one;

[0035] Figure 2This is a schematic diagram of the tool holder in scenario two;

[0036] Figure 3 This is a schematic diagram of the tool holder in scenario three;

[0037] Figure 4 This is a schematic diagram of the tool holder for scenario four;

[0038] Figure 5 Three-dimensional schematic diagram of the parameter measuring device provided in some embodiments of this application Figure 1 ;

[0039] Figure 6 A front view of a parameter measuring device provided in some embodiments of this application;

[0040] Figure 7 for Figure 5 The parameters obtained by the provided measuring device Figure 1 A schematic diagram of the image of the region A to be tested;

[0041] Figure 8 for Figure 7 A magnified view of a portion at point E;

[0042] Figure 9 for Figure 8 A schematic diagram showing the first cutter shaft in rotation state;

[0043] Figure 10 for Figure 9 A schematic diagram after the first cutter shaft has rotated at least one revolution;

[0044] Figure 11 for Figure 5 The parameters obtained by the provided measuring device Figure 2 A schematic diagram of the image of the region B to be tested;

[0045] Figure 12 for Figure 11 A schematic diagram showing the first cutter shaft in rotation state;

[0046] Figure 13 for Figure 12 A schematic diagram after the first cutter shaft has rotated at least one revolution;

[0047] Figure 14 for Figure 5 The parameters obtained by the provided measuring device Figure 3 A schematic diagram of the image of the region C to be tested;

[0048] Figure 15 for Figure 5 The parameters obtained by the provided measuring device Figure 4 A schematic diagram of the image of the region D to be tested;

[0049] Figure 16 for Figure 15 A schematic diagram of the first cutting tool in its initial state;

[0050] Figure 17 Schematic diagram of a parameter measuring device provided in some embodiments of this application;

[0051] Figure 18 for Figure 5 Side view of the provided parameter measuring device;

[0052] Figure 19 for Figure 5 Enlarged view at point F;

[0053] Figure 20 A three-dimensional schematic diagram of the parameter measuring device provided in the embodiments of this application. Figure 2 ;

[0054] Figure 21 for Figure 20 Enlarged view of point G in the middle;

[0055] Figure 22 A three-dimensional schematic diagram of the parameter measuring device provided in the embodiments of this application. Figure 3 ;

[0056] Figure 23 for Figure 22 Enlarged view of section H in the middle;

[0057] Figure 24 A flowchart of the parameter measurement method provided in the embodiments of this application.

[0058] The following are the labeling elements in the figure:

[0059] 100 - Parameter measuring device; 200 - Tool holder; 210 - Mounting bracket; 220 - Tool shaft; 220a - First tool shaft; 220b - Second tool shaft; 230 - Tool; 230a - First tool; 230b - Second tool; 10 - Positioning component; 101 - Positioning groove; 102 - Opening; 11 - First positioning part; 12 - Second positioning part; 20 - Imaging device; 21 - Lens; 22 - Camera body; 30 - Drive mechanism; 31 - Driver; 32-Transmission assembly; 321-Gear; 33-Connecting shaft; 40-Control system; 50-Supplemental light; 60-First moving mechanism; 61-Moving component; 62-First screw; 63-First screwed connector; 64-First guide rail; 65-First sliding component; 70-Second moving mechanism; 71-Rotating component; 72-Second screw; 73-Second screwed connector; 74-Second guide rail; 75-Second sliding component; 80-Frame; M-First mark; N-Second mark. Detailed Implementation

[0060] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0061] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0063] In the description of this application, "multiple" means two or more, and unless otherwise expressly specified, "two or more" includes two. Accordingly, "multiple groups" means two or more groups, including two groups.

[0064] In the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0065] In the description of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three possibilities: A exists, A and B exist simultaneously, and B exists. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0066] In the battery manufacturing process, cutting operations are required, such as the slitting process for cutting sheet materials like electrode plates. In the slitting process, two slitting blades of a blade holder are arranged on both sides of the sheet and positioned appropriately to slit the sheet.

[0067] In the slitting process, precise adjustment of the slitting blade parameters, especially the relative position parameters of the two blades—such as the overlap, fit, and runout of the blades—can ensure a more accurate positioning of the blades relative to the sheet, thereby significantly improving the processing precision and quality. Therefore, before the slitting process, it is necessary to measure the slitting blade parameters, particularly the relative position parameters, to facilitate their adjustment.

[0068] Before measuring the parameters of the slitting blade, the relative position between the slitting blade and the microscope needs to be adjusted so that the area to be measured by the slitting blade is within the imaging field of view of the microscope.

[0069] However, during their research, the inventors discovered that in some cases, the relative position of the slitting blade and the microscope could only be adjusted through coarse adjustments. That is, during adjustment, it was sufficient to simply move the slitting blade so that the area to be measured by the slitting blade entered the microscope's imaging field of view. Because of this, it was difficult to precisely adjust the relative position between the slitting blade and the microscope, resulting in low precision of the slitting blade parameters obtained from the image formed by the microscope, thus making it difficult to provide a reliable data basis for adjusting the slitting blade parameters.

[0070] Based on the above considerations, the inventors, after in-depth research, designed a parameter measuring device, namely the parameter measuring device mentioned in the first aspect of the embodiments of this application. By driving the imaging device to move and / or driving the slitting blade on the tool holder to move through a driving mechanism, the measured value of the first parameter of the tool acquired through the image can be adjusted. This allows the measured value of the first parameter of the slitting blade to be infinitely close to its true value, thereby reducing the offset of the slitting blade relative to the imaging device, that is, enabling precise adjustment of the relative position between the imaging device and the slitting blade. Based on this, the image acquired by the imaging device can realistically and accurately display the parameters of the slitting blade, improving the accuracy of the parameter measurement of the slitting blade and providing a reliable data basis for the parameter adjustment of the slitting blade.

[0071] It should be added that in the battery manufacturing process, when cutting and slitting operations are performed using tools other than slitting tools, it is usually necessary to adjust the parameters of the tool, and therefore it is also necessary to measure the parameters of the tool.

[0072] It is understood that the parameter measuring device involved in the embodiments of this application is used to measure the parameters of a cutting tool, which can be the slitting tool mentioned above, or other cutting tools besides slitting tools. Specifically, the parameter measuring device involved in the embodiments of this application is mainly used to measure the parameters of a slitting tool, but it can also be used to measure the parameters of other cutting tools besides slitting tools. In addition, the parameter measuring device involved in the embodiments of this application can be applied to the parameter measurement of cutting tools in the field of battery manufacturing, and can also be applied to the parameter measurement of cutting tools in other fields outside the field of battery manufacturing, and this application does not limit it in this regard.

[0073] As mentioned above, although the parameter measuring device involved in the embodiments of this application is based on the slitting blade used in battery manufacturing, its applicable scenarios are not limited to this. It can be used in any scenario that requires measuring and adjusting the blade.

[0074] Furthermore, the parameter measuring device involved in the embodiments of this application is not limited to measuring two cutting tools, but can also be used to measure one, three, or other quantities of cutting tools.

[0075] The parameter measuring device involved in this application embodiment is mainly used to measure parameters such as tool overlap, tool fit, and tool end face runout. The specific definitions of the tool parameters will be explained below based on several tool holder scenarios, and will not be elaborated upon here.

[0076] To facilitate the description of the solution in this application, the embodiments of this application are described using a slitting knife as an example.

[0077] To facilitate the description of the technical solutions of this application, several tool holders applicable to the parameter measuring devices involved in the embodiments of this application are described below. Of course, the following description of tool holders in several cases is only for the convenience of describing the technical solutions of this application, and does not limit the specific structure of the tool holder; that is, the structure of the tool holder is not limited to these.

[0078] In some embodiments, such as Figure 1 and Figure 2 As shown, the tool holder 200 includes a mounting bracket 210, a tool shaft 220, and a tool 230. The tool shaft 220 is shaft-shaped or cylindrical and has a rotation axis. The tool shaft 220 is rotatably connected to the mounting bracket 210 and can rotate relative to the mounting bracket 210 about its own rotation axis. The tool 230 is disposed on the tool shaft 220 and can rotate with the tool shaft 220 when the tool shaft 220 rotates. The tool 230 has a thickness direction, which is parallel to the axial direction of the tool shaft 220. The axial direction of the tool shaft 220 is parallel to its own rotation axis. Specifically, in Figure 1 and Figure 2 In the embodiments shown in the figure, the direction Y can be referred to.

[0079] In some cases, such as Figure 1 As shown, there are two cutter shafts 220, each equipped with a cutter 230. Specifically, the two cutter shafts 220 are designated as a first cutter shaft 220a and a second cutter shaft 220b. The cutter 230 on the first cutter shaft 220a is the first cutter 230a, and the cutter 230 on the second cutter shaft 220b is the second cutter 230b. The rotation axis of the first cutter shaft 220a and the rotation axis of the second cutter shaft 220b are parallel, and the first cutter shaft 220a and the second cutter shaft 220b are radially spaced apart along the first cutter shaft 220a. Specifically, in Figure 1 In this embodiment, the distribution direction of the first tool axis 220a and the second tool axis 220b is parallel to the direction Z in the figure. For example... Figure 1 As shown, in this embodiment, the number of cutting tools 230 on the tool holder 200 is also two, that is, the number of the first cutting tool 230a and the second cutting tool 230b is one each. Of course, in other embodiments, the number of cutting tools 230 can also be three, four, etc., that is, the number of the first cutting tool 230a can be one or more, and the number of the second cutting tool 230b can also be one or more.

[0080] Here, we will take the tool holder 200 with two tools 230 as an example for explanation: Figure 1 As shown, when the electrode sheet or other sheet material passes between the first cutter shaft 220a and the second cutter shaft 220b, both the first cutter shaft 220a and the second cutter shaft 220b rotate around their own rotation axes, and the rotation direction of the first cutter shaft 220a is opposite to that of the second cutter shaft 220b. Therefore, the rotation direction of the first cutter 230a and the second cutter 230b also corresponds to their opposite directions. Based on this, the first cutter 230a and the second cutter 230b cooperate to cut the sheet material, dividing it into two parts distributed sequentially along the Y direction. In some embodiments, the sheet material may be fed in a direction perpendicular to the YZ plane, but not limited to this. In this case, the feeding direction of the sheet material is perpendicular to both the Y and Z directions. For details, please refer to [reference needed]. Figure 5 The direction X is indicated in the diagram. The first cutter 230a has a cutting tip at one end facing the second cutter shaft 220b along the direction Z for cutting the sheet.

[0081] In other cases, such as Figure 2 As shown, there is one tool shaft 220. The tool 230 on this tool shaft 220 can be one or more. When there is only one tool shaft 220, this tool shaft 220 is defined as the first tool shaft 220a, and the tool 230 on this tool shaft 220 is defined as the first tool 230a.

[0082] Here, we take one example, where the number of cutting tools 230 on the cutter shaft 220 is considered: For instance... Figure 2As shown, when the electrode sheet or other sheet passes through the first cutter shaft 220a along one side of the Z direction, the first cutter shaft 220a can rotate relative to the mounting bracket 210 around its own rotation axis, thereby driving the first cutter 230a on it to rotate, so that the first cutter 230a cuts the sheet, dividing the sheet into two parts distributed sequentially along the Y direction. In this case, when the sheet is fed, it needs to be in a relatively taut state so that the first cutter 230a can cut the sheet. The sheet can be fed, but is not limited to, along a direction perpendicular to the YZ plane. In this case, the feeding direction of the sheet is perpendicular to both the Y and Z directions. For details, please refer to [reference needed]. Figure 5 The direction X is indicated in the diagram. The first cutter 230a has a cutting tip at one end along the direction Z for cutting the sheet.

[0083] In other embodiments, such as Figure 3 and Figure 4 As shown, the tool holder 200 includes a mounting bracket 210 and a tool 230. The tool 230 is linearly movably mounted on the mounting bracket 210. Wherein, Figure 3 and Figure 4 In this embodiment, the movement direction of the tool 230 relative to the mounting bracket 210 is parallel to the direction Z shown in the figure, and the thickness direction of the tool 230 is the direction Y shown in the figure. Optionally, a device such as an electric cylinder, pneumatic cylinder, or linear motor that can drive the tool 230 to move linearly can be provided between the tool holder 200 and the mounting bracket 210.

[0084] In some cases, such as Figure 3 As shown, the mounting bracket 210 has cutters 230 on both opposite sides along the Z direction. The cutter 230 on one side of the mounting bracket 210 along the Z direction is a first cutter 230a, and the cutter 230 on the other side of the mounting bracket 210 along the Z direction is a second cutter 230b. Wherein, as... Figure 3 As shown, in this embodiment, there are two cutting tools 230, that is, there is one first cutting tool 230a and one second cutting tool 230b. The first cutting tool 230a and the second cutting tool 230b are distributed sequentially along the Z direction and can move towards each other or away from each other along the Z direction. Of course, in other embodiments, the number of cutting tools 230 can also be three, four, etc., that is, the number of first cutting tools 230a can be one or more, and the number of second cutting tools 230b can also be one or more.

[0085] Here, we will take the tool holder 200 with two tools 230 as an example for explanation: Figure 3As shown, when the electrode sheet or other sheet passes between the first cutter 230a and the second cutter 230b, the first cutter 230a and the second cutter 230b move towards each other along direction Z to cooperate in cutting the sheet along direction Z, thereby dividing the sheet into two parts along direction Y. The sheet can be fed in, but is not limited to, directions parallel to the XY plane; in this case, the feeding direction of the sheet is parallel to both directions X and Y. The end of the first cutter 230a facing the second cutter 230b along direction Z has a cutting tip for cutting the sheet.

[0086] In other cases, such as Figure 4 As shown, the mounting bracket 210 has a cutter 230 on only one side. The number of cutters 230 can be one or more. This cutter 230 is defined as the first cutter 230a.

[0087] Here, we will take the mounting bracket 210 having a tool 230 as an example for explanation: Figure 4 As shown, when the electrode sheet or other sheet passes through one side of the first cutter 230a along direction Z, the first cutter 230a moves towards the sheet along direction Z to cut the sheet, thereby dividing the sheet into two parts along direction Y. In this case, the sheet needs to be in a relatively taut state during the feeding motion so that the first cutter 230a can cut the sheet. The sheet can be fed, but is not limited to, along directions parallel to the XY plane; in this case, the feeding direction of the sheet is parallel to both direction X and direction Y. The first cutter 230a has a cutting tip at one end along direction Z for cutting the sheet.

[0088] In the embodiments described above and below, the cutter shaft 220 can be either a first cutter shaft 220a or a second cutter shaft 220b. The cutting tool 230 can be either a first cutting tool 230a or a second cutting tool 230b.

[0089] The above-mentioned scenarios primarily describe embodiments where the tool 230 is in its standard installation state. Therefore, the directions X, Y, and Z mentioned above and below refer to the directions determined when the tool 230 is in its standard installation state. For example, as... Figure 1 and Figure 2 As shown, it can be understood that the mounting bracket 210, the cutter shaft 220, and the cutter 230 are installed in a standard and precise state. In this state, the thickness direction of the cutter 230 is exactly parallel to the axial direction of the cutter shaft 220, both parallel to the Y direction. The first cutter shaft 220a and the second cutter shaft 220b are spaced apart along the Z direction. For example, as... Figure 3 and Figure 4 As shown, it can be understood that the mounting bracket 210 and the tool 230 are installed in a standard and precise state, with the thickness direction of the tool 230 being exactly parallel to the Y direction and the movement direction of the tool 230 being exactly parallel to the Z direction.

[0090] Furthermore, the directions X, Y, and Z mentioned below are determined under conditions where the relative positions of the tool 230 and the imaging device 20 are adjusted by the parameter measuring device 100 to accurately measure the parameters of the tool 230. They can also be understood as directions determined when the measured value of the first parameter approaches its true value. Specifically, the directions mentioned below... Figures 7 to 16 In the schematic image, the two-dimensional plane containing the image is substantially parallel to the dimension direction of the first parameter, and the portion of the tool 230 with the first parameter is entirely located within the image; that is, through... Figures 7 to 16 The measured value of the first parameter is close to the true value of the first parameter.

[0091] Please refer to the following: Figure 5 and Figure 6 The parameter measuring device 100 involved in this application embodiment mainly includes a positioning member 10, an imaging device 20, and a driving mechanism 30. The positioning member 10 is used to position a tool holder 200, which has a tool 230, and the tool 230 has a first parameter. The imaging device 20 is used to acquire an image of the area to be measured on the tool holder 200. The image acquired by the imaging device 20 can be used to obtain the measured value of the first parameter. In some embodiments, such as... Figure 5 As shown, the drive mechanism 30 is used to drive the positioning member 10 to move, thereby simultaneously realizing the movement of the positioning member 10 and the tool holder 200; or, in some other embodiments, the drive mechanism 30 is used to drive the imaging device 20 to move; or, in still other embodiments, the drive mechanism 30 can be used to drive the imaging device 20 and the positioning member 10 to move. In all the above embodiments, the relative position of the tool 230 and the imaging device 20 can be adjusted by the driving operation of the drive mechanism 30, thereby adjusting the measured value of the first parameter to approach the true value of the first parameter.

[0092] It should be noted that the parameter measuring device 100 involved in this application embodiment is mainly used to first adjust the relative position between the imaging device 20 and the cutting tool 230. After the relative position of the imaging device 20 and the cutting tool 230 is precisely adjusted, the parameters of the cutting tool 230 are obtained based on the image obtained after adjusting the relative position. Specifically, during the process of adjusting the relative position of the imaging device 20 and the cutting tool 230, the measured value of the first parameter of the cutting tool 230 is obtained mainly through the image, and the measured value of the first parameter is compared with the true value of the first parameter. Based on the comparison result of the measured value and the true value of the first parameter, the imaging device 20 and / or the positioning member 10 are driven to move through the driving mechanism 30, so that the measured value of the first parameter of the cutting tool 230 approaches the true value of the first parameter, thereby enabling precise adjustment of the relative position between the imaging device 20 and the cutting tool 230. Therefore, based on the precise relative position between the imaging device 20 and the cutting tool 230, the accuracy of the parameters of the cutting tool 230 obtained through the image can be improved.

[0093] Before measuring the parameters of the cutting tool 230, it is necessary to first measure the true value of the first parameter of the cutting tool 230. The true value of the first parameter of the cutting tool 230 can be observed and measured using devices such as microscopes or cameras. Furthermore, to facilitate the measurement of the true value of the first parameter of the cutting tool 230, it is also possible, but not limited to, removing the cutting tool 230 from the mounting bracket 210 for measurement. In addition, the measurement of the true value of the first parameter of the cutting tool 230 can also be aided by, but not limited to, positioning molds.

[0094] The images are multi-frame, and the acquired images change as the relative position between the tool 230 and the imaging device 20 changes. Understandably, the images are continuously updated as the relative position of the imaging device 20 and the tool 230 is constantly adjusted. When the adjustment of the relative position between the imaging device 20 and the tool 230 ends, the parameters of the tool 230 can be obtained from the image corresponding to the end of the adjustment. Alternatively, the images can continue to be updated, and the parameters of the tool 230 can be obtained from the updated images.

[0095] The positioning element 10 refers to the component that can position the tool holder 200. After the tool holder 200 is positioned on the positioning element 10, when the drive mechanism 30 drives the positioning element 10 to move, the tool holder 200 can move with the positioning element 10; that is, the tool holder 200 can move synchronously with the positioning element 10. Specifically, the tool holder 200 being positioned on the positioning element 10 means that the mounting bracket 210 of the tool holder 200 is positioned on the positioning element 10.

[0096] Imaging device 20 refers to a device with imaging function. During the imaging process, imaging device 20 acquires an image of an object located within its imaging field of view. In this embodiment, the imaging device 20 applied to parameter measuring device 100 is mainly used to acquire an image of the area to be measured of tool holder 200. Specifically, during the process of positioning tool holder 200 on positioning member 10, or after positioning tool holder 200 on positioning member, it is also necessary to bring the area to be measured of tool holder 200 into the imaging field of view of imaging device 20. Based on this, the image acquired by imaging device 20 after imaging operation can display the area to be measured of tool holder 200, that is, imaging device 20 can acquire an image of the area to be measured of tool holder 200.

[0097] The imaging device 20 may be, but is not limited to, a camera, microscope, or other device with imaging capabilities.

[0098] The area to be measured on the tool holder 200 refers to the area of ​​the tool holder 200 that needs to be measured. Specifically, in this embodiment, at least a portion of the cutting tool 230 on the tool holder 200 is located within the area to be measured on the tool holder 200. That is, in the image of the area to be measured on the tool holder 200 acquired by the imaging device 20, such as... Figure 7 , Figure 11 , Figure 14 and Figure 15 As shown, at least a portion of the tool 230 can be displayed, which may be all or part of the tool 230.

[0099] in, Figure 7 Acquired by imaging device 20 Figure 1 A schematic diagram of the test area A of the tool holder 200; Figure 11 Acquired by imaging device 20 Figure 2 A schematic diagram of the test area B of the tool holder 200; Figure 14 Acquired by imaging device 20 Figure 3 A schematic diagram of the test area C of the tool holder 200; Figure 15 Acquired by imaging device 20 Figure 4 A schematic diagram of the area D to be tested on the tool holder 200.

[0100] like Figure 6As shown, the light-incident side S1 of the imaging device 20 is located on one side of the imaging device 20 along the X direction, and the imaging field of view of the imaging device 20 is located on the light-incident side S1. When the tool holder 200 is positioned on the positioning member 10, or after the tool holder 200 is positioned on the positioning member 10, the area to be measured of the tool holder 200 is located on one side of the imaging device 20 along the X direction, and the light-incident side S1 of the imaging device 20 is directly opposite the area to be measured of the tool holder 200 along the X direction. This ensures that the area to be measured of the tool holder 200 is within the imaging field of view of the imaging device 20. In this way, the imaging device 20 can acquire an image of the area to be measured of the tool holder 200.

[0101] "The image can be used to acquire the first parameter of the tool 230" means that the portion of the tool 230 containing the first parameter is completely located in the image. Specifically, when the imaging device 20 images, the portion of the tool 230 containing the first parameter is completely located within the imaging field of view of the imaging device 20. Furthermore, in the image acquired by the imaging device 20, the two-dimensional plane containing the image is not perpendicular to the dimension direction of the first parameter. Therefore, the measured value of the first parameter can be acquired through the image.

[0102] The imaging device 20 can be started and perform imaging work under manual or computer control.

[0103] After the imaging device 20 acquires an image of the area to be measured on the tool holder 200, the image acquired by the imaging device 20 can be obtained manually or by computer, and the image can be processed to obtain the first parameter of the tool 230.

[0104] In some embodiments, the first parameter can be the thickness of the tool 230, as detailed in the following references. Figure 7 , Figure 11 , Figure 14 and Figure 15 The dimension L1 in the image shown. At this time, the thickness measurement value of the tool 230 is the measurement value of the first parameter, and the actual thickness of the tool 230 is the actual value of the first parameter. At this time, the thickness direction of the tool 230 is the dimensional direction of the first parameter; specifically, the thickness measurement direction of the tool 230 is the dimensional direction of the measured value of the first parameter, and the actual thickness direction of the tool 230 is the dimensional direction of the actual value of the first parameter. Of course, in some other embodiments, the first parameter can also be the dimension of the tool 230 in other directions, in which case the dimensional direction of the first parameter intersects with the thickness direction of the tool 230.

[0105] In some embodiments, such as Figure 5 As shown, the drive mechanism 30 is used to drive the positioning member 10 to rotate; or, the drive mechanism 30 is used to drive the imaging device 20 to rotate; or, the drive mechanism 30 is used to drive both the imaging device 20 and the positioning member 10 to rotate.

[0106] In this embodiment, the thickness of the tool 230 is used as the first parameter for illustration:

[0107] When the two-dimensional plane of the image acquired by the imaging device 20 is parallel to the true thickness direction of the tool 230, the thickness measurement value of the tool 230 obtained from the acquired image is the same as the true thickness of the tool 230. Based on this, to make the thickness measurement value of the tool 230 infinitely close to or even the same as the true thickness of the tool 230, in addition to positioning the tool holder 200 on the positioning member 10 and ensuring that the area to be measured of the tool holder 200 on the positioning member 10 falls within the imaging field of view of the imaging device 20, it is also necessary to ensure that the true thickness direction of the tool 230 in the area to be measured is perpendicular to the X direction, that is, to make the thickness measurement direction of the tool 230 infinitely close to the true thickness direction of the tool 230. This allows the thickness measurement value of the tool 230 obtained from the image to be infinitely close to the true thickness of the tool 230. Wherein, the two-dimensional plane of the image is as follows: Figure 7 , Figure 11 , Figure 14 and Figure 15 The thickness measurement value of tool 230 in the YZ plane is as follows: Figure 7 , Figure 11 , Figure 14 and Figure 15 The indicated dimension L1, the actual thickness direction of the tool 230 is as follows Figure 5 The direction Y is shown. When the measured thickness of tool 230 and the actual thickness of tool 230 approach or even become the same, Figure 7 , Figure 11 , Figure 14 and Figure 15 The two-dimensional plane in which it is located is parallel to the actual thickness direction of the tool 230, that is... Figure 7 , Figure 11 , Figure 14 and Figure 15 The indicated direction Y and Figure 5 The direction Y is the same, and the dimension L1 is infinitely close to the actual thickness of the tool 230.

[0108] It should be noted that if the actual thickness direction of the tool 230 is not perpendicular to direction X, that is, not parallel to direction Y, the two-dimensional plane containing the image acquired by the imaging device 20 will also not be parallel to the actual thickness direction of the tool 230. Therefore, the measured thickness of the tool 230 will differ from its actual thickness, meaning the dimension L1 will also differ from the actual thickness. Thus, during the process of acquiring the parameters of the tool 230 from the image, the dimension acquired along a direction not perpendicular to the thickness measurement direction of the tool 230 will also differ from the actual dimension, resulting in inaccurate parameters for the tool 230. This direction not perpendicular to the thickness measurement direction of the tool 230 can be parallel to it or intersect with but not perpendicular to it.

[0109] Therefore, during the adjustment of the relative position between the imaging device 20 and the tool 230 in the area to be measured, if the adjustment is only achieved through coarse adjustment—that is, simply moving the imaging device 20 and / or the tool 230 to bring the tool 230 into the imaging field of view of the imaging device 20—it is impossible to make the true thickness direction of the tool 230 perpendicular to direction X. Consequently, the two-dimensional plane containing the image acquired by the imaging device 20 cannot be parallel to the true thickness direction of the tool 230. This means the thickness measurement direction of the tool 230 cannot be the same as its true thickness direction, and consequently, the dimension acquired from the image along a direction not perpendicular to the thickness measurement direction of the tool 230 cannot be the same as the actual dimension. In other words, the parameters of the tool 230 acquired from the image will differ from the actual parameters. Therefore, the accuracy of the parameters of the tool 230 acquired from the image is low, making it difficult to provide a reliable data basis for adjusting the parameters of the tool 230. Therefore, before acquiring the parameters of the tool 230 from the image, it is necessary to precisely adjust the relative position of the tool 230 and the imaging device 20.

[0110] Taking the rotation of the positioning component 10 driven by the drive mechanism 30 as an example: Figure 5 As shown, the rotation axis of the positioning element 10 is not parallel to (i.e., intersects with) the actual thickness direction of the tool 230. Specifically, the rotation axis of the positioning element 10 is S3 as illustrated in the figure. In some implementations, the rotation axis of the positioning element 10 is perpendicular to the actual thickness direction of the tool 230, for example, parallel to... Figure 5The direction Z shown is the vertical direction when the device is in use; of course, in some other implementations, the rotation axis of the positioning member 10 may also intersect with the direction Z. Based on this, when the positioning member 10 rotates under the drive of the drive mechanism 30, the tool holder 200 can rotate with the positioning member 10, thereby adjusting the thickness measurement value of the tool 230. Since the imaging device 20 can acquire an image of the area to be measured of the tool holder 200, the thickness measurement value of the tool 230 can be obtained through the image, and the thickness measurement value of the tool 230 can be compared with the actual thickness of the tool 230. In this way, by continuously comparing the measured value of the first parameter with the actual value of the first parameter, and continuously driving the positioning member 10 to rotate according to the comparison result to adjust the measured value of the first parameter of the tool 230, the measured value of the first parameter of the tool 230 can be adjusted to be infinitely close to or even equal to the actual value of the first parameter of the tool 230. This can improve the accuracy of the relative position of the tool 230 and the imaging device 20, and thus improve the accuracy of the parameters of the tool 230 obtained through the image. It should be noted that the same explanation applies to the case where the driving mechanism 30 drives the imaging device 20 to rotate, or simultaneously drives the imaging device 20 and the positioning member 10 to rotate. This can also improve the accuracy of the relative position of the tool 230 and the imaging device 20, thereby improving the accuracy of the parameters of the tool 230 obtained through the image. This will not be repeated here.

[0111] Among them, the drive mechanism 30 refers to the mechanism that can output rotational driving force. The specific structure of the drive mechanism 30 will be described in detail in the relevant section below, and will not be repeated here.

[0112] The drive mechanism 30 can be driven by humans or computers.

[0113] When the drive mechanism 30 can simultaneously drive the positioning member 10 and the imaging device 20 to rotate, the rotation axes of the positioning member 10 and the imaging device 20 can be parallel to each other. For example, when the thickness direction of the tool 230 is parallel to the Y direction, the rotation axes of the positioning member 10 and the imaging device 20 can both be parallel to the Z direction. In this case, in order to adjust the thickness measurement value of the tool 230 after the imaging device 20 and the positioning member 10 rotate, the linear velocity of the positioning member 10 and the angular velocity of the imaging device 20 need to be different, that is, the rotation of the positioning member 10 and the rotation of the imaging device 20 need to be asynchronous. Of course, the rotation axes of the positioning member 10 and the imaging device 20 can intersect each other. This setting is beneficial to the driving flexibility of the rotation of the positioning member 10 and the imaging device 20, and can also be adjusted so that the thickness measurement value of the tool 230 is infinitely close to or even the same as the actual thickness of the tool 230.

[0114] The "parameters of tool 230" mentioned above may include, but are not limited to, the fit of tool 230, the end face runout of tool 230, the overlap of tool 230, and the movement offset of tool 230.

[0115] For ease of description of the technical solution of this application, the following is based on... Figures 1 to 4 The tool holder 200 is illustrated in several different configurations, and the parameters of the tool 230 are briefly explained:

[0116] Please refer to the following: Figures 7 to 10 , Figure 7 This illustration shows a schematic image of the region A to be measured on the tool holder 200 of the imaging apparatus 20 according to an embodiment of this application. The tool holder 200 can be... Figure 1 The provided tool holder is 200. Figure 8 It shows Figure 7 Enlarged view at point E, Figure 9 It shows Figure 8 A schematic diagram of the first tool axis 220a in its rotating state. Figure 10 It shows Figure 9 A schematic diagram after the first tool axis 220a has rotated at least one revolution. Figure 7 and Figure 8 In the illustrated structure, the first cutter shaft 220a, the second cutter shaft 220b, the first cutter 230a, and the second cutter 230b are all in a stable state. For example, after the first cutter shaft 220a and / or the second cutter shaft 220b rotate, they are left to stand still for a period of time so that none of the first cutter shaft 220a, the second cutter shaft 220b, the first cutter 230a, or the second cutter 230b will wobble. This can be considered a stable state. Figure 7 and Figure 8 As shown, the first cutting tool 230a and the second cutting tool 230b approach each other parallel to each other along the thickness direction of the second cutting tool 230b, that is, along the Y direction. At this time, the first cutting tool 230a is in a stable state, and the side of the first cutting tool 230a facing the second cutting tool 230b along the Y direction and the side of the second cutting tool 230b facing the first cutting tool 230a along the Y direction have a distance L2 along the Y direction. This distance L2 is the axial gap between the first cutting tool 230a and the second cutting tool 230b, which reflects the fit between the first cutting tool 230a and the second cutting tool 230b. This distance L2 can also be obtained by measuring the distance between the tip of the first cutting tool 230a and the side of the second cutting tool 230b facing the first cutting tool 230a along the Y direction. Figure 7 and Figure 8As shown, there is a distance L3 along the Z direction between the tip of the first cutter 230a facing the second cutter shaft 220b and the end face of the second cutter 230b facing the first cutter shaft 220a. This distance L3 represents the overlap amount of the first cutter 230a and the second cutter 230b along the Z direction. When the first cutter shaft 220a rotates around its own axis of rotation, the first cutter shaft 220a and the first cutter 230a on it will run out, thus affecting the accuracy of the cutting position of the first cutter 230a on the sheet. Figure 9 and Figure 10 As shown, after the first tool shaft 220a rotates at least one revolution around its own axis of rotation, the distance between the tool tip of the first tool shaft 220a and the second tool 230b along the Y direction is obtained continuously before and after the first tool shaft 220a rotates at least one revolution. That is, the distance between the tool tip of the first tool shaft 220a and the second tool 230b is obtained when the first tool 230a is at its respective position. Figure 9 and Figure 10 The distance dimensions are obtained under the given conditions, and these distance dimensions are respectively... Figure 9 The indicated distance dimension L4 and Figure 10 The distance dimension L5 is shown in the diagram. The difference between distance dimension L5 and distance dimension L4 is the end face runout of the first tool 230a. Wherein, in Figure 9 and Figure 10 In this state, the first cutter shaft 220a is not yet in a stable state. At this time, due to the runout of the end face of the first cutter 230a, the stacking amount obtained by the first cutter 230a and the second cutter 230b also changes accordingly. Therefore, it can be obtained through... Figure 7 and Figure 8 The tool 230 in the middle is in a stable state to obtain the above-mentioned stacking amount.

[0117] Please refer to the following: Figure 11 and Figure 13 , Figure 11 The imaging apparatus 20 shown in this application embodiment is based on Figure 2 A schematic diagram of the image of the test area B of the tool holder 200 acquired by the provided tool holder 200. Figure 12 It shows Figure 11 A schematic diagram of the first tool axis 220a in its rotating state. Figure 13 It shows Figure 12 A schematic diagram after the first cutter shaft 220a has rotated at least one revolution. When the first cutter shaft 220a rotates around its own axis of rotation, the tip of the first cutter shaft 220a and the first cutter 230a on it will jump. First marks M can be set on the first cutter shaft 220a at intervals along the Y direction from the first cutter 230a. After the first cutter shaft 220a has rotated at least one revolution around its own axis of rotation, the distance along the Y direction between the tip of the first cutter shaft 220a and the first marks M is continuously measured before and after each revolution. That is, the distance is measured when the first cutter 230a is at... Figure 12 and Figure 13 The distance dimensions are obtained under the given conditions, and these distance dimensions are respectively... Figure 12 The indicated distance dimension L6 and Figure 13 The distance dimension L7 is shown in the diagram. The difference between distance dimension L7 and distance dimension L6 is the end face runout of the first tool 230a.

[0118] Please see Figure 14 , Figure 14 The imaging apparatus 20 shown in this application embodiment is based on Figure 3 A schematic diagram of the image of the test area C of the tool holder 200 acquired by the provided tool holder 200. Wherein, Figure 14 In the schematic diagram shown, the first cutter 230a and the second cutter 230b are in a state after moving towards each other along the Z direction, that is, the first cutter 230a and the second cutter 230b are in a state of cutting the sheet. The first cutter 230a and the second cutter 230b approach each other parallel to each other along the thickness direction of the second cutter 230b, that is, they approach each other along the Y direction. There is a gap dimension L8 along the Y direction between the side of the first cutter 230a facing the second cutter 230b and the side of the second cutter 230b facing the first cutter 230a along the Y direction. This gap dimension L8 reflects the degree of fit between the first cutter 230a and the second cutter 230b. There is a distance dimension L9 along the Z direction between the tip of the first cutter 230a facing the second cutter 230b and the end face of the second cutter 230b facing the first cutter 230a along the Z direction. This distance dimension L9 is the overlap amount of the first cutter 230a and the second cutter 230b along the Z direction.

[0119] Please refer to the following: Figure 15 and Figure 16 , Figure 15 The imaging apparatus 20 shown in this application embodiment is based on Figure 4 A schematic diagram of the image of the test area D of the tool holder 200 acquired by the provided tool holder 200. Wherein, Figure 15 In the schematic diagram shown, the first cutter 230a is in the state after moving along the Z direction, that is, the first cutter 230a is in the state of cutting the sheet. Figure 16 for Figure 15 A schematic diagram of the first cutter 230a in its initial state. The initial state refers to the state of the first cutter 230a before it cuts the sheet. Specifically, before cutting the sheet, the first cutter 230a is in... Figure 16 This is an illustration of the state. When the sheet is fed to one side of the first cutter 230a along direction Z, the first cutter 230a moves towards the sheet along direction Z to cut the sheet along direction Z. At this time, the first cutter 230a is in... Figure 15The diagram illustrates the state. It should be noted that when the first cutter 230a moves linearly to cut the sheet, its direction of movement may deviate from the Z-direction and become non-parallel, thus reducing the accuracy of the cutting position of the first cutter 230a on the sheet. Therefore, second marks N can be set on the mounting bracket 210 at intervals along the Y-direction from the first cutter 230a. The distance along the Y-direction between the tip of the first cutter 230a and the second mark N can be obtained before and after the linear movement of the first cutter 230a. That is, the distance between the tip of the first cutter 230a and the second mark N can be obtained when the first cutter 230a is in a linear position... Figure 15 and Figure 16 The distance dimensions are obtained under the given conditions, and these distance dimensions are respectively... Figure 15 The distance dimension L10 and Figure 16 The distance dimension L11, the difference between distance dimension L10 and distance dimension L11 is the movement offset of the first tool 230a.

[0120] It should be noted here that, Figure 14 In the illustrated embodiment, the second mark N described above can also be provided on the mounting bracket 210 to obtain the movement offset of the first tool 230a and / or the second tool 230b. Wherein, for Figure 14 The method for measuring the movement offset in the illustrated embodiment can also be used with... Figure 15 and Figure 16 The method for measuring the movement offset in the illustrated embodiment is explained similarly and will not be repeated here.

[0121] Based on the parameters described above, the first parameter can be set as the thickness of the tool 230. The measured thickness of the tool 230 is then the measured value of the first parameter, and the actual thickness of the tool 230 is the actual value of the first parameter. When the two-dimensional plane containing the image acquired by the imaging device 20 is not parallel to the actual thickness direction of the tool 230, the measured thickness of the tool 230 differs from the actual thickness. Consequently, the parameters of the tool 230 acquired from the image captured by the imaging device 20, such as the fit of the tool 230, the end face runout of the tool 230, and the movement offset of the tool 230, are all different from the actual dimensions. In other words, the parameters of the tool 230 acquired from the image differ from the actual parameters, resulting in lower accuracy of the tool 230's parameters. Therefore, by driving the imaging device 20 and / or the positioning element 10 to rotate through the driving mechanism 30, the thickness measurement value of the tool 230 can be adjusted. This allows for precise adjustment of the relative position between the imaging device 20 and the tool 230, so that the two-dimensional plane of the image acquired by the imaging device 20 is parallel to the actual thickness direction of the tool 230. Consequently, the thickness measurement value of the tool 230 approaches or even matches the actual thickness of the tool 230, and the parameters of the tool 230 approach or even match the actual parameters, thus improving the precision and accuracy of the tool 230's parameters.

[0122] In other embodiments, after the imaging device 20 acquires an image of the area to be measured of the tool holder 200, it can measure the size of the tool 230 in the image using a preset reference. This requires that the tool 230 be moved to a preset position within the imaging field of view of the imaging device 20 during the adjustment of the tool 230 and the imaging device 20. For example, a coordinate axis can be set on the imaging device 20, and a scale can be set on the coordinate axis. In the acquired image, the O point of the coordinate axis must be aligned with the tip of the tool 230, so that the first parameter of the tool 230 can be directly obtained through the scale. Therefore, if the adjustment is only achieved through coarse adjustment during the adjustment of the relative position of the imaging device 20 and the tool 230 in the area to be measured—that is, simply moving the imaging device 20 and / or the tool 230 to bring the tool 230 into the imaging field of view of the imaging device 20—the O point of the coordinate axis cannot be precisely aligned with the tip of the tool 230. Consequently, the measured value of the first parameter obtained through the coordinate axis will differ from the true value of the first parameter, and correspondingly, the parameter of the tool 230 obtained through the coordinate axis will also be different. Therefore, the parameters of the tool 230 obtained through images have low accuracy, making it difficult to provide a reliable data basis for adjusting the parameters of the tool 230. Thus, before obtaining the parameters of the tool 230 through images, the relative positions of the tool 230 and the imaging device 20 need to be precisely adjusted.

[0123] In this embodiment, the driving mechanism 30 can be used to drive the imaging device 20 to move linearly, or the driving mechanism 30 can be used to drive the positioning member 10 to move linearly, or the driving mechanism 30 can drive both the imaging device 20 and the positioning member 10 to move linearly. This allows for precise relative movement between the tool 230 and the imaging device 20, enabling the tool 230 to enter a preset position within the imaging field of view of the imaging device 20. In other words, the relative position between the tool 230 and the imaging device 20 can be precisely adjusted, resulting in a high-precision relative position between the imaging device 20 and the tool 230, and thus, higher accuracy in acquiring the parameters of the tool 230 from the image.

[0124] When the driving mechanism 30 can simultaneously drive the imaging device 20 and the positioning member 10 to move linearly, the moving direction of the imaging device 20 and the moving direction of the positioning member 10 can be parallel or intersecting.

[0125] In some embodiments, after the imaging device 20 acquires an image of the area to be measured on the tool holder 200, the operator can manually obtain the dimensions in the image and calculate the parameters of the tool 230. In other embodiments, the imaging device 20 can be connected to an external computer. After the imaging device 20 acquires an image of the area to be measured on the tool holder 200, the computer acquires the image and obtains the dimensions in the image. Based on this, the operator can manually calculate the parameters of the tool 230 using the dimensions obtained by the computer. In still other embodiments, the imaging device 20 can be connected to an external computer. After the imaging device 20 acquires an image of the area to be measured on the tool holder 200, the computer acquires the image and obtains the dimensions in the image, and processes and calculates these dimensions to directly calculate the parameters of the tool 230. Here, the computer refers to an electronic device capable of processing and calculating images.

[0126] By adopting the above technical solution, the parameter measuring device 100 provided in this application embodiment, through the driving mechanism 30 driving the imaging device 20 to move and / or driving the tool 230 on the tool holder 200 to move, can adjust the measured value of the first parameter of the tool 230. This allows the measured value of the first parameter of the tool 230 to be infinitely close to the true value of the first parameter of the tool 230, thereby reducing the offset of the tool 230 relative to the imaging device 20, that is, it can achieve precise adjustment of the relative position between the imaging device 20 and the tool 230. Based on this, the image acquired by the imaging device 20 can realistically and accurately display the parameters of the tool 230, improve the accuracy of the parameter measurement of the tool 230, and provide a reliable data basis for the parameter adjustment of the tool 230.

[0127] The following text mainly uses the thickness of the tool 230 as the first parameter for explanation. Therefore, the measured value of the first parameter is the measured value of the thickness of the tool 230, and the actual value of the first parameter is the actual thickness of the tool 230.

[0128] In some embodiments, please refer to the following: Figure 5 and Figure 17 The parameter measuring device 100 also includes a control system 40, which is electrically connected to the drive mechanism 30 and the imaging device 20. The control system 40 controls the drive mechanism 30 to drive the imaging device 20; or, the control system 40 controls the drive mechanism 30 to simultaneously drive the positioning member 10 and the tool holder 200; or, the control system 40 controls the drive mechanism 30 to drive the imaging device 20 and the positioning member 10. In all these cases, the control system 40 controls the drive mechanism 30 to drive the tool 230, thereby ensuring that the measured value of the first parameter of the tool 230 is within a preset threshold range.

[0129] The preset threshold range refers to the range of the actual thickness of the tool 230. When the thickness measurement of the tool 230 is within the preset threshold range, it means that the thickness measurement of the tool 230 is infinitely close to the actual thickness of the tool 230. At this time, image processing can be performed based on the image to obtain the parameters of the tool 230. The preset threshold range can be set according to the required accuracy.

[0130] The control system 40 refers to a system capable of image processing, data processing, issuing control commands, and receiving data; for example, the control system 40 may include a computer. Specifically, the control system 40 can send control commands to the imaging device 20 to control the imaging device 20 to acquire an image of the area to be measured on the tool holder 200. The control system 40 can also send control commands to the drive mechanism 30 to control the drive mechanism 30 to drive or stop driving. The control system 40 can also receive image data acquired by the imaging device 20. The control system 40 performs image processing and data processing on the acquired images, and can obtain the thickness measurement value of the tool 230 from the images, compare the thickness measurement value of the tool 230 with a preset threshold range, and obtain the parameters of the tool 230.

[0131] When the parameter measuring device 100 is working, the tool holder 200 is first positioned on the positioning member 10, and the area to be measured of the tool holder 200 is placed within the imaging field of view of the imaging device 20. The control system 40 sends a control command to the imaging device 20 to enable the imaging device 20 to acquire an image of the area to be measured of the tool holder 200 in real time. The control system 40 acquires the image acquired by the imaging device 20 in real time and performs image processing on the acquired image to acquire the thickness measurement value of the tool 230 in real time. The control system 40 compares the acquired thickness measurement value of the tool 230 in real time with the actual thickness of the tool 230, that is, compares the thickness measurement value of the tool 230 with a preset threshold range, and controls the drive mechanism 30 based on the comparison result. When the thickness measurement value of the tool 230 does not fall within the preset threshold range, it indicates that there is a large deviation between the thickness measurement value of the tool 230 and the actual thickness of the tool 230. The control system 40 sends a control command to the drive mechanism 30 to drive the imaging device 20 and / or the positioning member 10 to move, thereby adjusting the thickness measurement value of the tool 230. Meanwhile, the control system 40 continues to control the imaging device 20 to acquire images in real time and to acquire the thickness measurement value of the tool 230 in real time, and compares the real-time acquired thickness measurement value of the tool 230 with a preset threshold range. When the thickness measurement value of the tool 230 falls within the preset threshold range, it indicates that the thickness measurement value of the tool 230 is infinitely close to the true thickness of the tool 230. The control system 40 sends a control command to the drive mechanism 30 to stop driving the imaging device 20 and / or the positioning member 10. The control system 40 acquires the image acquired by the imaging device 20 at this time and performs image processing on the image to obtain the parameters of the tool 230.

[0132] The parameter measuring device 100 involved in this application embodiment, on the one hand, compared with manual data acquisition and processing, uses the control system 40 to perform image processing to obtain the thickness measurement value of the tool 230, and controls the drive mechanism 30 to drive the operation, which can improve the accuracy of the thickness measurement value of the tool 230 and reduce the gap between the thickness measurement value of the tool 230 and the actual thickness of the tool 230, thus improving the parameter accuracy of the tool 230. On the other hand, compared with manual adjustment of the relative position between the tool 230 and the imaging device 20, the control system 40 acquires the thickness measurement value of the tool 230 in real time, compares the thickness measurement value of the tool 230 with a preset threshold range in real time, and controls the drive mechanism 30 to drive the operation in real time based on the comparison result to adjust the thickness measurement value of the tool 230. That is, the control system 40 can realize real-time adjustment of the relative position between the tool 230 and the imaging device 20, thus improving the adjustment efficiency and accuracy of the relative position between the tool 230 and the imaging device 20, and further improving the focusing efficiency of the imaging device 20.

[0133] In some embodiments, please refer to the following: Figures 7 to 17 The parameter measuring device 100 is used to measure the parameters of the tool 230. The obtained parameters of the tool 230 include at least one of the tool 230 fitting degree, tool overlap amount and end face runout amount.

[0134] When the object measured by parameter measuring device 100 is Figure 1 When the tool holder 200 is shown in the diagram, the control system 40 can obtain images (such as those from the imaging device 20) through the imaging device 20. Figures 7 to 10 (As shown) Obtain the fit, overlap, and end face runout of the tool 230.

[0135] When the object measured by parameter measuring device 100 is Figure 2 When the tool holder 200 is shown in the diagram, the control system 40 can obtain images (such as those from the imaging device 20) through the imaging device 20. Figures 11 to 13 (As shown) Obtain the runout of the tool 230 and its end face.

[0136] When the object measured by parameter measuring device 100 is Figure 3 When the tool holder 200 is shown in the diagram, the control system 40 can obtain images (such as those from the imaging device 20) through the imaging device 20. Figure 14 (As shown) Obtain the fit, overlap, and movement offset of the tool 230.

[0137] When the object measured by parameter measuring device 100 is Figure 4 When the tool holder 200 is shown in the diagram, the control system 40 can obtain images (such as those from the imaging device 20) through the imaging device 20. Figure 15 and Figure 16 (As shown) Obtain the movement offset of tool 230.

[0138] By adopting the above technical solution, the control system 40 can obtain different parameters of the tool 230 based on different types of tool holders 200.

[0139] In some embodiments, please refer to the following: Figure 5 and Figure 6 The imaging device 20 has a lens 21, and the imaging device 20 acquires an image of the area to be measured through the lens 21.

[0140] It is understood that the imaging device 20 is a camera, with the lens 21 mounted on the camera body 22. The light-incident side S1 of the imaging device 20 is located on the side of the lens 21 facing away from the camera body 22. For example, the lens 21 is located on the side of the camera along direction X, and the light-incident side S1 of the imaging device 20 is located on the side of the lens 21 facing away from the camera body 22 along direction X. The camera body 22 can acquire the image captured by the lens 21 and convert the image into electronic data, such as a picture.

[0141] Based on the above structure, the control system 40 can be connected to the camera body 22 to achieve an electrical connection between the control system 40 and the camera body 22. The control system 40 can then send control commands to the camera body 22 and acquire the electronic data obtained by the camera body 22. Alternatively, the electronic data acquired by the camera body 22 can be imported into an external computer, and the parameters of the cutting tool 230 can be obtained through manual or computer processing.

[0142] By adopting the above technical solution and selecting the camera as the imaging device 20, the problems of small depth of field caused by the single lens 21 of the microscope, and the local blurring and unclear image obtained can be improved. This can effectively improve the accuracy of the measurement value of the first parameter of the tool 230, and at the same time reduce the gap between the measured value of the first parameter of the tool 230 and the true value of the first parameter of the tool 230, so as to improve the parameter accuracy of the tool 230.

[0143] In other embodiments, the imaging device 20 includes a microscope.

[0144] When a microscope is selected as the imaging device 20, the parameters of the tool 230 can be manually obtained by observing the area to be measured on the tool holder 200 through the eyepiece when the parameter measuring device 100 is working. Alternatively, the control system 40 can be connected to the microscope to obtain the parameters of the tool 230.

[0145] By adopting the above technical solution, the imaging device 20 can be configured as a microscope or a camera.

[0146] In some embodiments, please refer to the following: Figure 5 and Figure 6 The imaging device 20 is a camera including a lens 21, and the lens 21 of the camera is a telecentric lens 21.

[0147] By adopting the above technical solution, the lens 21 of the imaging device 20 is set as a telecentric lens. The telecentric lens has a high resolution and can effectively improve the problems of small depth of field, local image blurring, and unclear image of a single lens. Therefore, it can clearly and accurately obtain the image of the area to be measured of the tool holder 200, thereby improving the parameter accuracy of the tool 230.

[0148] In some embodiments, please refer to the following: Figure 5 and Figure 6 The parameter measuring device 100 also includes a supplementary light 50, which is distributed at intervals with the imaging device 20, and the supplementary light 50 is used to emit light toward the area to be measured.

[0149] A fill light 50 refers to a light fixture capable of emitting light. The fill light 50 can emit white light, or it can emit colored light, depending on the specific application requirements.

[0150] The light-emitting side S2 of the supplementary light 50 faces the area to be tested of the tool holder 200. Based on this, when the supplementary light 50 emits light from the light-emitting side S2, it can emit light to the area to be tested of the tool holder 200.

[0151] By adopting the above technical solution, when the parameter measuring device 100 is working, the supplementary light 50 can emit light towards the area to be measured on the tool holder 200 to achieve a supplementary lighting effect. In this way, the image of the area to be measured acquired by the imaging device 20 can be clearer, thereby improving the parameter accuracy of the tool 230.

[0152] In some embodiments, such as Figure 6 As shown, the supplementary light 50 and the imaging device 20 are spaced apart along direction X. Before the tool holder 200 is positioned on the positioning member 10, the light-emitting side S2 of the supplementary light 50 faces the imaging device 20, and the light-incident side S1 of the imaging device 20 faces the supplementary light 50. By adopting the above technical solution, when the tool holder 200 is positioned on the positioning member 10, and the area to be tested of the tool holder 200 falls within the imaging field of view of the imaging device 20, the area to be tested of the tool holder 200 is located between the supplementary light 50 and the imaging device 20. With this arrangement, the supplementary light 50 can provide backlighting to the area to be tested of the tool holder 200, which makes the area to be tested have a clearer outline, thereby improving the clarity of the image of the area to be tested acquired by the imaging device 20 and helping to improve the parameters of the tool 230.

[0153] In some embodiments, please refer to the following: Figure 5 , Figure 6 and Figure 18 The drive mechanism 30 includes a driver 31 and a transmission component 32. The transmission component 32 is connected to the output end of the driver 31 and is also connected to the imaging device 20 or the positioning member 10.

[0154] When the drive mechanism 30 is used to drive the imaging device 20 and / or the positioning member 10 to rotate, in some implementations, the driver 31 can be, but is not limited to, a device capable of outputting rotational driving force such as a motor, and the transmission component 32 can be, but is not limited to, a gear set 321. The gear set 321 includes at least two gears 321, and the at least two gears 321 mesh sequentially. Taking a gear set 321 including two gears 321 as an example: Figure 18 As shown, one gear 321 is connected to the output end of the driver 31, and the other gear 321 is connected to the imaging device 20 or the positioning member 10. Based on this, when the driver 31 outputs a rotational driving force, the multiple gears 321 of the gear set 321 sequentially transmit the rotational driving force of the driver 31 to the imaging device 20 or the positioning member 10, thereby realizing the rotation of the imaging device 20 or the positioning member 10.

[0155] In other implementations, the driver 31 can be, but is not limited to, a linear motor, electric cylinder, pneumatic cylinder, or other device capable of outputting linear driving force. The transmission assembly 32 can be, but is not limited to, a screw mechanism. The screw mechanism includes a screw and a nut screwed to the screw. Taking the transmission assembly 32 as a screw mechanism as an example: the nut is connected to the output end of the driver 31, and the screw is connected to the imaging device 20 or the positioning member 10. Based on this, when the driver 31 outputs linear driving force, the nut moves linearly relative to the screw under the drive of the driver 31, causing the screw to rotate relative to the nut, thereby driving the imaging device 20 or the positioning member 10 to rotate. In other words, the transmission assembly 32 converts the linear driving force of the driver 31 into rotational driving force and transmits it to the imaging device 20 or the positioning member 10, thereby realizing the rotation of the imaging device 20 or the positioning member 10.

[0156] It should be noted that in some embodiments, when the drive mechanism 30 drives the positioning member 10 to rotate, the transmission component 32 is connected to the positioning member 10. In other embodiments, when the drive mechanism 30 drives the imaging device 20 to rotate, the transmission component 32 is connected to the imaging device 20. In still other embodiments, when the drive mechanism 30 drives both the positioning member 10 and the imaging device 20 to rotate, both the number of drivers 31 and the number of transmission components 32 can be set to two, with the two transmission components 32 correspondingly connected to the output ends of the two drivers 31. Furthermore, one transmission component 32 is connected to the positioning member 10 to transmit the driving force of the corresponding driver 31 to the positioning member 10; the other transmission component 32 is connected to the imaging device 20 to transmit the driving force of the corresponding driver 31 to the imaging device 20. The two drivers 31 can be of the same or different forms; for example, one driver 31 may output linear driving force, and the other driver 31 may output rotational driving force. Correspondingly, the two transmission components 32 can also be of the same or different forms.

[0157] By adopting the above technical solution, the drive mechanism 30 is composed of a driver 31 and a transmission component 32, so that the structure of the drive mechanism 30 can be diverse and flexibly changed. Furthermore, the arrangement of the transmission component 32 helps to ensure high smoothness of the rotation of the positioning member 10 or the imaging device 20.

[0158] Optionally, such as Figure 18 As shown, when the transmission assembly 32 is a gear 321 group, the drive mechanism 30 may further include a connecting shaft 33, one end of which is connected to the gear 321, and the other end is connected to the positioning member 10 or the imaging device 20. In this way, the connecting shaft 33 realizes an indirect connection between the gear 321 and the positioning member 10 or an indirect connection between the gear 321 and the imaging device 20, which facilitates the connection operation.

[0159] In other embodiments, the drive mechanism 30 may also be configured as, but is not limited to, a driver 31 that can directly output the driving force of the rotator, such as a motor, without providing a transmission component 32.

[0160] Based on this, when the drive mechanism 30 is used to drive the positioning member 10 and the imaging device 20 to rotate, the rotation of the imaging device 20 and the rotation of the positioning member 10 can both be achieved through the cooperation of the driver 31 and the transmission component 32, or they can both be achieved by the driver 31 alone; even, the rotation of the imaging device 20 can be achieved through the cooperation of the driver 31 and the transmission component 32, while the rotation of the positioning member 10 can be achieved by the driver 31 alone; or, the rotation of the positioning member 10 can be achieved by the driver 31 alone, while the rotation of the imaging device 20 can be achieved through the cooperation of the driver 31 and the transmission component 32.

[0161] When the drive mechanism 30 is used to drive the imaging device 20 and / or the positioning member 10 to move linearly, the driver 31 can be a motor, and the transmission component 32 can be a screw mechanism. The screw of the screw mechanism is connected to the output end of the motor, and the nut of the screw mechanism is connected to the imaging device 20 and / or the positioning member 10 to drive the imaging device 20 and / or the positioning member 10 to translate. Of course, the transmission component 32 and the driver 31 can also be in other forms, which are not limited here.

[0162] In some embodiments, please refer to the following: Figures 19 to 21 The positioning member 10 is provided with a positioning groove 101, and the positioning groove 101 is provided with an opening 102. The opening 102 is used for the tool holder 200 to enter and exit the positioning groove 101 along the first direction. The positioning groove 101 is provided with a first positioning part 11 on the other side of the opening 102 along the first direction. The first positioning part 11 is used to limit the tool holder 200 along the first direction.

[0163] like Figure 19 and Figure 21 As shown, the positioning groove 101 is a recess, and one end of the positioning groove 101 along the Z direction has an opening. In other words, the positioning member 10 is recessed on one side along the Z direction to form the positioning groove 101. Based on this, when the tool holder 200 is positioned in the positioning groove 101, at least a portion of the tool holder 200 along the Z direction passes through the opening.

[0164] The opening 102 is connected to the aforementioned open opening. The first positioning part 11 can be the inner wall of the positioning groove 101 along the first direction, or it can be a structure provided on the inner wall of the positioning groove 101 along the first direction.

[0165] When the relative positions between the cutter 230 and the imaging device 20 are adjusted, such as Figures 19 to 21 As shown in the figure, the first direction is Y, which is indicated in the figure.

[0166] By adopting the above technical solution, the operator can push the tool holder 200 from the opening 102 of the positioning groove 101 into the positioning groove 101 along the first direction until the tool holder 200 abuts against the first positioning part 11 along the first direction, making the operation of positioning the tool holder 200 in the positioning member 10 very simple and convenient. Correspondingly, the tool holder 200 can be disassembled simply by pulling it out from the opening 102 of the positioning groove 101 along the first direction, which is very simple and convenient.

[0167] In some embodiments, please refer to the following: Figures 19 to 21 The positioning groove 101 has a second positioning part 12 on each side along the second direction, and the second positioning part 12 is used to limit the tool holder 200 along the second direction. The first direction and the second direction intersect.

[0168] The second positioning part 12 can be the inner wall of the positioning groove 101 along the second direction, or it can be a structure provided on the inner wall of the positioning groove 101 along the second direction. The first positioning part 11 and the second positioning part 12 can be directly connected or distributed at intervals.

[0169] The first positioning part 11 is provided at one end of the positioning member 10 along the first direction, and the positioning member 10 is provided with second positioning parts 12 on both sides along the second direction. The first positioning part 11 and the second positioning parts 12 on both sides of the positioning member 10 together define the positioning groove 101, and the opening 102 of the positioning groove 101 is provided at the other end of the positioning member 10 along the first direction.

[0170] The first and second directions intersect, meaning they are not parallel. However, the first and second directions can be perpendicular to each other, or they can be non-perpendicular. For example, as... Figure 19 and Figure 21 As shown, when the first direction and the second direction are perpendicular to each other, and the relative positions between the cutter 230 and the imaging device 20 are adjusted, the first direction can be parallel to the direction Y, and the second direction can be parallel to the direction X.

[0171] When the tool holder 200 enters the positioning groove 101, the tool holder 200 is limited in the first direction by the first positioning part 11. Furthermore, at this time, the tool holder 200 is also limited in the second direction by the second positioning parts 12 on both sides of the positioning member 10. Therefore, the tool holder 200 is limited in the first and second directions on the positioning member 10, that is, limited in two intersecting directions. Thus, when the tool holder 200 is positioned in the positioning groove 101, and the area to be measured by the tool holder 200 is within the imaging field of view of the imaging device 20, the limiting effect of the first positioning part 11 and the second positioning part 12 on the tool holder 200 can maintain the stability of the relative position between the tool holder 200 and the imaging device 20.

[0172] By adopting the above technical solution, the relative positional stability between the tool holder 200 and the imaging device 20 can be achieved.

[0173] It should be noted here that, as Figures 19 to 21 As shown, when the drive mechanism 30 is used to output rotational driving force, the first direction is perpendicular to the rotation axis of the imaging device 20 or the rotation axis of the positioning member 10, and the second direction is perpendicular to the rotation axis of the imaging device 20 or the rotation axis of the positioning member 10. Based on this, the rotation axis of the positioning member 10 or the rotation axis of the imaging device 20 can be set to be parallel to the Z direction. When the tool holder 200 is positioned in the positioning groove 101, the tool holder 200 also abuts against the bottom of the positioning groove 101 along the Z direction. This allows the tool holder 200 to be confined outside the positioning groove 101 along the first and second directions, and also confined within the positioning groove 101 along the Z direction, which is perpendicular to the first and second directions. That is, the tool holder 200 is confined within the positioning groove 101 along three intersecting directions, which helps to maintain the stability of the relative position between the tool holder 200 and the imaging device 20. In addition, when the drive mechanism 30 is used to drive the positioning member 10, the tool holder 200 can also rotate with the positioning member 10.

[0174] In some embodiments, please refer to the following: Figures 19 to 23 The parameter measuring device 100 also includes a first moving mechanism 60 and a second moving mechanism 70. The first moving mechanism 60 is used to drive the positioning member 10 and the tool holder 200 to reciprocate along a third direction, and the second moving mechanism 70 is used to drive the first moving mechanism 60, the positioning member 10, and the tool holder 200 to reciprocate along a fourth direction. The third and fourth directions intersect.

[0175] The first moving mechanism 60 can be a drive mechanism such as a combination device formed by a linear motor, electric cylinder, pneumatic cylinder, rotary motor, and screw mechanism, used to drive the positioning member 10 to move linearly in a third direction. The second moving mechanism 70 can be a drive mechanism such as a combination device formed by a linear motor, electric cylinder, pneumatic cylinder, rotary motor, and screw mechanism, used to drive the first moving mechanism 60 and the positioning member 10 to move linearly in a fourth direction together.

[0176] For example, in some implementations, such as Figure 19 , Figure 20 , Figure 22 and Figure 23As shown, the first moving mechanism 60 includes a moving member 61, a first screw 62, and a first threaded connector 63. The first screw 62 is rotatably connected to the moving member 61 and extends along a third direction. The first threaded connector 63 can be a nut or other structure with internal threads. The first threaded connector 63 is threadedly connected to the first screw 62 and is connected to the positioning member 10. When the first screw 62 rotates, the first threaded connector 63 moves linearly along a third direction under the transmission action of the first screw 62, thereby driving the positioning member 10 to move linearly.

[0177] In addition, to improve the stability of the positioning member 10 moving along a third direction, the first moving mechanism 60 also includes a first guide rail 64 and a first sliding member 65. The first guide rail 64 extends along a third direction and is located on the moving member 61, and is also spaced apart from the first screw 62. The first sliding member 65 is connected to the positioning member 10. The first guide rail 64 may have a groove extending along a third direction, and at least a portion of the first sliding member 65 is embedded in the groove, allowing it to slide along the groove when the positioning member 10 moves linearly along a third direction; alternatively, the first sliding member 65 may also have a groove that extends through it along a third direction, with at least a portion of the first guide rail 64 embedded in the groove, allowing it to slide along the groove when the positioning member 10 moves linearly along a third direction.

[0178] For example, in some implementations, such as Figure 22 and Figure 23 As shown, the structure of the second moving mechanism 70 is similar to that of the first moving mechanism 60, specifically including a rotating member 71, a second screw 72, and a second threaded connector 73. The second screw 72 is rotatably mounted on the rotating member 71 and extends along the fourth direction. The structure of the second threaded connector 73 is similar to that of the first threaded connector 63. The second threaded connector 73 and the second screw 72 are threadedly connected, and the second threaded connector 73 is connected to the moving member 61. When the second screw 72 rotates, the second threaded connector 73 moves linearly along the fourth direction under the transmission action of the second screw 72, thereby driving the moving member 61 to move linearly along the fourth direction, thus simultaneously realizing the linear movement of the first moving mechanism 60 and the positioning member 10 along the fourth direction.

[0179] When the drive mechanism 30 is used to drive the positioning member 10 to move, the rotating member 71 is connected to the output end of the drive mechanism 30 to move under the drive of the drive mechanism 30, thereby driving the first moving mechanism 60, the second moving mechanism 70 and the positioning member 10 to move together.

[0180] Furthermore, to improve the stability of the positioning member 10 moving along the fourth direction, the second moving mechanism 70 also includes a second guide rail 74 and a second sliding member 75. The second guide rail 74 is disposed on the rotating member 71, and the second sliding member 75 is disposed on the moving member 61. When the second screw connector 73 drives the moving member 61 to move along the fourth direction, the second sliding member 75 slides along the second guide rail 74 along the fourth direction. The sliding method of the second sliding member 75 and the second guide rail 74 is similar to that of the first sliding member 65 and the first guide rail 64, which can be referred to for details and will not be repeated here.

[0181] Where the third and fourth directions intersect, it means that the third and fourth directions are not parallel. The third and fourth directions can be perpendicular to each other, or they can be non-perpendicular. For example, when the third and fourth directions are perpendicular, the third direction can be parallel to direction Y, and the fourth direction can be parallel to direction X. That is, the third direction is parallel to the first direction, and the fourth direction is parallel to the second direction.

[0182] Based on the above structure, when the drive mechanism 30 is used to drive the positioning member 10 to move, the first moving mechanism 60 and the second moving mechanism 70 realize the indirect connection between the drive mechanism 30 and the positioning member 10.

[0183] By adopting the above technical solution, after the tool holder 200 is positioned on the positioning member 10, the positioning member 10 can be moved in two different directions by the first moving mechanism 60 and the second moving mechanism 70 respectively. This allows the tool holder 200 to be moved so that the area to be measured by the tool holder 200 falls into the imaging field of view of the imaging device 20. In other words, it is possible to achieve a coarse adjustment effect on the relative position between the tool holder 200 and the imaging device 20, which makes it easier for the area to be measured by the tool holder 200 to enter the imaging field of view of the imaging device 20.

[0184] It should be noted here that, as Figures 19 to 23 As shown, when the drive mechanism 30 outputs rotational driving force, the third direction is perpendicular to the rotation axis of the imaging device 20 or the rotation axis of the positioning member 10, and the fourth direction is perpendicular to the rotation axis of the imaging device 20 or the rotation axis of the positioning member 10. Based on this, when the first moving mechanism 60 and the second moving mechanism 70 move the positioning member 10 to a position where the area to be measured on the tool holder 200 is within the imaging field of view of the imaging device 20, the drive mechanism 30 drives the imaging device 20 and / or the positioning member 10 to rotate, without causing a large change in the relative position between the tool holder 200 and the imaging device 20. That is, it achieves a fine adjustment of the relative position between the tool holder 200 and the imaging device 20, so that the area to be measured on the tool holder 200 remains within the imaging field of view of the imaging device 20.

[0185] Furthermore, based on the relationship between the third and fourth directions and the rotation axis of the imaging device 20 or the rotation axis of the positioning member 10, the driving mechanism 30 can drive the imaging device 20 and / or the positioning member 10 to rotate in order to adjust the measured value of the first parameter of the tool 230. This achieves a fine adjustment of the relative positional relationship between the tool holder 200 and the imaging device 20, without causing the area to be measured of the tool holder 200 to move out of the imaging field of view of the imaging device 20. In this way, the image of the area to be measured can be directly obtained to obtain the parameters of the tool 230.

[0186] Optionally, such as Figure 5 As shown, the parameter measuring device 100 also includes a frame 80, and the imaging device 20, the supplementary light 50, and the drive mechanism 30 are all mounted on the frame 80.

[0187] Please refer to the following: Figure 5 and Figure 24 The second aspect of this application provides a parameter measurement method applied to a parameter measurement device 100. The parameter measurement device 100 involved in this embodiment is the same as the parameter measurement devices 100 involved in the above embodiments, and can be referred to for details, which will not be repeated here.

[0188] In this embodiment of the application, the parameter measurement method includes the following steps:

[0189] S10, Imaging device 20 acquires an image of the area to be measured in tool holder 200, and the image is used to acquire the measured value of the first parameter of tool 230 in the area to be measured;

[0190] In this step, the imaging device 20 can be started manually or by computer to acquire an image of the area to be measured of the tool 230.

[0191] The images acquired by the imaging device 20 are as follows: Figure 7 , Figure 11 , Figure 14 and Figure 15 A schematic diagram.

[0192] S20, the driving mechanism 30 drives the imaging device 20 to move and / or drives the positioning member 10 to move, so as to adjust the relative position of the cutter 230 and the imaging device 20;

[0193] In this step, the drive mechanism 30 can be operated manually or by computer to output driving force to the imaging device 20 and / or the positioning element 10.

[0194] This step primarily aims to adjust the relative position between the cutter 230 and the imaging device 20, so that the measured value of the first parameter approaches its true value. Specifically, the measured value of the first parameter of the cutter 230 needs to be obtained manually or by computer, and compared with its true value, until the imaging device 20 and / or the positioning member 10 move to a point where the measured value of the first parameter of the cutter 230 is infinitely close to or even equal to its true value. At this point, the two-dimensional plane containing the image acquired by the imaging device 20 is approximately parallel to the dimension direction of the true value of the first parameter of the cutter 230. It can also be understood that in this embodiment, when the driving mechanism 30 drives the imaging device 20 and / or the positioning member 10 to rotate, the imaging device 20 and / or the positioning member 10 must rotate until the dimension direction of the true value of the first parameter of the cutter 230 is perpendicular to direction X.

[0195] S30: Obtain the parameters of tool 230 through image.

[0196] In this step, the parameters of the tool 230 can be obtained manually or by computer.

[0197] By adopting the above technical solution, the measured value of the first parameter of the tool 230 is adjusted by driving the imaging device 20 and / or driving the tool 230 on the tool holder 200 to move through the driving mechanism 30. This allows the measured value of the first parameter of the tool 230 to be infinitely close to its true value, thereby reducing the offset of the tool 230 relative to the imaging device 20, and achieving precise adjustment of the relative position between the imaging device 20 and the tool 230. Based on this, the image acquired by the imaging device 20 can realistically and accurately display the parameters of the tool 230, improving the accuracy of the parameter measurement of the tool 230 and providing a reliable data basis for the parameter adjustment of the tool 230.

[0198] The images are multi-frame, and the acquired images change as the relative position between the tool 230 and the imaging device 20 changes. Understandably, the images are continuously updated as the relative position of the imaging device 20 and the tool 230 is constantly adjusted. When the adjustment of the relative position between the imaging device 20 and the tool 230 ends, the parameters of the tool 230 can be obtained from the image corresponding to the end of the adjustment. Alternatively, the images can continue to be updated, and the parameters of the tool 230 can be obtained from the updated images.

[0199] In some embodiments, the first parameter used to acquire the image is the thickness of the tool 230. Based on this, the measured value of the first parameter is the thickness measurement value of the tool 230, and the actual value of the first parameter is specifically the actual thickness of the tool 230.

[0200] In some embodiments, please refer to the following: Figure 5 , Figure 17 and Figure 24 Step S20 includes:

[0201] S21. The control system 40 acquires the measured value of the first parameter and compares the measured value of the first parameter with a preset threshold range.

[0202] S22, The control system 40 controls the drive mechanism 30 to drive the imaging device 20 to move and / or drive the positioning component 10 to move by comparing the measured value of the first parameter with the preset threshold range.

[0203] Specifically, when the measured value of the first parameter acquired by the control system 40 does not fall within the preset threshold range, the control system 40 sends a control command to the drive mechanism 30 to cause the drive mechanism 30 to rotate the imaging device 20 and / or the positioning member 10. Based on this, the control system 40 can acquire the measured value of the first parameter in real time, compare the measured value of the first parameter with the preset threshold range in real time, and then control the drive mechanism 30 to drive the imaging device 20 and / or the positioning member 10 to move in real time according to the real-time comparison result.

[0204] Step S30 includes:

[0205] S31, when the measured value of the first parameter is within a preset threshold range, the control system 40 acquires the parameters of the tool 230 through an image.

[0206] Specifically, when the measured value of the first parameter of the tool 230 obtained by the control system 40 falls within the preset threshold range, the control system 40 obtains the parameter of the tool 230 based on the image at this time.

[0207] By adopting the above technical solution, on the one hand, compared with manual data acquisition and processing, the accuracy of the measured value of the first parameter of the tool 230 can be improved, and the gap between the measured value and the true value of the first parameter of the tool 230 can be reduced, thus improving the parameter accuracy of the tool 230. On the other hand, compared with manually adjusting the relative position of the tool 230 and the imaging device 20, the adjustment efficiency and accuracy of the relative position between the tool 230 and the imaging device 20 can be improved, thereby also improving the focusing efficiency of the imaging device 20.

[0208] In some embodiments, please refer to the following: Figure 5 , Figure 7 , Figure 8 , Figure 14 and Figure 24 Step S30 includes:

[0209] S32. Obtain the first distance along the fifth direction between the tip of the first tool 230a of the tool holder 200 and the second tool 230b of the tool holder 200 through the image; the fifth direction is parallel to the thickness direction of the first tool 230a.

[0210] In this step, the first distance obtained is mainly used to reflect the fit between the first tool 230a and the second tool 230b.

[0211] This step can be applied to Figure 1 and Figure 3 The parameter measurement work of the tool 230 of the tool holder 200 is shown in the diagram.

[0212] In some implementations, when this step is applied... Figure 1 When illustrating the tool holder 200, the fit is measured using an image acquired when the first tool axis 220a, the second tool axis 220b, the first tool 230a, and the second tool 230b of the tool holder 200 are all in a stable state. This image is as follows: Figure 7 A schematic diagram is provided. For example, after the first cutter shaft 220a and the second cutter shaft 220b stop rotating, they need to be allowed to remain stationary for a period of time so that none of them—the first cutter shaft 220a, the second cutter shaft 220b, the first cutter 230a, or the second cutter 230b—would wobble. In this way, the first cutter shaft 220a, the second cutter shaft 220b, the first cutter 230a, and the second cutter 230b—are in a stable state. An image of the test area acquired based on this state is shown below. Figure 7 and Figure 8 As shown, the distance between the side of the first tool 230a facing the second tool 230b along direction Y and the side of the second tool 230b facing the first tool 230a along direction Y can be directly obtained. This distance is the first distance, which is also the axial clearance between the first tool 230a and the second tool 230b. Here, the axial direction refers to the axial direction of the first tool shaft 220a and the second tool shaft 220b, specifically parallel to direction Y and also parallel to the thickness direction of the first tool 230a and the second tool 230b. It can be understood that the fifth direction is direction Y as shown in the figure. In this implementation, the first distance is the distance dimension L2 as shown in the figure.

[0213] In some other implementations, when this step is applied... Figure 3 When the blade holder 200 is shown, the fit is measured by taking an image obtained after the first blade 230a and the second blade 230b of the blade holder 200 have moved in opposite directions along the Z direction, that is, when the first blade 230a and the second blade 230b are in the state of cutting the sheet. This image is shown below. Figure 14 A schematic image diagram. Based on the image of the test area acquired in this state, such as... Figure 14 As shown, the distance along the Y direction between the side of the first tool 230a facing the second tool 230b along the Y direction and the side of the second tool 230b facing the first tool 230a along the Y direction can be directly obtained. This distance is the first distance. Understandably, the fifth direction is the direction Y as shown in the figure. In this implementation, the first distance is the distance L8 shown in the figure.

[0214] By adopting the above technical solution, the fit between the first blade 230a and the second blade 230b can be measured using the image acquired by the imaging device 20. The acquired data (first distance) can be used to provide a data basis for adjusting the fit between the first blade 230a and the second blade 230b. Specifically, when the first distance is too large or too small, it means that the fit between the first blade 230a and the second blade 230b is too large or too small. The relative position between the first blade 230a and the second blade 230b can be adjusted accordingly based on the fit (first distance).

[0215] In some embodiments, please refer to the following: Figure 5 , Figures 7 to 10 , Figure 24 After step S20 and before step S30, the following is included:

[0216] Step 40: Drive the first tool axis 220a of the tool holder 200 to rotate at least one revolution.

[0217] In this step, the first cutter shaft 220a can be rotated manually or by an external drive device. The specific structure of the external drive device can be referenced from the drive mechanism 30, and will not be described in detail here.

[0218] One rotation of the first cutter shaft 220a means that the first cutter shaft 220a rotates 360°.

[0219] Step S30 also includes:

[0220] S33. Using images before and after rotating the first tool axis 220a at least one revolution, obtain the first distance between the first tool 230a on the first tool axis 220a and the second tool 230b on the second tool axis 220b, and obtain the difference between the two first distances.

[0221] This step applies to tool holders 200 where both the first tool shaft 220a and the second tool shaft 220b have cutting tools 230, such as... Figure 1 As shown.

[0222] Specifically, when the first cutter shaft 220a rotates, the first cutter shaft 220a and the first cutter 230a on it will jump. In this step, in some implementations, a first distance between the first cutter 230a and the second cutter 230b can be obtained based on an image of the first cutter shaft 220a in its rotating state. This first distance is as follows: Figure 9 The distance dimension L4 is shown in the diagram. Then, based on the image after the first tool axis 220a has rotated at least one revolution, the first distance between the first tool 230a and the second tool 230b is obtained, as shown in the diagram. Figure 10 The distance dimension L5 is shown in the diagram. Finally, the end face runout of the first tool 230a can be obtained by taking the difference between distance dimension L5 and distance dimension L4. The second tool 230b serves as the reference for obtaining the end face runout of the first tool 230a. Furthermore, in some implementations, multiple distance dimensions L4 and L5 can be obtained, and the difference between the maximum and minimum values ​​of the first distance can be used to represent the end face runout of the first tool 230a.

[0223] By adopting the above technical solution, the first tool axis 220a can be driven to rotate at least one revolution before the parameters of the tool 230 are obtained. Then, based on the images obtained before and after the first tool axis 220a rotates at least one revolution, the end face runout of the first tool 230a is obtained with the second tool 230b as a reference. This makes the method for measuring the end face runout relatively simple.

[0224] In some embodiments, please refer to the following: Figure 5 , Figure 7 , Figure 8 and Figure 24 Step S30 also includes:

[0225] S34. Obtain the second distance between the side of the first cutting axis 220a of the tool holder 200 facing away from the second cutting axis 220b and the side of the first cutting tool 230a of the first cutting axis 220a facing away from the second cutting axis 220b by the image.

[0226] In this step, such as Figure 7 As shown, the second distance is the distance along direction Z between the side of the first tool axis 220a facing away from the second tool axis 220b and the side of the first tool 230a facing away from the second tool axis 220b, as shown in the figure. Figure 7 The distance dimension L12 is shown in the diagram.

[0227] The first tool 230a is a circular tool 230, and the first tool 230a and the first tool shaft 220a are coaxially arranged. The second distance can also be understood as the radial distance of the portion of the first tool 230a that extends radially beyond the first tool shaft 220a.

[0228] S35. Obtain the third distance between the side of the first cutter axis 220a facing the second cutter axis 220b and the side of the second cutter axis 220b facing the first cutter axis 220a through the image;

[0229] In this step, such as Figure 7 As shown, the third distance is the distance along direction Z from the side of the first tool axis 220a toward the second tool axis 220b to the side of the second tool axis 220b toward the first tool axis 220a. Figure 7 The distance dimension L13 is shown in the diagram. The third distance can also be understood as the gap between the first tool axis 220a and the second tool axis 220b.

[0230] S36. Calculate the difference between the second distance and the third distance.

[0231] In this step, the difference between the second and third distances represents the overlap amount of the first tool 230a and the second tool 230b along the Z direction. This overlap amount is as follows: Figure 8 The distance dimension L3 is shown in the diagram.

[0232] By adopting the above technical solution, the overlap amount of the first tool 230a and the second tool 230b can be obtained by using the second distance and the third distance. Compared with directly obtaining the distance between the tip of the first tool 230a facing the second tool axis 220b and the end face of the second tool 230b facing the first tool axis 220a, the second distance and the third distance obtained in this step are both larger dimensions, which are easier to obtain, and the requirements for the clarity of the obtained image are lower, that is, the requirements for the resolution of the imaging device 20 are lower.

[0233] In some embodiments, please refer to the following: Figure 5 , Figure 12 , Figure 13 and Figure 24 Before step S10, the following steps are included:

[0234] S50, A first mark M is provided on the first tool shaft 220a of the tool holder 200 at axial intervals with the first tool 230a on the first tool shaft 220a;

[0235] In this step, the first mark M needs to be arranged around the outer periphery of the first cutter shaft 220a, so that the image obtained after the first cutter shaft 220a rotates can still display the first mark M.

[0236] After step S20 and before step S30, the following is included:

[0237] S60, drive the first tool axis 220a to rotate at least one revolution;

[0238] Step S30 includes:

[0239] S37. Obtain the images before and after rotating the first tool axis 220a at least one revolution, and obtain the fourth distance between the tip of the first tool 230a and the first mark M along the axial direction of the first tool axis 220a, and obtain the difference between the two fourth distances.

[0240] This step applies to tool holders 200 that only include the first tool axis 220a, such as... Figure 2 As shown, this also applies to a tool holder 200 including a first tool axis 220a and a second tool axis 220b, such as Figure 1 As shown.

[0241] Specifically, when the first cutter shaft 220a rotates, the tip of the first cutter shaft 220a and the first cutter 230a on it will jump. In this step, in some implementations, one of the fourth distances between the first cutter 230a and the first marker M can be obtained based on an image of the first cutter shaft 220a in its rotating state. This fourth distance is as follows: Figure 12 The dimension distance L6 is shown in the diagram. Then, based on the image after the first tool axis 220a has rotated at least one revolution, a fourth distance between the first tool 230a and the first mark M is obtained, which is as follows: Figure 13 The dimension distance L7 is shown in the diagram. Finally, the end face runout of the first tool 230a can be obtained by taking the difference between the distance dimension L7 and the distance dimension L6. Here, the first marker M serves as the reference for obtaining the end face runout of the first tool 230a. In addition, in some other implementations, multiple distance dimensions L6 and L7 can be obtained, and the difference between the maximum and minimum values ​​of the fourth distance can be taken to reflect the end face runout of the first tool 230a.

[0242] By adopting the above technical solution, before obtaining the parameters of the tool 230, a first mark M can be set on the tool shaft 220 where the tool 230 to be measured is located, and the tool shaft 220 can be driven to rotate at least one revolution. Then, based on the images obtained before and after the tool shaft 220 rotates at least one revolution, the end face runout of the tool 230 can be obtained with the first mark M as a reference. Based on this, the method for measuring the end face runout is relatively simple.

[0243] In some embodiments, such as Figure 5 , Figures 19 to 21 As shown, before step S10, the following steps are included:

[0244] S70. Position the tool holder 200 on the positioning member 10;

[0245] In this step, the tool 230 is assembled onto the mounting bracket 210, and the mounting bracket 210 is positioned on the positioning member 10, so as to achieve the positioning of the mounting bracket 210 and the tool 230 relative to the positioning member 10.

[0246] Furthermore, during the process of positioning the tool holder 200 on the positioning member 10, or between step S70 and step S10, the area to be tested of the tool holder 200 must be brought into the imaging field of view of the imaging device 20 so that the imaging device 20 can acquire an image of the area to be tested of the tool holder 200. Specifically, the area to be tested of the tool holder 200 is set on one side of the imaging device 20 along direction X, and the light incident side S1 of the imaging device 20 is aligned with the area to be tested of the tool holder 200 along direction X, so that the area to be tested of the tool holder 200 is located in the imaging field of view of the imaging device 20.

[0247] In some embodiments, please refer to the following: Figure 5 , Figures 19 to 21 Step S70 includes:

[0248] S71. The tool holder 200 is pushed into the positioning groove 101 from the opening 102 of the positioning groove 101 of the positioning member 10 along the first direction, so that the tool holder 200 is limited to the first positioning part 11 of the positioning member 10 along the first direction.

[0249] In this step, after the tool holder 200 is pushed into the positioning groove 101 along the first direction, the tool holder 200 will also be confined in the positioning groove 101 along the second direction. The first direction is the direction Y as shown in the figure.

[0250] By adopting the above technical solution, the tool holder 200 only needs to be pushed from the opening 102 of the positioning groove 101 into the positioning groove 101 until the tool holder 200 pushes against the first positioning part 11 in the direction of pushing, so as to realize the positioning operation of the tool holder 200 on the positioning member 10. It is very simple and easy to implement.

[0251] In some embodiments, please refer to the following: Figure 5 , Figure 6 , Figures 18 to 23 After step S70 and before step S10, the following is included:

[0252] S80, the first moving mechanism 60 drives the positioning member 10 to move along a third direction, and the second moving mechanism 70 drives the positioning member 10 to move along a fourth direction, so that the area to be measured falls into the imaging field of view of the imaging device 20.

[0253] In this step, the first moving mechanism 60 can first drive the positioning member 10 to move along a third direction, and then the second moving mechanism 70 can drive the positioning member 10 to move along a fourth direction. Of course, the first moving mechanism 60 and the second moving mechanism 70 can also drive the positioning member 10 to move simultaneously or alternately.

[0254] The first moving mechanism 60 and the second moving mechanism 70 can be driven under manual control or under computer control.

[0255] The third direction is Y, as shown in the figure, and the fourth direction is X, as shown in the figure.

[0256] This configuration allows the first moving mechanism 60 and the second moving mechanism 70 to drive the positioning member 10 to move linearly, so that the tool holder 200 on the positioning member 10 moves relative to the imaging device 20, thereby achieving a coarse adjustment effect on the relative position of the imaging device 20 and the tool 230 on the tool holder 200.

[0257] As one embodiment of this application, such as Figure 5 , Figure 6 and Figure 17 As shown, the parameter measuring device 100 includes a positioning member 10, a first moving mechanism 60, a second moving mechanism 70, a driving mechanism 30, an imaging device 20, and a supplementary light 50. The positioning member 10 has a positioning groove 101 for positioning the tool holder 200, and the positioning groove 101 has an opening 102. A first positioning part 11 is provided on the side of the positioning groove 101 opposite to the opening 102 along the Y direction, and second positioning parts 12 are provided on both sides of the positioning groove 101 along the X direction. The imaging device 20 and the supplementary light 50 are spaced apart along the X direction, and the light-incident side S1 of the imaging device 20 and the light-exit side S2 of the supplementary light 50 are arranged facing each other along the X direction. The first moving mechanism 60 drives the positioning member 10 to move along the Y direction, the second moving mechanism 70 drives both the first moving mechanism 60 and the positioning member 10 to move along the X direction, and the driving mechanism 30 drives the second moving mechanism 70, the first moving mechanism 60, and the positioning member 10 to rotate together, with the rotation axis S3 of the positioning member 10 parallel to the Z direction. In addition, the imaging device 20, the supplementary light 50, the drive mechanism 30, the first moving mechanism 60 and the second moving mechanism 70 can all be electrically connected to the control system 40.

[0258] When the parameter measuring device 100 is working, the operator first manually or with a robotic arm pushes the tool holder 200 into the positioning groove 101 from the opening 102 along the Y direction until the tool holder 200 abuts against the first positioning part 11 along the Y direction. At this time, the tool holder 200 also abuts against the second positioning parts 12 on both sides of the positioning groove 101 along the X direction. Then, the first moving mechanism 60 drives the positioning member 10 to move along the Y direction, and the second moving mechanism 70 drives the positioning member 10 to move along the X direction, so that the area to be measured of the tool holder 200 enters the imaging field of view of the imaging device 20, thereby completing the coarse adjustment of the relative position between the tool 230 on the tool holder 200 and the imaging device 20. The control system 40 controls the supplementary light 50 to turn on and controls the imaging device 20 to acquire images of the area to be measured on the tool holder 200 in real time. The control system 40 obtains the thickness measurement value of the tool 230 through the image and compares the thickness measurement value of the tool 230 with a preset threshold range. Based on the comparison result, the control system 40 controls the drive mechanism 30 to drive the positioning member 10 to rotate, so as to achieve fine adjustment of the relative position of the tool 230 and the imaging device 20. When the thickness measurement value of the tool 230 falls within the preset threshold range, the fine adjustment of the relative position of the tool 230 and the imaging device 20 ends, the control system 40 controls the drive mechanism 30 to stop driving, and the control system 40 obtains the parameters of the tool 230 through the image acquired at this time.

[0259] After the coarse adjustment of the relative position between the tool 230 and the imaging device 20 is completed, the control system 40 can also determine whether the area to be tested of the tool holder 200 is completely within the imaging field of view of the imaging device 20 based on the image acquired in real time by the imaging device 20. If the area to be tested of the tool holder 200 is not completely within the imaging field of view of the imaging device 20, that is, if the image acquired by the imaging device 20 at this time is difficult to fully represent the area to be tested of the tool holder 200, the control system 40 can also control the first moving mechanism 60 and the second moving mechanism 70 to drive the positioning member 10 to move so that the area to be tested of the tool holder 200 enters the imaging field of view of the imaging device 20.

[0260] The above are merely optional embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A parameter measuring device (100), wherein The parameter measurement device (100) is used for measuring the parameter of the tool (230), and the parameter of the tool (230) comprises at least one of the following: the fitting degree, the tool stack amount and the end face runout amount of the tool (230). The first parameter is the thickness of the tool (230). The parameter measurement device (100) further comprises a control system (40) electrically connected to the driving mechanism (30) and the imaging device (20) and used for controlling the driving mechanism (30) to drive the imaging device (20) to move and / or drive the positioning member (10) to move, so that the measured value of the first parameter is within a preset threshold range. The imaging device (20) has a lens (21), and the imaging device (20) acquires the image of the to-be-measured region through the lens (21); or the imaging device (20) comprises a microscope. The lens (21) is a telecentric lens.

2. The parameter measuring apparatus (100) according to claim 1, wherein The parameter measurement device (100) further comprises a light supplement lamp (50), the light supplement lamp (50) and the imaging device (20) are distributed at intervals, and the light supplement lamp (50) is used for emitting light towards the to-be-measured region.

3. The parameter measuring apparatus (100) according to claim 1, wherein The driving mechanism (30) is used for driving the imaging device (20) to rotate and / or driving the positioning member (10) to rotate, so as to adjust the measured value of the first parameter.

4. The parameter measuring device (100) according to any one of claims 1 to 3, wherein The driving mechanism (30) comprises a driver (31) and a transmission assembly (32), the transmission assembly (32) is connected to the output end of the driver (31), and the transmission assembly (32) is connected to the imaging device (20) or the positioning member (10).

5. The parameter measuring apparatus (100) according to claim 4, wherein The positioning member (10) is provided with a positioning groove (101), the positioning groove (101) is provided with an opening (102) for the tool holder (200) to enter and exit the positioning groove (101) along a first direction; the positioning groove (101) is provided with a first positioning part (11) on the other side of the opening (102) along the first direction, and the first positioning part (11) is used for limiting the tool holder (200) along the first direction.

6. The parameter measuring device (100) according to any one of claims 1 to 3, wherein The positioning groove (101) is provided with a second positioning part (12) for limiting the tool holder (200) on both sides along a second direction; and the first direction and the second direction intersect.

7. The parameter measuring device (100) according to any one of claims 1 to 3, wherein ​ 8. The parameter measuring apparatus (100) according to any one of claims 1 to 3, wherein ​ 9. The parameter measuring device (100) according to any one of claims 1 to 3, wherein ​ 10. The parameter measuring apparatus (100) according to claim 9, wherein ​ 11. The parameter measuring apparatus (100) according to any one of claims 1 to 3, wherein The parameter measuring device (100) further comprises a first moving mechanism (60) and a second moving mechanism (70), the first moving mechanism (60) is used for driving the positioning piece (10) and the tool holder (200) to reciprocate along a third direction together, and the second moving mechanism (70) is used for driving the first moving mechanism (60), the positioning piece (10) and the tool holder (200) to reciprocate along a fourth direction together, and the third direction and the fourth direction intersect.

Images