Auxiliary device for measuring edge straightness of strip

Abstract

The utility model provides a strip edge straightness measurement auxiliary device, which comprises a supporting platform, two mounting blocks, two positioning pins and a laser measurement assembly mounting part, and is characterized in that a straight edge is formed on one side of the supporting platform; the two mounting blocks are arranged on the straight edge, the mounting surfaces of the mounting blocks are flush with the supporting surface of the supporting platform, and the two mounting blocks are arranged on the straight edge at intervals; the two positioning pins are arranged on the mounting surfaces of the two mounting blocks respectively, the distances between the two positioning pins and the straight edge in the plane where the supporting surfaces are located are equal, and when the auxiliary measuring device is used for measuring the straightness of the edge of the strip, the same edge of the strip abuts against the two positioning pins at the same time; the laser measurement assembly installation part is used for installing a laser measurement assembly. According to the strip edge straightness measurement auxiliary device provided by the invention, the limitation of the measurement length, the number of measurement points and the shape of the strip edge can be reduced, and the straightness information of the strip edge can be accurately obtained.

Description

Technical Field

[0001] The present application relates to the technical field of measuring equipment, and in particular to an auxiliary device for measuring the straightness of a strip edge. Background Art

[0002] In the process of using strips (such as copper strips, etc.), the straightness of the strip edge is a relevant dimensional indicator. If the straightness of the strip edge is insufficient, the strip will not be able to pass through the stamping die (commonly known as die jamming) during stamping, thus affecting the efficiency of the stamping process. In severe cases, the stamping die may be damaged. In addition, it will cause errors in the size of the parts after stamping, affecting the yield rate.

[0003] In the related art, the straightness of the edge of a strip is measured mainly by two-point positioning and intermediate detection. Figure 1 is a schematic diagram of a top view angle when a measuring device in the related art measures the straightness of a strip edge. Specifically, Figure 1 When measuring, place both ends of the measuring equipment (with a fixed measuring length, usually 1000mm) against the edge of the strip to be measured, and measure the maximum distance (camber) between a point on the edge of the strip and the measuring equipment to reflect the straightness of the strip.

[0004] However, when measuring with the above-mentioned measuring device, the measuring length is fixed, the measuring points are few, and there is only one point (the point where the edge of the strip is farthest from the measuring device). Moreover, if the edge of the strip is S-shaped or the period of the arched side bend is not the measuring length, the obtained measurement data cannot represent the true straightness information of the edge of the strip. Utility Model Content

[0005] To at least partially solve the above problems, embodiments of the present application provide an auxiliary device for measuring the straightness of a strip edge. The measuring auxiliary device includes a support platform, two mounting blocks, two positioning pins, and a laser measurement component mounting portion. The support platform is used to support the strip to be measured, and a straight edge is formed on one side of the support platform; the two mounting blocks are arranged on the straight edge, and the mounting surfaces of the mounting blocks are flush with the support surface of the support platform. The two mounting blocks are arranged at intervals on the straight edge; the two positioning pins are respectively arranged on the mounting surfaces of the two mounting blocks, and the distances from the two positioning pins to the straight edge in the plane where the support surface is located are equal. When measuring the straightness of the strip edge with the measuring auxiliary device, the same edge of the strip abuts against the two positioning pins at the same time; the laser measurement component mounting portion is used to mount the laser measurement component so that: the laser measurement component is slidably arranged on the side of the support platform with the straight edge, the laser measurement component can slide along the extension direction of the straight edge, the laser measurement component includes a transmitter and a receiver, the transmitter is used to emit laser, and the receiver is used to receive the laser emitted by the transmitter. Among them, the transmitter and the receiver are respectively arranged on both sides of the plane where the support surface is located. When the edge of the strip abuts against the two positioning pins at the same time, the laser emitted by the transmitter intersects the connection line of the contact points of the two positioning pins and the strip edge.

[0006] In some embodiments, the measuring auxiliary device further includes a laser measurement component, and the laser measurement component is arranged on the laser measurement component mounting portion.

[0007] In some embodiments, the laser measurement component mounting portion includes a slider and a support. The slider can slide along the extension direction of the straight edge; the support is arranged on the slider, and the slider can drive the support to move; the transmitter and the receiver are arranged at intervals on the support. The transmitter, the receiver and at least part of the structure of the support form a "C" shape, and the laser emitted by the transmitter to the receiver is perpendicular to the plane where the support surface is located.

[0008] In some embodiments, the measuring auxiliary device further includes a driving component, and the driving component is in transmission connection with the slider to drive the slider to slide along the extension direction of the straight edge.

[0009] In some embodiments, a first step surface and a second step surface are sequentially formed on the side of the support platform with the straight edge. The height of the first step surface is lower than the height of the support surface, and the height of the second step surface is lower than the height of the first step surface; the driving component is arranged on the second step surface; the receiver and / or the transmitter is located above the first step surface.

[0010] In some embodiments, the driving component includes a driving motor and a lead screw. The driving motor is arranged on the second step surface; both ends of the lead screw are rotatably arranged on the second step surface through bearing seats. The extension direction of the lead screw is parallel to the extension direction of the straight edge. The lead screw is in transmission connection with the driving motor, and the slider is in threaded cooperation with the lead screw.

[0011] In some embodiments, the measurement auxiliary device further includes a first display, which is disposed on a support and is used to display position information of the laser measurement component.

[0012] In some embodiments, the measurement auxiliary device further includes a second display, which is disposed on the support platform and is a touch display, and is used to input operation instructions for controlling the measurement auxiliary device and to display straightness information of the strip edge.

[0013] In some embodiments, the measurement auxiliary device also includes a guide rail and a drag chain. The guide rail is connected to the second step surface through a connecting piece. A groove is provided on the guide rail. The extension direction of the groove is parallel to the extension direction of the straight edge. The drag chain is arranged in the groove. A cable is passed through the drag chain. The cable is connected to the laser measurement component.

[0014] In some embodiments, the locating pin is cylindrical.

[0015] The strip edge straightness measurement auxiliary device provided by the embodiment of the present application, when measuring, places the strip to be measured on the support surface, the edges of the strip are respectively abutted against two positioning pins, and the laser measurement component is installed on the laser measurement component installation part, so that the laser measurement component can slide along the extension direction of the straight edge. During the sliding process of the laser measurement component, the laser emitted by the transmitter intersects with the line connecting the contact points of the two positioning pins and the strip edge to scan the strip edge. During the scanning process, the strip edge partially blocks the laser based on its own shape, thereby affecting the light signal received by the receiver. Based on the light signal information on the receiver, the shape information of the strip edge can be obtained, and then the straightness of the strip edge can be obtained. Therefore, the strip edge straightness measurement auxiliary device provided by the embodiment of the present application, in conjunction with the laser measurement component, can obtain the shape information of the strip edge more completely, thereby reducing the restrictions on the measurement length, the number of measurement points and the shape of the strip edge, and more accurately obtain the straightness information of the strip edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. 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.

[0017] Figure 1 is a schematic diagram of a top-down angle when a measuring device in the related art measures the straightness of a strip edge;

[0018] Figure 2is a front view of a strip edge straightness measurement auxiliary device provided in an embodiment of the present application;

[0019] Figure 3 is a side view of a strip edge straightness measurement auxiliary device provided in an embodiment of the present application;

[0020] Figure 4 is a top view of a strip edge straightness measurement auxiliary device provided in an embodiment of the present application.

[0021] The reference numerals are as follows:

[0022] 10. Support platform; 101. Support surface; 102. Straight edge; 103. First step surface; 104. Second step surface; 21. Mounting block; 22. Positioning pin; 31. Transmitter; 32. Receiver; 41. Slider; 42. Mounting seat; 43. Screw; 50. First display; 51. Housing; 60. Second display; 70. Guide rail; 100. Strip.

[0023] It should be understood that the size of each part shown in the accompanying drawings is not drawn according to the actual proportional relationship. In addition, the same or similar reference numerals represent the same or similar components. DETAILED DESCRIPTION

[0024] The technical scheme of the preferred embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection claimed in the present application.

[0025] The words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. The words "include" or "comprise" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] The embodiment of the present application provides a strip edge straightness measurement auxiliary device. It should be noted that in the present application, in the embodiment without a laser measurement component, the measurement auxiliary device can be used in combination with the laser measurement component to measure the straightness information of the strip edge; in the embodiment with a laser measurement component, the measurement auxiliary device can be used to directly measure the straightness information of the strip edge. In the present application, straightness can represent the state in which the straight line element on the part maintains an ideal straight line. Straightness can be measured by a variety of measurement parameters, such as curvature, tolerance relative to the ideal straight line, etc., which is not limited in the present application. The strip can be a wide strip with a smaller aspect ratio, or a narrow strip with a larger aspect ratio. The shape of the strip can be rectangular, and the material of the strip can be metal. For example, the strip can be a copper strip made of copper.

[0027] like Figure 1 , Figure 2 and Figure 3 As shown, the measurement auxiliary device may include a support platform 10, two mounting blocks 21, two positioning pins 22 and a laser measurement component mounting portion.

[0028] The support platform 10 is used to support the strip 100 to be measured. At least part of the surface of the support platform 10 forms a support plane to support the strip 100 to be measured. A straight edge 102 is formed on one side of the support platform 10. Of course, without limitation, other sides of the support platform 10 can also form straight edges. For example, the support platform 10 can be a rectangular platform. In this case, the support platform 10 has a rectangular support surface 101, and the four sides of the support platform 10 all form straight edges. The support platform 10 can be made of marble, metal, plastic, etc., preferably marble. The marble material has a flat and smooth surface, a stable structure, and is easy to process, and is suitable for supporting the strip 100.

[0029] Two mounting blocks 21 are arranged on the straight edge 102, and the mounting surface of the mounting block 21 is flush with the supporting surface 101 of the supporting platform 10, that is, the mounting surface of the mounting block 21 and the supporting surface 101 of the supporting platform 10 are in the same plane, so that when the strip 100 is located on the mounting surface and the supporting surface 101 at the same time, it can contact the mounting surface and the supporting surface 101 at the same time, so as to prevent the strip 100 from warping and affecting the straightness measurement. The two mounting blocks 21 are arranged at intervals on the straight edge 102, and the interval between the two mounting blocks 21 can be used as a measuring space for the laser to pass through.

[0030] The two locating pins 22 are respectively arranged on the mounting surfaces of the two mounting blocks 21. The locating pins 22 can be arranged on the mounting surfaces of the mounting blocks 21 by means of, for example, screwing, welding, bonding, riveting, pinning, etc. The locating pins 22 are used to position the strip 100. That is, the locating pins 22 can be used as a positioning reference for the strip 100 so that the strip 100 is in a predetermined position that can be measured by the laser assembly. The strip 100 can be positioned by abutting its edge to be measured against the locating pins 22. This positioning method can reduce the force generated when fixing the strip 100, thereby reducing the deformation error of the strip 100 caused by the force, and is convenient to operate. The two positioning pins 22 are at an equal distance from the straight edge 102 in the plane where the support surface 101 is located, that is, the distance between the two positioning pins 22 and the straight edge 102 is equal, so that when the strip 100 abuts against the positioning pins 22, the lengths of the straight edge 102 extending from different positions of the edge of the strip 100 are substantially the same. For example, the distance between the positioning pins 22 and the straight edge 102 can be 5.5 mm, and the height of the positioning pins 22 can be 6 mm. It can be understood that the distance between the positioning pins 22 and the straight edge 102 is equal to The height of the positioning pin 22 can be determined based on the strip 100 to be measured. For example, the distance between the positioning pin 22 and the straight edge 102 can be determined based on the empirical value of the straightness of the strip 100 to be measured, so that the edge of the strip 100 can be fully extended from the straight edge 102 of the support platform 10 during measurement; the height of the positioning pin 22 is determined based on the empirical value of the thickness and surface roughness of the strip 100 to be measured, so that the positioning pin 22 can reliably position the strip 100 to be measured. In this embodiment, when the straightness of the edge of the strip 100 is measured by the measurement auxiliary device, the same edge of the strip 100 is simultaneously in contact with two positioning pins 22, for example, a longer side of the strip 100 can be simultaneously in contact with two positioning pins 22. Preferably, the positioning pin 22 may be cylindrical, so that when the strip 100 abuts against the positioning pin 22, its edge may be tangent to the side surface of the cylindrical positioning pin 22. At this time, the strip 100 and the positioning pin 22 have only one contact point, which enables more accurate positioning of the strip 100.

[0031] The laser measurement component installation part is used to install the laser measurement component so that: the laser measurement component is slidably arranged on the side of the support platform 10 with the straight edge 102, the laser measurement component can slide along the extension direction of the straight edge 102, the laser measurement component includes a transmitter 31 and a receiver 32, the transmitter 31 is used to emit laser, and the receiver 32 is used to receive the laser emitted by the transmitter 31, wherein the transmitter 31 and the receiver 32 are respectively arranged on both sides of the plane where the support surface 101 is located, when the edge of the strip 100 abuts against the two positioning pins 22 at the same time, the laser emitted by the transmitter 31 intersects with the line connecting the contact points of the two positioning pins 22 and the edge of the strip 100. In this embodiment, the structure of the laser measurement component installation part is not specifically limited, and it is sufficient that the laser measurement component can achieve the above-mentioned effect when it is installed thereon. It can be understood that the strip 100 is a straight strip, and the edge of the strip 100 is substantially coincident with the line connecting the contact points between the two positioning pins 22 and the edge of the strip 100. Therefore, when the laser measurement assembly is installed on the laser measurement assembly installation portion, by reasonably setting the width of the laser, the laser emitted by the transmitter 31 can partially irradiate the edge of the strip 100 and partially irradiate the receiver 32. When the laser measurement assembly slides along the extension direction of the straight edge 102, the laser emitted by the transmitter 31 can scan the edge of the strip 100, thereby obtaining the shape information of the edge of the strip 100 through the optical signal received by the receiver 32, and further obtaining the straightness information of the edge of the strip 100. The width of the laser (i.e., the size of the laser in the direction perpendicular to the line connecting the contact points between the two positioning pins 22 and the edge of the strip 100) can be determined based on the empirical value of the straightness of the strip 100 to be measured.

[0032] The embodiment of the present application provides an auxiliary device for measuring the straightness of the edge of a strip 100. When measuring, the strip 100 to be measured is placed on a supporting surface 101, and the edges of the strip 100 are respectively abutted against two positioning pins 22, and a laser measurement component is installed on the laser measurement component installation portion to achieve sliding of the laser measurement component along the extension direction of the straight edge 102. During the sliding of the laser measurement component, the laser emitted by the transmitter 31 intersects with the line connecting the contact points of the two positioning pins 22 and the edge of the strip 100, so as to scan the edge of the strip 100. During the scanning process, the edge of the strip 100 partially blocks the laser based on its own shape, thereby affecting the optical signal received by the receiver 32. Based on the optical signal information on the receiver 32, the shape information of the edge of the strip 100 can be obtained, and then the straightness of the edge of the strip 100 can be obtained.

[0033] Exemplarily, when the laser measurement component slides a predetermined measurement distance (the measurement distance can be set based on the program and freely adjusted according to the needs, for example, it can be within the range of 100mm-1000mm), the distance between the point on the edge of the strip 100 and the reference straight line (exemplarily, the reference straight line can be the straight line where the straight edge 102 is located or a straight line parallel to it) can be obtained according to the data collected within the measurement distance. Further, the difference between the maximum value and the minimum value in the distance is calculated, and the difference is used as the indication for measuring the straightness of the edge of the strip 100 within the measurement distance. Preferably, the data can be collected at intervals, and the interval of collecting data can be adjusted. For example, data can be collected once every predetermined distance according to the accuracy requirements to reduce computing power consumption. Exemplarily, the predetermined distance can be 1mm-50mm.

[0034] Therefore, the strip 100 edge straightness measurement auxiliary device provided in the embodiment of the present application, in conjunction with the laser measurement component, can relatively completely obtain the shape information of the strip 100 edge, thereby reducing the restrictions on the measurement length, the number of measurement points, and the shape of the strip 100 edge, and relatively accurately obtain the straightness information of the strip 100 edge. The strip 100 edge straightness measurement auxiliary device provided in the embodiment of the present application can provide a freer measurement distance and a greater number of measurement points, can make the straightness situation in a fixed measurement distance more refined, can identify the S-shaped edge within a fixed length, and is more conducive to finding the maximum deviation of the straightness.

[0035] In some embodiments, the measurement auxiliary device further includes a laser measurement component, which is disposed on the laser measurement component mounting portion. In this embodiment, the laser measurement component is a part of the measurement auxiliary device, and the measurement auxiliary device can be directly used to measure the edge straightness of the strip 100. It should be noted that the transmitter 31 in the laser measurement component can be located above the plane where the support surface 101 is located, and the receiver 32 can be located below the plane where the support surface 101 is located; or the transmitter 31 in the laser measurement component can be located below the plane where the support surface 101 is located, and the receiver 32 can be located above the plane where the support surface 101 is located.

[0036] In some embodiments, the laser measurement component mounting portion includes a slider 41 and a support 42. The slider 41 can slide along the extension direction of the straight edge 102. The support 42 is disposed on the slider 41, and the slider 41 can drive the support 42 to move. The emitter 31 and the receiver 32 are spaced apart and disposed on the support 42. At least a part of the structure of the emitter 31, the receiver 32 and the support 42 forms a "C" shape, and the laser emitted by the emitter 31 to the receiver 32 is perpendicular to the plane where the support surface 101 is located. In this embodiment, the slider 41 can be realized to slide along the extension direction of the straight edge 102 by means of, for example, a lead screw structure, a belt structure, a chute and rail structure, etc. The support 42 can be disposed on the slider 41 by means of, for example, screwing, bonding, clamping, integral molding, etc., so that the support 42 can move together with the slider 41. The present application does not limit the specific shape of the support 42, as long as it can form a "C" shape with the emitter 31 and the receiver 32. Exemplarily, the support 42 can be columnar, and the emitter 31 and the receiver 32 are distributed on the support 42 along the axial direction of the column. The emitter 31 and / or the receiver 32 can also be disposed on the support 42 by means of screwing, bonding, clamping, etc. At least a part of the structure of the emitter 31, the receiver 32 and the support 42 forms a "C" shape. When measuring straightness, the edge of the strip 100 can pass through the notch of the "C" shape and extend into the "C" shape for easy measurement. The laser emitted by the emitter 31 to the receiver 32 is perpendicular to the plane where the support surface 101 is located, which can reduce the influence of the thickness of the strip 100 on the measurement result and improve the measurement accuracy.

[0037] In some embodiments, the measurement auxiliary device further includes a driving component, and the driving component is in transmission connection with the slider 41 to drive the slider 41 to slide along the extension direction of the straight edge 102. In this embodiment, driving the slider 41 to slide through the driving component facilitates automatic control and improves the control accuracy at the same time. Of course, in other embodiments, the slider 41 can also be manually slid, and the present application does not limit this.

[0038] In some embodiments, a first step surface 103 and a second step surface 104 are sequentially formed on one side of the support platform 10 having the straight edge 102. The height of the first step surface 103 is lower than the height of the support surface 101, and the height of the second step surface 104 is lower than the height of the first step surface 103. The driving component is disposed on the second step surface 104. The receiver 32 and / or the emitter 31 is located above the first step surface 103. In this embodiment, this setting method can make the slider 41 and the driving device located on the lower second step surface 104, and a space for the emitter 31 or the receiver 32 to move can be formed above the first step surface 103, so that the layout is more reasonable and orderly, and the movement interference between different components can be prevented.

[0039] In some embodiments, the drive assembly includes a drive motor and a screw 43, and the drive motor is arranged on the second step surface 104; the two ends of the screw 43 are rotatably arranged on the second step surface 104 through a bearing seat, the extension direction of the screw 43 is parallel to the extension direction of the straight edge 102, the screw 43 is connected to the drive motor by transmission, and the slider 41 is threadedly engaged with the screw 43. In this embodiment, the sliding of the slider 41 is achieved by the screw structure, which can improve the control accuracy and make the measured distance more accurate. For example, the drive motor can be a servo motor, and the output shaft of the drive motor and the screw are connected by a coupling. In some embodiments, the measurement auxiliary device also includes a guide rail 70 and a drag chain, the guide rail 70 is connected to the second step surface 104 through a connector, and a groove is provided on the guide rail 70, and the extension direction of the groove is parallel to the extension direction of the straight edge 102; the drag chain is arranged in the groove, and a cable is passed through the drag chain, and the cable is connected to the laser measurement assembly. It can be understood that the laser measurement component needs to frequently perform linear motion during measurement, and the cable will move with the laser measurement component. Therefore, in this embodiment, by setting a drag chain, the bending degree of the cable connected to the laser measurement component can be reduced, thereby increasing the service life of the cable.

[0040] In some embodiments, the measurement auxiliary device further includes a first display 50, which is disposed on the support 42, and the first display 50 is used to display the position information of the laser measurement assembly. The position information of the laser measurement assembly can be determined based on the number of revolutions of the drive motor, or can be measured by an additionally disposed distance sensor, which is not limited in the present application. In this embodiment, by arranging the first display 50 on the support 42, the position starting point and the movement distance of the laser measurement assembly can be more conveniently observed or controlled. In some embodiments, a shell 51 can also be disposed outside the first display 50, and the shell 51 is used to protect the first display 50. In some embodiments, the measurement auxiliary device further includes a second display 60, which is disposed on the support platform 10, and the second display 60 is a touch display, and the second display 60 is used to input operating instructions for controlling the measurement auxiliary device and display the straightness information of the edge of the strip 100. In this embodiment, the measurement auxiliary device can be operated and controlled through the second display 60, such as controlling the movement speed and direction of the slider 41, setting the measurement distance, setting the measurement interval, starting and stopping the measurement, etc., and the data acquisition information and the maximum value, minimum value and straightness information obtained after data processing can be directly read on the second display 60.

[0041] In the actual use of the measuring auxiliary device, the strip 100 can be placed on the supporting surface 101, and one edge of the strip 100 can be attached to the two positioning pins 22. The starting value is confirmed by the laser measuring component, and then the laser measuring component moves in a straight line. The device records the measured data, calculates the gap between the edge and the positioning point within a certain distance, and records the final straightness value. Different measuring lengths can be selected according to needs and the corresponding straightness can be calculated.

[0042] Based on the above-mentioned embodiments of the present application, in the absence of explicit negation or conflict, the technical features of one embodiment may be beneficially combined with one or more other embodiments.

[0043] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are only for illustration and not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A strip edge straightness measurement auxiliary device, characterized in that: Comprising: A support platform for supporting a strip to be measured, with a straight edge formed on one side of the support platform; Two mounting blocks disposed on the straight edge, the mounting surfaces of the mounting blocks being flush with the support surface of the support platform, and the two mounting blocks being spaced apart on the straight edge; Two positioning pins respectively disposed on the mounting surfaces of the two mounting blocks, the distances of the two positioning pins from the straight edge being equal in the plane where the support surface is located. When the straightness of the edge of the strip is measured by the measurement auxiliary device, the same edge of the strip abuts against the two positioning pins simultaneously; A laser measurement component mounting portion for mounting a laser measurement component such that: the laser measurement component is slidably disposed on the side of the support platform having the straight edge, the laser measurement component can slide along the extension direction of the straight edge, the laser measurement component includes a transmitter and a receiver, the transmitter is used for emitting laser, and the receiver is used for receiving the laser emitted by the transmitter. Among them, the transmitter and the receiver are respectively disposed on both sides of the plane where the support surface is located. When the edge of the strip abuts against the two positioning pins simultaneously, the laser emitted by the transmitter intersects the line connecting the contact points of the two positioning pins and the strip edge.

2. The strip edge straightness measurement auxiliary device according to claim 1, characterized in that: Further comprising the laser measurement component, which is disposed on the laser measurement component mounting portion.

3. The strip edge straightness measurement auxiliary device according to claim 2, characterized in that: The laser measurement component mounting portion includes: A slider capable of sliding along the extension direction of the straight edge; A support disposed on the slider, and the slider can drive the support to move; The transmitter and the receiver are spaced apart and disposed on the support. At least part of the structures of the transmitter, the receiver and the support form a "C" shape, and the laser emitted by the transmitter to the receiver is perpendicular to the plane where the support surface is located.

4. The strip edge straightness measurement auxiliary device according to claim 3, characterized in that: Further comprising: A driving component in transmission connection with the slider to drive the slider to slide along the extension direction of the straight edge.

5. The strip edge straightness measurement auxiliary device according to claim 4, wherein On the side of the support platform having the straight edge, a first step surface and a second step surface are sequentially formed. The height of the first step surface is lower than the height of the support surface, and the height of the second step surface is lower than the height of the first step surface; The driving component is disposed on the second step surface; The receiver and / or the transmitter is located above the first step surface.

6. The strip edge straightness measurement auxiliary device according to claim 5, characterized in that: The driving component includes: A driving motor disposed on the second step surface; A lead screw, the two ends of which are rotatably disposed on the second step surface through bearing seats. The extension direction of the lead screw is parallel to the extension direction of the straight edge. The lead screw is in transmission connection with the driving motor, and the slider is in threaded fit with the lead screw.

7. The strip edge straightness measurement auxiliary device according to claim 3, characterized in that: Further comprising: A first display, wherein the first display is disposed on the support, and the first display is used to display position information of the laser measurement component.

8. The strip edge straightness measurement auxiliary device according to claim 1, characterized in that: Also includes: The second display is arranged on the supporting platform, the second display is a touch display, and the second display is used to input operation instructions for controlling the measurement auxiliary device and to display the straightness information of the edge of the strip.

9. The strip edge straightness measurement auxiliary device according to claim 5, characterized in that: Also includes: A guide rail, the guide rail is connected to the second step surface through a connecting piece, the guide rail is provided with a groove, and the extending direction of the groove is parallel to the extending direction of the straight edge; A drag chain is arranged in the groove, a cable is passed through the drag chain, and the cable is connected to the laser measurement component.

10. The strip edge straightness measurement auxiliary device according to claim 1, characterized in that: The positioning pin is cylindrical.

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