Chain quality detection method and equipment based on laser measurement

Abstract

The present application relates to the field of chain quality detection, and discloses a chain quality detection method based on laser measurement, which includes: a first detection head and a second detection head both include a laser emitting end arranged above the roller of the chain and a laser receiving end arranged below the roller of the chain, obtain a plurality of first detection positions of the first detection head on the roller detection assembly switching from a state not blocked by the roller to a state blocked by the roller, a plurality of second detection positions of the first detection head switching from a state blocked by the roller to a state not blocked by the roller, and obtain a plurality of first comparison positions and a plurality of second comparison positions; determine a plurality of first chain link lengths detected by the first detection head, and determine a plurality of second chain link lengths detected by the second detection head. The present application can measure and detect the chain link length of the roller chain, and improve the quality detection effect of the roller chain.

Description

Technical Field

[0001] The present application relates to the field of laser measurement technology, and more specifically, to a chain quality detection method and device based on laser measurement. Background Art

[0002] Roller chain is a chain used to transmit mechanical power. Roller chain drive is a type of power transmission of chain drive. Roller chains are widely used in household machinery and equipment, industrial machinery and equipment, and agricultural machinery and equipment, including conveying equipment, motor vehicles, bicycles and other mechanical equipment. Roller chain is composed of a series of short cylindrical rollers linked together. When in use, roller chain is usually driven by the convex teeth of the sprocket. It is a simple, reliable and efficient power transmission device. After the roller chain is produced, the production quality of the roller chain needs to be tested to ensure that the length of the roller chain meets the requirements.

[0003] Patent CN108375343B (application number: CN201810089387.0) provides an intelligent chain pre-tensioning length detection table. The console receives information from the length measuring device to adjust and control the pre-tensioning power device. The pre-tensioning and chain length measurement adopts an independently operated screw loading system and a unique combination structure of 2 sets of linear guides and 4 pallets mounted on the guides. Two sets of loading systems are used. The pre-tensioning force loading adopts a servo system, which is matched with a reducer and a precision ground screw for loading. The measuring force loading adopts a stepper motor, which is matched with a precision ground screw for loading. Two tension sensors are used for pre-tensioning and measurement, which can accurately control the chain pre-tensioning force and chain length measurement force to ensure the accuracy of chain length measurement. The length measuring device includes a grating ruler, a linear guide and an automatic measuring head arranged on one side of the workbench, and multiple fixtures are evenly spaced on the workbench. The method in patent CN108375343B can measure the total length of the roller chain, but cannot measure and quality test the link length of the roller chain. Summary of the invention

[0004] The purpose of this application is to provide a chain quality detection method and equipment based on laser measurement, which solves the technical problem of being unable to measure and detect the quality of the chain links of the roller chain, and achieves the technical effect of being able to measure and detect the quality of the chain links of the roller chain.

[0005] A chain quality detection method based on laser measurement is provided in an embodiment of the present application. The method comprises: pre-tensioning and fixing the chain according to a preset tension by a pre-tensioning component, driving a roller detection component to move along the length direction of the chain by a horizontal driving component, a plurality of rollers being provided on the chain, obtaining a plurality of first detection positions at which a first detection head on the roller detection component switches from a state not blocked by the roller to a state blocked by the roller, obtaining a plurality of second detection positions at which the first detection head on the roller detection component switches from a state blocked by the roller to a state not blocked by the roller, and obtaining a plurality of first comparison positions at which a second detection head on the roller detection component switches from a state not blocked by the roller to a state blocked by the roller, and obtaining a plurality of second comparison positions at which a second detection head on the roller detection component switches from a state blocked by the roller to a state not blocked by the roller; wherein the spacing between the detection positions of the first detection head and the second detection head in the length direction of the chain is smaller than the diameter of the rollers of the chain, and the first detection head and the second detection head both include a A laser emitting end and a laser receiving end arranged below the roller of the chain; determining multiple first chain link lengths detected by the first detection head, and determining multiple second chain link lengths detected by the second detection head; wherein, the distance between a first detection position and a second detection position spaced apart from a group of second detection positions and the first detection position minus the diameter of the roller is taken as a first chain link length, and the distance between a first comparison position and a second comparison position spaced apart from a group of second comparison positions and the first comparison position minus the diameter of the roller is taken as a second chain link length, a first chain link length and a second chain link length correspond to the same chain link, and the distance difference between the first detection position and the first comparison position of the same chain link is less than the roller diameter of the chain; when the target first chain link length or the target second chain link length corresponding to the target first chain link length is not within the preset chain link length range, or when the difference between the target first chain link length and the target second chain link length corresponding to the target first chain link length is greater than the preset chain link difference, the target chain link corresponding to the target first chain link length is marked as unqualified chain link length.

[0006] In one possible implementation, the method also includes: determining multiple first roller diameters detected by the first detection head, and determining multiple second roller diameters detected by the second detection head; wherein the difference in distance between an adjacent group of first detection positions and the second detection position is the first roller diameter, the difference in distance between an adjacent group of first comparison positions and the second comparison position is the second roller diameter, a first roller diameter and a second roller diameter correspond to the same roller, and the distance difference between the first detection position and the first comparison position corresponding to the same roller is less than the roller diameter of the chain; when the target first roller diameter or the target second roller diameter corresponding to the target first roller diameter is not within the preset roller diameter range, or when the difference between the target first roller diameter and the target second roller diameter corresponding to the target first roller diameter is greater than the preset roller diameter difference, the target roller corresponding to the target first roller diameter is marked as having an unqualified roller diameter.

[0007] In another possible implementation, the method also includes: determining multiple first roller spacings detected by the first detection head, and determining multiple second roller spacings detected by the second detection head; wherein the difference in distance between an adjacent group of second detection positions and the first detection position is the first roller spacing, the difference in distance between an adjacent group of second comparison positions and the first comparison position is the second roller spacing, a first roller spacing and a second roller spacing correspond to the same roller spacing, and the distance difference between the second detection position and the second comparison position corresponding to the same roller spacing is less than the roller diameter of the chain; when the target first roller spacing or the target second roller spacing corresponding to the target first roller spacing is less than the preset minimum roller spacing, or when the difference between the target first roller spacing and the target second roller spacing corresponding to the target first roller spacing is greater than the preset roller spacing difference, the target roller spacing corresponding to the target first roller spacing is marked as unqualified roller spacing.

[0008] In another possible implementation, the method further includes: when the target first roller spacing or the target second roller spacing is greater than a preset maximum roller spacing, marking the target first roller corresponding to the target first roller spacing or the target second roller spacing as roller missing.

[0009] In another possible implementation, the method also includes: acquiring a first total length corresponding to a preset number of links and a second total length corresponding to a preset number of links backward in sequence along the length direction of the chain, the first total length and the second total length corresponding to the same section of chain, and the distance difference between a first first detection position corresponding to the first total length and a first first comparison position corresponding to the second total length of the same section of chain is less than the roller diameter of the chain; when the first total length or the second total length is not within the preset total length range, marking multiple links corresponding to the first total length or the second total length as unqualified total length of the links.

[0010] In another possible implementation, a first total length corresponding to a preset number of links and a second total length corresponding to a preset number of links are sequentially obtained backward along the length direction of the chain, and further includes: in the process of detecting the first total length and the second total length, detecting the lateral distance from the side wall of the chain to the lateral distance measuring component along the length direction of the chain by a lateral distance measuring component; when the lateral distance is not within the lateral distance range, prompting the chain to be re-pre-tensioned and fixed to ensure that the fixing direction of the chain is not skewed.

[0011] In another possible implementation, a first total length corresponding to a preset number of links and a second total length corresponding to a preset number of links are obtained sequentially backward along the length direction of the chain, including: obtaining a first number of first link lengths sequentially backward along the length direction of the chain, and a first total length corresponding to discarding the first number of first link lengths forward, and obtaining a first number of second link lengths sequentially backward along the length direction of the chain, and a second total length corresponding to discarding the first number of second link lengths forward; wherein, when the preset number is 10, the first number may be 1, 2 or 3.

[0012] In another possible implementation, the method also includes: obtaining a first vibration detection value at a laser emitting end of the rotating arm close to the first detection head and the second detection head through a first vibration detection component, and obtaining a second vibration detection value at a laser receiving end close to the first detection head and the second detection head through a second vibration detection component; when the amplitude of the first vibration detection value or the second vibration detection value is greater than a preset amplitude, or the amplitude difference between the first vibration detection value and the second vibration detection value is greater than a preset amplitude difference, a prompt message is issued to adjust the relative position of the rotating arm and the chain.

[0013] The embodiment of the present application also provides a chain quality detection device based on laser measurement, which adopts any of the above-mentioned chain quality detection methods based on laser measurement, including a pre-tensioning component, a horizontal drive component, a roller detection component and a calculation component, the pre-tensioning component is used to clamp the chain and apply a pre-tensioning force, the horizontal drive component is used to drive the roller detection component to move along the length direction of the chain, and the horizontal drive component can detect the position information of the roller detection component in the length direction of the chain; the roller detection component is provided with a first detection head and a second detection head, the first detection head and the second detection head both include a laser emitting end arranged above the roller of the chain and a laser receiving end arranged below the roller of the chain, the spacing between the detection positions of the first detection head and the second detection head in the length direction of the chain is less than the diameter of the roller of the chain, and the horizontal drive component and the roller detection component are electrically connected to the calculation component respectively.

[0014] In another possible implementation, a position adjustment component is provided on the roller detection component, and the distance between the first detection head and the second detection head in the length direction of the chain can be adjusted by the position adjustment component.

[0015] In another possible implementation, the roller detection assembly includes a rotatable rotating arm, and the first detection head and the second detection head are arranged on the rotating arm. The rotating arm can be rotated to a horizontal position to make way for the chain, or the rotating arm can be rotated to a vertical position so that the laser emitting ends of the first detection head and the second detection head are located above the roller of the chain and the laser receiving ends of the first detection head and the second detection head are located below the roller of the chain.

[0016] In another possible implementation, a lateral distance measuring component is further provided on the rotating arm, and the lateral distance measuring component is used to detect the lateral distance from the side wall of the chain to the lateral distance measuring component.

[0017] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0018] The embodiment of the present application provides a chain quality detection method based on laser measurement, and the method includes: pre-tensioning and fixing the chain according to a preset tension by a pre-tensioning component, a horizontal driving component driving a roller detection component to move along the length direction of the chain, a plurality of rollers are provided on the chain, a plurality of first detection positions of a first detection head on the roller detection component switching from a state not blocked by the roller to a state blocked by the roller are obtained, a plurality of second detection positions of the first detection head on the roller detection component switching from a state blocked by the roller to a state not blocked by the roller are obtained, and a plurality of first comparison positions of a second detection head on the roller detection component switching from a state not blocked by the roller to a state blocked by the roller are obtained, and a plurality of second comparison positions of a second detection head on the roller detection component switching from a state blocked by the roller to a state not blocked by the roller are obtained; wherein the spacing between the detection positions of the first detection head and the second detection head in the length direction of the chain is less than the diameter of the roller of the chain; determining the first detection position A plurality of first chain link lengths detected by a detection head, and a plurality of second chain link lengths detected by a second detection head are determined; wherein, the distance between a first detection position and a second detection position separated by a group of second detection positions and a first detection position minus the diameter of the roller is taken as a first chain link length, and the distance between a first comparison position and a second comparison position separated by a group of second comparison positions and a first comparison position minus the diameter of the roller is taken as a second chain link length, a first chain link length and a second chain link length correspond to the same chain link, and the distance difference between the first detection position and the first comparison position of the same chain link is less than the roller diameter of the chain; when the target first chain link length or the target second chain link length corresponding to the target first chain link length is greater than or not within the preset chain link length range, or when the difference between the target first chain link length and the target second chain link length corresponding to the target first chain link length is greater than the preset chain link difference, the target first chain link corresponding to the target first chain link length is marked as unqualified chain link length. The chain quality detection method based on laser measurement in the embodiment of the present application can measure the length of the same chain link simultaneously through the first detection head and the second detection head, and compare and verify the chain link length detection results with each other through the detection results of the first detection head and the second detection head, thereby ensuring the accuracy and precision of the chain link length detection and improving the effect and efficiency of the chain link detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1A schematic flow chart of a chain quality detection method based on laser measurement provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of a chain quality detection device based on laser measurement provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram of a side cross-sectional structure of a chain quality detection device based on laser measurement provided in an embodiment of the present application;

[0023] Figure 4 for Figure 3 A schematic diagram of the local structure of a chain quality detection device based on laser measurement at location A;

[0024] Figure 5 A schematic diagram of a partial structure of a roller detection assembly provided in an embodiment of the present application;

[0025] Figure 6 A schematic diagram of a chain length measurement process provided in an embodiment of the present application;

[0026] In the figure, 1, pre-tensioning component; 2, horizontal driving component; 3, roller detection component; 301, laser emitting end; 302, laser receiving end; 31, first detection head; 32, second detection head; 33, position adjustment component; 34, rotating arm; 341, first vibration detection component; 342, second vibration detection component; 35, lateral ranging component; 4, calculation component; 5, chain; 51, roller. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0028] It should be noted that when a component or structure is referred to as being "fixed to" or "disposed on" another component or structure, it may be directly on the other component or structure or indirectly on the other component or structure. When a component or structure is referred to as being "connected to" another component or structure, it may be directly connected to the other component or structure or indirectly connected to the other component or structure.

[0029] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the 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 a component or structure referred to 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.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0031] The chain length detection table in the prior art can measure the total length of the roller chain, but cannot measure the link length and perform quality detection on the roller chain.

[0032] Based on the above reasons, an embodiment of the present application provides a chain quality detection method based on laser measurement, which includes: pre-tensioning and fixing the chain according to a preset tension by a pre-tensioning component, driving the roller detection component to move along the length direction of the chain by a horizontal drive component, and a plurality of rollers are provided on the chain, obtaining a plurality of first detection positions where the first detection head on the roller detection component switches from a state not blocked by the roller to a state blocked by the roller, obtaining a plurality of second detection positions where the first detection head on the roller detection component switches from a state blocked by the roller to a state not blocked by the roller, and obtaining a plurality of first comparison positions where the second detection head on the roller detection component switches from a state not blocked by the roller to a state blocked by the roller, and obtaining a plurality of second comparison positions where the second detection head on the roller detection component switches from a state blocked by the roller to a state not blocked by the roller; wherein the spacing between the detection positions of the first detection head and the second detection head in the length direction of the chain is less than the diameter of the rollers of the chain. ; Determine multiple first chain link lengths detected by the first detection head, and determine multiple second chain link lengths detected by the second detection head; wherein, the distance between the first detection position and the second detection position, which are separated by a group of second detection positions and the first detection position, minus the diameter of the roller, is taken as a first chain link length, and the distance between the first comparison position and the second comparison position, which are separated by a group of second comparison positions and the first comparison position, minus the diameter of the roller, is taken as a second chain link length, a first chain link length and a second chain link length correspond to the same chain link, and the distance difference between the first detection position and the first comparison position of the same chain link is less than the roller diameter of the chain; when the target first chain link length or the target second chain link length corresponding to the target first chain link length is greater than or not within the preset chain link length range, or when the difference between the target first chain link length and the target second chain link length corresponding to the target first chain link length is greater than the preset chain link difference, the target first chain link corresponding to the target first chain link length is marked as unqualified chain link length. The chain quality detection method based on laser measurement in the embodiment of the present application can measure the length of the same chain link simultaneously through the first detection head and the second detection head, and compare and verify the chain link length detection results with each other through the detection results of the first detection head and the second detection head, thereby ensuring the accuracy and precision of the chain link length detection and improving the effect and efficiency of the chain link detection.

[0033] In some scenarios, a chain quality detection method based on laser measurement in an embodiment of the present application can be applied to chain quality detection, which can improve the efficiency of chain quality detection.

[0034] The following is a detailed description of a chain quality detection method and device based on laser measurement provided in an embodiment of the present application with reference to specific examples.

[0035] Figure 1A schematic diagram of a chain quality detection method based on laser measurement provided in an embodiment of the present application is shown in FIG. Figure 1 As shown, the method includes S110 to S130, and S110 to S130 are described in detail below.

[0036] S110, pre-tensioning and fixing the chain 5 according to the preset tension through the pre-tensioning component 1, the horizontal driving component 2 drives the roller detection component 3 to move along the length direction of the chain 5, a plurality of rollers 51 are provided on the chain 5, a plurality of first detection positions of the first detection head 31 on the roller detection component 3 switching from a state not blocked by the roller 51 to a state blocked by the roller 51 are obtained, a plurality of second detection positions of the first detection head 31 on the roller detection component 3 switching from a state blocked by the roller 51 to a state not blocked by the roller 51 are obtained, and a plurality of first comparison positions of the second detection head 32 on the roller detection component 3 switching from a state not blocked by the roller 51 to a state blocked by the roller 51 are obtained, and a plurality of second comparison positions of the second detection head 32 on the roller detection component 3 switching from a state blocked by the roller 51 to a state not blocked by the roller 51 are obtained. Wherein, the spacing between the detection positions of the first detection head 31 and the second detection head 32 in the length direction of the chain 5 is smaller than the diameter of the roller 51 of the chain 5.

[0037] Figure 2 A schematic diagram of the three-dimensional structure of a chain quality detection device based on laser measurement provided in an embodiment of the present application, such as Figure 2 As shown, when the quality inspection of the chain 5 is carried out, the chain 5 can first be pre-tensioned and fixed according to a preset tension through the pre-tensioning component 1, and then the length of the chain 5 can be inspected under the pre-tensioning force to ensure the accuracy of the length inspection of the chain 5.

[0038] Figure 3 A schematic diagram of a side cross-sectional structure of a chain quality detection device based on laser measurement provided in an embodiment of the present application, Figure 4 for Figure 3 A schematic diagram of the local structure of a chain quality detection device based on laser measurement at A, as shown in Figures 2 to 4 As shown, the horizontal drive assembly 2 drives the roller detection assembly 3 to move along the length direction of the chain 5.

[0039] like Figure 4 As shown, the chain 5 is provided with a plurality of rollers 51 , and the size of the chain 5 can be verified by detecting the sizes of the plurality of rollers 51 .

[0040] Figure 5 A partial structural diagram of a roller detection assembly provided in an embodiment of the present application is shown in FIG. Figure 4 and Figure 5As shown, the roller detection assembly 3 is provided with a first detection head 31 and a second detection head 32, and the first detection head 31 and the second detection head 32 are used to detect the positions of the rollers of the chain.

[0041] Exemplarily, the first detection head 31 and the second detection head 32 both include a laser emitting end 301 disposed above the roller 51 of the chain 5 and a laser receiving end 302 disposed below the roller 51 of the chain 5, thereby being able to detect the roller position of the chain through the cooperation between the laser emitting end 301 and the laser receiving end 302.

[0042] like Figure 5 As shown, the spacing between the detection positions of the first detection head 31 and the second detection head 32 in the length direction of the chain 5 is smaller than the diameter of the roller 51 of the chain 5, which facilitates the identification of the detection positions of the first detection head 31 and the second detection head 32 for the same roller in the position detection result, thereby enabling the first detection head 31 and the second detection head 32 to detect the length of the chain 5 at different positions in the length direction of the chain 5, and to verify the detection results of the first detection head 31 and the second detection head 32 with each other.

[0043] For example, Figure 5 As shown, the distance between the detection positions of the first detection head 31 and the second detection head 32 in the length direction of the chain 5 is smaller than 1 / 2 of the diameter of the roller 51 of the chain 5 .

[0044] Figure 6 A schematic diagram of a chain length measurement process provided in an embodiment of the present application, such as Figure 6 As shown, when the first detection head 31 detects the length of the chain 5 at different positions in the length direction of the chain 5, a plurality of first detection positions at which the first detection head 31 on the roller detection assembly 3 switches from a state not blocked by the roller 51 to a state blocked by the roller 51 can be obtained, and a plurality of second detection positions at which the first detection head 31 on the roller detection assembly 3 switches from a state blocked by the roller 51 to a state not blocked by the roller 51 can be obtained, thereby enabling the length of the chain 5 to be detected through the plurality of first detection positions and the plurality of second detection positions.

[0045] like Figure 6 As shown, the plurality of first detection positions may be respectively a first detection position a1, a first detection position a2, a first detection position a3, a first detection position a4 and a first detection position an.

[0046] like Figure 6 As shown, the plurality of second detection positions may be respectively a second detection position b1, a second detection position b2, a second detection position b3, a second detection position b4 and a second detection position bn.

[0047] like Figure 6 As shown, when the second detection head 32 detects the length of the chain 5 at different positions in the length direction of the chain 5, the second detection head 32 on the roller detection assembly 3 switches from a state not blocked by the roller 51 to a plurality of first comparison positions where it is blocked by the roller 51, and obtains a plurality of second comparison positions where the second detection head 32 on the roller detection assembly 3 switches from a state blocked by the roller 51 to a state not blocked by the roller 51, thereby being able to detect the length of the chain 5 through the plurality of first comparison positions and the plurality of second comparison positions.

[0048] like Figure 6 As shown, the plurality of first control positions may be respectively a first control position c1, a first control position c2, a first control position c3, a first control position c4 and a first control position cn.

[0049] like Figure 6 As shown, the plurality of second control positions may be a second control position d1 , a second control position d2 , a second control position d3 , a second control position d4 and a second control position dn.

[0050] S120, determining a plurality of first chain link lengths detected by the first detection head 31, and determining a plurality of second chain link lengths detected by the second detection head 32. The first chain link length is obtained by subtracting the diameter of the roller 51 from the distance between the first detection position and the second detection position, which are separated by a group of second detection positions and the first detection position, and the second chain link length is obtained by subtracting the diameter of the roller 51 from the distance between the first comparison position and the second comparison position, which are separated by a group of second comparison positions and the first comparison position, and the second chain link length is obtained by subtracting the diameter of the roller 51. A first chain link length and a second chain link length correspond to the same chain link, and the distance difference between the first detection position and the first comparison position of the same chain link is less than the diameter of the roller 51 of the chain 5.

[0051] like Figure 6 As shown, after obtaining multiple first detection positions, multiple second detection positions, multiple first comparison positions and multiple second comparison positions, multiple first chain link lengths detected by the first detection head 31 can be determined, and multiple second chain link lengths detected by the second detection head 32 can be determined, and then by comparing the multiple first chain link lengths with the multiple second chain link lengths, it can be determined whether the length quality of the chain meets the requirements.

[0052] like Figure 6As shown, in the length direction of the chain, the distance between a group of second detection positions and the first detection position minus the diameter of the roller 51 can be taken as a first chain link length. For example, the distance between a group of second detection positions b1 and the first detection position a2 minus the diameter D of the roller 51 can be taken as a first chain link length J11.

[0053] like Figure 6 As shown, in the length direction of the chain, the distance between a first control position and a second control position that separate a group of second control positions and a first control position minus the diameter of the roller 51 can be taken as a second link length. For example, the distance between a first control position c1 and a second control position d2 that separate a group of second control positions d1 and a first control position c2 minus the diameter D of the roller 51 can be taken as a second link length J21.

[0054] like Figure 6 As shown, a first link length J11 and a second link length J21 correspond to the same link L1. Since the spacing between the detection positions of the first detection head 31 and the second detection head 32 in the length direction of the chain 5 is smaller than the diameter of the roller 51 of the chain 5, the distance difference between the first detection position and the first comparison position of the same link is smaller than the diameter of the roller 51 of the chain 5, that is, the distance difference between the first detection position a1 and the first comparison position c1 of the link L1 is smaller than the diameter of the roller 51 of the chain 5, which facilitates the identification of the first link length and the second link length according to the difference between the first detection position a1 and the first comparison position c1.

[0055] S130. When the target first link length or the target second link length corresponding to the target first link length is not within the preset link length range, or when the difference between the target first link length and the target second link length corresponding to the target first link length is greater than the preset link difference, the target link corresponding to the target first link length is marked as unqualified link length.

[0056] After obtaining multiple first chain link lengths and multiple second chain link lengths, when the target first chain link length or the target second chain link length corresponding to the target first chain link length is not within the preset chain link length range, it means that the target first chain link length or the absolute length of the target first chain link length does not meet the requirements, and the target chain link corresponding to the target first chain link length can be marked as unqualified chain link length, thereby realizing quality inspection of the chain.

[0057] After obtaining multiple first chain link lengths and multiple second chain link lengths, when the difference between the target first chain link length and the target second chain link length corresponding to the target first chain link length is greater than the preset chain link difference, it means that the length difference between the target first chain link length and the target first chain link length respectively detected by the first detection head and the second detection head is too large, and the size of the target chain link may have a large error. At this time, the target chain link corresponding to the target first chain link length can be marked as unqualified chain link length, so as to facilitate subsequent re-inspection of the size of the target chain link.

[0058] Exemplarily, the preset link length range may be the link length ±0.2 cm.

[0059] Exemplarily, the preset link difference may be 0.3 cm.

[0060] The beneficial effect brought about by the above-mentioned implementation method is that by performing quality inspection on the length of the chain links through mutual verification between the first detection head and the second detection head, false detection or missed detection can be avoided, thereby improving the efficiency and accuracy of chain length detection.

[0061] The beneficial effect brought about by the above-mentioned implementation method is that the distance difference between the first detection position and the first comparison position of the chain link is smaller than the roller diameter of the chain, which facilitates the identification of the first link length and the second link length according to the difference between the first detection position and the first comparison position in multiple groups of first detection positions and first comparison positions.

[0062] In some implementations, the above method further includes S210 to S220, and S210 to S220 are described in detail below.

[0063] S210, determining multiple first roller diameters detected by the first detection head 31, and determining multiple second roller diameters detected by the second detection head 32. The difference in distance between a group of adjacent first detection positions and a second detection position is the first roller diameter, the difference in distance between a group of adjacent first comparison positions and a second comparison position is the second roller diameter, one first roller diameter and one second roller diameter correspond to the same roller, and the difference in distance between the first detection position and the first comparison position corresponding to the same roller is less than the diameter of the roller 51 of the chain 5.

[0064] During detection, multiple first roller diameters detected by the first detection head 31 and multiple second roller diameters detected by the second detection head 32 can be determined, and the roller diameter of the chain can be verified by the multiple first roller diameters and the multiple second roller diameters.

[0065] like Figure 6As shown, exemplarily, in the length direction of the chain, the difference in distance between an adjacent group of first detection positions a1 and a second detection position b1 is the first roller diameter D1, the difference in distance between an adjacent group of first comparison positions c1 and a second comparison position d1 is the second roller diameter M1, and a first roller diameter D1 and a second roller diameter M1 correspond to the same roller 51, and thus a plurality of first roller diameters and a plurality of second roller diameters can be calculated.

[0066] When detecting the first roller diameter and the second roller diameter corresponding to the same roller, the distance difference between the first detection position and the first comparison position corresponding to the same roller is smaller than the diameter of the roller 51 of the chain 5, which facilitates identification of the first detection position and the first comparison position corresponding to the same roller in the detection results of the first detection head and the second detection head, and further facilitates identification of the data group of the corresponding roller diameter in the detection results of multiple first detection positions and multiple first comparison positions.

[0067] S220. When the target first roller diameter or the target second roller diameter corresponding to the target first roller diameter is not within the preset roller diameter range, or when the difference between the target first roller diameter and the target second roller diameter corresponding to the target first roller diameter is greater than the preset roller diameter difference, the target roller corresponding to the target first roller diameter is marked as having an unqualified roller diameter.

[0068] After obtaining multiple roller diameters, when the target first roller diameter or the target second roller diameter corresponding to the target first roller diameter is not within the preset roller diameter range, it means that the detected first roller diameter of the target roller or the target first roller diameter is not within the preset range, and the target roller corresponding to the target first roller diameter can be marked as unqualified roller diameter.

[0069] After obtaining multiple roller diameters, when the difference between the target first roller diameter and the target second roller diameter corresponding to the target first roller diameter is greater than the preset roller diameter difference, it means that the difference between the detection values ​​of the target first roller diameter and the target first roller diameter respectively detected by the first detection head and the second detection head is too large, and there may be a large error in the diameter of the target roller. At this time, the target roller corresponding to the target first roller diameter can be marked as unqualified roller diameter, so as to facilitate subsequent re-inspection of the target roller diameter.

[0070] Exemplarily, the preset roller diameter range may be the standard roller diameter ±0.1 cm.

[0071] Exemplarily, the preset roller diameter difference may be 0.2 cm.

[0072] The beneficial effect brought about by the above implementation method is that the detection value of the roller diameter can be compared and verified by the first detection head and the second detection head, thereby achieving high-precision detection of the roller diameter and avoiding false detection or missed detection.

[0073] In some implementations, the above method further includes S310 to S320, and S310 to S320 are described in detail below.

[0074] S310, determining a plurality of first roller spacings detected by the first detection head 31, and determining a plurality of second roller spacings detected by the second detection head 32. The difference between a set of adjacent second detection positions and the first detection position is the first roller spacing, the difference between a set of adjacent second comparison positions and the first comparison position is the second roller spacing, one first roller spacing and one second roller spacing correspond to the same roller spacing, and the difference between the distances of the second detection position and the second comparison position corresponding to the same roller spacing is less than the diameter of the roller 51 of the chain 5.

[0075] When inspecting the chain, it is also possible to determine multiple first roller spacings detected by the first inspection head 31 and multiple second roller spacings detected by the second inspection head 32, and then perform quality inspection on the roller spacings through the multiple first roller spacings and multiple second roller spacings.

[0076] For example, Figure 6 As shown, in the length direction of the chain, the difference in distance between an adjacent group of second detection positions b1 and the first detection position a2 is the first roller spacing K1, and the difference in distance between an adjacent group of second comparison positions d1 and the first comparison position c1 is the second roller spacing N1, so that the chain length quality can be detected based on the first roller spacing K1 and the second roller spacing N1.

[0077] like Figure 6 As shown, a first roller spacing and a second roller spacing correspond to the same roller spacing, and the distance difference between the second detection position and the second comparison position corresponding to the same roller spacing is smaller than the diameter of the roller 51 of the chain 5, which facilitates identification of the second detection position and the second comparison position corresponding to the same roller in the detection results of the first detection head and the second detection head, and further facilitates determination of the detection values ​​of multiple roller spacings in the position detection results.

[0078] S320. When the target first roller spacing or the target second roller spacing corresponding to the target first roller spacing is less than the preset minimum roller spacing, or when the difference between the target first roller spacing and the target second roller spacing corresponding to the target first roller spacing is greater than the preset roller spacing difference, the target roller spacing corresponding to the target first roller spacing is marked as unqualified roller spacing.

[0079] When performing roller spacing detection, when the target first roller spacing or the target second roller spacing corresponding to the target first roller spacing is less than the preset minimum roller spacing, it means that the target first roller spacing or the target second roller spacing of the target roller spacing is too small. At this time, the target roller spacing corresponding to the target first roller spacing can be marked as unqualified roller diameter.

[0080] When performing roller spacing detection, when the difference between the target first roller spacing and the target second roller spacing corresponding to the target first roller spacing is greater than the preset roller spacing difference, it means that the difference between the target first roller spacing detected by the first detection head and the target second roller spacing detected by the second detection head is too large, and the target roller spacing may have a large production error. At this time, the target roller spacing corresponding to the target first roller spacing can be marked as unqualified roller spacing to facilitate subsequent quality inspection of the target roller spacing.

[0081] Exemplarily, the preset minimum roller spacing may be 0.5 cm.

[0082] Exemplarily, the preset roller spacing difference may be 0.2 cm.

[0083] The beneficial effect brought about by the above implementation method is that the roller spacing can be quality inspected through the detection results of the first detection head and the second detection head, which can avoid false detection or missed detection.

[0084] In some implementations, the method further includes: when the target first roller spacing or the target second roller spacing is greater than a preset maximum roller spacing, marking the target first roller corresponding to the target first roller spacing or the target second roller spacing as roller missing.

[0085] When performing roller spacing detection, when the target first roller spacing or the target second roller spacing is greater than the preset maximum roller spacing, it means that the target first roller spacing or the target second roller spacing may cause the detection value to be too large due to the missing roller. At this time, the target first roller corresponding to the target first roller spacing or the target second roller spacing can be marked as missing roller to facilitate subsequent manual re-inspection.

[0086] Exemplarily, the preset maximum roller spacing may be 0.8 cm.

[0087] The beneficial effect brought about by the above implementation method is that it can detect the missing roller with high precision and avoid false detection or missed detection.

[0088] In some implementations, the above method further includes S410 to S420, which are described below.

[0089] S410, sequentially acquiring a first total length corresponding to a preset number of links and a second total length corresponding to a preset number of links backward along the length direction of the chain 5, the first total length and the second total length corresponding to the same section of the chain 5, and the distance difference between a first first detection position corresponding to the first total length and a first first comparison position corresponding to the second total length of the same section of the chain 5 is less than the diameter of the roller 51 of the chain 5.

[0090] When performing chain length detection, the first total length corresponding to a preset number of first links and the second total length corresponding to a preset number of second links can also be obtained backward along the length direction of the chain 5, thereby enabling quality inspection of the link length within a certain number of links.

[0091] Exemplarily, when a first total length corresponding to a preset number of first links and a second total length corresponding to a preset number of second links are obtained sequentially backward along the length direction of the chain 5, the first link lengths of the preset number of first links can be obtained sequentially backward along the length direction of the chain 5 by the first detection head, and the second total length corresponding to the preset number of second links can be obtained sequentially backward along the length direction of the chain 5 by the second detection head.

[0092] Exemplarily, the preset number may be 5.

[0093] When performing length detection on multiple chain links, the first total length and the second total length correspond to the same section of chain 5, and the distance difference between the first first detection position corresponding to the first total length and the first first comparison position corresponding to the second total length of the same section of chain 5 is smaller than the diameter of the roller 51 of the chain 5, so as to facilitate identifying the first detection position and the first comparison position corresponding to the same roller in the detection results of the first detection head and the second detection head.

[0094] S420: When the first total length or the second total length is not within a preset total length range, mark a plurality of chain links corresponding to the first total length or the second total length as having unqualified chain link total length.

[0095] When detecting the length of the chain, if the first total length or the second total length is not within the preset total length range, it means that the production error of the preset number of chain links currently being detected is large, and multiple chain links corresponding to the first total length or the second total length can be marked as unqualified in total chain length to facilitate subsequent manual re-inspection.

[0096] The beneficial effect brought about by the above implementation method is that by detecting the production errors of a preset number of chain links through the first detection head and the second detection head, the quality detection effect of the chain can be improved and false detection or missed detection can be avoided.

[0097] In some implementations, in the above S410, a first total length corresponding to a preset number of links and a second total length corresponding to a preset number of links are sequentially obtained backward along the length direction of the chain 5, including S411 to S412, and S411 to S412 are specifically described below.

[0098] S411 . During the process of detecting the first total length and the second total length, the lateral distance measuring component 35 is used to detect the lateral distance from the side wall of the chain 5 to the lateral distance measuring component 35 along the length direction of the chain 5 .

[0099] During the process of detecting the first total length and the second total length, the lateral distance measuring component 35 can be used to detect the lateral distance from the side wall of the chain 5 to the lateral distance measuring component 35 along the length direction of the chain 5, and then the fixed position of the chain can be verified by the lateral distance.

[0100] S412. When the lateral distance is not within the lateral distance range, it is prompted to pre-tension and fix the chain 5 again to ensure that the fixing direction of the chain is not deflected.

[0101] When the lateral distance from the side wall of the chain 5 to the lateral distance measuring component 35 along the length direction of the chain 5 is detected by the lateral distance measuring component 35, since the side wall of the chain 5 is provided with a fixing column for fixing the roller, the lateral distance will fluctuate within a certain range.

[0102] During use, when the lateral distance is not within the lateral distance range, the chain 5 may be prompted to be re-pre-tensioned and fixed to ensure that the fixing direction of the chain is not skewed, so as to ensure the accuracy of the detection results of the chain link length, roller diameter and roller spacing of the chain.

[0103] Exemplarily, the lateral distance range may be a designed fixed lateral distance ±0.8 cm.

[0104] The beneficial effect brought about by the above implementation method is that the lateral distance from the side wall of the chain to the lateral distance measuring component along the length direction of the chain can be detected by the lateral distance measuring component, so as to ensure the accuracy of the detection results of the chain link length, roller diameter and roller spacing of the chain.

[0105] In some implementations, in the above S410, sequentially obtaining a first total length corresponding to a preset number of chain links and a second total length corresponding to a preset number of chain links backward along the length direction of the chain 5 includes: sequentially obtaining a first number of first chain link lengths backward along the length direction of the chain 5, and a first total length corresponding to the first number of first chain link lengths discarded forward, and sequentially obtaining a first number of second chain link lengths backward along the length direction of the chain 5, and a second total length corresponding to the first number of second chain link lengths discarded forward. Wherein, when the preset number is 10, the first number may be 1, 2, or 3.

[0106] like Figure 6 As shown, the first detection head can be used to sequentially obtain a first number of first chain link lengths backward along the length direction of the chain 5, and a first total length corresponding to discarding the first number of first chain link lengths forward. In this way, the first detection head can alternately replace the first number of chain links backward to achieve length detection of a preset number of chain links.

[0107] like Figure 6 As shown, a second detection head can be used to sequentially acquire a first number of second chain link lengths backward along the length direction of the chain 5, and a second total length corresponding to discarding the first number of second chain link lengths forward. In this way, the length detection of a preset number of chain links can be achieved by alternately replacing the first number of chain links backward with the second detection head.

[0108] Exemplarily, when the preset number is 10, the first number may be 1, 2 or 3.

[0109] The beneficial effect brought about by the above implementation method is that when detecting the chain length of a preset number of chain links, the first number of chain links can be alternately replaced backwards to achieve accurate detection of the chain length, thereby improving the detection accuracy of the chain length.

[0110] In some implementations, the above method further includes S510 to S520, and S510 to S520 are described in detail below.

[0111] S510, obtaining a first vibration detection value at the laser emitting end 301 of the rotating arm 34 close to the first detection head 31 and the second detection head 32 through the first vibration detection component 341, and obtaining a second vibration detection value at the laser receiving end 302 close to the first detection head 31 and the second detection head 32 through the second vibration detection component 342.

[0112] When detecting the length of the chain, the chain may come into contact with the first detection head 31 and the second detection head 32 , causing the first detection head 31 and the second detection head 32 to vibrate.

[0113] When detecting the chain length, the first vibration detection value at the laser emitting end 301 of the rotating arm 34 close to the first detection head 31 and the second detection head 32 can be obtained through the first vibration detection component 341. The first vibration detection value reflects the vibration state at the laser emitting end 301 of the first detection head 31 and the second detection head 32.

[0114] When detecting the chain length, a second vibration detection value at the laser receiving end 302 close to the first detection head 31 and the second detection head 32 can also be obtained through the second vibration detection component 342. The second vibration detection value reflects the vibration state at the laser receiving end 302 of the first detection head 31 and the second detection head 32.

[0115] S520. When the amplitude of the first vibration detection value or the second vibration detection value is greater than the preset amplitude, or when the amplitude difference between the first vibration detection value and the second vibration detection value is greater than the preset amplitude difference, a prompt message is issued to adjust the relative position of the rotating arm 34 and the chain 5.

[0116] When performing vibration detection on the first detection head 31 and the second detection head 32, when the amplitude of the first vibration detection value or the second vibration detection value is greater than the preset amplitude, it means that the vibration amplitude of the first detection head 31 or the second detection head 32 is too large, which means that the chain 5 may be in contact with the first detection head 31 or the second detection head 32, resulting in the vibration amplitude of the first detection head 31 or the second detection head 32 being too large. At this time, a prompt message for adjusting the relative position of the rotating arm 34 and the chain 5 may be issued to avoid the chain 5 from being in contact with the first detection head 31 or the second detection head 32.

[0117] When performing vibration detection on the first detection head 31 and the second detection head 32, when the amplitude difference between the first vibration detection value and the second vibration detection value is greater than the preset amplitude difference, it means that the chain 5 may be in contact with the first detection head 31 or the second detection head 32, resulting in too large a difference in the vibration amplitude of the first detection head 31 or the second detection head 32. At this time, a prompt message for adjusting the relative position of the rotating arm 34 and the chain 5 may be issued to avoid possible contact between the chain 5 and the first detection head 31 or the second detection head 32.

[0118] The beneficial effect brought about by the above implementation method is that the contact state between the chain and the first detection head or the second detection head can be detected, thereby improving the detection accuracy of the first detection head and the second detection head.

[0119] The embodiment of the present application also provides a chain quality detection device based on laser measurement, which adopts any of the above chain quality detection methods based on laser measurement, such as Figures 2 to 5 As shown, the chain quality detection equipment based on laser measurement includes a pre-tensioning component 1, a horizontal driving component 2, a roller detection component 3 and a calculation component 4. The pre-tensioning component 1 is used to clamp the chain 5 and apply a pre-tensioning force. The horizontal driving component 2 is used to drive the roller detection component 3 to move along the length direction of the chain 5. The horizontal driving component 2 can detect the position information of the roller detection component 3 in the length direction of the chain 5.

[0120] like Figures 2 to 5As shown, the roller detection assembly 3 is provided with a first detection head 31 and a second detection head 32, and the first detection head 31 and the second detection head 32 both include a laser emitting end 301 arranged above the roller 51 of the chain 5 and a laser receiving end 302 arranged below the roller 51 of the chain 5, and the spacing between the detection positions of the first detection head 31 and the second detection head 32 in the length direction of the chain 5 is smaller than the diameter of the roller 51 of the chain 5, and the horizontal driving assembly 2 and the roller detection assembly 3 are electrically connected to the computing assembly 4, respectively.

[0121] When detecting the chain length, the detection results of the horizontal drive component 2 and the roller detection component 3 can be calculated and processed by the calculation component 4 to obtain the calculation result of the chain length.

[0122] Exemplarily, the horizontal drive component 2 can drive the roller detection component 3 to move along the length of the chain 5 through a screw. When the horizontal drive component 2 detects the position information of the roller detection component 3 in the length direction of the chain 5, the position information of the roller detection component 3 can be determined by the rotation speed of the screw.

[0123] The embodiment of the present application can detect the chain length through the above method. The beneficial effects brought about by the embodiment of the present application have been described in the above method and will not be repeated here.

[0124] In some implementations, a position adjustment component 33 is provided on the roller detection component 3 , and the position adjustment component 33 can be used to adjust the spacing between the first detection head 31 and the second detection head 32 in the length direction of the chain 5 .

[0125] like Figure 4 As shown, a position adjustment component 33 is provided on the roller detection component 3, and the position adjustment component 33 can be used to adjust the spacing between the first detection head 31 and the second detection head 32 in the length direction of the chain 5. The position adjustment component 33 can adjust the distance between the first detection head 31 and the second detection head 32, so that the first detection head 31 and the second detection head 32 can adapt to the size detection of chains 5 of different specifications.

[0126] In some implementations, the roller detection assembly 3 includes a rotatable rotating arm 34, on which the first detection head 31 and the second detection head 32 are disposed. The rotating arm 34 can be rotated to a horizontal position to make way for the chain 5, or the rotating arm 34 can be rotated to a vertical position so that the laser emitting ends 301 of the first detection head 31 and the second detection head 32 are located above the roller 51 of the chain 5, and the laser receiving ends 302 of the first detection head 31 and the second detection head 32 are located below the roller 51 of the chain 5.

[0127] like Figure 3 and Figure 4As shown, structurally, the roller detection assembly 3 includes a rotatable rotating arm 34 , on which the first detection head 31 and the second detection head 32 are disposed, and the rotating arm 34 is used to fix the first detection head 31 and the second detection head 32 .

[0128] When in use, the rotating arm 34 can be rotated to a horizontal position to make way for the chain 5 , so that the first detection head 31 and the second detection head 32 will not be in contact when the chain 5 is fixed.

[0129] When in use, the rotating arm 34 can be rotated to a vertical position so that the laser emitting end 301 of the first detection head 31 and the second detection head 32 is located above the roller 51 of the chain 5, and the laser receiving end 302 of the first detection head 31 and the second detection head 32 is located below the roller 51 of the chain 5, thereby being able to detect the length of the chain 5.

[0130] The beneficial effect brought about by the above implementation method is that when the chain is fixed, there will be no contact with the first detection head and the second detection head, thereby ensuring the convenience of the device when used.

[0131] In some implementations, a lateral distance measuring component 35 is further provided on the rotating arm 34 , and the lateral distance measuring component 35 is used to detect the lateral distance from the side wall of the chain 5 to the lateral distance measuring component 35 .

[0132] like Figure 4 As shown, a lateral distance measuring component 35 is also provided on the rotating arm 34, and the lateral distance measuring component 35 is used to detect the lateral distance B from the side wall of the chain 5 to the lateral distance measuring component 35, so that the fixed deflection degree of the chain 5 can be detected by the above method, thereby ensuring the accuracy of detecting the length of the chain 5.

[0133] Exemplarily, the lateral distance measuring component 35 may be a laser distance measuring component.

[0134] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A chain quality detection method based on laser measurement, characterized in that: The method comprises: The chain (5) is pre-tensioned and fixed according to a preset tension by a pre-tensioning component (1), the horizontal driving component (2) drives the roller detection component (3) to move along the length direction of the chain (5), a plurality of rollers (51) are provided on the chain (5), a plurality of first detection positions at which a first detection head (31) on the roller detection component (3) switches from a state not blocked by the roller (51) to a state blocked by the roller (51) are obtained, a plurality of second detection positions at which the first detection head (31) on the roller detection component (3) switches from a state blocked by the roller (51) to a state not blocked by the roller (51) are obtained, and a plurality of second detection positions at which a second detection head (32) on the roller detection component (3) switches from a state not blocked by the roller (51) to a state not blocked by the roller (51) are obtained. The first detection head (31) and the second detection head (32) on the roller detection assembly (3) are switched from a blocked state by the roller (51) to a plurality of first comparison positions in a blocked state by the roller (51), and a plurality of second comparison positions in which the second detection head (32) on the roller detection assembly (3) is switched from a blocked state by the roller (51) to a non-blocked state by the roller (51); wherein the spacing between the detection positions of the first detection head (31) and the second detection head (32) in the length direction of the chain (5) is smaller than the diameter of the roller (51) of the chain (5), and the first detection head (31) and the second detection head (32) both comprise a laser emitting end (301) disposed above the roller (51) of the chain (5) and a laser receiving end (302) disposed below the roller (51) of the chain (5); Determine a plurality of first chain link lengths detected by a first detection head (31), and determine a plurality of second chain link lengths detected by a second detection head (32); wherein a distance between a first detection position and a second detection position spaced apart from a group of second detection positions and a first detection position minus a diameter of a roller (51) is taken as a first chain link length, and a distance between a first comparison position and a second comparison position spaced apart from a group of second comparison positions and a first comparison position minus a diameter of a roller (51) is taken as a second chain link length, a first chain link length and a second chain link length correspond to the same chain link, and a difference in the distance between the first detection position and the first comparison position of the same chain link is less than a diameter of a roller (51) of the chain (5); When the target first link length or the target second link length corresponding to the target first link length is not within the preset link length range, or when the difference between the target first link length and the target second link length corresponding to the target first link length is greater than the preset link difference, the target link corresponding to the target first link length is marked as unqualified link length.

2. The method according to claim 1, characterized in that The method further comprises: Determining multiple first roller diameters detected by a first detection head (31), and determining multiple second roller diameters detected by a second detection head (32); wherein the difference in distance between a group of adjacent first detection positions and a second detection position is the first roller diameter, and the difference in distance between a group of adjacent first comparison positions and a second comparison position is the second roller diameter, a first roller diameter and a second roller diameter correspond to the same roller, and the difference in distance between the first detection position and the first comparison position corresponding to the same roller is smaller than the diameter of the roller (51) of the chain (5); When the target first roller diameter or the target second roller diameter corresponding to the target first roller diameter is not within the preset roller diameter range, or when the difference between the target first roller diameter and the target second roller diameter corresponding to the target first roller diameter is greater than the preset roller diameter difference, the target roller corresponding to the target first roller diameter is marked as having an unqualified roller diameter.

3. The method according to claim 2, characterized in that The method further comprises: Determining a plurality of first roller spacings detected by a first detection head (31), and determining a plurality of second roller spacings detected by a second detection head (32); wherein the difference in distance between a group of adjacent second detection positions and a first detection position is the first roller spacing, and the difference in distance between a group of adjacent second comparison positions and a first comparison position is the second roller spacing, a first roller spacing and a second roller spacing correspond to the same roller spacing, and the difference in distance between the second detection position and the second comparison position corresponding to the same roller spacing is less than the diameter of the roller (51) of the chain (5); When the target first roller spacing or the target second roller spacing corresponding to the target first roller spacing is less than the preset minimum roller spacing, or when the difference between the target first roller spacing and the target second roller spacing corresponding to the target first roller spacing is greater than the preset roller spacing difference, the target roller spacing corresponding to the target first roller spacing is marked as unqualified roller spacing.

4. The method according to claim 3, characterized in that The method further comprises: When the target first roller spacing or the target second roller spacing is greater than the preset maximum roller spacing, the target first roller corresponding to the target first roller spacing or the target second roller spacing is marked as roller missing.

5. The method according to claim 4, characterized in that: The method further comprises: A first total length corresponding to a preset number of chain links and a second total length corresponding to a preset number of chain links are sequentially obtained backward along the length direction of the chain (5), the first total length and the second total length corresponding to the same section of chain (5), and the difference in distance between a first first detection position corresponding to the first total length and a first first comparison position corresponding to the second total length of the same section of chain (5) is less than a diameter of a roller (51) of the chain (5); When the first total length or the second total length is not within the preset total length range, a plurality of chain links corresponding to the first total length or the second total length are marked as having unqualified total link lengths.

6. The method according to claim 5, characterized in that The method further comprises: sequentially obtaining a first total length corresponding to a preset number of chain links and a second total length corresponding to a preset number of chain links backward along the length direction of the chain (5), and further comprising: In the process of detecting the first total length and the second total length, a lateral distance from a side wall of the chain (5) to the lateral distance measuring component (35) along the length direction of the chain (5) is detected by the lateral distance measuring component (35); When the lateral distance is not within the lateral distance range, it is suggested to pre-tension and fix the chain (5) again to ensure that the fixing direction of the chain does not deviate.

7. A chain quality detection device based on laser measurement, characterized in that: A chain quality detection method based on laser measurement as claimed in any one of claims 1 to 6, comprising a pre-tensioning component (1), a horizontal drive component (2), a roller detection component (3) and a calculation component (4), wherein the pre-tensioning component (1) is used to clamp the chain (5) and apply a pre-tensioning force, the horizontal drive component (2) is used to drive the roller detection component (3) to move along the length direction of the chain (5), and the horizontal drive component (2) can detect the position information of the roller detection component (3) in the length direction of the chain (5); A first detection head (31) and a second detection head (32) are provided on the roller detection assembly (3); the first detection head (31) and the second detection head (32) both comprise a laser emitting end (301) provided above the roller (51) of the chain (5) and a laser receiving end (302) provided below the roller (51) of the chain (5); the spacing between the detection positions of the first detection head (31) and the second detection head (32) in the length direction of the chain (5) is smaller than the diameter of the roller (51) of the chain (5); and the horizontal drive assembly (2) and the roller detection assembly (3) are respectively electrically connected to the calculation assembly (4).

8. The chain quality inspection device according to claim 7, characterized in that: A position adjustment component (33) is provided on the roller detection component (3), and the position adjustment component (33) can be used to adjust the spacing between the first detection head (31) and the second detection head (32) in the length direction of the chain (5).

9. The chain quality inspection device according to claim 8, characterized in that: The roller detection assembly (3) comprises a rotatable rotating arm (34), a first detection head (31) and a second detection head (32) being arranged on the rotating arm (34), and the rotating arm (34) can be rotated to a horizontal position to make way for the chain (5), or the rotating arm (34) can be rotated to a vertical position so that the laser emitting ends (301) of the first detection head (31) and the second detection head (32) are located above the roller (51) of the chain (5), and the laser receiving ends (302) of the first detection head (31) and the second detection head (32) are located below the roller (51) of the chain (5).

10. The chain quality inspection device according to claim 9, characterized in that: A lateral distance measuring component (35) is also provided on the rotating arm (34), and the lateral distance measuring component (35) is used to detect the lateral distance from the side wall of the chain (5) to the lateral distance measuring component (35).

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