Roll core measuring device

Abstract

The utility model relates to the technical field of roll core measurement, in particular to a roll core measuring device, which comprises a base, a fixed chuck assembly, a movable chuck assembly, a measuring assembly, a driving assembly and a roll core rotating assembly, and is characterized in that the fixed chuck assembly is fixed on the base, the movable chuck assembly is movably arranged on the base, and the measuring assembly is fixed on the base; the movable chuck assembly can get close to or get away from the fixed chuck assembly in the axial direction of the roll core so as to clamp or release the roll core in a matched mode. The measuring assembly is used for realizing flaw detection and / or geometric accuracy detection of the roll core; the driving assembly is used for driving the measuring assembly to move in the axial direction of the roll core so that the measuring assembly can measure different positions of the roll core. The output end of the roll core rotating assembly is connected with the fixed chuck assembly and used for driving at least part of the fixed chuck assembly to rotate around the axis of the roll core so as to drive the roll core to rotate around the axis of the roll core. According to the invention, stable fixation of the roll core can be realized, detection of different positions of the roll core can be realized, and improvement of the efficiency and accuracy of roll core detection is facilitated.

Description

Technical Field

[0001] This application relates to the field of core measurement technology, and more specifically to a core measurement device. Background Technology

[0002] The geometric accuracy and defects of the core of high-precision roll materials have a significant impact on the safe winding, processing and use of the roll materials. However, there has been no efficient measurement method for the geometric accuracy and defect detection of the core. It can only be manually inspected one by one using general-purpose inspection instruments (such as vernier calipers or micrometers). With the development of the industry and the increase in demand for cores, the use of the same inspection instruments and methods has seriously affected the efficiency and accuracy of core measurement. Utility Model Content

[0003] This application provides a core measuring device that can solve the problems of low efficiency and poor accuracy of existing detection methods.

[0004] To achieve the above-mentioned technical objectives, this application provides a core measuring device, comprising:

[0005] Base;

[0006] A fixed chuck assembly, wherein the fixed chuck assembly is fixed on the base;

[0007] A movable chuck assembly is movably disposed on the base. The movable chuck assembly can move closer to or further away from the fixed chuck assembly along the axial direction of the core to cooperate in clamping or releasing the core.

[0008] A measuring component for detecting defects and / or geometric accuracy of the core;

[0009] A driving assembly for driving the measuring assembly to move along the axial direction of the winding core, so that the measuring assembly measures different positions of the winding core; and

[0010] A core rotating assembly, the output end of which is connected to the fixed chuck assembly, is used to drive at least a portion of the fixed chuck assembly to rotate about the axis of the core, thereby causing the core to rotate about its own axis.

[0011] In some optional embodiments, the fixed chuck assembly includes a fixed chuck with a first conical surface at one end that contacts the core; the movable chuck assembly includes a movable chuck with a second conical surface at one end that contacts the core; the core is in movable contact with the first and second conical surfaces at both ends along its own axial direction; the fixed chuck assembly further includes a fixed chuck base, which is fixed to the base, and the fixed chuck is disposed on the fixed chuck base; the output end of the core rotation assembly is connected to the fixed chuck, enabling the fixed chuck to rotate relative to the fixed chuck base.

[0012] In some optional embodiments, the movable chuck assembly includes a movable chuck, a movable chuck base, a chuck drive, and an auxiliary support. The movable chuck, the chuck drive, and the auxiliary support are all disposed on the movable chuck base. The chuck drive can drive the movable chuck to extend and retract relative to the movable chuck base along the axial direction of the core, for cooperating with the fixed chuck assembly to clamp or release the core. The auxiliary support is disposed below the movable chuck and is used to assist in supporting the core.

[0013] In some alternative embodiments, the base is provided with a first guide rail that extends axially along the winding core, and the movable chuck assembly is movably connected to the first guide rail.

[0014] In some optional embodiments, the movable chuck assembly is provided with a fixing hole, and the base is provided with a plurality of positioning holes and limiting members in sequence along the axial direction of the core. The core measuring device further includes a fixing member, which passes through the fixing hole and the positioning hole in sequence to position the movable chuck assembly or release the positioning of the movable chuck assembly; the limiting member is used to limit the limit position of the movable chuck assembly.

[0015] In some alternative embodiments, the base is provided with a second guide rail that extends axially along the core, and the measuring component is movable along the second guide rail.

[0016] In some alternative embodiments, the drive assembly includes a drive member and a lead screw extending axially along the core, the measuring assembly being movably connected to the lead screw, and the drive member being used to drive the lead screw to rotate, thereby driving the measuring assembly to move axially along the core.

[0017] In some optional embodiments, the fixed chuck assembly is provided with a first proximity switch, and the movable chuck assembly is provided with a second proximity switch. The first proximity switch and the second proximity switch cooperate to limit the movement limit position of the measuring assembly.

[0018] In some optional embodiments, the measuring component includes a geometric accuracy detection element and / or a defect detection element, wherein the geometric accuracy detection element includes at least one of a vernier caliper, a micrometer, and a dial indicator, and the defect detection element includes a visual inspection element and / or an ultrasonic inspection element.

[0019] In some optional embodiments, the core measuring device further includes a human-machine interface unit, the measuring device and the human-machine interface unit being signal-connected, the human-machine interface unit being used to display the data measured by the measuring device;

[0020] And / or, the core measuring device further includes a coding assembly for coding the core with inkjet markings;

[0021] And / or, the core measuring device further includes a loading / unloading assembly for gripping, moving or releasing the core to the fixed chuck assembly.

[0022] The core measuring device according to this embodiment includes a base, a fixed chuck assembly, a movable chuck assembly, a measuring assembly, a driving assembly, and a core rotation assembly. The movable chuck assembly and the fixed chuck assembly work together to achieve stable fixing of the core. The measuring assembly, the driving assembly, and the core rotation assembly work together to automatically detect different positions of the core, which helps to improve the efficiency and accuracy of core detection. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the core measuring device in use in one embodiment;

[0024] Figure 2 This is a schematic diagram of the structure of the core measuring device in one embodiment;

[0025] Figure 3 This is a schematic diagram of the fixed clamp assembly in one embodiment;

[0026] Figure 4 This is a schematic diagram of the structure of the moving chuck assembly at one angle in one embodiment;

[0027] Figure 5 This is a schematic diagram of the structure of the moving base in one embodiment;

[0028] Figure 6 This is a schematic diagram of the moving chuck assembly from another angle in one embodiment;

[0029] Figure 7 This is a schematic diagram of the structure of the measuring component in one embodiment.

[0030] Among them: 1. Core measuring device;

[0031] 10. Base; 11. First guide rail; 12. Second guide rail; 13. Positioning hole; 14. Limiting component;

[0032] 20. Fixed chuck assembly; 21. Fixed chuck; 211. First conical surface; 22. Fixed chuck base; 23. First proximity switch;

[0033] 30. Moving chuck assembly; 31. Moving chuck; 311. Second conical surface; 32. Moving chuck base; 33. Auxiliary support; 34. Fixing hole; 35. Second proximity switch;

[0034] 40. Measuring components; 41. Geometric accuracy detection elements; 42. Defect detection elements;

[0035] 50. Drive assembly; 51. Drive component; 52. Lead screw;

[0036] 60. Human-computer interaction unit;

[0037] A. Roller core;

[0038] X, the axial direction of the core. Detailed Implementation

[0039] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0040] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0041] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages).

[0042] Please see Figures 1 to 7 This application provides a core measuring device 1 for comprehensively inspecting core A from multiple dimensions such as geometric accuracy, surface quality, and cracks. This allows for the classification of core A to be inspected, with qualified core A proceeding to the next process and unqualified core A being directly returned or scrapped. This prevents unqualified core A from entering the next process or the market and affecting its subsequent use. The core measuring device 1 includes a base 10, a fixed chuck assembly 20, a movable chuck assembly 30, a measuring assembly 40, a driving assembly 50, and a core rotation assembly (not shown in the figure).

[0043] Please see Figure 1 and Figure 2 The base 10 serves as the mounting foundation for the entire core measuring device 1. The fixed chuck assembly 20, movable chuck assembly 30, measuring assembly 40, and drive assembly 50 are all mounted on the base 10. The fixed chuck assembly 20 is fixedly mounted on the base 10 and is used to fix one end of the core A along the axial direction X. The movable chuck assembly 30 is movably mounted on the base 10 and can move closer to or further away from the fixed chuck assembly 20 along the axial direction X of the core A to clamp or release the core A. The measuring assembly 40 is used to detect defects and / or geometric accuracy of the core A. The drive assembly 50 is used to drive the measuring assembly 40 to move along the axial direction X of the core A, so that the measuring assembly 40 can measure different positions of the core A. The output end of the core rotation assembly is connected to the fixed chuck assembly 20 and is used to drive at least a portion of the fixed chuck assembly 20 to rotate around the axis of the core A, thereby causing the core A to rotate around its own axis.

[0044] Specifically, when measuring core A, one end of core A is first fixed to the movable chuck assembly 30. The movable chuck assembly 30 is then adjusted to move closer to the fixed chuck assembly 20 along the axial direction X of core A to clamp core A. Then, the driving assembly 50 drives the measuring assembly 40 to move along the axial direction X of core A, and the core A rotation assembly drives core A to rotate around its own axis, thereby completing the all-round defect detection and / or geometric accuracy detection of core A.

[0045] It should be noted that the meaning of "and / or" in defect detection and / or geometric accuracy detection is that one or both can be selected. In other words, the measuring component 40 can perform defect detection alone, geometric accuracy detection alone, or both simultaneously.

[0046] This application achieves the fixation of the core A through the cooperation of the moving chuck assembly 30 and the fixed chuck assembly 20. Through the cooperation of the measuring assembly 40, the driving assembly 50 and the core rotation assembly, the detection of different positions of the core A can be automatically realized, which helps to improve the efficiency and accuracy of core A detection.

[0047] Please see Figure 3 and Figure 4 In some embodiments, the fixed chuck assembly 20 includes a fixed chuck 21, with a first conical surface 211 at the end of the fixed chuck 21 that contacts the core A. The movable chuck assembly 30 includes a movable chuck 31, with a second conical surface 311 at the end of the movable chuck 31 that contacts the core A. The core A has two ends along its own axial direction X that are in movable contact with the first conical surface 211 and the second conical surface 311, respectively. The output end of the core rotation assembly is connected to the fixed chuck 21. The core rotation assembly drives the fixed chuck 21 to rotate, which can drive the core A to rotate and passively drive the movable chuck to rotate. By using the first conical surface 211 and the second conical surface 311, the axial position of the core A can be automatically adjusted during the clamping process, ensuring the coaxiality of the core A, the fixed chuck 21, and the movable chuck. Furthermore, the core A can achieve self-centering during rotation, keeping its axial position constant and always centered. This also reduces vibration during rotation and ensures the stability of the core A during rotation, thereby improving the accuracy and comprehensiveness of the inspection. The core rotation assembly drives the core A fixed chuck 21 to rotate, thereby rotating the core A and facilitating the inspection of the entire surface of the core A. In some specific embodiments, the core rotation assembly includes a rotary motor.

[0048] Please continue reading. Figure 3 In some embodiments, the fixed chuck assembly 20 further includes a fixed chuck base 22, which is fixed on the base 10. The fixed chuck 21 is disposed on the fixed chuck base 22. The output end of the core rotating assembly is connected to the fixed chuck 21, which can drive the fixed chuck 21 to rotate relative to the fixed chuck base 22.

[0049] Please continue reading. Figure 4In some embodiments, the movable chuck assembly 30 includes a movable chuck base 32, a chuck drive (not shown in the figure), and an auxiliary support 33. The movable chuck 31, the chuck drive, and the auxiliary support 33 are all disposed on the movable chuck base 32. The chuck drive can drive the movable chuck 31 to extend and retract relative to the movable chuck base 32 along the axial direction X of the core A, for cooperating with the fixed chuck 21 in the fixed chuck assembly 20 to clamp or release the core A. The auxiliary support 33 is disposed below the movable chuck 31 (according to the placement convention, the base 10 is placed horizontally, and other components are disposed above the base 10). The auxiliary support 33 is used to assist in supporting the core A. In some specific embodiments, the auxiliary support 33 includes an arc-shaped groove that matches the outside of the core A, which can assist in supporting the core A when adjusting the movement of the movable chuck 31, preventing the core A from falling directly onto the base 10 and being damaged. The auxiliary support 33 has an elastic (or soft) structure on the surface that contacts the core A, which can reduce the impact on the surface quality of the core A. The chuck drive includes a combination of a linear motor, a cylinder, an electric cylinder, a rotary motor and a lead screw, a rotary motor and a belt, and a rotary motor and a rack and pinion.

[0050] Of course, in other embodiments, the chuck drive is not a necessary technical feature, and the movable chuck assembly 30 can also be moved manually.

[0051] Please see Figure 5 In some embodiments, the base 10 is provided with a first guide rail 11, which extends along the axial direction X of the core A. The movable chuck assembly 30 is movably connected to the first guide rail 11. The first guide rail 11 guides the movement of the movable chuck assembly 30 to ensure stable movement. The number of first guide rails 11 is not specifically limited, but the first guide rails 11 are provided to effectively guide the movement of the movable chuck assembly 30. In a specific embodiment, two first guide rails 11 are provided, and the movable chuck assembly 30 is provided with two mounting holes (not shown in the figure). The mounting holes extend through the movable chuck assembly 30 along the extension direction of the first guide rail 11 (axial direction X of the core A). The movable chuck assembly 30 and the first guide rail 11 are movably connected through the mounting holes. The shape and size of the first guide rail 11 and the mounting holes are matched. The cross-sectional shape (the cross-section perpendicular to the extension direction of the first guide rail 11) of the second guide rail 12 and the mounting holes can be circular, rectangular, or other irregular structures.

[0052] Please see Figure 5 and Figure 6In some embodiments, the movable chuck assembly 30 is provided with a fixing hole 34, which penetrates the movable chuck base 32. The base 10 has a plurality of positioning holes 13 arranged sequentially along the axial direction X of the core A. The core measuring device 1 also includes a fixing member (not shown in the figure), which passes sequentially through the fixing hole 34 and the positioning holes 13, used to position or release the movable chuck assembly 30. Through the mutual cooperation of the fixing member (not shown in the figure), the positioning holes 13, and the fixing hole 34, the movable chuck assembly 30 can be fixed in different positions of the positioning holes 13, thereby adjusting the distance between the movable chuck assembly 30 and the fixed chuck assembly 20 to complete the clamping, fixing, and releasing of cores A with different extension lengths (lengths along their own axial direction X). The fixing member (not shown in the figure) can be a fixing screw, fixing bolt, or fixing pin, etc., for easy disassembly and installation.

[0053] In some embodiments, the movement to different positioning holes 13 can be done manually. After being manually moved into place, it is fixed by a fastener to achieve clamping of the core A.

[0054] Of course, in other embodiments, the movable chuck assembly 30 can also be moved along the axial direction X of the core A by the chuck drive member described above. After being moved into place, it is fixed to the positioning hole 13 by the fixing member. In this embodiment, the positioning hole 13 is not a necessary technical feature. The movable chuck assembly 30 can be moved into place and fixed by the chuck drive member 51.

[0055] In some embodiments, the base 10 is further provided with a limiting member, which is used to limit the extreme position of the movable chuck assembly 30. The limiting member is disposed on the side of the positioning hole 13 closest to the fixed chuck assembly 20 facing the fixed chuck assembly 20, and can limit and block the movable chuck assembly 30.

[0056] Please continue reading. Figure 5 In some embodiments, a second guide rail 12 is provided on the base 10, extending along the axial direction X of the core A, and the measuring component 40 can move along the second guide rail 12. The second guide rail 12 is provided to limit and guide the movement of the measuring component 40 to ensure smooth and accurate movement of the measuring component 40, thereby helping to improve the accuracy of the detection. The number of second guide rails 12 is not limited; there can be one, two, or three second guide rails 12.

[0057] In some embodiments, the measuring component 40 is provided with a through hole for mounting the second guide rail 12, and the second guide rail 12 and the through hole are movably connected. The shape and size of the second guide rail 12 and the through hole are matched, and the cross-sectional profile (the cross-section perpendicular to the extension direction of the second guide rail 12) of the second guide rail 12 and the through hole can be circular, rectangular or other irregular structure.

[0058] In some embodiments, the drive assembly 50 includes a drive member 51 and a lead screw 52. The lead screw 52 extends along the axial direction X of the core A. The measuring assembly 40 is movably connected to the lead screw 52. The drive member 51 drives the lead screw 52 to rotate, thereby driving the measuring assembly 40 to move along the axial direction X of the core A. The purpose of this application is to drive the measuring assembly 40 to perform linear reciprocating motion along the axial direction X of the core A, and to cooperate with the rotating assembly of the core A to achieve omnidirectional detection of the core A. In other embodiments, the drive assembly 50 may also be a combination of a linear cylinder, a linear motor, a rotary motor and a belt, or a combination of a rotary motor and a rack and pinion. The output ends of the linear cylinder and the linear motor can be directly connected to the measuring assembly 40, and synchronously drive the measuring assembly 40 to move when they operate. The mechanical drive principle of the combination of a rotary motor and a belt, or the combination of a rotary motor and a rack and pinion, is to convert rotational motion into linear motion using mechanical transmission. This mechanical transmission principle belongs to the basic principles of the mechanical field and will not be elaborated on here.

[0059] In some embodiments, the fixed chuck assembly 20 is provided with a first proximity switch 23, and the movable chuck assembly 30 is provided with a second proximity switch 35. The first proximity switch 23 and the second proximity switch 35 cooperate to limit the movement limit position of the measuring assembly 40. Since the measuring assembly 40 moves along the axial direction X of the core A, in order to ensure that the measuring assembly 40 performs omnidirectional detection of the core A and avoid missed detections, the two limit positions of the measuring assembly 40 are the two ends of the core A. Since the two ends of the core A are respectively clamped by the movable chuck assembly 30 and the fixed chuck assembly 20, the fixed chuck assembly 20 is provided with a first proximity switch 23, and the movable chuck assembly 30 is provided with a second proximity switch 35. The first proximity switch 23 and the second proximity switch 35 are used to limit the movement limit position of the measuring assembly 40 in the axial direction X of the core A.

[0060] A proximity switch is a non-contact electronic sensor that can detect the proximity of a target object without mechanical contact and outputs an electrical signal when a preset sensing distance is reached. Based on this, by setting a first proximity switch 23 and a second proximity switch 35, and connecting the first proximity switch 23 and the second proximity switch 35 to a controller, which is signal-connected to the drive assembly 50, when the measuring assembly 40 approaches the first proximity switch 23 or the second proximity switch 35, the controller can receive the corresponding electrical signal and control the drive assembly 50 to rotate forward or backward to achieve movement of the measuring assembly 40 in different directions along the axial direction X of the core A. Thus, throughout the detection process, the measuring assembly 40 is controlled to cyclically reciprocate along the axial direction X of the core A until all positions of the core A are detected.

[0061] Please see Figure 7In some embodiments, the measuring component 40 includes a geometric accuracy detection element 41 and / or a defect detection element 42. The geometric accuracy detection element 41 includes at least one of a vernier caliper, a micrometer, and a dial indicator, and the defect detection element 42 includes a visual inspection element and / or an ultrasonic inspection element.

[0062] It needs to be further explained that the measuring component 40 includes a geometric accuracy detection element 41 and / or a defect detection element 42. This can be understood as setting the geometric accuracy detection element 41 alone to measure the geometric accuracy (including outer circle dimensions, straightness, roundness, length, etc.) of the core A, or setting the defect detection element 42 alone to measure the defects of the core A. These defects include surface defects (including surface marks, surface pits, surface foreign objects, bending, twisting, etc.) and internal defects (including cracks, etc.). Alternatively, the geometric accuracy detection element 41 and the defect detection element 42 can be set simultaneously.

[0063] In embodiments where only geometric accuracy detection element 41 and defect detection element 42 are provided, since geometric accuracy detection element 41 includes at least one of vernier calipers, micrometers, and dial indicators, and defect detection element 42 includes visual inspection elements and / or ultrasonic inspection elements, multiple measurement data in different dimensions can be simultaneously obtained in a single inspection process, greatly improving measurement efficiency. In embodiments where geometric accuracy detection element 41 and defect detection element 42 are simultaneously provided, the variety of measurement results in a single measurement process can be further increased, thereby enhancing the comprehensiveness and accuracy of the inspection of core A.

[0064] In some embodiments, the core measuring device 1 further includes a human-machine interface unit 60. The measuring device and the human-machine interface unit 60 are signal-connected, and the human-machine interface unit 60 is used to display the data measured by the measuring device. Through the human-machine interface unit 60, users can not only view the measurement results, but also perform different position detection, different size core A detection statistics, or different measurement data detection of core A by inputting different operation commands. For example, users can manually start, stop, switch between automatic and manual operation, perform emergency stop, parameter setting, and data output of the core measuring device 1.

[0065] In some embodiments, the core measuring device 1 further includes a coding component (not shown in the figure) for marking the core A with inkjet ink. Specifically, before measuring the core A, each core A can be coded by the coding component. During inspection, the core A is inspected according to the corresponding code, which helps the user to view the inspection result of the corresponding core A based on the code, making it convenient to classify the core A as qualified or unqualified. Of course, the core A can also be coded after inspection, that is, qualified core A is coded so that the next process can view or operate according to the corresponding number, while unqualified core A does not need to be coded and is directly returned to the previous process or scrapped.

[0066] In some embodiments, the core measuring device 1 further includes a loading / unloading assembly (not shown in the figure), which is used to grip, move, or release core A to the fixed chuck assembly 20. This loading / unloading assembly can also move core A out of the fixed chuck assembly 20 and the movable chuck assembly 30 and move it to the next process. The loading / unloading assembly may include a conveyor belt and a robot arm. The conveyor belt is used for transport, and the robot arm grips core A one by one from the conveyor belt, or places core A one by one onto the conveyor belt. Of course, in some embodiments, the conveyor belt is not a necessary technical feature; the robot arm can directly grip core A from a storage location, or place core A in a storage location.

[0067] The above examples illustrate this application only to aid understanding and are not intended to limit its scope. Those skilled in the art to which this application pertains can make various simple deductions, modifications, or substitutions based on the ideas presented.

Claims

1. A core measuring device, characterized in that, include: Base; A fixed chuck assembly, wherein the fixed chuck assembly is fixed on the base; A movable chuck assembly is movably disposed on the base. The movable chuck assembly can move closer to or further away from the fixed chuck assembly along the axial direction of the core to cooperate in clamping or releasing the core. A measuring component for detecting defects and / or geometric accuracy of the core; A driving component is provided for driving the measuring component to move along the axial direction of the core, so that the measuring component can measure different positions of the core. as well as A core rotating assembly, the output end of which is connected to the fixed chuck assembly, is used to drive at least a portion of the fixed chuck assembly to rotate about the axis of the core, thereby causing the core to rotate about its own axis.

2. The core measuring device according to claim 1, characterized in that, The fixed chuck assembly includes a fixed chuck with a first conical surface at one end that contacts the core. The movable chuck assembly includes a movable chuck with a second conical surface at one end that contacts the core. The core is in movable contact with the first and second conical surfaces at both ends along its axial direction. The fixed chuck assembly also includes a fixed chuck base, which is fixed to the base. The fixed chuck is disposed on the fixed chuck base. The output end of the core rotation assembly is connected to the fixed chuck, enabling the fixed chuck to rotate relative to the fixed chuck base.

3. The core measuring device according to claim 1, characterized in that, The movable chuck assembly includes a movable chuck, a movable chuck base, a chuck drive, and an auxiliary support. The movable chuck, the chuck drive, and the auxiliary support are all disposed on the movable chuck base. The chuck drive can drive the movable chuck to extend and retract relative to the movable chuck base along the axial direction of the winding core, for cooperating with the fixed chuck assembly to clamp or release the winding core. The auxiliary support is disposed below the movable chuck and is used to assist in supporting the winding core.

4. The core measuring device according to claim 1, characterized in that, The base is provided with a first guide rail, which extends along the axial direction of the winding core, and the movable chuck assembly is movably connected to the first guide rail.

5. The core measuring device according to claim 1 or 4, characterized in that, The movable chuck assembly is provided with a fixing hole, and the base is provided with a plurality of positioning holes and limiting members in sequence along the axial direction of the core. The core measuring device also includes a fixing member, which passes through the fixing hole and the positioning hole in sequence to position the movable chuck assembly or release the positioning of the movable chuck assembly; the limiting member is used to limit the extreme position of the movable chuck assembly.

6. The core measuring apparatus of claim 1 wherein, The base is provided with a second guide rail, which extends along the axial direction of the winding core, and the measuring component is capable of moving along the second guide rail.

7. The core measuring device according to claim 1 or 6, characterized in that, The drive assembly includes a drive member and a lead screw, the lead screw extending along the axial direction of the winding core, the measuring assembly being movably connected to the lead screw, and the drive member driving the lead screw to rotate, thereby driving the measuring assembly to move along the axial direction of the winding core.

8. The core measuring device according to claim 1, characterized in that, The fixed chuck assembly is provided with a first proximity switch, and the movable chuck assembly is provided with a second proximity switch. The first proximity switch and the second proximity switch cooperate to limit the movement limit position of the measuring assembly.

9. The core measuring device according to claim 1, characterized in that, The measuring assembly includes a geometric accuracy detection element and / or a defect detection element, wherein the geometric accuracy detection element includes at least one of a vernier caliper, a micrometer, and a dial indicator, and the defect detection element includes a visual inspection element and / or an ultrasonic inspection element.

10. The core measuring device according to claim 1, characterized in that, The core measuring device also includes a human-machine interface unit, the measuring device and the human-machine interface unit are signal connected, and the human-machine interface unit is used to display the data measured by the measuring device. And / or, the core measuring device further includes a coding assembly for coding the core with inkjet markings; And / or, the core measuring device further includes a loading / unloading assembly for gripping, moving or releasing the core to the fixed chuck assembly.

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