Coaxiality detection device
By setting up a support cantilever and a measuring station on the support frame, combined with an adjustment mechanism and guide rail assembly, the problem that existing devices cannot detect workpieces with recessed circular grooves has been solved, enabling flexible detection of workpieces with different structures and expanding the scope of application.
Patent Information
- Application Number
- CN202520359275.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-03
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-03
AI Technical Summary
Existing coaxiality testing devices cannot detect workpieces with recessed circular grooves at one or both ends, limiting their applicability.
A coaxiality detection device was designed, which uses a support cantilever and a measuring station set on a support frame. The support cantilever can adapt to workpieces with different structures. Combined with the adjustment mechanism and guide rail assembly, it can achieve applicability to different workpieces.
The scope of application of the detection device has been expanded, enabling it to detect workpieces with rotating shafts at both ends, rotating shafts at only one end, or recessed circular grooves at both ends, thus improving the flexibility and applicability of the detection.
Smart Images
Figure CN223795963U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to work piece detection equipment technical field, especially a coaxiality detection device for detecting work piece coaxiality. BACKGROUND
[0002] With the development of society and the continuous progress of science and technology, the shaft parts used in the market are more and more. Nowadays, various products are small or precise, so the shaft parts also need to be smaller and smaller, and the precision and tolerance of the shaft parts are more strictly required, so the shaft parts need to be detected before leaving the factory, and the coaxiality of the shaft parts is a key parameter, and the enterprises generally use the coaxiality detection device to detect the shaft parts to ensure the product quality.
[0003] The coaxiality detection device for detecting the shaft parts of the enterprise generally adopts the following structure, including the fixed base, the upper surface of the fixed base is fixedly provided with the first support block and the second support block, the first support block and the second support block are provided with the gap for placing the work piece to be detected, the upper surface of the first support block and the second support block is provided with the V-shaped groove for supporting the rotating shaft of the work piece, and the upper surface of the fixed base is provided with the micrometer located on one side of the first support block and the second support block, and the measuring rod of the micrometer can extend to the first support block and the second support block and measure the work piece.
[0004] The coaxiality detection device can detect the coaxiality of the work piece, but since the first support block and the second support block are square blocks, only the work piece with the rotating shaft extending out from both ends can be placed on the first support block and the second support block, and some work pieces have only one end with the rotating shaft, and the other end of the work piece has only the circular groove recessed in the work piece, so the coaxiality detection device cannot detect these work pieces, which brings inconvenience to the production of enterprises. UTILITY MODEL CONTENTS
[0005] The utility model aims at solving one of the technical problems in the prior art. Therefore, the utility model provides a coaxiality detection device, which can not only be suitable for detecting the work piece with the rotating shaft at both ends, but also be suitable for detecting the work piece with the circular groove recessed at one end or both ends, thereby increasing the detection application range of the coaxiality detection device and greatly facilitating the detection of the coaxiality of the work piece by enterprises.
[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:
[0007] According to the coaxiality detection device of some embodiments of the utility model, including: fixed base, support frame assembly and support frame assembly, the support frame assembly includes first support frame and second support frame, first support frame and second support frame are arranged at fixed base with interval, the upper portion of first support frame has the first support cantilever that protrudes the outside of first support frame and extends towards second support frame, the upper portion of second support frame has the second support cantile and extends towards first support frame, first support cantilever and second support cantilever are oppositely arranged, and measuring station is arranged between first support cantilever and second support cantilever;The micrometer stand is arranged at fixed base, the micrometer stand is located at one side of support frame assembly, the micrometer for detecting the coaxiality of workpiece is installed in the upper middle portion of micrometer stand, and the measuring rod of micrometer can extend to measuring station.
[0008] The coaxiality detection device of some embodiments of the utility model has the beneficial effects that:
[0009] The coaxiality detection device of the embodiment is provided with the first support cantilever protruding outwardly from the first support frame on the upper portion of the first support frame, the second support cantilever protruding outwardly from the second support frame on the upper portion of the second support frame, the first support cantilever and the second support cantilever are oppositely arranged, and the measuring station for placing the workpiece to be measured is arranged between the first support cantilever and the second support cantilever. When the workpiece is placed in the measuring station, for the workpiece with rotating shafts at both ends, the rotating shafts at both ends of the workpiece can be correspondingly placed on the first support cantilever and the second support cantilever. For the workpiece with a rotating shaft at one end and a circular groove at the other end, the rotating shaft at one end of the workpiece can be placed on the first support cantilever, and the second support cantilever can extend into the circular groove at the other end of the workpiece and support the workpiece. For the workpiece with circular grooves at both ends, the first support cantilever and the second support cantilever are correspondingly inserted into the circular grooves at both ends of the workpiece and support the workpiece. By adopting the above structure, the coaxiality detection device of the embodiment can be used to support and detect workpieces with different structures, greatly expanding the application range of the coaxiality detection device of the embodiment, and facilitating the enterprise to detect the coaxiality of the workpiece.
[0010] In some embodiments of the utility model, the first support frame and / or the second support frame are movably installed on the fixed base, the fixed base is provided with an adjusting mechanism for adjusting the distance between the first support frame and the second support frame, and the adjusting mechanism can make the first support frame and the second support frame relatively move close to or relatively move away from each other.
[0011] In some embodiments of the utility model, first support frame and second support frame all movable installation in fixed base, adjusting mechanism includes adjusting screw rod, first nut and second nut, adjusting screw rod is along horizontal direction rotation installation in fixed base, the outer surface of adjusting screw rod is provided with first threaded section and second threaded section, first threaded section and second threaded section are sequentially arranged along the axial direction of adjusting screw rod, the thread rotation direction of first threaded section and second threaded section is opposite, first nut is screwed on first threaded section, second nut is screwed on second threaded section, first nut is connected with first support frame, second nut is connected with second support frame, when adjusting screw rod positive rotation or reverse rotation, first nut and second nut can one to one correspondence drive first support frame and second support frame relative movement close or relative movement away.
[0012] In some embodiments of the utility model, the fixed base is provided with a guide rail pair assembly for guiding the relative movement of the first support frame and the second support frame close or away, the guide rail pair assembly includes a guide rail, a first slider and a second slider, the guide rail is fixedly installed on the fixed base, the guide rail is parallel to the adjusting screw rod, and the guide rail is located on one side of the adjusting screw rod, the first slider and the second slider are slidingly installed on the guide rail, the first support frame is fixedly installed on the first slider, the second support frame is fixedly installed on the second slider, the first support frame can reciprocate along the guide rail through the first slider, and the second support frame can reciprocate along the guide rail through the second slider.
[0013] In some embodiments of the utility model, the number of guide rail pair assemblies is two, two guide rails are arranged parallel to each other on one side of the adjusting screw rod, and the adjusting screw rod is located between the two guide rails, the first support frame is fixedly connected with the two first sliders, and the second support frame is fixedly connected with the two second sliders.
[0014] In some embodiments of the utility model, one end of the adjusting screw rod is provided with a holding part for easy holding.
[0015] In some embodiments of the utility model, the fixed base is provided with a measuring assembly for measuring the distance between the first support frame and the second support frame.
[0016] In some embodiments of the utility model, the measuring assembly includes a scale, a first pointer and a second pointer, the scale is fixedly installed on the fixed base, the first pointer is fixedly installed on the first support frame, and the first pointer is adjacent to or abuts the scale of the scale, the second pointer is fixedly installed on the second support frame, and the second pointer abuts the scale of the scale, when the first support frame and the second support frame relatively move close to or away from each other, the first pointer, the second pointer and the scale can cooperate with each other and measure the distance between the first support frame and the second support frame.
[0017] In some embodiments of the utility model, V-shaped grooves are formed in the upper portions of the first support cantilever and the second support cantilever.
[0018] In some embodiments of the utility model, the micrometer support is a magnetic support, the fixed base is a magnetic metal base capable of cooperating with the micrometer support to generate magnetic attraction, and the micrometer support is adsorbed on the fixed base by magnetic attraction. BRIEF DESCRIPTION OF DRAWINGS
[0019] The utility model will be further described in detail below in combination with the drawings and specific embodiments.
[0020] Figure 1 It is a structure schematic view of a coaxiality detection device of some embodiments of the utility model;
[0021] Figure 2 It is a structure schematic view of another angle of a coaxiality detection device shown in figure 1; Figure 1
[0022] It is a structure schematic view of another angle of a coaxiality detection device shown in figure 1; Figure 3 Figure 1 It is a structure schematic view of a coaxiality detection device for detecting the coaxiality of a workpiece shown in figure 1;
[0023] Figure 4 It is a structure schematic view of another angle of a coaxiality detection device for detecting the coaxiality of a workpiece shown in figure 1. Figure 1 DETAILED DESCRIPTION
[0024] This part will describe the specific embodiments of the utility model in detail, and the preferred embodiments of the utility model are shown in the drawings, and the drawings are used to supplement the description of the text part in the form of graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.
[0025] In the description of the utility model, need understanding, if the direction description, for example, the direction or positional relation of indication such as upper, lower, front, back, left, right is based on the direction or positional relation shown in drawing, only is for the convenience of describing the utility model and simplifying the description, and is not the indication or the hint device or the element of indicating or hinting must have the specific direction, with specific direction configuration and operation, therefore can not be understood as the restriction of the utility model.
[0026] In the description of the utility model, the meaning of several is one or more, the meaning of multiple is more than three, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number.If there is a description to the first, second and the like is only used for distinguishing the purpose of technical features, and can not be understood as indicating or hinting relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence relationship of indicated technical features.
[0027] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installing, connecting should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.
[0028] Figures 1 to 4 It is the schematic view of some embodiments of the coaxiality detection device of the utility model.
[0029] Refer to Figures 1 to 4 , and mainly refer to Figure 1 And Figure 2, according to certain embodiments of the utility model a coaxiality detection device, for the convenience of explanation, sometimes only call "coaxiality detection device", a coaxiality detection device of certain embodiments of the utility model, including fixed base 100, support frame assembly and micrometer support 300, in this embodiment, fixed base 100 is substantially flat cuboid shape, the upper surface of fixed base 100 forms installation plane, support frame assembly includes first support frame 210 and second support frame 220, first support frame 210 and second support frame 220 are spaced apart and arranged on the installation plane of the upper portion of fixed base 100, the upper portion of first support frame 210 has first support cantilever 211 that protrudes outside first support frame 210 and extends towards second support frame 220, the upper portion of second support frame 220 has second support cantilever 221 that protrudes outside second support frame 220 and extends towards first support frame 210, first support cantilever 211 and second support cantilever 221 are oppositely arranged, and a measuring station 230 is arranged between first support cantilever 211 and second support cantilever 221, the measuring station 230 is used to place the workpiece 700 to be measured;Micrometer support 300 is also arranged on the installation plane of the upper portion of fixed base 100, and micrometer support 300 is located at one side of support frame assembly, in this embodiment, micrometer support 300 is located at the intermediate position of the same side of first support frame 210 and second support frame 220, and a micrometer 310 for detecting the coaxiality of the workpiece is installed in the middle upper portion of micrometer support 300, and the measuring rod 311 of micrometer 310 can extend to the measuring station 230.
[0030] Referring to Figure 3 and Figure 4The coaxiality detection device of the embodiment is used for detecting the coaxiality of the workpiece. When the workpiece 700 is placed on the measuring station 230, for the workpiece 700 with rotating shafts 710 at both ends, the rotating shafts 710 at both ends of the workpiece 700 can be placed on the first supporting cantilever 211 and the second supporting cantilever 221 one by one. For the workpiece 700 with a rotating shaft at one end and a circular groove at the other end, the rotating shaft 710 at one end of the workpiece 700 can be placed on the first supporting cantilever 211, and the second supporting cantilever 221 is correspondingly inserted into the circular groove at the other end of the workpiece 700 and supports the workpiece 700. For the workpiece 700 with circular grooves at both ends, the first supporting cantilever 211 and the second supporting cantilever 221 are inserted into the circular grooves at both ends of the workpiece 700 one by one and support the workpiece 700. Then, the measuring rod 311 of the micrometer 310 is adjusted to be close to the workpiece 700, and then the workpiece 700 is rotated. At this time, the micrometer 310 can detect the coaxiality of the workpiece 700. The structure is simple and convenient to operate. By adopting the above structure, the coaxiality detection device of the embodiment can be used to support and detect workpieces 700 with different structures, greatly expanding the application range of the coaxiality detection device of the embodiment, and facilitating the enterprises to detect the coaxiality of the workpiece 700.
[0031] With reference to Figure 1 And Figure 2 In order to make the coaxiality detection device of the utility model applicable to measuring workpieces 700 with different lengths, in some embodiments of the utility model, the first supporting frame 210 and / or the second supporting frame 220 are movably installed on the fixed base 100. The fixed base 100 is provided with an adjusting mechanism for adjusting the distance between the first supporting frame 210 and the second supporting frame 220. The adjusting mechanism can make the first supporting frame 210 and the second supporting frame 220 relatively move close to or relatively move away from each other. In the embodiment, the adjusting mechanism is arranged on the fixed base 100, and the adjusting mechanism is used to adjust the relative movement of the first supporting frame 210 and the second supporting frame 220 to move close to or move away from each other, so that the length of the measuring station 230 between the first supporting frame 210 and the second supporting frame 220 is adapted to the length of the workpiece 700 to be measured. Therefore, the coaxiality detection device of the embodiment can measure workpieces 700 with different lengths, and the application range of the coaxiality detection device of the embodiment is increased.
[0032] In some embodiments of the utility model, first support frame 210 and second support frame 220 are both movably installed on the fixed base 100, the adjusting mechanism includes adjusting screw rod 400, first nut and second nut, adjusting screw rod 400 is rotatably installed on fixed base 100 along horizontal direction, the outer surface of adjusting screw rod 400 is provided with first threaded section and second threaded section, first threaded section and second threaded section are sequentially arranged along the axial direction of adjusting screw rod 400, the thread rotation direction of first threaded section and second threaded section is opposite, first nut is threadedly connected to first threaded section, second nut is threadedly connected to second threaded section, first nut is connected with first support frame 210, second nut is connected with second support frame 220, when adjusting screw rod 400 rotates forward or reversely, first nut and second nut can relatively move close or relatively move away along adjusting screw rod 400, and then first nut and second nut can correspondingly drive first support frame 210 and second support frame 220 to relatively move close or relatively move away.
[0033] In some embodiments of the utility model, first support frame 210 is movably installed on fixed base 100, and second support frame 220 is fixedly installed on fixed base 100, the adjusting mechanism includes adjusting screw rod 400 and first nut, adjusting screw rod 400 is rotatably installed on fixed base 100 along horizontal direction, the outer surface of adjusting screw rod 400 is provided with external thread, first nut is threadedly connected to the outer periphery of adjusting screw rod 400, first nut is fixedly connected with first support frame 210, when adjusting screw rod 400 rotates forward or reversely, first nut moves close to or moves away from second support frame 220 along adjusting screw rod 400, and then first nut drives first support frame 210 to move close to or move away from second support frame 220, thereby adjusting the spacing between first support frame 210 and second support frame 220.
[0034] Or second support frame 220 is movably installed on fixed base 100, and first support frame 210 is fixedly installed on fixed base 100, the adjusting mechanism includes adjusting screw rod 400 and second nut, adjusting screw rod 400 is rotatably installed on fixed base 100 along horizontal direction, the outer surface of adjusting screw rod 400 is provided with external thread, second nut is threadedly connected to the outer periphery of adjusting screw rod 400, second nut is fixedly connected with second support frame 220, when adjusting screw rod 400 rotates forward or reversely, second nut moves close to or moves away from first support frame 210 along adjusting screw rod 400, and then second nut drives second support frame 220 to move close to or move away from first support frame 210, thereby adjusting the spacing between first support frame 210 and second support frame 220.
[0035] It should be noted that the adjusting mechanism can also adopt other structures in addition to the above structure, for example, the adjusting mechanism comprises a gas cylinder fixedly installed on the fixed base 100, a piston rod of the gas cylinder is connected with the first support frame 210 or the second support frame 220, the gas cylinder drives the first support frame 210 to move close to or away from the second support frame 220, or the gas cylinder drives the second support frame 220 to move close to or away from the first support frame 210, so as to adjust the distance between the first support frame 210 and the second support frame 220.
[0036] In order to make the first support frame 210 and the second support frame 220 move more smoothly, in some embodiments of the utility model, the fixed base 100 is provided with a guide rail pair assembly for guiding the first support frame 210 and the second support frame 220 to move close to or move away from each other, the guide rail pair assembly comprises a guide rail 500, a first sliding block 510 and a second sliding block 520, the guide rail 500 is fixedly installed on the fixed base 100, the guide rail 500 is parallel to the adjusting screw rod 400, and the guide rail 500 is located on one side of the adjusting screw rod 400, the first sliding block 510 and the second sliding block 520 are slidably installed on the guide rail 500, the first support frame 210 is fixedly installed on the first sliding block 510, the second support frame 220 is fixedly installed on the second sliding block 520, the first support frame 210 can reciprocate along the guide rail 500 through the first sliding block 510, and the second support frame 220 can reciprocate along the guide rail 500 through the second sliding block 520. Further, the number of guide rail pair assemblies is two, two guide rails 500 are arranged in parallel on one side of the adjusting screw rod 400, and the adjusting screw rod 400 is located between the two guide rails 500, the first support frame 210 is fixedly connected with the two first sliding blocks 510, and the second support frame 220 is fixedly connected with the two second sliding blocks 520. By adopting the above structure, the first support frame 210 and the second support frame 220 can move close to or move away from each other along the guide rail 500, so that the movement of the first support frame 210 and the second support frame 220 is more stable and smooth.
[0037] In some embodiments of the utility model, one end of the adjusting screw rod 400 is provided with a holding portion 410 convenient for holding, specifically, the holding portion 410 is a cylindrical piece fixedly arranged at the end of the adjusting screw rod 400, the diameter of the cylindrical piece is greater than the diameter of the adjusting screw rod 400, and the user can hold the holding portion 410 and drive the adjusting screw rod 400 to rotate forward or reversely, so that the operation is more simple and convenient.
[0038] Referring to Figure 1 and Figure 3In some embodiments of the present application, the fixed base 100 is provided with a measuring assembly for measuring the distance between the first support frame 210 and the second support frame 220. Specifically, the measuring assembly comprises a scale 600, a first pointer 610 and a second pointer 620; the scale 600 is fixedly installed on the fixed base 100, the first pointer 610 is fixedly installed on the first support frame 210 and is adjacent to or abuts the scale of the scale 600, and the second pointer 620 is fixedly installed on the second support frame 220 and is adjacent to or abuts the scale of the scale 600; when the first support frame 210 and the second support frame 220 move relatively close to or away from each other, the first pointer 610, the second pointer 620 and the scale 600 can cooperate with each other to measure the distance between the first support frame 210 and the second support frame 220. By adopting the above structure, the user can accurately adjust the distance between the first support frame 210 and the second support frame 220, so that the first support frame 210 and the second support frame 220 can support workpieces 700 of different lengths.
[0039] In some embodiments of the present application, V-shaped grooves 240 are formed in the upper portions of the first support cantilever 211 and the second support cantilever 221. By forming V-shaped grooves 240 in the upper portions of the first support cantilever 211 and the second support cantilever 221, when the first support cantilever 211 and the second support cantilever 221 are used to support workpieces 700 having rotating shafts 710 at both ends, the rotating shafts 710 at both ends of the workpieces 700 can be correspondingly embedded in the two V-shaped grooves 240, so that the first support cantilever 211 and the second support cantilever 221 can better support and hold the workpieces 700.
[0040] In order to facilitate the user to adjust the position of the micrometer 310 relative to the support frame assembly, in some embodiments of the present application, the micrometer support 300 is a magnetic support, the fixed base 100 is a magnetic metal base capable of cooperating with the micrometer support 300 to generate magnetic attraction, and the micrometer support 300 is attracted to the fixed base 100 by magnetic force. Specifically, the micrometer support 300 is a permanent magnet support capable of generating magnetic attraction, and the fixed base 100 is an iron base or a nickel base or a cobalt base, etc. capable of being attracted by the permanent magnet. By adopting the above structure, the user can apply force to the micrometer support 300 and drive the micrometer support 300 to move to any position relative to the fixed base 100, and then the user removes the force applied to the micrometer support 300, at which time the micrometer support 300 can be firmly attracted to the fixed base 100, and the operation is simple and convenient.
[0041] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.
Claims
1. A coaxiality detection device, characterized by, The utility model relates to a coaxiality detection device, including: a fixed base (100); a support frame assembly, the support frame assembly includes first support frame (210) and second support frame (220), first support frame (210) and second support frame (220) are spaced apart to fixed base (100), the upper portion of first support frame (210) has first support cantilever (211) that protrudes the outside of first support frame (210) and extends towards second support frame (220), the upper portion of second support frame (220) has second support cantilever (221) that protrudes the outside of second support frame (220) and extends towards first support frame (210), first support cantilever (211) and second support cantilever (221) are oppositely arranged, and first support cantilever (211) and second support cantilever (221) are provided with measuring station (230) between them; dial indicator support (300) is arranged in fixed base (100), and dial indicator support (300) is located at one side of support frame assembly, and the middle upper portion of dial indicator support (300) is provided with dial indicator (310) for detecting the coaxiality of workpiece, and the measuring rod (311) of dial indicator (310) can extend to measuring station (230).
2. The coaxiality detection device according to claim 1, wherein: the first support frame (210) and / or the second support frame (220) are movably mounted on the fixed base (100); the fixed base (100) is provided with an adjusting mechanism for adjusting the distance between the first support frame (210) and the second support frame (220), and the adjusting mechanism can move the first support frame (210) and the second support frame (220) relatively close to or relatively far away from each other.
3. The coaxiality detection device according to claim 2, wherein: the first support frame (210) and the second support frame (220) are movably mounted on the fixed base (100), and the adjusting mechanism comprises an adjusting screw (400), a first nut and a second nut, the adjusting screw (400) is rotatably mounted on the fixed base (100) along a horizontal direction, the outer surface of the adjusting screw (400) is provided with a first threaded section and a second threaded section, the first threaded section and the second threaded section are arranged in sequence along the axial direction of the adjusting screw (400), the screw threads of the first threaded section and the second threaded section are opposite in rotation direction, the first nut is threadedly connected to the first threaded section, the second nut is threadedly connected to the second threaded section, the first nut is connected to the first support frame (210), and the second nut is connected to the second support frame (220), when the adjusting screw (400) is rotated forward or reversely, the first nut and the second nut can drive the first support frame (210) and the second support frame (220) to move relatively close to or relatively far away from each other one by one.
4. The coaxiality detection device according to claim 3, characterized in that: the fixed base (100) is provided with a guide rail pair assembly for guiding the relative movement of the first support frame (210) and the second support frame (220) to move close or move away, the guide rail pair assembly comprises a guide rail (500), a first sliding block (510) and a second sliding block (520), the guide rail (500) is fixedly installed on the fixed base (100), the guide rail (500) is parallel to the adjusting screw (400), and the guide rail (500) is located on one side of the adjusting screw (400), the first sliding block (510) and the second sliding block (520) are slidably installed on the guide rail (500), the first support frame (210) is fixedly installed on the first sliding block (510), the second support frame (220) is fixedly installed on the second sliding block (520), the first support frame (210) can reciprocate along the guide rail (500) through the first sliding block (510), and the second support frame (220) can reciprocate along the guide rail (500) through the second sliding block (520).
5. The coaxiality detection device according to claim 4, characterized in that: the number of guide rail pair assemblies is two, and the two guide rails (500) are arranged in parallel on one side of the adjusting screw (400), and the adjusting screw (400) is located between the two guide rails (500), the first support frame (210) is fixedly connected with the two first sliding blocks (510), and the second support frame (220) is fixedly connected with the two second sliding blocks (520).
6. The coaxiality detection device according to claim 3, characterized in that: one end of the adjusting screw (400) is provided with a holding portion (410) for convenient holding.
7. The coaxiality detection device according to claim 2, characterized in that: the fixed base (100) is provided with a measuring assembly for measuring the distance between the first support frame (210) and the second support frame (220).
8. The coaxiality detection device according to claim 7, characterized in that: the measuring assembly comprises a scale (600), a first pointer (610) and a second pointer (620); the scale (600) is fixedly installed on the fixed base (100), the first pointer (610) is fixedly installed on the first support frame (210), and the first pointer (610) is adjacent to or abuts the scale of the scale (600), the second pointer (620) is fixedly installed on the second support frame (220), and the second pointer (620) abuts the scale of the scale (600). When the first support frame (210) and the second support frame (220) move relatively close or far away, the first pointer (610), the second pointer (620) and the scale (600) can cooperate with each other and measure the distance between the first support frame (210) and the second support frame (220).
9. The coaxiality detection device according to claim 1, characterized in that: The upper part of the first support cantilever (211) and the second support cantilever (221) are provided with V-shaped grooves (240).
10. The coaxiality detection device according to claim 1, characterized in that: The micrometer gauge support (300) is a magnetic support, the fixed base (100) is a magnetic metal base capable of cooperating with the micrometer gauge support (300) to generate magnetic attraction, and the micrometer gauge support (300) is adsorbed on the fixed base (100) through magnetic attraction.