Square rod detection device and square rod detection system

Abstract

The utility model discloses a square rod detection device and a square rod detection system.The square rod detection device comprises a base, a mounting support and a measuring assembly, and a supporting table is arranged on the base and used for bearing a square rod; the mounting bracket is arranged on the base and is opposite to the supporting table; the measuring assembly is arranged on the mounting bracket, the measuring assembly comprises at least one pair of first distance measuring pieces and at least one pair of second distance measuring pieces, the at least one pair of second distance measuring pieces is used for measuring the edge distance of the square rod, and the at least one pair of first distance measuring pieces is used for measuring the non-edge distance of the square rod. Therefore, the edge distance sizes of different positions of the square rod can be measured through the first distance measuring piece and the second distance measuring piece, so that the measurement result of the square rod is more accurate, and preparation of subsequent battery pieces and assemblies is facilitated.

Description

Technical Field

[0001] The present application belongs to the field of measurement technology, and specifically relates to a square bar detection device and a square bar detection system. Background Art

[0002] In the process of crystal rod processing, the original crystal rod is first obtained by crystal pulling, and then the square rod can be obtained by square cutting and rolling. In order to accurately obtain the appearance size of the square rod, it is necessary to collect and test the size parameters of the square rod, such as the length of the square rod, the margin between the two opposite sides, etc.

[0003] At present, the main measurement method for square bars is still manual measurement using a vernier caliper or a chamfer ruler, and its measurement accuracy is low. Therefore, a new measuring device is urgently needed. Utility Model Content

[0004] The present application aims to provide a square bar detection device and a square bar detection system, which can solve the problem of low precision in manually measuring the appearance dimensions of square bars.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] In a first aspect, an embodiment of the present application provides a square bar detection device, comprising:

[0007] A base, wherein a support platform is provided on the base for carrying the square rod;

[0008] A mounting bracket, the mounting bracket is arranged on the base and is arranged opposite to the support platform;

[0009] A measuring component, wherein the measuring component is arranged on the mounting bracket, and the measuring component comprises at least one pair of first distance measuring components and at least one pair of second distance measuring components, wherein the at least one pair of the second distance measuring components is used to measure the edge margin of the square rod, and the at least one pair of the first distance measuring components is used to measure the non-edge margin of the square rod.

[0010] In the embodiment of the present application, by installing a measuring component set on the bracket, the measuring component includes at least one pair of first distance measuring components and at least one pair of second distance measuring components. When used for detecting the square rod, the two second distance measuring components in each pair of second distance measuring components are respectively set relative to the edges of the two oppositely arranged sides of the square rod, so that the edge margins of the two sides can be accurately measured. At the same time, the two first distance measuring components in each pair of first distance measuring components are respectively set relative to the parts of the two oppositely arranged sides of the square rod except the edge positions, so that the non-edge margins of the two sides can be accurately measured. In this way, the margin dimensions of different positions of the square rod can be measured by the first distance measuring component and the second distance measuring component, and the measured square rod dimensions are more accurate, which is more conducive to the subsequent preparation of battery cells and components.

[0011] In a second aspect, an embodiment of the present application proposes a square bar detection system, comprising: a clamping mechanism and a square bar detection device as described in the first aspect of the present application, wherein the clamping mechanism is used to move the square bar into or out of the support table.

[0012] In an embodiment of the present application, a clamping mechanism is provided so that the square rod to be measured can be moved into the support table, and the square rod after measurement can be moved out of the support table. At the same time, the third distance measuring member and the fourth distance measuring member provided in the clamping mechanism can simultaneously measure the length and the verticality of the end face of the square rod, which is more accurate and more efficient than the traditional manual measurement structure.

[0013] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0015] Figure 1 is a schematic diagram of a square bar detection device according to an embodiment of the present application;

[0016] Figure 2 is a side view of a square bar detection device according to an embodiment of the present application;

[0017] Figure 3 is a schematic diagram of the matching structure of a mounting bracket and a measuring component according to an embodiment of the present application;

[0018] Figure 4 is a schematic diagram of the distribution structure of the measurement components on the mounting bracket according to an embodiment of the present application;

[0019] Figure 5 is a schematic diagram of the distribution structure and movement direction of the measurement components according to an embodiment of the present application;

[0020] Figure 6 This is one of the schematic diagrams of the matching structure of another mounting bracket and a measuring assembly according to an embodiment of the present application;

[0021] Figure 7 This is another schematic diagram of the matching structure of the mounting bracket and the measuring assembly according to an embodiment of the present application;

[0022] Figure 8 is a schematic diagram of a clamping mechanism according to an embodiment of the present application;

[0023] Fig. 9 is a schematic diagram of a clamping mechanism corresponding to a first clamping component according to an embodiment of the present application;

[0024] Fig.10 is a schematic diagram of a clamping mechanism corresponding to a second clamping assembly according to an embodiment of the present application;

[0025] Fig.11 is a schematic diagram of a square rod according to an embodiment of the present application;

[0026] Fig.12 This is one of the schematic diagrams of the size parameters of the square rod according to the embodiment of the present application;

[0027] Fig.13 This is the second schematic diagram of the size parameters of the square rod according to the embodiment of the present application;

[0028] Fig.14 This is the third schematic diagram of the size parameters of the square rod according to the embodiment of the present application;

[0029] Fig.15 is a schematic diagram of a control module according to an embodiment of the present application;

[0030] Fig.16 Schematic diagram of the image fitting principle of the image fitting module according to an embodiment of the present application.

[0031] Reference numerals:

[0032] 10: base; 11: support platform; 12: moving mechanism; 13: square rod; 131: side surface; 132: arc surface; 133: end surface; M0: margin; M1, M2: middle margin; N1~N4: edge margin; R: diameter; W: arc length projection; α: four-sided verticality; D: end surface verticality; L: length; 20: mounting bracket; 21: first moving module; 22: second moving module; 23: third moving module; 30: measuring assembly; 31: first distance measuring component; 32: second distance measuring component; 33: arc measuring component; 34: fifth distance measuring component distance measuring member; 35: control module; 351: image fitting module; 352: data processing module; 40: clamping mechanism; 41: transfer rack; 42: first clamping assembly; 421: first clamping arm; 422: first clamping member; 423: rotation driving member; 424: first driving member; 43: second clamping assembly; 431: second clamping arm; 432: second clamping member; 433: second driving member; 44: third distance measuring member; 45: fourth distance measuring member; X: first direction; Y: second direction; Z: third direction; M: fourth direction; N: fifth direction. DETAILED DESCRIPTION

[0033] The embodiments of the present application will be 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 construed as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0034] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0035] 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", "axial", "radial", "circumferential" 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0036] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] The square bar detection device and the square bar detection system provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0038] At present, in order to obtain the external dimensions of the square rod 13, inspection personnel usually use measuring tools such as vernier calipers and chamfer rulers to measure the external dimensions such as the length and margin of the square rod 13. Fig.11As shown, the square rod 13 generally has four side faces 131 and two end faces 133. The margin refers to the vertical distance between two opposite side faces 131. Fig.12 As shown, usually, the side 131 of the square bar 13 is considered to be a planar structure, and the inspection personnel measure the margin M0 based on the edge positions relative to the two side surfaces 131. Fig.13 As shown, the inventors found that in actual applications, the side 131 of the square rod 13 is not flat, and the edge margin (such as Fig.13 and the middle margin measured based on the center position of the two relative sides 131 (such as Fig.13 There is a size difference between the two margins, which will directly affect the preparation of subsequent silicon wafers and modules. Therefore, a new measuring device is urgently needed to accurately measure the square rod.

[0039] like Figures 1 to 3 As shown, according to some embodiments of the present application, the square rod detection device includes: a base 10, a mounting bracket 20 and a measuring assembly 30, the base 10 is provided with a support platform 11 for carrying the square rod 13; the mounting bracket 20 is arranged on the base 10; the measuring assembly 30 is arranged on the mounting bracket 20, the measuring assembly 30 includes at least one pair of first distance measuring components 31 and at least one pair of second distance measuring components 32, the at least one pair of second distance measuring components 32 is used to measure the edge margin of the square rod 13, and the at least one pair of first distance measuring components 31 is used to measure the non-edge margin of the square rod 13.

[0040] In the embodiment of the present application, by setting at least one pair of first distance measuring members 31 and at least one pair of second distance measuring members 32 on the mounting bracket 20, when used for detecting the square rod 13, the two second distance measuring members 32 in each pair of second distance measuring members 32 are respectively arranged opposite to the edges of the two oppositely arranged side surfaces 131 of the square rod 13, so that the edge margins of the two side surfaces 131 can be accurately measured. At the same time, the two first distance measuring members 31 in each pair of first distance measuring members 31 are respectively arranged opposite to the parts other than the edge positions of the two oppositely arranged side surfaces 131 of the square rod 13, so as to accurately measure the non-edge margins of the two side surfaces 131. In this way, the margin dimensions of different positions of the square rod 13 can be measured by the first distance measuring member 31 and the second distance measuring member 32, and the measured square rod dimensions are more accurate, which is more conducive to the subsequent preparation of battery cells and components.

[0041] Furthermore, during measurement, each pair of first distance measuring members 31 can be aligned with two oppositely disposed side surfaces 131 (such as Fig.11 ) is set at the center to measure the middle margin of the square rod 13 (as shown Fig.13Each pair of second distance measuring members 32 are arranged relative to the edges of two oppositely disposed side surfaces 131 of the square rod 13 to measure the edge margin of the square rod 13 (eg Fig.13 N1~N4 shown).

[0042] It should be noted that the edge margin refers to the distance between the outermost edge positions of two opposite side surfaces 131 of the square rod 13 (e.g. Fig.13 The non-edge margin refers to the distance between the square rod 13 and the two side surfaces 131 except the outermost edge position; the middle margin refers to the distance between the center positions of the square rod 13 and the two side surfaces 131 (such as Fig.13 M1 and M2 shown in ).

[0043] In a specific application, along the axial direction perpendicular to the square rod 13, each side surface 131 has a central portion 131a and edge portions 131b located on both sides of the central portion 131a, and the edge portion 131b is close to another side surface 131, so that the first distance measuring member 31 corresponds to the central portion 131a of the side surface 131, and the middle margin can be measured based on the central portion 131a of the side surface 131. Accordingly, the second distance measuring member 32 corresponds to the edge portion 131b of the side surface 131, and the edge margin can be measured based on the edge portion 131b of the side surface 131.

[0044] In some embodiments, the distance measuring directions of the two first distance measuring members 31 in each pair of first distance measuring members 31 may be coaxial and opposite, and the distance measuring direction of each first distance measuring member 31 may be perpendicular to the corresponding side surface 131 .

[0045] Furthermore, the total distance between the two first distance measuring members 31 in each pair of first distance measuring members 31 on the mounting bracket 20 is set to a certain value, and the actual distance from the first distance measuring member 31 to the corresponding side surface 131 can be measured by each first distance measuring member 31. The middle margin distance between the two corresponding side surfaces 131 is obtained by subtracting the actual distances measured by the two first distance measuring members 31 from the total distance, thereby achieving accurate measurement of the middle margin distance.

[0046] The first distance measuring element 31 may be a contact distance measuring element, such as a contact displacement sensor, etc.; or a non-contact distance measuring element, such as a laser sensor, an infrared sensor, etc. Of course, the first distance measuring element 31 may also be other types of dimension measuring elements or instruments, and may be flexibly configured according to actual needs, which is not limited in the present embodiment of the application.

[0047] In some embodiments, a through hole is provided in the mounting bracket 20 for the support platform 11 and the square rod 13 to pass through. The through hole can be set as a round hole, a square hole, a diamond hole, etc. By providing the through hole in the mounting bracket 20, the relative position of the support platform 11 and the mounting bracket 20 can be flexibly adjusted, so that the square rod 13 is located within the measuring area of ​​the measuring component 30, and by changing the relative position of the mounting bracket 20 and the square rod 13, the size of the square rod 13 can be detected at different positions.

[0048] In some embodiments, a V-shaped groove is provided in the support platform 11, so that the angle of the V-shaped groove is a right angle, and the V-shaped groove can support two adjacent side surfaces 131 of the square rod 13, so that when the square rod 13 is placed in the V-shaped groove, a diagonal line of the cross section of the square rod 13 is placed vertically. Accordingly, the through hole can be set as a diamond hole so that the diamond hole is compatible with the structure of the V-shaped groove. By providing the V-shaped groove, the support accuracy is better when the square rod 13 is placed, and there is no need for secondary correction of the position. In addition, it is also convenient to install the layout of the measurement component 30 on the bracket 20.

[0049] The V-shaped groove has a first supporting surface and a second supporting surface, the extending direction of the V-shaped groove is set to a first direction X, the second direction Y is parallel to the first supporting surface and perpendicular to the first direction X, and the third direction Z is parallel to the second supporting surface and perpendicular to the first direction X; the plane where the second direction Y and the third direction Z are located is provided with a fourth direction M and a fifth direction N, and the fourth direction M divides the angle formed by the first supporting surface and the second supporting surface, and the fifth direction N is perpendicular to the fourth direction M. It can be understood that the angle formed by the first supporting surface and the second supporting surface refers to the angle of the V-shaped groove formed by the first supporting surface and the second supporting surface.

[0050] In some embodiments, the measuring assembly 30 includes at least one pair of first distance measuring members 31 and at least two pairs of second distance measuring members 32, and the at least two pairs of second distance measuring members 32 are disposed on both sides of the at least one pair of first distance measuring members 31. During measurement, the two pairs of second distance measuring members 32 are made to correspond to the edge positions at both ends of the side surface to measure the margins of the two edges. At the same time, the middle position of the corresponding side surface 131 can be located according to the two pairs of second distance measuring members 32, and the first distance measuring member 31 is made to correspond to the middle position of the side surface 131, so that the middle margin of the side surface 131 can be measured by the first distance measuring member 31. In this way, the center position of the side surface 131 of the square rod can be better located by the two second distance measuring members 32, thereby making the measurement position of the first distance measuring member 31 more precise and the measurement result more accurate.

[0051] The second distance measuring element 32 may be a contact distance measuring element, such as a contact displacement sensor, etc.; or a non-contact distance measuring element, such as a laser sensor, an infrared sensor, etc. In addition, the second distance measuring element 32 and the first distance measuring element 31 may be the same or different, which is not limited in the embodiment of the present application.

[0052] Optionally, a first movable module 21 is provided on the mounting bracket 20 , and the first distance measuring member 31 is mounted on the first movable module 21 . The first movable module 21 is used to drive the first distance measuring member 31 to move in the second direction Y and / or the third direction Z.

[0053] It can be understood that when measuring the square rod 13, the first movable module 21 can drive the first distance measuring component 31 to move in a direction perpendicular to the axial direction of the square rod 13 and parallel to the corresponding side surface 131, and / or, to move in a direction perpendicular to the axial direction of the square rod 13 and perpendicular to the corresponding side surface 131.

[0054] In the embodiment of the present application, by setting the first movable module 21 at the position corresponding to each first distance measuring member 31, the first movable module 21 can be used to drive the first distance measuring member 31 to move relative to the square rod 13 to adjust the relative position of the first distance measuring member 31, and then the non-edge margins of the square rods 13 of different sizes can be measured, which can improve the applicability of the square rod detection device.

[0055] In a specific application, a corresponding first moving module 21 may be set for each first distance measuring member 31, and the adjustment directions of the first moving modules 21 corresponding to different first distance measuring members 31 may be the same or different. The first moving module 21 may be a unidirectional moving module or a bidirectional moving module, and may be flexibly set according to the position and use requirements of each first distance measuring member 31, which is not limited in the embodiment of the present application.

[0056] For example, Figure 1 and Figure 2 As shown, during measurement, the square rod 13 is placed in the V-shaped groove of the support platform 11, and two pairs of first distance measuring members 31 are installed on the mounting bracket 20, which correspond to the side surfaces 131 of the square rod 13 respectively. Figure 4 and Figure 5 A1 to A4 shown in the figure, wherein A1 and A3 form a pair of first distance measuring elements 31, and A2 and A4 form a pair of first distance measuring elements 31, Figure 5 The arrow in denoted the moving direction of the corresponding first distance measuring member 31 .

[0057] Furthermore, corresponding first moving modules 21 can be respectively arranged according to the arrangement positions of different first distance measuring members 31 to realize the direction adjustment requirements of the corresponding first distance measuring members 31. For example, A1 and A4 can realize movement in a direction perpendicular to the axial direction of the square rod 13 and parallel to the corresponding side surface 131, and in a direction perpendicular to the axial direction of the square rod 13 and perpendicular to the corresponding side surface 131; A2 and A3 can realize movement in a direction perpendicular to the axial direction of the square rod 13 and parallel to the corresponding side surface 131. Specifically, as Figure 4 and Figure 5 As shown, A1 and A4 can both move along the second direction Y and the third direction Z, A3 can move along the second direction Y, and A2 can move along the third direction Z. In this way, it is convenient to flexibly adjust the position of the first distance measuring member 31 according to the size of the square rod 13 actually detected. Of course, the direction adjustment of each first distance measuring member 31 can be flexibly set according to the actual situation, and this application does not limit it.

[0058] Alternatively, if Figures 1 to 3 As shown, the mounting bracket 20 is provided with a second movable module 22 , and the second distance measuring member 32 is mounted on the corresponding second movable module 22 , and the second movable module 22 is used to drive the second distance measuring member 32 to move along the second direction Y and / or the third direction Y.

[0059] It can be understood that when measuring the square rod 13, the second movable module 22 can drive the second distance measuring component 32 to move in a direction perpendicular to the axial direction of the square rod 13 and parallel to the corresponding side surface 131, and / or, to move in a direction perpendicular to the axial direction of the square rod 13 and perpendicular to the corresponding side surface 131.

[0060] In this way, the relative position of the corresponding second distance measuring member 32 can be adjusted by the second movable module 22 to meet the measurement requirements of the edge margins of square bars 13 of different sizes, thereby improving the applicability of the square bar detection device.

[0061] It should be noted that the second mobile module 22 can be a unidirectional mobile module or a bidirectional mobile module, and the structure of the second mobile module 22 corresponding to each second ranging component 32 can be flexibly set according to actual conditions, which is not limited in the embodiment of the present application.

[0062] For example, Figure 1 and Figure 2 As shown, during measurement, the square rod 13 is placed in the V-shaped groove of the support platform 11, and four pairs of second distance measuring members 32 are installed on the mounting bracket 20, corresponding to the side surfaces 131 of the square rod 13, and two second distance measuring members 32 are corresponding to each side surface 131. Figure 4 and Figure 5 B1 to B8 shown in FIG. Figure 5The arrow in denoted the corresponding moving direction of the second distance measuring member 32 .

[0063] Furthermore, corresponding second moving modules 22 can be respectively arranged according to the arrangement positions of different second distance measuring members 32 to realize the direction adjustment requirements of the corresponding second distance measuring members 32. For example, B1 and B8 can realize movement in a direction perpendicular to the axial direction of the square rod 13 and parallel to the corresponding side surface 131, and in a direction perpendicular to the axial direction of the square rod 13 and perpendicular to the corresponding side surface 131; B2 and B7 can realize movement in a direction perpendicular to the axial direction of the square rod 13 and perpendicular to the corresponding side surface 131; B3 and B6 can realize movement in a direction perpendicular to the axial direction of the square rod 13 and parallel to the corresponding side surface 131; B4 and B5 do not need to be moved.

[0064] Specifically, Figure 4 and Figure 5 As shown, by setting B1 and B8 to move along the second direction Y and the third direction Z, B2 and B3 to move along the third direction Z, and B6 and B7 to move along the second direction Y, when the size of the measured square bar 13 changes, the position of each second distance measuring member 32 can be flexibly adjusted to meet the actual measurement requirements. Of course, the direction adjustment of each second distance measuring member 32 can be flexibly set according to the actual situation, and this application does not limit it.

[0065] In addition, the first movable module 21 and the second movable module 22 corresponding to the same side 131 can also be integrated together, that is, the position adjustment of the first ranging component 31 and the second ranging component 32 can be simultaneously realized through the same movable module. The specific structure can be flexibly set according to actual conditions and will not be repeated here.

[0066] like Fig.11 As shown, in some specific embodiments, an arc transition surface, i.e., an arc surface 132, is provided between two adjacent side surfaces 131 of the square rod 13. The arc surface of the square rod in the CZ single crystal is obtained by cutting and rolling the round rod, so the morphology of the arc surface is mainly determined by the outer contour morphology of the crystal rod. During the growth of the crystal rod, due to the change in temperature gradient, the diameter of the outer contour of the crystal rod will have deviations, and the outer contour of the crystal rod will still have many protrusions and depressions after magnification. After the crystal rod is cut into a square rod, the appearance of the arc surface is similar to the outer contour of the crystal rod, and there will be many protrusions and depressions after magnification. If the measurement is directly performed manually or with a simple sensor, the error of the measured value is large. If this value is used as a reference, it will affect the subsequent preparation of solar cells and components. Therefore, the measurement accuracy of the arc surface needs to be further improved.

[0067] Alternatively, if Figures 1 to 3 As shown, the measuring assembly 30 further includes at least one pair of arc measuring pieces 33 , and the arc measuring pieces 33 are used to measure the arc surface 132 of the square rod 13 .

[0068] In a specific application, when measuring the square rod 13, each pair of arc measuring members 33 can be aligned with two oppositely disposed arc surfaces 132 (such as Fig.11 The arc measuring member 33 is arranged to move relative to the mounting bracket 20 to measure the size parameters of the arc surface 132. The size parameters of the arc surface 132 include at least one of the arc length projection W, the diameter R, and the four-sided perpendicularity α.

[0069] In the embodiment of the present application, at least one pair of arc measuring pieces 33 is arranged on the mounting bracket 20, and during measurement, two arc measuring pieces 33 in each pair of arc measuring pieces 33 are arranged outside two oppositely arranged arc surfaces 132 of the square rod 13, and then, the arc surface 132 of the square rod 13 can be scanned and measured by moving the arc measuring piece 33 to measure the size parameters of the arc surface 132. Compared with manual measurement, the measurement accuracy and efficiency can be improved.

[0070] In some embodiments, the arc measuring member 33 includes at least one of a line laser profiler, a laser sensor, and an infrared sensor. Preferably, the arc measuring member 33 includes a line laser profiler. By setting the arc measuring member 33, the arc surface 132 of the square rod 13 can be scanned and measured to obtain continuous measurement data of the square rod surface, and the size parameters of the arc surface 132 of the square rod can be obtained after processing the measurement data. Compared with the one-dimensional displacement measurement mode of the displacement sensor, the two-dimensional contour shape measured by the line laser profiler makes the arc measurement of the appearance size of the square rod more accurate.

[0071] In some specific embodiments, Fig.15 As shown, the arc measuring part 33 includes a line laser profiler and a control module 35, and the control module 35 includes an image fitting module 351 and a data processing module 352; the line laser profiler is used to collect coordinate data of the outer surface of the square rod 13, and the image fitting module 351 is electrically connected to the line laser profiler, and is used to fit the contour graph of the cross section of the square rod 13 based on the coordinate data collected by the line laser profiler; the data processing module 352 is electrically connected to the image fitting module 351, and is used to determine the size parameters of the arc surface 132 of the square rod 13 based on the contour graph, thereby making the arc measurement of the appearance size of the square rod more accurate.

[0072] In some embodiments, the edge position of the square rod 13 can be scanned by moving the line laser profiler, and the coordinate data obtained by the scan is sent to the image fitting module 351. The image fitting module 351 performs a graphic fitting based on the coordinate data obtained by the line laser profiler to fit the contour graphic of the cross section of the square rod 13 (such as Fig.16As shown). Then, the data processing module 352 further calculates the size parameters of the arc surface 132 of the square rod 13 based on the fitted contour graph, such as arc length projection W, arc diameter R, four-sided perpendicularity α, etc., thereby obtaining the appearance size and shape of the square rod more comprehensively and accurately.

[0073] It is understandable that the line laser profiler used in the embodiment of the present application can achieve three-dimensional scanning of the outer surface of the square rod 13, and the collected coordinate data is more accurate and the measurement accuracy is higher. In a specific embodiment, the laser profiler is used in conjunction with the control module to improve the detection accuracy of the square rod arc from 0.013mm to 0.002mm. In addition, since the laser emitted by the line laser profiler is a line, the distance from a line to the sensor can be measured at one time, which greatly improves the scanning efficiency of the surface of the square rod 13.

[0074] In addition, if Figure 4 and Figure 5 As shown, at least one pair of fifth distance measuring members 35 may be provided, and two fifth distance measuring members 35 in each pair of fifth distance measuring members 35 are provided outside two oppositely arranged arc surfaces 132 of the square rod 13, and each pair of fifth distance measuring members 35 cooperate to measure parameters such as the diameter of the arc surface 132. The fifth distance measuring member 35 may be a contact distance measuring element, a laser sensor, an infrared sensor, etc.

[0075] In the embodiment of the present application, a fifth distance measuring member 35 may be provided at a position corresponding to the arc surface 132 of the square rod 13 to achieve accurate measurement of the diameter and other dimensions of the arc surface 132. It is understandable that the parameters measured by the arc measuring member 33 and the fifth distance measuring member 35 may overlap, and in practical applications, the arc measuring member 33 and the fifth distance measuring member 35 may be flexibly provided according to actual needs, and the embodiment of the present application does not limit this.

[0076] For example, a line laser profiler can be used to simultaneously measure the arc length projection W, diameter R, four-sided perpendicularity α and other parameters. At the same time, a contact sensor can be set to directly measure the arc diameter R, and then the diameters R obtained from the two measurements can be compared with each other to verify the accuracy of the detection result.

[0077] Alternatively, if Figure 3 and Figure 4 As shown, a third movable module 23 is provided on the mounting bracket 20, and the arc measuring component 33 is installed on the third movable module 23. The third movable module 23 is used to drive at least part of the arc measuring component 33 to move along a preset direction, and the preset direction and the fifth direction N form an angle of 30°-60°.

[0078] It is understandable that when measuring the square rod 13, the arc measuring piece 33 is made to correspond to the arc surface of the square rod, and the arc measuring piece 33 is installed on the third moving module 23. At least part of the third moving module 23 can drive the corresponding arc measuring piece 33 to move along a preset direction, and the preset direction forms a preset angle of 30°-60° with the diagonal line of the cross section of the square rod 13. Preferably, the preset angle is 45°.

[0079] In the embodiment of the present application, the third moving module 23 is arranged on the mounting bracket 20, and the arc measuring member 33 can be driven to move by the third moving module 23, so that the arc measuring member 33 continuously collects the measurement data of the arc surface 132. At the same time, at least part of the third moving module 23 can drive the arc measuring member 33 to move along the preset direction, so that the moving stroke of the arc measuring member 33 can be shortened, and the position of the arc measuring member 33 can be adjusted more quickly, thereby improving the detection efficiency.

[0080] It can be understood that by setting the preset direction and the fifth direction N to have an angle of 30°-60°, for example, the angle can be set to 30°, 40°, 45°, 50°, 55°, 60°, etc. In this way, by moving the arc measuring piece 33, the displacement of the arc measuring piece 33 in the direction parallel to the diagonal of the cross section of the square rod and in the direction perpendicular to the diagonal can be adjusted at the same time, thereby improving the detection efficiency. Preferably, the angle is set to 45°, and when moving the arc measuring piece 33, the displacement of the arc measuring piece 33 in the direction parallel to the diagonal and in the direction perpendicular to the diagonal can be moved in the same proportion, thereby achieving precise adjustment of the arc measuring piece 33, thereby improving the detection accuracy.

[0081] In addition, the fifth distance measuring member 35 may also be installed on the corresponding third moving module 23 , and then the arc measuring member 33 and the fifth distance measuring member 35 may be driven to move simultaneously by the third moving module 23 .

[0082] For example, Figure 5 As shown, during measurement, the square rod 13 is placed in the V-shaped groove of the support platform 11, and two pairs of arc measuring pieces 33 and two pairs of fifth distance measuring pieces 35 are installed on the mounting bracket 20, which correspond to the arc surface 132 of the square rod 13 respectively, as shown in FIG. Figure 4 and Figure 5 C1-C4 shown in the figure are arc measuring parts 33, D1-D4 are fifth distance measuring parts 35, Figure 5 The arrows in the figure indicate the moving directions of the corresponding arc measuring member 33 and the fifth distance measuring member 35.

[0083] Furthermore, by respectively setting the third moving module 23, the direction adjustment requirements of the corresponding arc measuring member 33 and the fifth distance measuring member 35 can be achieved. Figure 5As shown, C1 and D1 can move along the fourth direction M and the fifth direction N, and the moving directions of C2 and D2, C4 and D4 form the preset angle with the fifth direction N. That is, C1 and D1 can move in the horizontal direction and the vertical direction, C2 and D2, C4 and D4 can move at an angle of 45°, and C3 and D4 can be fixed. In this way, it is convenient to flexibly adjust the positions of the arc measuring piece 33 and the fifth distance measuring piece 35 according to the size of the square rod 13 actually detected. Of course, the direction adjustment of each arc measuring piece 33 and the fifth distance measuring piece 35 can be flexibly set according to the actual situation, and this application does not limit it.

[0084] In some embodiments, the mounting bracket 20 may be a plate-shaped structural member, such as Figure 3 and Figure 4 As shown, the first distance measuring member 31, the second distance measuring member 32, the arc measuring member 33 and the fifth distance measuring member 35 can all be arranged on the same side of the mounting bracket 20; Figure 6 and Figure 7 As shown, the first distance measuring member 31 and the second distance measuring member 32 may be arranged on one side of the mounting bracket 20, and the arc measuring member 33 and the fifth distance measuring member 35 may be arranged on the other side of the mounting bracket 20. The specific layout structure may be flexibly arranged and is not limited here.

[0085] Alternatively, if Figure 1 As shown, the square rod detection device further includes a moving mechanism 12, which is disposed on the base 10, and the mounting bracket 20 is connected to the moving mechanism 12, and the moving mechanism 12 is used to drive the mounting bracket 20 to move along the first direction X.

[0086] In the embodiment of the present application, a moving mechanism 12 is provided on the base 10, and the moving mechanism 12 can drive the mounting bracket 20 to move along the first direction X, thereby facilitating the use of the measuring component 30 on the mounting bracket 20 to measure the dimensions of different positions on the surface of the square rod 13.

[0087] In some embodiments, the moving mechanism 12 may include a driving member and a transmission member, the transmission member is movably connected to the base 10, the mounting bracket 20 is connected to the transmission member, the driving member is arranged on the base 10 and connected to the transmission member, the driving member can drive the transmission member to move, and then the transmission member drives the mounting bracket 20 to move relative to the base 10.

[0088] The driving member may be an electric driving member, a pneumatic driving member or a hydraulic driving member, and the transmission member may be a screw pair transmission mechanism, a ball screw transmission mechanism, a gear rack transmission mechanism, etc. The specific structure of the moving mechanism 12 can be flexibly set according to actual conditions, and the embodiment of the present application does not limit this.

[0089] Alternatively, if Figure 1 and Figure 8 As shown, the embodiment of the present application further provides a square bar 13 detection system, including: a clamping mechanism 40 and the square bar detection device in the above embodiment, the clamping mechanism 40 is used to move the square bar 13 into or out of the support platform 11.

[0090] In the embodiment of the present application, the square rod 13 to be measured can be moved into the support platform 11 by setting the clamping mechanism 40, and the square rod 13 after the measurement can be moved out of the support platform 11. Furthermore, the square rod 13 on the support platform 11 can be inspected for appearance dimensions by the measuring assembly 30 provided on the mounting bracket 20, and the measuring assembly 30 is provided to include at least one pair of first distance measuring pieces 31 and at least one pair of second distance measuring pieces 32. The edge margin of the square rod 13 can be measured by the second distance measuring piece 32, and the non-edge margin of the square rod 13 can be measured by the first distance measuring piece 31. In this way, the margin dimensions of different positions of the square rod 13 can be accurately measured by the cooperation of the first distance measuring piece 31 and the second distance measuring piece 32, which is more accurate than the traditional manual measurement and has higher measurement stability.

[0091] Alternatively, if Figure 8 As shown, the clamping mechanism 40 includes a transfer frame 41, a first clamping assembly 42 and a second clamping assembly 43. The first clamping assembly 42 and the second clamping assembly 43 are respectively slidably connected to the transfer frame 41, and the first clamping assembly 42 and the second clamping assembly 43 cooperate to clamp the square rod 13; the first clamping assembly 42 is provided with a third distance measuring member 44, and the second clamping assembly 43 is provided with a fourth distance measuring member 45. The third distance measuring member 44 and the fourth distance measuring member 45 are located correspondingly, and are used to measure the length L and the end surface verticality D (such as Fig.14 shown).

[0092] In the embodiment of the present application, the first clamping assembly 42 and the second clamping assembly 43 are respectively slidably connected to the transfer frame 41, and the first clamping assembly 42 and the second clamping assembly 43 can clamp the two ends of the square rod 13 through relative movement to transfer the square rod 13 to the support platform 11. At the same time, the first clamping assembly 42 is provided with a third distance measuring member 44, and the second clamping assembly 43 is provided with a fourth distance measuring member 45. After the square rod 13 is clamped and transferred to the support platform 11, the length L and the end surface verticality D of the square rod 13 can be measured by the third distance measuring member 44 and the fourth distance measuring member 45.

[0093] Alternatively, if Fig. 9 and Fig.10As shown, at least three third distance measuring members 44 and at least three fourth distance measuring members 45 are provided, at least three third distance measuring members 44 are provided on the first clamping assembly 42, at least three fourth distance measuring members 45 are provided on the second clamping assembly 43, the extension direction of the support platform 11 is the first direction X, the projections of at least three third distance measuring members 44 on a plane perpendicular to the first direction X are non-collinear, and the projections of at least three fourth distance measuring members 45 on a plane perpendicular to the first direction X are non-collinear.

[0094] It can be understood that the number of the third distance measuring members 44 and the fourth distance measuring members 45 is the same, and along the first direction X, each third distance measuring member 44 corresponds to a fourth distance measuring member 45, and a length value can be measured by the cooperation of the third distance measuring member 44 and the fourth distance measuring member 45. Furthermore, a plane can be formed based on three points, and by setting at least three third distance measuring members 44 and at least three fourth distance measuring members 45 to cooperate, the length between the two end faces of the square rod 13 at different positions can be measured. In this way, the length value and end face verticality and other dimensional parameters of the square rod 13 can be determined based on the measurement results, and the measurement results are more accurate.

[0095] In some embodiments, the projections of three third distance measuring members 44 of the at least three third distance measuring members 44 on the plane perpendicular to the first direction X form an isosceles right triangle; the projections of three fourth distance measuring members 45 of the at least three fourth distance measuring members 45 on the plane perpendicular to the first direction X form an isosceles right triangle. Furthermore, by cooperating with multiple third distance measuring members 44 and multiple fourth distance measuring members 45, dimensional parameters such as the length and end face verticality of the square bar can be detected more accurately.

[0096] In some embodiments, at least four third distance measuring members 44 and at least four fourth distance measuring members 45 are provided, and the projections of four third distance measuring members 44 out of the at least four third distance measuring members 44 on a plane perpendicular to the first direction X form a square; the projections of four fourth distance measuring members 45 out of the at least four fourth distance measuring members 45 on a plane perpendicular to the first direction X form a square. Furthermore, by cooperating with multiple third distance measuring members 44 and multiple fourth distance measuring members 45, the dimensional parameters such as the length and end face verticality of the square bar can be detected more accurately.

[0097] It should be noted that the third ranging component 44 and the fourth ranging component 45 can be laser sensors. The projection of the third ranging component 44 on the plane perpendicular to the first direction X can be understood as the point projection of the laser emission source in the laser sensor on the plane perpendicular to the first direction X, and the same applies to the fourth ranging component 45.

[0098] In some embodiments, during measurement, at least three third distance measuring members 44 can be made to correspond to at least three of the four corners of one end face 133 of the square rod 13; and at least three fourth distance measuring members 45 can be made to correspond to at least three of the four corners of the other end face 133 of the square rod 13, and each third distance measuring member 44 corresponds to one fourth distance measuring member 45 to measure the length L and the end face verticality D of the square rod 13.

[0099] Specifically, when the first clamping assembly 42 and the second clamping assembly 43 are clamped on the two end faces of the square rod 13 and do not move, the third distance measuring member 44 and the fourth distance measuring member 45 can measure the distances between at least three groups of first end faces corresponding to the third distance measuring members 44 and the distances between at least three groups of second end faces corresponding to the fourth distance measuring members 45; thereby, the lengths of at least three groups of square rods can be calculated, and the sizes of the four side faces of the square rod can be determined based on at least three length values.

[0100] Furthermore, the verticality of the end face of the square rod 13 can also be calculated. Taking the first end face corresponding to the third distance measuring member 44 as an example, the distance between the third distance measuring member 44 and the first end face can be measured by a third distance measuring member 44. The third distance measuring member 44 is used as a known point. According to the coordinate value of the third distance measuring member 44, the coordinate value of the detection point on the first end face can be determined. Similarly, the coordinate values ​​of at least three detection points on the first end face can be determined by at least three third distance measuring members 44, and then based on the obtained coordinate values ​​of at least three detection points, the inclination of the first end face relative to the vertical reference plane, that is, the verticality D of the end face of the first end face can be calculated and analyzed. Similarly, the verticality of the end face of the second end face of the square rod 13 can be measured by using at least three fourth distance measuring members 45, which will not be repeated here.

[0101] In some embodiments, the third distance measuring component 44 and the fourth distance measuring component 45 can be respectively selected from laser distance measuring sensors, infrared distance measuring sensors, contact displacement sensors, etc., which can be flexibly selected and are not limited here.

[0102] In some embodiments, Figure 8 As shown, the first clamping assembly 42 includes a first clamping arm 421, a first clamping member 422 and a rotating drive member 423, the first clamping arm 421 is slidably connected to the transfer rack 41, and the first clamping member 422 is rotatably connected to the first clamping arm 421; the second clamping assembly 43 includes a second clamping arm 431 and a second clamping member 432, the second clamping arm 431 is slidably connected to the transfer rack 41, and the second clamping member 432 is rotatably connected to the second clamping arm 431; the first clamping member 422 cooperates with the second clamping member 432 to clamp at both ends of the square rod 13, and the rotating drive member 423 is used to drive the first clamping member 422 to rotate relative to the first clamping arm 421.

[0103] In a specific application, the first clamping member 422 can be driven to move relative to the transfer rack 41 by the first clamping arm 421, and the second clamping member 432 can be driven to move relative to the transfer rack 41 by the second clamping arm 431, and the first clamping member 422 and the second clamping member 432 can be used to clamp the two ends of the square rod 13. Furthermore, the first clamping member 422 can be driven to rotate relative to the first clamping arm 421 by the rotating driving member 423, so as to drive the square rod 13 and the second clamping member 432 to rotate synchronously, so as to adjust the posture of the square rod 13, so as to adjust the position of the square rod 13 placed in the support platform 11.

[0104] In some embodiments, the clamping mechanism 40 further includes a first driving member 424 and a second driving member 433. The first driving member 424 is disposed on the transfer frame 41 and connected to the first clamping arm 421, and is used to drive the first clamping arm 421 to move relative to the transfer frame 41 to adjust the position of the first clamping member 422. The second driving member 433 is disposed on the transfer frame 41 and connected to the second clamping arm 431, and is used to drive the second clamping arm 431 to move relative to the transfer frame 41 to adjust the position of the second clamping member 432. In this way, it is convenient to flexibly adjust the size of the clamping space between the first clamping member 422 and the second clamping member 432 to achieve the clamping operation of the opponent rod 13.

[0105] In addition, a slide rail may be provided on the transfer rack 41 , and the first clamp arm 421 and the second clamp arm 431 are slidably connected to the slide rail respectively. The first clamp arm 421 and the second clamp arm 431 may slide along the slide rail respectively to adjust the relative positions of the first clamp member 422 and the second clamp member 432 .

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0107] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A square bar detection device, characterized in that: include: A base, wherein a support platform is provided on the base for carrying the square rod; A mounting bracket, the mounting bracket is arranged on the base and is arranged opposite to the support platform; A measuring component, wherein the measuring component is arranged on the mounting bracket, and the measuring component comprises at least one pair of first distance measuring components and at least one pair of second distance measuring components, wherein the at least one pair of the second distance measuring components is used to measure the edge margin of the square rod, and the at least one pair of the first distance measuring components is used to measure the non-edge margin of the square rod.

2. The square bar detection device according to claim 1, characterized in that: The measuring assembly includes at least one pair of the first distance measuring members and at least two pairs of the second distance measuring members, and the second distance measuring members are arranged on both sides of each of the first distance measuring members.

3. The square bar detection device according to claim 1 or 2, characterized in that: The mounting bracket is provided with a first movable module and / or a second movable module; the support platform is provided with a V-shaped groove, the V-shaped groove has a first supporting surface and a second supporting surface, the extending direction of the V-shaped groove is set to a first direction, the second direction is parallel to the first supporting surface and perpendicular to the first direction, and the third direction is parallel to the second supporting surface and perpendicular to the first direction; The first ranging component is installed on the first moving module, and the first moving module is used to drive the first ranging component to move along the second direction and / or the third direction; the second ranging component is installed on the second moving module, and the second moving module is used to drive the second ranging component to move along the second direction and / or the third direction.

4. The square bar detection device according to claim 3, characterized in that: The measuring assembly further comprises at least one pair of arc measuring pieces, and the arc measuring pieces are used to measure the arc surface of the square rod.

5. The square bar detection device according to claim 4, characterized in that: A fourth direction and a fifth direction are arranged in the plane where the second direction and the third direction are located, the fourth direction divides the angle formed by the first supporting surface and the second supporting surface, and the fifth direction is perpendicular to the fourth direction; a third movable module is arranged on the mounting bracket, and the arc measuring piece is mounted on the third movable module, and at least part of the third movable module is used to drive the corresponding arc measuring piece to move along a preset direction, and the preset direction forms an angle of 30°-60° with the fifth direction.

6. The square bar detection device according to claim 4, characterized in that: The arc measuring component includes at least one of a line laser profiler, a laser sensor, and an infrared sensor.

7. The square bar detection device according to claim 6, characterized in that: The arc measuring device includes a line laser profiler and a control module, and the control module includes an image fitting module and a data processing module; The line laser profiler is used to collect coordinate data of the outer surface of the square rod; the image fitting module is electrically connected to the line laser profiler and is used to fit the profile of the cross section of the square rod based on the coordinate data; The data processing module is electrically connected to the image fitting module and is used to determine the size parameters of the square rod based on the contour graph.

8. The square bar detection device according to claim 1, characterized in that: The square bar detection device further comprises a moving mechanism, wherein the moving mechanism is arranged on the base, the mounting bracket is connected to the moving mechanism, and the moving mechanism is used to drive the mounting bracket to move relative to the support platform.

9. A square bar detection system, characterized in that: include: A clamping mechanism and a square bar detection device as claimed in any one of claims 1 to 8, wherein the clamping mechanism is used to move the square bar into or out of the support platform.

10. The square bar detection system according to claim 9, characterized in that: The clamping mechanism comprises a transfer frame, a first clamping assembly and a second clamping assembly, wherein the first clamping assembly and the second clamping assembly are respectively slidably connected to the transfer frame, and the first clamping assembly and the second clamping assembly cooperate to clamp the square rod; The first clamping assembly is provided with a third distance measuring member, and the second clamping assembly is provided with a fourth distance measuring member. The third distance measuring member corresponds to the fourth distance measuring member in position and is used to measure the length and end face verticality of the square rod.

11. The square bar detection system according to claim 10, characterized in that: There are at least three third distance measuring members and at least three fourth distance measuring members, at least three of which are arranged on the first clamping assembly; at least three of which are arranged on the second clamping assembly; the extension direction of the support platform is the first direction, the projections of at least three of the third distance measuring members on the plane perpendicular to the first direction are non-collinear, and the projections of at least three of the fourth distance measuring members on the plane perpendicular to the first direction are non-collinear.

12. The square bar detection system according to claim 11, characterized in that: The projections of three of the at least three third distance measuring members on a plane perpendicular to the first direction form an isosceles right triangle; the projections of three of the at least three fourth distance measuring members on a plane perpendicular to the first direction form an isosceles right triangle; And / or, there are at least four third ranging components and at least four fourth ranging components, and projections of four of the at least four third ranging components on a plane perpendicular to the first direction form a square; projections of four of the at least four fourth ranging components on a plane perpendicular to the first direction form a square.

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