Size detection method and size detection device

Abstract

The present application provides a dimension detection method and device for detecting the width between a first side surface and a second side surface of a workpiece that are opposite and parallel to each other. The dimension detection method includes: providing a carrier platform, on which a first standard component having a first standard surface and a second standard component having a second standard surface are provided, the second standard surface being parallel to the first standard surface, and the distance between the two being the standard width of the standard workpiece; placing the workpiece between the first standard component and the second standard component, with the first standard component located on one side of the first side surface and the second standard component located on one side of the second side surface; measuring a first perpendicular distance between the first standard surface and the first side surface; measuring a second perpendicular distance between the second standard surface and the second side surface; and determining the width between the first side surface and the second side surface based on the standard width, the first perpendicular distance, and the second perpendicular distance. The above-mentioned dimension detection method eliminates the influence of inaccurate positioning and temperature changes on the workpiece size, thereby improving the detection accuracy of the workpiece.

Description

Technical Field

[0001] The present application relates to the field of dimension detection technology, and in particular to a dimension detection method and a dimension detection device. Background Art

[0002] When inspecting the dimensions of a product in batches, a test piece is typically used to directly measure the distance between two sides of a workpiece in a specific direction (e.g., length or width) to determine the workpiece's dimensions in that direction. However, during the inspection process, factors such as inaccurate workpiece positioning and temperature fluctuations can cause fluctuations in the measured values, leading to inaccurate dimensional measurements. Summary of the Invention

[0003] In view of the above, it is necessary to provide a dimension detection method and a dimension detection device to solve the technical problem of how to improve the detection accuracy of workpieces.

[0004] An embodiment of the present application provides a dimension detection method for detecting a width between a first side surface and a second side surface that are opposite and parallel to a workpiece. The dimension detection method includes:

[0005] A carrier platform is provided, wherein a first standard component and a second standard component are provided on the carrier platform, wherein the first standard component has a first standard surface, and the second standard component has a second standard surface, the second standard surface is parallel to the first standard surface, and the distance between the first standard surface and the second standard surface is the standard width between the first side surface and the second side surface of the standard workpiece;

[0006] The workpiece is placed between the first standard component and the second standard component, wherein the first standard component is located on one side of the first side surface, and the second standard component is located on one side of the second side surface;

[0007] measuring a first perpendicular distance between the first standard surface and the first side surface;

[0008] measuring a second perpendicular distance between the second standard surface and the second side surface;

[0009] A width between a first side surface and a second side surface of the workpiece is determined based on the standard width, the first perpendicular distance, and the second perpendicular distance.

[0010] In some embodiments, the size detection method also includes: positioning the workpiece so that the workpiece is stationary relative to the supporting platform; between the method of measuring the first vertical distance between the first standard surface and the first side surface and the method of measuring the second vertical distance between the second standard surface and the second side surface, it also includes: driving the supporting platform to rotate 180°.

[0011] In some embodiments, the method for measuring the first perpendicular distance between the first standard surface and the first side surface includes:

[0012] Selecting a first reference point on one side of the first side surface;

[0013] Measuring a first distance H1 between the first reference point and the first standard surface;

[0014] measuring a second distance h1 from the first reference point to the first side surface;

[0015] The first vertical distance is determined according to the first distance H1 and the second distance h1.

[0016] In some embodiments, the method of measuring the first distance H1 between the first reference point and the first standard surface includes:

[0017] A distance measuring sensor is arranged at the first reference point, and the first standard surface has a first vertical point, so that a line between the first reference point and the first vertical point is perpendicular to the first standard surface;

[0018] The distance between the first reference point and the first vertical point measured by the distance measuring sensor is a first distance H1 between the first reference point and the first standard surface.

[0019] In some embodiments, the method of measuring the second distance h1 from the first reference point to the first side surface includes:

[0020] moving the carrying platform in a direction parallel to the first side surface;

[0021] A second distance h1 between the first reference point and the first side surface is measured by the distance measuring sensor.

[0022] The present application also provides a size detection device for detecting a width between a first side surface and a second side surface that are opposite and parallel to a workpiece, the size detection device comprising:

[0023] A carrying platform, used for carrying the workpiece;

[0024] A first standard component, provided on the carrying platform and having a first standard surface;

[0025] a second standard component, disposed on the supporting platform and having a second standard surface, the workpiece being disposed between the first standard component and the second standard component, the first standard surface being parallel to the first side surface, and the second standard surface being parallel to the second side surface; and

[0026] The detection mechanism is used to measure a first perpendicular distance between the first standard surface and the first side surface, and to measure a second perpendicular distance between the second standard surface and the second side surface.

[0027] In some embodiments, the size detection device further comprises:

[0028] The first driving member is connected to the supporting platform and is used to drive the supporting platform to move the workpiece in a direction parallel to the length direction of the first side surface or the second side surface.

[0029] In some embodiments, the size detection device further comprises:

[0030] The second driving member is connected to the supporting platform and is used to drive the supporting platform to drive the workpiece to rotate 180 degrees.

[0031] In some embodiments, the size detection device further comprises:

[0032] A positioning mechanism is connected to the supporting platform, and is used to position the workpiece so that the workpiece is stationary relative to the supporting platform.

[0033] In some embodiments, the supporting platform is provided with a plurality of slide grooves; the positioning mechanism includes a plurality of positioning pins, each of the positioning pins is slidably arranged in the slide groove, and the plurality of positioning pins are arranged to form a positioning area for positioning the workpiece.

[0034] In the above-mentioned dimension detection method and dimension detection device, since the first standard part and the second standard part are provided, the first standard surface on the first standard part is parallel to the first side surface, and the second standard surface on the second standard part is parallel to the second side surface, thereby forming a reference surface for workpiece detection. The first standard part and the second standard part will be affected by inaccurate positioning or temperature changes at the same time as the workpiece, and the relative position of the workpiece and the first standard part and the second standard part remains unchanged. The first vertical distance is determined by the first standard surface and the first side surface, and the second vertical distance is determined by the second standard surface and the second side surface, so that the width between the first side surface and the second side surface of the workpiece determined according to the standard width, the first vertical distance and the second vertical distance eliminates the influence of inaccurate positioning, temperature changes, etc. on the workpiece size, thereby improving the detection accuracy of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of the workpiece in this application.

[0036] Figure 2 This is a schematic diagram of the three-dimensional structure of the size detection device according to an embodiment of the present application.

[0037] Figure 3 for Figure 2First top view of the workpiece and part of the size detection device.

[0038] Figure 4 This is a flow chart of the size detection method according to an embodiment of the present application.

[0039] Figure 5 for Figure 4 Schematic diagram of the process of step S30.

[0040] Figure 6 for Figure 5 Flow chart of step S320 in FIG.

[0041] Figure 7 for Figure 5 Flow chart of step S330 in FIG.

[0042] Figure 8 for Figure 2 Second top view of the workpiece and part of the size detection device.

[0043] Figure 9 for Figure 2 The third top view of the workpiece and part of the size detection device.

[0044] Figure 10 for Figure 4 Schematic diagram of the process of step S40.

[0045] Figure 11 for Figure 10 Flow chart of step S420 in FIG.

[0046] Figure 12 for Figure 2 Fourth top view of the workpiece and part size detection device.

[0047] Description of main component symbols

[0048] Workpiece 10

[0049] First side 11

[0050] Second side 12

[0051] Size detection device 20

[0052] Carrying platform 21

[0053] First standard 22

[0054] First standard surface 221

[0055] Second standard 23

[0056] Second standard surface 231

[0057] Testing agency 24

[0058] Distance sensor 241

[0059] Processor 242

[0060] First driving member 25

[0061] Second driving member 26

[0062] Positioning mechanism 27

[0063] Positioning pin 271 DETAILED DESCRIPTION

[0064] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application.

[0065] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0066] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0067] An embodiment of the present application provides a dimension detection method for detecting the width between a first side surface and a second side surface that are opposite and parallel to a workpiece, the dimension detection method comprising: providing a supporting platform, on which a first standard part and a second standard part are arranged, the first standard part having a first standard surface, the second standard part having a second standard surface, the second standard surface being parallel to the first standard surface, and the distance between the first standard surface and the second standard surface being the standard width between the first side surface and the second side surface of the standard workpiece; placing the workpiece between the first standard part and the second standard part, with the first standard part being located on one side of the first side surface and the second standard part being located on one side of the second side surface; measuring a first perpendicular distance between the first standard surface and the first side surface; measuring a second perpendicular distance between the second standard surface and the second side surface; and determining the width between the first side surface and the second side surface of the workpiece based on the standard width, the first perpendicular distance, and the second perpendicular distance.

[0068] In the above-mentioned size detection method, since the first standard part and the second standard part are set, the first standard surface on the first standard part is parallel to the first side surface, and the second standard surface on the second standard part is parallel to the second side surface, so that the first standard surface and the second standard surface form reference surfaces when the workpiece is detected. The first standard part and the second standard part will be affected by inaccurate positioning or temperature changes at the same time as the workpiece. The relative position of the workpiece and the first standard part and the second standard part remains unchanged. The first vertical distance is determined by the first standard surface and the first side surface, and the second vertical distance is determined by the second standard surface and the second side surface. The width between the first side surface and the second side surface of the workpiece determined according to the standard width, the first vertical distance and the second vertical distance eliminates the influence of inaccurate positioning, temperature changes, etc. on the workpiece size, thereby improving the detection accuracy of the workpiece.

[0069] An embodiment of the present application also provides a dimension detection device for detecting the width between a first side surface and a second side surface that are opposite and parallel to a workpiece. The dimension detection device includes: a carrying platform for carrying the workpiece; a first standard part, arranged on the carrying platform and having a first standard surface; a second standard part, arranged on the carrying platform and having a second standard surface, the workpiece is arranged between the first standard part and the second standard part, and the first standard surface is parallel to the first side surface, and the second standard surface is parallel to the second side surface; a detection mechanism for measuring a first vertical distance between the first standard surface and the first side surface, and measuring a second vertical distance between the second standard surface and the second side surface.

[0070] The following describes in detail the various embodiments of the present invention in conjunction with the accompanying drawings.

[0071] See Figure 1 , Figure 1Schematic diagram of the three-dimensional structure of a workpiece. Specifically, workpiece 10 is a rectangular parallelepiped including a first side surface 11 and a second side surface 12 that are opposite and parallel to each other. The dimension of workpiece 10 obtained using the dimension detection method is the distance between first side surface 11 and second side surface 12. For ease of explanation, the direction perpendicular to first side surface 11 and second side surface 12 is referred to as the width direction of workpiece 10 in the following description. Workpiece 10 can be a component, a semi-finished product, or a finished product.

[0072] Please also see Figure 2 and Figure 3 In some embodiments, the size detection device 20 includes a carrier 21, a first standard component 22, a second standard component 23, and a detection mechanism 24. The carrier 21 is used to support the workpiece 10. The first standard component 22 is disposed on the carrier 21 and has a first standard surface 221. The second standard component 23 is disposed on the carrier 21 and has a second standard surface 231. The distance between the first standard surface 221 and the second standard surface 231 is the standard width between the first side surface and the second side surface of the standard workpiece. The workpiece 10 is disposed between the first standard component 22 and the second standard component 23, and the first standard surface 221 is parallel to the first side surface 11, and the second standard surface 231 is parallel to the second side surface 12. The detection mechanism 24 is used to measure a first perpendicular distance between the first standard surface 221 and the first side surface 11, and a second perpendicular distance between the second standard surface 231 and the second side surface 12.

[0073] like Figure 3 As shown, the width of the first side 11 and the second side 12 of the workpiece 10 is equal to the first vertical distance between the first side 11 and the first standard surface 221 plus the second vertical distance between the second side 12 and the second standard surface 231 plus the distance between the first standard surface 221 and the second standard surface 231.

[0074] In this embodiment, the workpiece 10 is a rectangular parallelepiped, and two first standard components 22 and two second standard components 23 are provided. The two first standard components 22 are located at opposite ends of the first side 11 of the workpiece 10, and the two second standard components 23 are located at opposite ends of the second side 11 of the workpiece 10. In other embodiments, both the first standard component 22 and the second standard component 23 may be provided as a single component. Specifically, the first standard component 22 is located on one side of a corner (or a bend) connected to the first side 11 of the workpiece 10, and the second standard component 23 is located on one side of a corner (or a bend) connected to the second side 12 of the workpiece 10. The first standard component 22 and the second standard component 23 are fixedly mounted on a support platform.

[0075] It is understood that the standard width of the standard workpiece is defined by the first standard member 22 and the second standard member 23 in the dimension detection device 20 of this embodiment. That is, the standard width of the standard workpiece defined by the first standard member 22 and the second standard member 23 is in the same external environment as the workpiece 10 to be measured. When external factors such as inaccurate positioning or temperature changes affect the dimensions of the workpiece 10, the first standard member 22 and the second standard member 23 are also affected. For the workpiece 10 to be measured, the influence of these external factors can be eliminated, thereby achieving more accurate test results.

[0076] Specifically, in the above-mentioned size detection device 20, the first standard surface 221 on the first standard part 22 is parallel to the first side surface 11, and the second standard surface 231 on the second standard part 23 is parallel to the second side surface 12, so that the first standard surface 221 and the second standard surface 231 form a reference surface when detecting the workpiece 10. The first standard part 22 and the second standard part 23 will be affected by inaccurate positioning or temperature changes at the same time as the workpiece 10. The first vertical distance is determined by the first standard surface 221 and the first side surface 11, and the second vertical distance is determined by the second standard surface 231 and the second side surface 12, thereby eliminating the influence of inaccurate positioning and temperature changes on the workpiece size, thereby improving the detection accuracy of the workpiece 10.

[0077] In some embodiments, the material of the first standard component 22 and the second standard component 23 is the same as that of the workpiece 10 , further eliminating the influence of factors such as temperature change on the workpiece size detection.

[0078] In other embodiments, the first standard component 22 and the second standard component 23 can also be arranged on one side of the planar portion of the first side surface 11. The first standard surface 221 in the first standard component 22 can be a surface that is higher than the upper surface of the workpiece 10, and the second standard surface 231 of the second standard component 23 can be a surface that is higher than the upper surface of the workpiece 10. As long as the distance between the first standard surface 221 and the second standard surface 231 is the standard width of the standard workpiece, the positions of the first standard component 22 and the second standard component 23 are not limited.

[0079] See Figure 2 In some embodiments, the size detection device 20 includes a first driving member 25, which is connected to the carrier 21 and is used to drive the carrier 21 to move the workpiece 10 in a direction parallel to the length direction of the first side surface 11 or the second side surface 12. For example, the first driving member 25 can be a motor. By using the first driving member 25, the distance between the detection mechanism 24 and the first standard surface 221 or the distance between the detection mechanism 24 and the first side surface 11 of the workpiece 10 can be automatically measured by simply changing the position of the workpiece while the position of the detection mechanism 24 remains unchanged, thereby improving detection convenience.

[0080] In some embodiments, the size detection device 20 further includes a second driving member 26, which is connected to the carrier 21 and is used to drive the carrier 21 to drive the workpiece 10 to rotate 180°. For example, the second driving member 26 can be a motor or a machine. By using the second driving member 26, the distance between the detection mechanism 24 and the first standard surface 221, the distance between the detection mechanism 24 and the first side surface 11 of the workpiece 10, the distance between the detection mechanism 24 and the second standard surface 231, and the distance between the detection mechanism 24 and the second side surface 12 of the workpiece 10 can be automatically measured without changing the position of the workpiece, thereby improving the convenience of detection.

[0081] Please continue to see Figure 2 In some embodiments, the detection mechanism 24 includes a distance measuring sensor 241 and a processor 242. The distance measuring sensor 241 is used to measure a first perpendicular distance between the first standard surface 221 and the first side surface 11, and a second perpendicular distance between the second standard surface 231 and the second side surface 12. The processor 242 is electrically connected to the distance measuring sensor 241 and is used to obtain data measured by the distance measuring sensor 241 and, based on the obtained data, calculate the width between the first side surface 11 and the second side surface 12 of the workpiece 10 using a preset calculation formula. Exemplarily, the distance measuring sensor 241 can be a laser sensor, an ultrasonic sensor, or an infrared sensor.

[0082] In some embodiments, the detection mechanism 24 may further include a display or an alarm (not shown in the figure), which is connected to the processor to display whether the workpiece meets the standards or to alarm if the workpiece does not meet the standards.

[0083] In other embodiments, the processor 242 may not be required, and after the distance measuring sensor 241 measures the relevant distance, the relevant size of the workpiece may be obtained by manual calculation.

[0084] Please continue to see Figure 2 In some embodiments, the size detection device 20 further includes a positioning mechanism 27 , which is connected to the carrier platform 21 and is used to position the workpiece 10 so that the workpiece 10 is stationary relative to the carrier platform 21 .

[0085] In some embodiments, the support platform 21 is provided with a plurality of slide grooves (not shown in the figure), and the positioning mechanism 27 includes a plurality of positioning pins 271. Each positioning pin 271 located on one side of the first side or on one side of the second side is slidably arranged in the slide groove in a direction perpendicular to the first standard surface 221. The plurality of positioning pins 271 are arranged to form a positioning area for flexibly positioning the workpiece 10.

[0086] It can be understood that the “for” in the above embodiments means “can be used for” or “can be used for” rather than “can only be used for” or “must be used for”.

[0087] See Figure 4 In some embodiments, the size detection method includes:

[0088] S10, provide a supporting platform 21, on which a first standard part 22 and a second standard part 23 are provided, the first standard part 22 has a first standard surface 221, the second standard part 23 has a second standard surface 231, the second standard surface 231 is parallel to the first standard surface 221, and the distance between the first standard surface 221 and the second standard surface 231 is the standard width between the first side surface and the second side surface of the standard workpiece.

[0089] In this embodiment, the standard workpiece refers to a workpiece that meets design requirements, including material, size, etc. The standard width refers to the distance between two opposite side surfaces of the standard workpiece.

[0090] S20 , placing the workpiece between the first standard component 22 and the second standard component 23 , wherein the first standard component 22 is located on one side of the first side surface 11 , and the second standard component 23 is located on one side of the second side surface 12 .

[0091] In some embodiments, the workpiece 10 can be driven to move by automated equipment (for example, a motor, a robot, etc.) so that the workpiece 10 is located between the first standard part 22 and the second standard part 23. The first standard part 22 is located on one side of the first side surface 11. The first standard part 22 can be located on one side of the first side surface 11 as a whole or as a part of the first standard part 22. The second standard part 23 is located on one side of the second side surface 12. The second standard part 23 can be located on one side of the second side surface 12 as a whole or as a part of the second standard part 23.

[0092] In this embodiment, the first standard component 22 being located on one side of the first side surface 11 means that the first standard surface 221 of the first standard component 22 is located on one side of the first side surface 11, and the second standard component 23 being located on one side of the second side surface 12 means that the second standard surface 231 of the second standard component 23 is located on one side of the second side surface 12, that is, in the width direction of the workpiece 10, the workpiece 10 is located between the first standard surface 221 and the second standard surface 231.

[0093] S30 , measuring a first perpendicular distance between the first standard surface 221 and the first side surface 11 .

[0094] Specifically, a point is selected on the outside of the workpiece 10, and the vertical distance from the point along the width direction of the workpiece 10 to the first standard surface 221 and the first side surface 11 is obtained manually or by equipment. Based on the vertical distance from the point along the width direction of the workpiece 10 to the first standard surface 221 and the first side surface 11, the first vertical distance between the first standard surface 221 and the first side surface 11 is measured.

[0095] S40 , measuring a second perpendicular distance between the second standard surface 231 and the second side surface 12 .

[0096] Specifically, a point is selected on the outside of the workpiece 10, and the vertical distance from the point along the width direction of the workpiece 10 to the second standard surface and the second side surface is obtained manually or by equipment. Based on the vertical distance from the point along the width direction of the workpiece 10 to the second standard surface and the second side surface, the second vertical distance between the second standard surface and the second side surface is measured.

[0097] S50 , determining a width between the first side surface 11 and the second side surface 12 of the workpiece 10 based on the standard width, the first vertical distance, and the second vertical distance.

[0098] For ease of description, the standard width, the first vertical distance, and the second vertical distance are respectively denoted as Bz, Lf, and Ls, and the width between the first side surface 11 and the second side surface 12 of the workpiece 10 is denoted as W, then W=Bz+Lf+Ls.

[0099] In the above-mentioned dimension detection method, since the first standard component 22 and the second standard component 23 are provided, the first standard surface 221 on the first standard component 22 is parallel to the first side surface 11, and the second standard surface 231 on the second standard component 23 is parallel to the second side surface 12, so that the first standard surface 221 and the second standard surface 231 form reference surfaces when inspecting the workpiece. The first standard component 22 and the second standard component 23 are affected by positioning inaccuracy or temperature changes synchronously with the workpiece. The relative positions of the workpiece 10 and the first standard component 22 and the second standard component 23 remain unchanged. The first vertical distance is determined by the first standard surface 221 and the first side surface 11, and the second vertical distance is determined by the second standard surface 231 and the second side surface 12. Therefore, the width between the first side surface 11 and the second side surface 12 of the workpiece determined according to the standard width, the first vertical distance, and the second vertical distance eliminates the influence of positioning inaccuracy, temperature changes, etc. on the workpiece size, thereby improving the detection accuracy of the workpiece.

[0100] See Figure 5 In some embodiments, the method of measuring the first perpendicular distance between the first standard surface 221 and the first side surface 11 in S30 includes:

[0101] S310 , selecting a first reference point on one side of the first side surface 11 .

[0102] Specifically, the first reference point is located on one side of the first side surface 11 along the width direction of the workpiece.

[0103] S320 , measuring a first distance H1 between the first reference point and the first standard surface 221 .

[0104] Specifically, the first distance H1 between the first reference point and the first standard surface 221 is the distance between the first reference point and the first standard surface 221 in the width direction of the workpiece 10 .

[0105] S330 , measuring a second distance h1 between the first reference point and the first side surface 11 .

[0106] Specifically, the first distance h1 between the first reference point and the first side surface 11 is the distance between the first reference point and the first side surface 11 in the width direction of the workpiece 10 .

[0107] S340: Determine a first vertical distance according to the first distance H1 and the second distance h1.

[0108] Specifically, the first vertical distance Lf satisfies the relationship: Lf=H1-h1.

[0109] See Figure 6 In some embodiments, the method of measuring the first distance H1 between the first reference point and the first standard surface in S320 includes:

[0110] S321 , setting a distance measuring sensor 241 at a first reference point, where the first standard surface 221 has a first vertical point, such that a line between the first reference point and the first vertical point is perpendicular to the first standard surface 221 .

[0111] In this embodiment, the distance measuring sensor 241 may be a laser sensor, an ultrasonic sensor, or an infrared sensor.

[0112] S322 , the distance between the first reference point and the first vertical point is measured by the distance measuring sensor 241 , that is, a first distance H1 between the first reference point and the first standard surface 221 .

[0113] In this embodiment, the distance measuring sensor 241 in the size detection device 20 can be used to perform step S322, wherein the detection state formed by the size detection device 20 performing step S322 is as follows: Figure 3 shown.

[0114] See Figure 7 In some embodiments, the method of measuring the second distance h1 from the first reference point to the first side surface 11 in S330 includes:

[0115] S331 , moving the carrying platform 21 in a direction parallel to the first side surface 11 .

[0116] In this embodiment, the first driving member 25 in the above-mentioned size detection device 20 can drive the supporting platform to move the workpiece 10 in a direction parallel to the first side surface 11, so that the first standard surface 221 and the first reference point are misaligned in the width direction of the workpiece 10, and the first side surface 11 and the first reference point correspond to each other in the width direction of the workpiece 10.

[0117] S332 , measuring a second distance h1 between the first reference point and the first side surface 11 by the distance measuring sensor 241 .

[0118] In this embodiment, the distance measuring sensor 241 of the size detection device 20 can be used to perform step S332, and the detection state formed by the size detection device 20 performing step S332 is as follows: Figure 8 shown.

[0119] Please continue to see Figure 4 In some embodiments, the size detection method further includes:

[0120] S23, positioning the workpiece 10 so that the workpiece 10 is stationary relative to the supporting platform.

[0121] Specifically, this step may be between steps S20 and S30. The workpiece 10 being stationary relative to the carrier means that the workpiece 10 and the carrier form a whole that moves together, the workpiece 10 can move synchronously with the carrier, and during the movement, the workpiece 10 is stationary relative to the carrier.

[0122] The method of measuring the first perpendicular distance between the first standard surface 221 and the first side surface 11 in step S30 and measuring the second perpendicular distance between the second standard surface 231 and the second side surface 12 in step S40 further includes:

[0123] S34, driving the carrier to rotate 180°.

[0124] In this embodiment, the second driving member 26 in the size detection device 20 can be used to drive the carrier to rotate 180 degrees, so that the first vertical distance and the second vertical distance are measured simultaneously by the distance sensor 241 set at the first reference point. After the carrier 21 rotates 180 degrees, the second side surface 12 corresponds to the first reference point in the width direction of the workpiece 10. The state formed by the size detection device 20 executing step S34 is as follows: Figure 9 See Figure 10 The method of measuring the second vertical distance between the second standard surface 231 and the second side surface 12 in step S40 includes:

[0125] S410 , measuring a third distance h2 between the first reference point and the second side surface 12 .

[0126] Specifically, the third distance h2 between the first reference point and the second side surface 12 is the distance between the first reference point and the second side surface 12 in the width direction of the workpiece 10 .

[0127] In this embodiment, the distance measuring sensor 241 in the size detection device 20 can be used to perform step S410, and the state of the size detection device 20 after performing step S410 is as shown in FIG. Figure 9 shown.

[0128] S420 , measuring a fourth distance H2 between the first reference point and the second standard surface 231 .

[0129] Specifically, the fourth distance H2 between the first reference point and the second standard surface 231 is the distance between the first reference point and the second standard surface 231 in the width direction of the workpiece 10 .

[0130] S430: Determine a second vertical distance according to the third distance h2 and the fourth distance H2.

[0131] Specifically, the second vertical distance Ls satisfies the relationship: Ls=H2-h2.

[0132] See Figure 11 In some embodiments, the method of measuring the fourth distance between the first reference point and the second standard surface 231 in S420 includes:

[0133] S421 , moving the carrying platform 21 in a direction parallel to the first side surface 11 .

[0134] In this embodiment, the first driving member 25 in the above-mentioned size detection device 20 can drive the supporting platform 21 to move the workpiece 10 in a direction parallel to the first side surface 11, so that the second side surface 12 and the first reference point are misaligned in the width direction of the workpiece 10, and the second standard surface 231 corresponds to the first reference point in the width direction of the workpiece 10.

[0135] S422 , measuring a fourth distance H2 between the first reference point and the second standard surface 231 by the distance measuring sensor 241 .

[0136] In this embodiment, the distance measuring sensor 241 in the size detection device 20 can be used to perform step S422, and the detection state of the size detection device 20 performing step S422 is shown in FIG. Figure 12 shown.

[0137] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all variations that come within the meaning and range of equivalents of the claims are intended to be embraced herein.

[0138] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A dimension detection method for detecting the width between a first side surface and a second side surface of a workpiece that are opposite and parallel to each other, wherein: The size detection method comprises: A carrier platform is provided, wherein a first standard component and a second standard component are provided on the carrier platform, wherein the first standard component has a first standard surface, and the second standard component has a second standard surface, the second standard surface is parallel to the first standard surface, and the distance between the first standard surface and the second standard surface is the standard width between the first side surface and the second side surface of the standard workpiece; The workpiece is placed between the first standard component and the second standard component, wherein the first standard component is located on one side of the first side surface, and the second standard component is located on one side of the second side surface; Positioning the workpiece so that the workpiece is stationary relative to the carrier platform; Measuring a first perpendicular distance between the first standard surface and the first side surface, wherein the method for measuring the first perpendicular distance between the first standard surface and the first side surface comprises: selecting a first reference point on one side of the first side surface; measuring a first distance H1 between the first reference point and the first standard surface; measuring a second distance h1 between the first reference point and the first side surface; and determining the first perpendicular distance based on the first distance H1 and the second distance h1; Driving the carrying platform to rotate 180°; measuring a second perpendicular distance between the second standard surface and the second side surface; Determining a width between a first side surface and a second side surface of the workpiece based on the standard width, the first vertical distance, and the second vertical distance, wherein the width between the first side surface and the second side surface of the workpiece is equal to the sum of the first vertical distance, the second vertical distance, and the distance between the first standard surface and the second standard surface; The first standard component and the second standard component may be affected by positioning inaccuracies or temperature changes synchronously with the workpiece.

2. The size detection method according to claim 1, wherein: The method for measuring the first distance H1 between the first reference point and the first standard surface includes: A distance measuring sensor is arranged at the first reference point, and the first standard surface has a first vertical point, so that a line between the first reference point and the first vertical point is perpendicular to the first standard surface; The distance between the first reference point and the first vertical point measured by the distance measuring sensor is a first distance H1 between the first reference point and the first standard surface.

3. The size detection method according to claim 2, wherein: The method for measuring the second distance h1 between the first reference point and the first side surface includes: moving the carrying platform in a direction parallel to the first side surface; A second distance h1 between the first reference point and the first side surface is measured by the distance measuring sensor.

4. A size detection device for detecting the width between a first side surface and a second side surface of a workpiece that are opposite and parallel to each other, wherein: The size detection device comprises: A carrying platform, used for carrying the workpiece; A first standard component, provided on the carrying platform and having a first standard surface; a second standard component, disposed on the supporting platform and having a second standard surface, the workpiece being disposed between the first standard component and the second standard component, the first standard surface being parallel to the first side surface, and the second standard surface being parallel to the second side surface; and a detection mechanism, configured to measure a first perpendicular distance between the first standard surface and the first side surface, and a second perpendicular distance between the second standard surface and the second side surface, wherein the detection mechanism measures the first perpendicular distance between the first standard surface and the first side surface, the detection mechanism comprising: selecting a first reference point on one side of the first side surface; measuring a first distance H1 between the first reference point and the first standard surface; measuring a second distance h1 between the first reference point and the first side surface; and determining the first perpendicular distance based on the first distance H1 and the second distance h1; A second driving member, connected to the carrier, for driving the carrier to rotate the workpiece 180°; a positioning mechanism connected to the carrying platform, the positioning mechanism being used to position the workpiece so that the workpiece is stationary relative to the carrying platform; The width between the first side surface and the second side surface of the workpiece is equal to the sum of the first vertical distance, the second vertical distance, and the distance between the first standard surface and the second standard surface. The first standard component and the second standard component will be affected by inaccurate positioning or temperature changes synchronously with the workpiece.

5. The size detection device according to claim 4, wherein: The size detection device also includes: The first driving member is connected to the supporting platform and is used to drive the supporting platform to move the workpiece in a direction parallel to the length direction of the first side surface or the second side surface.

6. The size detection device according to claim 4, wherein: The carrying platform is provided with a plurality of slide grooves; The positioning mechanism includes a plurality of positioning pins, each of which is slidably disposed in the slide groove, and the plurality of positioning pins surround and form a positioning area for positioning the workpiece.

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