Coaxiality testing fixture

By designing a coaxiality detector with fixing and detection components, the first fixing member drives the measured part to rotate, and the detector detects the contact part in the second or third direction, the detection accuracy of the existing coaxiality detector is solved The problem of insufficient results enables higher detection accuracy and accuracy.

CN222258092UActive Publication Date: 2024-12-27WANGKAI MEDICAL TECH (SHANGHAI) CO LTD
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Patent Information

Application Number
CN202420377180.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-02-28
Publication Date
2024-12-27
Estimated Expiration
2034-02-28

AI Technical Summary

Technical Problem

The existing coaxiality detection tools have limited inspection accuracy and are difficult to meet product quality requirements.

Method used

A coaxiality detector including a fixing component and a detection component is designed. The first fixing component drives the measured part to rotate, and the detector abuts the measured part in the second or third direction, and detects the contact part of the measured part. The target parameter calculates the maximum and minimum jumps on its circumference, thereby improving detection accuracy.

Benefits of technology

Through this design, the average jumping amount of the measured part can be accurately detected, the accuracy of coaxiality detection can be improved, and the position of the measured part can be adjusted through initial state detection to ensure that the detecting part is parallel to its contact surface and improve the detection accuracy.

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Abstract

The coaxiality detection tool comprises a fixing assembly and a detection assembly, the fixing assembly comprises a first fixing piece used for fixing a detected piece, at least part of the first fixing piece is rotatably arranged around a first axis extending in a first direction, and a detection piece of the detection assembly can abut against the detected piece in a second direction or a third direction. When the first fixing piece drives the detected piece to rotate, the detection piece can detect the maximum jerk value and the minimum jerk value of the detected piece on the corresponding circumference, so that the average jerk value of the detected piece can be calculated by detecting the maximum jerk value and the minimum jerk value of the detected piece at different circumferences in the first direction. And the coaxiality of the measured piece is obtained. Moreover, before the first fixing piece drives the detected piece to rotate, whether the contact surface of the detected piece in the initial state and the detection piece tends to extend in the first direction or not can be judged by moving the detection assembly in the first direction, so that the position of the detected piece can be adjusted in time, and the detection precision of coaxiality detection is improved.
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Description

Technical Field

[0001] The present application belongs to the field of detection technology, and in particular relates to a coaxiality inspection tool. Background Art

[0002] Coaxiality is one of the important criteria for measuring the quality of cylindrical products. Before a product is put into use, it is usually necessary to test the coaxiality of the product with a specific coaxiality inspection tool to ensure that its coaxiality error is within the qualified range. However, the detection accuracy of existing coaxiality inspection tools is limited and it is difficult to meet product quality requirements. Utility Model Content

[0003] The embodiment of the present application provides a coaxiality inspection tool, which can improve the inspection accuracy.

[0004] In a first aspect, an embodiment of the present application provides a coaxiality gauge, comprising a fixing component and a detecting component, wherein the fixing component comprises a first fixing component for fixing a workpiece to be measured, and at least a portion of the first fixing component is rotatably arranged around a first axis extending in a first direction; the detecting component comprises a detecting component, and the detecting component is used to abut the workpiece to be measured along a second direction or a third direction, and detect target parameters of a contact portion between the workpiece to be measured and the detecting component, and the detecting component is movably arranged along a first direction, the first direction is respectively perpendicular to the second direction and the third direction, and the second direction is arranged to intersect with the third direction.

[0005] In some embodiments, the fixing assembly further includes a second fixing member for fixing the measured object, and the first fixing member and the second fixing member are spaced apart along the first direction.

[0006] In some embodiments, the first fixing member and / or the second fixing member are movably disposed along the first direction.

[0007] In some embodiments, the first fixing member includes a first base and a first ejector pin disposed on the first base, the first ejector pin is rotatably disposed around a first axis extending in a first direction, and a first needle portion is disposed on a side of the first ejector pin close to the second fixing member along the first direction, for supporting an end portion of the piece under test; and / or, the second fixing member includes a second base and a second ejector pin disposed on the second base, the second ejector pin is disposed on a side of the first fixing member along the first direction, for supporting an end portion of the piece under test.

[0008] In some embodiments, at least one of the first ejector pin and the second ejector pin is movably disposed along the second direction and / or the third direction.

[0009] In some embodiments, the second base includes a base body and a driving component arranged on the base body, the driving component includes a first adjustment portion connected to the second ejector pin, and at least a portion of the first adjustment portion is movably arranged along the second direction; and / or, the driving component includes a second adjustment portion connected to the second ejector pin, and at least a portion of the second adjustment portion is movably arranged along the third direction.

[0010] In some embodiments, the first fixing member includes a gear set and a fixing portion, the fixing portion is used to fix the measured object, the gear set includes an input gear and an output gear that mesh with each other, the input gear and the output gear are both rotatably arranged around a third axis parallel to the first axis, and the fixing portion is coaxially arranged with the output gear.

[0011] In some embodiments, there are multiple detection components, and the multiple detection components are arranged in sequence along the first direction.

[0012] In some embodiments, the detection assembly further includes a detection base movably disposed along a first direction, and the detection member is movably disposed on the detection base along a second direction.

[0013] In some embodiments, the detection assembly further includes a universal connector, and the detection member is connected to the detection base via the universal connector.

[0014] In the coaxiality inspection tool provided in the embodiment of the present application, the fixing assembly includes a first fixing assembly for fixing the workpiece to be measured, and at least a portion of the first fixing assembly is rotatably arranged around a first axis extending in a first direction. The detection member of the detection assembly can abut the workpiece to be measured along a second direction or a third direction, and is used to detect target parameters of the contact portion between the workpiece to be measured and the detection member. Therefore, when the first fixing member drives the workpiece to be measured to rotate, the detection member can detect the maximum runout and minimum runout of the workpiece to be measured on the corresponding circumference, so that by detecting the maximum runout and minimum runout of the workpiece to be measured at different circumferences along the first direction, the average runout of the workpiece to be measured can be calculated, that is, the coaxiality of the workpiece to be measured can be obtained. Furthermore, before the first fixing member drives the measured piece to rotate, the detection component is moved along the first direction, and the detection member is used to detect the target parameters of each contact portion of the measured piece along the first direction in the initial state. It can be determined whether the contact surface of the measured piece in contact with the detection member in the initial state tends to extend along the first direction, so as to facilitate timely adjustment of the position of the measured piece to ensure that the reference axis of the measured piece parallel to the contact surface tends to extend along the first direction, so that the detection member can abut the measured piece in a direction perpendicular to the reference axis of the measured piece, thereby improving the detection accuracy of the coaxiality detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 is a schematic diagram of the structure of a coaxiality inspection tool provided in some embodiments of the present application;

[0017] Figure 2 is a schematic structural diagram of a second fixing member provided in some embodiments of the present application;

[0018] Figure 3 is a schematic structural diagram of a first fixing member provided in some embodiments of the present application;

[0019] Figure 4 It is a schematic diagram of the structure of the detection component provided in some embodiments of the present application.

[0020] Tag Name:

[0021] The fixing assembly 10; the first fixing member 11; the first base 111; the first ejector pin 112; the gear set 113; the fixing portion 114; the input gear 115; the output gear 116; the second fixing member 12; the second base 121; the second ejector pin 122; the base body 123; the first connecting portion 124; the second connecting portion 125; the push rod 126; the third connecting portion 127; the pushing portion 128; the second slide rail 13; the second slider 14; the first sub-slider 141; the second sub-slider 142; the detecting assembly 20; the detecting member 21; the detecting base 22; the base body 221; the guide rod 222; the universal connecting member 23; the first direction X; the second direction Y; the third direction Z. DETAILED DESCRIPTION

[0022] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only configured to explain the present application and are not configured to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0023] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0024] Figure 1 It is a schematic diagram of the structure of a coaxiality gauge provided in some embodiments of the present application.

[0025] like Figure 1 As shown, in the first aspect, an embodiment of the present application provides a coaxiality gauge, including a fixing component 10 and a detection component 20, the fixing component 10 includes a first fixing component 11 for fixing a workpiece 30, and at least a portion of the first fixing component 11 is rotatably arranged around a first axis extending in a first direction X; the detection component 20 includes a detection component 21, the detection component 21 is used to abut the workpiece 30 along a second direction Y or a third direction Z, and detect target parameters of a contact portion between the workpiece 30 and the detection component 21, the detection component 20 is movably arranged along the first direction X, the first direction X is respectively perpendicular to the second direction Y and the third direction Z, and the second direction Y is arranged to intersect with the third direction Z.

[0026] It should be clear that the tested object 30 can be various cylindrical structures. For example, the tested object 30 can be a medical device such as a medical sheath, or a structure in other fields, which is not limited in this embodiment.

[0027] The first direction X may be the axial direction of the tested object 30, the second direction Y may be a radial direction of the tested object 30, and the third direction Z may be another radial direction of the tested object 30. It is understandable that when testing the coaxiality of the tested object 30, the first direction X may be a direction parallel to the horizontal direction, the second direction Y may be a vertical direction, and the third direction Z may be another direction parallel to the horizontal direction and perpendicular to the first direction X, so as to facilitate the detection of the tested object 30.

[0028] The first fixing member 11 can fix the measured object 30 by means of a structure such as a clamp or the like, or can fix the measured object 30 by other means, which is not limited in this embodiment. The first axis extends along the first direction X, and at least a portion of the first fixing member 11 can rotate around the first axis, thereby driving the measured object 30 to rotate around the first axis. Since the detection member 21 abuts against the measured object 30 along the second direction Y or the third direction Z, and the detection member 21 can detect the target parameters of the contact portion between the measured object 30 and the detection member 21, during the rotation of the measured object 30, the detection member 21 can detect the target parameters of each contact portion of the measured object 30 on the corresponding circumference, and then calculate the maximum runout and minimum runout of the measured object 30 at the corresponding circumference. Subsequently, the detection assembly 20 is moved along the first direction X, and the maximum runout and minimum runout of the measured object 30 at different circumferences along the first direction X are detected by the detection member 21, and then the coaxiality of the measured object 30 is obtained by calculating the average runout value of the measured object 30 at each circumference. It should be clarified that the target parameter of the contact part between the tested piece 30 and the detection piece 21 can be a radius parameter of the contact part relative to the reference axis, or a runout parameter of one contact part of the tested piece 30 on a circle relative to another contact part, or a coordinate parameter of the contact part along the second direction Y or an overall coordinate parameter along the first direction X, the second direction Y and the third direction Z. This embodiment does not make any actual limitation, and it is only necessary to be able to calculate the coaxiality of the tested piece 30 based on the target parameter.

[0029] It can be understood that the reference axis of the measured piece 30 can pass through the center of the circle with the smallest diameter in the measured piece 30, and can be parallel to the side surface of the measured piece 30 along the second direction Y and / or the third direction Z. When the detection piece 21 abuts against the measured piece 30 in a direction perpendicular to the reference axis of the measured piece 30, the detection accuracy of the detection piece 21 can be guaranteed. Therefore, in this embodiment, before the first fixing member 11 drives the tested piece 30 to rotate, the detection component 20 is moved along the first direction X, and the target parameters of each contact portion of the tested piece 30 along the first direction X in the initial state are detected by the detection member 21, and it is compared whether each contact portion is located at the same height along the second direction Y, so as to judge whether the contact surface of the tested piece 30 in the initial state that contacts the detection member 21 tends to extend along the first direction X, so as to facilitate timely adjustment of the position of the tested piece 30, and ensure that the reference axis parallel to the contact surface in the tested piece 30 tends to extend along the first direction X, so that the detection member 21 can abut the tested piece 30 in a direction perpendicular to the reference axis of the tested piece 30, thereby improving the detection accuracy of coaxiality detection.

[0030] It should be noted that the initial state is the static state of the tested object 30 before the first fixing member 11 drives the tested object 30 to rotate. In this embodiment, the tested object 30 can be directly moved to adjust its position, or the position of the tested object 30 can be adjusted by moving the first fixing member 11 or other structures in the fixing assembly 10.

[0031] Optionally, the coaxiality inspection fixture may further include a first slide rail and a first slider slidably disposed on the first slide rail, the first slide rail extends along a first direction X, the detection component 20 is connected to the first slider, and the first slider moves relative to the first slide rail along the first direction X, with a simple structure and low cost.

[0032] Optionally, the detection component 21 may be any one of detection devices such as a micrometer, a dial gauge, etc., which is not limited in this embodiment.

[0033] like Figure 1 As shown, in some embodiments, the fixing assembly 10 also includes a second fixing member 12 for fixing the piece under test 30, and the first fixing member 11 and the second fixing member 12 are arranged at intervals along the first direction X, so that the piece under test 30 is fixed by the first fixing member 11 and the second fixing member 12 at the same time, which can improve the stability of the piece under test 30 to ensure the detection accuracy.

[0034] The first fixing member 11 and the second fixing member 12 may have the same fixing structure or different fixing structures, which is not limited in this embodiment.

[0035] In some embodiments, the first fixing member 11 and / or the second fixing member 12 are movably arranged along the first direction X, so that the fixing position of the first fixing member 11 and / or the second fixing member 12 can be adjusted along the first direction X, which facilitates the assembly of the measured object 30 with the first fixing member 11 and the second fixing member 12 and improves the stability of the measured object 30.

[0036] Please continue to refer to Figure 1 Optionally, the fixing assembly 10 may further include a second slide rail 13 and a second slider 14 slidably disposed on the second slide rail 13, the second slide rail 13 extends along the first direction X, the first fixing member 11 and / or the second fixing member 12 may be connected to the second slider 14, and move along the first direction X relative to the second slide rail 13 through the second slider 14.

[0037] Optionally, the second slider 14 may include a first sub-slider 141 and a second sub-slider 142 respectively slidably arranged on the second slide rail 13, the first fixing member 11 is arranged on the first sub-slider 141, and the second fixing member 12 is arranged on the second sub-slider 142, so that the first fixing member 11 and the second fixing member 12 are respectively driven to move by the first sub-slider 141 and the second sub-slider 142.

[0038] like Figure 1 As shown, in some embodiments, the first fixing member 11 includes a first base 111 and a first ejector pin 112 disposed on the first base 111. The first ejector pin 112 is rotatably disposed around a first axis extending in a first direction X. A first needle portion is disposed on one side of the first ejector pin 112 close to the second fixing member 12 along the first direction X, for supporting an end portion of the test piece 30. The structure is simple and the assembly is convenient.

[0039] And / or, the second fixing member 12 includes a second base 121 and a second ejector pin 122 arranged on the second base 121. The second ejector pin 122 is provided with a second needle portion on one side of the first fixing member 11 along the first direction X, which is used to support the end of the measured object 30. The structure is simple and the assembly is convenient.

[0040] It should be clear that the first needle portion and the second needle portion are in a needle tip shape on the side facing the object under test 30 to fix the object under test 30. When the first fixing member 11 includes the first ejector pin 112 and the second fixing member 12 includes the second ejector pin 122, the first ejector pin 112 and the second ejector pin 122 can be arranged correspondingly along the first direction X to be respectively supported at both ends of the object under test 30 along the first direction X.

[0041] In some embodiments, at least one of the first ejector pin 112 and the second ejector pin 122 is movably arranged along the second direction Y and / or the third direction Z. Therefore, when the surface of the tested piece 30 in contact with the detection piece 21 in the initial state does not tend to extend along the first direction X, the position of the tested piece 30 can be indirectly adjusted by adjusting the position of the first ejector pin 112 and / or the second ejector pin 122 along the second direction Y and / or the third direction Z. Compared with directly moving the tested piece 30, there is no need to disassemble and reassemble the tested piece 30, thereby reducing the difficulty of operation and improving the operation efficiency.

[0042] Figure 2 It is a schematic diagram of the structure of the second fixing member provided in some embodiments of the present application.

[0043] like Figure 2 As shown, in some embodiments, the second base 121 includes a base body 123 and a driving component disposed on the base body, the driving component includes a first adjustment portion connected to the second ejector 122, at least a portion of the first adjustment portion is movably disposed along the second direction Y, thereby driving the second ejector 122 to move along the second direction Y, and adjusting the position of the second ejector 122 along the second direction Y, with a simple structure and convenient operation. And / or, the driving component includes a second adjustment portion connected to the second ejector 122, at least a portion of the second adjustment portion is movably disposed along the third direction Z, thereby driving the second ejector 122 to move along the third direction Z, and adjusting the position of the second ejector 122 along the third direction Z, with a simple structure and convenient operation.

[0044] It should be clarified that when the driving component includes a first adjustment part and a second adjustment part at the same time, the first adjustment part can be set on the base body 123, and the second adjustment part can be set on the first adjustment part. The first adjustment part is connected to the second ejector pin 122 through the second adjustment part to drive the second ejector pin 122 to move.

[0045] In some embodiments, the first adjustment portion includes an abutment portion, a first connection portion 124 and a second connection portion 125, the first connection portion 124 is arranged on the base body 123, the second connection portion 125 is movably arranged on the first connection portion 124 along the second direction Y, the abutment portion is rotatably arranged around a second axis extending in the first direction X or the third direction Z, and is used to drive the second connection portion 125 to move along the second direction Y, and the second ejector pin 122 is arranged on the second connection portion 125.

[0046] The second axis extends along the first direction X or the third direction Z. The abutting portion may include a rotation shaft and a first pusher portion disposed on the outer circumference of the rotation shaft, the rotation shaft extends along the first direction X or the third direction Z, and the first pusher portion is used to abut against the second connecting portion 125 . The abutting portion can be located at a side of the second connecting portion 125 close to the first connecting portion 124 along the second direction Y. Since the second connecting portion 125 is movably arranged on the first connecting portion 124 along the second direction Y, when the rotating shaft of the abutting portion rotates around the second axis toward the preset rotating direction, its first pushing sub-portion can abut against the second connecting portion 125 and push the second connecting portion 125 to move toward the side away from the first connecting portion 124, thereby driving the second ejector 122 arranged on the second connecting portion 125 to move along the second direction Y toward the side away from the first connecting portion 124. After the second connecting portion 125 is pushed to the limit position, if the rotating shaft continues to be rotated in the preset rotating direction or the rotating shaft is controlled to be reset in the opposite direction of the preset rotating direction, the second connecting portion 125 can move along the second direction Y toward the side close to the first connecting portion 124, thereby driving the second ejector 122 to move along the second direction Y toward the side close to the first connecting portion 124. The structure is simple and the transmission is stable.

[0047] It is understandable that the first connection portion 124 may be connected to the base body 123 via a fastener, or may be connected to the base body 123 via other methods, which is not limited in this embodiment.

[0048] like Figure 2 As shown, in some embodiments, the first adjusting portion further includes a push rod 126, which is threadedly connected to the first connecting portion 124 and is used to push the abutting portion to rotate around the second axis.

[0049] When the second axis extends along the first direction X, the push rod 126 can extend along the third direction Z. When the push rod 126 is rotated, the push rod 126 can move along the third direction Z. When the second axis extends along the third direction Z, the push rod 126 can extend along the first direction X. When the push rod 126 is rotated, the push rod 126 can move along the first direction X.

[0050] The abutment portion may also include a second pushing sub-portion arranged on the outer peripheral side of the rotating shaft. The first pushing sub-portion and the second pushing sub-portion are arranged at a radial interval along the rotating shaft. The abutment portion is located on one side of the push rod 126 along the first direction X or the third direction Z. When the push rod 126 moves along the first direction X or the third direction Z, the push rod 126 can abut against the second pushing sub-portion, and push the rotating shaft and the first pushing sub-portion to rotate through the second pushing sub-portion. The structure is simple and the operation is convenient.

[0051] And / or, the second base 121 also includes a compression spring, which is compressively arranged between the first connection part 124 and the second connection part 125. Therefore, the elastic force of the compression spring can push the second connection part 125 to a certain extent along the second direction Y toward the side away from the first connection part 124, so as to reduce the difficulty of the abutment part pushing the second connection part 125. At the same time, the compression spring can also play an elastic buffering role when the second connection part 125 is reset along the second direction Y toward the side close to the first connection part 124, so as to avoid rigid contact between the first connection part 124 and the second connection part 125 and thus cause damage.

[0052] like Figure 2 As shown, optionally, the second adjusting portion includes a third connecting portion 127, a fourth connecting portion and a pushing portion 128, the third connecting portion 127 and the fourth connecting portion are respectively arranged on the second connecting portion 125, the fourth connecting portion is located on one side of the third connecting portion 127 along the third direction Z, and is movably arranged along the third direction Z relative to the third connecting portion 127, the second ejector pin 122 is connected to the fourth connecting portion, and the pushing portion 128 extends along the third direction Z, passes through the third connecting portion 127, and is connected to the fourth connecting portion. Therefore, the fourth connecting portion can be driven to move along the third direction Z by pushing and pulling the pushing portion 128, thereby driving the second ejector pin 122 to move along the third direction Z, the structure is simple, and the transmission is stable.

[0053] In some embodiments, the second fixing member 12 further includes a fine-tuning spring, and the second ejector pin 122 is connected to the first base 111 via the fine-tuning spring. The fine-tuning spring is retractably arranged along the first direction X, thereby driving the second ejector pin 122 to move along the first direction X to facilitate the assembly of the test piece 30.

[0054] Specifically, the fine-tuning spring can be extended or contracted along the first direction X. When assembling the measured object 30, the positions of the first fixing member 11 and the second fixing member 12 can be adjusted first, so that the first ejector pin 112 and the second ejector pin 122 are arranged opposite to each other along the first direction X, and the distance between the first ejector pin 112 and the second ejector pin 122 along the first direction X is slightly smaller than the length of the measured object 30. At this time, by compressing the fine-tuning spring along the first direction X toward the side away from the first fixing member 11, the second ejector pin 122 can be driven to move along the first direction X toward the side away from the first fixing member 11, so as to increase the first ejector pin 112. The distance between the ejector pin 112 and the second ejector pin 122 is such that the distance between the two is slightly larger than the length of the object 30 to be measured, so that the object 30 to be measured can be placed between the first ejector pin 112 and the second ejector pin 122, and then the fine-tuning spring is reset along the first direction X toward the side close to the second fixing member 12, and the fine-tuning spring can push the second ejector pin 122 to move along the first direction X toward the side close to the first fixing member 11, so that the first ejector pin 112 and the second ejector pin 122 can respectively abut against the two ends of the object 30 to fix the object 30 to be measured.

[0055] Figure 3 It is a schematic diagram of the structure of the first fixing member provided in some embodiments of the present application.

[0056] like Figure 3 As shown, in some embodiments, the first fixing member 11 includes a gear set 113 and a fixing portion 114, the fixing portion 114 is used to fix the measured object 30, the gear set 113 includes an input gear 115 and an output gear 116 that mesh with each other, the input gear 115 and the output gear 116 are both rotatably arranged around a third axis parallel to the first axis, the fixing portion 114 and the output gear 116 are coaxially arranged, thereby driving the fixing portion 114 to rotate around the first axis, the transmission is stable, and the operation is convenient.

[0057] Optionally, the number of teeth of the input gear 115 may be greater than the number of teeth of the output gear 116 . Therefore, the gear set 113 is a speed-increasing gear set 113 , which can facilitate the input gear 115 to drive the output gear 116 to rotate.

[0058] Please continue to refer to Figure 1 In some embodiments, there are multiple detection components 20, and the multiple detection components 20 are arranged in sequence along the first direction X, so that the detection components 21 of the multiple detection components 20 can simultaneously detect the maximum and minimum runout amounts of the test piece 30 on different circles along the first direction X, thereby improving the detection efficiency.

[0059] It is understandable that the detection members 21 of the multiple detection assemblies 20 may abut against the same side of the detected object 30 at the same time, or may abut against different sides of the detected object 30 respectively, which is not limited in this embodiment.

[0060] When the detection pieces 21 of multiple detection components 20 respectively abut against different sides of the measured piece 30, the multiple detection components 20 can be respectively located on both sides of the measured piece 30, wherein the detection pieces 21 of some detection components 20 can abut against one side of the measured piece 30 along the second direction Y, and the detection pieces 21 of the remaining detection components 20 can abut against one side of the measured piece 30 along the third direction Z. At this time, before detecting the coaxiality of the measured piece 30, the two parts of the detection components 20 can respectively detect whether the two contact surfaces of the measured piece 30 and the detection pieces 21 are close to extending along the first direction X, thereby further ensuring that the reference axis of the measured piece 30 extends along the first direction X.

[0061] Figure 4 It is a schematic diagram of the structure of the detection component provided in some embodiments of the present application.

[0062] like Figure 4 As shown, in some embodiments, the detection assembly 20 also includes a detection base 22 movably disposed along a first direction X, and the detection member 21 is movably disposed on the detection base 22 along a second direction Y, so that the height of the detection member 21 can be adjusted to increase the application range and flexibility of the inspection tool.

[0063] Optionally, the detection base 22 may include a base body 221 and a guide rod 222 arranged on the base body 221, the guide rod 222 extends along the second direction Y, and the detection member 21 is detachably arranged on the guide rod 222, so that the movement of the detection member 21 along the second direction Y is achieved by adjusting the position of the detection member 21 on the guide rod 222, the structure is simple and the cost is low.

[0064] In some embodiments, the detection assembly 20 further includes a universal connector 23 , and the detection member 21 is connected to the detection base 22 via the universal connector 23 , so that the direction of the detection member 21 can be adjusted to improve the flexibility of the detection member 21 .

[0065] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A coaxiality inspection tool, characterized in that: include: A fixing assembly, comprising a first fixing member for fixing the measured object, at least a part of the first fixing member being rotatably arranged around a first axis extending along a first direction; A detection component includes a detection piece, wherein the detection piece is used to abut the detected piece along a second direction or a third direction and detect target parameters of a contact portion between the detected piece and the detection piece. The detection component is movably arranged along the first direction, the first direction is respectively perpendicular to the second direction and the third direction, and the second direction is arranged to intersect with the third direction.

2. The coaxiality inspection tool according to claim 1, characterized in that: The fixing assembly further includes a second fixing member for fixing the measured object, and the first fixing member and the second fixing member are spaced apart along the first direction.

3. The coaxiality inspection tool according to claim 2, characterized in that: The first fixing member and / or the second fixing member are movably arranged along the first direction.

4. The coaxiality inspection tool according to claim 2, characterized in that: The first fixing member includes a first base and a first ejector pin disposed on the first base, the first ejector pin is rotatably disposed around a first axis extending in the first direction, and a first needle portion is disposed on a side of the first ejector pin close to the second fixing member along the first direction for abutting against an end of the measured object; and / or, The second fixing member includes a second base and a second ejector pin disposed on the second base. The second ejector pin is provided with a second needle portion on one side of the second fixing member along the first direction for abutting against an end of the tested object.

5. The coaxiality inspection tool according to claim 4, characterized in that: At least one of the first ejector pin and the second ejector pin is movably disposed along the second direction and / or the third direction.

6. The coaxiality inspection tool according to claim 5, characterized in that: The second base includes a base body and a driving component arranged on the base body. The driving component comprises a first adjusting portion connected to the second ejector pin, at least a portion of the first adjusting portion is movably arranged along the second direction; and / or, The driving component includes a second adjusting portion connected to the second ejector pin, and at least a portion of the second adjusting portion is movably disposed along the third direction.

7. The coaxiality inspection tool according to claim 1, characterized in that: The first fixing member includes a gear set and a fixing portion, the fixing portion is used to fix the measured object, the gear set includes an input gear and an output gear that mesh with each other, the input gear and the output gear are both rotatably arranged around a third axis parallel to the first axis, and the fixing portion is coaxially arranged with the output gear.

8. The coaxiality gauge according to any one of claims 1 to 7, characterized in that: There are multiple detection components, and the multiple detection components are arranged in sequence along the first direction.

9. The coaxiality gauge according to any one of claims 1 to 7, characterized in that: The detection assembly further includes a detection base movably disposed along the first direction, and the detection member is movably disposed on the detection base along the second direction.

10. The coaxiality inspection tool according to claim 9, characterized in that: The detection component also includes a universal connector, and the detection member is connected to the detection base via the universal connector.